/*! tailwindcss v4.3.0 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-space-y-reverse:0;--tw-border-style:solid;--tw-font-weight:initial;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-gray-200:oklch(92.8% .006 264.531);--spacing:.25rem;--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-xl:1.25rem;--text-xl--line-height:calc(1.75 / 1.25);--font-weight-bold:700;--font-weight-extrabold:800;--font-weight-black:900;--radius-xs:.125rem;--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--radius-xl:.75rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}*,:after,:before,::backdrop{border-color:var(--color-gray-200,currentcolor)}::file-selector-button{border-color:var(--color-gray-200,currentcolor)}html{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}html,body{background:var(--color-background);min-height:100%;color:var(--color-text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,textarea{font:inherit}button{cursor:pointer}body{overflow-x:hidden}#app-shell{min-height:100vh}.using-mouse *{outline:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.block{display:block}.flex{display:flex}.hidden{display:none}.inline-block{display:inline-block}.table{display:table}.min-w-0{min-width:calc(var(--spacing) * 0)}.flex-1{flex:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.list-disc{list-style-type:disc}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-center{justify-content:center}.gap-2{gap:calc(var(--spacing) * 2)}.gap-6{gap:calc(var(--spacing) * 6)}:where(.space-y-2>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 2) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 2) * calc(1 - var(--tw-space-y-reverse)))}.rounded-sm{border-radius:var(--radius-sm)}.border{border-style:var(--tw-border-style);border-width:1px}.bg-\[var\(--color-info\)\]{background-color:var(--color-info)}.bg-\[var\(--color-success\)\]{background-color:var(--color-success)}.bg-\[var\(--color-text-secondary\)\]{background-color:var(--color-text-secondary)}.p-2{padding:calc(var(--spacing) * 2)}.p-4{padding:calc(var(--spacing) * 4)}.px-2{padding-inline:calc(var(--spacing) * 2)}.py-1{padding-block:calc(var(--spacing) * 1)}.pl-4{padding-left:calc(var(--spacing) * 4)}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}.font-black{--tw-font-weight:var(--font-weight-black);font-weight:var(--font-weight-black)}.font-bold{--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold)}.font-extrabold{--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold)}.whitespace-nowrap{white-space:nowrap}.text-\[var\(--color-info-text\)\]{color:var(--color-info-text)}.text-\[var\(--color-text\)\]{color:var(--color-text)}.text-\[var\(--color-text-inverse\)\]{color:var(--color-text-inverse)}.text-\[var\(--color-text-secondary\)\]{color:var(--color-text-secondary)}.uppercase{text-transform:uppercase}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}@media (hover:hover){.hover\:text-\[var\(--color-info\)\]:hover{color:var(--color-info)}}}:root{--chat-content-max-width:760px;--font-display-cjk:"Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;--font-display-latin:"Instrument Serif", Georgia, "Times New Roman", serif;--radius-xs:4px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-pill:999px;--motion-duration-tooltip:.1s;--motion-duration-action:.14s;--motion-duration-standard:.15s;--motion-duration-learning-pulse:1.2s;--motion-duration-typing-pulse:1.4s;--motion-duration-auth-character:.7s;--motion-duration-landing-enter:.72s;--motion-duration-landing-word:.52s;--motion-ease-standard:ease-out;--motion-ease-action:ease;--motion-ease-pulse:ease-in-out;--motion-ease-expressive:cubic-bezier(.16, 1, .3, 1);--color-background:#f5f5f0;--color-surface:#fff;--color-surface-subtle:#fbfaf8;--color-surface-muted:#f2efec;--color-surface-strong:#eceae7;--color-surface-pressed:#e7e5e4;--color-surface-disabled:#d6d3d1;--color-surface-inverse:#201f1c;--color-surface-inverse-soft:#302b27;--color-surface-glass:#ffffff8c;--color-surface-glass-light:#ffffff61;--color-surface-active:#e7e4de94;--color-surface-tag:#e7e5e480;--color-surface-hover-translucent:#e7e5e48c;--color-text:#1c1917;--color-text-heading:#202522;--color-text-emphasis:#343a35;--color-text-strong:#171513;--color-text-secondary:#57534e;--color-text-muted:#78716c;--color-text-subtle:#a8a29e;--color-text-disabled:#c4beb7;--color-text-inverse:#fff;--color-border:#e7e5e4;--color-border-subtle:#eeece8;--color-border-strong:#d6d3d1;--color-border-emphasis:#cfc8c1;--color-border-translucent:#d6d3cdb8;--color-surface-muted-translucent:#eeece8cc;--color-text-subtle-translucent:#a8a29e38;--color-focus:#66816e;--color-focus-ring:#66816e1f;--color-control-primary:#343a35;--color-control-primary-hover:#171513;--color-control-muted:#837c76;--color-control-disabled:#a8a29e;--color-skeleton:#eee9e2;--color-skeleton-highlight:#f8f5f0;--color-brand:#2f6b4f;--color-brand-hover:#265c43;--color-brand-surface:#e2ebe5;--color-brand-border:#b9c5bc;--color-brand-text:#35664d;--color-accent:#d4a574;--color-accent-strong:#d59052;--color-accent-surface:#fdf6ee;--color-accent-surface-strong:#eadfd3;--color-accent-border:#d4c8bc;--color-accent-text:#9a5827;--color-accent-translucent:#d4a57440;--color-success:#10b981;--color-success-hover:#0bb874;--color-success-surface:#eff8f1;--color-success-surface-strong:#e7fff3;--color-success-border:#c8e4cf;--color-success-text:#2f7a47;--color-warning:#f59e0b;--color-warning-surface:#fff7e3;--color-warning-border:#ecd58c;--color-warning-text:#926718;--color-warning-translucent:#f59e0b24;--color-danger:#ef4444;--color-danger-hover:#dc2626;--color-danger-muted:#d36a5f;--color-danger-surface:#fff0ef;--color-danger-border:#efcaca;--color-danger-text:#a24646;--color-info:#3b6f93;--color-info-surface:#eef5f8;--color-info-border:#c9dce4;--color-info-text:#2f657a;--color-code-background:#201f1c;--color-code-background-strong:#2b2926;--color-code-text:#f4efe7;--color-code-accent:#f0c27d;--color-editor-background:#151718;--color-editor-text:#f8efe2;--color-editor-gutter:#6f7676;--color-editor-accent:#e9a35e;--color-editor-accent-muted:#d3a26e;--color-editor-active-line:#e9a35e14;--color-editor-selection:#e9a35e47;--color-chart-1:#287568;--color-chart-2:#d28a45;--color-chart-3:#567ea3;--color-chart-4:#bd5f59;--color-chart-5:#826d91;--color-chart-6:#78934f;--color-chart-axis:#716a63;--color-chart-grid:#e9e4de;--color-chart-legend:#5f5851;--color-chart-tooltip-surface:#fffffffa;--color-chart-tooltip-border:#ded8d1;--color-chart-tooltip-text:#302b27;--color-chart-tooltip-shadow:#332b241a;--color-google-blue:#4285f4;--color-google-green:#34a853;--color-google-yellow:#fbbc05;--color-google-red:#ea4335;--color-overlay:#1c1f1d57;--color-shadow-subtle:#2c251f0d;--color-shadow-soft:#2c251f0f;--color-shadow:#30272014;--color-shadow-strong:#1c191724;--color-shadow-elevated:#262a272e;--color-shadow-deep:#241e181f;--shadow-surface-contact:0 1px 4px var(--color-shadow-subtle);--shadow-tooltip-float:0 2px 12px var(--color-shadow);--shadow-menu-float:0 12px 32px var(--color-shadow-strong);--shadow-modal-float:0 18px 55px var(--color-shadow-elevated);--shadow-side-panel-float:-12px 0 32px var(--color-shadow-deep)}.auth-page{background:var(--color-background);justify-content:center;align-items:center;min-height:100vh;padding:32px 20px;display:flex}.auth-page--split{background:var(--color-surface);align-items:stretch;min-height:100svh;padding:0}.auth-split-layout{grid-template-columns:minmax(500px,1.08fr) minmax(430px,.92fr);width:100%;min-height:100svh;margin:0;display:grid}.auth-task-pane{background:var(--color-surface);justify-content:center;align-items:center;min-height:0;padding:40px 52px;display:flex;overflow-y:auto}.auth-flow-back{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);height:40px;transition:background-color var(--motion-duration-standard) var(--motion-ease-standard), border-color var(--motion-duration-standard) var(--motion-ease-standard), color var(--motion-duration-standard) var(--motion-ease-standard);justify-content:center;align-items:center;width:40px;margin-bottom:24px;text-decoration:none;display:flex}.auth-flow-back:hover{background:var(--color-surface-muted);border-color:var(--color-brand-border);color:var(--color-brand)}.auth-flow-back:focus-visible{box-shadow:0 0 0 3px var(--color-focus-ring);outline:1px solid var(--color-focus);outline-offset:2px}.auth-panel{background:var(--color-surface);border:1px solid var(--color-brand-surface);border-radius:var(--radius-md);box-shadow:0 12px 40px var(--color-shadow);width:min(100%,420px);padding:34px}.auth-panel--split{box-shadow:none;background:0 0;border:0;border-radius:0;width:min(100%,440px);min-height:min(620px,100svh - 80px);padding:0}.auth-panel--split .auth-brand{display:none}.auth-flow-content{animation:auth-flow-enter .18s var(--motion-ease-action) both}.auth-panel--split .auth-heading{margin-bottom:32px}.auth-panel--split .auth-heading h1{margin-bottom:10px;font-size:32px}.auth-panel--split .auth-heading p{font-size:15px}.auth-showcase{background:var(--color-surface-muted);border-right:1px solid var(--color-border);flex-direction:column;min-height:0;padding:28px 32px 24px;display:flex;overflow:hidden}.auth-showcase-header{z-index:2;flex:none;justify-content:space-between;align-items:center;gap:20px;display:flex;position:relative}.auth-showcase-brand{color:var(--color-text-heading);align-items:center;gap:11px;min-width:0;text-decoration:none;display:inline-flex}.auth-showcase-brand-mark{color:var(--color-brand);flex:none;display:flex}.auth-showcase-brand>span:last-child{min-width:0;display:grid}.auth-showcase-brand strong{font-family:var(--font-display-latin);font-size:23px;font-style:italic;font-weight:400;line-height:1}.auth-showcase-brand small{color:var(--color-text-muted);margin-top:3px;font-size:11px;line-height:1.4}.auth-showcase-brand:focus-visible{box-shadow:0 0 0 3px var(--color-focus-ring);outline:1px solid var(--color-focus);outline-offset:2px}.auth-character-scene{flex:auto;min-height:420px;position:relative}.auth-character-stage{width:30rem;height:22.5rem;position:absolute;top:51%;left:50%;transform:translate(-50%,-50%)}.auth-scene-character{transform-origin:bottom;transition:height var(--motion-duration-auth-character) var(--motion-ease-pulse), transform var(--motion-duration-auth-character) var(--motion-ease-pulse);will-change:height, transform;position:absolute;bottom:0}.auth-scene-character--green{background:var(--color-brand);z-index:1;border-radius:20px 20px 0 0;width:10.625rem;height:23.125rem;left:3.75rem}.auth-scene-character--ink{background:var(--color-surface-inverse);z-index:2;border-radius:16px 16px 0 0;width:7.1875rem;height:18.125rem;left:13.75rem}.auth-scene-character--accent{background:var(--color-accent);z-index:3;border-radius:999px 999px 0 0;width:14.375rem;height:11.875rem;left:0}.auth-scene-character--gold{z-index:4;background:#e9c46a;border-radius:999px 999px 0 0;width:8.4375rem;height:13.4375rem;left:18.125rem}.auth-scene-eyes{transform-origin:50%;transition:transform var(--motion-duration-auth-character) var(--motion-ease-pulse);will-change:transform;align-items:center;gap:1rem;display:flex;position:absolute}.auth-scene-eyes--white{top:2.5rem;left:2.8125rem}.auth-scene-character--ink .auth-scene-eyes--white{gap:.8rem;top:2rem;left:1.625rem}.auth-scene-eyes--bare{top:5.625rem;left:5.125rem}.auth-scene-character--gold .auth-scene-eyes--bare{gap:.8rem;top:2.5rem;left:3.25rem}.auth-scene-eyeball{background:var(--color-surface);height:1.1rem;transition:height var(--motion-duration-standard) var(--motion-ease-action), transform .1s var(--motion-ease-standard);will-change:height, transform;border-radius:50%;justify-content:center;align-items:center;width:1.1rem;display:flex;overflow:hidden}.auth-scene-eyeball--small{width:1rem;height:1rem}.auth-scene-eyeball--blink{height:2px}.auth-scene-pupil{background:var(--color-text-heading);height:.45rem;transition:transform .1s var(--motion-ease-standard);will-change:transform;border-radius:50%;width:.45rem;display:block}.auth-scene-pupil--small{width:.38rem;height:.38rem}.auth-scene-pupil--bare{height:.75rem;transition:transform var(--motion-duration-auth-character) var(--motion-ease-pulse);width:.75rem}.auth-scene-mouth{transform-origin:50%;transition:opacity var(--motion-duration-auth-character) var(--motion-ease-pulse), transform var(--motion-duration-auth-character) var(--motion-ease-pulse);will-change:opacity, transform;position:absolute}.auth-scene-mouth--sad{border:3px solid var(--color-text-heading);opacity:0;border-top:0;border-radius:0 0 999px 999px;width:1.8rem;height:.85rem;top:5.8rem;left:5rem}.auth-scene-mouth--visible{opacity:1}.auth-scene-mouth--line{background:var(--color-text-heading);border-radius:999px;width:3.125rem;height:.25rem;top:5.5rem;left:2.5rem}.auth-scene-status{color:var(--color-text-muted);align-items:center;gap:6px;font-size:11px;display:inline-flex;position:absolute;bottom:22px;left:50%;transform:translate(-50%)}.auth-scene-status i{background:var(--color-success);border-radius:50%;width:6px;height:6px}.auth-scene-shake{animation:.9s cubic-bezier(.36,.07,.19,.97) both auth-scene-shake}.auth-brand{color:var(--color-text-heading);align-items:center;gap:9px;margin-bottom:32px;display:flex}.auth-brand>span{background:var(--color-brand);border-radius:var(--radius-sm);color:var(--color-text-inverse);justify-content:center;align-items:center;width:34px;height:34px;display:flex}.auth-brand strong{font-family:var(--font-display-latin);font-size:22px;font-style:italic;font-weight:400}.auth-heading{margin-bottom:26px}.auth-heading h1{color:var(--color-text-heading);letter-spacing:0;margin:0 0 8px;font-size:25px;font-weight:750;line-height:1.2}.auth-heading p{color:var(--color-text-muted);margin:0;font-size:14px;line-height:1.5}.auth-form{gap:18px;display:grid}.auth-field{color:var(--color-text-emphasis);gap:8px;font-size:14px;font-weight:650;display:grid}.auth-input-wrap{background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);color:var(--color-text-subtle);min-height:46px;transition:border-color var(--motion-duration-standard), box-shadow var(--motion-duration-standard);align-items:center;padding:0 13px;display:flex}.auth-input-wrap:focus-within{border-color:var(--color-brand);box-shadow:0 0 0 3px var(--color-focus-ring)}.auth-input-wrap input{color:var(--color-text-heading);font:inherit;background:0 0;border:0;outline:0;width:100%;min-width:0;padding:0 0 0 10px;font-weight:500}.auth-password-wrap input{padding-left:0}.auth-input-wrap input::placeholder{color:var(--color-text-subtle)}.auth-password-toggle{color:var(--color-text-muted);background:0 0;border:0;justify-content:center;align-items:center;width:36px;height:36px;margin-right:-8px;padding:0;display:flex}.auth-password-heading{color:var(--color-text-emphasis);justify-content:space-between;align-items:center;margin-bottom:-10px;font-size:14px;font-weight:650;display:flex}.auth-password-heading a,.auth-login-help a,.auth-footer a{color:var(--color-brand);font-weight:700;text-decoration:none}.auth-password-heading a:hover,.auth-login-help a:hover,.auth-footer a:hover{text-decoration:underline}.auth-submit{background:var(--color-brand);border-radius:var(--radius-sm);color:var(--color-text-inverse);border:0;justify-content:center;align-items:center;gap:8px;min-height:46px;padding:0 18px;font-size:15px;font-weight:750;display:flex}.auth-submit:hover:not(:disabled){background:var(--color-brand-hover)}.auth-submit:disabled{cursor:wait;opacity:.7}.auth-login-help{margin-top:-4px;font-size:14px}.auth-divider{color:var(--color-text-muted);white-space:nowrap;align-items:center;gap:14px;margin:28px 0 20px;font-size:13px;display:flex}.auth-divider:before,.auth-divider:after{background:var(--color-brand-surface);content:"";width:100%;height:1px}.auth-social-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.auth-social-button{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-heading);min-height:50px;transition:background-color var(--motion-duration-standard), border-color var(--motion-duration-standard), box-shadow var(--motion-duration-standard), transform var(--motion-duration-standard);justify-content:center;align-items:center;gap:8px;padding:0 12px;font-size:14px;font-weight:700;display:flex}.auth-social-button:hover:not(:disabled){background:var(--color-surface-subtle);border-color:var(--color-brand-border);box-shadow:0 4px 12px var(--color-shadow-soft);transform:translateY(-1px)}.auth-social-button:focus-visible{border-color:var(--color-brand);box-shadow:0 0 0 3px var(--color-focus-ring);outline:0}.auth-social-button:disabled{cursor:wait;opacity:.65}.auth-provider-icon{flex:none;width:21px;height:21px}.auth-flow-content>.auth-message{margin-top:14px}.auth-spinner{animation:.8s linear infinite auth-spin}.auth-message{border-radius:var(--radius-sm);border:1px solid;padding:10px 12px;font-size:13px;line-height:1.5}.auth-message--error{background:var(--color-danger-surface);border-color:var(--color-danger-border);color:var(--color-danger-text)}.auth-message--success{background:var(--color-success-surface);border-color:var(--color-success-border);color:var(--color-brand-hover)}.auth-footer{border-top:1px solid var(--color-brand-surface);color:var(--color-text-muted);text-align:center;margin-top:26px;padding-top:22px;font-size:14px}.auth-panel--split .auth-footer{border-top:0;margin-top:28px;padding-top:0}.auth-footer p{margin:0}.auth-callback-status{color:var(--color-text-secondary);font-size:15px}@keyframes auth-spin{to{transform:rotate(360deg)}}@keyframes auth-flow-enter{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@keyframes auth-scene-shake{0%,to{translate:0}14%{translate:-10px}28%{translate:9px}42%{translate:-7px}56%{translate:6px}70%{translate:-4px}84%{translate:2px}90%{translate:-.5px}}.learning-page{background:var(--color-background);min-width:0;height:100vh;min-height:100vh;transition:grid-template-columns .3s var(--motion-ease-expressive);grid-template-columns:260px minmax(0,1fr);display:grid;overflow:hidden}.learning-page.learning-sidebar-open{grid-template-columns:260px minmax(0,1fr) 320px}.learning-page.learning-sidebar-open.tutor-digest-sidebar-open{grid-template-columns:260px minmax(0,1fr) clamp(400px,45vw,720px)}.learning-page.session-sidebar-collapsed{grid-template-columns:52px minmax(0,1fr)}.learning-page.session-sidebar-collapsed.learning-sidebar-open{grid-template-columns:52px minmax(0,1fr) 320px}.learning-page.session-sidebar-collapsed.learning-sidebar-open.tutor-digest-sidebar-open{grid-template-columns:52px minmax(0,1fr) clamp(400px,45vw,720px)}.learning-main{background:var(--color-surface);border-left:0;border-right:0;flex-direction:column;min-width:0;height:100vh;display:flex;overflow:hidden}.empty-session-page{min-width:0}.empty-session-page .learning-main{background:var(--color-surface);border-right:0}.session-sidebar{background:var(--color-background);border-right:1px solid var(--color-border);color:var(--color-text);flex-direction:column;gap:0;min-width:0;height:100vh;padding:0;display:flex;overflow:hidden}.session-sidebar-top{flex:none;padding:12px}.session-brand{color:var(--color-text);grid-template-columns:auto 1fr auto;align-items:center;gap:8px;min-height:28px;padding:0;display:grid}.session-brand strong{font-family:var(--font-display-latin);font-size:17px;font-style:italic;font-weight:400;line-height:1.5}.session-brand button,.digest-sidebar-header button,.session-sidebar-footer button,.new-session-button,.session-item{color:inherit;background:0 0;border:0;align-items:center;display:inline-flex}.session-brand button{color:var(--color-text-subtle);justify-content:center;width:28px;height:28px;padding:0}.session-sidebar-toggle-button{border-radius:var(--radius-sm);cursor:pointer;transition:background var(--motion-duration-standard) var(--motion-ease-standard), color var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard)}.session-sidebar-toggle-button:hover{background:var(--color-surface-pressed);color:var(--color-text)}.session-sidebar-toggle-button:active{transform:scale(.94)}.session-sidebar-toggle-button:focus-visible,.session-logo-link:focus-visible,.new-session-button.new-session-button--icon:focus-visible{outline:2px solid var(--color-brand-border);outline-offset:2px}.session-logo{color:var(--color-text-emphasis);border:0;border-radius:0;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.session-logo-link{border-radius:var(--radius-sm);cursor:pointer;transition:background var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard);text-decoration:none}.session-logo-link:hover{transform:scale(1.05)}.session-sidebar--collapsed .session-sidebar-top{border-bottom:1px solid var(--color-border);flex-direction:column;align-items:center;padding:12px;display:flex}.session-sidebar-collapsed-actions{flex-direction:column;align-items:center;gap:8px;padding-top:8px;display:flex}.session-sidebar--collapsed .session-sidebar-toggle-button,.new-session-button.new-session-button--icon{border-radius:var(--radius-sm);color:var(--color-text-subtle);background:0 0;border:0;justify-content:center;align-items:center;width:28px;height:28px;min-height:28px;margin:0;padding:0;display:inline-flex}.session-sidebar--collapsed .session-sidebar-toggle-button:hover,.new-session-button.new-session-button--icon:hover{background:var(--color-surface-pressed);color:var(--color-text)}.session-sidebar--collapsed .session-logo-link:hover,.session-sidebar--collapsed .session-sidebar-toggle-button:hover,.session-sidebar--collapsed .new-session-button.new-session-button--icon:hover,.session-sidebar--collapsed .session-account>button:hover{transform:scale(1.08)}.new-session-button{border-radius:var(--radius-md);color:var(--color-text-secondary);justify-content:flex-start;gap:8px;width:100%;min-height:34px;margin-top:12px;padding:7px 8px;font-size:13px;font-weight:500}.new-session-button:hover{background:var(--color-surface);color:var(--color-text)}.session-list{flex-direction:column;flex:1;gap:0;min-height:0;padding:4px 8px;display:flex;overflow-y:auto}.session-group{display:block}.session-section-header{border-radius:var(--radius-sm);color:var(--color-text-subtle);cursor:pointer;text-align:left;background:0 0;border:0;justify-content:space-between;align-items:center;gap:8px;width:100%;min-height:22px;margin:10px 0 3px;padding:0 8px;display:flex}.session-section-header:hover{background:var(--color-surface-glass);color:var(--color-text-muted)}.session-section-title,.session-section-summary em{font-size:12px;font-style:normal;font-weight:500}.session-section-summary{align-items:center;gap:5px;display:flex}.session-section-summary em{color:var(--color-text-disabled)}.session-section-chevron{color:var(--color-text-disabled);transition:transform .16s;transform:rotate(-90deg)}.session-section-chevron.expanded{transform:rotate(0)}.session-group-items{gap:0;display:grid}.session-item{border-radius:var(--radius-md);cursor:pointer;text-align:left;grid-template-columns:auto minmax(0,1fr) auto;justify-content:stretch;gap:9px;width:100%;min-height:46px;padding:7px 8px;display:grid;position:relative}.session-item:hover{background:var(--color-surface)}.session-item:hover:not(.active) strong{color:var(--color-text-emphasis)}.session-item svg{color:var(--color-text-subtle);width:14px;height:14px;margin-top:3px}.session-item span{gap:3px;min-width:0;display:grid}.session-item strong{color:var(--color-text-secondary);text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:500;line-height:1.28;display:block;overflow:hidden}.session-item small,.session-item em{color:var(--color-text-subtle);font-size:11px;font-style:normal;font-weight:600}.session-item em{place-self:end}.session-item.active{background:var(--color-surface);box-shadow:none}.session-item.active strong{color:var(--color-text);font-weight:600}.session-item.active .session-item-icon{color:var(--color-text-secondary)}.session-item.has-progress{min-height:52px}.session-item-progress-row{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:7px!important;display:grid!important}.session-item-progress-track{background:var(--color-surface-pressed);border-radius:var(--radius-pill);height:2px;overflow:hidden;display:block!important}.session-item-progress-track i{background:var(--color-accent);height:100%;display:block}.session-item.new-chat-session{min-height:58px}.session-item-label{gap:3px;min-width:0;display:grid}.session-item-menu-trigger{border-radius:var(--radius-sm);color:var(--color-text-subtle);cursor:pointer;opacity:0;height:30px;transition:opacity var(--motion-duration-standard), background var(--motion-duration-standard), color var(--motion-duration-standard);background:0 0;border:none;justify-content:center;align-self:start;align-items:center;width:30px;margin:-1px -2px 0 0;padding:0;display:flex}.session-item:hover .session-item-menu-trigger,.session-item-menu-trigger:focus-visible,.session-item-menu-trigger.open{opacity:1}.session-item-menu-trigger:hover,.session-item-menu-trigger.open{background:var(--color-surface-pressed);color:var(--color-text)}.session-item-menu{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-menu-float);z-index:50;gap:0;min-width:190px;padding:8px;display:grid;position:absolute;top:44px;right:6px}.session-item-menu button{border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;white-space:nowrap;background:0 0;border:none;align-items:center;gap:10px;width:100%;min-height:38px;padding:0 10px;font-size:13px;font-weight:500;display:flex}.session-item-menu button:hover{background:var(--color-background);color:var(--color-text)}.session-item-menu button.danger{color:var(--color-danger)}.session-item-menu button.danger:hover{background:var(--color-danger-surface);color:var(--color-danger-hover)}.session-item-menu-separator{background:var(--color-surface-pressed);height:1px;margin:6px 8px}.session-item.editing{border-radius:var(--radius-md);grid-template-columns:auto minmax(0,1fr);gap:10px;padding:10px 12px;display:grid}.session-rename-input-wrap{min-width:0}.session-rename-input{background:var(--color-surface-muted);border:1.5px solid var(--color-accent-border);border-radius:var(--radius-sm);color:var(--color-text-heading);outline:none;width:100%;padding:6px 10px;font-size:16px;font-weight:600}.session-rename-input:focus{border-color:var(--color-accent)}.session-sidebar-footer{border-top:1px solid var(--color-border);gap:2px;padding:12px 4px 0;display:grid}.session-sidebar-footer--collapsed{margin-top:auto;padding:8px 0 12px}.session-account.session-account--collapsed{flex-direction:column;gap:4px;min-height:0;margin:0;padding:0;display:flex}.session-sidebar--collapsed .session-account>button{transition:background var(--motion-duration-standard) var(--motion-ease-standard), color var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard)}.session-sidebar-footer button{border-radius:var(--radius-md);color:var(--color-text-subtle);justify-content:flex-start;gap:10px;min-height:34px;padding:0 8px;font-size:14px;font-weight:650}.session-account{grid-template-columns:auto minmax(0,1fr) auto auto auto;align-items:center;gap:9px;min-height:48px;margin-top:8px;padding:8px;display:grid}.session-account-avatar{background:var(--color-brand-surface);color:var(--color-brand-text);border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.session-account-copy{gap:2px;min-width:0;display:grid}.session-account-copy strong,.session-account-copy small{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.session-account-copy strong{color:var(--color-text-secondary);font-size:13px}.session-account-copy small{color:var(--color-text-subtle);font-size:11px}.session-sidebar-footer .session-account>button{border-radius:var(--radius-sm);color:var(--color-text-subtle);justify-content:center;width:32px;height:32px;min-height:32px;padding:0}.session-sidebar-footer .session-account>button:hover{background:var(--color-surface-strong);color:var(--color-text-emphasis)}.session-sidebar-footer .session-account>.push-notification-button.is-active{background:var(--color-brand-surface);color:var(--color-brand-text)}.session-sidebar-footer .session-account>button:disabled{cursor:wait;opacity:.5}.pwa-connectivity-banner{background:var(--color-surface-inverse);border-radius:var(--radius-pill);bottom:calc(18px + env(safe-area-inset-bottom));color:var(--color-text-inverse);z-index:120;padding:8px 14px;font-size:12px;position:fixed;left:50%;transform:translate(-50%)}.pwa-update-banner{background:var(--color-surface);border:1px solid var(--color-brand-border);bottom:calc(18px + env(safe-area-inset-bottom));box-shadow:0 16px 40px var(--color-shadow-elevated);z-index:121;border-radius:14px;align-items:center;gap:10px;max-width:calc(100vw - 28px);padding:12px;display:flex;position:fixed;right:18px}.pwa-update-banner>span{gap:2px;min-width:170px;display:grid}.pwa-update-banner strong{color:var(--color-text-heading);font-size:13px}.pwa-update-banner small{color:var(--color-text-muted);font-size:11px}.pwa-update-banner button{border-radius:var(--radius-md);border:0;min-height:32px;padding:0 10px;font-size:12px;font-weight:650}.pwa-update-later{color:var(--color-text-muted);background:0 0}.pwa-update-now{background:var(--color-brand);color:var(--color-text-inverse)}.pwa-install-banner{background:var(--color-surface);border:1px solid var(--color-brand-border);border-radius:var(--radius-xl);bottom:calc(18px + env(safe-area-inset-bottom));box-shadow:0 16px 40px var(--color-shadow-elevated);z-index:121;align-items:center;gap:12px;width:min(420px,100vw - 36px);max-width:calc(100vw - 28px);padding:12px;display:flex;position:fixed;right:18px}.pwa-install-banner>img{box-shadow:0 4px 12px var(--color-shadow);border-radius:11px;flex:none;width:44px;height:44px}.pwa-install-copy{flex:auto;gap:3px;min-width:0;display:grid}.pwa-install-copy strong{color:var(--color-text-heading);font-size:13px;line-height:1.25}.pwa-install-copy small{color:var(--color-text-muted);font-size:11px;line-height:1.45}.pwa-install-actions{flex:none;gap:6px;display:flex}.pwa-install-banner button{border-radius:var(--radius-md);white-space:nowrap;border:0;min-height:34px;padding:0 11px;font-size:12px;font-weight:650}.pwa-install-later{color:var(--color-text-muted);background:0 0}.pwa-install-now{background:var(--color-brand);color:var(--color-text-inverse)}.pwa-install-now:hover:not(:disabled){background:var(--color-brand-hover)}.pwa-install-now:disabled{cursor:wait;opacity:.6}@media (width<=640px){.pwa-install-banner{bottom:calc(12px + env(safe-area-inset-bottom));grid-template-columns:44px minmax(0,1fr);align-items:flex-start;width:auto;max-width:none;display:grid;left:12px;right:12px}.pwa-install-actions{grid-column:2;justify-content:flex-end}}.memory-dialog-backdrop{background:var(--color-overlay);z-index:1000;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.memory-dialog{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-modal-float);flex-direction:column;width:min(620px,100%);max-height:min(720px,100vh - 48px);display:flex;overflow:hidden}.memory-dialog-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;min-height:62px;padding:0 18px 0 22px;display:flex}.memory-dialog-header>div{align-items:center;gap:8px;display:flex}.memory-dialog-header h2{color:var(--color-text-emphasis);margin:0;font-size:16px;font-weight:700}.memory-dialog-header span{background:var(--color-surface-muted);color:var(--color-text-muted);border-radius:10px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 6px;font-size:11px;display:inline-flex}.memory-dialog button{color:var(--color-text-muted);cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;display:inline-flex}.memory-dialog-header>button,.memory-row-footer button{border-radius:var(--radius-sm);width:32px;height:32px;padding:0}.memory-dialog button:hover:not(:disabled){background:var(--color-surface-muted);color:var(--color-text-emphasis)}.memory-dialog button:disabled{cursor:default;opacity:.45}.memory-dialog-list{overscroll-behavior:contain;gap:0;min-height:160px;padding:4px 22px 16px;display:grid;overflow-y:auto}.memory-row{border-bottom:1px solid var(--color-border-subtle);padding:17px 0 16px}.memory-row:last-child{border-bottom:0}.memory-row-meta,.memory-row-footer,.memory-row-footer>div{align-items:center;display:flex}.memory-row-meta{gap:7px}.memory-row-meta time{color:var(--color-text-subtle);margin-left:auto;font-size:11px}.memory-type,.memory-status{border-radius:var(--radius-xs);padding:0 7px;font-size:11px;font-weight:650;line-height:22px}.memory-type{background:var(--color-background);color:var(--color-focus)}.memory-type.type-misconception,.memory-type.type-weakness{background:var(--color-surface-muted);color:var(--color-text-muted)}.memory-type.type-strength{background:var(--color-info-surface);color:var(--color-info-text)}.memory-status{background:var(--color-surface-muted);color:var(--color-text-muted);font-weight:500}.memory-status.status-active{background:var(--color-success-surface);color:var(--color-brand-text)}.memory-status.status-challenged{background:var(--color-code-text);color:var(--color-warning-text)}.memory-row-description{color:var(--color-text-emphasis);overflow-wrap:anywhere;margin:10px 0 8px;font-size:14px;line-height:1.65}.memory-row blockquote{border-left:2px solid var(--color-border-strong);color:var(--color-text-muted);margin:0 0 10px;padding-left:10px;font-size:12px;line-height:1.55}.memory-row textarea{background:var(--color-surface-subtle);border:1px solid var(--color-brand-border);border-radius:var(--radius-sm);color:var(--color-text-emphasis);font:inherit;resize:vertical;outline:none;width:100%;min-height:94px;margin:10px 0 8px;padding:10px 11px;font-size:14px;line-height:1.55}.memory-row textarea:focus{border-color:var(--color-focus);box-shadow:0 0 0 2px var(--color-focus-ring)}.memory-row-footer{color:var(--color-text-subtle);justify-content:space-between;min-height:32px;font-size:11px}.memory-row-footer>div{gap:2px}.memory-row-footer button.danger:hover:not(:disabled){background:var(--color-danger-surface);color:var(--color-danger-text)}.memory-dialog-state{color:var(--color-text-subtle);place-self:center;margin:64px 0;font-size:13px}.memory-dialog-state.error,.memory-dialog-error{color:var(--color-danger-text)}.memory-dialog-error{background:var(--color-danger-surface);border-top:1px solid var(--color-accent-surface-strong);margin:0;padding:10px 22px;font-size:12px}@media (width<=640px){.memory-dialog-backdrop{align-items:flex-end;padding:0}.memory-dialog{border-radius:var(--radius-md) var(--radius-md) 0 0;border-bottom:0;border-left:0;border-right:0;width:100%;max-height:calc(100vh - 28px)}.memory-dialog-list{padding-left:18px;padding-right:18px}}@media (width<=960px){.auth-page--split{padding:0}.auth-split-layout{width:100%;display:block}.auth-showcase{display:none}.auth-task-pane{min-height:100svh;padding:40px 24px}.auth-panel--split{min-height:0}.auth-panel--split .auth-brand{justify-content:center;margin-bottom:24px;display:flex}.auth-panel--split .auth-heading{text-align:center;margin-bottom:30px}}@media (width>=961px) and (height<=720px){.auth-showcase{padding-top:20px;padding-bottom:16px}.auth-character-stage{top:52%;transform:translate(-50%,-50%)scale(.84)}.auth-task-pane{padding-top:24px;padding-bottom:24px}}@media (width<=520px){.auth-page{background:var(--color-surface);align-items:flex-start;padding:24px 18px}.auth-page--split{padding:0}.auth-task-pane{align-items:flex-start;padding:32px 18px}.auth-panel{box-shadow:none;border:0;padding:8px 0}.auth-panel--split{padding:8px 0}.auth-panel--split .auth-brand{margin-bottom:24px}.auth-brand{margin-bottom:42px}}.course-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);flex:none;justify-content:space-between;align-items:center;gap:16px;min-height:57px;padding:0 24px;display:flex}.session-title{font-family:var(--font-display-cjk);letter-spacing:0;text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:17px;font-style:normal;font-weight:400;overflow:hidden}.session-title-block{flex:auto;min-width:0;max-width:100%}.empty-course-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);flex:none;justify-content:space-between;align-items:center;min-height:66px;padding:12px 24px;display:flex}.empty-course-header h1{color:var(--color-text);font-family:var(--font-display-cjk);margin:0;font-size:17px;font-style:normal;font-weight:400;line-height:1.5}.empty-course-header p{color:var(--color-text-subtle);margin:0;font-size:12px;font-weight:400;line-height:1.3}.course-actions{white-space:nowrap;flex-wrap:nowrap;align-items:center;gap:7px;display:flex}.progress-pill{color:var(--color-text-emphasis);font-size:12.5px;font-weight:600}.course-actions .course-header-button{border-radius:var(--radius-md);color:var(--color-text-secondary);border:0;width:32px;height:32px;padding:0}.course-actions .course-header-button:hover{background:var(--color-background);color:var(--color-code-background-strong)}.app-tooltip{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-tooltip-float);color:var(--color-text-secondary);pointer-events:none;white-space:nowrap;z-index:9999;padding:6px 12px;font-size:12px;font-weight:500;line-height:1.4;position:fixed}.app-tooltip--top{animation:app-tooltip-up var(--motion-duration-tooltip) var(--motion-ease-standard);transform:translate(-50%,calc(-100% - 8px))}.app-tooltip--bottom{animation:app-tooltip-down var(--motion-duration-tooltip) var(--motion-ease-standard);transform:translate(-50%,8px)}.app-tooltip--right{animation:app-tooltip-right var(--motion-duration-tooltip) var(--motion-ease-standard);transform:translate(8px,-50%)}@keyframes app-tooltip-up{0%{opacity:0;transform:translate(-50%,calc(-100% - 4px))}to{opacity:1;transform:translate(-50%,calc(-100% - 8px))}}@keyframes app-tooltip-down{0%{opacity:0;transform:translate(-50%,4px)}to{opacity:1;transform:translate(-50%,8px)}}@keyframes app-tooltip-right{0%{opacity:0;transform:translate(4px,-50%)}to{opacity:1;transform:translate(8px,-50%)}}.empty-classroom{max-width:var(--chat-content-max-width);flex-direction:column;flex:auto;align-items:center;width:100%;min-height:0;margin:0 auto;padding:24px 24px 8px;display:flex;overflow:hidden}.empty-experience{box-sizing:border-box;flex-direction:column;flex:auto;justify-content:center;align-items:center;gap:32px;width:100%;min-height:0;padding:32px 24px;display:flex;overflow:hidden}.empty-hero{text-align:center;flex-direction:column;align-items:center;gap:6px;display:flex}.empty-hero-logo{animation:empty-hero-mark-in .36s var(--motion-ease-expressive) both;color:var(--color-text);width:44px;height:44px;margin-bottom:8px}.empty-hero h2{animation:empty-hero-copy-in .38s var(--motion-ease-expressive) 50ms both;color:var(--color-text);font-family:var(--font-display-cjk);margin:0;font-size:24px;font-style:normal;font-weight:400;line-height:1.5}.empty-hero p{animation:empty-hero-copy-in .38s var(--motion-ease-expressive) 90ms both;color:var(--color-text-subtle);margin:0;font-size:14px;font-weight:400;line-height:1.5}.empty-topics{flex-direction:column;align-items:center;gap:16px;width:100%;max-width:520px;display:flex}.empty-topics>span{animation:empty-hero-copy-in .3s var(--motion-ease-expressive) .16s both;color:var(--color-text-subtle);letter-spacing:0;font-size:12px;font-weight:500;line-height:1.5}.empty-prompt-grid{flex-wrap:wrap;justify-content:center;gap:10px;width:100%;display:flex}.empty-prompt-grid button{animation:empty-prompt-in .28s var(--motion-ease-expressive) var(--empty-prompt-delay,.21s) both;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-pill);color:var(--color-text-secondary);white-space:nowrap;justify-content:center;align-items:center;gap:8px;min-height:37px;padding:10px 16px;font-size:13.5px;font-weight:450;line-height:1;display:inline-flex}.empty-prompt-grid button:nth-child(2){--empty-prompt-delay:.25s}.empty-prompt-grid button:nth-child(3){--empty-prompt-delay:.29s}.empty-prompt-grid button:nth-child(4){--empty-prompt-delay:.33s}.empty-prompt-grid button:nth-child(5){--empty-prompt-delay:.37s}.empty-prompt-grid button:nth-child(6){--empty-prompt-delay:.41s}.empty-prompt-grid button:hover{background:var(--color-background);border-color:var(--color-border-strong);box-shadow:0 2px 8px var(--color-shadow-subtle);color:var(--color-text);transform:translateY(-1px)}.empty-prompt-grid button:disabled{background:var(--color-surface);border-color:var(--color-border);box-shadow:none;color:var(--color-text-subtle);cursor:not-allowed;opacity:.55;transform:none}.empty-prompt-grid svg{color:var(--color-text-subtle);flex:none}@keyframes empty-hero-mark-in{0%{filter:blur(5px);opacity:.15;transform:translateY(8px)scale(.94)}to{filter:blur();opacity:1;transform:translateY(0)scale(1)}}@keyframes empty-hero-copy-in{0%{filter:blur(4px);opacity:0;transform:translateY(7px)}to{filter:blur();opacity:1;transform:translateY(0)}}@keyframes empty-prompt-in{0%{filter:blur(3px);opacity:0;translate:0 7px}to{filter:blur();opacity:1;translate:0}}.icon-button,.course-actions button,.lesson-tab,.survey-tab,.survey-option,.material-card button,.practice-header button,.journey-dock button,.composer button,.digest-sidebar button,.learning-info-sidebar button,.roadmap-sidebar button,.tutor-digest-sidebar button{color:inherit;background:0 0;border:0;justify-content:center;align-items:center;display:inline-flex}.icon-button{color:var(--color-text-subtle);border-radius:var(--radius-md);width:32px;height:32px}.icon-button:hover{color:var(--color-text-secondary)}.icon-button.active,.icon-button.accent{color:var(--color-accent-strong)}.pro-button{border-radius:10px;min-width:39px;height:23px;padding:4px 10px;font-family:Instrument Serif,Georgia,serif;font-size:13px;font-style:italic;border:1px solid var(--color-accent-translucent)!important;color:var(--color-text-secondary)!important}.lesson-tabs{background:var(--color-surface);border-bottom:1px solid var(--color-border);flex:none;align-items:stretch;gap:34px;height:54px;padding:0 24px;display:flex}.lesson-tab{color:var(--color-text-subtle);padding:0;font-size:16px;font-weight:650;position:relative}.lesson-tab.active{color:var(--color-code-background-strong)}.lesson-tab.active:after{background:var(--color-surface-inverse-soft);border-radius:var(--radius-pill);content:"";height:3px;position:absolute;bottom:-1px;left:0;right:0}.classroom-shell{flex-direction:column;flex:auto;min-width:0;max-width:none;min-height:0;margin:0;padding:24px 0 8px;display:flex;overflow:hidden}.chat-window{flex-direction:column;flex:auto;width:100%;min-width:0;max-width:none;min-height:0;margin:0;padding:0;display:flex;overflow:hidden auto}.chat-window-content{flex-direction:column;flex:1 0 auto;gap:16px;width:100%;min-width:0;min-height:100%;padding:0 24px 10px;display:flex}.user-message-row{max-width:var(--chat-content-max-width);flex-direction:column;align-items:flex-end;gap:8px;width:100%;margin-left:auto;margin-right:auto;display:flex}.user-message-row time,.tutor-followup time{color:var(--color-text-subtle);font-size:12px}.user-message-row>time{padding-right:4px}.user-message-cluster{justify-content:flex-end;align-items:flex-end;min-width:0;max-width:92%;display:flex}.user-message-content{flex-direction:column;align-items:flex-end;gap:0;min-width:0;max-width:620px;display:flex}.user-file-cards{flex-wrap:wrap;justify-content:flex-end;gap:8px;max-width:100%;margin-bottom:6px;display:flex}.user-message-bubble-group{justify-content:flex-end;align-items:center;gap:7px;min-width:0;max-width:100%;display:flex}.user-message-file-only-actions{justify-content:flex-end;width:100%;display:flex}.user-file-card{background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--shadow-surface-contact);color:var(--color-text-secondary);min-width:0;max-width:min(260px,100vw - 48px);min-height:58px;transition:border-color var(--motion-duration-action) var(--motion-ease-action), box-shadow var(--motion-duration-action) var(--motion-ease-action), transform var(--motion-duration-action) var(--motion-ease-action);border-radius:12px;align-items:center;gap:10px;padding:10px 14px;text-decoration:none;display:flex}.user-file-card:hover,.user-file-card:focus-visible{border-color:var(--color-border-strong);box-shadow:0 8px 22px var(--color-shadow-soft);outline:none;transform:translateY(-1px)}.user-file-card-icon,.user-file-card-link{flex:none}.user-file-card-format{background:var(--color-danger-surface);border-radius:var(--radius-md);color:var(--color-danger);letter-spacing:0;flex:none;justify-content:center;align-items:center;width:38px;height:38px;font-size:11px;font-weight:700;display:flex}.user-file-card-platform-icon{flex:0 0 36px;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.user-file-card-platform-icon--bilibili{color:#00a1d6}.user-file-card-platform-icon--youtube{color:#f03}.user-file-card-platform-icon--video{color:var(--color-info)}.user-file-card-copy{flex-direction:column;gap:2px;min-width:0;display:flex}.user-file-card-name{color:var(--color-code-background-strong);text-overflow:ellipsis;white-space:nowrap;max-width:170px;font-size:13px;font-weight:500;overflow:hidden}.user-file-card-meta{color:var(--color-text-subtle);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.user-message-actions{opacity:0;pointer-events:none;transition:opacity var(--motion-duration-action) var(--motion-ease-action), transform var(--motion-duration-action) var(--motion-ease-action);flex:none;align-items:center;gap:4px;display:flex;transform:translate(5px)}.user-message-cluster:hover .user-message-actions,.user-message-actions:focus-within{opacity:1;pointer-events:auto;transform:translate(0)}.user-message-actions button{color:var(--color-text-subtle);cursor:pointer;height:34px;transition:background var(--motion-duration-action) var(--motion-ease-action), color var(--motion-duration-action) var(--motion-ease-action);background:0 0;border:0;border-radius:9px;justify-content:center;align-items:center;width:34px;padding:0;display:inline-flex}.user-message-actions button:hover,.user-message-actions button:focus-visible{background:var(--color-surface-muted);color:var(--color-text-secondary);outline:none}.user-message-actions .user-message-delete:hover,.user-message-actions .user-message-delete:focus-visible{background:var(--color-danger-surface);color:var(--color-danger)}.user-message-actions button:disabled{cursor:wait;opacity:.65}.user-message-action-spinner{animation:.9s linear infinite deep-research-spin}.user-message-action-error{color:var(--color-danger-hover);font-size:12px;line-height:1.4}.user-bubble{background:var(--color-control-muted);color:var(--color-text-inverse);overflow-wrap:anywhere;border-radius:17px;min-width:0;max-width:620px;padding:10px 16px;font-size:15px;line-height:1.55}@media (hover:none){.user-message-actions{opacity:1;pointer-events:auto;transform:none}}.tutor-followup{background:var(--color-surface);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);box-shadow:0 8px 24px var(--color-shadow-soft);color:var(--color-text-heading);grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:16px 18px;display:grid}.tutor-followup svg{color:var(--color-accent-strong)}.tutor-followup p{margin:0;font-size:18px;line-height:1.55}.tutor-message{max-width:var(--chat-content-max-width);flex-direction:column;gap:10px;width:100%;min-width:0;margin-left:auto;margin-right:auto;display:flex}.thinking-block{border-left:2px solid var(--color-border);min-width:0;margin:6px 0;padding-left:10px}.thinking-block-header{color:var(--color-text-muted);cursor:pointer;-webkit-user-select:none;user-select:none;background:0 0;border:0;align-items:center;gap:6px;margin:0;padding:3px 0;font-size:12px;display:inline-flex}.thinking-block-header:hover{color:var(--color-text)}.thinking-block-header:focus-visible{border-radius:var(--radius-xs);outline:2px solid var(--color-focus);outline-offset:3px}.thinking-icon{opacity:.55;flex-shrink:0}.thinking-label{-webkit-user-select:none;user-select:none}.thinking-chevron{opacity:.5;flex-shrink:0;transition:transform .18s ease-out}.thinking-chevron--expanded{transform:rotate(90deg)}.thinking-content{animation:thinking-content-reveal .18s var(--motion-ease-expressive) both;color:var(--color-text-muted);overflow-wrap:anywhere;white-space:pre-wrap;padding:8px 12px 4px 0;font-size:14px;line-height:1.7}@keyframes thinking-content-reveal{0%{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:translateY(0)}}.messages-loading{max-width:var(--chat-content-max-width);flex-direction:column;gap:16px;width:100%;margin:0 auto;padding:24px 0;animation:.3s ease-out messages-loading-fade-in;display:flex}.messages-loading__row{flex-direction:column;gap:8px;display:flex}.messages-loading__row--user{align-items:flex-end}.messages-loading__row--assistant{align-items:flex-start}.messages-loading__bubble{background:var(--color-surface-pressed);border-radius:var(--radius-lg);animation:1.5s ease-in-out infinite messages-loading-pulse}.messages-loading__bubble--user{width:200px;height:40px}.messages-loading__bubble--assistant{height:16px}.messages-loading__bubble--long{width:85%}.messages-loading__bubble--medium{width:60%}.messages-loading__bubble--short{width:35%}@keyframes messages-loading-fade-in{0%{opacity:0}to{opacity:1}}@keyframes messages-loading-pulse{0%,to{opacity:.4}50%{opacity:.8}}.assistant-message-actions{color:var(--color-text-subtle);align-items:center;gap:10px;min-height:20px;display:flex}.assistant-message-actions button{color:var(--color-text-subtle);background:0 0;border:0;justify-content:center;align-items:center;width:18px;height:20px;padding:0;display:inline-flex}.assistant-message-actions button:hover{color:var(--color-text-secondary)}.assistant-message-actions>span{color:var(--color-text-subtle);align-items:center;gap:3px;font-size:12px;display:inline-flex}.tutor-typing-indicator{color:var(--color-text-subtle);max-width:var(--chat-content-max-width);flex-direction:column;align-items:flex-start;gap:6px;width:100%;margin-left:auto;margin-right:auto;padding:2px 0 0;display:flex}.tutor-typing-logo{color:var(--color-text);width:28px;height:28px;display:block;overflow:visible}.sitor-loading-breathing .sitor-loading-body{animation:sitor-brain-breathe var(--motion-duration-learning-pulse) var(--motion-ease-pulse) infinite}.sitor-ray-breathe{animation:sitor-ray-breathe var(--motion-duration-learning-pulse) var(--motion-ease-pulse) infinite}.tutor-typing-line{align-items:center;gap:8px;min-height:16px;display:flex}.tutor-typing-label{color:var(--color-text-subtle);letter-spacing:.01em;font-size:12.5px;font-weight:400;line-height:1}.typing-dots{align-items:center;gap:3px;display:inline-flex}.typing-dots i{animation:typing-dot-pulse var(--motion-duration-typing-pulse) var(--motion-ease-pulse) infinite;background:var(--color-accent);border-radius:var(--radius-pill);width:4px;height:4px;display:block}.typing-dots i:nth-child(2){animation-delay:.16s}.typing-dots i:nth-child(3){animation-delay:.32s}@keyframes typing-dot-pulse{0%,80%,to{opacity:.25;transform:translateY(0)scale(1)}30%{opacity:1;transform:translateY(-3px)scale(1.15)}}@keyframes sitor-brain-breathe{0%,to{opacity:.65}50%{opacity:1}}@keyframes sitor-ray-breathe{0%,to{opacity:0}50%{opacity:1}}.tutor-message p{color:var(--color-text);overflow-wrap:anywhere;margin:0;font-size:15px;font-weight:400;line-height:1.7}.tutor-message .lead{font-size:15px}.assistant-time{color:var(--color-text-subtle);margin:0;font-size:12px;font-weight:500}.message-text{flex-direction:column;gap:8px;min-width:0;display:flex}.message-text p{white-space:pre-wrap}.message-text h2,.message-text h3,.message-text h4{color:var(--color-text);margin:8px 0 0;font-weight:650;line-height:1.35}.message-text h2{font-size:18px}.message-text h3{font-size:16px}.message-text h4{font-size:15px}.message-text ul,.message-text ol{flex-direction:column;gap:6px;margin:0;padding-left:20px;display:flex}.message-text ul{list-style:outside}.message-text ol{list-style:decimal}.message-text li{color:var(--color-text);font-size:15px;font-weight:400;line-height:1.7}.message-text strong{color:var(--color-text-strong);font-weight:650}.message-text code{background:var(--color-surface-strong);border-radius:var(--radius-xs);color:var(--color-text);border:0;padding:2px 6px;font-family:SF Mono,JetBrains Mono,Fira Code,ui-monospace,monospace;font-size:.9em}.markdown-content{flex-direction:column;gap:8px;min-width:0;display:flex}.markdown-content.compact{gap:6px}.markdown-content a{color:var(--color-accent-text);text-underline-offset:3px;font-weight:900;text-decoration:underline;text-decoration-thickness:2px}.markdown-content blockquote{border-left:3px solid var(--color-border-strong);color:var(--color-text-secondary);margin:2px 0;padding:3px 0 3px 14px}.markdown-content blockquote p{color:inherit}.markdown-content pre{background:var(--color-code-background);border-radius:var(--radius-md);color:var(--color-accent-surface);white-space:pre;margin:2px 0;padding:14px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:13px;font-weight:500;line-height:1.6;overflow-x:auto}.markdown-table-scroll{border:1px solid var(--color-border);border-radius:var(--radius-md);width:100%;max-width:100%;margin:16px 0;overflow-x:hidden}.markdown-table-scroll table{border-collapse:collapse;table-layout:fixed;width:100%;min-width:0}.markdown-table-scroll th,.markdown-table-scroll td{border-bottom:1px solid var(--color-border);border-right:1px solid var(--color-border);color:var(--color-text);overflow-wrap:anywhere;text-align:left;vertical-align:top;word-break:break-word;white-space:normal;line-height:1.5}.markdown-table-scroll th{padding:10px 16px;font-size:13px;font-weight:600}.markdown-table-scroll td{padding:8px 16px;font-size:14px;font-weight:400}.markdown-table-scroll th:last-child,.markdown-table-scroll td:last-child{border-right:0}.markdown-table-scroll th{background:var(--color-surface-strong);color:var(--color-text-secondary)}.markdown-table-scroll tr:last-child td{border-bottom:0}.material-digest-panel{flex-direction:column;gap:0;min-width:0;display:flex}.material-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-surface-contact);grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;min-width:0;min-height:66px;padding:16px 20px 12px;display:grid}.material-digest-panel.streaming-node .material-card{border-radius:var(--radius-xl) var(--radius-xl) 0 0}.material-card>div{min-width:0}.material-icon{background:var(--color-accent-surface);color:var(--color-accent);border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.material-card span{color:var(--color-text-subtle);margin:0 0 2px;font-size:11px;font-weight:500;line-height:1.2;display:block}.material-card strong{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;font-size:15px;font-weight:600;line-height:1.3;display:block;overflow:hidden}.material-card small{color:var(--color-text-subtle);overflow-wrap:anywhere;margin-top:4px;font-size:17px;font-weight:800;line-height:1.35;display:block}.material-card button{color:var(--color-text-subtle);align-items:center;gap:5px;min-width:max-content;font-size:12px;font-weight:500;line-height:1.6}.material-digest-status{background:var(--color-surface);border:1px solid var(--color-border);border-radius:0 0 var(--radius-xl) var(--radius-xl);box-shadow:var(--shadow-surface-contact);color:var(--color-text-muted);border-top:0;align-items:center;min-height:42px;padding:0 20px;display:flex}.material-digest-status span{font-size:13px;font-weight:500;line-height:1.4}.material-digest-content{background:var(--color-surface);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);box-shadow:0 8px 22px var(--color-shadow-subtle);color:var(--color-text-heading);flex-direction:column;gap:10px;min-width:0;padding:18px 20px;display:flex}.material-digest-content h2{color:var(--color-text);margin:8px 0 2px;font-size:18px;font-weight:650;line-height:1.35}.material-digest-content p,.material-digest-content li{color:var(--color-text);font-size:15px;font-weight:400;line-height:1.7}.material-digest-content ul{flex-direction:column;gap:6px;margin:0;padding-left:20px;list-style:outside;display:flex}.material-digest-content code{background:var(--color-surface-strong);border-radius:var(--radius-xs);color:var(--color-text);white-space:nowrap;border:0;padding:2px 6px;font-family:SF Mono,JetBrains Mono,Fira Code,ui-monospace,monospace;font-size:.9em;font-weight:400}.survey-panel{background:var(--color-background);border-left:3px solid var(--color-accent);border-radius:var(--radius-lg);box-sizing:border-box;max-width:var(--chat-content-max-width);flex-direction:column;gap:0;width:100%;min-width:0;margin:12px 0;padding:12px 16px;display:flex;position:relative;overflow:hidden}.node-kicker{color:var(--color-accent-strong);align-items:center;gap:8px;font-size:15px;font-weight:900;display:inline-flex}.render-ui-panel{background:var(--color-surface);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);box-shadow:0 6px 18px var(--color-shadow-soft)}.roadmap-card{background:var(--color-background);border:0;border-left:3px solid var(--color-border-strong);border-radius:var(--radius-lg);box-sizing:border-box;color:var(--color-text);max-width:var(--chat-content-max-width);width:100%;margin:12px 0;padding:16px}.roadmap-header{color:var(--color-text);font-family:var(--font-display-cjk);margin-bottom:12px;font-size:17px;font-style:normal;font-weight:400;line-height:1.35}.roadmap-header h2{color:inherit;font:inherit;letter-spacing:0;margin:0}.roadmap-nodes{flex-direction:column;gap:0;display:flex}.roadmap-node-row{align-items:flex-start;gap:12px;display:flex}.roadmap-node-track{flex-direction:column;flex-shrink:0;align-items:center;width:24px;display:flex}.roadmap-node-dot{border:2px solid var(--color-border);border-radius:var(--radius-pill);flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:10px;transition:all .2s ease-out;display:flex}.roadmap-node-dot--active{background:var(--color-accent-surface);border-color:var(--color-accent)}.roadmap-node-dot--mastered{background:var(--color-success-surface);border-color:var(--color-success-border);color:var(--color-success-text)}.roadmap-node-dot--locked{opacity:.5;border-style:dashed}.roadmap-node-dot--skipped{background:var(--color-surface-disabled);border-color:var(--color-border-strong);color:var(--color-text-secondary)}.roadmap-node-line{flex-shrink:0;width:2px;height:20px}.roadmap-node-line--active{background-color:var(--color-accent);background-image:repeating-linear-gradient(0deg, var(--color-accent), var(--color-accent) 4px, transparent 4px, transparent 8px)}.roadmap-node-line--default{background-color:var(--color-surface-pressed);background-image:repeating-linear-gradient(0deg, var(--color-surface-pressed), var(--color-surface-pressed) 4px, transparent 4px, transparent 8px)}.roadmap-node-line--skipped{background:var(--color-success)}.roadmap-node-content{flex:1;min-width:0;padding:0 0 12px}.roadmap-node-title{color:var(--color-text);font-size:14px;font-weight:500;line-height:1.4}.roadmap-node-title--locked{color:var(--color-text-subtle)}.roadmap-node-status{background:var(--color-surface-pressed);border-radius:var(--radius-pill);color:var(--color-text-subtle);margin-top:3px;padding:0 9px;font-size:11px;line-height:18px;display:inline-flex}.roadmap-node-desc{color:var(--color-text-secondary);margin-top:2px;font-size:13px;line-height:1.4}.roadmap-prerequisites{color:var(--color-text-subtle);margin-top:2px;font-size:11px;font-weight:500;line-height:1.4}.render-heading{color:var(--color-text-secondary);margin:8px 0 0;font-size:15px;font-weight:650;line-height:1.35}.render-heading.level-1{color:var(--color-text-heading);font-size:18px}.render-heading.level-3{font-size:14px}.render-callout p{color:var(--color-text-secondary);margin:0;font-size:13.5px;font-weight:400;line-height:1.6}.mastery-card{background:var(--color-background);border:0;border-left:3px solid var(--color-success-hover);border-radius:var(--radius-md);box-shadow:none;color:var(--color-text-strong);max-width:var(--chat-content-max-width);gap:12px;width:100%;margin:8px auto;padding:20px 24px;display:grid;position:relative}.mastery-card.failed{border-left-color:var(--color-danger-muted)}.mastery-card-header{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:12px;display:grid}.mastery-card h2{color:var(--color-text-strong);font-family:var(--font-display-cjk);letter-spacing:0;margin:0;font-size:18px;font-style:normal;font-weight:400;line-height:1.35}.mastery-status-pill{border-radius:var(--radius-md);white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;min-height:24px;padding:0 9px;font-size:12px;font-weight:650;line-height:1;display:inline-flex}.mastery-status-pill--pending{background:var(--color-info-surface);border-color:var(--color-info-border);color:var(--color-info-text)}.mastery-status-pill--passed{background:var(--color-success-surface);border-color:var(--color-success-border);color:var(--color-success-text)}.mastery-status-pill--failed{background:var(--color-danger-surface);border-color:var(--color-danger-border);color:var(--color-danger-text)}.mastery-card p{color:var(--color-text);margin:0;font-size:15px;font-weight:400;line-height:1.65}.mastery-progress{color:var(--color-text-muted);flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;font-weight:500;display:flex}.mastery-progress span{background:var(--color-surface-strong);border-radius:var(--radius-pill);padding:6px 10px}.mastery-recommendations{color:var(--color-text-secondary);gap:6px;margin:0;padding-left:20px;font-size:14px;font-weight:400;line-height:1.55;display:grid}.mastery-next{border-top:1px solid var(--color-border-strong);color:var(--color-text-subtle);align-items:center;gap:8px;padding-top:12px;font-size:14px;font-weight:500;display:flex}.mastery-next span{background:var(--color-accent);border-radius:var(--radius-pill);width:10px;height:10px}.mastery-next strong{color:var(--color-code-background-strong);font-weight:900}.render-ui-panel{box-shadow:none;max-width:var(--chat-content-max-width);background:0 0;border:0;border-radius:0;gap:14px;width:100%;margin:2px auto 0;padding:0;display:grid}.render-chart-panel{background:var(--color-surface);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);box-sizing:border-box;max-width:var(--chat-content-max-width);width:100%;min-width:0;margin:2px auto 0;padding:14px 14px 10px;overflow:hidden}.render-chart-canvas{width:100%;min-width:0;height:340px}.render-chart-empty{color:var(--color-text-muted);text-align:center;padding:28px 16px;font-size:14px}.render-chart-skeleton{height:366px;position:relative}.render-chart-skeleton-grid{background:repeating-linear-gradient(to bottom, transparent 0, transparent 55px, var(--color-surface-strong) 56px, transparent 57px);position:absolute;inset:18px 16px 34px 44px}.render-chart-skeleton-bars{grid-template-columns:repeat(5,1fr);align-items:end;gap:18px;display:grid;position:absolute;inset:48px 28px 35px 58px}.render-chart-skeleton-bars span{background:var(--color-surface-strong);border-radius:var(--radius-xs) var(--radius-xs) 0 0;animation:1.45s ease-in-out infinite messages-loading-pulse;display:block}.render-chart-skeleton-bars span:first-child{height:34%}.render-chart-skeleton-bars span:nth-child(2){height:58%}.render-chart-skeleton-bars span:nth-child(3){height:43%}.render-chart-skeleton-bars span:nth-child(4){height:76%}.render-chart-skeleton-bars span:nth-child(5){height:64%}.render-text{color:var(--color-text);gap:6px;font-size:15px;font-weight:400;line-height:1.7;display:grid}.render-text p,.render-tab-panel p,.render-accordion p{margin:0}.render-text.secondary{color:var(--color-text-muted)}.render-text.caption,.render-caption{color:var(--color-text-muted);margin:0;font-size:13px;font-weight:800;line-height:1.5}.render-table-block{gap:12px;display:grid}.render-table-title{color:var(--color-text-heading);text-align:center;font-size:16px;font-weight:650;line-height:1.35}.render-table-scroll{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow-x:hidden}.render-table-scroll table{border-collapse:collapse;table-layout:fixed;width:100%;min-width:0}.render-table-scroll th,.render-table-scroll td{border-bottom:1px solid var(--color-border);border-right:1px solid var(--color-border);color:var(--color-text);overflow-wrap:anywhere;text-align:left;vertical-align:top;word-break:break-word;line-height:1.5}.render-table-scroll th{background:var(--color-surface-strong);color:var(--color-text-secondary);padding:10px 16px;font-size:13px;font-weight:600}.render-table-scroll td{padding:8px 16px;font-size:14px;font-weight:400}.render-table-scroll th:last-child,.render-table-scroll td:last-child{border-right:0}.render-table-scroll tr:last-child td{border-bottom:0}.render-callout{background:var(--color-info-surface);border:0;border-left:3px solid var(--color-info);border-radius:var(--radius-md);color:var(--color-info);align-items:flex-start;gap:12px;padding:12px 16px;display:flex}.render-callout__icon{color:var(--color-info);flex:none;padding-top:1px;line-height:0;display:inline-flex}.render-callout__body{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.render-callout__title{color:var(--color-text);margin:0 0 2px;font-size:13.5px;font-weight:600;line-height:1.45}.render-callout__content{color:var(--color-text-secondary);font-size:13.5px;line-height:1.6}.render-callout__content .markdown-content{gap:4px}.render-callout__content p{color:inherit}.render-callout.tip{background:var(--color-accent-surface);border-left-color:var(--color-accent-strong);color:var(--color-accent-strong)}.render-callout.warning{background:var(--color-warning-surface);border-left-color:var(--color-warning);color:var(--color-warning-text)}.render-callout.success{background:var(--color-success-surface);border-left-color:var(--color-success);color:var(--color-success-text)}.render-callout.error{background:var(--color-danger-surface);border-left-color:var(--color-danger);color:var(--color-danger-text)}.render-callout.tip .render-callout__icon{color:var(--color-accent-strong)}.render-callout.warning .render-callout__icon{color:var(--color-warning)}.render-callout.success .render-callout__icon{color:var(--color-success)}.render-callout.error .render-callout__icon{color:var(--color-danger)}.render-list{color:var(--color-text-secondary);gap:8px;margin:0;padding-left:22px;font-size:16px;font-weight:750;line-height:1.55;display:grid}.render-list.icon{padding-left:0;list-style:none}.render-list.icon li{grid-template-columns:auto 1fr;align-items:start;gap:10px;display:grid}.render-list.icon li:before{color:var(--color-accent-strong);content:"•";font-size:22px;line-height:1}.render-code-block{background:var(--color-code-background);border-radius:var(--radius-md);color:var(--color-code-text);margin:0;overflow:hidden}.render-code-block figcaption{background:var(--color-code-background-strong);justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.render-code-block figcaption span{font-size:14px;font-weight:900}.render-code-block figcaption code{background:var(--color-code-background-strong);border-radius:var(--radius-pill);color:var(--color-code-accent);padding:4px 8px;font-size:12px;font-weight:900}.render-code-block pre{margin:0;padding:16px;overflow-x:auto}.render-code-block pre code{white-space:pre;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace;font-size:14px;line-height:1.55}.render-mermaid-block{background:var(--color-surface-subtle);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);margin:0;overflow:hidden}.render-mermaid-block figcaption{background:var(--color-surface-muted);border-bottom:1px solid var(--color-border-subtle);justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.render-mermaid-block figcaption span{color:var(--color-text-heading);font-size:14px;font-weight:900}.render-mermaid-block figcaption code{background:var(--color-accent-surface);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-pill);color:var(--color-accent-text);padding:4px 8px;font-size:12px;font-weight:900}.render-mermaid-canvas{background:var(--color-surface);padding:18px;overflow-x:auto}.render-mermaid-svg{min-width:min(100%,320px)}.render-mermaid-svg svg{max-width:100%;height:auto;margin:0 auto;display:block}.render-mermaid-loading,.render-mermaid-fallback{gap:12px;display:grid}.render-mermaid-fallback p{color:var(--color-danger-text);margin:0;font-size:13px;font-weight:800}.render-mermaid-fallback pre{background:var(--color-code-background);border-radius:var(--radius-sm);color:var(--color-code-text);margin:0;padding:14px;overflow-x:auto}.render-mermaid-fallback code{white-space:pre;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace;font-size:13px;line-height:1.55}.render-divider{border:0;border-top:1px solid var(--color-accent-surface-strong);width:100%;margin:2px 0}.render-steps{counter-reset:render-step;gap:12px;margin:0;padding:0;list-style:none;display:grid}.render-steps li{background:var(--color-surface-subtle);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);grid-template-columns:auto 1fr;align-items:start;gap:12px;padding:14px;display:grid}.render-steps span{background:var(--color-warning-surface);border:1px solid var(--color-accent-border);border-radius:var(--radius-pill);color:var(--color-accent-strong);justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:900;display:flex}.render-steps strong{color:var(--color-code-background-strong);font-size:16px;font-weight:900}.render-steps p{color:var(--color-text-secondary);margin:4px 0 0;font-size:15px;font-weight:700;line-height:1.5}.render-accordion{gap:10px;display:grid}.render-accordion details{background:var(--color-surface-subtle);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);padding:12px 14px}.render-accordion summary{color:var(--color-text-heading);cursor:pointer;font-size:16px;font-weight:900}.render-accordion div{color:var(--color-text-secondary);gap:8px;padding-top:10px;font-size:15px;font-weight:700;line-height:1.55;display:grid}.render-stats{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;display:grid}.render-stat{background:var(--color-surface-subtle);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);gap:4px;padding:14px;display:grid}.render-stat span{color:var(--color-text-muted);font-size:13px;font-weight:900}.render-stat strong{color:var(--color-text-heading);font-size:22px;font-weight:950}.render-stat p{color:var(--color-text-muted);margin:0;font-size:13px;font-weight:750;line-height:1.45}.render-quote{background:var(--color-background);border-left:3px solid var(--color-border-emphasis);color:var(--color-text-emphasis);gap:10px;margin:0;padding:14px 16px;display:grid}.render-quote p{margin:0;font-family:Georgia,Times New Roman,serif;font-size:16px;line-height:1.65}.render-quote footer{color:var(--color-text-muted);font-size:13px;font-weight:750}.render-definition{border-left:3px solid var(--color-info);gap:6px;margin:0;padding:10px 0 10px 14px;display:grid}.render-definition dt{color:var(--color-info-text);font-size:16px;font-weight:900}.render-definition dd{color:var(--color-text-secondary);gap:6px;margin:0;font-size:15px;line-height:1.6;display:grid}.render-definition dd p{margin:0}.render-image{gap:8px;min-width:0;margin:0;display:grid}.render-image img{background:var(--color-background);border:1px solid var(--color-border);border-radius:var(--radius-md);object-fit:contain;width:100%;max-height:480px;display:block}.render-image figcaption{color:var(--color-text-muted);text-align:center;font-size:13px;line-height:1.5}.render-badges{flex-wrap:wrap;gap:8px;display:flex}.render-badge{background:var(--color-surface-muted);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-pill);color:var(--color-text-secondary);padding:6px 10px;font-size:13px;font-weight:900}.render-badge.success{background:var(--color-success-surface);border-color:var(--color-success-border);color:var(--color-success-text)}.render-badge.warning{background:var(--color-warning-surface);border-color:var(--color-warning-border);color:var(--color-warning-text)}.render-badge.error{background:var(--color-danger-surface);border-color:var(--color-danger-border);color:var(--color-danger-text)}.render-badge.accent{background:var(--color-info-surface);border-color:var(--color-info-border);color:var(--color-info-text)}.render-row{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;display:grid}.render-tabs{border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);overflow:hidden}.render-tab-list{background:var(--color-background);gap:6px;padding:8px;display:flex;overflow-x:auto}.render-tab-list button{border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;white-space:nowrap;background:0 0;border:0;padding:8px 10px;font-size:14px;font-weight:900}.render-tab-list button.active{background:var(--color-surface);color:var(--color-text-heading);box-shadow:0 1px 3px var(--color-shadow)}.render-tab-panel{color:var(--color-text-secondary);gap:8px;padding:14px;font-size:15px;font-weight:700;line-height:1.55;display:grid}.unknown-tool-node{background:var(--color-surface-subtle);border:1px dashed var(--color-border-emphasis);border-radius:var(--radius-md);color:var(--color-text-muted);justify-self:start;align-items:center;gap:8px;padding:8px 12px;display:inline-flex}.deep-research-card{background:var(--color-surface-subtle);border:1px solid var(--color-border-translucent);border-radius:var(--radius-md);color:var(--color-text-secondary);max-width:var(--chat-content-max-width);width:100%;overflow:hidden}.deep-research-header{color:var(--color-text-muted);text-align:left;background:0 0;border:0;grid-template-columns:18px minmax(0,1fr) 8px 16px;align-items:center;gap:10px;width:100%;padding:12px 14px;font-size:13px;font-weight:650;display:grid}.deep-research-card.streaming-node:after{content:none}.deep-research-stream-indicator{border-radius:var(--radius-pill);width:8px;height:8px}.deep-research-stream-indicator.active{animation:streamPulse var(--motion-duration-learning-pulse) var(--motion-ease-pulse) infinite;background:var(--color-accent-strong)}.deep-research-header:hover{background:var(--color-background);color:var(--color-text-secondary)}.deep-research-card--error{border-color:var(--color-danger-border)}.deep-research-card--error .deep-research-header{color:var(--color-danger-text)}.deep-research-card--error .deep-research-header:hover{background:var(--color-danger-surface);color:var(--color-danger-text)}.deep-research-body{border-top:1px solid var(--color-border-subtle);padding:8px 14px 13px}.deep-research-steps{gap:1px;display:grid}.deep-research-step-trigger{color:var(--color-text-subtle);text-align:left;background:0 0;border:0;grid-template-columns:14px minmax(0,1fr) auto auto;align-items:center;gap:8px;width:100%;padding:5px 0;font-size:12px;line-height:18px;display:grid}.deep-research-step-trigger:not(:disabled):hover{color:var(--color-text-muted)}.deep-research-step-trigger:disabled{cursor:default}.deep-research-step-trigger span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.deep-research-step-trigger em{color:var(--color-danger-text);font-size:11px;font-style:normal}.deep-research-step-trigger small{color:var(--color-text-subtle);white-space:nowrap;font-size:11px}.deep-research-step-spinner{color:var(--color-text-muted);animation:.9s linear infinite deep-research-spin}@keyframes deep-research-spin{to{transform:rotate(360deg)}}.deep-research-search-results{border-left:1px solid var(--color-border);gap:10px;margin:2px 0 8px 6px;padding:4px 0 4px 16px;display:grid}.deep-research-search-results a{color:inherit;gap:2px;text-decoration:none;display:grid}.deep-research-search-results strong,.deep-research-search-results p{margin:0;font-size:12px;line-height:1.55}.deep-research-search-results strong{color:var(--color-text-secondary)}.deep-research-search-results span,.deep-research-search-results p{color:var(--color-text-subtle)}.deep-research-loading{color:var(--color-text-subtle);padding:8px 0;font-size:12px}.deep-research-error{color:var(--color-danger-text);grid-template-columns:16px minmax(0,1fr);align-items:start;gap:9px;padding:9px 0 5px;display:grid}.deep-research-error>svg{margin-top:1px}.deep-research-error strong,.deep-research-error p{overflow-wrap:anywhere;margin:0;font-size:12px;line-height:1.55;display:block}.deep-research-error p{color:var(--color-text-muted);margin-top:2px}.deep-research-report{border-top:1px solid var(--color-border-subtle);margin-top:8px;padding-top:10px}.deep-research-tabs{gap:4px;padding-bottom:8px;display:flex;overflow-x:auto}.deep-research-tabs button{color:var(--color-text-subtle);white-space:nowrap;background:0 0;border:0;border-bottom:2px solid #0000;flex:none;align-items:center;gap:5px;padding:6px 7px;font-size:11px;display:inline-flex}.deep-research-tabs button:hover,.deep-research-tabs button.active{color:var(--color-text-secondary)}.deep-research-tabs button.active{border-bottom-color:var(--color-text-muted)}.deep-research-tab-panel{max-height:440px;padding:2px 2px 2px 0;overflow:auto}.deep-research-entry{border-bottom:1px solid var(--color-border-subtle);padding:9px 2px}.deep-research-entry:last-child{border-bottom:0}.deep-research-entry>div,.deep-research-entry>strong{color:var(--color-text-secondary);align-items:center;gap:7px;font-size:12px;display:flex}.deep-research-entry p,.deep-research-entry small{color:var(--color-text-muted);margin:4px 0 0;font-size:12px;line-height:1.6;display:block}.research-importance{background:var(--color-surface-strong);border-radius:var(--radius-xs);color:var(--color-text-muted);padding:0 5px;font-size:10px;font-weight:650;line-height:16px}.research-importance.critical{background:var(--color-warning-surface);color:var(--color-warning-text)}.deep-research-entry.misconception strong{color:var(--color-danger-text)}.deep-research-source-refs{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--color-text-subtle)!important}.deep-research-numbered{color:var(--color-text-muted);gap:9px;margin:4px 0;padding-left:22px;font-size:12px;line-height:1.65;display:grid}.deep-research-source{border-bottom:1px solid var(--color-border-subtle);color:inherit;grid-template-columns:24px minmax(0,1fr) 14px;align-items:start;gap:9px;padding:9px 2px;text-decoration:none;display:grid}.deep-research-source>span{background:var(--color-surface-strong);border-radius:var(--radius-xs);color:var(--color-text-muted);text-align:center;padding:3px 4px;font-size:10px}.deep-research-source strong,.deep-research-source p,.deep-research-source small{margin:0;font-size:12px;line-height:1.5;display:block}.deep-research-source strong{color:var(--color-text-secondary)}.deep-research-source p,.deep-research-source small{color:var(--color-text-subtle);margin-top:2px}@media (width<=720px){.deep-research-card{width:100%}.deep-research-body{padding-inline:11px}.deep-research-tab-panel{max-height:360px}}.sr-only{clip:rect(0, 0, 0, 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.landing-page{background:var(--color-background);color:var(--color-text);min-height:100vh}.landing-header{border-bottom:1px solid var(--color-border-subtle);justify-content:space-between;align-items:center;max-width:1240px;height:72px;margin:0 auto;padding:0 24px;display:flex}.landing-brand{color:var(--color-text-heading);align-items:center;gap:10px;text-decoration:none;display:inline-flex}.landing-brand-mark{color:var(--color-brand)}.landing-brand-name{font-family:var(--font-display-latin);font-size:22px;font-style:italic;font-weight:400;line-height:1}.landing-header-cta,.landing-final-cta{background:var(--color-brand);border-radius:var(--radius-pill);color:var(--color-text-inverse);min-height:41px;transition:background var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard);justify-content:center;align-items:center;gap:8px;padding:0 17px;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.landing-header-cta:hover,.landing-final-cta:hover{background:var(--color-brand-hover);transform:translateY(-1px)}.landing-header-cta:active,.landing-final-cta:active{transform:translateY(0)}.landing-header-cta:focus-visible,.landing-final-cta:focus-visible,.landing-brand:focus-visible,.landing-journey-cue:focus-visible,.landing-send-button:focus-visible,.landing-source-button:focus-visible,.landing-material-tag-remove:focus-visible,.landing-video-source button:focus-visible{box-shadow:0 0 0 3px var(--color-focus-ring);outline:1px solid var(--color-focus);outline-offset:2px}.landing-hero{grid-template-rows:minmax(0,1fr) auto;min-height:calc(88svh - 64px);padding:48px 24px 64px;display:grid}.landing-hero-main{text-align:center;flex-direction:column;align-self:center;align-items:center;max-width:680px;margin:0 auto;padding-bottom:0;display:flex}html.landing-motion-booting .landing-page .landing-hero-item{clip-path:inset(0 0 14%);filter:blur(5px);opacity:0;transform:translateY(18px)}.landing-hero-emblem{color:var(--color-brand);margin-bottom:32px}.landing-hero-title{color:var(--color-text-heading);font-family:var(--font-display-cjk);letter-spacing:0;text-wrap:balance;white-space:nowrap;max-width:680px;margin:0;font-size:44px;font-weight:400;line-height:1.15}.landing-word-window{color:var(--color-accent-strong);vertical-align:-.08em;place-items:center;width:3em;margin:0 5px;display:inline-grid}.landing-rotating-word{transition:filter .35s var(--motion-ease-expressive), opacity .35s var(--motion-ease-expressive);grid-area:1/1;display:inline-block}.landing-rotating-word--cycled:not(.landing-rotating-word--exiting){animation:landing-word-in .4s var(--motion-ease-expressive) both}.landing-rotating-word--exiting{filter:blur(8px);opacity:0;animation:none}.landing-hero-copy{color:var(--color-text-secondary);max-width:680px;margin:24px 0 0;font-size:18px;line-height:1.7}.landing-composer-area{width:min(100%,520px);margin-top:40px}.landing-composer{background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-xl);min-height:56px;transition:border-color var(--motion-duration-standard) var(--motion-ease-standard), box-shadow var(--motion-duration-standard) var(--motion-ease-standard);align-items:center;width:100%;padding:6px 6px 6px 20px;display:flex}.landing-composer:focus-within{border-color:var(--color-brand-border);box-shadow:0 5px 20px var(--color-shadow-soft)}.landing-composer-prefix{color:var(--color-text-muted);white-space:nowrap;flex:none;align-self:center;margin-right:10px;padding:5px 0;font-size:15px;line-height:1.5}.landing-composer-input-wrap{flex:auto;align-items:center;min-width:0;display:grid;position:relative}.landing-composer textarea,.landing-composer-prompt{color:var(--color-text-heading);letter-spacing:0;text-align:left;grid-area:1/1;font-size:15px;font-weight:400;line-height:1.5}.landing-composer textarea{resize:none;background:0 0;border:0;outline:0;width:100%;height:34px;min-height:34px;max-height:76px;padding:5px 0;overflow:hidden}.landing-composer-prompt{color:var(--color-text-muted);pointer-events:none;text-overflow:ellipsis;transition:filter .35s var(--motion-ease-expressive), opacity .35s var(--motion-ease-expressive), transform .35s var(--motion-ease-expressive);white-space:nowrap;padding:5px 0;overflow:hidden}.landing-composer-prompt--cycled:not(.landing-composer-prompt--exiting){animation:landing-prompt-in .38s var(--motion-ease-expressive) both}.landing-composer-prompt--exiting{filter:blur(3px);opacity:0;transform:translateY(-4px)}.landing-composer-actions{flex:none;align-items:center;gap:2px;margin-left:4px;display:flex}.landing-source-button,.landing-send-button{border-radius:var(--radius-md);color:var(--color-text-muted);height:44px;transition:color var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard);background:0 0;border:0;justify-content:center;align-items:center;padding:0;display:inline-flex;position:relative}.landing-source-button{flex:0 0 36px;width:36px}.landing-source-button:before{border-radius:var(--radius-md);content:"";transition:background var(--motion-duration-standard) var(--motion-ease-standard);background:0 0;position:absolute;inset:8px 4px}.landing-source-button>svg,.landing-send-button>svg{z-index:1;position:relative}.landing-source-button:hover{color:var(--color-text-secondary)}.landing-source-button:hover:before{background:var(--color-surface-muted)}.landing-source-button--video{color:var(--color-info)}.landing-source-button--video:hover,.landing-source-button--video.landing-source-button--active{color:var(--color-info-text)}.landing-source-button--video:hover:before,.landing-source-button--video.landing-source-button--active:before{background:var(--color-info-surface)}.landing-source-button--link{color:var(--color-success)}.landing-source-button--link:hover{color:var(--color-success-text)}.landing-source-button--link:hover:before{background:var(--color-success-surface)}.landing-send-button{color:var(--color-text-inverse);flex:0 0 44px;width:44px}.landing-send-button:before{background:var(--color-brand);border-radius:var(--radius-md);content:"";transition:background var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard);position:absolute;inset:6px}.landing-send-button:hover:not(:disabled):before{background:var(--color-brand-hover);transform:translateY(-1px)}.landing-send-button:disabled{color:var(--color-text-inverse);cursor:not-allowed}.landing-send-button:disabled:before{background:var(--color-surface-disabled)}.landing-composer-support{color:var(--color-text-muted);text-align:center;justify-content:center;align-items:center;gap:4px;width:100%;min-height:18px;margin:8px 0 0;font-size:12px;line-height:1.5;display:flex}.landing-composer-support--error{color:var(--color-danger);text-align:left}.landing-material-tags{flex-wrap:wrap;gap:6px;margin-top:8px;padding:8px 12px 4px;display:flex}.landing-material-tag{animation:landing-material-tag-in .28s var(--motion-ease-expressive) both;background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);align-items:center;gap:6px;max-width:min(220px,100%);min-height:30px;padding:5px 8px;font-size:12px;line-height:1;display:inline-flex}.landing-material-tag--error{background:var(--color-accent-surface);border-color:var(--color-warning-border);color:var(--color-accent-text)}.landing-material-tag-icon,.landing-material-tag-loading{color:var(--color-text-muted);flex:none}.landing-material-tag-icon--bilibili{color:var(--color-info)}.landing-material-tag-icon--youtube{color:var(--color-danger)}.landing-material-tag-loading{animation:.8s linear infinite file-tag-spin}.landing-material-tag-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.landing-material-tag-error{color:var(--color-danger-hover);white-space:nowrap;flex:none;font-size:11px}.landing-material-tag-remove{color:var(--color-text-muted);cursor:pointer;height:20px;transition:background var(--motion-duration-fast) var(--motion-ease-standard), color var(--motion-duration-fast) var(--motion-ease-standard);background:0 0;border:0;border-radius:50%;flex:0 0 20px;justify-content:center;align-items:center;width:20px;margin:-2px -4px -2px 0;padding:0;display:inline-flex}.landing-material-tag-remove:hover{background:var(--color-surface-pressed);color:var(--color-text-heading)}.landing-video-source{opacity:0;pointer-events:none;transition:grid-template-rows .32s var(--motion-ease-expressive), opacity .18s var(--motion-ease-standard), transform .32s var(--motion-ease-expressive), visibility 0s linear .32s;visibility:hidden;grid-template-rows:0fr;display:grid;transform:translateY(-6px)}.landing-video-source--open{opacity:1;pointer-events:auto;visibility:visible;grid-template-rows:1fr;transition-delay:0s;transform:translateY(0)}.landing-video-source-inner{min-height:0;overflow:hidden}.landing-video-source form{background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);min-height:46px;transition:border-color var(--motion-duration-standard) var(--motion-ease-standard), box-shadow var(--motion-duration-standard) var(--motion-ease-standard);align-items:center;gap:9px;margin-top:12px;padding:5px 6px 5px 12px;display:flex}.landing-video-source form:focus-within{border-color:var(--color-info-border);box-shadow:0 5px 20px var(--color-shadow-soft)}.landing-video-source-icon{color:var(--color-info);flex:none}.landing-video-source input{color:var(--color-text);font:inherit;background:0 0;border:0;outline:0;flex:auto;min-width:0;padding:6px 0;font-size:12px}.landing-video-source input::placeholder{color:var(--color-text-muted);opacity:1}.landing-video-source button{background:var(--color-brand);border-radius:var(--radius-md);color:var(--color-text-inverse);height:34px;transition:background var(--motion-duration-standard) var(--motion-ease-standard), color var(--motion-duration-standard) var(--motion-ease-standard);border:0;flex:none;justify-content:center;align-items:center;padding:0 13px;font-size:12px;font-weight:700;display:inline-flex}.landing-video-source button:hover:not(:disabled){background:var(--color-brand-hover)}.landing-video-source button:disabled{background:var(--color-surface-disabled);color:var(--color-text-secondary);cursor:not-allowed}.landing-journey-cue{color:var(--color-text-secondary);cursor:pointer;background:0 0;border:0;justify-self:center;align-items:center;gap:8px;padding:8px 10px;font-family:inherit;font-size:14px;text-decoration:none;display:inline-flex}.landing-journey-cue svg{animation:landing-cue 2s var(--motion-ease-pulse) infinite}.landing-page--ready .landing-hero-item{animation:landing-hero-in var(--motion-duration-landing-enter) var(--motion-ease-expressive) both;animation-delay:calc(70ms + var(--hero-order) * 85ms)}.landing-journey{border-top:1px solid var(--color-border-subtle);padding:0 24px 96px}.landing-journey-intro{text-align:center;max-width:1120px;margin:0 auto;padding:72px 0 48px}.landing-journey-intro h2,.landing-final h2{font-family:var(--font-display-cjk);letter-spacing:0;text-wrap:balance;font-weight:400}.landing-journey-intro h2{color:var(--color-text-heading);margin:0;font-size:36px;line-height:1.35}.landing-journey-intro p{color:var(--color-text-secondary);max-width:560px;margin:16px auto 0;font-size:15px;line-height:1.7}.landing-journey-track{max-width:1200px;margin:0 auto;position:relative}.landing-journey-track:before{background:var(--color-brand-border);content:"";width:1px;position:absolute;top:0;bottom:0;left:50%;transform:translate(-.5px)}.landing-journey-step{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:48px;padding:48px 24px;display:grid;position:relative}.landing-journey-copy{grid-column:1;max-width:470px}.landing-step-number{color:var(--color-accent);font-family:var(--font-display-latin);margin-bottom:12px;font-size:48px;font-style:italic;font-weight:400;line-height:1;display:block}.landing-journey-copy h3{color:var(--color-text-heading);font-family:var(--font-display-cjk);letter-spacing:0;text-wrap:balance;margin:0;font-size:23px;font-weight:400;line-height:1.35}.landing-journey-copy p{color:var(--color-text-secondary);max-width:42em;margin:12px 0 0;font-size:15px;line-height:1.7}.landing-journey-node{z-index:2;justify-content:center;align-items:center;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.landing-journey-node>span{background:var(--color-background);border:1px solid var(--color-brand);box-shadow:0 0 0 9px var(--color-background);border-radius:50%;width:11px;height:11px}.landing-product-demo{grid-column:2;justify-self:start;width:100%;min-width:0;max-width:420px}.landing-product-demo--visual,.landing-product-demo--mastery{max-width:520px}.landing-product-demo--knowledge-map{max-width:552px}.landing-product-demo--illustrated,.landing-product-demo--review{max-width:520px}.landing-journey-step--reverse .landing-journey-copy{grid-column:2}.landing-journey-step--reverse .landing-product-demo{grid-area:1/1;justify-self:start}[data-journey-reveal]{transition:opacity .62s var(--motion-ease-expressive), transform .62s var(--motion-ease-expressive), filter .62s var(--motion-ease-expressive), clip-path .62s var(--motion-ease-expressive)}html.landing-motion-booting .landing-page [data-journey-reveal],[data-reveal-state=pending]{clip-path:inset(0 0 7%);filter:blur(4px);opacity:0;transform:translateY(16px)}[data-reveal-state=visible]{clip-path:inset(0);filter:blur();opacity:1;transform:translateY(0)}[data-reveal-state=pending] .landing-demo-header,[data-reveal-state=pending] .landing-material-row,[data-reveal-state=pending] .landing-material-outline-title,[data-reveal-state=pending] .landing-material-outline-row,[data-reveal-state=pending] .landing-digest-lead,[data-reveal-state=pending] .landing-digest-text>p,[data-reveal-state=pending] .landing-research-line,[data-reveal-state=pending] .landing-roadmap-node,[data-reveal-state=pending] .landing-chat-user,[data-reveal-state=pending] .landing-chat-tutor,[data-reveal-state=pending] .landing-chat-actions,[data-reveal-state=pending] .landing-diagnosis-question,[data-reveal-state=pending] .landing-diagnosis-options>span,[data-reveal-state=pending] .landing-diagnosis-result,[data-reveal-state=pending] .landing-diagnosis-route-node,[data-reveal-state=pending] .landing-visual-answer,[data-reveal-state=pending] .landing-visual-chart,[data-reveal-state=pending] .landing-visual-insight,[data-reveal-state=pending] .landing-mastery-heading,[data-reveal-state=pending] .landing-mastery-summary,[data-reveal-state=pending] .landing-mastery-row,[data-reveal-state=pending] .landing-mastery-unlock,[data-reveal-state=pending] .landing-knowledge-map-layout,[data-reveal-state=pending] .landing-mind-map-node,[data-reveal-state=pending] .landing-slide-header,[data-reveal-state=pending] .landing-slide-main,[data-reveal-state=pending] .landing-notes-mark,[data-reveal-state=pending] .landing-notes-footer p,[data-reveal-state=pending] .landing-notes-footer small,[data-reveal-state=pending] .landing-review-chart,[data-reveal-state=pending] .landing-review-notification,[data-reveal-state=pending] .landing-review-dialog,[data-reveal-state=pending] .landing-memory-summary,[data-reveal-state=pending] .landing-memory-row,[data-reveal-state=pending] .landing-memory-note{filter:blur(3px);opacity:0;transform:translateY(12px)}[data-reveal-state=visible] .landing-demo-header{animation:landing-demo-item-in .46s var(--motion-ease-expressive) 80ms both}[data-reveal-state=visible] .landing-material-row{animation:landing-demo-item-in .48s var(--motion-ease-expressive) var(--demo-delay) both}[data-reveal-state=pending] .landing-material-check{opacity:0;transform:scale(.5)}[data-reveal-state=visible] .landing-material-check{animation:landing-demo-check-in .36s var(--motion-ease-expressive) calc(var(--demo-delay) + .25s) both}[data-reveal-state=visible] .landing-material-outline-title{animation:landing-demo-item-in .46s var(--motion-ease-expressive) .66s both}[data-reveal-state=visible] .landing-material-outline-row{animation:landing-demo-item-in .46s var(--motion-ease-expressive) var(--demo-delay) both}[data-reveal-state=visible] .landing-digest-lead{animation:landing-demo-item-in .52s var(--motion-ease-expressive) .17s both}[data-reveal-state=visible] .landing-digest-text>p:first-child{animation:landing-demo-item-in .48s var(--motion-ease-expressive) .31s both}[data-reveal-state=visible] .landing-digest-highlight{animation:landing-demo-highlight-in .52s var(--motion-ease-expressive) .45s both}[data-reveal-state=visible] .landing-research-line{animation:landing-demo-item-in .46s var(--motion-ease-expressive) .61s both}[data-reveal-state=visible] .landing-roadmap-node{animation:landing-demo-item-in .48s var(--motion-ease-expressive) var(--demo-delay) both}[data-reveal-state=pending] .landing-roadmap-marker{transform:scale(.5)}[data-reveal-state=visible] .landing-roadmap-marker{animation:landing-demo-marker-in .36s var(--motion-ease-expressive) calc(var(--demo-delay) + .18s) both}[data-reveal-state=visible] .landing-roadmap-node:not(:last-child):after{animation:landing-demo-line-in .42s var(--motion-ease-expressive) calc(var(--demo-delay) + .23s) both;transform-origin:top}[data-reveal-state=visible] .landing-chat-user{animation:landing-demo-message-in .5s var(--motion-ease-expressive) .17s both}[data-reveal-state=visible] .landing-chat-tutor{animation:landing-demo-item-in .54s var(--motion-ease-expressive) .34s both}[data-reveal-state=visible] .landing-chat-actions{animation:landing-demo-item-in .46s var(--motion-ease-expressive) .59s both}[data-reveal-state=visible] .landing-diagnosis-question{animation:landing-demo-item-in .48s var(--motion-ease-expressive) .14s both}[data-reveal-state=visible] .landing-diagnosis-options>span:first-child{animation:landing-demo-item-in .42s var(--motion-ease-expressive) .26s both}[data-reveal-state=visible] .landing-diagnosis-options>span:nth-child(2){animation:landing-demo-highlight-in .5s var(--motion-ease-expressive) .35s both}[data-reveal-state=visible] .landing-diagnosis-options>span:nth-child(3){animation:landing-demo-item-in .42s var(--motion-ease-expressive) .44s both}[data-reveal-state=visible] .landing-diagnosis-result{animation:landing-demo-highlight-in .5s var(--motion-ease-expressive) .57s both}[data-reveal-state=visible] .landing-diagnosis-route-node,[data-reveal-state=visible] .landing-mastery-row{animation:landing-demo-item-in .46s var(--motion-ease-expressive) var(--demo-delay) both}[data-reveal-state=visible] .landing-visual-answer{animation:landing-demo-item-in .48s var(--motion-ease-expressive) .3s both}[data-reveal-state=visible] .landing-visual-chart{animation:landing-demo-highlight-in .56s var(--motion-ease-expressive) .44s both}[data-reveal-state=pending] .landing-chart-demand,[data-reveal-state=pending] .landing-chart-supply,[data-reveal-state=pending] .landing-review-with,[data-reveal-state=pending] .landing-review-without{stroke-dasharray:1;stroke-dashoffset:1px}[data-reveal-state=visible] .landing-chart-demand{animation:landing-demo-path-in .9s var(--motion-ease-expressive) .58s both}[data-reveal-state=visible] .landing-chart-supply{animation:landing-demo-path-in .9s var(--motion-ease-expressive) .68s both}[data-reveal-state=visible] .landing-visual-insight{animation:landing-demo-item-in .42s var(--motion-ease-expressive) .82s both}[data-reveal-state=visible] .landing-mastery-heading{animation:landing-demo-highlight-in .52s var(--motion-ease-expressive) .16s both}[data-reveal-state=visible] .landing-mastery-summary{animation:landing-demo-item-in .44s var(--motion-ease-expressive) .27s both}[data-reveal-state=visible] .landing-mastery-unlock{animation:landing-demo-highlight-in .52s var(--motion-ease-expressive) .68s both}[data-reveal-state=visible] .landing-knowledge-map-layout{animation:landing-demo-item-in .5s var(--motion-ease-expressive) .14s both}[data-reveal-state=visible] .landing-mind-map-node{animation:landing-mind-map-node-in .48s var(--motion-ease-expressive) var(--map-delay) both}[data-reveal-state=visible] .landing-slide-header{animation:landing-demo-item-in .42s var(--motion-ease-expressive) .1s both}[data-reveal-state=visible] .landing-slide-main{animation:landing-demo-highlight-in .62s var(--motion-ease-expressive) .22s both}[data-reveal-state=visible] .landing-notes-mark{animation:landing-demo-item-in .42s var(--motion-ease-expressive) .47s both}[data-reveal-state=visible] .landing-notes-footer p{animation:landing-demo-highlight-in .52s var(--motion-ease-expressive) .57s both}[data-reveal-state=visible] .landing-notes-footer small{animation:landing-demo-item-in .44s var(--motion-ease-expressive) .72s both}[data-reveal-state=visible] .landing-review-chart{animation:landing-demo-item-in .5s var(--motion-ease-expressive) .14s both}[data-reveal-state=visible] .landing-review-without{animation:landing-demo-path-in .76s var(--motion-ease-expressive) .3s both}[data-reveal-state=visible] .landing-review-with{animation:landing-demo-path-in .96s var(--motion-ease-expressive) .44s both}[data-reveal-state=visible] .landing-review-notification{animation:landing-demo-message-in .5s var(--motion-ease-expressive) .7s both}[data-reveal-state=visible] .landing-review-dialog{animation:landing-demo-item-in .46s var(--motion-ease-expressive) .88s both}[data-reveal-state=visible] .landing-memory-summary{animation:landing-demo-highlight-in .52s var(--motion-ease-expressive) .16s both}[data-reveal-state=visible] .landing-memory-row{animation:landing-demo-item-in .48s var(--motion-ease-expressive) var(--demo-delay) both}[data-reveal-state=pending] .landing-memory-row b{transform:scaleX(0)}[data-reveal-state=visible] .landing-memory-row b{animation:landing-demo-progress-in .68s var(--motion-ease-expressive) calc(var(--demo-delay) + .17s) both;transform-origin:0}[data-reveal-state=visible] .landing-memory-note{animation:landing-demo-item-in .46s var(--motion-ease-expressive) .72s both}.landing-demo{background:var(--color-surface);border:0;border-left:3px solid var(--color-text-heading);border-radius:var(--radius-md);box-shadow:0 8px 24px var(--color-shadow-soft);width:100%;max-width:420px;min-height:0;padding:16px;overflow:hidden}.landing-demo-header{border-bottom:1px solid var(--color-border-subtle);justify-content:space-between;align-items:center;min-height:40px;padding:0 2px 10px;display:flex}.landing-demo-title{color:var(--color-text-heading);align-items:center;gap:8px;font-size:13px;display:flex}.landing-demo-title svg,.landing-demo-title>span{color:var(--color-brand)}.landing-demo-title strong{font-weight:700}.landing-demo-header>span{color:var(--color-text-secondary);font-size:11px}.landing-material-demo .landing-demo-header{margin-bottom:12px}.landing-material-row{border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);grid-template-columns:20px minmax(0,1fr) auto 24px;align-items:center;gap:10px;min-height:48px;margin:0;padding:8px 10px;display:grid}.landing-material-list{gap:8px;display:grid}.landing-roadmap-node>span:nth-child(2),.landing-memory-row>span{gap:5px;min-width:0;display:grid}.landing-material-row strong,.landing-roadmap-node strong,.landing-memory-row strong{color:var(--color-text-heading);text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:650;line-height:1.35;overflow:hidden}.landing-material-icon{justify-content:center;align-items:center;display:flex}.landing-material-icon svg{stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;flex:none}.landing-material-icon .landing-material-youtube-icon,.landing-material-icon .landing-bilibili-icon{stroke:none}.landing-material-icon--pdf{color:#f05252}.landing-material-icon--ebook{color:#8b5cf6}.landing-material-icon--ppt{color:#f59e0b}.landing-material-icon--youtube{color:#f03}.landing-material-icon--bilibili{color:#00a6d6}.landing-material-icon--web{color:#3b82f6}.landing-material-type{background:var(--color-surface-muted);border-radius:var(--radius-xs);color:var(--color-text-secondary);padding:4px 6px;font-size:10px;font-weight:700}.landing-material-type--pdf{color:#e5484d;background:#fff0f0}.landing-material-type--ebook{color:#7c3aed;background:#f4f0ff}.landing-material-type--ppt{color:#d97706;background:#fff7e6}.landing-material-type--youtube{color:#e0002b;background:#fff0f1}.landing-material-type--bilibili{color:#008db8;background:#eaf8fc}.landing-material-type--web{color:#2563eb;background:#edf4ff}.landing-material-check{background:var(--color-success);color:var(--color-text-inverse);border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;display:flex}.landing-material-outline{border-top:1px solid var(--color-border-subtle);margin-top:20px;padding:16px 4px 2px}.landing-material-outline-title{color:var(--color-text-secondary);align-items:center;gap:10px;font-size:12px;display:flex}.landing-material-outline-title svg{color:var(--color-brand);flex:none}.landing-material-outline-list{gap:12px;padding:16px 0 0 34px;display:grid}.landing-material-outline-row{grid-template-columns:24px minmax(0,1fr);align-items:start;gap:10px;display:grid}.landing-material-outline-row>span{background:var(--color-surface-muted);color:var(--color-text-secondary);border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:11px;display:flex}.landing-material-outline-row p{gap:3px;margin:0;display:grid}.landing-material-outline-row strong{color:var(--color-text-heading);font-size:12px;line-height:1.35}.landing-material-outline-row small{color:var(--color-text-secondary);font-size:10.5px;line-height:1.4}.landing-material-row small,.landing-roadmap-node small,.landing-memory-row small{color:var(--color-text-secondary);font-size:11px;line-height:1.35}.landing-reading-status{color:var(--color-accent-text);font-size:11px;font-weight:650}.landing-demo-note{color:var(--color-text-secondary);padding:12px 6px 2px;font-size:11px;line-height:1.5}.landing-digest-demo{padding-bottom:16px}.landing-digest-lead{gap:10px;padding:16px 8px 14px;display:grid}.landing-digest-lead span{color:var(--color-accent-text);font-size:11px;font-weight:700}.landing-digest-lead strong{color:var(--color-text-heading);font-family:var(--font-display-cjk);font-size:21px;font-weight:400;line-height:1.55}.landing-digest-text{color:var(--color-text-secondary);padding:0 8px;font-size:13px;line-height:1.75}.landing-digest-text p{margin:0 0 13px}.landing-digest-highlight{background:var(--color-accent-surface);border-radius:var(--radius-sm);color:var(--color-accent-text);padding:12px 14px}.landing-research-line{color:var(--color-info-text);align-items:center;gap:8px;padding:7px 8px 0;font-size:11px;display:flex}.landing-roadmap-list{padding:10px 8px 4px}.landing-roadmap-node{grid-template-columns:22px minmax(0,1fr) auto;align-items:center;gap:14px;min-height:73px;display:grid;position:relative}.landing-roadmap-node:not(:last-child):after{background:var(--color-border-strong);content:"";width:1px;position:absolute;top:47px;bottom:-10px;left:10px}.landing-roadmap-marker{background:var(--color-surface);border:1px solid var(--color-border-strong);color:var(--color-text-inverse);z-index:1;border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;display:flex}.landing-roadmap-node--0 .landing-roadmap-marker{background:var(--color-brand);border-color:var(--color-brand)}.landing-roadmap-node--1 .landing-roadmap-marker{border:5px solid var(--color-brand-surface);box-shadow:inset 0 0 0 2px var(--color-brand)}.landing-roadmap-current{background:var(--color-brand-surface);border-radius:var(--radius-xs);color:var(--color-brand-text);padding:4px 6px;font-size:10px;font-weight:700}.landing-tutor-demo{padding-bottom:16px}.landing-chat-user{background:var(--color-surface-muted);border-radius:var(--radius-md);color:var(--color-text-heading);max-width:76%;margin:16px 4px 16px auto;padding:11px 13px;font-size:13px;line-height:1.55}.landing-chat-tutor{grid-template-columns:28px minmax(0,1fr);align-items:flex-start;gap:10px;padding:0 6px;display:grid}.landing-chat-avatar{background:var(--color-brand-surface);color:var(--color-brand);border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.landing-chat-tutor p{color:var(--color-text-secondary);margin:0 0 10px;font-size:12.5px;line-height:1.7}.landing-chat-actions{flex-wrap:wrap;gap:7px;padding:10px 6px 0 44px;display:flex}.landing-chat-actions span{border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);color:var(--color-text-secondary);padding:6px 8px;font-size:10.5px}.landing-diagnosis-question,.landing-visual-answer,.landing-review-dialog{grid-template-columns:28px minmax(0,1fr);align-items:start;gap:10px;display:grid}.landing-diagnosis-question{padding:16px 5px 12px}.landing-diagnosis-question p,.landing-visual-answer p,.landing-review-dialog p{color:var(--color-text-secondary);margin:1px 0 0;font-size:12.5px;line-height:1.65}.landing-diagnosis-options{gap:7px;padding:0 5px 14px 43px;display:grid}.landing-diagnosis-options>span{border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);padding:8px 10px;font-size:11.5px;line-height:1.4}.landing-diagnosis-options>.landing-diagnosis-option--active{background:var(--color-accent-surface);border-color:var(--color-brand-border);color:var(--color-accent-text);font-weight:650}.landing-diagnosis-result{background:var(--color-brand-surface);gap:6px;padding:13px 15px;display:grid}.landing-diagnosis-result span{color:var(--color-success-text);align-items:center;gap:5px;font-size:10.5px;font-weight:700;display:flex}.landing-diagnosis-result strong{color:var(--color-text-heading);font-size:13px;line-height:1.4}.landing-diagnosis-route{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding:15px 3px 2px;display:grid;position:relative}.landing-diagnosis-route:before{background:var(--color-border-strong);content:"";height:1px;position:absolute;top:28px;left:16%;right:16%}.landing-diagnosis-route-node{text-align:center;z-index:1;place-items:center;gap:6px;min-width:0;display:grid;position:relative}.landing-diagnosis-route-node i{background:var(--color-surface);border:1px solid var(--color-border-strong);color:var(--color-text-secondary);border-radius:50%;justify-content:center;align-items:center;width:27px;height:27px;font-size:10px;font-style:normal;display:flex}.landing-diagnosis-route-node--0 i{background:var(--color-brand);border-color:var(--color-brand);color:var(--color-text-inverse)}.landing-diagnosis-route-node span{color:var(--color-text-secondary);font-size:10px;line-height:1.3}.landing-visual-demo{border:1px solid var(--color-border);border-radius:var(--radius-xl);gap:16px;max-width:none;min-height:520px;padding:24px;display:grid}.landing-visual-answer{align-items:center;padding:0 4px}.landing-visual-demo .landing-chat-user{background:var(--color-control-muted);border-radius:var(--radius-xl);color:var(--color-text-inverse);max-width:86%;margin:0 0 0 auto;padding:11px 16px;font-size:14px}.landing-visual-answer p{color:var(--color-text-heading);margin:1px 0 0;font-size:14px;line-height:1.6}.landing-visual-chart{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);margin:0;overflow:hidden}.landing-visual-chart-title{color:var(--color-text-heading);padding:14px 16px 0;font-size:13px;font-weight:700}.landing-visual-chart svg{aspect-ratio:500/220;width:100%;height:auto;display:block}.landing-visual-chart text,.landing-review-chart text{fill:var(--color-text-secondary);font-family:Inter,system-ui,sans-serif;font-size:9px}.landing-chart-axis,.landing-review-axis{fill:none;stroke:var(--color-text-secondary);stroke-width:1.2px}.landing-chart-grid,.landing-review-grid{fill:none;opacity:.7;stroke:var(--color-border);stroke-dasharray:4 4;stroke-width:.8px}.landing-chart-demand,.landing-chart-supply,.landing-chart-legend-demand,.landing-chart-legend-supply{fill:none;stroke-linecap:round}.landing-chart-demand,.landing-chart-legend-demand{stroke:var(--color-text-muted)}.landing-chart-demand,.landing-chart-supply{stroke-width:2.5px}.landing-chart-legend-demand,.landing-chart-legend-supply{stroke-width:2px}.landing-chart-legend-demand-dot,.landing-chart-legend-supply-dot{fill:var(--color-surface);stroke-width:2px}.landing-chart-legend-demand-dot{stroke:var(--color-text-muted)}.landing-chart-legend-supply-dot{stroke:var(--color-accent-strong)}.landing-chart-axis-label{font-size:9.5px}.landing-chart-legend-supply-text{fill:var(--color-accent-text)}.landing-chart-guide{fill:none;stroke:var(--color-accent);stroke-dasharray:4 4;stroke-width:1px}.landing-chart-supply,.landing-chart-legend-supply{stroke:var(--color-accent-strong)}.landing-chart-point{fill:var(--color-accent);stroke:var(--color-surface);stroke-width:2px}.landing-visual-insight{color:var(--color-text-heading);margin:0;padding-left:38px;font-size:13px;line-height:1.65}.landing-visual-insight p{margin:0 0 8px}.landing-visual-insight p:last-child{margin-bottom:0}.landing-visual-insight strong{font-weight:750}.landing-visual-question{color:var(--color-text-secondary);font-style:italic}.landing-mastery-demo{background:var(--color-success-surface);border:1px solid var(--color-success-border);border-radius:var(--radius-xl);flex-direction:column;max-width:none;min-height:320px;padding:24px;display:flex}.landing-mastery-heading{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px;display:flex}.landing-mastery-heading>strong{color:var(--color-text-heading);font-size:17px;font-weight:700;line-height:1.4}.landing-mastery-heading>span{background:var(--color-success);border-radius:var(--radius-pill);color:var(--color-text-inverse);align-items:center;gap:4px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.landing-mastery-summary{color:var(--color-text-secondary);margin:0 0 18px;font-size:14px;line-height:1.65}.landing-mastery-list{margin-bottom:18px}.landing-mastery-row{border-bottom:1px solid var(--color-success-border);grid-template-columns:122px minmax(0,1fr);align-items:center;gap:16px;min-height:0;padding:12px 0;display:grid}.landing-mastery-row:first-child{border-top:1px solid var(--color-success-border)}.landing-mastery-row strong{color:var(--color-text-heading);font-size:14px;font-weight:700}.landing-mastery-row small{color:var(--color-text-secondary);font-size:14px;line-height:1.5}.landing-mastery-unlock{color:var(--color-text-secondary);flex-wrap:wrap;align-items:center;gap:8px;margin-top:auto;padding-top:4px;font-size:13px;display:flex}.landing-mastery-unlock strong,.landing-mastery-unlock svg{color:var(--color-accent-text)}.landing-knowledge-map-demo{border:1px solid var(--color-border);border-radius:var(--radius-xl);border-left-width:1px;max-width:none;padding:0}.landing-knowledge-map-layout{grid-template-columns:180px minmax(0,1fr);height:440px;display:grid;overflow:hidden}.landing-map-outline{background:var(--color-surface);border-right:1px solid var(--color-border);flex-direction:column;min-width:0;display:flex;overflow:hidden}.landing-map-outline-header{color:var(--color-text-heading);flex:none;padding:12px 12px 8px;font-size:12px;font-weight:700;line-height:1.4;display:block}.landing-map-outline-tree{scrollbar-color:var(--color-border-strong) transparent;scrollbar-width:thin;flex:auto;min-height:0;padding:0 0 16px;overflow-y:auto}.landing-map-outline-tree::-webkit-scrollbar{width:4px}.landing-map-outline-tree::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:2px}.landing-map-outline-branch{flex-direction:column;display:flex}.landing-map-outline-item{appearance:none;color:var(--color-text-secondary);cursor:pointer;font:inherit;text-align:left;min-height:30px;transition:background var(--motion-duration-fast) var(--motion-ease-standard), color var(--motion-duration-fast) var(--motion-ease-standard);background:0 0;border:0;align-items:center;gap:4px;width:100%;padding:6px 12px 6px 8px;display:flex}.landing-map-outline-item:hover{background:var(--color-surface-subtle)}.landing-map-outline-item:focus-visible{box-shadow:inset 3px 0 0 var(--color-focus);outline:0}.landing-map-outline-item--active{background:var(--color-surface-muted)}.landing-map-outline-item--active .landing-map-outline-label{color:var(--color-text-heading);font-weight:650}.landing-map-outline-chevron{border-radius:var(--radius-sm);color:var(--color-text-subtle);height:18px;transition:background var(--motion-duration-fast) var(--motion-ease-standard), transform var(--motion-duration-fast) var(--motion-ease-standard);flex:0 0 18px;justify-content:center;align-items:center;width:18px;display:flex}.landing-map-outline-item:hover .landing-map-outline-chevron{background:var(--color-surface-strong)}.landing-map-outline-chevron--open{transform:rotate(90deg)}.landing-map-outline-dot{flex:0 0 18px;justify-content:center;align-items:center;width:18px;height:18px;display:flex}.landing-map-outline-dot:after{background:var(--color-border-strong);content:"";border-radius:50%;width:4px;height:4px}.landing-map-outline-item--active .landing-map-outline-dot:after{background:var(--color-text-heading)}.landing-map-outline-number{color:var(--color-text-subtle);flex:none;min-width:14px;font-size:11px;font-weight:500;line-height:1}.landing-map-outline-item--active .landing-map-outline-number{color:var(--color-text-secondary)}.landing-map-outline-label{color:var(--color-text-secondary);letter-spacing:0;text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:13px;font-weight:400;line-height:1.4;overflow:hidden}.landing-map-canvas{background:var(--color-surface-subtle);touch-action:none;min-width:0;position:relative;overflow:hidden}.landing-mind-map-svg{cursor:grab;-webkit-user-select:none;user-select:none;width:100%;height:100%}.landing-mind-map-svg:active,.landing-mind-map-svg:active .landing-mind-map-node{cursor:grabbing}.landing-map-canvas .landing-mind-map-link{fill:none;stroke:var(--map-link-color,var(--color-border-strong));stroke-linecap:round;stroke-width:1.2px;pointer-events:none;transition:d .26s var(--motion-ease-expressive), opacity var(--motion-duration-standard) var(--motion-ease-standard);vector-effect:non-scaling-stroke}.landing-map-canvas .landing-mind-map-link--root{--map-link-color:var(--color-chart-3)}.landing-map-canvas .landing-mind-map-link--chart-1{--map-link-color:var(--color-chart-1)}.landing-map-canvas .landing-mind-map-link--chart-2{--map-link-color:var(--color-chart-2)}.landing-map-canvas .landing-mind-map-link--chart-3{--map-link-color:var(--color-chart-3)}.landing-map-canvas .landing-mind-map-link--chart-4{--map-link-color:var(--color-chart-4)}.landing-map-canvas .landing-mind-map-link--chart-5{--map-link-color:var(--color-chart-5)}.landing-map-canvas .landing-mind-map-link--chart-6{--map-link-color:var(--color-chart-6)}.landing-mind-map-node{--map-delay:.36s;--map-node-color:var(--color-chart-1);cursor:pointer;outline:none}.landing-mind-map-node text{fill:var(--color-text-secondary);font-family:var(--font-body);letter-spacing:0;paint-order:stroke fill;pointer-events:auto;pointer-events:bounding-box;stroke:var(--color-surface-subtle);stroke-linejoin:round;stroke-width:3px;font-size:10px;font-weight:500}.landing-mind-map-node circle{fill:var(--color-surface);stroke:var(--map-node-color);stroke-width:1.35px;transition:fill var(--motion-duration-standard) var(--motion-ease-standard), stroke var(--motion-duration-standard) var(--motion-ease-standard), stroke-width var(--motion-duration-standard) var(--motion-ease-standard);vector-effect:non-scaling-stroke}.landing-mind-map-node>path{fill:none;pointer-events:none;stroke:var(--map-node-color);stroke-linecap:round;stroke-width:1.2px;vector-effect:non-scaling-stroke}.landing-mind-map-node>.landing-mind-map-hit-area{fill:#0000;pointer-events:all;stroke:none}.landing-mind-map-node--branch:hover circle,.landing-mind-map-node--branch:focus-visible circle{fill:var(--color-surface);stroke-width:2.4px}.landing-mind-map-node--branch:hover text,.landing-mind-map-node--branch:focus-visible text{fill:var(--color-text-heading)}.landing-mind-map-node--leaf circle{fill:var(--map-node-color)}.landing-mind-map-node--chart-1{--map-node-color:var(--color-chart-1)}.landing-mind-map-node--chart-2{--map-node-color:var(--color-chart-2)}.landing-mind-map-node--chart-3{--map-node-color:var(--color-chart-3)}.landing-mind-map-node--chart-4{--map-node-color:var(--color-chart-4)}.landing-mind-map-node--chart-5{--map-node-color:var(--color-chart-5)}.landing-mind-map-node--chart-6{--map-node-color:var(--color-chart-6)}.landing-mind-map-node--active text{fill:var(--color-text-heading);font-weight:700}.landing-mind-map-node--active circle{filter:drop-shadow(0 0 2px var(--map-node-color));stroke-width:2.5px}.landing-mind-map-node--root{--map-delay:.28s;--map-node-color:var(--color-chart-3)}.landing-mind-map-node--root text{fill:var(--color-text-heading);font-size:9px;font-weight:700}.landing-mind-map-node--root circle{fill:var(--color-surface);stroke:var(--map-node-color);stroke-width:2px}.landing-mind-map-node--root>path{stroke:var(--map-node-color)}.landing-mind-map-node--root:hover circle,.landing-mind-map-node--root:focus-visible circle{fill:var(--color-surface);stroke-width:3px}.landing-mind-map-placeholder{width:100%;height:100%}.landing-illustrated-demo{border-left-color:var(--color-accent-strong);max-width:none;margin-left:auto;padding:0}.landing-slide-header{border-bottom:1px solid var(--color-border-subtle);color:var(--color-text-secondary);justify-content:space-between;align-items:center;min-height:52px;padding:0 18px 0 20px;font-size:12px;display:flex}.landing-slide-example{color:var(--color-text-secondary);font-size:12px;font-weight:500}.landing-slide-main{aspect-ratio:16/9;background:var(--color-surface-muted);position:relative;overflow:hidden}.landing-slide-main>img{object-fit:cover;width:100%;height:100%;display:block}.landing-slide-caption{color:var(--color-text-inverse);background:#1c1917e0;gap:3px;max-width:calc(100% - 28px);padding:10px 12px;display:grid;position:absolute;bottom:14px;left:14px}.landing-slide-caption span{color:#d7c7b0;font-size:9.5px}.landing-slide-caption strong{font-size:13px;line-height:1.35}.landing-notes-footer{background:var(--color-accent-surface);border-top:1px solid var(--color-accent-border);align-content:center;gap:10px;min-height:128px;padding:18px 20px 20px;display:grid}.landing-notes-mark{color:var(--color-accent-text);align-items:center;gap:6px;font-size:12px;font-weight:700;display:inline-flex}.landing-notes-footer p{color:var(--color-text-heading);font-family:var(--font-display-cjk);margin:0;font-size:15px;line-height:1.55}.landing-notes-footer small{border-top:1px solid var(--color-accent-border);color:var(--color-text-secondary);padding-top:10px;font-size:11px;line-height:1.45}.landing-review-demo{border-left-color:var(--color-accent-strong);max-width:none;padding:20px 20px 18px}.landing-review-demo .landing-demo-header{min-height:52px;padding:0 4px 14px}.landing-review-demo .landing-demo-title{font-size:15px}.landing-review-chart{padding:16px 8px 10px}.landing-review-chart svg{width:100%;display:block}.landing-review-without{fill:none;opacity:.6;stroke:var(--color-text-secondary);stroke-dasharray:6 5;stroke-width:1.7px}.landing-review-with{fill:none;stroke:var(--color-success);stroke-linecap:round;stroke-linejoin:round;stroke-width:2.5px}.landing-review-chart circle{fill:var(--color-success);stroke:var(--color-surface);stroke-width:2px}.landing-review-legend{color:var(--color-text-secondary);justify-content:center;gap:20px;margin-top:0;font-size:11px;display:flex}.landing-review-legend span{align-items:center;gap:6px;display:inline-flex}.landing-review-legend i{background:var(--color-text-secondary);opacity:.6;width:18px;height:2px}.landing-review-legend span:last-child i{background:var(--color-success);opacity:1}.landing-review-notification{background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-sm);grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:12px;margin:10px 6px 14px;padding:13px 14px;display:grid}.landing-review-notification-icon{background:var(--color-brand-surface);color:var(--color-brand);border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.landing-review-notification>div{gap:4px;display:grid}.landing-review-notification strong{color:var(--color-text-heading);font-size:13px}.landing-review-notification small,.landing-review-notification time{color:var(--color-text-secondary);font-size:11px;line-height:1.35}.landing-review-notification time{align-self:start}.landing-review-dialog{grid-template-columns:36px minmax(0,1fr);gap:12px;padding:2px 8px 4px}.landing-review-dialog .landing-chat-avatar{width:36px;height:36px}.landing-review-dialog p{font-size:14px;line-height:1.65}.landing-memory-summary{background:var(--color-brand-surface);gap:8px;margin:14px 2px 12px;padding:17px 18px;display:grid}.landing-memory-summary span{color:var(--color-brand-text);font-size:10.5px;font-weight:700}.landing-memory-summary strong{color:var(--color-text-heading);font-family:var(--font-display-cjk);font-size:17px;font-weight:400;line-height:1.55}.landing-memory-row{grid-template-columns:minmax(0,1fr) 110px;align-items:center;gap:18px;padding:8px 6px;display:grid}.landing-memory-row i{background:var(--color-surface-pressed);border-radius:var(--radius-pill);height:4px;display:block;overflow:hidden}.landing-memory-row b{background:var(--color-accent);border-radius:inherit;height:100%;display:block}.landing-memory-note{color:var(--color-info-text);padding:14px 6px 0;font-size:11px;line-height:1.6}.landing-final{background:var(--color-surface-inverse);color:var(--color-text-inverse);justify-content:space-between;align-items:center;min-height:470px;padding:80px max(28px,50vw - 580px);display:flex}.landing-final-copy>span{color:var(--color-accent)}.landing-final h2{color:var(--color-text-inverse);margin:28px 0 0;font-size:48px;line-height:1.42}.landing-final p{color:#d8d4ce;max-width:520px;margin:20px 0 0;font-size:15px;line-height:1.75}.landing-final-cta{background:var(--color-accent);color:var(--color-surface-inverse);flex:none;min-height:52px;margin-left:48px;padding:0 22px}.landing-final-cta:hover{background:var(--color-accent-strong)}@keyframes landing-hero-in{0%{clip-path:inset(0 0 14%);filter:blur(5px);opacity:0;transform:translateY(18px)}to{clip-path:inset(0);filter:blur();opacity:1;transform:translateY(0)}}@keyframes landing-word-in{0%{filter:blur(8px);opacity:0}to{filter:blur();opacity:1}}@keyframes landing-prompt-in{0%{filter:blur(3px);opacity:0;transform:translateY(4px)}to{filter:blur();opacity:1;transform:translateY(0)}}@keyframes landing-material-tag-in{0%{filter:blur(2px);opacity:0;transform:translateY(-4px)}to{filter:blur();opacity:1;transform:translateY(0)}}@keyframes landing-cue{0%,to{transform:translateY(0)}50%{transform:translateY(3px)}}@keyframes landing-demo-item-in{0%{filter:blur(3px);opacity:0;transform:translateY(12px)}to{filter:blur();opacity:1;transform:translateY(0)}}@keyframes landing-demo-check-in{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}@keyframes landing-demo-highlight-in{0%{clip-path:inset(0 100% 0 0);filter:blur(2px);opacity:0}to{clip-path:inset(0);filter:blur();opacity:1}}@keyframes landing-demo-marker-in{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}@keyframes landing-demo-line-in{0%{transform:scaleY(0)}to{transform:scaleY(1)}}@keyframes landing-demo-message-in{0%{filter:blur(3px);opacity:0;transform:translate(14px)}to{filter:blur();opacity:1;transform:translate(0)}}@keyframes landing-demo-progress-in{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@keyframes landing-demo-path-in{0%{stroke-dasharray:1;stroke-dashoffset:1px}to{stroke-dasharray:1;stroke-dashoffset:0}}@keyframes landing-mind-map-node-in{0%{filter:blur(3px);opacity:0;transform:scale(.82)}to{filter:blur();opacity:1;transform:scale(1)}}@media (width<=1000px){.landing-hero-title{font-size:44px}.landing-journey-step{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;padding-left:12px;padding-right:12px}.landing-journey-copy{padding-right:0}.landing-knowledge-map-layout{grid-template-columns:minmax(0,1fr)}.landing-map-outline{display:none}.landing-product-demo,.landing-journey-step--reverse .landing-journey-copy{padding-left:0}.landing-journey-step--reverse .landing-product-demo{padding-right:0}.landing-journey-copy h3{font-size:22px}}@media (width<=800px){.landing-header{height:64px;padding:0 20px}.landing-hero{min-height:calc(88svh - 64px);padding:40px 20px 48px}.landing-hero-main{padding-bottom:0}.landing-hero-emblem{margin-bottom:20px}.landing-hero-title{white-space:normal;font-size:40px}.landing-hero-copy{margin-top:20px;font-size:16px;line-height:1.7}.landing-composer-area{margin-top:36px}.landing-journey{padding-left:20px;padding-right:20px}.landing-journey-intro{padding:72px 12px 40px}.landing-journey-intro h2{font-size:32px}.landing-journey-track{padding-left:30px}.landing-journey-track:before{display:block;left:9px}.landing-journey-step,.landing-journey-step--reverse{grid-template-columns:minmax(0,1fr);align-items:start;gap:24px;min-height:0;padding:32px 0;display:grid}.landing-journey-copy,.landing-journey-step--reverse .landing-journey-copy{grid-area:1/1;padding:0}.landing-product-demo,.landing-journey-step--reverse .landing-product-demo{grid-area:2/1;justify-self:stretch;max-width:420px;padding:0}.landing-knowledge-map-layout{grid-template-columns:minmax(0,1fr);height:320px}.landing-map-outline{display:none}.landing-knowledge-map-demo{padding:0}.landing-map-canvas{touch-action:pan-y}.landing-journey-node{display:flex;top:48px;left:-21px;transform:none}.landing-step-number{font-size:36px}.landing-journey-copy h3{font-size:21px}.landing-journey-copy p{max-width:39em}.landing-final{flex-direction:column;align-items:flex-start;gap:44px;min-height:520px;padding:74px 28px}.landing-final-cta{margin-left:0}}@media (width<=520px){.landing-header-cta{min-height:44px;padding:0 13px}.landing-brand{gap:8px}.landing-brand-name{font-size:22px}.landing-hero{padding:32px 16px 40px}.landing-hero-emblem{margin-bottom:16px}.landing-hero-title{font-size:36px;line-height:1.2}.landing-word-window{margin:0 4px}.landing-copy-break{display:none}.landing-hero-copy{max-width:29em;font-size:15px}.landing-composer{border-radius:var(--radius-xl);min-height:56px;padding:6px 4px 6px 12px}.landing-composer-area{margin-top:32px}.landing-composer-prefix{margin-right:7px;font-size:15px}.landing-composer textarea,.landing-composer-prompt{font-size:15px}.landing-composer textarea{height:34px;padding:5px 0}.landing-composer-actions{gap:0;margin-left:2px}.landing-source-button{flex-basis:32px;width:32px}.landing-source-button:before{left:2px;right:2px}.landing-send-button{flex-basis:44px;width:44px}.landing-composer-support{padding:0 4px;font-size:11px}.landing-material-tags{padding-left:4px;padding-right:4px}.landing-video-source form{gap:7px;padding-left:10px}.landing-video-source button{padding:0 11px}.landing-journey-cue{font-size:12px}.landing-journey{padding-bottom:64px;padding-left:16px;padding-right:16px}.landing-journey-intro{padding:56px 0 32px}.landing-journey-intro h2{font-size:30px}.landing-journey-intro p,.landing-journey-copy p{font-size:15px}.landing-journey-track{padding-left:26px}.landing-journey-track:before{display:block;left:8px}.landing-journey-step,.landing-journey-step--reverse{gap:24px;padding:32px 0}.landing-journey-node{display:flex;top:44px;left:-18px;transform:none}.landing-journey-node>span{box-shadow:0 0 0 7px var(--color-background);width:9px;height:9px}.landing-journey-copy h3{font-size:19px}.landing-demo{min-height:0;padding:16px}.landing-illustrated-demo{padding:0}.landing-demo-header{padding:0 2px 10px}.landing-knowledge-map-layout{height:320px}.landing-knowledge-map-demo{padding:0}.landing-visual-insight{padding-left:0}.landing-material-row{grid-template-columns:18px minmax(0,1fr) auto 22px;gap:9px;margin-left:0;margin-right:0;padding-left:8px;padding-right:8px}.landing-material-row strong{font-size:12px}.landing-digest-lead,.landing-digest-text,.landing-research-line{padding-left:8px;padding-right:8px}.landing-digest-lead strong{font-size:18px}.landing-roadmap-list{padding-left:8px;padding-right:8px}.landing-chat-tutor{padding-left:6px;padding-right:6px}.landing-chat-actions{padding-left:44px;padding-right:6px}.landing-memory-summary{margin-left:2px;margin-right:2px}.landing-memory-row{grid-template-columns:minmax(0,1fr) 72px;gap:12px;padding-left:6px;padding-right:6px}.landing-memory-note{padding-left:6px;padding-right:6px}.landing-final{min-height:500px;padding:64px 22px}.landing-final h2{font-size:36px}.landing-final p{font-size:14px}}@media (prefers-reduced-motion:reduce){.auth-flow-content,.auth-scene-character,.auth-scene-eyes,.auth-scene-eyeball,.auth-scene-pupil,.auth-scene-mouth,.auth-scene-shake{transition:none;animation:none}.landing-page--ready .landing-hero-item,.landing-rotating-word,.landing-composer-prompt,.landing-material-tag,.landing-journey-cue svg,.thinking-content,.empty-hero-logo,.empty-hero h2,.empty-hero p,.empty-topics>span,.empty-prompt-grid button{animation:none}.landing-composer-prompt,.landing-video-source,.landing-video-source form,.landing-video-source button,.thinking-chevron{transition:none}.survey-question-content,.survey-option,.survey-option.selected>svg,.survey-tab,.survey-tab-status>svg,.survey-actions button{transition:none!important;animation:none!important}[data-journey-reveal],[data-reveal-state=pending],[data-reveal-state=visible]{clip-path:none;filter:none;opacity:1;transition:none;transform:none}.landing-hero-main{filter:none;opacity:1;transition:none;transform:none}.landing-rotating-word{filter:none;opacity:1;transition:none}[data-journey-reveal] .landing-demo *,[data-journey-reveal] .landing-demo :after{filter:none;opacity:1;transform:none;animation:none!important}}.streaming-node{position:relative}.streaming-node:after{animation:streamPulse var(--motion-duration-learning-pulse) var(--motion-ease-pulse) infinite;background:var(--color-accent-strong);border-radius:var(--radius-pill);content:"";width:8px;height:8px;position:absolute;top:16px;right:16px}.skeleton-line,.skeleton-block{animation:skeletonShimmer var(--motion-duration-learning-pulse) var(--motion-ease-pulse) infinite;background:linear-gradient(90deg, var(--color-skeleton), var(--color-skeleton-highlight), var(--color-skeleton));border-radius:var(--radius-md);background-size:220% 100%}.skeleton-line{width:72%;max-width:560px;height:18px}.skeleton-line.short{width:130px;height:24px}.skeleton-line.title{width:54%;max-width:460px;height:30px}.skeleton-block{width:100%;height:76px}@keyframes streamPulse{0%,to{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1)}}@keyframes skeletonShimmer{0%{background-position:180% 0}to{background-position:-40% 0}}.survey-tabs{border-bottom:1px solid var(--color-border);gap:4px;min-height:0;margin-bottom:12px;padding-bottom:4px;display:flex}.survey-tab{border-radius:var(--radius-md) var(--radius-md) 0 0;color:var(--color-text-subtle);cursor:pointer;min-width:0;transition:color var(--motion-duration-standard) var(--motion-ease-standard), opacity var(--motion-duration-standard) var(--motion-ease-standard);flex:0 auto;align-items:center;gap:4px;padding:4px 12px;font-family:inherit;font-size:13px;font-weight:500;display:inline-flex;position:relative}.survey-tab:disabled{cursor:default}.survey-tab-status{flex:0 0 13px;justify-content:center;align-items:center;width:13px;height:13px;display:inline-flex}.survey-tab-status>svg{animation:survey-option-check-in .18s var(--motion-ease-expressive) both;color:var(--color-accent-strong);flex:none}.survey-tab>span:not(.survey-tab-status){text-overflow:ellipsis;white-space:nowrap;min-width:0;display:block;overflow:hidden}.survey-tab.active{color:var(--color-text)}.survey-tab.active:after{background:var(--color-accent);content:"";border-radius:1px;height:2px;position:absolute;bottom:-5px;left:0;right:0}.survey-question-content[data-transition-state=leaving]{pointer-events:none;animation:.16s ease-in both survey-question-leave}.survey-question-content[data-transition-state=entering]{animation:survey-question-enter .26s var(--motion-ease-expressive) both;pointer-events:none}.survey-panel h2{color:var(--color-text);margin:0 0 12px;font-size:14px;font-weight:400;line-height:1.6}.survey-options{flex-direction:column;gap:8px;display:flex}.survey-option{background:var(--color-surface);border-radius:var(--radius-md);color:var(--color-text);cursor:pointer;text-align:left;min-height:0;transition:background-color var(--motion-duration-standard) var(--motion-ease-standard), border-color var(--motion-duration-standard) var(--motion-ease-standard), color var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard);-webkit-user-select:none;user-select:none;border:1px solid #0000;justify-content:flex-start;gap:8px;width:100%;padding:12px;position:relative}.survey-option:hover:not(:disabled):not(.readonly):not(.selected){background:var(--color-surface)}@supports (color:color-mix(in lab, red, red)){.survey-option:hover:not(:disabled):not(.readonly):not(.selected){background:color-mix(in srgb, var(--color-surface) 80%, var(--color-accent))}}.survey-option:active:not(:disabled):not(.readonly){transform:scale(.98)}.survey-option:disabled,.survey-option.readonly{cursor:default;opacity:.7}.survey-option-label{color:var(--color-text-secondary);flex-shrink:0;min-width:20px;font-size:14px;font-weight:500}.survey-option-text{color:inherit;overflow-wrap:anywhere;flex:auto;min-width:0;font-size:14px;font-weight:400;line-height:1.5}.survey-option.selected{border-color:var(--color-accent);background:var(--color-accent-surface)}.survey-option svg{color:var(--color-accent-strong);margin-left:auto}.survey-option.selected>svg{animation:survey-option-check-in .18s var(--motion-ease-expressive) both}.survey-option-other{border-color:var(--color-border);color:var(--color-text);cursor:pointer;border-style:dashed}.survey-option-other svg{color:var(--color-text-disabled);flex:none;margin-left:0}.survey-option-other--expanded{align-items:center;min-height:0;padding:12px;transform:none!important}.survey-freeform-control{color:inherit;cursor:text;resize:none;background:0 0;border:0;outline:none;flex:auto;width:100%;min-width:0;height:21px;padding:0;font-family:inherit;font-size:14px;font-weight:400;line-height:1.5;overflow:hidden}.survey-freeform-control::placeholder{color:var(--color-text-subtle);opacity:1}.survey-option-other:focus-within{background:var(--color-accent-surface);border-color:var(--color-accent);border-style:solid}.survey-option-other--expanded.selected,.survey-option-other--expanded:focus-within{background:var(--color-accent-surface);border-color:var(--color-border);border-style:dashed}.survey-actions{justify-content:center;margin-top:12px;display:flex}.survey-actions button{background:var(--color-control-primary);border-radius:var(--radius-md);color:var(--color-text-inverse);min-height:0;transition:background-color var(--motion-duration-standard) var(--motion-ease-standard), opacity var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard);border:0;width:fit-content;padding:8px 32px;font-size:14px;font-weight:500}.survey-actions button:not(:disabled):hover{background:var(--color-code-background-strong);transform:translateY(-1px)}.survey-actions button:disabled{cursor:not-allowed;opacity:.45}.survey-panel--readonly .survey-actions button{background:var(--color-control-disabled)}.survey-panel--readonly .survey-actions button:hover{background:var(--color-control-disabled);transform:none}@keyframes survey-question-leave{0%{filter:blur();opacity:1;transform:translateY(0)}to{filter:blur(1.5px);opacity:.06;transform:translateY(-3px)}}@keyframes survey-question-enter{0%{filter:blur(1.5px);opacity:.06;transform:translateY(4px)}to{filter:blur();opacity:1;transform:translateY(0)}}@keyframes survey-option-check-in{0%{opacity:0;transform:scale(.7)}to{opacity:1;transform:scale(1)}}.memory-hint-card{background:var(--color-surface-strong);border-radius:var(--radius-md);flex-direction:column;margin:4px 0;display:flex;overflow:hidden}.memory-hint-header{color:var(--color-text-secondary);cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:6px;width:100%;padding:8px 12px;font-family:inherit;font-size:13px;font-weight:500;line-height:1.4;display:inline-flex}.memory-hint-header:disabled{cursor:default}.memory-hint-icon,.memory-hint-chevron{flex-shrink:0;align-items:center;display:flex}.memory-hint-text{flex:1}.memory-hint-chevron{color:var(--color-text-subtle);transition:transform var(--motion-duration-standard) var(--motion-ease-standard)}.memory-hint-chevron.expanded{transform:rotate(180deg)}.memory-hint-detail-inner{flex-direction:column;gap:2px;padding:0 12px 8px;display:flex}.memory-hint-desc{color:var(--color-text-secondary);margin:0;font-size:12px;line-height:1.5}.tool-hint{background:var(--color-surface-strong);border-radius:var(--radius-md);color:var(--color-text-secondary);align-self:flex-start;align-items:center;gap:6px;min-height:26px;margin:4px 0;padding:4px 10px;font-size:12px;font-weight:500;line-height:1.4;display:inline-flex}.tool-hint--error{background:var(--color-danger-surface);color:var(--color-danger-text)}.tool-status-spinner{animation:.9s linear infinite deep-research-spin}.drop-button{border-radius:var(--radius-pill);box-shadow:0 8px 22px var(--color-shadow);color:var(--color-text-muted);justify-content:center;align-items:center;width:68px;height:68px;display:flex;position:absolute;bottom:24px;left:50%;transform:translate(-50%);background:var(--color-surface)!important;border:1px solid var(--color-border)!important}.practice-panel{background:var(--color-surface);border:1px solid var(--color-accent-surface-strong);border-radius:var(--radius-md);box-shadow:0 6px 18px var(--color-shadow-soft);min-width:0;overflow:hidden}.practice-header{justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.practice-header span{color:var(--color-accent-strong);margin-bottom:6px;font-size:15px;font-weight:900;display:block}.practice-header h2{margin:0;font-size:23px;line-height:1.25}.practice-header button{background:var(--color-code-background-strong);border-radius:var(--radius-md);color:var(--color-text-inverse);gap:8px;min-height:42px;padding:0 18px}.code-editor{border-top:1px solid var(--color-code-background);min-height:254px}.code-editor .cm-editor{min-height:254px}.practice-footer{background:var(--color-background);color:var(--color-text-muted);justify-content:space-between;align-items:center;min-height:42px;padding:0 24px;font-size:14px;font-weight:800;display:flex}.journey-dock{background:var(--color-surface);border-top:1px solid var(--color-border);flex:none;justify-content:space-between;align-items:center;gap:16px;min-height:64px;margin:0;padding:9px 24px;display:flex}.journey-dock h2{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;margin:0 0 6px;font-size:15px;font-weight:600;line-height:1.3;overflow:hidden}.journey-dock p{color:var(--color-text-subtle);margin:0;font-size:13px;font-weight:400;line-height:1.5}.journey-dock>div:first-child{min-width:0}.journey-dock button{background:var(--color-surface-subtle);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text-secondary);white-space:nowrap;gap:6px;min-height:32px;padding:0 13px;font-size:13px;font-weight:500}.journey-actions{flex:none;align-items:center;gap:12px;display:flex}.learning-info-sidebar{background:var(--color-background);border-left:1px solid var(--color-border);color:var(--color-text-heading);flex-direction:column;min-width:0;height:100vh;padding:24px 28px 28px;display:flex;overflow:hidden}.learning-info-header{flex:none;justify-content:space-between;align-items:center;gap:14px;min-height:42px;display:flex}.learning-info-header h2{color:var(--color-text);font-family:var(--font-display-cjk);letter-spacing:0;text-overflow:ellipsis;white-space:nowrap;min-width:0;margin:0;font-size:23px;font-style:normal;font-weight:400;line-height:1.2;overflow:hidden}.learning-info-header button{color:var(--color-text-subtle);flex:none;width:32px;height:32px}.learning-info-tabs{background:var(--color-surface-pressed);border-radius:var(--radius-lg);flex:none;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:20px;padding:4px;display:grid}.learning-info-tabs button{color:var(--color-text-subtle);border-radius:9px;justify-content:center;height:40px;font-size:16px;font-weight:800}.learning-info-tabs button.active{background:var(--color-surface);box-shadow:0 2px 10px var(--color-shadow);color:var(--color-text-heading)}.learning-info-progress{flex:none;gap:10px;margin-top:20px;display:grid}.learning-info-progress span{color:var(--color-text-subtle);font-size:15px;font-weight:800}.learning-info-progress div{background:var(--color-surface-disabled);border-radius:var(--radius-pill);height:5px;overflow:hidden}.learning-info-progress i{background:var(--color-success);border-radius:inherit;height:100%;display:block}.learning-info-actions{flex:none;gap:9px;width:min(284px,100%);margin:20px auto 30px;display:grid}.learning-info-actions button{background:var(--color-surface);border:1px solid var(--color-border-strong);box-shadow:0 2px 8px var(--color-shadow-soft);color:var(--color-text-secondary);border-radius:15px;justify-content:center;gap:10px;height:44px;font-size:15px;font-weight:850}.learning-info-roadmap{flex:auto;min-height:0;padding:4px 0 24px;overflow-y:auto}.learning-info-node{grid-template-columns:28px minmax(0,1fr);gap:12px;min-height:76px;display:grid;position:relative}.learning-info-node:not(:last-child):after{background:var(--color-success);content:"";width:2px;position:absolute;top:26px;bottom:-4px;left:13px}.learning-info-node.status-locked:not(:last-child):after{background:var(--color-surface-disabled)}.learning-info-node-marker{background:var(--color-background);border:2px solid var(--color-border-strong);border-radius:var(--radius-pill);color:var(--color-text-inverse);z-index:1;justify-content:center;align-items:center;width:28px;height:28px;margin-top:2px;display:flex;position:relative}.learning-info-node.status-mastered .learning-info-node-marker{background:var(--color-success);border-color:var(--color-success)}.learning-info-node.status-active .learning-info-node-marker{border-color:var(--color-accent-strong)}.learning-info-node.status-active .learning-info-node-marker:after{background:var(--color-accent-strong);border-radius:var(--radius-pill);content:"";width:8px;height:8px}.learning-info-node.status-locked .learning-info-node-marker{border-style:dashed}.learning-info-node-body{border-radius:var(--radius-md);gap:6px;min-width:0;padding:0 0 22px;display:grid}.learning-info-node.status-active .learning-info-node-body{background:var(--color-surface-active);margin:-9px 0 11px;padding:9px 12px 12px}.learning-info-node-body strong{color:var(--color-text-heading);text-overflow:ellipsis;white-space:nowrap;font-size:16px;font-weight:850;line-height:1.35;overflow:hidden}.learning-info-node.status-locked .learning-info-node-body strong{color:var(--color-text-subtle)}.learning-info-node-body p{color:var(--color-text-subtle);text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:14px;font-weight:650;line-height:1.45;overflow:hidden}.learning-info-node-tools{flex-wrap:wrap;gap:6px;min-width:0;display:flex}.learning-info-node-tools span{background:var(--color-surface-muted-translucent);color:var(--color-text-subtle);border-radius:7px;padding:5px 9px;font-size:12px;font-weight:800;line-height:1}.learning-info-empty{border:1px dashed var(--color-border-strong);border-radius:var(--radius-lg);color:var(--color-text-muted);align-items:start;gap:12px;margin-top:10px;padding:22px;display:grid}.learning-info-empty p{margin:0;font-size:14px;font-weight:650;line-height:1.6}.learning-sidebar-panel{border-left:1px solid var(--color-border);color:var(--color-text);width:auto;min-width:0;height:100vh;padding:20px 16px;font-family:Inter,system-ui,-apple-system,sans-serif;position:sticky;top:0;overflow:hidden auto}.roadmap-sidebar{background:var(--color-background)}.tutor-digest-sidebar{background:var(--color-surface);flex-direction:column;width:45vw;min-width:400px;max-width:720px;padding:0;display:flex;overflow:hidden}.material-panel-header{border-bottom:1px solid var(--color-border);flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 16px 12px;display:flex}.material-panel-title-row{align-items:center;gap:8px;min-width:0;display:flex}.material-panel-icon{color:var(--color-text-subtle);flex-shrink:0}.material-panel-title{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:14px;font-weight:600;overflow:hidden}.material-panel-header-actions{flex-shrink:0;align-items:center;gap:4px;display:flex}.material-panel-close{border-radius:var(--radius-sm);color:var(--color-text-subtle);cursor:pointer;height:28px;transition:all var(--motion-duration-standard) var(--motion-ease-standard);flex-shrink:0;width:28px;padding:0}.material-panel-close:hover{background:var(--color-background);color:var(--color-text)}.material-panel-sources{border-bottom:1px solid var(--color-border);flex-shrink:0}.material-panel-source-card{border-bottom:1px solid var(--color-border);color:var(--color-text);min-width:0;height:60px;transition:background var(--motion-duration-standard) var(--motion-ease-standard);align-items:center;gap:16px;padding-left:16px;padding-right:16px;text-decoration:none;display:flex}.material-panel-source-card:hover{background:var(--color-background);text-decoration:none}.material-panel-source-kind{color:var(--color-text-subtle);flex-shrink:0;display:flex}.material-panel-source-kind--file{background:var(--color-danger-surface);border-radius:var(--radius-md);color:var(--color-danger);letter-spacing:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:11px;font-weight:700}.material-panel-source-kind--youtube{color:var(--color-danger-hover)}.material-panel-source-name{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:16px;font-weight:650;overflow:hidden}.material-panel-source-copy{flex-direction:column;flex:auto;gap:4px;min-width:0;display:flex}.material-panel-source-size{color:var(--color-text-subtle);font-size:13px;line-height:1.3}.material-panel-source-action{color:var(--color-text-subtle);flex-shrink:0;width:20px;height:20px;margin-left:auto}.tutor-digest-sidebar__content{color:var(--color-text);flex:auto;min-width:0;min-height:0;padding:28px 32px 40px;font-size:15px;line-height:1.75;overflow:hidden auto}.sidebar-header{margin:0 0 20px;padding:0}.sidebar-title-row{align-items:center;gap:8px;width:100%;min-width:0;min-height:51px;margin:-4px 0 0;display:flex}.sidebar-title{color:var(--color-text);font-family:var(--font-display-cjk);white-space:normal;flex:auto;min-width:0;font-size:17px;font-style:normal;font-weight:400;line-height:25.5px;overflow:visible}.sidebar-collapse-btn{border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;height:28px;transition:background var(--motion-duration-standard) var(--motion-ease-standard), color var(--motion-duration-standard) var(--motion-ease-standard), transform var(--motion-duration-standard) var(--motion-ease-standard);background:0 0;border:0;flex:none;justify-content:center;align-items:center;width:28px;padding:0;display:flex}.sidebar-collapse-btn:hover{background:var(--color-border);color:var(--color-text)}.sidebar-collapse-btn:active{transform:scale(.94)}.sidebar-collapse-btn:focus-visible{outline:2px solid var(--color-brand-border);outline-offset:2px}.sidebar-tabs{background:var(--color-surface-pressed);border-radius:var(--radius-md);gap:4px;width:100%;height:37px;margin:12px 0 14px;padding:3px;display:flex}.roadmap-sidebar .sidebar-tab{border-radius:var(--radius-sm);color:var(--color-text-subtle);height:31px;transition:background-color var(--motion-duration-standard) var(--motion-ease-action), color var(--motion-duration-standard) var(--motion-ease-action), box-shadow var(--motion-duration-standard) var(--motion-ease-action);flex:1 1 0;padding:6px 0;font-size:12.5px;font-weight:500;line-height:18.75px;display:block}.roadmap-sidebar .sidebar-tab:not(.sidebar-tab--active):hover{background:var(--color-surface-glass-light);color:var(--color-text-muted)}.roadmap-sidebar .sidebar-tab--active,.roadmap-sidebar .sidebar-tab--active:hover{background:var(--color-surface);box-shadow:0 1px 3px var(--color-shadow-soft);color:var(--color-text);font-weight:600}.tutor-digest-material-select{gap:6px;margin:0 0 20px;display:grid}.tutor-digest-material-select>span{color:var(--color-text-subtle);font-size:11px;line-height:16px}.tutor-digest-material-select select{appearance:none;background:var(--color-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2378716c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 9px center;border:1px solid var(--color-border-strong);color:var(--color-text-emphasis);cursor:pointer;font:inherit;text-overflow:ellipsis;white-space:nowrap;border-radius:7px;width:100%;max-width:100%;height:34px;padding:0 28px 0 9px;font-size:12px;overflow:hidden}.tutor-digest-material-select select:focus-visible{border-color:var(--color-focus);outline:2px solid var(--color-text-subtle-translucent);outline-offset:1px}.sidebar-progress-label{color:var(--color-text-subtle);margin:0 0 6px;font-size:12px;font-weight:400;line-height:18px}.sidebar-progress-bar{background:var(--color-surface-pressed);border-radius:2px;width:100%;height:4px;overflow:hidden}.sidebar-progress-fill{background:var(--color-success);border-radius:2px;height:4px}.sidebar-slide-deck-cta{flex-direction:column;gap:6px;width:100%;height:128px;padding:12px 16px 4px;display:flex}.sd-trigger,.sidebar-cert-btn{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text-secondary);justify-content:center;align-items:center;gap:6px;width:100%;display:flex}.sd-trigger{box-shadow:var(--shadow-surface-contact);color:var(--color-text);gap:8px;height:36px;padding:0 14px;font-size:12px;font-weight:500;line-height:18px}.sidebar-cert-btn{height:32px;padding:8px 12px;font-size:13px;font-weight:500;line-height:13px}.sidebar-nodes{flex-direction:column;width:100%;min-height:0;display:flex}.sidebar-node-row{gap:10px;width:100%;min-height:40px;display:flex}.sidebar-node-row--active .sidebar-node-line{background:var(--color-accent)}.sidebar-node-row--mastered .sidebar-node-line,.sidebar-node-row--skipped .sidebar-node-line{background:var(--color-success)}.sidebar-node-row--clickable{cursor:pointer}.sidebar-node-track{flex-direction:column;flex:none;align-items:center;width:18px;display:flex}.sidebar-node-dot{background:var(--color-background);border:2px solid var(--color-border-strong);color:var(--color-text-inverse);border-radius:50%;flex:none;justify-content:center;align-items:center;width:18px;height:18px;font-size:10px;font-weight:700;line-height:1;display:flex}.sidebar-node-dot--mastered{background:var(--color-success);border-color:var(--color-success)}.sidebar-node-dot--active{background:var(--color-accent);box-shadow:0 0 0 3px var(--color-warning-translucent);border:0}.sidebar-node-dot--locked{border-style:dashed}.sidebar-node-dot--skipped{background:var(--color-surface-disabled);color:var(--color-text-secondary);border:0}.sidebar-node-line{background:var(--color-surface-disabled);flex:1 1 0;width:2px;min-height:16px}.sidebar-node-line--completed{background:var(--color-success)}.sidebar-node-info{flex-flow:wrap;flex:1 1 0;align-items:baseline;gap:4px 6px;min-width:0;padding:0 0 12px;display:flex}.sidebar-node-title{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;flex:0 auto;min-width:0;max-width:100%;font-size:13px;font-weight:500;line-height:18px;overflow:hidden}.sidebar-node-row--skipped .sidebar-node-info{flex-direction:column;align-items:flex-start;gap:3px}.sidebar-node-status{background:var(--color-surface-pressed);border-radius:var(--radius-pill);color:var(--color-text-subtle);padding:0 9px;font-size:11px;line-height:18px;display:inline-flex}.sidebar-node-desc{color:var(--color-text-subtle);text-overflow:ellipsis;white-space:nowrap;flex:100%;min-width:0;font-size:12px;font-weight:400;line-height:16px;overflow:hidden}.sidebar-node-tags{flex:100%;gap:6px;min-width:0;display:flex;overflow:hidden}.sidebar-node-tag{background:var(--color-surface-tag);border-radius:var(--radius-sm);color:var(--color-text-subtle);cursor:pointer;flex:none;align-items:center;gap:3px;min-width:0;max-width:104px;height:15px;padding:2px 8px;font-size:11px;font-weight:400;line-height:11px;display:flex;overflow:hidden}.sidebar-node-tag:not(:disabled):hover{background:var(--color-brand-surface);color:var(--color-brand-text)}.sidebar-node-tag:disabled{cursor:not-allowed;opacity:.48}.sidebar-node-tag--warning{background:var(--color-warning-translucent);color:var(--color-warning-text)}.sidebar-node-tag-spinner{animation:.9s linear infinite node-tag-spin}@keyframes node-tag-spin{to{transform:rotate(360deg)}}.sidebar-node-tag span{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.sidebar-node-tag svg{flex:none}.node-mm-backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:1400;background:#f5f5f0ad;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.node-mm-float{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:0 18px 45px var(--color-shadow-elevated);flex-direction:column;width:min(86vw,1120px);max-width:1120px;height:min(78vh,720px);min-height:440px;display:flex;overflow:hidden}.node-mm-header{background:var(--color-surface-subtle);border-bottom:1px solid var(--color-border);flex:none;justify-content:space-between;align-items:center;gap:16px;height:56px;padding:0 18px 0 22px;display:flex}.node-mm-header h2{color:var(--color-text-emphasis);text-overflow:ellipsis;white-space:nowrap;min-width:0;margin:0;font-size:18px;font-weight:650;line-height:1.2;overflow:hidden}.node-mm-actions{flex:none;align-items:center;gap:8px;display:flex}.node-mm-action-btn,.node-mm-icon-btn{color:var(--color-text-subtle);height:30px;transition:background-color var(--motion-duration-standard) var(--motion-ease-action), color var(--motion-duration-standard) var(--motion-ease-action), opacity var(--motion-duration-standard) var(--motion-ease-action);border-radius:7px;justify-content:center;align-items:center;gap:5px;display:inline-flex}.node-mm-action-btn{padding:0 9px;font-size:12px;font-weight:500;text-decoration:none}.node-mm-icon-btn{width:30px;padding:0}.node-mm-action-btn:not(:disabled):hover,.node-mm-icon-btn:not(:disabled):hover{background:var(--color-surface-hover-translucent);color:var(--color-text)}.node-mm-action-btn:disabled,.node-mm-icon-btn:disabled,.node-mm-action-btn--disabled{cursor:not-allowed;opacity:.42}.node-mm-body{background:var(--color-surface);flex:auto;min-height:0;display:flex;overflow:hidden}.node-diagram-float{width:min(92vw,1600px);max-width:none;height:auto;min-height:0;max-height:92vh}.node-diagram-body{background:#f5f5f0;flex:0 auto;min-height:0;padding:0;overflow:hidden auto}.node-diagram-preview{background:#f5f5f0;flex:0 auto;justify-content:center;align-items:center;min-width:0;min-height:0;display:flex;overflow:visible}.node-diagram-image{background:#f5f5f0;width:100%;max-width:100%;height:auto;max-height:none;display:block}.node-diagram-empty{color:var(--color-text-subtle);flex:auto;justify-content:center;align-items:center;font-size:13px;display:flex}.node-mm-preview{flex:auto;min-width:0;min-height:0;overflow:auto}.node-mm-svg{width:100%;min-width:860px;height:100%;min-height:430px;display:block}.node-mm-link{fill:none}.node-mm-label{color:var(--color-text-muted);overflow-wrap:anywhere;align-items:center;height:100%;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:13px;font-weight:400;line-height:1.45;display:flex;overflow:hidden}.node-mm-map-node--toggleable{cursor:pointer;outline:none}.node-mm-map-node--toggleable .node-mm-label{cursor:pointer;transition:color var(--motion-duration-standard) var(--motion-ease-action)}.node-mm-map-node--toggleable:hover .node-mm-label,.node-mm-map-node--toggleable:focus-visible .node-mm-label{color:var(--color-text)}.node-mm-label-root{color:var(--color-text-muted);font-size:13px;font-weight:400}.node-mm-label strong{color:var(--color-text);font-weight:700}.node-mm-node-line,.node-mm-node-joint,.node-mm-node-start,.node-mm-node-toggle-mark{vector-effect:non-scaling-stroke}.node-mm-node-joint,.node-mm-node-toggle-mark{transition:opacity var(--motion-duration-standard) var(--motion-ease-action), stroke-width var(--motion-duration-standard) var(--motion-ease-action)}.node-mm-node-toggle-mark{stroke-linecap:round;stroke-width:1.25px}.node-mm-map-node--toggleable:hover .node-mm-node-joint,.node-mm-map-node--toggleable:focus-visible .node-mm-node-joint{stroke-width:2px}.node-mm-map-node--toggleable:hover .node-mm-node-toggle-mark,.node-mm-map-node--toggleable:focus-visible .node-mm-node-toggle-mark{stroke-width:1.7px}@media (width<=720px){.node-mm-backdrop{align-items:flex-end;padding:12px}.node-mm-float{border-radius:14px;width:100%;height:min(82vh,680px);min-height:380px}.node-diagram-float{width:100%;height:auto;min-height:0;max-height:92vh}.node-mm-header{height:52px;padding:0 12px 0 16px}.node-mm-header h2{font-size:16px}}.sidebar-notes-container{width:100%;min-height:100px}.notes-list{flex-direction:column;gap:2px;width:100%;min-height:0;display:flex}.roadmap-sidebar .notes-list__row{border-radius:var(--radius-md);text-align:left;background:0 0;border:0;gap:10px;width:100%;padding:10px 8px;display:flex}.notes-list__row--clickable{cursor:pointer}.notes-list__row--clickable:hover{background:var(--color-surface-hover-translucent)}.notes-list__row--locked{cursor:not-allowed}.notes-list__row--locked .notes-list__title,.notes-list__row--locked .notes-list__preview,.notes-list__row--locked .sidebar-node-dot{color:var(--color-text-subtle)}.notes-list__leading{flex:0 0 18px;width:18px;padding:1px 0 0;display:block}.notes-list__content{width:calc(100% - 28px);min-width:0;display:block}.notes-list__title{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;min-height:0;font-size:13px;font-weight:500;line-height:18px;display:block;overflow:hidden}.notes-list__preview{color:var(--color-text-subtle);text-overflow:ellipsis;white-space:nowrap;min-height:0;margin:2px 0 0;font-size:12px;font-weight:400;line-height:17px;display:block;overflow:hidden}.node-detail{flex-direction:column;gap:0;width:100%;display:flex}.node-detail__nav{justify-content:space-between;align-items:center;width:100%;margin:0 0 16px;display:flex}.node-detail__nav-btn{color:var(--color-text-subtle);align-items:center;gap:3px;padding:4px 2px;font-size:12.5px;font-weight:500;line-height:18.75px;display:flex}.node-detail__nav-btn--accent{color:var(--color-text-subtle)}.node-detail__header{align-items:center;gap:8px;width:100%;margin:0 0 14px;display:flex}.node-detail__title{color:var(--color-text);min-width:0;margin:0;font-size:15px;font-weight:600;line-height:19.5px}.node-detail__section{width:100%;margin:0 0 20px}.roadmap-sidebar .node-detail__section-toggle{border-bottom:1px solid var(--color-border);color:var(--color-text);justify-content:space-between;align-items:center;width:100%;height:23.5px;min-height:0;margin:0 0 10px;padding:0 0 6px;display:flex}.node-detail__section-label{color:var(--color-text-subtle);font-size:11px;font-weight:600;line-height:16.5px}.roadmap-sidebar .node-detail__section-toggle .node-detail__section-label{color:var(--color-text-subtle)}.node-detail__section-chevron{color:var(--color-text-subtle);transition:transform .16s;transform:rotate(-90deg)}.node-detail__section-chevron--expanded{transform:rotate(0)}.node-detail__summary{color:var(--color-text-secondary);overflow-wrap:anywhere;width:100%;font-size:13px;font-weight:400;line-height:21.45px}.node-detail__empty{color:var(--color-text-subtle);padding:8px 0;font-size:13px;font-style:italic;font-weight:400;line-height:19.5px}.node-detail__section>.node-detail__section-label{border-bottom:1px solid var(--color-border);width:100%;margin:0 0 10px;padding:0 0 6px;display:block}.node-detail__summary .markdown-content{gap:0;display:block}.node-detail__summary h2,.node-detail__summary h3,.node-detail__summary h4{color:var(--color-text);margin:0 0 6px;font-size:13px;font-weight:600;line-height:17.55px}.node-detail__summary p{color:var(--color-text-secondary);margin:0 0 8px;font-size:13px;font-weight:400;line-height:21.45px}.node-detail__summary ul,.node-detail__summary ol{margin:0 0 14px;padding-left:16px}.node-detail__summary li{color:var(--color-text-secondary);margin:0 0 3px;padding:0;font-size:13px;font-weight:400;line-height:20.8px}.node-detail__summary strong{color:var(--color-text-emphasis);font-weight:600}.note-editor{width:100%}.note-editor__field{background:var(--color-background);border:1px solid var(--color-border);border-radius:var(--radius-lg);min-height:122px;overflow:visible}.note-editor__textarea{color:var(--color-text-secondary);resize:none;background:0 0;border:0;outline:0;width:100%;height:120px;min-height:120px;padding:12px;font-family:inherit;font-size:13.5px;font-weight:400;line-height:21.6px;display:block;overflow:hidden}.note-editor__textarea::placeholder{color:var(--color-text-subtle);opacity:1;font-style:italic}.note-editor__status{min-height:20px;padding:6px 4px 0}.sidebar-empty{border:1px dashed var(--color-border-strong);border-radius:var(--radius-md);color:var(--color-text-muted);gap:10px;padding:18px;display:grid}.sidebar-empty p{margin:0;font-size:13px;line-height:1.55}.composer{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-surface-contact);max-width:var(--chat-content-max-width);flex:none;width:100%;min-width:0;min-height:92px;margin:0 auto;padding:8px 16px;position:relative}.composer--disabled textarea{color:var(--color-text-subtle);cursor:not-allowed;opacity:1;-webkit-text-fill-color:var(--color-text-subtle);background:0 0}.composer--disabled button{cursor:not-allowed}.composer--disabled .composer-tools button{opacity:.55}.composer-dock{background:var(--color-surface);flex:none;padding:0 24px 18px}.composer-dock--empty{padding:12px 24px 20px}.composer textarea{color:var(--color-code-background-strong);resize:none;border:0;outline:0;width:100%;height:38px;min-height:38px;padding:2px 0;font-size:15px;font-weight:400;line-height:1.4;transition:height .12s;display:block;overflow:hidden}.composer textarea::placeholder{color:var(--color-text-subtle)}.chat-file-tags{flex-wrap:wrap;gap:6px;padding:4px 0 6px;display:flex}.chat-file-tag{background:var(--color-background);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);align-items:center;gap:6px;max-width:220px;min-height:26px;padding:4px 6px 4px 8px;font-size:12px;line-height:1;display:flex}.chat-file-tag--error{background:var(--color-accent-surface);border-color:var(--color-warning-border);color:var(--color-accent-text)}.chat-file-tag-icon,.chat-file-tag-loading{flex:none}.chat-file-tag-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;max-width:120px;overflow:hidden}.chat-file-tag-size{color:var(--color-text-subtle);white-space:nowrap;flex:none;font-size:11px}.chat-file-tag--error .chat-file-tag-size{color:var(--color-danger-hover)}.chat-file-tag-remove{border-radius:50%;flex:none;width:16px;height:16px;padding:0;color:var(--color-text-subtle)!important}.chat-file-tag-remove:hover:not(:disabled){background:var(--color-surface-pressed)!important;color:var(--color-code-background-strong)!important}.chat-file-tag-remove:disabled{cursor:not-allowed;opacity:.45}.chat-file-tag-loading{animation:.8s linear infinite file-tag-spin}@keyframes file-tag-spin{to{transform:rotate(360deg)}}.composer-toolbar{flex-flow:row;justify-content:space-between;align-items:center;gap:14px;min-width:0;height:36px;display:flex}.composer-tools,.composer-submit{flex-wrap:nowrap;align-items:center;gap:16px;min-width:0;display:flex}.composer-submit{flex:none;justify-content:flex-end;width:auto;min-width:0;margin-left:auto}.composer-tools{scrollbar-width:none;flex:auto;width:auto;overflow-x:auto}.composer-tools::-webkit-scrollbar{display:none}.composer-tools button{color:var(--color-text-subtle);flex:none;min-height:32px}.composer-tools .composer-attach-button{border-radius:var(--radius-md);color:var(--color-text-subtle);height:28px;min-height:28px;transition:color var(--motion-duration-standard), background var(--motion-duration-standard);background:0 0;width:28px;padding:0}.composer-tools .composer-attach-button:hover:not(:disabled){background:var(--color-surface-strong);color:var(--color-text-secondary)}.composer-tools .composer-attach-button svg{width:15px;height:15px}.empty-composer{max-width:var(--chat-content-max-width);min-height:92px;width:min(var(--chat-content-max-width), 100%);align-self:center;margin:0 auto;padding:0}.empty-composer textarea{height:44px;min-height:44px;padding:12px 16px 8px;font-size:15px;font-weight:400;line-height:24px;overflow:hidden}.empty-composer .chat-file-tags{padding:8px 12px 4px}.empty-composer .composer-toolbar{min-height:46px;padding:6px 12px 8px}.empty-composer .composer-tools,.empty-composer .composer-submit{gap:6px}.empty-composer .composer-attach-button{border-radius:var(--radius-md);width:28px;height:28px;min-height:28px}.empty-composer .composer-attach-button svg{width:15px;height:15px}.empty-composer .composer-submit>span{gap:5px;font-size:11px;font-weight:400}.empty-composer .composer-submit>span svg{width:14px;height:14px}.empty-composer .send-button{box-shadow:none;width:32px;height:32px}.empty-composer .send-button svg{width:16px;height:16px}.composer-submit span{color:var(--color-text-subtle);white-space:nowrap;align-items:center;gap:8px;font-size:13px;font-weight:700;display:inline-flex}.send-button{border-radius:var(--radius-pill);box-shadow:0 6px 16px var(--color-shadow-subtle);color:var(--color-text-disabled);width:36px;height:36px;background:var(--color-surface)!important;border:1px solid var(--color-border-subtle)!important}.send-button:not(:disabled):hover{color:var(--color-accent-strong)}.stop-button{color:var(--color-text-inverse);background:var(--color-control-primary-hover)!important;border-color:var(--color-control-primary-hover)!important}.stop-button:not(:disabled):hover{color:var(--color-text-inverse);background:var(--color-control-primary-hover)!important}.stop-button-icon{background:var(--color-surface);border-radius:3px;width:13px;height:13px;display:block}.send-button:disabled{cursor:not-allowed;opacity:.45}.digest-sidebar{background:var(--color-surface);border-left:1px solid var(--color-border);color:var(--color-text-heading);flex-direction:column;min-width:0;height:100vh;display:flex;overflow:hidden}.digest-sidebar-header{border-bottom:1px solid var(--color-border);flex:none;justify-content:space-between;align-items:center;min-height:56px;padding:0 24px;display:flex}.digest-sidebar-header>div{align-items:center;gap:10px;min-width:0;display:flex}.digest-sidebar-header svg{color:var(--color-text-subtle)}.digest-sidebar-header h2{color:var(--color-text-heading);margin:0;font-size:16px;font-weight:650}.digest-sidebar-header button{color:var(--color-text-subtle);justify-content:center;width:34px;height:34px}.digest-sidebar-body{flex-direction:column;flex:auto;gap:18px;min-height:0;padding:24px 32px 36px;display:flex;overflow:hidden auto}.digest-sidebar-body--embedded{flex:none;min-height:auto;padding:0 0 28px;overflow:visible}.tutor-digest-sidebar__body{flex-direction:column;gap:0;min-width:0;padding:0;display:flex}.digest-video-section{min-width:0;margin-bottom:24px;display:grid}.digest-video-heading{align-items:center;gap:12px;min-width:0;display:flex}.digest-video-heading strong{color:var(--color-text-heading);text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:16px;font-weight:650;line-height:1.3;display:block;overflow:hidden}.youtube-logo{background:var(--color-danger-hover);border-radius:5px;flex:none;justify-content:center;align-items:center;width:26px;height:18px;display:flex}.youtube-logo:after{border-bottom:5px solid #0000;border-left:8px solid var(--color-surface);content:"";border-top:5px solid #0000;margin-left:2px}.digest-video-frame{aspect-ratio:16/9;background:var(--color-surface-inverse);border-radius:var(--radius-lg);width:100%;overflow:hidden}.digest-video-frame iframe{border:0;width:100%;height:100%;display:block}.digest-summary-pending{color:var(--color-text-muted);margin:0;font-size:15px;font-weight:500;line-height:1.7}.digest-empty-state{border:1px dashed var(--color-border-strong);border-radius:var(--radius-md);color:var(--color-text-muted);justify-items:start;gap:12px;margin-top:18px;padding:28px;display:grid}.digest-empty-state svg{color:var(--color-accent-strong)}.digest-empty-state h3{color:var(--color-text-heading);margin:0;font-size:18px;font-weight:650}.digest-empty-state p{margin:0;font-size:14px;font-weight:400;line-height:1.7}.digest-markdown{color:var(--color-text-heading);overflow-wrap:anywhere;flex-direction:column;gap:14px;min-width:0;padding-bottom:4px;display:flex}.digest-markdown h2,.digest-markdown h3,.digest-markdown h4{color:var(--color-text-strong);margin:12px 0 0;font-weight:650;line-height:1.35}.digest-markdown h2{font-size:18px}.digest-markdown h3{font-size:16px}.digest-markdown h4{font-size:15px}.digest-markdown p,.digest-markdown li{color:var(--color-text);overflow-wrap:anywhere;min-width:0;font-size:16px;font-weight:400;line-height:1.72}.digest-markdown p{margin:0}.digest-markdown hr{background:var(--color-surface-pressed);border:0;width:100%;height:1px;margin:18px 0}.digest-markdown ul{flex-direction:column;gap:10px;margin:0;padding-left:22px;list-style:outside;display:flex}.digest-markdown .digest-outline-markdown ul{padding-left:0;list-style:none}.digest-markdown code{background:var(--color-surface-muted);color:var(--color-text);overflow-wrap:anywhere;white-space:normal;border:0;border-radius:5px;padding:2px 7px;font-family:SF Mono,JetBrains Mono,Fira Code,ui-monospace,monospace;font-size:13px}.digest-markdown strong{color:var(--color-text-strong);font-weight:650}.digest-outline{border-top:1px solid var(--color-border-subtle);flex-direction:column;gap:14px;min-width:0;padding-top:18px;display:flex}.digest-outline h3{color:var(--color-text-strong);margin:0;font-size:17px;font-weight:650;line-height:1.35}.digest-outline-list{flex-direction:column;gap:11px;margin:0;padding-left:20px;list-style:outside;display:flex}.outline-item{color:var(--color-text-subtle);padding-left:2px}.outline-item::marker{color:var(--color-text-subtle)}.outline-locator{background:var(--color-surface-muted);color:var(--color-text-heading);white-space:nowrap;border-radius:5px;margin-right:10px;padding:2px 8px;font-family:SF Mono,JetBrains Mono,Fira Code,ui-monospace,monospace;font-size:.94em;font-weight:650;line-height:1.35;display:inline-block}.outline-summary{color:var(--color-text-heading);font-size:15px;font-weight:500;line-height:1.55}@media (width>=721px) and (width<=1000px){.learning-page,.learning-page.learning-sidebar-open,.learning-page.learning-sidebar-open.tutor-digest-sidebar-open{grid-template-columns:260px minmax(0,1fr)}.session-sidebar{padding:0}.learning-page.session-sidebar-collapsed,.learning-page.session-sidebar-collapsed.learning-sidebar-open,.learning-page.session-sidebar-collapsed.learning-sidebar-open.tutor-digest-sidebar-open{grid-template-columns:52px minmax(0,1fr)}.learning-sidebar-panel{box-shadow:var(--shadow-side-panel-float);z-index:40;width:340px;height:100vh;position:fixed;inset:0 0 0 auto}}@media (width<=720px){.learning-page,.learning-page.learning-sidebar-open,.learning-page.learning-sidebar-open.tutor-digest-sidebar-open{grid-template-columns:minmax(0,1fr)}.session-sidebar{display:none}.learning-sidebar-panel{box-shadow:var(--shadow-side-panel-float);z-index:40;width:min(320px,100vw);max-width:100vw;height:100vh;padding:20px 22px 28px;position:fixed;inset:0 0 0 auto}.tutor-digest-sidebar{width:100vw;min-width:0;padding:0}.sidebar-title{font-size:21px}.sidebar-slide-deck-cta{margin-bottom:24px}.course-header{flex-direction:column;align-items:flex-start;gap:16px;min-height:auto;padding:20px;position:static}.course-actions{flex-wrap:wrap;gap:6px;width:100%;min-width:0;padding-bottom:4px;overflow-x:hidden}.progress-pill{font-size:16px}.icon-button{flex:none;width:32px;height:32px}.pro-button{min-width:58px;height:36px;padding:0 12px;font-size:18px}.lesson-tabs{gap:26px;height:58px;padding:0 20px;position:static;overflow-x:auto}.lesson-tab{flex:none;font-size:19px}.classroom-shell{min-height:auto;padding:24px 0}.chat-window-content{gap:16px;padding:0 16px 10px}.user-bubble{border-radius:18px;padding:12px 16px;font-size:15px}.tutor-message p,.tutor-message .lead{word-break:break-word;font-size:15px}.material-card{grid-template-columns:auto minmax(0,1fr);gap:12px;padding:14px 16px 12px}.material-card button{white-space:normal;grid-column:1/-1;justify-content:flex-start;width:100%;min-width:0}.material-card strong{font-size:15px}.material-card small,.material-digest-status span{font-size:13px}.material-digest-status{min-height:42px;padding:0 16px}.material-digest-content{padding:18px}.material-digest-content h2{font-size:18px}.material-digest-content p,.material-digest-content li{font-size:15px}.survey-panel{padding:12px 14px}.survey-tabs{gap:2px;overflow-x:auto}.survey-tab{flex:none;padding:4px 10px;font-size:13px}.survey-panel h2{font-size:14px}.survey-option{gap:8px;padding:11px 12px}.survey-option-label,.survey-option-text{font-size:14px}.mastery-card{padding:18px}.mastery-card h2{font-size:18px}.render-heading,.mastery-card p{font-size:15px}.mastery-card{grid-template-columns:1fr}.render-table-scroll table{min-width:0}.render-table-scroll th,.render-table-scroll td{padding:8px 12px}.practice-header{flex-direction:column;align-items:flex-start;gap:16px}.journey-dock{flex-direction:row;align-items:center;margin:0;padding:10px 16px}.journey-dock h2{font-size:17px}.journey-dock p,.journey-dock button{font-size:13px}.journey-actions{flex-direction:row;align-items:center;width:auto}.composer{max-width:calc(100vw - 32px);min-height:142px;padding:18px;bottom:10px}.composer textarea{font-size:22px}.composer-toolbar{flex-direction:column;align-items:flex-start}.composer-tools,.composer-submit{justify-content:space-between;width:100%}.composer-submit span{font-size:15px}.render-chart-panel{padding:10px 8px 6px}.render-chart-canvas{height:300px}.render-chart-skeleton{height:316px}.render-chart-skeleton-bars{gap:10px;left:46px;right:18px}.empty-course-header{min-height:58px;padding:8px 12px}.empty-course-header h1{font-size:17px}.empty-classroom{justify-content:flex-start;max-width:100%;padding:24px 16px 8px;overflow-y:auto}.empty-experience{justify-content:flex-start;gap:24px;padding:0;overflow-y:auto}.empty-hero-logo,.empty-hero-logo svg{width:36px;height:36px}.empty-hero h2{font-size:20px}.empty-hero p{max-width:260px;font-size:13px}.empty-prompt-grid{flex-direction:column;align-items:stretch}.empty-prompt-grid button{white-space:normal;border-radius:14px;justify-content:flex-start;width:100%}.composer-dock--empty{padding:8px 12px calc(12px + env(safe-area-inset-bottom))}.empty-composer{max-width:100%;min-height:92px;padding:0;bottom:auto}.empty-composer textarea{height:44px;min-height:44px;padding:12px 16px 8px;font-size:15px}.empty-composer .composer-toolbar{flex-direction:row;align-items:center;min-height:46px;padding:6px 12px 8px}.empty-composer .composer-tools,.empty-composer .composer-submit{justify-content:flex-start;width:auto}.empty-composer .composer-submit{margin-left:auto}.empty-composer .composer-submit>span{display:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}