.library-hero,.module-header,.page-heading{margin-block-end:20px}.eyebrow{color:var(--accent-strong);letter-spacing:.08em;text-transform:uppercase;margin:0 0 4px;font-size:.78rem;font-weight:800}.library-hero h1,.module-header h1,.page-heading h1{letter-spacing:-.035em;margin:0;font-size:clamp(1.65rem,6vw,2.35rem);line-height:1.18}.library-hero p:last-child,.module-header p:last-child{color:var(--text-muted);margin:8px 0 0}.home-search-link,.review-banner,.continue-card{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);color:var(--text);align-items:center;gap:12px;padding:14px 16px;text-decoration:none;display:flex}.home-search-link>span:nth-child(2),.review-banner>span:first-child{flex:1;display:grid}.home-search-link small,.review-banner small{color:var(--text-muted)}.section-heading{justify-content:space-between;align-items:baseline;margin:28px 2px 10px;display:flex}.section-heading h2{margin:0;font-size:1.15rem}.section-heading span{color:var(--text-muted);font-size:.88rem}.module-grid,.question-list,.search-results ol{margin:0;padding:0;list-style:none}.favorite-list{gap:10px;margin:0;padding:0;list-style:none;display:grid}.queue-summary{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.queue-summary>div,.queue-start-card{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);gap:5px;padding:16px;display:grid}.queue-summary small,.queue-start-card span,.queue-rule{color:var(--text-muted)}.queue-rule{margin:14px 2px 20px;font-size:.88rem}.queue-start-card .button{margin-top:9px}.module-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.module-card{min-width:0}.module-card__link{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);min-height:132px;color:var(--text);gap:11px;padding:15px;text-decoration:none;display:grid}.module-card__heading{gap:2px;display:grid}.module-card__heading strong{text-overflow:ellipsis;font-size:1.03rem;line-height:1.25;overflow:hidden}.module-card__heading>span,.module-card__meta{color:var(--text-muted);font-size:.78rem}.module-card__progress{background:var(--surface-muted);border-radius:99px;align-self:end;height:5px;overflow:hidden}.module-card__progress span{background:var(--accent);min-width:2px;height:100%;display:block}.secondary-dashboard{gap:10px;margin-block-start:24px;display:grid}.review-banner{border-color:color-mix(in srgb, var(--accent) 38%, var(--border));background:color-mix(in srgb, var(--accent) 10%, var(--surface-raised))}.back-link{color:var(--accent-strong);align-items:center;margin:-8px 0 8px;text-decoration:none;display:inline-flex}.module-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-block:18px 24px;display:grid}.button{border-radius:var(--radius-sm);text-align:center;cursor:pointer;border:1px solid #0000;place-items:center;min-height:48px;padding:10px 16px;font-weight:750;text-decoration:none;display:inline-grid}.button--primary{background:var(--accent);color:var(--accent-text)}.button--secondary{border-color:var(--border);background:var(--surface-raised);color:var(--text)}.button.is-disabled{background:var(--surface-muted);color:var(--text-muted)}.filter-block{gap:12px;margin-bottom:14px;display:grid}.category-filters{scrollbar-width:thin;gap:8px;padding:2px 1px 6px;display:flex;overflow-x:auto}.filter-chip{border:1px solid var(--border);background:var(--surface-raised);color:var(--text);border-radius:999px;flex:none;padding:8px 14px}.filter-chip.is-active{border-color:var(--accent);background:var(--accent);color:var(--accent-text)}.status-filter{color:var(--text-muted);grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;display:grid}.status-filter select,.search-panel input,.search-panel select{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-raised);min-width:0;min-height:48px;color:var(--text);padding:9px 12px}.question-list{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);overflow:hidden}.question-row+.question-row{border-top:1px solid var(--border)}.question-row__link{color:var(--text);grid-template-columns:30px minmax(0,1fr) auto;align-items:center;gap:10px;padding:13px 14px;text-decoration:none;display:grid}.question-row__number{color:var(--text-muted);font-variant-numeric:tabular-nums}.question-row__body{gap:7px;min-width:0;display:grid}.question-row__body strong{line-height:1.4}.status-list{flex-wrap:wrap;gap:5px;display:flex}.status-chip{background:var(--surface-muted);color:var(--text-muted);border-radius:999px;padding:2px 7px}.status-chip--今日到期{background:color-mix(in srgb, var(--warning) 14%, var(--surface));color:var(--warning)}.status-chip--已收藏{background:color-mix(in srgb, var(--accent) 13%, var(--surface));color:var(--accent-strong)}.empty-state,.page-state,.search-hint{border:1px dashed var(--border);border-radius:var(--radius-md);color:var(--text-muted);text-align:center;padding:30px 18px}.search-panel{grid-template-columns:minmax(0,1fr) minmax(8rem,.35fr) auto;gap:8px;margin-block-end:22px;display:grid}.search-panel label{display:grid}.result-count{color:var(--text-muted);font-size:.88rem}.search-results ol{gap:10px;display:grid}.search-result{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);color:var(--text);gap:6px;padding:14px 16px;text-decoration:none;display:grid}.search-result small{color:var(--accent-strong);font-weight:650}.search-result>span{color:var(--text-muted);font-size:.9rem}.search-result mark{color:inherit;background:#f4c95d8c;border-radius:3px}@media (max-width:600px){.search-panel{grid-template-columns:minmax(0,1fr) minmax(7.5rem,.5fr)}.search-panel .button{grid-column:1/-1}}@media (min-width:760px){.module-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}.study-page{max-width:54rem;padding-bottom:42px;position:relative}.study-page.is-revealed{padding-bottom:130px}.study-toolbar{justify-content:space-between;align-items:center;gap:12px;display:flex}.favorite-button{border:1px solid var(--border);background:var(--surface-raised);color:var(--text);border-radius:999px;padding:8px 14px}.favorite-button.is-active{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 12%, var(--surface-raised));color:var(--accent-strong)}.question-header{border-bottom:1px solid var(--border);padding:18px 0 20px}.question-progress,.source-meta{color:var(--text-muted);flex-wrap:wrap;gap:6px 14px;font-size:.82rem;display:flex}.question-progress{color:var(--accent-strong);justify-content:space-between;font-weight:750}.question-header h1{letter-spacing:-.025em;margin:14px 0;font-size:clamp(1.55rem,6vw,2.4rem);line-height:1.3}.source-meta a{color:var(--accent-strong)}.content-updated,.readonly-warning{border-radius:var(--radius-sm);background:color-mix(in srgb, var(--warning) 12%, var(--surface-raised));color:var(--warning);margin:12px 0 0;padding:9px 12px;font-size:.86rem}.recall-stage{text-align:center;place-items:center;min-height:38dvh;padding:36px 0;display:grid}.recall-stage p{color:var(--text-muted)}.reveal-button{border-radius:var(--radius-md);background:var(--accent);width:min(100%,22rem);color:var(--accent-text);border:0;padding:14px 20px;font-size:1.05rem;font-weight:800}.answer-label{justify-content:space-between;align-items:baseline;gap:12px;margin:26px 0 12px;display:flex}.answer-label span{font-weight:800}.answer-label small{color:var(--text-muted)}.original-answer{overflow-wrap:anywhere;min-width:0;font-size:1.02rem;line-height:1.78}.original-answer--contained{max-width:100%;overflow-x:clip}.original-answer h2,.original-answer h3,.original-answer h4{margin:1.6em 0 .65em;line-height:1.35}.original-answer p,.original-answer ul,.original-answer ol{margin-block:.9em}.original-answer img{border-radius:var(--radius-sm);max-width:100%;height:auto;margin:18px auto;display:block}.original-answer img[data-image-state=unavailable]{border:1px dashed var(--border);background:var(--surface-muted);min-height:72px}.original-scroll-region{overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;max-width:100%;display:block;overflow-x:auto}.original-answer pre{border:1px solid var(--border);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--surface-muted) 76%, #000 4%);white-space:pre;padding:14px;font-size:.88rem;line-height:1.55}.original-answer code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.original-answer :not(pre)>code{background:var(--surface-muted);border-radius:4px;padding:2px 5px}.original-answer table{border-collapse:collapse;width:max-content;min-width:100%}.original-answer th,.original-answer td{border:1px solid var(--border);text-align:start;vertical-align:top;min-width:8rem;padding:10px 12px}.supplement-panel{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);margin-top:30px}.supplement-panel summary{color:var(--accent-strong);cursor:pointer;align-items:center;padding:13px 16px;font-weight:800;display:flex}.supplement-panel__body{padding:0 16px 16px}.session-complete{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);text-align:center;gap:12px;margin-top:28px;padding:16px;display:grid}.rating-dock{padding:9px 8px max(9px, env(safe-area-inset-bottom));border:1px solid var(--border);border-radius:var(--radius-md) var(--radius-md) 0 0;background:color-mix(in srgb, var(--surface-raised) 95%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:10;border-bottom:0;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:32px -8px -110px;display:grid;position:sticky;bottom:0;box-shadow:0 -8px 28px #0000001f}.rating-button{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);min-width:0;color:var(--text);place-items:center;gap:1px;padding:7px 4px;display:grid}.rating-button small{color:var(--text-muted);font-size:.68rem}.rating-button--remembered{border-color:var(--accent);background:var(--accent);color:var(--accent-text)}.rating-button--remembered small{color:var(--accent-text);opacity:.82}.undo-toast{right:16px;bottom:calc(82px + env(safe-area-inset-bottom));border-radius:var(--radius-md);color:#fff;z-index:40;background:#17211c;justify-content:space-between;align-items:center;gap:12px;max-width:32rem;margin-inline:auto;padding:8px 10px 8px 14px;display:flex;position:fixed;left:16px;box-shadow:0 10px 30px #0000004d}.undo-toast button{color:#9bd4b4;background:0 0;border:0;font-weight:800}@media (min-width:760px){.rating-dock{margin-inline:0}}.settings-page{max-width:48rem}.settings-section{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-raised);gap:12px;margin-bottom:18px;padding:16px;display:grid}.settings-section h2,.settings-section p{margin:0}.settings-section h2{font-size:1.05rem}.settings-section p,.setting-row small{color:var(--text-muted);font-size:.86rem}.setting-row{grid-template-columns:minmax(0,1fr) minmax(7rem,.35fr);align-items:center;gap:14px;display:grid}.setting-row>span{display:grid}.setting-row input,.setting-row select{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);min-width:0;min-height:48px;color:var(--text);padding:8px 10px}.settings-facts{gap:8px;margin:0;display:grid}.settings-facts>div{justify-content:space-between;gap:14px;display:flex}.settings-facts dt{color:var(--text-muted)}.settings-facts dd{margin:0;font-weight:700}.file-button{position:relative;overflow:hidden}.file-button input{opacity:0;width:1px;height:1px;position:absolute}.button--danger{color:#a63e35;background:0 0;border-color:#a63e35}.danger-zone{border-color:color-mix(in srgb, #a63e35 45%, var(--border))}.settings-message{border-radius:var(--radius-sm);background:var(--accent-strong);color:var(--accent-text);text-align:center;padding:12px 14px;position:sticky;bottom:10px}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--surface:#f4f7f5;--surface-raised:#fff;--surface-muted:#e8efeb;--text:#15231b;--text-muted:#526159;--border:#cdd8d1;--accent:#2f6d50;--accent-strong:#22533c;--accent-text:#fff;--warning:#8b5a16;--radius-sm:10px;--radius-md:16px;--content-max:72rem;--layer-nav:20}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}:root:not([data-theme=light]){--surface:#101714;--surface-raised:#18221d;--surface-muted:#202d27;--text:#edf4ef;--text-muted:#adbbb2;--border:#34453b;--accent:#70b18c;--accent-strong:#8bc6a2;--accent-text:#0e1a13;--warning:#e0ad5d}}:root[data-theme=dark]{--surface:#101714;--surface-raised:#18221d;--surface-muted:#202d27;--text:#edf4ef;--text-muted:#adbbb2;--border:#34453b;--accent:#70b18c;--accent-strong:#8bc6a2;--accent-text:#0e1a13;--warning:#e0ad5d}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:var(--surface);color:var(--text);text-rendering:optimizelegibility;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.6;overflow:hidden}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.touch-target{min-block-size:48px;min-inline-size:48px}.app-shell{grid-template-rows:auto minmax(0,1fr) auto;height:100dvh;min-height:100vh;display:grid;overflow:hidden}.top-bar{padding:max(12px, env(safe-area-inset-top)) 16px 12px;border-bottom:1px solid var(--border);background:color-mix(in srgb, var(--surface-raised) 94%, transparent);z-index:var(--layer-nav)}.top-bar__title{max-width:var(--content-max);letter-spacing:-.01em;margin:0 auto 10px;font-size:1.1rem;font-weight:750}.global-search{max-width:var(--content-max);grid-template-columns:minmax(0,1fr) auto;gap:8px;margin:0 auto;display:grid}.global-search input{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);min-width:0;min-height:48px;color:var(--text);padding:10px 14px}.search-submit{border-radius:var(--radius-sm);background:var(--accent);color:var(--accent-text);border:0;padding:0 18px;font-weight:700}.app-main{overscroll-behavior-y:contain;min-height:0;overflow:hidden auto}.page{width:min(100%, var(--content-max));margin:0 auto;padding:24px 16px 40px}.placeholder-page h1{margin:0;font-size:clamp(1.7rem,7vw,2.4rem);line-height:1.2}.bottom-nav{padding:6px 8px max(6px, env(safe-area-inset-bottom));border-top:1px solid var(--border);background:var(--surface-raised);z-index:var(--layer-nav);grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;display:grid}.bottom-nav__item{border-radius:var(--radius-sm);color:var(--text-muted);text-align:center;place-items:center;padding:8px 4px;font-size:.82rem;font-weight:650;line-height:1.2;text-decoration:none;display:grid}.bottom-nav__item.is-active{background:var(--surface-muted);color:var(--accent-strong)}@media (min-width:760px){.top-bar{grid-template-columns:auto minmax(20rem,36rem);align-items:center;gap:24px;display:grid}.top-bar__title,.global-search{width:100%;margin:0}.bottom-nav{border:1px solid var(--border);border-radius:var(--radius-md) var(--radius-md) 0 0;border-bottom:0;width:min(100%,38rem);margin:0 auto}}@media (prefers-reduced-motion:no-preference){button,a{transition:background-color .14s,color .14s,transform 90ms}button:active,a:active{transform:scale(.98)}}