/* Shared visual system for the catalog and tool pages. */
:root{--bg:#f5f7fb;--paper:#fff;--ink:#182338;--muted:#59677e;--line:#e1e7f0;--accent:#305bc9;--accent-contrast:#fff;--peach:#9cb5ff;--symbol-bg:#edf2ff;--hover-bg:#f7f9ff;--note-bg:#f8faff;--shadow:0 4px 18px #15274706;--accent-soft:#edf2ff}
html[data-theme=dark]{--bg:#111827;--paper:#192335;--ink:#e9effb;--muted:#a7b5ca;--line:#334259;--accent:#a8bdff;--accent-contrast:#142344;--peach:#b0c3ff;--symbol-bg:#273957;--hover-bg:#1e2d45;--note-bg:#162134;--shadow:0 4px 20px #0002;--accent-soft:#263751}
body{font-size:15px;line-height:1.7}h1{font-size:clamp(28px,3vw,38px);font-weight:720;letter-spacing:-.8px}h2,h3{letter-spacing:-.2px}
.layout{grid-template-columns:224px minmax(0,1fr)}.sidebar{background:var(--paper);color:var(--ink);border-right:1px solid var(--line);padding:30px 20px}.brand{font-size:19px;letter-spacing:0;gap:10px}.mark,.tool-topbar .mark{border:0;border-radius:12px;background:#305bc9;color:#fff;font:700 25px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;box-shadow:0 4px 12px #305bc92b}.nav-label{color:var(--muted);margin:45px 12px 13px;letter-spacing:1px;font-size:11px}.nav{gap:6px}.nav a,.nav-shortcut{font:inherit;font-size:14px;padding:11px 12px;border-radius:9px;display:flex;align-items:center;gap:12px;min-height:44px}.nav-shortcut{border:0;background:none;color:var(--muted);text-align:left}.nav a:hover,.nav-shortcut:hover{background:var(--bg)}.nav a[aria-current],.nav-shortcut[aria-pressed=true]{background:var(--accent-soft);color:var(--accent);font-weight:650}.nav svg{width:19px;height:19px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.7}.sidebar-bottom{padding:18px 14px;background:var(--bg);border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:12px;line-height:1.8}.sidebar-bottom span{color:var(--ink);font-size:13px}
.main{max-width:1440px;padding:28px 40px 28px}.topbar{padding-bottom:20px;font-size:13px}.topbar .private{font-size:12px}.theme-control select{border-radius:8px}.heading{align-items:center;margin:32px 0 28px}.heading p:last-child{font-size:14px;margin-top:12px}.eyebrow{letter-spacing:1.2px;font-size:11px}.hero-note{display:flex;align-items:center;gap:12px;background:var(--accent-soft);border:1px solid var(--line);border-radius:12px;padding:14px 18px;color:var(--accent);max-width:230px;flex-shrink:0}.hero-note svg{width:25px;height:25px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.7}.hero-note strong{display:block;font-size:13px;font-weight:650}.hero-note span{display:block;color:var(--muted);font-size:11px}
.workspace{border:0;border-radius:0;background:transparent;overflow:visible}.section-bar{padding:0 0 17px;border:0}.section-bar h2{font-size:18px}.count{border:0;background:var(--paper);border-radius:20px;font-size:12px;padding:4px 12px}.catalog-controls{padding:20px 22px 10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);margin-bottom:22px}.search-label{font-size:12px;font-weight:600;color:var(--ink)}#tool-search{min-height:48px;background:var(--bg);border-radius:10px;padding:12px 15px;font-size:14px}.search-hint{font-size:11px;margin-top:7px}.filter-bar{margin-top:17px;align-items:center}.filter-button{border-color:transparent;border-radius:8px;color:var(--muted);background:transparent;font-size:12px;min-height:40px}.filter-button:hover{background:var(--bg)}.filter-button[aria-pressed=true]{background:var(--accent-soft);color:var(--accent);border-color:transparent;font-weight:650}.view-label{font-size:12px}.view-label select{border-radius:8px;font-size:12px}.catalog-meta{min-height:36px;font-size:11px}
.apps{padding:0;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.tool-card{background:var(--paper);border-radius:14px;border-color:var(--line);box-shadow:var(--shadow);transition:border-color .15s,box-shadow .15s,transform .15s}.tool-card:hover{background:var(--paper);border-color:var(--accent);box-shadow:0 9px 24px #305bc914;transform:translateY(-2px)}.app-card{display:flex;flex-direction:column;gap:16px;padding:22px;border-radius:14px}.card-header{display:flex;gap:12px;align-items:center;padding-right:25px}.app-symbol{width:43px;height:43px;border-radius:11px;flex-shrink:0;font:22px sans-serif;color:var(--accent);background:var(--symbol-bg)}.app-symbol svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.category-label{font-size:11px;font-weight:500;color:var(--muted)}.app-copy{display:flex;flex-direction:column;flex:1;width:100%;padding:0}.app-card h3{font-size:17px;font-weight:680;margin:0}.app-card p{margin-top:8px;font-size:12px;line-height:1.85;min-height:45px}.app-card .text-link{border:0;display:flex;align-items:center;justify-content:space-between;padding:16px 0 0;margin-top:auto;font-size:12px}.favorite-button{right:12px;top:18px;width:34px;height:34px;font-size:22px}.tool-card[data-category="传统文化"] .app-symbol{color:#9b5723;background:#fff2e2}.tool-card[data-category="效率工具"] .app-symbol{color:#17766c;background:#e8f7f2}.tool-card[data-category="开发工具"] .app-symbol{color:#7444b5;background:#f3ecff}html[data-theme=dark] .tool-card[data-category="传统文化"] .app-symbol{color:#f4c99b;background:#433326}html[data-theme=dark] .tool-card[data-category="效率工具"] .app-symbol{color:#9ddccd;background:#1c403b}html[data-theme=dark] .tool-card[data-category="开发工具"] .app-symbol{color:#d1b4ff;background:#372b50}
.workspace-note{padding:17px 0 0;background:none;border:0;font-size:12px}.offline-panel{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-top:18px;padding:16px 20px}.guide{margin-top:38px}.guide-top span{font-size:10px}.guide h2{font-size:18px}.principles{border:0;gap:16px}.principle,.principle+.principle{border:1px solid var(--line);background:var(--paper);border-radius:12px;padding:20px}.principle h3{font-size:14px}.principle p{font-size:12px}.step{margin-bottom:8px}.guide details{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:0 18px}.guide summary{font-size:13px}.footer{font-size:11px}
.secondary-button,.primary-button{border-radius:9px;font-size:13px;min-height:44px;transition:background .15s,border-color .15s}.secondary-button:hover:not(:disabled){background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.primary-button:hover:not(:disabled){filter:brightness(.94)}.tool-topbar{max-width:none;background:var(--paper);padding:20px max(24px,calc((100vw - 1120px)/2));}.tool-topbar .header-actions{gap:16px}.tool-main{max-width:1120px;padding:36px 28px}.tool-heading{margin-bottom:26px}.tool-heading h1{font-size:32px}.tool-heading>p:not(.eyebrow){font-size:14px;max-width:750px}.privacy-note{border:0;background:var(--accent-soft);color:var(--accent);padding:5px 10px;border-radius:6px;font-size:11px}.tool-panel{border-radius:14px;box-shadow:var(--shadow);padding:26px}.tool-panel h2{font-size:18px;font-weight:680}.field>label{font-size:13px}.field input,.field textarea,.field select{border-radius:9px;font-size:14px;min-height:44px}.tool-help{padding:0 18px;background:var(--paper);border:1px solid var(--line);border-radius:10px}.tool-help p{font-size:13px}.tool-footer{max-width:1120px;font-size:11px}.result-box{border-radius:10px}.tool-panel .field-hint{font-size:12px}
.video-drop{border:1px dashed var(--line);background:var(--bg);border-radius:12px;padding:18px}.video-drop.is-dragging{border-color:var(--accent);background:var(--accent-soft)}.video-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(260px,1fr);gap:24px;margin-top:8px}.video-view,.video-library{min-width:0}.video-stage{position:relative;aspect-ratio:16/9;background:#101521;border-radius:12px;overflow:hidden;display:grid;place-items:center}.video-stage video{display:block;width:100%;height:100%;max-height:440px;min-width:0;object-fit:contain}.video-placeholder{position:absolute;inset:0;display:grid;place-items:center;color:#c8d2e3;font-size:13px;pointer-events:none}.video-current{overflow-wrap:anywhere;margin-top:16px;font-size:16px}.video-details{margin-top:4px;overflow-wrap:anywhere}.video-progress{font-size:12px;font-variant-numeric:tabular-nums;color:var(--muted);margin-top:7px}.video-buttons{gap:8px;margin-top:14px}.video-buttons>button{font-size:12px;padding-inline:12px}.video-options{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:18px}.video-options .field{min-width:130px}.video-options .check-label{font-size:12px}.video-library{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:16px;align-self:start}.video-list-heading{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:14px}.video-list-heading h3{font-size:15px}.video-list-heading span{font-size:11px;color:var(--muted)}.video-navigation{margin-top:12px;gap:6px}.video-navigation>button{font-size:11px;padding-inline:9px;min-height:40px}.video-list{list-style:none;margin:14px 0 0;padding:0;max-height:420px;overflow:auto}.video-list li{display:flex;gap:4px;border:1px solid var(--line);border-radius:8px;margin-bottom:8px;background:var(--paper);min-width:0}.video-track{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px;text-align:left;border:0;background:none;color:var(--ink);padding:12px 10px;border-radius:7px}.video-track[aria-current=true]{background:var(--accent-soft);color:var(--accent)}.video-track-name{font-size:12px;overflow-wrap:anywhere;font-weight:550}.video-track-size{font-size:10px;color:var(--muted)}.video-remove{align-self:center;flex-shrink:0;border:0;background:none;color:var(--muted);font-size:11px;padding:8px;min-height:44px}.video-remove:hover{color:var(--error-ink)}#video-list-empty{margin-top:16px}
@media(min-width:1500px){.main{padding-inline:56px}}
@media(max-width:1200px){.apps{grid-template-columns:repeat(2,minmax(0,1fr))}.layout{grid-template-columns:205px minmax(0,1fr)}.main{padding-inline:30px}.hero-note{display:none}.principles{grid-template-columns:1fr}.principle,.principle+.principle{display:block}.principle p{grid-column:auto}}
@media(max-width:850px){.video-layout{grid-template-columns:1fr}.video-list{max-height:300px}.video-stage video{max-height:400px}.tool-topbar{padding:18px 24px}.tool-topbar .header-actions{gap:10px}}
@media(max-width:700px){.layout{display:block}.sidebar{position:static;height:auto;padding:18px 18px 0;border-right:0;border-bottom:1px solid var(--line)}.sidebar .brand{font-size:18px}.nav{display:flex;overflow:auto;margin-top:16px;gap:3px;padding-bottom:10px}.nav a,.nav-shortcut{flex-shrink:0;padding:9px 10px;font-size:12px;min-height:42px;border-radius:8px}.nav svg{width:16px;height:16px}.nav-label,.sidebar-bottom{display:none}.main{padding:20px 18px 24px}.topbar{font-size:11px;padding-bottom:16px}.heading{margin:25px 0}.heading p:last-child{font-size:13px;max-width:300px}h1{font-size:29px}.apps{grid-template-columns:1fr;gap:12px}.app-card{padding:20px;gap:12px}.card-header{gap:12px}.app-card h3{font-size:17px}.app-card p{min-height:0}.app-card .text-link{padding-top:14px}.catalog-controls{padding:16px 16px 8px;margin-bottom:16px}.filter-bar{align-items:stretch;gap:12px}.filter-button{min-height:44px}.category-filters{gap:4px}.view-label{justify-content:space-between;width:100%}.section-bar{padding-bottom:14px}.count{font-size:11px}.guide{margin-top:28px}.guide-top span{display:none}.principles{gap:10px}.tool-main{padding:28px 18px}.tool-topbar{padding:18px}.tool-heading h1{font-size:29px}.tool-panel{padding:20px 16px}.tool-topbar .brand{font-size:16px;flex-shrink:0}.tool-topbar .header-actions{gap:7px}.tool-favorite{font-size:11px;min-height:38px;padding:6px 9px}.back-link{font-size:11px}.tool-heading>p:not(.eyebrow){font-size:13px}.video-library{padding:14px}.video-drop{padding:14px}.video-stage{border-radius:9px}.video-buttons>button{flex:1 1 calc(50% - 8px)}.video-navigation>button{flex:1}.video-options{gap:14px}.video-current{font-size:15px}.tool-footer{padding-inline:18px}.footer{gap:15px}.header-actions{gap:10px}}
@media(prefers-reduced-motion:reduce){.tool-card,.secondary-button,.primary-button{transition:none}.tool-card:hover{transform:none}}
@media(max-width:700px){.nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible;gap:5px;padding-bottom:14px}.nav a,.nav-shortcut{min-width:0;justify-content:flex-start}.nav-shortcut{width:100%}}
@media(min-width:500px) and (max-width:700px){.nav{grid-template-columns:repeat(4,minmax(0,1fr))}}
.primary-button{color:var(--accent-contrast)}
#video-player:fullscreen{width:100vw;height:100vh;max-height:none;object-fit:contain;background:#000}
#video-player:-webkit-full-screen{width:100vw;height:100vh;max-height:none;object-fit:contain;background:#000}

/* Wide local player with one control bar inside the picture. */
body[data-app-id=video] .tool-main,body[data-app-id=video] .tool-footer{max-width:1840px;padding-inline:clamp(18px,2.3vw,40px)}
body[data-app-id=video] .tool-topbar{padding-inline:max(24px,calc((100vw - 1760px)/2))}
body[data-app-id=video] .tool-heading{margin-bottom:20px}
.video-import-header{display:flex;align-items:center;justify-content:space-between;gap:24px}.video-import-header .panel-description{margin-bottom:0}.video-import-header .video-drop{width:380px;max-width:100%;flex-shrink:0;padding:12px 14px}.video-import-header .field>label{font-size:12px}.video-layout{grid-template-columns:minmax(0,1fr) clamp(280px,23vw,360px);gap:24px}.video-stage{background:#080c14;isolation:isolate}.video-stage video{position:absolute;inset:0;max-height:none}.video-caption{margin-top:14px}.video-caption .video-current{margin-top:0}.video-autonext{margin-top:16px;font-size:12px}.video-list{max-height:65vh}
.video-controls{position:absolute;bottom:0;left:0;right:0;z-index:2;padding:40px 18px 14px;background:linear-gradient(transparent,#050912e8);color:#fff;display:grid;gap:8px;transition:opacity .18s}.video-seek-row{display:flex;align-items:center;gap:14px}.video-seek-row #video-progress{color:#eef3ff;font-size:11px;font-variant-numeric:tabular-nums;white-space:nowrap;margin:0}.video-controls input[type=range]{padding:0;min-width:0;accent-color:#adc2ff;cursor:pointer;height:20px}.video-seek-row input{flex:1;width:100%;margin:0}.video-controls-row,.video-playback-controls,.video-volume-controls{display:flex;align-items:center;gap:6px}.video-controls-spacer{flex:1}.video-control{width:36px;height:36px;flex-shrink:0;display:grid;place-items:center;border:0;border-radius:7px;background:transparent;color:#fff;padding:7px;min-height:0;font-size:14px}.video-control:hover:not(:disabled){background:#ffffff25}.video-control:disabled{opacity:.4;cursor:default}.video-control svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.video-control .icon-play,.video-control .icon-pause{fill:currentColor;stroke:none}.video-control text{fill:currentColor;stroke:none;font:600 9px sans-serif}.video-volume-controls input{width:76px;margin:0 4px}.video-controls select{width:74px;min-height:34px;padding:5px 7px;background:#172030;color:#fff;border:1px solid #ffffff40;border-radius:7px;font-size:12px;color-scheme:dark}.video-controls :focus-visible{outline:2px solid #c3d1ff;outline-offset:3px}.video-stage:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.video-stage:fullscreen{width:100vw;height:100vh;max-height:none;aspect-ratio:auto;border-radius:0;background:#000}.video-stage:fullscreen video{max-height:none}.video-stage:fullscreen .video-controls{padding-inline:clamp(18px,3vw,64px);padding-bottom:max(20px,env(safe-area-inset-bottom))}.video-stage:fullscreen .video-placeholder{display:none}
@media(hover:hover){.video-stage.is-playing:not(:hover):not(:focus-within) .video-controls{opacity:0;pointer-events:none}}
@media(max-width:1000px){.video-import-header{align-items:flex-start;flex-direction:column;gap:12px}.video-import-header .video-drop{width:100%}.video-layout{grid-template-columns:1fr}.video-list{max-height:300px}}
@media(max-width:600px){.video-controls{padding:32px 10px 10px;gap:4px}.video-controls-row,.video-playback-controls,.video-volume-controls{gap:3px}.video-control{width:30px;height:32px;padding:5px}.video-control svg{width:20px;height:20px}.video-volume-controls input{display:none}.video-controls select{width:60px;min-height:32px;padding:4px;font-size:11px}.video-seek-row{gap:8px}.video-seek-row #video-progress{font-size:10px}.video-stage{min-height:180px}.video-import-header{gap:12px}}
@media(prefers-reduced-motion:reduce){.video-controls{transition:none}}
.video-stage{width:100%;min-width:0;max-height:max(280px,calc(100dvh - 350px))}.video-controls-row{min-width:0}.video-controls-spacer{min-width:0}.video-workspace.is-dragging .video-drop{border-color:var(--accent);background:var(--accent-soft)}
@media(min-width:1001px){body[data-app-id=video] .tool-topbar{padding-block:16px}body[data-app-id=video] .tool-main{padding-top:24px}body[data-app-id=video] .tool-heading{position:relative;padding-right:260px;margin-bottom:16px}body[data-app-id=video] .tool-heading h1{font-size:28px}body[data-app-id=video] .tool-heading>p:not(.eyebrow){margin:8px 0;font-size:13px}body[data-app-id=video] .privacy-note{position:absolute;right:0;top:28px}.video-import-header .video-drop{padding:10px 12px;width:430px}.video-import-header .field{display:flex;align-items:center;gap:10px}.video-import-header label{white-space:nowrap}.video-import-header input{min-width:0}}
@media(max-width:1000px){.video-stage{max-height:none}}
@media(max-width:600px){.video-controls-row,.video-playback-controls,.video-volume-controls{gap:2px}.video-control{width:28px;height:36px}.video-controls select{width:56px}.video-seek-row #video-progress{font-size:9px}}
.video-stage:fullscreen{width:100vw;max-height:none}