:root{color-scheme:light;--bg:#f5f7fb;--surface:#fff;--ink:#172033;--muted:#607086;--line:#d9e2ec;--accent:#2563eb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #93b4ff;outline-offset:3px}button:disabled{cursor:default;opacity:.4}.topbar{height:68px;padding:0 32px;display:flex;align-items:center;border-bottom:1px solid var(--line);background:#fff;gap:44px}.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:650;white-space:nowrap}.brand b{display:grid;place-items:center;background:var(--ink);color:#fff;border-radius:7px;width:32px;height:32px;font-size:21px}.topbar nav{display:flex;height:100%;gap:28px;align-items:center;font-size:14px}.topbar nav a{height:100%;display:flex;align-items:center;color:var(--muted);border-bottom:2px solid transparent}.topbar nav .current{color:var(--accent);border-bottom-color:var(--accent)}.topbar>.icon-button{margin-left:auto}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);flex:none}.icon-button:hover{background:#edf3ff;border-color:#afc5ef}.icon-button svg,svg.icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.icon-button.primary{background:var(--accent);border-color:var(--accent);color:#fff}#app{max-width:1760px;margin:0 auto;padding:32px}.intro{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:24px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--accent);margin:0 0 10px;text-transform:uppercase}.intro h1{font-size:30px;font-weight:650;letter-spacing:-.8px;margin:0 0 10px}.intro p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}.method-link{font-size:13px;white-space:nowrap;color:var(--muted)}.method-link:hover{color:var(--accent)}.steps{display:flex;align-items:center;padding:16px 0 20px;border-bottom:1px solid var(--line);gap:48px}.step{display:flex;gap:12px;align-items:center;flex:1}.step>b{font-size:24px;line-height:1;color:#9eacc0;font-weight:450;font-variant-numeric:tabular-nums}.step strong{font-size:14px;display:block;font-weight:600;margin-bottom:4px}.step span{font-size:12px;color:var(--muted)}.filters{display:flex;align-items:center;gap:12px;margin:22px 0 18px}.searchbox{position:relative;width:340px}.searchbox svg{position:absolute;left:12px;top:11px;color:var(--muted)}.filters input,.filters select{height:40px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);font-size:13px}.filters input{width:100%;padding:0 12px 0 38px}.filters select{padding:0 32px 0 12px}.count{margin-left:auto;color:var(--muted);font-size:13px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.style-card{min-width:0;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}.style-card:hover{border-color:#9eb7e1}.cover-link{display:block;background:#eee;position:relative;overflow:hidden;aspect-ratio:16/9;border-bottom:1px solid #edf0f4}.cover-link img{display:block;width:100%;height:100%;object-fit:contain}.cover-action{position:absolute;bottom:12px;right:12px;display:flex;align-items:center;gap:8px;background:#fffffff2;padding:7px 10px;border-radius:5px;font-size:12px;box-shadow:0 2px 8px #0001;color:var(--ink)}.card-body{padding:16px 18px}.card-title{display:flex;justify-content:space-between;align-items:center;gap:12px}.card-title h2{font-size:18px;letter-spacing:-.3px;margin:0}.palette{display:flex;gap:4px}.swatch{width:12px;height:12px;border-radius:50%;border:1px solid #0002;background:var(--swatch)}.source-line{font-size:12px;color:var(--muted);margin:7px 0 10px}.card-summary{font-size:13px;line-height:1.6;min-height:21px;margin:0;color:#4b5a70}.card-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:14px;padding-top:12px;border-top:1px solid #edf0f4}.tags{display:flex;gap:10px;font-size:11px;color:var(--muted)}.card-bottom a{color:var(--accent);font-size:12px;white-space:nowrap}.library-note{margin:28px 0 6px;font-size:12px;color:var(--muted);line-height:1.7}.empty{padding:60px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:8px;color:var(--muted)}.empty button{background:var(--accent);color:#fff;border:0;border-radius:6px;padding:10px 15px;margin-top:12px}.detail-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:16px}.detail-title{display:flex;align-items:center;gap:14px}.detail-title h1{font-size:24px;margin:0 0 5px}.detail-title p{font-size:12px;color:var(--muted);margin:0}.detail-nav{display:flex;align-items:center;gap:8px}.detail-nav span{font-size:12px;color:var(--muted);margin-right:6px}.workspace{display:grid;grid-template-columns:minmax(0,1.16fr) minmax(0,1fr);align-items:start;gap:24px}.visual-pane{min-width:0}.slide-stage{aspect-ratio:16/9;position:relative;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}.slide-stage>button{border:0;padding:0;background:transparent;display:block;width:100%;height:100%}.slide-stage img{display:block;width:100%;height:100%;object-fit:contain}.slide-stage .expand-label{position:absolute;bottom:12px;right:12px;background:#fffffff0;padding:7px;display:flex;align-items:center;border-radius:5px;pointer-events:none}.slide-strip{display:flex;align-items:center;gap:10px;margin-top:12px}.thumb{width:90px;border:2px solid transparent;padding:2px;background:none;border-radius:5px;position:relative}.thumb img{display:block;width:100%;aspect-ratio:16/9;object-fit:contain}.thumb.active{border-color:var(--accent)}.thumb span{position:absolute;bottom:5px;right:5px;background:#172033cc;color:white;font-size:10px;padding:1px 4px;border-radius:2px}.preview-caption{font-size:12px;color:var(--muted);margin-left:auto;text-align:right;line-height:1.6}.source-actions{display:flex;gap:18px;margin:14px 0 22px;font-size:12px;color:var(--muted)}.source-actions a:hover{color:var(--accent)}.goal-form{border-top:1px solid var(--line);padding-top:18px}.goal-form h2{font-size:16px;margin:0 0 5px}.goal-form>p{font-size:12px;color:var(--muted);margin:0 0 14px;line-height:1.6}.goal-form label{display:grid;grid-template-columns:84px minmax(0,1fr);align-items:center;gap:8px;font-size:13px;margin:9px 0}.goal-form input{padding:9px 11px;border:1px solid var(--line);border-radius:5px;background:#fff;width:100%;font-size:13px;color:var(--ink)}.goal-form .privacy{margin-top:12px;font-size:11px;color:var(--muted)}.document-pane{min-width:0;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;position:sticky;top:18px}.doc-tabs{display:flex;padding:0 16px;border-bottom:1px solid var(--line);gap:20px}.doc-tabs button{border:0;border-bottom:2px solid transparent;background:none;padding:17px 0 14px;font-size:13px;color:var(--muted);white-space:nowrap}.doc-tabs button[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.doc-tools{display:flex;gap:8px;align-items:center;border-bottom:1px solid #edf0f4;padding:10px 16px;min-height:57px}.doc-tools>span{font-size:12px;color:var(--muted);margin-right:auto}.md-source{margin:0;padding:20px 22px 28px;white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal;font:12px/1.85 ui-monospace,SFMono-Regular,Consolas,"PingFang SC",monospace;height:calc(100vh - 318px);min-height:390px;max-height:740px;overflow:auto;tab-size:2;color:#344258}.md-heading{color:#2563eb;font-weight:600}.md-note{color:#8490a2}.md-table{color:#556378}.doc-foot{padding:12px 16px;border-top:1px solid #edf0f4;color:var(--muted);font-size:11px;line-height:1.6;background:#fafbfc}.loading{padding:60px;text-align:center;color:var(--muted)}#toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,10px);background:#172033;color:white;padding:11px 18px;border-radius:7px;font-size:13px;opacity:0;pointer-events:none;transition:.15s;z-index:30;max-width:90vw}#toast.visible{opacity:1;transform:translate(-50%,0)}#zoom{padding:0;border:0;background:#fff;max-width:94vw;width:1400px;border-radius:6px}#zoom::backdrop{background:#0b1227d9}#zoom img{display:block;width:100%;max-height:89vh;object-fit:contain}.zoom-close{position:absolute;right:14px;top:14px;z-index:1}