:root{--bg:#f7f7f4;--paper:#fff;--ink:#171717;--muted:#696969;--line:#e6e2d8;--soft:#f0eee8;--red:#d8344f;--blue:#2563eb;--green:#15803d;--orange:#ea580c;--cyan:#0891b2;--purple:#7c3aed;--rose:#e11d48;--slate:#475569}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.78}
a{color:inherit;text-decoration:none}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 28px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
.brand{font-weight:900;font-size:16px}
.topbar nav{display:flex;gap:18px;align-items:center;font-size:13px;color:var(--muted)}
.topbar nav a:hover{color:var(--red)}
.layout{display:grid;grid-template-columns:260px minmax(0,1fr);max-width:1440px;margin:0 auto}
.sidebar{position:sticky;top:57px;height:calc(100vh - 57px);padding:24px 16px;border-right:1px solid var(--line);background:#fbfaf7;overflow:auto}
.side-title{font-size:13px;font-weight:900;color:#222;margin:0 8px 12px}
.side-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:10px;color:#303030;font-size:13px;margin-bottom:4px;border:1px solid transparent}
.side-link em{font-style:normal;font-size:11px;color:#858585;white-space:nowrap}
.side-link:hover,.side-link.active{background:#fff;border-color:var(--line);box-shadow:0 8px 24px rgba(20,20,20,.04)}
.side-link.active span{font-weight:900}
.side-note{display:grid;gap:2px;margin:18px 8px 0;padding:12px;border-radius:12px;background:#fff;border:1px solid var(--line);font-size:12px;color:var(--muted)}
.side-note strong{color:#222}
.manual{min-width:0;padding:32px}
.hero-panel{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;border-radius:18px;padding:32px;background:#171717;color:#fff;box-shadow:0 18px 48px rgba(20,20,20,.12)}
.hero-panel.red{background:linear-gradient(135deg,#18181b,#be123c)}
.hero-panel.blue{background:linear-gradient(135deg,#172554,#2563eb)}
.hero-panel.green{background:linear-gradient(135deg,#052e16,#15803d)}
.hero-panel.orange{background:linear-gradient(135deg,#431407,#ea580c)}
.hero-panel.cyan{background:linear-gradient(135deg,#083344,#0891b2)}
.hero-panel.purple{background:linear-gradient(135deg,#2e1065,#7c3aed)}
.hero-panel.rose{background:linear-gradient(135deg,#4c0519,#e11d48)}
.hero-panel.slate{background:linear-gradient(135deg,#111827,#475569)}
.eyebrow{display:inline-flex;margin-bottom:10px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.14);font-size:12px;font-weight:800}
.hero-panel h1{margin:0;font-size:clamp(30px,4vw,52px);line-height:1.12;letter-spacing:0}
.hero-panel p{margin:14px 0 0;max-width:760px;color:rgba(255,255,255,.82);font-size:16px}
.hero-meta{display:grid;gap:8px;min-width:150px}
.hero-meta span{display:block;padding:8px 10px;border-radius:10px;background:rgba(255,255,255,.12);font-size:12px;text-align:center;font-weight:800}
.hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:20px}
.manual-card{display:flex;flex-direction:column;min-height:190px;padding:20px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 30px rgba(20,20,20,.04)}
.manual-card:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(20,20,20,.08)}
.manual-card h3{margin:12px 0 8px;font-size:20px}
.manual-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.7;flex:1}
.manual-card strong{margin-top:14px;font-size:13px;color:var(--red)}
.card-badge{align-self:flex-start;padding:4px 10px;border-radius:999px;background:#f4f2ed;border:1px solid var(--line);font-size:12px;font-weight:900;color:#333}
.content-shell{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;margin-top:24px;align-items:start}
.content{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:34px;box-shadow:0 10px 36px rgba(20,20,20,.05);min-width:0;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.content h1{display:none}
.content h2{margin:34px 0 14px;padding-top:8px;font-size:25px;line-height:1.32;border-top:1px solid var(--line)}
.content h2:first-child{margin-top:0;border-top:none}
.content h3{margin:26px 0 10px;font-size:19px}
.content h4{margin:18px 0 8px;font-size:16px}
.content p{margin:10px 0;color:#272727}
.content a{color:var(--blue);font-weight:900;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;cursor:pointer}
.content u,.content .manual-underline{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.content .manual-highlight{border-radius:3px;padding:0 2px;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.content .manual-highlight-yellow{background:#fff38a}.content .manual-highlight-green{background:#d9f99d}.content .manual-highlight-blue{background:#bfdbfe}.content .manual-highlight-rose{background:#fecdd3}
.content .manual-file-link{display:inline-flex;align-items:center;gap:8px;margin:7px 0;padding:8px 11px;border:1px solid #bfdbfe;border-radius:6px;background:#eff6ff;color:#1d4ed8;font-weight:900;text-decoration:none}
.content .manual-file-link::before{content:"附件";display:inline-flex;align-items:center;justify-content:center;padding:2px 6px;border-radius:4px;background:#dbeafe;color:#1e40af;font-size:12px}
.content img{display:block;max-width:100%;height:auto;margin:14px auto;border:1px solid var(--line);border-radius:12px}
.content img.manual-img-inline{display:inline-block;vertical-align:top;margin:8px 8px 8px 0}
.content img.manual-img-block{display:block;margin:14px auto}
.content img.manual-img-w25{width:25%}.content img.manual-img-w33{width:33.333%}.content img.manual-img-w50{width:50%}.content img.manual-img-w66{width:66.666%}.content img.manual-img-w100{width:100%}
.content ol,.content ul{padding-left:22px;margin:10px 0 18px}
.content li{margin:5px 0}
.content code{padding:2px 6px;border-radius:6px;background:#f1f1ed;color:#b4233a;font-size:.92em}
pre{overflow:auto;margin:16px 0;padding:16px;border-radius:14px;background:#111827;color:#e5e7eb}
pre code{padding:0;background:transparent;color:inherit}
blockquote{margin:16px 0;padding:14px 16px;border-left:4px solid var(--red);background:#fff7f7;border-radius:0 12px 12px 0;color:#363636}
.table-wrap{overflow:auto;margin:16px 0;border:1px solid var(--line);border-radius:14px}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
th{background:#f6f4ef;font-weight:900}
tr:last-child td{border-bottom:none}
.toc{position:sticky;top:82px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 10px 30px rgba(20,20,20,.04)}
.toc-title{font-size:13px;font-weight:900;margin-bottom:10px;color:#222}
.toc-link{display:block;padding:7px 0;color:#5f5f5f;font-size:13px;border-bottom:1px solid #f1eee7}
.toc-link.sub{padding-left:12px;font-size:12px}
.toc-link:hover{color:var(--red)}
.toc-empty{font-size:12px;color:#888}
.manual-images{margin-top:36px;padding-top:22px;border-top:1px solid var(--line)}
.image-head h2{margin:0 0 6px;border-top:none;padding-top:0}
.image-head p{color:var(--muted)}
.image-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:16px}
.image-card,.image-slot{margin:0;border:1px solid var(--line);border-radius:16px;background:#faf9f6;overflow:hidden;min-height:190px}
.image-card img{width:100%;display:block;aspect-ratio:3/4;object-fit:contain;background:#f0eee8}
.image-card figcaption{padding:10px 12px;font-size:12px;color:#555;font-weight:800}
.image-slot{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;border-style:dashed;color:#777;text-align:center;padding:18px}
.image-slot span{font-weight:900;color:#333}
.image-slot small{font-size:12px;color:#999}
.manual-footer{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:22px 0 0;color:var(--muted);font-size:12px}
.manual-footer a{font-weight:900;color:var(--red)}
@media(max-width:1100px){.layout{grid-template-columns:1fr}.sidebar{position:static;height:auto;border-right:none;border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.side-title,.side-note{grid-column:1/-1}.content-shell{grid-template-columns:1fr}.toc{position:static}.hub-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){.topbar{align-items:flex-start;flex-direction:column;padding:12px 16px}.topbar nav{gap:12px;flex-wrap:wrap}.manual{padding:18px}.hero-panel{display:block;padding:22px;border-radius:16px}.hero-meta{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:18px}.content{padding:22px;border-radius:16px}.content img.manual-img-inline{display:block;width:100%;margin:12px auto}.sidebar{grid-template-columns:1fr}.hub-grid,.image-grid{grid-template-columns:1fr}.manual-footer{align-items:flex-start;flex-direction:column}}
@media print{body::before{content:"学员手册仅限在线查看，不支持打印导出。";display:block;padding:32px;font-size:18px;font-weight:900;color:#171717}.topbar,.layout{display:none!important}}