:root{--bg:#0b0d10;--card:#15181d;--border:#262b33;--text:#ffffff;--sub:#9aa3ad;--accent:#2f6bff;--accent-soft:rgba(47,107,255,.14)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}html,body{font-family:-apple-system,BlinkMacSystemFont,Inter,Helvetica Neue,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text)}body{min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}header{position:fixed;top:0;left:0;right:0;z-index:50;background:#0b0d10d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.header-content{max-width:940px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}.logo{font-weight:700;font-size:17px;letter-spacing:.5px}.logo a{color:var(--text);text-decoration:none}.logo a:hover{color:var(--accent)}.nav-links{display:flex;gap:24px;font-size:14px}.nav-links a{color:var(--sub);text-decoration:none;transition:color .2s ease}.nav-links a:hover{color:var(--text)}.hero{padding:150px 24px 0;text-align:center}.hero h1{font-size:46px;line-height:1.15;font-weight:800;letter-spacing:-1px;margin-bottom:0}.hero h1 span{color:var(--accent)}.hero p.sub{font-size:16px;color:var(--sub);max-width:560px;margin:0 auto;line-height:1.8}.doc{max-width:940px;width:100%;margin:0 auto;padding:0 24px}.doc{padding-top:28px}.faq{max-width:940px;width:100%;margin:0 auto;padding:64px 24px 72px}.doc>h2,.faq>h2{font-size:24px;font-weight:800;margin-bottom:16px}.doc>p{font-size:14.5px;color:var(--sub);line-height:1.9}.doc>p+p,.doc>p+pre,.doc>p+table,.doc>p+.alert{margin-top:14px}.doc>h2,.doc>h3,.doc>h4,.step-doc>h3,.faq>h2,details.qa{scroll-margin-top:84px}.link{color:#8fb4ff;text-decoration:underline;text-underline-offset:3px}.link:hover{color:#b6ccff}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;background:#0f1216;border:1px solid var(--border);border-radius:6px;padding:1px 7px;color:#cfe0ff}pre{position:relative;margin-top:14px;padding:14px 18px;border-radius:12px;overflow-x:auto;background:#0f1216;border:1px solid var(--border)}pre code{padding:0;border:0;background:transparent;font-size:13px;line-height:1.8;color:#cfe0ff;white-space:pre}pre+p,pre+.sub-steps,pre+.alert,pre+img,pre+table{margin-top:14px}.alert{margin-top:18px;padding:16px 18px;border-radius:12px;font-size:14px;line-height:1.9;color:var(--sub)}.alert h3,.alert h5{color:var(--text);font-size:15px;font-weight:700;margin-bottom:8px}.alert p+p{margin-top:8px}.alert b{color:#e7ecf3}.alert-warn{background:#ffb22f14;border:1px solid rgba(255,178,47,.32)}.alert-danger{background:#ff5e5e14;border:1px solid rgba(255,94,94,.36)}.alert-info{background:#2f6bff14;border:1px solid rgba(47,107,255,.28)}.steps-doc{list-style:none;display:grid;gap:12px;margin-top:20px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));counter-reset:step-doc 0}.step-doc{display:grid;grid-template-columns:auto 1fr;gap:6px 8px;align-content:start;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px}.step-doc:before{counter-increment:step-doc;content:counter(step-doc);width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--accent-soft);border:1px solid rgba(47,107,255,.42);color:#cfe0ff;font-size:12px;font-weight:700}.step-doc>h3{align-self:center;font-size:14px;font-weight:700;line-height:1.5}.step-doc>p{grid-column:1/-1;font-size:13px;color:var(--sub);line-height:1.75}.step-doc>p+p{margin-top:8px}.step-doc>h4{grid-column:1/-1;margin-top:12px;font-size:13.5px;font-weight:700;color:#dce8ff}.step-doc>.sub-steps{grid-column:1/-1}.step-doc>pre{grid-column:1/-1}.step-doc>.gallery{grid-column:1/-1;grid-template-columns:1fr}.step-doc>.tbl{grid-column:1/-1}.step-doc>.alert{grid-column:1/-1}.step-doc>.mini{grid-column:1/-1}.step-doc .mini{font-size:13px;color:var(--sub);line-height:1.75}.step-doc .mini .gallery{grid-template-columns:1fr}.sub-steps{margin-top:8px;padding-left:20px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--sub);line-height:1.75}.sub-steps b{color:#e7ecf3}.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}.shot{width:100%;margin:0;aspect-ratio:16/10;object-fit:cover;object-position:center;background:#0f1216;border:1px solid var(--border);border-radius:10px;cursor:zoom-in;transition:transform .15s ease,border-color .15s ease}.shot:hover{transform:scale(1.02);border-color:var(--accent)}.gallery.media{position:relative}.gallery video{width:100%;display:block;margin:0;aspect-ratio:16/10;object-fit:cover;object-position:center;background:#0f1216;border:1px solid var(--border);border-radius:10px}.video-zoom{position:absolute;right:10px;bottom:10px;z-index:2;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.28);border-radius:8px;background:#0b0d10a8;color:#fff;cursor:pointer;transition:background .15s ease,border-color .15s ease}.video-zoom:hover{background:var(--accent);border-color:var(--accent)}.video-zoom svg{width:16px;height:16px}.media-cap{grid-column:1/-1;margin-top:6px;margin-bottom:10px;padding-bottom:6px;font-size:12px;color:var(--sub);border-bottom:1px solid rgba(255,255,255,.06)}.copy-btn{position:absolute;top:8px;right:8px;width:26px;height:26px;display:flex;align-items:center;justify-content:center;color:#cfe0ff;background:#2f6bff29;border:1px solid rgba(47,107,255,.42);border-radius:6px;cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease}.copy-btn svg{width:13px;height:13px}.copy-btn:hover{background:#2f6bff52}.copy-btn .i-check{display:none}.copy-btn.copied{color:#7ef0b2;background:#54f0b21f;border-color:#54f0b273}.copy-btn.copied .i-copy{display:none}.copy-btn.copied .i-check{display:block}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;padding:24px;display:flex;align-items:center;justify-content:center;background:#000000e6;opacity:0;visibility:hidden;transition:opacity .2s ease}.lightbox.open{opacity:1;visibility:visible}.lightbox img,.lightbox video{max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 10px 40px #00000080}.tbl{width:100%;margin-top:16px;border-collapse:collapse;font-size:13.5px;color:var(--sub);line-height:1.7;background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden}.tbl th,.tbl td{padding:11px 16px;text-align:left;border-bottom:1px solid var(--border)}.tbl thead th{color:var(--text);font-weight:700;background:#ffffff08}.tbl tr:last-child td{border-bottom:0}.tbl b{color:#e7ecf3}blockquote{margin-top:14px;padding:10px 16px;border-left:3px solid var(--accent);background:var(--card);border-radius:0 10px 10px 0;font-size:13.5px;color:var(--sub);line-height:1.8}.qa{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden}.qa summary{list-style:none;cursor:pointer;display:flex;align-items:center;padding:18px 22px;font-size:15px;font-weight:700;line-height:1.6}.qa summary::-webkit-details-marker{display:none}.qa summary:after{content:"+";margin-left:auto;padding-left:12px;color:var(--sub);font-size:18px;font-weight:400}.qa[open] summary:after{content:"–"}.qa summary:hover{color:#dce8ff}.qa-body{padding:0 22px 22px;font-size:14px;color:var(--sub);line-height:1.9}.qa-body p+p,.qa-body p+ol,.qa-body p+ul{margin-top:10px}.qa-body ol,.qa-body ul{margin-top:10px;padding-left:22px;display:flex;flex-direction:column;gap:7px}.qa-body h5{margin-top:16px;font-size:14.5px;font-weight:700;color:var(--text)}.qa-body h5:first-child{margin-top:0}.qa-body b{color:#e7ecf3}.qa-body .tbl,.qa-body .gallery,.qa-body pre,.qa-body blockquote{margin-top:12px}.mini{margin-top:12px;background:#ffffff05;border:1px solid var(--border);border-radius:10px;overflow:hidden}.mini summary{list-style:none;cursor:pointer;padding:12px 16px;font-size:13.5px;font-weight:400;color:#dce8ff;display:flex;align-items:center}.mini summary::-webkit-details-marker{display:none}.mini summary:after{content:"展开";margin-left:auto;font-size:12px;font-weight:600;color:#8fb4ff}.mini[open] summary:after{content:"收起"}.mini summary:hover{color:#fff}.mini>p,.mini>ol,.mini>pre,.mini>.gallery,.mini>.tbl{margin:0 16px 14px}.mini>.tbl{border:0;background:transparent;border-radius:0}.mini>ol{padding-left:20px;display:flex;flex-direction:column;gap:7px}.mini>pre{margin-top:0}.mini-open{margin-top:12px;padding:12px 16px;background:#ffffff05;border:1px solid var(--border);border-radius:10px}.mini-open pre{margin-top:8px}footer{margin-top:auto;border-top:1px solid var(--border);padding:24px;text-align:center;font-size:13px;color:#5b646e}@media(max-width:820px){.hero{padding-top:120px}.hero h1{font-size:32px}.nav-links{gap:16px}.step-doc{padding:14px 16px}.steps-doc{grid-template-columns:1fr}.qa-body{padding:0 16px 18px}.qa summary{padding:16px}.gallery{grid-template-columns:repeat(2,1fr)}}