:root { --ink:#16202e; --muted:#667286; --line:#dfe5ee; --paper:#fbfcff; --blue:#5277ff; --purple:#7766ea; --lime:#c6f857; --dark:#152131; --radius:22px; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; background:#f7f9fd; color:var(--ink); font-family:"Noto Sans SC",Manrope,sans-serif; line-height:1.62; overflow-x:hidden; }
.ambient { position:fixed; z-index:-1; border-radius:50%; filter:blur(2px); opacity:.5; pointer-events:none; }
.ambient-one { width:580px; height:580px; right:-220px; top:90px; background:radial-gradient(circle,#dce3ff,transparent 68%); }
.ambient-two { width:480px; height:480px; left:-260px; top:460px; background:radial-gradient(circle,#d8fae6,transparent 68%); }
.site-header { height:76px; display:flex; align-items:center; gap:34px; padding:0 max(28px,calc((100vw - 1360px)/2)); border-bottom:1px solid rgba(215,222,234,.75); background:rgba(251,252,255,.78); backdrop-filter:blur(18px); position:sticky; top:0; z-index:10; }
.brand { color:var(--ink); text-decoration:none; display:flex; align-items:center; gap:9px; font-family:Manrope,sans-serif; font-weight:700; letter-spacing:-.4px; white-space:nowrap; }.brand b{color:var(--blue)}
.brand-mark { color:#fff; display:grid; place-items:center; width:26px; height:26px; background:linear-gradient(135deg,var(--blue),var(--purple)); border-radius:8px; font-size:15px; box-shadow:0 5px 14px #7887e466; }
.top-nav { display:flex; gap:25px; margin-right:auto; }.top-nav a { color:#536076; text-decoration:none; font-size:14px; font-weight:600; }.top-nav a:hover{color:var(--blue)}
.header-actions{display:flex;align-items:center;gap:10px}.search-trigger{border:1px solid var(--line);background:#fff;border-radius:10px;color:#667286;padding:8px 10px;display:flex;align-items:center;gap:8px;font:13px inherit;cursor:pointer}.search-trigger kbd{font-size:10px;background:#f2f4f8;padding:2px 5px;border-radius:4px}.button{display:inline-flex;align-items:center;justify-content:center;gap:11px;padding:12px 18px;border-radius:11px;text-decoration:none;font-weight:700;font-size:14px;transition:.2s transform,.2s box-shadow}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px #5277ff45}.button-secondary,.button-quiet{background:#fff;color:var(--ink);border:1px solid var(--line)}.button-quiet{padding:8px 12px;font-size:12px}.button-dark{background:#1f2b3b;color:#fff}
.hero { max-width:1360px; min-height:580px; margin:auto; padding:112px 58px 82px; position:relative; overflow:hidden; }.eyebrow,.section-tag{margin:0 0 14px;color:#68738a;font:700 11px Manrope,sans-serif;letter-spacing:1.45px}.eyebrow span{display:inline-block;width:20px;height:2px;margin:0 8px 4px 0;background:var(--blue)}.hero h1{font:800 clamp(46px,6vw,86px)/1.05 Manrope,"Noto Sans SC",sans-serif;letter-spacing:-4px;margin:0;max-width:780px}.hero h1 em{font-style:normal;color:var(--blue)}.hero-copy{color:#5d687a;font-size:17px;max-width:575px;margin:25px 0}.hero-actions{display:flex;gap:12px}.hero-notes{display:flex;gap:28px;margin-top:66px}.hero-notes div{display:flex;gap:8px;align-items:center;color:#6d7788;font-size:12px}.hero-notes b{color:var(--blue);font:700 12px "DM Mono",monospace}.hero-orbit{position:absolute;right:80px;top:100px;width:320px;height:320px}.hero-core{position:absolute;inset:112px;display:grid;place-items:center;border-radius:50%;color:#fff;font:bold 30px Manrope;background:linear-gradient(135deg,#334dff,#805ae7);box-shadow:0 35px 80px #526aff66}.orbit-ring{position:absolute;border:1px solid #cbd5ff;border-radius:50%;inset:20px}.ring-two{inset:0;border-style:dashed;animation:spin 26s linear infinite}.orb{position:absolute;width:20px;height:20px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 8px #c6f85744}.orb-a{right:41px;top:21px}.orb-b{left:10px;bottom:70px;background:#ffa1de;box-shadow:0 0 0 8px #ffa1de44}@keyframes spin{to{transform:rotate(360deg)}}
.layout-shell{max-width:1360px;margin:auto;display:grid;grid-template-columns:210px 1fr;gap:54px;padding:28px 58px 90px}.doc-sidebar{position:sticky;top:104px;height:max-content;border-right:1px solid var(--line);padding-right:25px}.doc-sidebar p{margin:17px 0 5px;font-size:11px;font-weight:800;letter-spacing:1px;color:#98a2b3}.doc-sidebar a{display:block;text-decoration:none;color:#667286;font-size:13px;padding:7px 10px;border-radius:7px}.doc-sidebar a:hover,.doc-sidebar a.active{color:var(--blue);background:#edf0ff;font-weight:700}.doc-content{min-width:0}.section{margin-bottom:68px;scroll-margin-top:105px}.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch}.section h2{font:800 clamp(28px,3vw,40px)/1.17 Manrope,"Noto Sans SC",sans-serif;letter-spacing:-1.7px;margin:0 0 12px}.section h3{font:800 18px Manrope,"Noto Sans SC",sans-serif;margin:0 0 6px}.section p{color:#687487;margin:0}.progress-card{border:1px solid var(--line);background:#fff;padding:29px;border-radius:var(--radius)}.progress-line{height:2px;background:#e5e9f2;margin:8px 0 20px}.progress-line i{display:block;width:67%;height:100%;background:linear-gradient(90deg,var(--blue),var(--purple))}.progress-card ol{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;padding:0;margin:0;gap:10px}.progress-card li{display:flex;flex-direction:column;gap:4px;color:#536076;font-size:12px}.progress-card b{font:700 14px "DM Mono",monospace;color:var(--blue)}
.step-list{display:grid;gap:12px}.step-card{position:relative;display:grid;grid-template-columns:55px 1fr 30px;gap:16px;padding:25px 27px;border:1px solid var(--line);background:rgba(255,255,255,.85);border-radius:17px;transition:.2s}.step-card:hover{transform:translateX(4px);border-color:#bfcaff;box-shadow:0 10px 26px #7182b81a}.step-number{font:700 16px "DM Mono",monospace;color:var(--blue)}.step-card p{font-size:14px}.step-card a{color:var(--blue)}.step-icon{color:#a0abc0;font-size:20px}.code-line{margin-top:13px;border:1px solid #e7eaf1;background:#f7f9fc;border-radius:9px;display:flex;justify-content:space-between;align-items:center;padding:8px 8px 8px 12px}.code-line code,code{font-family:"DM Mono",monospace;font-size:12px}.copy-button{border:0;background:#e6ebff;color:#3f5ce0;padding:6px 9px;border-radius:6px;font:700 11px inherit;cursor:pointer}.copy-button:hover{background:#d7e0ff}
.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.pill{font:11px "DM Mono",monospace;color:#52647f;background:#ebf0f7;padding:7px 9px;border-radius:6px}.code-window{border-radius:18px;overflow:hidden;background:#172333;color:#e3ebff;box-shadow:0 19px 40px #13203824}.window-bar{height:48px;padding:0 16px;display:flex;align-items:center;gap:7px;border-bottom:1px solid #29394c}.window-bar span{width:9px;height:9px;border-radius:50%;background:#ff778d}.window-bar span:nth-child(2){background:#ffc760}.window-bar span:nth-child(3){background:#80d99b}.window-bar b{font:500 12px "DM Mono",monospace;color:#8496ad;margin-left:7px}.window-bar button{margin-left:auto;background:#293a51;color:#b9c9df}.code-window pre{margin:0;padding:26px;overflow:auto;font:13px/1.75 "DM Mono",monospace}.api-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}.api-cards article{border:1px solid var(--line);border-radius:12px;padding:15px;background:#fff}.api-cards span{display:block;font-size:11px;color:#8893a4;margin-bottom:5px}.api-cards b,.api-cards code{font-size:12px;color:#405067}
.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.info-panel{border-radius:20px;padding:35px;min-height:255px;display:flex;flex-direction:column;align-items:flex-start}.info-panel p{font-size:14px}.dark-panel{background:var(--dark);color:#fff}.dark-panel p{color:#b9c5d5}.dark-panel .section-tag{color:#b3c4e6}.light-panel{background:linear-gradient(135deg,#e8edff,#e9fbf2)}.text-link{color:#b8c8ff;text-decoration:none;font-weight:700;margin-top:auto}.light-panel .button{margin-top:auto}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.guide-grid .section-heading{grid-column:1/-1}.guide-grid article{border:1px solid var(--line);background:#fff;border-radius:15px;padding:23px}.guide-grid article>b{color:var(--blue);font:700 16px "DM Mono",monospace}.guide-grid article p{font-size:13px}.security-panel{display:flex;gap:23px;background:#fff8ed;border:1px solid #f7ddb2;border-radius:20px;padding:29px}.shield{display:grid;place-items:center;flex:0 0 46px;height:46px;border-radius:13px;background:#ffdfa4;color:#8c5a00;font-size:23px;font-weight:800}.security-panel p{font-size:14px}.faq-section details{border-bottom:1px solid var(--line);padding:18px 5px}.faq-section summary{list-style:none;display:flex;justify-content:space-between;gap:20px;cursor:pointer;font-weight:700}.faq-section summary::-webkit-details-marker{display:none}.faq-section summary span{color:var(--blue);font-size:20px}.faq-section details[open] summary span{transform:rotate(45deg)}.faq-section details p{padding-top:10px;font-size:14px}
.site-footer{border-top:1px solid var(--line);max-width:1360px;margin:auto;padding:32px 58px 45px;display:flex;align-items:center;gap:24px;color:#778297;font-size:13px}.site-footer p{margin-right:auto}.site-footer>a:last-child{color:var(--blue);text-decoration:none;font-weight:700}.search-dialog{border:0;padding:0;background:transparent;max-width:min(640px,90vw);width:100%}.search-dialog::backdrop{background:#1b243b66;backdrop-filter:blur(4px)}.search-modal{background:#fff;border:1px solid #e4e8f0;box-shadow:0 30px 90px #15203338;border-radius:18px;overflow:hidden}.search-input-wrap{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:15px 17px;color:#6d7a8d}.search-input-wrap input{font:16px inherit;border:0;outline:0;flex:1}.search-input-wrap kbd{font-size:10px;background:#eef1f6;padding:4px 6px;border-radius:5px}.search-results{padding:8px;min-height:120px}.search-results p{padding:13px;color:#8a94a5;font-size:13px;margin:0}.search-results a{display:block;padding:11px 13px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:14px}.search-results a:hover{background:#eff3ff;color:var(--blue)}
@media(max-width:920px){.site-header{padding:0 22px}.top-nav{display:none}.search-trigger span:nth-child(2),.search-trigger kbd,.button-quiet{display:none}.hero{padding:78px 28px 55px;min-height:580px}.hero-orbit{opacity:.35;right:-45px;top:205px}.layout-shell{grid-template-columns:1fr;padding:20px 28px 60px}.doc-sidebar{display:none}.intro-grid,.two-columns{grid-template-columns:1fr}.guide-grid{grid-template-columns:1fr}.api-cards{grid-template-columns:1fr}.site-footer{padding:28px;flex-wrap:wrap}.site-footer p{width:100%;order:3}.hero h1{letter-spacing:-2.6px}.hero-notes{margin-top:44px;gap:14px;flex-wrap:wrap}}
@media(max-width:520px){.header-actions .search-trigger{padding:8px}.hero-actions{flex-direction:column;align-items:flex-start}.progress-card ol{grid-template-columns:1fr}.step-card{grid-template-columns:38px 1fr}.step-icon{display:none}.code-window pre{padding:18px;font-size:11px}.section-heading{align-items:flex-start;flex-direction:column}.security-panel{flex-direction:column}.site-header{gap:12px}.brand{font-size:14px}}