:root{--bg:#f5f7fb;--panel:#fff;--ink:#172033;--muted:#627086;--line:#e3e8f1;--brand:#1f66d1;--brand2:#0aa678;--dark:#101827;--shadow:0 18px 45px rgba(20,31,54,.12);--radius:22px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1120px,92vw);margin:0 auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.brand:hover{text-decoration:none}.brand-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(135deg, var(--brand), 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12px;border-radius:999px;background:#e8f2ff;color:#1457b8;font-weight:700;font-size:13px}.hero h1{font-size:clamp(36px,6vw,64px);line-height:1.05;margin:18px 0;color:#0e1b33}.hero p{font-size:18px;color:#4e5e75;margin:0 0 24px}.hero-card{background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow);border-radius:var(--radius);padding:26px}.hero-art{width:100%;border-radius:20px;box-shadow:var(--shadow)}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 18px;font-weight:800;border:1px solid rgba(0,0,0,0)}.btn.primary{background:var(--brand);color:#fff}.btn.secondary{background:#fff;color:var(--brand);border-color:#cfe0fb}.btn:hover{text-decoration:none;transform:translateY(-1px)}.stats{display:grid;grid-template-columns:repeat(4, 1fr);gap:14px;margin-top:28px}.stat{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 8px 22px rgba(20,31,54,.06)}.stat b{display:block;font-size:25px;color:var(--brand)}.stat span{font-size:13px;color:var(--muted)}section.page-section,.page{padding:44px 0}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-head h2,.page h1{font-size:32px;line-height:1.2;margin:0}.section-head p{color:var(--muted);margin:6px 0 0}.grid{display:grid;gap:20px}.grid.cols-2{grid-template-columns:repeat(2, 1fr)}.grid.cols-3{grid-template-columns:repeat(3, 1fr)}.grid.cols-4{grid-template-columns:repeat(4, 1fr)}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 12px 30px rgba(20,31,54,.07)}.card h3{margin:0 0 8px;font-size:22px}.card p{color:var(--muted);margin:0}.card ul{margin:14px 0 0;padding-left:20px}.feature-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:#edf6ff;font-size:24px;margin-bottom:14px}.labs-card{position:relative;overflow:hidden}.labs-card:before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:linear-gradient(90deg, var(--brand), var(--brand2))}.labs-card .tag{display:inline-block;background:#f0f7ff;color:#1457b8;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:800;margin-bottom:12px}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 30px rgba(20,31,54,.06)}table{width:100%;border-collapse:collapse}th,td{padding:15px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#f3f7fd;color:#243047}tr:last-child td{border-bottom:0}.callout{padding:22px;border-radius:var(--radius);background:linear-gradient(135deg, #10203d, #173b72);color:#fff;box-shadow:var(--shadow)}.callout p{color:#dce8ff}.resource-nav{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 28px}.resource-nav a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:700;color:#394760}.timeline{border-left:3px solid #d8e6fb;padding-left:20px}.timeline .item{position:relative;margin-bottom:22px}.timeline .item:before{content:"";position:absolute;left:-30px;top:6px;width:16px;height:16px;background:var(--brand);border-radius:50%;box-shadow:0 0 0 5px #e8f2ff}.timeline .date{font-weight:800;color:var(--brand)}.site-footer{background:var(--dark);color:#dbe5f5;margin-top:50px;padding:38px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}.site-footer h3,.site-footer h4{margin:0 0 10px;color:#fff}.site-footer p{color:#adbad0;margin:0}.site-footer a{display:block;color:#dbe5f5;margin:5px 0}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:18px;color:#8fa0b9;font-size:13px}.page .lead{font-size:18px;color:#4e5e75}.badge-list{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.badge{padding:7px 11px;border-radius:999px;background:#edf4ff;color:#1457b8;font-weight:800;font-size:13px}.notice{border-left:5px solid var(--brand);background:#fff;padding:18px 20px;border-radius:12px;box-shadow:0 8px 20px rgba(20,31,54,.06)}code{background:#eef3fb;padding:2px 5px;border-radius:6px}.codebox{background:#101827;color:#e9f1ff;border-radius:18px;padding:18px;overflow:auto}.codebox code{background:rgba(0,0,0,0);color:inherit;padding:0}.mini-hero{padding:42px 0;background:linear-gradient(135deg, #f9fbff, #eef6ff);border-bottom:1px solid var(--line)}.mini-hero h1{font-size:42px;margin:0 0 8px}.mini-hero p{margin:0;color:var(--muted);font-size:18px}@media(max-width: 860px){.hero-grid,.grid.cols-2,.grid.cols-3,.grid.cols-4,.footer-grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2, 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