:root{--brand:#2563eb;--brand-2:#7c3aed;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--soft:#f8fafc}body{min-height:100vh;color:var(--ink);background:radial-gradient(circle at top left,rgba(37,99,235,.12),transparent 32rem),radial-gradient(circle at top right,rgba(124,58,237,.10),transparent 28rem),#f6f8fb;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}.doc-shell{max-width:1120px}.hero{border:1px solid rgba(255,255,255,.72);border-radius:28px;background:rgba(255,255,255,.88);box-shadow:0 24px 80px rgba(15,23,42,.08);backdrop-filter:blur(16px)}.platform-badge{display:inline-flex;align-items:center;gap:.5rem;border:1px solid var(--line);border-radius:999px;padding:.45rem .85rem;color:var(--muted);background:#fff;font-size:.92rem}.doc-card{border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:0 14px 40px rgba(15,23,42,.06)}.doc-card-hover{transition:transform .2s ease,box-shadow .2s ease}.doc-card-hover:hover{transform:translateY(-3px);box-shadow:0 22px 60px rgba(15,23,42,.10)}.nav-pill{border-radius:999px}.top-nav{display:flex;align-items:center;justify-content:space-between;gap:1rem}.official-cta{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;border-radius:999px;padding:.58rem 1.15rem;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));font-weight:700;text-decoration:none;box-shadow:0 12px 28px rgba(37,99,235,.26)}.official-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:0 16px 34px rgba(37,99,235,.34)}.logo-tile{display:grid;width:4rem;height:4rem;flex:0 0 auto;place-items:center;overflow:hidden;border-radius:20px;background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(124,58,237,.12));font-size:2rem}.logo-tile img{width:100%;height:100%;object-fit:contain}.soft-box{border:1px solid var(--line);border-radius:18px;background:var(--soft)}.source-link{color:var(--brand);text-decoration:none}.source-link:hover{text-decoration:underline}.article-content{font-size:1rem;line-height:1.85}.step{position:relative;padding-left:3.25rem}.step+.step{margin-top:1.2rem}.step-number{position:absolute;left:0;top:.1rem;display:grid;width:2.35rem;height:2.35rem;place-items:center;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));font-weight:800}.step h3{font-size:1.08rem;margin-bottom:.35rem}.step p{color:#374151;margin-bottom:0}.article-image{margin:1.1rem 0;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 14px 40px rgba(15,23,42,.06)}.article-image img{display:block;width:100%;max-height:560px;object-fit:contain;background:#f3f4f6}.article-image figcaption{padding:.75rem 1rem;color:var(--muted);font-size:.86rem;border-top:1px solid var(--line)}.article-card-cover{width:100%;height:190px;object-fit:cover;background:#f3f4f6;border-bottom:1px solid var(--line)}.keyword{display:inline-flex;align-items:center;border-radius:999px;padding:.28rem .65rem;background:#eef2ff;color:#3730a3;font-size:.82rem;margin:.16rem .2rem .16rem 0}.toc a{display:block;padding:.55rem .7rem;color:#374151;text-decoration:none;border-radius:12px}.toc a:hover{background:#f3f4f6;color:var(--brand)}.notice{border-left:4px solid var(--brand);background:#eff6ff;border-radius:16px}.site-footer{border-top:1px solid var(--line);padding:1.25rem 0 0;color:var(--muted);font-size:.92rem}.site-footer a{color:var(--brand);text-decoration:none}.site-footer a:hover{text-decoration:underline}.footer-official{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}.footer-official span{white-space:pre-line}.footer-contact{white-space:pre-line}@media(max-width:768px){.top-nav{align-items:flex-start;flex-direction:column}.official-cta{width:100%}.hero{border-radius:22px}.step{padding-left:0}.step-number{position:static;margin-bottom:.6rem}.article-image img{max-height:420px}}