:root{--ink:#172326;--muted:#58747a;--line:#e3e9eb;--brand:#2d9c8a;--soft:#eef8f6;--footer:#202831}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(135deg,#eef7f8,#f6f7f8 48%,#ecf7f3);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit}
.page{width:min(1360px,calc(100% - 48px));min-height:calc(100vh - 48px);margin:24px auto;background:#f4f5f6;border-radius:24px;overflow:hidden;box-shadow:0 18px 60px rgba(31,70,77,.14)}
.header{background:#fff;border-bottom:1px solid var(--line)}
.header-inner{max-width:1240px;margin:auto;padding:24px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{text-decoration:none}.brand small{display:block;color:var(--muted);font-weight:700}.brand strong{display:block;font-size:28px;margin-top:3px}.back{color:var(--brand);font-weight:800;text-decoration:none}
.main{max-width:1040px;margin:auto;padding:42px 32px 64px}
.hero{padding:28px 30px;border-radius:20px;background:linear-gradient(135deg,#4eb8a6,#2d9c8a);color:#fff;margin-bottom:22px}.hero h1{margin:0 0 8px;font-size:30px}.hero p{margin:0;line-height:1.8;opacity:.92}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 28px;margin:16px 0;scroll-margin-top:18px}.card h2{margin:0 0 14px;font-size:21px}.card h3{font-size:16px;margin:20px 0 8px}.card p,.card li{color:#405e65;line-height:1.9}.card ol,.card ul{padding-left:22px;margin:10px 0}.notice{padding:14px 16px;border-radius:12px;background:#fff8e8;color:#77551a;line-height:1.8}.meta{display:grid;grid-template-columns:170px 1fr;gap:10px 18px}.meta dt{font-weight:800}.meta dd{margin:0;color:#405e65;line-height:1.8}
.xsg-error-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.xsg-error-links a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:12px;background:var(--soft);color:#277a6d;font-weight:800;text-decoration:none}.xsg-error-links a:first-child{background:var(--brand);color:#fff}
.footer{background:var(--footer);color:#aeb9bf;padding:30px 32px 22px}.footer-grid{max-width:1240px;margin:auto;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:42px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.14)}.footer h3,.footer h4{color:#fff;margin:0 0 10px}.footer p{line-height:1.8;max-width:290px}.footer a{display:block;color:#aeb9bf;text-decoration:none;padding:4px 0}.footer a:hover{color:#fff}.footer-meta{max-width:1240px;margin:auto;padding-top:16px;font-size:13px;line-height:1.9}.footer-meta .beian{display:inline-block;color:#fff;font-weight:800}
@media(max-width:760px){.page{width:100%;margin:0;border-radius:0}.header-inner,.main,.footer{padding-left:22px;padding-right:22px}.main{padding-top:28px}.hero{padding:22px}.hero h1{font-size:25px}.card{padding:20px}.meta{grid-template-columns:1fr}.meta dd{margin-bottom:8px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.footer-brand{grid-column:1/-1}}