:root{--brand: #0d9488;--brand-dark: #0f766e;--brand-light: #ccfbf1;--ink: #1e293b;--muted: #64748b;--bg: #f8fafc;--card: #ffffff;--line: #e2e8f0;--danger: #dc2626;--danger-bg: #fef2f2;--danger-line: #fecaca;--amber: #b45309;--amber-bg: #fffbeb}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:system-ui,-apple-system,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif;color:var(--ink);background:var(--bg);line-height:1.75}.wrap{max-width:780px;margin:0 auto;padding:0 20px}a{color:var(--brand-dark)}.site-header{background:var(--card);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px}.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:var(--ink);text-decoration:none}.site-header nav{display:flex;gap:18px}.site-header nav a{color:var(--muted);text-decoration:none;font-size:15px}.site-header nav a:hover{color:var(--brand-dark)}.site-footer{margin-top:56px;border-top:1px solid var(--line);background:var(--card);padding:24px 0 32px;font-size:13.5px;color:var(--muted)}.site-footer strong{color:var(--ink)}.muted{color:var(--muted)}.hero{padding:44px 0 8px}.hero h1{font-size:30px;margin:0 0 12px}.hero .lead{font-size:16.5px;color:var(--ink);max-width:620px}.hero .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.chip{display:inline-block;padding:2px 10px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:13px;font-weight:500}.chip-outline{background:transparent;border:1px solid var(--line);color:var(--muted)}.chip-warn{background:var(--amber-bg);color:var(--amber);border:1px solid #fde68a}.chip-ok{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin:28px 0 8px}.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;text-decoration:none;color:var(--ink);transition:border-color .15s ease}.card:hover{border-color:var(--brand)}.card h3{margin:0 0 6px;font-size:17px;color:var(--brand-dark)}.card p{margin:0 0 10px;font-size:14px;color:var(--muted)}.card .meta{display:flex;flex-wrap:wrap;gap:8px}.section-title{font-size:20px;margin:40px 0 4px}.section-sub{color:var(--muted);font-size:14px;margin-top:0}.notice{background:var(--amber-bg);border:1px solid #fde68a;border-radius:10px;padding:12px 16px;font-size:14px;margin:24px 0}.topic-header{padding-top:36px}.topic-header h1{font-size:28px;margin:0 0 4px}.topic-header .subtitle{color:var(--muted);margin:0 0 12px}.topic-header .meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 10px;font-size:14px}.per-topic-disclaimer{font-size:13.5px;color:var(--muted);border-left:3px solid var(--line);padding-left:10px;margin:12px 0 0}.emergency{background:var(--danger-bg);border:1px solid var(--danger-line);border-left:5px solid var(--danger);border-radius:12px;padding:18px 22px;margin:26px 0}.emergency h2{margin:0 0 10px;font-size:17px;color:var(--danger)}.emergency ul{margin:0;padding-left:22px}.emergency li{margin:6px 0;font-weight:500}.emergency-footer{margin:12px 0 0;font-size:13.5px;color:var(--amber);font-weight:500}.prose h2{font-size:20px;margin:36px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--line)}.prose h3{font-size:16.5px;margin:26px 0 8px}.prose p,.prose ul,.prose ol{font-size:15.5px}.prose li{margin:5px 0}.prose table{border-collapse:collapse;width:100%;margin:14px 0;font-size:14.5px}.prose th,.prose td{border:1px solid var(--line);padding:7px 12px;text-align:left}.prose th{background:#f1f5f9}.prose blockquote{margin:14px 0;padding:10px 16px;border-left:4px solid var(--brand);background:var(--card);color:var(--muted);border-radius:0 8px 8px 0}.prose hr{border:none;border-top:1px solid var(--line);margin:32px 0}.topic-footer{margin-top:40px;padding-top:8px;border-top:2px solid var(--line);font-size:14.5px}.topic-footer h2{font-size:17px;margin:18px 0 8px}.topic-footer ol{padding-left:22px}.topic-footer li{margin:6px 0}.hero-center{text-align:center;padding-top:48px}.hero-center .lead{margin-left:auto;margin-right:auto}.hero-center .chips{justify-content:center}.search-hero{max-width:560px;margin:34px auto 4px;text-align:left}.search-box{position:relative}.search-icon{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--muted);pointer-events:none}#home-search{width:100%;padding:15px 22px 15px 50px;font-size:16px;font-family:inherit;color:var(--ink);border-radius:999px;border:1px solid var(--line);background:var(--card);outline:none;box-shadow:0 1px 6px #0f172a0f;transition:box-shadow .15s ease,border-color .15s ease}#home-search:focus{border-color:var(--brand);box-shadow:0 2px 12px #0d94882e}#home-search::-webkit-search-cancel-button{cursor:pointer}.search-results{margin-top:12px;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 2px 10px #0f172a0d}.search-item{display:block;padding:12px 18px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}.search-item:last-child{border-bottom:none}.search-item:hover{background:#f8fafc}.search-item-title{display:block;color:var(--brand-dark);font-weight:600;font-size:15px}.search-item-excerpt{display:block;font-size:13.5px;color:var(--muted);margin-top:2px}.search-item-excerpt mark{background:#fef08a;color:inherit;padding:0 1px}.search-empty{padding:16px 18px;font-size:14px;color:var(--muted);margin:0}.prose .source-tier{font-weight:600}@media(max-width:560px){.header-inner{flex-direction:column;gap:8px}.hero h1{font-size:25px}}