:root{--ink:#1d2a33;--muted:#5b6770;--line:#e2e6e9;--bg:#ffffff;--soft:#f4f7f8;--accent:#0f6e8c;--accent2:#e86a33}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--accent)}a:hover{color:#0a4f66}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.top{background:var(--ink);color:#fff}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.brand{color:#fff;text-decoration:none;font-weight:700;font-size:19px;letter-spacing:.2px}
.brand span{color:#9fd3e3;font-weight:500}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#dfe9ee;text-decoration:none;padding:8px 10px;border-radius:6px;font-size:15px}
.nav a:hover,.nav a.on{background:rgba(255,255,255,.12);color:#fff}
.hero{background:linear-gradient(135deg,#0f6e8c 0%,#1d2a33 100%);color:#fff;padding:48px 0 40px}
.hero h1{font-size:36px;line-height:1.2;margin:0 0 12px;max-width:760px}
.hero p{font-size:18px;max-width:720px;margin:0 0 10px;color:#e3eef2}
.hero .tag{display:inline-block;background:rgba(255,255,255,.14);padding:4px 10px;border-radius:20px;font-size:13px;margin-bottom:14px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:28px 0}
.card{border:1px solid var(--line);border-radius:10px;padding:18px;background:#fff}
.card h2,.card h3{font-size:19px;margin:0 0 8px}
.card p{margin:0 0 8px;color:var(--muted);font-size:15.5px}
.facts{background:var(--soft);border-radius:10px;padding:18px 20px;margin:24px 0}
.facts dt{font-weight:700;margin-top:8px}.facts dd{margin:2px 0 0}
.home h2{font-size:26px;margin:34px 0 10px}
.home p,.home li{font-size:17px}
.foot{background:var(--soft);border-top:1px solid var(--line);margin-top:48px;padding:28px 0;font-size:15px;color:var(--muted)}
.foot nav a{margin-right:14px}
.g-article a,.g-wrap a{color:var(--accent)}
@media (max-width:600px){.hero h1{font-size:28px}.brand{font-size:17px}.nav a{padding:6px 8px;font-size:14px}}

.g-wrap{max-width:860px;margin:0 auto;padding:24px 16px 48px}
.g-crumbs{font-size:14px;margin:8px 0 18px;color:#666}
.g-crumbs a{color:inherit;text-decoration:underline}
.g-article h1{font-size:34px;line-height:1.25;margin:0 0 10px}
.g-article h2{font-size:24px;line-height:1.3;margin:30px 0 10px}
.g-article h3{font-size:19px;line-height:1.35;margin:22px 0 8px}
.g-article p,.g-article li{font-size:17px;line-height:1.7;margin:0 0 14px}
.g-article ul,.g-article ol{padding-left:22px;margin:0 0 16px}
.g-article ul li{list-style:disc}.g-article ol li{list-style:decimal}
.g-article a{text-decoration:underline}
.g-article table{border-collapse:collapse;width:100%;margin:0 0 18px;font-size:16px}
.g-article th,.g-article td{border:1px solid #ddd;padding:8px 10px;text-align:left;vertical-align:top}
.g-article th{background:#f4f4f4}
.g-byline{font-size:14px;color:#666;margin-bottom:22px}
.g-note{background:#fff8e1;border-left:4px solid #e0a800;padding:12px 14px;margin:0 0 18px;font-size:15px;line-height:1.6}
.g-faq,.g-sources,.g-related{margin-top:32px;border-top:1px solid #e5e5e5;padding-top:8px}
.g-sources li,.g-related li{font-size:15px}
.g-hub-list{list-style:none;padding:0}
.g-hub-list li{list-style:none;border-bottom:1px solid #eee;padding:14px 0}
.g-hub-list a{font-size:19px;font-weight:600}
.g-hub-list p{margin:6px 0 0;font-size:16px}
.g-notice{background:#fff8e1;border-bottom:1px solid #ead27a;color:#3d3300;font-size:14px;line-height:1.5;padding:10px 16px;text-align:center}
.g-notice a{color:inherit;text-decoration:underline}
.g-disclaimer{font-size:13px;line-height:1.5;opacity:.9;margin-top:8px}
@media (max-width:600px){.g-article h1{font-size:27px}.g-article h2{font-size:21px}.g-article table{display:block;overflow-x:auto}}