:root{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color-scheme:light;--ink:#07111f;--muted:#607086;--panel:#fff;--line:rgba(10,20,36,.12);--a:#0f4c81;--b:#081426;--c:#f2c74f}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:#f5f7fb;color:var(--ink)}a{text-decoration:none;color:inherit}.theme-cn{--a:#8a1135;--b:#0a1932;--c:#f2c74f;background:linear-gradient(180deg,#eef1f6,#f8fafc)}.theme-map{--a:#0f766e;--b:#113a38;--c:#f59e0b;background:#eef8f5}.theme-can{--a:#0f4c81;--b:#102a43;--c:#d71920;background:#edf5fb}.theme-vn{--a:#b91c1c;--b:#3b1010;--c:#facc15;background:#fff7ed}.theme-talk{--a:#4f46e5;--b:#0f1020;--c:#22d3ee;background:#f4f4ff}.theme-ca{--a:#0f6b55;--b:#102b24;--c:#e11d48;background:#f4faf6}.site-header{position:sticky;top:16px;z-index:20;display:flex;align-items:center;gap:18px;max-width:1180px;margin:16px auto 0;padding:12px 14px;border:1px solid var(--line);border-radius:28px;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);box-shadow:0 22px 70px rgba(16,31,56,.14)}.brand{display:flex;align-items:center;gap:12px;min-width:310px}.brand img{width:60px;height:60px}.brand b{display:block;font-size:21px}.brand small{display:block;color:var(--muted);margin-top:3px}.main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}.main-nav a{padding:13px 17px;border-radius:18px;font-weight:900}.main-nav a.is-current,.main-nav a:hover{background:var(--b);color:#fff}.menu-btn{display:none;width:44px;height:44px;border:0;border-radius:16px;background:var(--b);padding:10px}.menu-btn span{display:block;height:2px;margin:5px 0;background:#fff;border-radius:4px}.hero{max-width:1180px;margin:52px auto 0;padding:44px;display:grid;grid-template-columns:minmax(0,1.1fr) 390px;gap:30px;border-radius:38px;overflow:hidden}.hero-portal{background:radial-gradient(circle at 10% 18%,color-mix(in srgb,var(--a) 72%,transparent),transparent 34%),linear-gradient(135deg,var(--b),#10284d 62%,#2d1026);color:#fff}.hero-map{background:linear-gradient(135deg,#ffffff,#e7fbf5);border:1px solid rgba(15,118,110,.18);box-shadow:0 28px 80px rgba(15,118,110,.14)}.hero-dashboard{background:linear-gradient(135deg,#0b2741,#17699d);color:#fff}.hero-editorial{background:linear-gradient(135deg,#fff8e1,#fff),radial-gradient(circle at 82% 18%,rgba(185,28,28,.18),transparent 34%);border:1px solid rgba(185,28,28,.16)}.hero-community{background:linear-gradient(135deg,#0f1020,#24245e 70%,#113a48);color:#fff}.hero-travel{background:linear-gradient(135deg,#ffffff,#e7f7ee);border:1px solid rgba(15,107,85,.16);box-shadow:0 28px 80px rgba(15,107,85,.13)}.eyebrow{display:inline-block;color:var(--c);font-weight:900;font-size:13px;letter-spacing:.14em;text-transform:uppercase}.hero h1{font-size:58px;line-height:1.04;margin:15px 0 18px;letter-spacing:0}.hero p{font-size:19px;line-height:1.9;color:color-mix(in srgb,currentColor 78%,transparent)}.actions,.tool-list{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:999px;font-weight:900;border:1px solid transparent}.primary{background:linear-gradient(135deg,#fff1b8,var(--c));color:#07111f}.dark{background:var(--b);color:#fff}.ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:currentColor}.full{width:100%}.official-card{background:rgba(255,255,255,.92);color:#07111f;border-radius:30px;padding:28px;border:1px solid rgba(255,255,255,.58);box-shadow:0 25px 70px rgba(0,0,0,.16)}.official-card img{width:72px;height:72px}.official-card h2{font-size:30px;margin:14px 0 8px}.official-card p{font-size:16px;color:#4b5c70}.feature-grid,.tool-panel,.content-strip,.subpage{max-width:1180px;margin:22px auto}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.feature-grid article{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;min-height:250px;box-shadow:0 18px 42px rgba(22,32,54,.06)}.feature-grid span{color:var(--a);font-weight:900}.feature-grid h2{font-size:24px}.feature-grid p,.article-grid p,.keyword-grid p,.faq-list p{color:#5b6b7d;line-height:1.82}.feature-grid a,.article-grid a,.keyword-grid a,.text-link{color:var(--a);font-weight:900}.tool-panel{display:grid;grid-template-columns:1fr 1.2fr;gap:22px;align-items:center;background:var(--b);color:#fff;border-radius:32px;padding:30px}.tool-panel p{color:rgba(255,255,255,.72);line-height:1.8}.tool-link{display:inline-flex;align-items:center;justify-content:center;padding:13px 16px;border-radius:18px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);font-weight:900}.content-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.content-strip article{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px}.content-strip b{display:block;font-size:34px;color:var(--a)}.content-strip span{color:var(--muted)}.page-title{padding:42px;border-radius:30px;background:#fff;border:1px solid var(--line)}.page-title h1{font-size:44px;margin:10px 0}.page-title p{color:#5b6b7d;line-height:1.85}.article-grid,.keyword-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:18px}.article-grid article,.keyword-grid article,.faq-list details{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px}.faq-list{display:grid;gap:16px;margin-top:18px}.faq-list summary{font-size:20px;font-weight:900;cursor:pointer}.site-footer{max-width:1180px;margin:36px auto 24px;padding:24px;border-radius:28px;background:#081426;color:#fff;display:flex;gap:24px;justify-content:space-between}.site-footer img{width:54px;height:54px;float:left;margin-right:12px}.site-footer p{max-width:560px;color:#c8d4e1;line-height:1.7}.site-footer nav{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;align-content:flex-start}.site-footer a{padding:9px 12px;border-radius:14px;border:1px solid rgba(255,255,255,.16)}@media (max-width:900px){.site-header{position:relative;top:auto;margin:10px 10px 0;display:grid;grid-template-columns:1fr auto;border-radius:22px}.brand{min-width:0}.brand img{width:48px;height:48px}.brand b{font-size:17px}.brand small{font-size:12px}.menu-btn{display:block}.main-nav{display:none;grid-column:1/-1;margin:8px 0 0;overflow:auto;padding-bottom:2px}.main-nav.is-open{display:flex}.main-nav a{white-space:nowrap}.hero{margin:16px 10px 0;padding:26px;grid-template-columns:1fr;border-radius:28px}.hero h1{font-size:36px}.hero p{font-size:16px}.actions{display:grid;grid-template-columns:1fr 1fr}.actions .ghost{grid-column:1/-1}.official-card{padding:22px}.feature-grid,.article-grid,.keyword-grid,.content-strip,.tool-panel{grid-template-columns:1fr}.feature-grid,.tool-panel,.content-strip,.subpage{margin:14px 10px}.page-title{padding:26px}.page-title h1{font-size:32px}.site-footer{display:block;margin:18px 10px}.site-footer nav{justify-content:flex-start}.btn{padding:0 16px}}