:root{
  --primary:#B9473F;--primary-dark:#92362F;--secondary:#D89A45;--dark:#1E2026;--bg:#F7F4EF;--soft:#EEE9E2;--text:#2B2D31;--muted:#6F706F;--accent:#E06A3B;--white:#fff;--line:#D9D3CB;--radius:20px;--shadow:0 18px 50px rgba(30,32,38,.10);--container:min(1180px,calc(100% - 40px));
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC",system-ui,-apple-system,sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}.container{width:var(--container);margin-inline:auto}.narrow{max-width:860px}.skip-link{position:fixed;left:12px;top:12px;z-index:999;background:var(--dark);color:#fff;padding:10px 14px;border-radius:8px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}
.site-header{position:sticky;top:0;z-index:90;background:rgba(247,244,239,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(43,45,49,.08)}.header-inner{display:flex;align-items:center;gap:24px;min-height:78px}.brand{display:flex;align-items:center;gap:10px;min-width:190px}.brand img{width:44px;height:44px;object-fit:contain;border-radius:12px}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand strong{font-size:18px}.brand small{font-size:11px;color:var(--muted);margin-top:4px}.site-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}.site-nav a{font-size:14px;padding:9px 11px;border-radius:10px;color:#4a4b4e}.site-nav a:hover,.site-nav a[aria-current="page"]{background:var(--soft);color:var(--primary)}.menu-toggle{display:none}.search-open,.menu-toggle{border:1px solid var(--line);background:var(--white);border-radius:12px;padding:9px 13px;cursor:pointer}.search-open:hover,.menu-toggle:hover{border-color:var(--primary);color:var(--primary)}
.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:200;background:rgba(30,32,38,.72);display:grid;place-items:center;padding:20px}.search-panel{width:min(680px,100%);background:var(--bg);border-radius:24px;padding:34px;position:relative;box-shadow:var(--shadow)}.search-close{position:absolute;right:18px;top:16px;width:40px;height:40px;border:0;border-radius:50%;background:var(--soft);font-size:28px;cursor:pointer}.search-form label{display:block;font-weight:700;margin-bottom:8px}.search-row{display:flex;gap:10px}.search-row input{flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff}.search-row input:focus{outline:2px solid rgba(185,71,63,.2);border-color:var(--primary)}
.hero{padding:62px 0 56px}.hero-home{background:linear-gradient(180deg,#23252b 0,#1e2026 100%);color:#fff}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center}.hero-copy h1{font-size:clamp(38px,5.2vw,66px);line-height:1.1;letter-spacing:-1.5px;margin:12px 0 20px}.hero-copy>p{font-size:18px;color:#d7d8dc;max-width:720px}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:800;font-size:13px;letter-spacing:.08em;text-transform:uppercase}.eyebrow:before{content:"";width:18px;height:2px;background:currentColor}.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;border-radius:12px;font-weight:800;border:1px solid transparent}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-dark)}.btn.secondary{background:var(--secondary);color:#241d14}.btn.ghost{border-color:var(--line);background:transparent}.hero .btn.ghost{border-color:#575960;color:#fff}.hero-points{display:flex;gap:18px;flex-wrap:wrap;list-style:none;padding:0;margin:26px 0 0;color:#c6c7cb;font-size:13px}.hero-points li:before{content:"•";color:var(--secondary);margin-right:6px}.hero-media{margin:0}.hero-media img{border-radius:26px;box-shadow:0 30px 70px rgba(0,0,0,.28);aspect-ratio:4/3;object-fit:cover}.hero-media figcaption{font-size:13px;color:#b7b8bc;margin-top:10px}
.section{padding:76px 0}.section-light{background:#fff}.section-soft{background:var(--soft)}.section-dark{background:var(--dark);color:#fff}.section-head{max-width:760px;margin-bottom:34px}.section-head h2,.page-hero h1{font-size:clamp(30px,4vw,46px);line-height:1.2;margin:9px 0 14px}.section-head p{color:var(--muted);margin:0}.section-head.inverse p{color:#bfc0c4}.topic-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.topic-link{display:flex;flex-direction:column;min-height:190px;padding:24px;background:var(--soft);border-radius:18px;border:1px solid transparent}.topic-link strong{font-size:20px;margin-bottom:10px}.topic-link span{color:var(--muted);font-size:14px}.topic-link:hover{border-color:#d3c5b9;transform:translateY(-2px)}.split-grid,.editorial-grid,.banner-grid,.about-strip-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.split-grid h2,.editorial-grid h2,.banner-grid h2,.about-strip-grid h2{font-size:36px;line-height:1.25;margin:10px 0 16px}.split-grid p,.editorial-grid p,.banner-grid p,.about-strip-grid p{color:var(--muted)}.split-grid img,.editorial-image img,.banner-grid img,.about-strip-grid img{border-radius:22px;aspect-ratio:4/3;object-fit:cover}.text-link{display:inline-flex;font-weight:800;color:var(--primary);margin-top:8px}.text-link:after{content:" →";margin-left:4px}.feature-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-columns article{padding:26px;border:1px solid #3f4249;border-radius:18px;background:#25282e}.feature-columns h3{font-size:22px;margin:0 0 10px}.feature-columns p{color:#c8c9cc}.feature-columns a{color:#f0b668;font-weight:800}.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px;display:flex;flex-direction:column}.article-card h3{font-size:20px;line-height:1.4;margin:8px 0}.article-card h3 a:hover{color:var(--primary)}.article-card p{color:var(--muted);font-size:14px}.article-card .text-link{margin-top:auto}.scenario-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.scenario-list>a{display:flex;gap:18px;padding:20px;border-top:1px solid var(--line);background:rgba(255,255,255,.42)}.scenario-list>a:hover{background:#fff}.scenario-list>a>span{font-weight:900;color:var(--secondary);font-size:22px}.scenario-list strong{font-size:18px}.scenario-list p{margin:4px 0 0;color:var(--muted);font-size:14px}.feature-banner{padding-top:30px}.banner-grid{background:#fff;border:1px solid var(--line);border-radius:26px;padding:28px 34px}.faq-preview,.faq-page{display:grid;gap:10px}.faq-preview details,.faq-page details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 18px}.faq-preview summary,.faq-page summary{cursor:pointer;font-weight:800;padding:17px 0}.faq-preview p,.faq-page p{color:var(--muted);margin:0 0 18px}.section-action{margin-top:24px}.about-strip{padding-top:44px}.about-strip-grid{background:var(--dark);color:#fff;border-radius:26px;padding:36px}.about-strip-grid p{color:#c7c8ca}.about-strip-grid img{max-height:280px;margin-left:auto}
.main-space{padding-top:28px}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0 0 18px;color:var(--muted);font-size:13px}.breadcrumb li:not(:last-child):after{content:"/";margin-left:8px;color:#aaa}.breadcrumb a:hover{color:var(--primary)}.page-hero{padding:28px 0 58px}.page-hero-grid{display:grid;grid-template-columns:1fr .78fr;gap:48px;align-items:center}.page-hero h1{font-size:clamp(38px,5vw,58px)}.page-hero p{font-size:18px;color:var(--muted);max-width:760px}.page-hero img{border-radius:24px;aspect-ratio:4/3;object-fit:cover}.prose-grid{max-width:900px}.prose-grid h2{font-size:30px;line-height:1.3;margin:0 0 14px}.prose-grid p{font-size:17px;color:#47484b}.info-note{margin-top:20px;padding:18px 20px;background:#fff4ea;border-left:4px solid var(--accent);border-radius:10px}.domain-box{display:inline-flex;flex-direction:column;padding:20px 24px;margin-top:18px;border-radius:16px;background:var(--dark);color:#fff}.domain-box span{font-size:12px;color:#b7b8bc}.domain-box strong{font-size:24px}.check-list{padding-left:18px;color:#47484b}.check-list li{margin:7px 0}.step-list{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.step-list span{padding:9px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:800}.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.link-grid a{display:flex;flex-direction:column;padding:22px;border:1px solid #474a52;border-radius:16px;background:#25282e}.link-grid strong{font-size:18px}.link-grid span{color:#bbbcc0;font-size:14px;margin-top:6px}.link-grid a:hover{border-color:var(--secondary)}.topic-route-list{display:grid;gap:28px}.topic-route{display:grid;grid-template-columns:.78fr 1fr;gap:34px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.topic-route:nth-child(even){grid-template-columns:1fr .78fr}.topic-route:nth-child(even) img{order:2}.topic-route img{border-radius:16px;aspect-ratio:16/10;object-fit:cover}.topic-route h2{font-size:31px;line-height:1.25;margin:8px 0 12px}.topic-route p{color:var(--muted)}.topic-route ul{padding-left:20px}.topic-route li{margin:8px 0}.topic-route a{color:var(--primary);font-weight:800}.faq-page{max-width:900px}.faq-page details{padding:0 22px}.faq-page summary{font-size:18px}.article-page{padding-bottom:72px}.article-header{max-width:900px;padding-top:22px;padding-bottom:34px}.article-header h1{font-size:clamp(38px,5vw,58px);line-height:1.16;margin:10px 0 18px}.lead{font-size:20px;color:var(--muted)}.article-meta{font-size:13px;color:var(--muted)}.article-body{max-width:900px}.article-body>section{padding:26px 0;border-top:1px solid var(--line)}.article-body h2{font-size:30px;line-height:1.3}.article-body p{font-size:17px;color:#45464a}.article-next{margin-top:40px;padding:30px;border-radius:22px;background:var(--dark);color:#fff}.article-next h2{margin-top:0}.search-page{padding:50px 0 80px}.page-search{margin:30px 0}.empty-state{margin-top:30px;padding:30px;background:#fff;border:1px dashed var(--line);border-radius:18px}.search-results h2{margin-top:36px}.not-found{max-width:780px;margin:70px auto;padding:50px;background:#fff;border-radius:24px;text-align:center;border:1px solid var(--line)}
.site-footer{background:#17191e;color:#fff;padding:58px 0 26px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px}.footer-grid h2{font-size:17px;margin:0 0 14px}.footer-grid p{color:#aaaeb4;max-width:520px}.footer-grid section{display:flex;flex-direction:column;gap:9px}.footer-grid a{color:#c9cbd0;font-size:14px}.footer-grid a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #30333a;margin-top:38px;padding-top:22px;color:#898d94;font-size:12px}.back-top{border:1px solid #444850;background:#22252b;color:#fff;border-radius:10px;padding:8px 12px;cursor:pointer}
@media(max-width:1024px){.site-nav{position:absolute;top:78px;left:20px;right:20px;background:var(--bg);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:12px;display:none;flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.menu-toggle{display:block;margin-left:auto}.search-open{margin-left:0}.hero-grid,.page-hero-grid{grid-template-columns:1fr}.topic-links{grid-template-columns:1fr 1fr}.article-list{grid-template-columns:1fr 1fr}.hero-media img{max-height:520px;width:100%}.page-hero img{max-height:460px;width:100%}}
@media(max-width:768px){:root{--container:min(100% - 28px,1180px)}.header-inner{gap:10px;min-height:70px}.brand{min-width:0}.brand small{display:none}.site-nav{top:70px;left:14px;right:14px}.hero{padding:44px 0}.hero-grid{gap:30px}.hero-copy h1{font-size:42px}.hero-copy>p{font-size:16px}.section{padding:56px 0}.topic-links,.feature-columns,.article-list,.scenario-list,.link-grid{grid-template-columns:1fr}.split-grid,.editorial-grid,.banner-grid,.about-strip-grid{grid-template-columns:1fr;gap:30px}.topic-route,.topic-route:nth-child(even){grid-template-columns:1fr}.topic-route:nth-child(even) img{order:0}.footer-grid{grid-template-columns:1fr 1fr}.page-hero{padding-bottom:38px}.page-hero h1{font-size:42px}.article-header h1{font-size:40px}.search-row{flex-direction:column}}
@media(max-width:600px){.brand img{width:38px;height:38px}.brand strong{font-size:16px}.search-open,.menu-toggle{padding:8px 10px;font-size:13px}.hero-copy h1,.page-hero h1,.article-header h1{font-size:36px}.button-row{flex-direction:column}.btn{width:100%}.hero-points{display:block}.hero-points li{margin:7px 0}.topic-links{grid-template-columns:1fr}.split-grid h2,.editorial-grid h2,.banner-grid h2,.about-strip-grid h2,.prose-grid h2{font-size:27px}.section-head h2{font-size:32px}.banner-grid,.about-strip-grid{padding:24px}.topic-route{padding:16px}.topic-route h2{font-size:26px}.article-next{padding:22px}.footer-grid{grid-template-columns:1fr}.footer-bottom{align-items:flex-start;gap:18px;flex-direction:column}.search-panel{padding:28px 20px}}
@media(max-width:375px){:root{--container:calc(100% - 22px)}.brand span{max-width:90px}.brand strong{white-space:nowrap}.hero-copy h1,.page-hero h1,.article-header h1{font-size:32px}.section{padding:48px 0}.hero-media figcaption{font-size:12px}.site-nav{left:11px;right:11px}}