:root{
  --paper:#f6f4ee;
  --paper-2:#efece2;
  --ink:#16233a;
  --ink-2:#3a4660;
  --accent:#b23a2b;
  --accent-2:#8a2c20;
  --line:#d8d2c4;
  --white:#fbfaf6;
  --radius:6px;
  --font-head:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-body:"Noto Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--paper);color:var(--ink);line-height:1.75;font-size:16px}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{font-family:var(--font-head);line-height:1.3;font-weight:600}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{background:var(--ink);color:var(--white);position:sticky;top:0;z-index:50}
.header-inner{max-width:1180px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:38px;width:auto}
.brand-name{font-family:var(--font-head);font-size:1.15rem;color:var(--white);letter-spacing:.02em}
.main-nav{display:flex;gap:4px;align-items:center}
.main-nav a{color:var(--white);padding:8px 14px;border-radius:var(--radius);font-size:.94rem}
.main-nav a:hover{background:rgba(255,255,255,.12);color:var(--white)}
.main-nav a.is-active{background:var(--accent)}
.nav-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.4);color:var(--white);padding:8px 14px;border-radius:var(--radius);cursor:pointer;font-size:.95rem}

/* Hero band */
.hero-band{background:var(--ink);color:var(--white);padding:0}
.hero-inner{max-width:1180px;margin:0 auto;padding:44px 20px;display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.hero-copy .eyebrow{font-size:.82rem;letter-spacing:.22em;text-transform:uppercase;color:#cdd6e4;margin-bottom:14px}
.hero-copy h1{font-size:2.3rem;line-height:1.25;margin-bottom:16px}
.hero-copy h1 em{color:#e8b04b;font-style:normal}
.hero-copy p{color:#cdd6e4;max-width:46ch;font-size:1rem}
.hero-copy .cta-row{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 20px;border-radius:var(--radius);font-weight:600;font-size:.96rem}
.btn-primary{background:var(--accent);color:var(--white)}
.btn-primary:hover{background:var(--accent-2);color:var(--white)}
.btn-ghost{border:1px solid rgba(255,255,255,.5);color:var(--white)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:var(--white)}
.hero-media img{border-radius:var(--radius);box-shadow:0 18px 40px rgba(0,0,0,.35)}

/* Top ticker strip */
.ticker{background:var(--accent);color:var(--white)}
.ticker-inner{max-width:1180px;margin:0 auto;padding:8px 20px;font-size:.9rem;display:flex;gap:8px}
.ticker b{letter-spacing:.02em}

/* Sections */
section{padding:44px 0}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px;border-bottom:3px double var(--line);padding-bottom:10px}
.sec-head h2{font-size:1.5rem}
.sec-head .more{font-size:.9rem;color:var(--ink-2)}
.sec-head .more:hover{color:var(--accent)}

/* Home grid layout: left index rail + right content */
.home-grid{display:grid;grid-template-columns:300px 1fr;gap:34px;align-items:start}
.index-rail{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:76px}
.index-rail h3{font-size:1.05rem;margin-bottom:14px;border-left:4px solid var(--accent);padding-left:10px}
.index-rail ol{list-style:none}
.index-rail li{margin-bottom:10px;font-size:.92rem;line-height:1.5}
.index-rail .rank{color:var(--accent);font-weight:700;font-family:var(--font-head);margin-right:6px}

/* Cards */
.card-list{list-style:none;display:grid;gap:14px}
.card{display:grid;grid-template-columns:150px 1fr;gap:16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:12px;align-items:center}
.card img{width:150px;height:96px;object-fit:cover;border-radius:4px}
.card h3{font-size:1.05rem;margin-bottom:6px}
.card p{font-size:.9rem;color:var(--ink-2)}
.card .meta{font-size:.82rem;color:var(--ink-2);margin-top:6px}

/* Feature grid (home visual blocks) */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.feat img{width:100%;height:150px;object-fit:cover}
.feat .feat-body{padding:16px}
.feat h3{font-size:1.05rem;margin-bottom:8px}
.feat p{font-size:.9rem;color:var(--ink-2)}

/* Split feature (home) */
.split-feature{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}
.split-feature .media img{border-radius:var(--radius)}
.split-feature .copy h3{font-size:1.35rem;margin-bottom:12px}
.split-feature .copy p{color:var(--ink-2);margin-bottom:12px}

/* CTA */
.cta-block{background:var(--ink);color:var(--white);border-radius:var(--radius);padding:40px;text-align:center}
.cta-block h2{font-size:1.5rem;margin-bottom:12px;color:var(--white)}
.cta-block p{color:#cdd6e4;max-width:52ch;margin:0 auto 20px}

/* Article page */
.article-wrap{display:grid;grid-template-columns:1fr 300px;gap:34px;align-items:start}
.article-main{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.breadcrumb{font-size:.86rem;color:var(--ink-2);margin-bottom:14px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--accent)}
.article-main h1{font-size:1.8rem;margin-bottom:10px}
.article-meta{font-size:.86rem;color:var(--ink-2);display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px;border-bottom:1px solid var(--line);padding-bottom:14px}
.article-hero{width:100%;border-radius:var(--radius);margin-bottom:20px;object-fit:cover}
.article-main p{margin-bottom:16px;color:#22304a}
.article-main h2{font-size:1.3rem;margin:26px 0 12px;border-left:4px solid var(--accent);padding-left:12px}
.article-main h3{font-size:1.1rem;margin:20px 0 10px}
.article-main ul,.article-main ol{margin:0 0 16px 22px}
.article-main li{margin-bottom:8px}
.inline-figure{margin:20px 0}
.inline-figure img{border-radius:var(--radius);margin-bottom:6px}
.inline-figure figcaption{font-size:.84rem;color:var(--ink-2)}
.fig-right{float:right;width:46%;margin:6px 0 14px 20px;border-radius:var(--radius)}
.fig-right + *{clear:none}
.summary-box{background:var(--paper-2);border-left:4px solid var(--accent);padding:16px 18px;border-radius:0 var(--radius) var(--radius) 0;margin:18px 0}
.faq-item{margin-bottom:14px}
.faq-item h3{font-size:1.05rem;margin-bottom:6px}
.article-aside{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:76px}
.article-aside h3{font-size:1.05rem;margin-bottom:14px;border-left:4px solid var(--accent);padding-left:10px}
.article-aside ul{list-style:none}
.article-aside li{margin-bottom:12px;font-size:.92rem;line-height:1.5}
.article-aside a{font-weight:600}

/* Category page */
.cat-header{margin-bottom:26px}
.cat-header h1{font-size:1.9rem;margin-bottom:10px}
.cat-header p{color:var(--ink-2);max-width:66ch}

/* Footer */
.site-footer{background:var(--ink);color:#cdd6e4;margin-top:40px;padding:40px 0 28px}
.footer-grid{max-width:1180px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
.footer-grid h4{color:var(--white);font-size:1rem;margin-bottom:12px;font-family:var(--font-head)}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:8px;font-size:.9rem}
.footer-grid a{color:#cdd6e4}
.footer-grid a:hover{color:var(--white)}
.footer-grid p{font-size:.9rem;margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:28px;padding-top:18px}
.footer-bottom-inner{max-width:1180px;margin:0 auto;padding:0 20px;font-size:.84rem;color:#9aa6b8;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Home module: data band */
.data-band{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}
.data-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.data-item .num{font-family:var(--font-head);font-size:1.8rem;color:var(--accent);font-weight:700}
.data-item .label{font-size:.88rem;color:var(--ink-2);margin-top:4px}

/* Topic grid (zhinan) */
.topic-list{list-style:none;display:grid;gap:12px}
.topic{display:grid;grid-template-columns:1fr auto;gap:16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:16px;align-items:center}
.topic h3{font-size:1.05rem;margin-bottom:6px}
.topic p{font-size:.9rem;color:var(--ink-2)}
.topic .arrow{color:var(--accent);font-size:1.4rem}

/* Two-col home split rows */
.home-two{display:grid;grid-template-columns:1fr 1fr;gap:18px}

@media (max-width:768px){
  .main-nav{display:none;flex-direction:column;width:100%;background:var(--ink);padding:12px}
  .main-nav.open{display:flex}
  .nav-toggle{display:inline-block}
  .header-inner{flex-wrap:wrap}
  .hero-inner,.home-grid,.article-wrap,.split-feature,.home-two{grid-template-columns:1fr}
  .feat-grid,.data-band{grid-template-columns:1fr 1fr}
  .card{grid-template-columns:1fr}
  .card img{width:100%;height:auto}
  .fig-right{float:none;width:100%;margin:14px 0}
  .index-rail,.article-aside{position:static}
  .footer-grid{grid-template-columns:1fr;gap:20px}
  section{padding:32px 0}
  .hero-copy h1{font-size:1.7rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}