:root{
  --ink:#16233b;
  --ink-2:#22324e;
  --paper:#f4f5f6;
  --paper-2:#e9ecef;
  --line:#d6dbe1;
  --accent:#c98a3d;
  --accent-2:#a86f2c;
  --text:#2b3648;
  --muted:#6b7686;
  --white:#ffffff;
  --radius:10px;
  --shadow:0 14px 40px rgba(22,35,59,.10);
  --serif:"Georgia","Times New Roman",serif;
  --sans:"Geist","Outfit","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.7;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-2);text-decoration:none}
a:hover{color:var(--accent)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* ===== Header / nav ===== */
.site-header{background:var(--ink);color:#eef1f5;position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:40px;height:40px;object-fit:contain}
.brand-name{font-size:1.2rem;font-weight:700;color:#fff;letter-spacing:.02em}
.brand-name small{display:block;font-size:.68rem;font-weight:500;color:#aeb7c7;letter-spacing:.12em}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:#dfe5ee;font-size:.95rem;font-weight:500}
.nav a:hover,.nav a.is-active{color:#f0c68a}
.nav-toggle{display:none;background:none;border:1px solid #3a4b66;color:#dfe5ee;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:.9rem}
@media(max-width:820px){
  .nav-toggle{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--ink-2);flex-direction:column;align-items:flex-start;padding:12px 20px;gap:14px;display:none}
  .nav.open{display:flex}
  .header-inner{flex-wrap:wrap}
}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:#b8c2d2;margin-top:60px}
.footer-inner{padding:42px 0 30px;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px}
.footer-inner h4{color:#fff;font-size:.95rem;margin-bottom:12px}
.footer-inner a{color:#c7d0de;font-size:.9rem;display:block;margin-bottom:8px}
.footer-inner a:hover{color:#f0c68a}
.footer-meta{border-top:1px solid #2c3d58;padding:18px 0 24px;font-size:.85rem;color:#94a0b2;display:flex;flex-wrap:wrap;gap:8px 24px}

/* ===== Page hero / title ===== */
.page-head{padding:44px 0 26px;border-bottom:1px solid var(--line);background:var(--paper-2)}
.page-head h1{font-size:2.1rem;color:var(--ink);line-height:1.25;max-width:760px}
.page-head p{color:var(--muted);max-width:720px;margin-top:12px}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{margin:0 8px}

/* ===== Home sections ===== */
.home-hero{background:var(--ink);color:#eef1f5;padding:56px 0 48px}
.home-hero .wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:34px;align-items:center}
.hero-copy h1{font-size:2.4rem;line-height:1.2;color:#fff;margin-bottom:16px}
.hero-copy p{color:#c5cedb;font-size:1.05rem;max-width:520px}
.hero-img{border-radius:var(--radius);box-shadow:var(--shadow)}
.home-section{padding:44px 0}
.home-section .sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px;border-bottom:2px solid var(--ink)}
.home-section .sec-head h2{font-size:1.5rem;color:var(--ink)}
.home-section .sec-head a{font-size:.9rem;color:var(--accent-2)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .2s}
.card:hover{transform:translateY(-4px)}
.card img{height:190px;width:100%;object-fit:cover}
.card-body{padding:18px}
.card-body h3{font-size:1.08rem;color:var(--ink);line-height:1.4;margin-bottom:8px}
.card-body p{font-size:.9rem;color:var(--muted)}
.card-body .date{font-size:.78rem;color:#9aa3b1;margin-top:10px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.split .left h2{font-size:1.6rem;color:var(--ink);margin-bottom:14px;line-height:1.3}
.split .left p{color:var(--muted);margin-bottom:14px}
.tick-list{list-style:none;margin-top:6px}
.tick-list li{padding:8px 0;border-bottom:1px solid var(--line);font-size:.96rem;color:var(--ink-2)}
.tick-list li strong{color:var(--accent-2)}
.cta-strip{background:var(--accent);color:#fff;border-radius:var(--radius);padding:30px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.cta-strip h3{font-size:1.35rem;margin:0}
.cta-strip p{color:#fff8ee;max-width:520px;margin-top:6px}
.btn{display:inline-block;background:var(--ink);color:#fff;padding:12px 22px;border-radius:6px;font-weight:600}
.btn:hover{background:#0f1c30;color:#fff}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-align:center}
.stat b{display:block;font-size:1.7rem;color:var(--ink);font-family:var(--sans)}
.stat span{font-size:.85rem;color:var(--muted)}

/* ===== Article layout ===== */
.article-wrap{display:grid;grid-template-columns:1fr 320px;gap:38px;align-items:start;padding:40px 0}
.article-body{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.article-body h1{font-size:1.9rem;color:var(--ink);line-height:1.3;margin-bottom:10px}
.article-meta{font-size:.85rem;color:var(--muted);margin-bottom:22px;display:flex;flex-wrap:wrap;gap:6px 16px;border-bottom:1px solid var(--line);padding-bottom:16px}
.article-meta .cat{color:var(--accent-2);font-weight:600}
.article-body h2{font-size:1.4rem;color:var(--ink);margin:28px 0 14px;border-left:4px solid var(--accent);padding-left:12px}
.article-body h3{font-size:1.12rem;color:var(--ink-2);margin:20px 0 10px}
.article-body p{margin-bottom:16px}
.article-body ul,.article-body ol{margin:0 0 16px 22px}
.article-body li{margin-bottom:6px}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:.82rem;color:var(--muted);text-align:center;margin-top:8px}
.inline-figure{margin:20px 0;border-radius:var(--radius);overflow:hidden}
.split-figure{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:20px 0}
.article-aside{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:sticky;top:90px}
.article-aside h3{font-size:1rem;color:var(--ink);margin-bottom:16px;letter-spacing:.02em}
.article-aside a{display:block;padding:11px 0;border-bottom:1px solid var(--line);font-size:.92rem;color:var(--ink-2);line-height:1.4}
.article-aside a:last-child{border-bottom:none}
.article-aside a:hover{color:var(--accent)}
.article-aside .adate{display:block;font-size:.75rem;color:var(--muted);margin-top:3px}
.article-back{margin-top:26px;font-size:.9rem;color:var(--accent-2)}

/* ===== Category list ===== */
.cat-list{display:grid;grid-template-columns:1fr;gap:18px;padding:34px 0}
.cat-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:center}
.cat-item img{width:110px;height:82px;object-fit:cover;border-radius:6px}
.cat-item h3{font-size:1.12rem;color:var(--ink)}
.cat-item p{font-size:.9rem;color:var(--muted);margin-top:6px}
.cat-item .date{font-size:.78rem;color:#9aa3b1;margin-top:8px}

/* ===== Responsive ===== */
@media(max-width:900px){
  .home-hero .wrap{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .article-wrap{grid-template-columns:1fr}
  .article-aside{position:static;margin-top:8px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .split-figure{grid-template-columns:1fr}
}
@media(max-width:560px){
  body{font-size:15px}
  .home-hero{padding:38px 0}
  .hero-copy h1{font-size:1.7rem}
  .page-head h1{font-size:1.5rem}
  .article-body{padding:22px}
  .cat-item{grid-template-columns:1fr}
  .cat-item img{width:100%;height:150px}
  .footer-inner{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}