:root{
  --bg:#f6f2ee;
  --paper:#fffdf9;
  --paper2:#f0e8df;
  --ink:#251d1a;
  --body:#4e423c;
  --muted:#80716a;
  --accent:#c94b3f;
  --accent2:#e56f54;
  --gold:#b68a42;
  --deep:#2c2320;
  --line:rgba(110,76,61,.16);
  --shadow:0 12px 30px rgba(61,42,34,.10);
  --max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--body);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.72;overflow-x:hidden}
body.locked{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
img{max-width:100%}
.wrap,.page-wrap{max-width:var(--max);margin:auto;padding-left:18px;padding-right:18px}

.topline{position:fixed;z-index:70;top:0;left:0;right:0;height:24px;background:var(--deep);color:#f7e8dc;font-size:12px}
.topline-inner{height:24px;display:flex;align-items:center;justify-content:space-between}
.plain-btn{border:0;background:none;color:#f7d8c6;cursor:pointer;padding:0 3px}

.site-header{position:fixed;z-index:69;top:24px;left:0;right:0;height:62px;background:rgba(255,253,249,.97);border-bottom:1px solid var(--line)}
.header-inner{height:62px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;min-height:44px}
.logo,.footer-logo,.panel-brand img{height:28px;max-width:180px;object-fit:contain;object-position:center}
.brand-text{font-size:17px;font-weight:700;color:var(--ink)}
.header-actions{display:flex;align-items:center;gap:8px}
.soft-link,.menu-btn,.close-btn{min-height:42px;border-radius:10px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;font-size:14px}
.soft-link{border:1px solid var(--line);background:#fff;color:var(--ink)}
.menu-btn,.close-btn{border:1px solid rgba(201,75,63,.35);background:var(--paper);color:var(--accent);cursor:pointer}

.quick-nav{position:fixed;z-index:68;top:86px;left:0;right:0;height:42px;background:#efe3da;border-bottom:1px solid var(--line)}
.quick-nav-inner{height:42px;display:flex;align-items:center;justify-content:center;gap:10px}
.quick-nav a{height:28px;min-width:94px;padding:0 14px;display:flex;align-items:center;justify-content:center;border-radius:8px;border:1px solid rgba(201,75,63,.2);background:rgba(255,255,255,.55);color:var(--ink);font-size:13px}
.quick-nav a.active{background:var(--accent);border-color:var(--accent);color:#fff}

.main{padding-top:152px;padding-bottom:46px;min-height:70vh}
h1,h2,h3{color:var(--ink);margin-top:0}
h1{font-size:26px;line-height:1.28;margin-bottom:14px}
h2{font-size:20px;line-height:1.4}
h3{font-size:16px;line-height:1.45}
p{margin:0 0 14px}
.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--accent);font-weight:700}
.lead{font-size:16px;color:#3b302b;max-width:820px}
.hero-copy{padding:22px 0 26px}
.hero-kicker{font-size:22px;line-height:1.45;color:var(--ink);font-weight:700;margin:6px 0 12px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.btn{min-height:42px;padding:0 17px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--accent2),var(--accent));color:#fff}
.btn-secondary{border:1px solid rgba(201,75,63,.32);background:#fff;color:var(--accent)}

.media{background:#eee6de;border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media img{width:100%;height:100%;object-fit:contain;object-position:center}
.hero-media{height:280px}
.media-190{height:190px}
.media-170{height:170px}
.media-app{height:340px;max-width:250px}

.block{margin:24px 0;padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.block.tint{background:var(--paper2)}
.block-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:15px}
.block-head p{margin:0;color:var(--muted);font-size:13px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{padding:15px;background:#fff;border:1px solid var(--line);border-radius:12px}
.card .media{margin-bottom:12px}
.tag{display:inline-flex;padding:2px 8px;border-radius:6px;background:#f2d7cf;color:#7c2c26;font-size:12px;margin-bottom:7px}
.link-arrow{color:var(--accent);font-weight:700}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stack{display:grid;gap:10px}
.stack article{padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:10px}
.stack strong{color:var(--ink)}
.topic-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.topic-item{padding:14px;background:#fff;border-top:3px solid var(--accent);border-radius:10px;border-left:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.topic-item strong{display:block;color:var(--ink);margin-bottom:4px}
.timeline{position:relative;margin-left:8px;padding-left:25px}
.timeline:before{content:"";position:absolute;left:7px;top:5px;bottom:5px;width:2px;background:#d8b9a7}
.timeline article{position:relative;padding:14px 16px;margin-bottom:12px;background:#fff;border:1px solid var(--line);border-radius:10px}
.timeline article:before{content:"";position:absolute;left:-23px;top:19px;width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--bg)}
.status{display:inline-flex;padding:2px 8px;border-radius:6px;background:#f3dfd5;color:#7b3029;font-size:12px;margin-bottom:6px}
.term-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.term-grid section{padding:16px;background:#fff;border:1px solid var(--line);border-radius:11px}
.app-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:24px;align-items:start}
.icon-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.app-icon{width:48px;height:48px;object-fit:contain}
.note{padding:14px 16px;border-left:4px solid var(--accent);background:#fff4ee;border-radius:9px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-bottom:10px}
.faq summary{cursor:pointer;color:var(--ink);font-weight:700}
.faq p{padding-top:9px}

.footer{background:var(--deep);color:#e6d8cf;padding:30px 0 78px;font-size:13px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{color:#fff}.footer-brand span{color:#bca89e}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.footer-links h3{font-size:14px;color:#f0c4b3;margin-bottom:8px}
.footer-links a{display:block;padding:3px 0;color:#ddd0c8}
.footer-note{margin-top:18px;color:#bdaba2}
.copyright{margin-bottom:0;color:#9c8880}

.overlay{position:fixed;z-index:90;inset:0;background:rgba(35,27,24,.52);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
.overlay.open{opacity:1;visibility:visible;pointer-events:auto}
.menu-panel{position:fixed;z-index:100;right:0;top:0;bottom:0;width:430px;max-width:88vw;background:#fffaf5;border-left:1px solid var(--line);transform:translateX(102%);visibility:hidden;pointer-events:none;transition:.24s ease;padding:18px;overflow:auto}
.menu-panel.open{transform:translateX(0);visibility:visible;pointer-events:auto}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:15px}
.panel-brand{display:flex;align-items:center;gap:10px}.panel-brand div{display:flex;flex-direction:column}.panel-brand strong{color:var(--ink)}.panel-brand small{color:var(--muted)}
.panel-groups{display:grid;gap:14px}.panel-groups section{border-top:1px solid var(--line);padding-top:10px}.panel-groups h2{font-size:14px;color:var(--accent);margin-bottom:8px}.panel-groups a{display:block;padding:9px 0;border-bottom:1px solid rgba(110,76,61,.09)}.panel-groups a strong{display:block;color:var(--ink)}.panel-groups a span{display:block;color:var(--muted);font-size:12px;line-height:1.45}

.search-layer{position:fixed;z-index:95;top:86px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:.2s}
.search-layer.open{visibility:visible;pointer-events:auto;opacity:1;transform:translateY(0)}
.search-box{max-width:820px;margin:10px auto 0;background:#fffaf5;border:1px solid rgba(201,75,63,.24);border-radius:14px;box-shadow:var(--shadow);padding:18px}
.search-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.search-top strong{color:var(--ink)}
.search-links{display:flex;gap:8px;flex-wrap:wrap}.search-links a{min-height:40px;padding:0 13px;border:1px solid var(--line);background:#fff;border-radius:8px;display:flex;align-items:center;color:var(--ink)}
.mobile-nav{display:none}

@media(max-width:780px){
  .wrap,.page-wrap{padding-left:16px;padding-right:16px}
  .quick-nav{display:none}
  .main{padding-top:106px;padding-bottom:66px}
  .header-actions{gap:6px}.soft-link,.menu-btn{padding:0 10px}
  .logo{max-width:140px;height:25px}
  .grid-3,.two-col,.topic-strip,.term-grid,.footer-links,.app-layout{grid-template-columns:1fr}
  .block{padding:17px;margin:18px 0}
  .hero-media{height:220px}
  .media-app{margin:auto;max-width:240px}
  .search-layer{top:0;bottom:0;background:#fff7f2}
  .search-box{margin:0;max-width:none;min-height:100vh;border:0;border-radius:0;padding:22px 16px}
  .mobile-nav{display:grid;position:fixed;z-index:65;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);grid-template-columns:repeat(5,1fr);background:#fffaf5;border-top:1px solid var(--line)}
  .mobile-nav a{display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--ink)}
  .mobile-nav a.active{background:var(--accent);color:#fff}
  .footer{padding-bottom:92px}
}