:root{
  --paper:#F4EDE0;
  --paper2:#FBF6EC;
  --deep:#E5D8C1;
  --ink:#1C160C;
  --text:#2A2214;
  --muted:#66563A;
  --gold:#8A6A28;
  --copper:#C49A3C;
  --line:rgba(28,22,12,.14);
  --shadow:0 12px 30px rgba(28,22,12,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font:15px/1.72 "Microsoft YaHei","PingFang SC",Arial,sans-serif;overflow-x:hidden}
body.lock{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
img{max-width:100%}
.wrap{width:min(980px,calc(100% - 32px));margin:0 auto}
.site-header{position:fixed;inset:0 0 auto;z-index:50}
.top-strip{height:22px;background:var(--ink);color:var(--copper);font-size:12px}
.top-strip-inner{height:22px;display:flex;align-items:center;justify-content:space-between}
.top-search{border:0;background:transparent;color:var(--copper);min-height:22px;padding:0}
.brand-row{height:58px;background:var(--paper2);border-bottom:1px solid rgba(138,106,40,.38)}
.brand-row-inner{height:58px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;min-height:44px}
.brand-logo{height:24px;width:auto;object-fit:contain;object-position:left center}
.brand-text{font-size:17px;font-weight:800;color:var(--ink)}
.brand-actions{display:flex;align-items:center;gap:8px}
.quick-link,.menu-button{min-height:42px;padding:0 13px;display:inline-flex;align-items:center;border:1px solid var(--gold);background:var(--paper2);color:var(--ink)}
.menu-button{border-radius:2px}
.quick-nav{height:44px;background:var(--paper2);border-bottom:1px solid var(--line)}
.quick-nav-inner{height:44px;display:flex;align-items:center;justify-content:center;gap:12px}
.quick-nav a{min-height:30px;padding:5px 14px;border-bottom:2px solid transparent;font-size:13px}
.quick-nav a.active{border-bottom-color:var(--copper);font-weight:700}
.page-main{padding-top:124px;min-height:70vh}
.hero{padding:42px 0 30px}
.eyebrow{margin:0 0 7px;color:var(--gold);font-size:12px;letter-spacing:.16em}
h1,h2,h3,p{margin-top:0}
h1{font-size:28px;line-height:1.28;color:var(--ink);margin-bottom:14px}
h2{font-size:20px;line-height:1.4;color:var(--ink)}
h3{font-size:16px;color:var(--ink)}
.lead{font-size:16px;max-width:760px}
.section{padding:34px 0;border-top:1px solid var(--line)}
.btn-main,.btn-alt{min-height:42px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border-radius:2px}
.btn-main{background:linear-gradient(135deg,var(--ink),var(--copper));color:var(--paper2);border:1px solid var(--gold)}
.btn-alt{background:var(--paper2);color:var(--ink);border:1px solid var(--gold)}
a:hover,button:hover{opacity:.86}
a:focus-visible,button:focus-visible{outline:3px solid var(--copper);outline-offset:3px}
.hero-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.image-slot{background:var(--paper2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.h160{height:160px}.h190{height:190px}.h220{height:220px}.h300{height:300px}
.feature-strip{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.feature-main{background:var(--paper2);padding:22px;border-top:4px solid var(--gold);box-shadow:var(--shadow)}
.feature-main .image-slot{margin-bottom:18px}
.feature-side{display:grid;gap:12px}
.feature-side article{background:var(--deep);padding:18px}
.timeline{display:grid;gap:12px}
.timeline article{display:grid;grid-template-columns:90px 1fr;gap:18px;background:var(--paper2);padding:18px;border-left:3px solid var(--gold)}
.timeline b{color:var(--gold);font-size:22px}
.media-row{display:grid;grid-template-columns:280px 1fr;gap:22px;align-items:center}
.media-row.reverse{grid-template-columns:1fr 280px}
.media-row.reverse .image-slot{order:2}
.note-list{display:grid;gap:12px}
.note-list article{background:var(--paper2);padding:18px;border-bottom:2px solid var(--gold)}
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.topic-grid article{background:var(--paper2);padding:20px;border:1px solid var(--line)}
.status-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.status-grid article{background:var(--paper2);padding:20px;border-top:3px solid var(--gold)}
.app-row{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:center}
.app-visual{display:grid;gap:12px;justify-items:center}
.app-icon{width:48px;height:48px;object-fit:contain}
.short-faq{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.short-faq article{background:var(--paper2);padding:18px;border:1px solid var(--line)}
.page-head{padding:38px 0 18px}
.stack{display:grid;gap:14px}
.card{background:var(--paper2);padding:20px;border:1px solid var(--line)}
.double{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.double article{background:var(--paper2);padding:20px;border-top:3px solid var(--gold)}
.step-list{counter-reset:steps;display:grid;gap:12px}
.step-list article{counter-increment:steps;background:var(--paper2);padding:20px;border-left:4px solid var(--gold)}
.step-list article h2:before{content:counter(steps,decimal-leading-zero) " ";color:var(--gold)}
.center-list{max-width:760px;margin:0 auto;display:grid;gap:14px}
.center-list article{background:var(--paper2);padding:24px;text-align:center;border:1px solid var(--line)}
.policy article{padding:20px 0;border-top:1px solid var(--line)}
.policy article:first-child{border-top:0}
.qa-list{display:grid;gap:12px}
.qa-list details{background:var(--paper2);padding:16px 18px;border:1px solid var(--line)}
.qa-list summary{font-weight:800;color:var(--ink);cursor:pointer}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-grid article{background:var(--paper2);padding:20px;border:1px solid var(--line)}
.brand-banner{height:200px;margin-bottom:24px}
.site-footer{background:var(--ink);color:var(--paper);padding:34px 0 78px;border-top:1px solid var(--copper);font-size:13px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}
.footer-logo{height:24px;width:auto;object-fit:contain}
.footer-brand div{display:flex;gap:8px;align-items:baseline}.footer-brand span{color:var(--copper)}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.footer-grid h2{font-size:13px;color:var(--copper);margin-bottom:8px}
.footer-grid a{display:block;padding:3px 0}
.footer-note{margin-top:24px;color:#d8ccb8}.copyright{color:var(--copper);margin-bottom:0}
.mask{position:fixed;inset:0;background:rgba(28,22,12,.54);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
.mask.show{opacity:1;visibility:visible;pointer-events:auto}
.site-menu{position:fixed;left:50%;bottom:18px;z-index:90;width:min(680px,calc(100% - 32px));max-height:72vh;transform:translate(-50%,110%);background:var(--paper2);border:1px solid var(--gold);box-shadow:var(--shadow);visibility:hidden;pointer-events:none;transition:.25s}
.site-menu.show{transform:translate(-50%,0);visibility:visible;pointer-events:auto}
.menu-head{height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--line)}
.menu-head button,.search-head button{min-height:40px;padding:0 12px;border:1px solid var(--gold);background:var(--paper2);color:var(--ink)}
.menu-groups{padding:14px 16px 20px;overflow:auto;max-height:calc(72vh - 54px);display:grid;grid-template-columns:1fr 1fr;gap:18px}
.menu-groups h2{font-size:14px;color:var(--gold);margin-bottom:8px}
.menu-groups a{display:block;padding:7px 0;border-bottom:1px dotted var(--line)}
.menu-groups a b,.menu-groups a span{display:block}
.menu-groups a span{font-size:12px;color:var(--muted)}
.search-layer{position:fixed;left:0;right:0;top:80px;z-index:95;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-12px);transition:.2s}
.search-layer.show{visibility:visible;pointer-events:auto;opacity:1;transform:none}
.search-card{width:min(720px,calc(100% - 32px));margin:0 auto;background:var(--paper2);border:1px solid var(--gold);box-shadow:var(--shadow);padding:20px}
.search-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}
.search-head p{margin:2px 0 0;color:var(--muted)}
.search-fake{margin:16px 0;padding:12px 14px;border:1px solid var(--line);color:var(--muted)}
.search-links{display:flex;flex-wrap:wrap;gap:8px}
.search-links a{min-height:40px;padding:8px 14px;border:1px solid var(--gold)}
.mobile-nav{display:none}

@media(max-width:720px){
  .wrap{width:calc(100% - 32px)}
  .quick-nav{display:none}
  .page-main{padding-top:80px;padding-bottom:64px}
  .feature-strip,.media-row,.media-row.reverse,.app-row,.double,.topic-grid,.short-faq,.contact-grid{grid-template-columns:1fr}
  .media-row.reverse .image-slot{order:0}
  .status-grid{grid-template-columns:1fr}
  .timeline article{grid-template-columns:1fr;gap:5px}
  .brand{max-width:42%}.brand-actions{gap:4px}.quick-link,.menu-button{padding:0 9px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mobile-nav{display:grid;position:fixed;left:0;right:0;bottom:0;z-index:70;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);grid-template-columns:repeat(4,1fr);background:var(--paper2);border-top:1px solid var(--gold)}
  .mobile-nav a{display:flex;align-items:center;justify-content:center;font-size:13px}
  .mobile-nav a.active{background:var(--gold);color:var(--paper2)}
  .site-menu{width:88%;bottom:62px}
  .menu-groups{grid-template-columns:1fr}
  .search-layer{top:0;bottom:0;background:var(--ink);padding:24px 0;overflow:auto}
  .search-card{min-height:calc(100vh - 48px);background:var(--ink);color:var(--copper);border-color:var(--copper)}
  .search-head p,.search-fake{color:var(--paper)}
  .search-head button,.search-links a{background:var(--ink);color:var(--copper);border-color:var(--copper)}
  .search-fake{border-color:rgba(196,154,60,.45)}
}