:root{
  --bg:#2B2C30;--deep:#1A1B1E;--surface:#34363C;--surface2:#3E4046;
  --title:#F2F2F4;--text:#D8D8DC;--muted:#A8A8B0;--subtle:#888890;
  --gold:#D4B06A;--blue:#7A92B0;--white:#F2F2F4;
  --border:rgba(242,242,244,.12);--focus:rgba(212,176,106,.48);
  --shadow:0 12px 28px rgba(0,0,0,.28);--max:960px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit}
img{max-width:100%;display:block}
.skip-link{position:fixed;left:12px;top:-80px;z-index:2000;background:var(--gold);color:var(--deep);padding:8px 12px;border-radius:6px}.skip-link:focus{top:8px}
.top-strip{position:fixed;z-index:1000;top:0;left:0;right:0;height:20px;background:var(--deep);color:var(--text);font-size:12px;border-bottom:1px solid var(--border)}
.top-strip-inner,.masthead,.quick-grid,.site-main,.footer-inner{max-width:var(--max);margin:0 auto}
.top-strip-inner{height:20px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.text-button,.menu-button,.close-button{border:0;background:none;color:inherit;cursor:pointer}
.text-button{min-height:20px;padding:0 2px;text-decoration:underline;text-underline-offset:3px}
.site-header{position:fixed;z-index:990;top:20px;left:0;right:0;background:var(--surface);box-shadow:0 6px 16px rgba(0,0,0,.16)}
.masthead{height:54px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(212,176,106,.35)}
.brand-link{display:flex;align-items:center;min-height:44px}.brand-logo{height:24px;width:auto;object-fit:contain;object-position:center}.brand-text{font-size:16px;font-weight:800;color:var(--title)}
.header-actions{display:flex;align-items:center;gap:6px}.header-app,.menu-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 13px;border-radius:7px}.header-app{color:var(--gold)}.menu-button{border:1px solid var(--border)}
.quick-grid{height:46px;background:var(--deep);display:flex;align-items:center;justify-content:center;gap:28px;padding:0 16px}
.quick-grid-item{height:46px;min-width:54px;display:flex;align-items:center;justify-content:center;gap:7px;color:var(--muted);font-size:13px}
.quick-square{width:36px;height:36px;border:1px solid var(--border);border-radius:6px;display:grid;place-items:center;color:var(--title);background:var(--surface)}
.quick-grid-item.is-current .quick-square{border:2px solid var(--gold);color:var(--gold)}
.site-main{padding:146px 16px 64px;min-height:70vh}
h1,h2,h3{color:var(--title);margin:0 0 12px;line-height:1.3}h1{font-size:24px}h2{font-size:20px}h3{font-size:16px}p{margin:0 0 14px}.lead{font-size:17px;color:var(--white);line-height:1.65}.muted{color:var(--muted)}
.eyebrow{color:var(--gold);font-size:12px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:7px}
.hero,.content-section,.terms-section,.method-section,.topic-list,.status-section,.center-cards,.faq-page,.contact-grid{margin-bottom:28px}
.hero{padding:28px;border:1px solid var(--border);background:linear-gradient(180deg,var(--surface),#303238);border-radius:10px;box-shadow:var(--shadow)}
.index-links{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:22px}.index-links a{border:1px solid var(--border);border-radius:6px;padding:10px 8px;text-align:center;color:var(--muted);background:var(--deep)}.index-links a:hover{border-color:var(--gold);color:var(--title)}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.button-primary,.button-secondary{height:42px;min-width:116px;padding:0 18px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.button-primary{background:linear-gradient(135deg,var(--blue),var(--gold));color:var(--deep)}.button-secondary{background:var(--deep);border:1px solid var(--gold);color:var(--title)}
a:hover,.text-button:hover,.menu-button:hover,.close-button:hover{opacity:.88}a:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.media-slot{background:var(--surface);border:1px solid var(--border);border-radius:8px;min-height:120px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.vertical-cut{display:grid;grid-template-columns:minmax(0,280px) 1fr;gap:22px;background:var(--surface);border:1px solid var(--border);border-radius:9px;padding:16px;margin-bottom:28px}.vertical-cut .media-slot{height:200px;min-height:200px}.vertical-cut-copy{padding:8px 8px 8px 0}
.list-rows{display:grid;gap:10px}.list-row{display:grid;grid-template-columns:52px 1fr;gap:14px;padding:14px 0;border-top:1px solid var(--border)}.list-row:first-child{border-top:0}.list-row .row-no{width:40px;height:40px;border:1px solid rgba(212,176,106,.35);border-radius:6px;display:grid;place-items:center;color:var(--gold);font-weight:800}.list-row.has-media{grid-template-columns:52px minmax(0,170px) 1fr}.list-row .media-slot{height:116px;min-height:116px}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:18px}.card .media-slot{height:170px;margin-bottom:14px}.card h3{margin-bottom:8px}
.archive-head{display:grid;grid-template-columns:1fr minmax(0,240px);gap:18px;align-items:center;background:var(--deep);border:1px solid var(--border);padding:18px;border-radius:8px;margin-bottom:12px}.archive-head .media-slot{height:160px}
.phase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.phase{background:var(--surface);border-top:3px solid var(--blue);padding:18px;border-radius:7px}.phase:nth-child(2){border-top-color:var(--gold)}.phase:nth-child(3){border-top-color:var(--muted)}
.status-list{display:grid;gap:10px}.status-item{display:grid;grid-template-columns:110px 1fr;align-items:center;gap:14px;padding:13px 14px;background:var(--surface);border:1px solid var(--border);border-radius:7px}.status-name{color:var(--gold);font-weight:800}.status-track{height:8px;border-radius:99px;background:var(--deep);overflow:hidden}.status-track span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--gold));width:var(--progress,60%)}
.app-split{display:grid;grid-template-columns:minmax(0,300px) 1fr;gap:24px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:9px;padding:18px}.app-visual{display:grid;gap:10px;justify-items:center}.app-visual .media-slot{height:300px;min-height:220px;width:100%}.app-icon-slot{width:58px;height:58px;min-height:58px;border-radius:12px}.app-icon-slot img{width:48px;height:48px;object-fit:contain}
.home-faq details,.faq-page details{background:var(--surface);border:1px solid var(--border);border-radius:7px;padding:13px 15px;margin-bottom:9px}.home-faq summary,.faq-page summary{cursor:pointer;color:var(--title);font-weight:700}.home-faq details p,.faq-page details p{margin-top:10px;color:var(--text)}
.brand-panel{background:var(--deep);border-left:4px solid var(--gold);padding:22px;border-radius:7px}.brand-panel .media-slot{height:190px;margin:14px 0}
.page-intro{padding:24px 0 18px;border-bottom:1px solid var(--border);margin-bottom:22px}.page-intro p{max-width:820px}.page-image{height:240px;margin:18px 0}
.single-flow{max-width:780px}.single-flow section{padding:18px 0;border-bottom:1px solid var(--border)}
.memo-list{display:grid;gap:12px}.memo-item{display:grid;grid-template-columns:32px 1fr;gap:12px;background:var(--surface);padding:16px;border:1px solid var(--border);border-radius:8px}.memo-mark{width:28px;height:28px;border:1px solid var(--gold);border-radius:6px;display:grid;place-items:center;color:var(--gold)}
.method-list{counter-reset:method;display:grid;gap:14px}.method-item{counter-increment:method;position:relative;padding:18px 18px 18px 64px;background:var(--surface);border:1px solid var(--border);border-radius:8px}.method-item:before{content:counter(method,decimal-leading-zero);position:absolute;left:16px;top:16px;color:var(--gold);font-weight:800}
.topic-item{padding:18px 0;border-bottom:1px solid var(--border);display:grid;grid-template-columns:170px 1fr;gap:18px}.topic-item strong{color:var(--gold)}
.center-cards{display:grid;gap:16px;justify-items:center}.center-card{width:min(720px,100%);text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:9px;padding:22px}.center-card .media-slot{height:210px;margin-bottom:14px}
.terms-section{display:grid;gap:14px}.term-block{background:var(--surface);border-left:3px solid var(--blue);padding:18px;border-radius:6px}.term-block:nth-child(even){border-left-color:var(--gold)}
.about-banner{height:200px;margin:0 0 20px}.about-statement{display:grid;gap:16px}.about-statement section{background:var(--surface);padding:18px;border:1px solid var(--border);border-radius:8px}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.contact-grid section{background:var(--surface);padding:18px;border:1px solid var(--border);border-radius:8px}
.site-footer{background:var(--deep);color:var(--text);border-top:1px solid rgba(212,176,106,.32)}.footer-inner{padding:30px 16px 78px}.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:22px}.footer-logo{height:24px;width:auto;object-fit:contain}.footer-brand strong{display:block;color:var(--title)}.footer-brand span{display:block;color:var(--muted);font-size:12px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links h2{font-size:13px;color:var(--gold);margin-bottom:8px}.footer-links a{display:block;font-size:13px;color:var(--muted);padding:3px 0}.footer-note,.copyright{font-size:13px;color:var(--muted)}.footer-note{margin-top:22px;border-top:1px solid var(--border);padding-top:16px}.copyright{margin-bottom:0}
.site-overlay{position:fixed;z-index:1200;inset:0;background:rgba(0,0,0,.52);opacity:0;pointer-events:none;transition:opacity .18s}.site-overlay.is-visible{opacity:1;pointer-events:auto}
.floating-menu{position:fixed;z-index:1300;left:18px;bottom:18px;width:280px;max-height:400px;overflow:auto;background:var(--surface);border:1px solid rgba(212,176,106,.4);border-radius:10px;box-shadow:var(--shadow);transform:translateY(calc(100% + 40px));visibility:hidden;pointer-events:none;transition:transform .2s,visibility .2s}.floating-menu.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.floating-menu-head{position:sticky;top:0;background:var(--surface);display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--border);z-index:2}.menu-brand{display:flex;align-items:center;gap:8px}.menu-brand img{height:24px;width:auto;object-fit:contain}.close-button{min-height:44px;padding:0 10px;color:var(--gold)}.menu-groups{padding:8px 12px 14px}.menu-groups section{padding:8px 0;border-bottom:1px solid var(--border)}.menu-groups section:last-child{border-bottom:0}.menu-groups h2{font-size:12px;color:var(--gold);margin-bottom:4px}.menu-groups a{display:block;padding:8px 0}.menu-groups b{display:block;color:var(--title);font-size:14px}.menu-groups span{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:2px}
.search-panel{position:fixed;z-index:1290;top:74px;left:50%;width:min(920px,calc(100% - 32px));transform:translate(-50%,-18px);background:var(--surface);border:1px solid rgba(212,176,106,.38);box-shadow:var(--shadow);border-radius:0 0 10px 10px;visibility:hidden;opacity:0;pointer-events:none;transition:.18s}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,0)}.search-panel-inner{padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between}.search-presets{display:flex;gap:8px;flex-wrap:wrap}.search-presets a{min-height:44px;padding:9px 13px;border:1px solid var(--border);border-radius:6px;display:inline-flex;align-items:center;color:var(--title)}
.mobile-bottom{display:none}.no-scroll{overflow:hidden}
@media (max-width:720px){
  .quick-grid{display:none}.site-main{padding-top:96px;padding-bottom:82px}.masthead{padding:0 12px}.header-actions{gap:2px}.header-app,.menu-button{padding:0 9px}.top-strip-inner{padding:0 12px}
  .hero{padding:20px}.index-links{grid-template-columns:repeat(2,1fr)}
  .vertical-cut,.app-split,.archive-head{grid-template-columns:1fr}.vertical-cut .media-slot{width:100%;height:200px}.vertical-cut-copy{padding:0}
  .list-row.has-media{grid-template-columns:44px 1fr}.list-row.has-media .media-slot{grid-column:2;height:150px}.card-grid,.phase-grid,.contact-grid,.footer-links{grid-template-columns:1fr}.topic-item{grid-template-columns:1fr;gap:7px}
  .status-item{grid-template-columns:92px 1fr}.footer-inner{padding-bottom:82px}
  .floating-menu{left:6%;bottom:64px;width:88%;max-height:400px}
  .search-panel{top:0;left:0;right:0;bottom:0;width:100%;transform:none;border-radius:0;background:var(--deep);visibility:hidden;opacity:0}.search-panel.is-open{transform:none;visibility:visible;opacity:1}.search-panel-inner{padding:26px 16px}.search-presets{display:grid;grid-template-columns:repeat(2,1fr)}
  .mobile-bottom{position:fixed;display:grid;z-index:1100;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(4,1fr);background:var(--deep);border-top:1px solid var(--border)}.mobile-bottom a{display:grid;place-items:center;font-size:13px;color:var(--muted)}.mobile-bottom a.is-current{background:var(--gold);color:var(--deep);font-weight:800}
  .page-image{height:210px}.about-banner{height:200px}
}