:root{--bg:#F4F3F1;--deep:#E6E4E0;--card:#FFFFFF;--soft:#EDECEA;--title:#161616;--text:#2A2A2A;--muted:#5C5C5C;--softtext:#8A8A8A;--brand:#161616;--graphite:#2E2E2E;--silver:#C8C4BC;--ember:#B43A32;--frost:#FAF9F7;--border:rgba(22,22,22,.14);--shadow:0 12px 28px rgba(16,16,16,.08);--radius:10px;--top:116px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.locked{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit}
.shell{width:min(960px,calc(100% - 32px));margin:0 auto}
.skip-link{position:fixed;left:10px;top:-60px;z-index:1000;background:var(--frost);color:var(--brand);padding:8px 12px;border-radius:8px}
.skip-link:focus{top:8px}
.top-rail{position:fixed;z-index:100;top:0;left:0;right:0;height:18px;background:var(--brand);color:var(--frost);font-size:12px}
.rail-inner{height:18px;display:flex;align-items:center;justify-content:space-between}
.text-button{border:0;background:transparent;color:var(--frost);padding:0 8px;min-height:18px;cursor:pointer}
.brand-bar{position:fixed;z-index:99;top:18px;left:0;right:0;height:54px;background:rgba(250,249,247,.98);border-bottom:1px solid var(--border);backdrop-filter:blur(8px)}
.brand-inner{height:54px;display:flex;align-items:center;justify-content:space-between}
.brand-home{display:flex;align-items:center;min-height:44px}
.brand-logo,.footer-logo{height:24px;max-width:160px;object-fit:contain}
.brand-word{font-size:16px;font-weight:800;color:var(--brand)}
.brand-actions{display:flex;align-items:center;gap:8px}
.mini-link,.menu-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 14px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--brand);font-size:14px}
.menu-button{cursor:pointer}
.pin-nav{position:fixed;z-index:98;top:72px;left:0;right:0;height:44px;background:var(--soft);border-bottom:1px solid var(--border)}
.pin-nav-inner{display:flex;align-items:center;height:44px;gap:10px}
.nav-pin{width:12px;height:16px;border:2px solid var(--brand);border-radius:3px;background:var(--frost);box-shadow:inset 0 0 0 2px #fff}
.pin-link{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:8px;font-size:13px;color:var(--graphite);transition:180ms}
.pin-link.is-current{background:var(--brand);color:var(--frost);box-shadow:0 6px 16px rgba(16,16,16,.18)}
.site-main{padding-top:calc(var(--top) + 28px);padding-bottom:40px;min-height:70vh}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:16px}
.crumbs a{color:var(--graphite);text-decoration:underline;text-underline-offset:2px}
h1,h2,h3{color:var(--title);margin-top:0}
h1{font-size:24px;line-height:1.3;margin-bottom:12px}
h2{font-size:20px;line-height:1.4;margin-bottom:12px}
h3{font-size:16px;line-height:1.45;margin-bottom:8px}
p{margin:0 0 14px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--graphite);font-weight:700;margin-bottom:8px}
.lead{font-size:16px;color:var(--title);font-weight:700}
.muted{color:var(--muted)}
.section{margin:0 0 32px}
.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.soft-panel{background:var(--soft);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.main-button,.secondary-button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-size:14px;font-weight:800;transition:180ms;white-space:nowrap}
.main-button{background:linear-gradient(135deg,#3A3A3A 0%,#161616 55%,#0C0C0C 100%);color:var(--frost);box-shadow:0 6px 16px rgba(16,16,16,.18)}
.secondary-button{background:#fff;color:var(--brand);border:1px solid var(--border)}
.main-button:hover,.pin-link.is-current:hover,.mobile-bottom a.is-current:hover{filter:brightness(1.06);box-shadow:0 0 0 3px rgba(200,196,188,.28),0 10px 24px rgba(16,16,16,.28)}
.main-button:active,.pin-link.is-current:active,.mobile-bottom a.is-current:active{filter:brightness(1.12);box-shadow:0 0 0 4px rgba(180,58,50,.35),0 0 22px rgba(200,196,188,.45)}
a:focus-visible,button:focus-visible{outline:2px solid #C8C4BC;outline-offset:2px}
.media-slot{background:linear-gradient(145deg,var(--frost),var(--soft));border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.slot-wide{width:100%;height:168px}
.slot-160{width:100%;height:160px}
.slot-point{width:240px;height:176px}
.slot-app{width:240px;height:320px}
.slot-banner{width:100%;height:200px}
.slot-icon{width:64px;height:64px;padding:8px}
.slot-brand{width:100%;height:180px}
.tag{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:var(--deep);color:var(--brand);font-size:12px;font-weight:800}
.tag-gold{background:#F1ECE1;color:#65562B}
.intro-index{position:relative;padding:22px 0 8px}
.index-pin{display:flex;gap:10px;margin-bottom:12px}
.index-pin span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--graphite)}
.index-pin i{width:12px;height:16px;border-radius:3px;border:2px solid var(--brand);display:inline-block;background:#fff}
.point-cut{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:center}
.point-copy{padding:8px 0}
.double-cyan{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
.cyan-story{background:var(--deep);border:1px solid var(--border);border-radius:10px;padding:18px}
.cyan-story.alt{background:#fff}
.page-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.page-sheet{background:#fff;border-left:4px solid var(--brand);border-top:1px solid var(--border);border-right:1px solid var(--border);border-bottom:1px solid var(--border);border-radius:0 10px 10px 0;padding:18px}
.single-note{display:grid;grid-template-columns:1fr 260px;gap:20px;align-items:center}
.topic-lines{display:grid;gap:10px}
.topic-line{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--border)}
.topic-line:last-child{border-bottom:0}
.wrap-app{display:grid;grid-template-columns:1fr 260px;gap:22px;align-items:start}
.app-visual{position:relative;grid-column:2}
.wrap-app>div:not(.app-visual){grid-column:1;grid-row:1}
.app-visual .slot-icon{position:absolute;left:-18px;bottom:-14px;background:#fff;box-shadow:var(--shadow)}
.faq-mini{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-mini article{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px}
.brand-story{background:var(--deep);border-radius:10px;padding:22px;border:1px solid var(--border)}
.page-hero{margin-bottom:24px}
.page-hero .lead{max-width:760px}
.xun-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.xun-grid article{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px}
.xun-grid article:nth-child(3n){grid-column:1/-1;background:var(--soft)}
.clue-cut{display:grid;grid-template-columns:250px 1fr;gap:22px}
.clue-notes{display:grid;gap:14px}
.clue-notes article{padding:16px 0;border-bottom:1px solid var(--border)}
.clue-notes article:last-child{border-bottom:0}
.timeline-pages{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.timeline-pages article{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px;position:relative}
.timeline-pages article:before{content:"";position:absolute;left:18px;top:0;width:58px;height:4px;background:var(--brand);border-radius:0 0 4px 4px}
.status-stack{display:grid;gap:12px}
.status-row{display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.status-label{display:inline-flex;justify-content:center;align-items:center;min-height:34px;border-radius:999px;background:var(--brand);color:var(--frost);font-weight:800}
.status-label.wait{background:#6F6250}
.status-label.work{background:var(--graphite)}
.longread{max-width:760px;margin:0 auto}
.longread section{margin-bottom:28px}
.longread blockquote{margin:18px 0;padding:14px 18px;border-left:4px solid var(--ember);background:var(--soft);color:var(--title)}
.topic-directory{display:grid;gap:14px}
.topic-directory article{display:grid;grid-template-columns:160px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px}
.topic-directory .marker{font-size:13px;font-weight:800;color:var(--graphite)}
.mirror-layout{display:grid;grid-template-columns:1fr 280px;gap:20px}
.mirror-copy article{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.mirror-copy article:last-child{border-bottom:0}
.inquiry-band{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:center}
.inquiry-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.inquiry-steps article{background:var(--soft);border-radius:10px;padding:16px;border:1px solid var(--border)}
.app-wrap-inner{display:grid;grid-template-columns:1fr 250px;gap:24px;align-items:start}
.app-wrap-inner .app-visual{grid-column:2}
.policy-sections{display:grid;gap:14px}
.policy-sections section{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px}
.help-index{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.help-index article{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px}
.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px}
.contact-routes{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.contact-routes article{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px}
.about-banner{margin:14px 0 22px}
.site-footer{background:#101010;color:#E6E4E0;border-top:1px solid rgba(200,196,188,.28);padding:34px 0 calc(20px + env(safe-area-inset-bottom))}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}
.footer-brand p{font-size:13px;color:#C8C4BC;max-width:330px}
.footer-logo-link{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-logo-link span{display:flex;flex-direction:column}
.footer-logo-link strong{font-size:15px;color:#FAF9F7}
.footer-logo-link small{font-size:11px;color:#C8C4BC}
.site-footer h2{font-size:14px;color:#FAF9F7;margin-bottom:8px}
.site-footer a{display:block;font-size:13px;color:#E6E4E0;padding:4px 0}
.footer-bottom{font-size:13px;color:#A9A59D;border-top:1px solid rgba(230,228,224,.12);padding-top:16px;margin-top:22px}
.site-drawer{position:fixed;z-index:130;left:0;right:0;bottom:0;width:100%;max-height:200px;overflow:auto;background:#fff;border-top:1px solid var(--border);box-shadow:0 -24px 60px rgba(16,16,16,.20);padding:12px 0 14px;transform:translateY(105%);visibility:hidden;pointer-events:none;transition:180ms}
.site-drawer.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}
.drawer-shell{min-height:0}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--brand)}
.drawer-brand img{height:24px;max-width:140px;object-fit:contain}
.icon-close{width:44px;height:44px;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--brand);font-size:24px;cursor:pointer}
.drawer-columns{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:16px}
.drawer-group{padding:6px 0;border-top:1px solid var(--border)}
.drawer-group h2{font-size:14px;margin-bottom:4px}
.drawer-group a{display:grid;grid-template-columns:120px 1fr;gap:8px;padding:4px;border-radius:8px}
.drawer-group a:hover{background:var(--soft)}
.drawer-group small{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.search-panel{position:fixed;z-index:135;top:72px;left:50%;width:min(720px,calc(100% - 32px));transform:translate(-50%,-20px);visibility:hidden;pointer-events:none;opacity:0;transition:180ms}
.search-panel.is-open{transform:translate(-50%,0);visibility:visible;pointer-events:auto;opacity:1}
.search-card{background:var(--frost);border:1px solid var(--border);border-radius:10px;box-shadow:0 20px 60px rgba(16,16,16,.18);padding:18px}
.search-head{display:flex;align-items:center;justify-content:space-between}
.search-links{display:flex;flex-wrap:wrap;gap:10px}
.search-links a{min-height:40px;display:inline-flex;align-items:center;padding:0 14px;border-radius:10px;background:var(--soft);color:var(--brand);font-weight:700}
.page-overlay{position:fixed;inset:0;z-index:120;background:rgba(16,16,16,.48);opacity:0;visibility:hidden;pointer-events:none;transition:180ms}
.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.mobile-bottom{display:none}
.note-list{margin:0;padding-left:20px}
.note-list li{margin:7px 0}
.two-col-copy{columns:2;column-gap:28px}
.two-col-copy p{break-inside:avoid}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
@media(max-width:760px){
  :root{--top:72px}
  .shell{width:calc(100% - 32px)}
  .pin-nav{display:none}
  .site-main{padding-top:calc(var(--top) + 22px);padding-bottom:86px}
  .brand-actions{gap:4px}
  .mini-link,.menu-button{padding:0 10px}
  .point-cut,.double-cyan,.page-cards,.single-note,.wrap-app,.xun-grid,.clue-cut,.timeline-pages,.mirror-layout,.inquiry-band,.app-wrap-inner{grid-template-columns:1fr}
  .slot-point{width:240px;max-width:100%;height:176px}
  .slot-app{width:240px;max-width:100%;height:320px}
  .app-visual{max-width:280px;grid-column:1}
  .wrap-app>div:not(.app-visual){grid-column:1;grid-row:auto}
  .single-note .media-slot{order:-1}
  .faq-mini,.inquiry-steps,.help-index,.contact-routes{grid-template-columns:1fr}
  .topic-directory article{grid-template-columns:1fr;gap:8px}
  .topic-directory article .secondary-button{justify-self:start}
  .status-row{grid-template-columns:1fr;gap:8px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .site-drawer{max-height:66vh;padding-bottom:calc(12px + env(safe-area-inset-bottom))}
  .drawer-columns{grid-template-columns:1fr}
  .drawer-group a{grid-template-columns:120px 1fr;padding:7px 4px}
  .drawer-group small{white-space:normal}
  .search-panel{top:0;left:0;width:100%;height:100vh;transform:none;background:var(--brand);padding:18px;visibility:hidden;opacity:0}
  .search-panel.is-open{transform:none;visibility:visible;opacity:1}
  .search-card{margin-top:24px;background:var(--brand);border-color:rgba(255,255,255,.18);box-shadow:none;color:var(--frost)}
  .search-card strong,.search-card p{color:var(--frost)}
  .search-card .icon-close{background:transparent;color:var(--frost);border-color:rgba(255,255,255,.3)}
  .search-links a{background:var(--frost);color:var(--brand)}
  .mobile-bottom{position:fixed;z-index:110;bottom:0;left:0;right:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--border)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--graphite)}
  .mobile-bottom a.is-current{background:var(--brand);color:var(--frost);box-shadow:0 6px 16px rgba(16,16,16,.18)}
  .two-col-copy{columns:1}
  .slot-banner{height:200px}
}
@media(max-width:430px){
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .rail-inner{width:calc(100% - 20px)}
  .brand-inner{width:calc(100% - 20px)}
  .brand-logo{max-width:120px}
  .mini-link,.menu-button{font-size:13px;padding:0 8px}
  .topic-line{flex-direction:column;gap:4px}
  .drawer-group a{grid-template-columns:1fr}
  .drawer-group small{display:block}
}