:root{
  --bg:#E8F4F0;--deep:#C8E4DC;--surface:#F4FAF8;--sub:#DCEEE8;
  --title:#16382E;--text:#245044;--muted:#4A7468;--soft:#6A9488;
  --green:#2A8A72;--green2:#3AA88A;--gold:#C4A050;
  --border:rgba(22,56,46,.12);--focus:rgba(42,138,114,.48);
  --shadow:0 12px 28px rgba(22,56,46,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:122px}
a{color:inherit;text-decoration:none}
a,button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%;height:auto}
.shell{width:min(960px,calc(100% - 32px));margin:0 auto}
.site-top{position:fixed;z-index:70;inset:0 0 auto 0;box-shadow:0 3px 12px rgba(22,56,46,.04)}
.top-strip{height:20px;background:var(--green);color:var(--surface);font-size:12px}
.top-strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.text-action{border:0;background:transparent;color:var(--surface);padding:0 4px;min-height:20px}
.brand-row{height:54px;background:var(--surface);border-bottom:1px solid rgba(42,138,114,.28)}
.brand-row-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand-link{display:inline-flex;align-items:center;min-height:44px}
.brand-logo{height:24px;width:auto;object-fit:contain}
.brand-text{font-size:16px;font-weight:800;color:var(--title)}
.brand-actions{display:flex;align-items:center;gap:8px}
.app-link,.menu-toggle{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 14px;border-radius:10px;font-size:14px}
.app-link{background:linear-gradient(135deg,var(--green) 0%,var(--green2) 100%);color:var(--surface)}
.menu-toggle{border:1px solid var(--green);background:var(--surface);color:var(--title)}
.dot-nav{height:48px;background:var(--surface)}
.dot-nav-inner{height:48px;display:flex;align-items:center;justify-content:center;gap:42px}
.dot-link{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;height:48px;font-size:13px;color:var(--muted);min-width:48px}
.dot-link span{width:10px;height:10px;border-radius:50%;background:var(--deep);border:2px solid var(--green);margin-bottom:2px}
.dot-link.dot-high{transform:translateY(-4px)}
.dot-link.is-active{font-weight:800;color:var(--title)}
.dot-link.is-active span{width:14px;height:14px;background:var(--green)}
.dot-link:focus-visible,.app-link:focus-visible,.menu-toggle:focus-visible,.btn:focus-visible,.footer-col a:focus-visible,.mobile-bottom a:focus-visible,.search-presets a:focus-visible,.side-drawer a:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.site-main{min-height:60vh}
.page-section{padding:48px 0}
.page-section.tight{padding:30px 0}
.surface{background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}
.soft-surface{background:var(--sub);border:1px solid var(--border);border-radius:14px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--green);font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.eyebrow:before{content:"";width:26px;height:2px;background:var(--gold)}
h1{font-size:24px;line-height:1.3;color:var(--title);margin:10px 0 14px}
h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 14px}
h3{font-size:16px;line-height:1.5;color:var(--title);margin:0 0 8px}
p{margin:0 0 14px}
.lead{font-size:16px;color:var(--muted);max-width:760px}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.btn{height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px;border-radius:10px;font-size:14px;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--green) 0%,var(--green2) 100%);color:var(--surface)}
.btn-secondary{background:var(--surface);border-color:var(--green);color:var(--title)}
.btn:hover{transform:translateY(-1px)}
.media-slot{background:var(--surface);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;min-height:120px}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.media-164{height:164px}
.media-200{height:200px}
.media-app{height:320px;max-width:320px;margin-inline:auto}
.media-small{height:150px}
.media-icon{width:64px;height:64px;min-height:64px;border-radius:14px}
.quick-index{display:flex;gap:18px;align-items:flex-end;flex-wrap:wrap;margin-bottom:26px}
.quick-index a{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--muted)}
.quick-index i{width:10px;height:10px;border-radius:50%;background:var(--deep);border:2px solid var(--green)}
.quick-index a:nth-child(3){transform:translateY(-4px);font-weight:800}
.home-intro{padding:42px 0 34px}
.home-intro .intro-box{padding:28px 30px;background:linear-gradient(145deg,var(--surface),var(--sub));border:1px solid var(--border);border-radius:14px}
.split-strip{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}
.split-pane{padding:24px;min-height:164px;background:var(--surface);border:1px solid var(--border);border-radius:12px}
.vertical-records{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.record-stack{display:grid;gap:12px}
.record-item{padding:20px;border-left:4px solid var(--green);background:var(--surface);border-radius:0 12px 12px 0}
.clip-pages{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.clip-card{padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:14px;position:relative}
.clip-card:before{content:"";position:absolute;top:-1px;right:28px;width:34px;height:7px;border-radius:0 0 6px 6px;background:var(--gold)}
.two-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.note-card{padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.period-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.period-item{padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.status-list{display:grid;gap:10px}
.status-row{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;padding:15px 18px;background:var(--surface);border:1px solid var(--border);border-radius:12px}
.status-pill{font-size:12px;color:var(--surface);background:var(--green);border-radius:999px;padding:4px 9px;white-space:nowrap}
.app-feature{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.app-badge{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.faq-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.faq-mini article{padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:12px}
.page-hero{padding:38px 0 24px}
.page-hero .hero-inner{padding:28px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.page-hero.compact .hero-inner{padding:22px 26px}
.link-trail{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.link-trail a{font-size:13px;color:var(--green);border-bottom:1px solid rgba(42,138,114,.3)}
.prose{max-width:760px}
.prose p{margin-bottom:16px}
.prose-wide{max-width:none}
.record-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px;align-items:start}
.record-index{position:sticky;top:142px;padding:20px;background:var(--sub);border-radius:14px}
.record-index a{display:block;padding:8px 0;color:var(--muted)}
.record-list{display:grid;gap:14px}
.record-list article{padding:22px;background:var(--surface);border-left:4px solid var(--green);border-radius:0 12px 12px 0}
.open-layout{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.open-layout article{padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.open-layout .wide{grid-column:1/-1}
.clip-layout{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.clip-layout article{padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.single-flow{display:grid;gap:16px}
.single-flow article{padding:22px 24px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.tri-period{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tri-period article{padding:22px;background:var(--surface);border-top:4px solid var(--green);border-radius:0 0 14px 14px}
.timeline-list{display:grid;gap:12px}
.timeline-row{display:grid;grid-template-columns:140px 1fr;gap:18px;padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:12px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check-list article{padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.method-list{counter-reset:method;display:grid;gap:12px}
.method-list article{counter-increment:method;display:grid;grid-template-columns:48px 1fr;gap:14px;padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.method-list article:before{content:counter(method);width:40px;height:40px;border-radius:50%;background:var(--green);color:var(--surface);display:grid;place-items:center;font-weight:800}
.topic-list{display:grid;gap:14px}
.topic-list article{padding:22px;background:linear-gradient(90deg,var(--surface),var(--sub));border:1px solid var(--border);border-radius:14px}
.center-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:780px;margin:0 auto}
.center-cards article{text-align:center;padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.terms{display:grid;gap:16px}
.terms section{padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.help-grid article{padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.faq-list{display:grid;gap:12px}
.faq-list article{padding:20px 22px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.contact-paths{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.contact-paths article{padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.about-hero-media{margin-top:18px}
.brand-values{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.brand-values article{padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:14px}
.site-footer{background:var(--title);color:var(--bg);border-top:1px solid rgba(244,250,248,.4);padding:34px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.35fr repeat(4,1fr);gap:22px}
.footer-brand{display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.footer-brand img{height:24px;width:auto;object-fit:contain}
.footer-brand strong{font-size:16px}.footer-brand span{font-size:12px;color:#C8E4DC}
.footer-col h2{font-size:13px;color:var(--surface);margin:0 0 8px}
.footer-col a{display:block;font-size:13px;color:var(--bg);padding:3px 0}
.footer-note{border-top:1px solid rgba(244,250,248,.18);margin-top:24px;padding-top:18px;font-size:13px;color:#DCEEE8}
.overlay{position:fixed;z-index:80;inset:0;background:rgba(22,56,46,.34);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}
.side-drawer{position:fixed;z-index:90;top:20px;left:0;width:min(36vw,430px);max-height:calc(100vh - 40px);overflow:auto;background:var(--surface);border-radius:0 14px 14px 0;box-shadow:var(--shadow);padding:18px;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:.24s}
.side-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-brand img{height:24px;width:auto;object-fit:contain}.drawer-brand div{display:flex;flex-direction:column}.drawer-brand small{color:var(--soft)}
.drawer-close,.search-close{min-height:44px;border:1px solid var(--green);background:var(--surface);color:var(--title);border-radius:10px;padding:0 12px}
.drawer-group{padding:12px 0 4px}.drawer-group h2{font-size:13px;color:var(--green);margin-bottom:6px}.drawer-group a{display:grid;grid-template-columns:88px 1fr;gap:10px;padding:8px 0;border-bottom:1px dashed var(--border)}.drawer-group a span{font-size:13px;color:var(--muted)}
.search-panel{position:fixed;z-index:88;top:74px;left:0;right:0;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
.search-panel.is-open{opacity:1;visibility:visible;pointer-events:auto}
.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:20px}
.search-topline{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.search-topline p{font-size:13px;color:var(--muted);margin:4px 0 0}
.search-card label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}.search-card input{width:100%;height:44px;border:1px solid var(--focus);background:white;border-radius:10px;padding:0 12px;color:var(--text)}
.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{padding:9px 13px;background:var(--sub);border-radius:999px;color:var(--title)}
.ui-locked{overflow:hidden}
.mobile-bottom{display:none}
@media (max-width:760px){
  body{padding-top:74px;padding-bottom:calc(48px + env(safe-area-inset-bottom))}
  .dot-nav{display:none}.shell{width:min(100% - 32px,960px)}
  .brand-actions{gap:6px}.app-link,.menu-toggle{padding:0 10px}
  .page-section{padding:34px 0}.home-intro{padding:28px 0}
  .home-intro .intro-box{padding:22px 20px}.quick-index{gap:12px}
  .split-strip,.vertical-records,.clip-pages,.two-cards,.app-feature,.record-layout,.open-layout,.clip-layout,.timeline-row,.check-list,.help-grid,.contact-paths,.brand-values,.center-cards{grid-template-columns:1fr}
  .open-layout .wide{grid-column:auto}.record-index{position:static}.period-grid,.tri-period{grid-template-columns:1fr}.faq-mini{grid-template-columns:1fr}
  .status-row{grid-template-columns:1fr;gap:8px}.status-pill{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
  .mobile-bottom{position:fixed;z-index:72;left:0;right:0;bottom: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:var(--surface);border-top:1px solid var(--border)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-bottom a.is-active{background:var(--green);color:var(--surface)}
  .side-drawer{top:8px;width:86vw;max-height:calc(100vh - 16px)}
  .search-panel{top:0;bottom:0;background:var(--green)}
  .search-card{width:100%;height:100%;margin:0;border:0;border-radius:0;background:var(--green);color:var(--surface);padding:24px 16px}
  .search-topline p,.search-card label{color:var(--bg)}.search-card strong{color:var(--surface)}.search-close{background:var(--surface)}.search-presets a{background:var(--surface);color:var(--title)}
}
@media (max-width:440px){.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.method-list article{grid-template-columns:40px 1fr}.drawer-group a{grid-template-columns:74px 1fr}}
.pad-24{padding:24px}
.pad-26{padding:26px}
.pad-28{padding:28px}
.text-center{text-align:center}
.lead-center{margin-inline:auto}
.home-records{grid-template-columns:1fr}
.home-records .record-stack{grid-template-columns:repeat(3,1fr)}
.home-records .record-item:first-child{grid-row:span 2}
.home-records .record-item .media-slot{margin-bottom:16px}
@media (max-width:760px){.home-records .record-stack{grid-template-columns:1fr}.home-records .record-item:first-child{grid-row:auto}}