:root{
  --bg:#FFF6F4;--deep:#F6E4E2;--surface:#FFFFFF;--soft:#FBECEA;--title:#1C1212;--text:#3E2424;--muted:#6E4848;--hint:#9A7070;--brand:#B4232C;--bright:#E23B44;--dark:#7A1520;--gold:#C4A06A;--ink:#1C1212;--border:rgba(180,35,44,.16);--shadow:0 12px 28px rgba(28,18,18,.08);--radius:12px;--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","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
.site-width{width:min(calc(100% - 32px),var(--max));margin-left:auto;margin-right:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.top-ribbon{position:fixed;top:0;left:0;right:0;height:18px;background:var(--dark);color:#fff;z-index:50;font-size:12px;line-height:18px}
.top-ribbon-inner{display:flex;justify-content:space-between;align-items:center;height:18px}
.text-button{border:0;background:transparent;color:#fff;padding:0 4px;height:18px;line-height:18px}
.brand-strip{position:fixed;top:18px;left:0;right:0;height:54px;background:rgba(255,246,244,.97);border-bottom:1px solid var(--border);z-index:49;backdrop-filter:blur(10px)}
.brand-strip-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand-link{display:flex;align-items:center;min-height:44px;gap:10px;font-weight:700;color:var(--ink)}
.brand-logo-slot,.footer-logo-slot,.fold-logo-slot{min-width:1px;display:flex;align-items:center}
.brand-logo-slot img,.footer-logo-slot img,.fold-logo-slot img{height:24px;width:auto;object-fit:contain;object-position:center}
.brand-fallback{font-size:16px}
.brand-actions{display:flex;align-items:center;gap:8px}
.app-quick,.fold-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px}
.app-quick{padding:0 14px;background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 55%,var(--dark) 100%);color:#fff;box-shadow:0 6px 16px rgba(180,35,44,.18)}
.fold-button{gap:6px;border:1px solid var(--border);background:#fff;color:var(--dark);padding:0 12px}
.seal-nav{position:fixed;top:72px;left:0;right:0;height:44px;background:var(--soft);border-bottom:1px solid var(--border);z-index:48}
.seal-nav-inner{height:44px;display:flex;align-items:center;gap:12px}
.seal-mark{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--brand);color:var(--brand);font-size:12px;font-weight:700}
.seal-link{min-height:32px;display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:8px;color:var(--dark);border:1px solid transparent}
.seal-link.is-current{background:var(--dark);color:#fff;border-color:var(--gold);box-shadow:0 6px 16px rgba(180,35,44,.18)}
.main-content{padding-top:144px;padding-bottom:52px;min-height:70vh}
.breadcrumb{display:flex;gap:7px;align-items:center;color:var(--hint);font-size:13px;margin-bottom:16px}
.breadcrumb a{color:var(--dark)}
h1,h2,h3{color:var(--title);margin-top:0;line-height:1.3}
h1{font-size:24px;margin-bottom:14px}h2{font-size:20px;margin-bottom:12px}h3{font-size:16px;margin-bottom:8px}
p{margin:0 0 14px}
.eyebrow{font-size:12px;letter-spacing:.08em;color:var(--dark);font-weight:700;margin-bottom:8px}
.lead{font-size:16px;line-height:1.8;color:var(--text)}
.section{margin:0 0 28px;padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.section-soft{background:var(--soft)}
.section-title-row{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:12px}
.kicker-chip{display:inline-flex;align-items:center;min-height:28px;padding:3px 10px;border-radius:999px;background:var(--soft);color:var(--dark);border:1px solid var(--border);font-size:13px}
.primary-button,.secondary-button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px;border-radius:10px;font-size:14px;transition:filter .18s ease,box-shadow .18s ease,transform .18s ease}
.primary-button{background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 55%,var(--dark) 100%);color:#fff;box-shadow:0 6px 16px rgba(180,35,44,.18)}
.secondary-button{background:#fff;color:var(--dark);border:1px solid var(--border)}
.primary-button:hover,.app-quick:hover,.seal-link.is-current:hover,.mobile-bottom .is-current:hover{filter:brightness(1.05);box-shadow:0 0 0 3px rgba(226,59,68,.28),0 10px 24px rgba(122,21,32,.28)}
.primary-button:active,.app-quick:active,.seal-link.is-current:active,.mobile-bottom .is-current:active{filter:brightness(1.08);box-shadow:0 0 0 4px rgba(196,160,106,.42),0 0 22px rgba(226,59,68,.50)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--bright);outline-offset:2px}
.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.image-slot{display:flex;align-items:center;justify-content:center;background:var(--soft);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.slot-horizontal{width:100%;height:168px}.slot-short{width:100%;height:160px}.slot-square{width:240px;max-width:100%;height:176px}.slot-app{width:240px;max-width:100%;height:320px}.slot-banner{width:100%;height:200px}
.hero-index{padding:26px 0 4px}
.one-seal-index{display:flex;align-items:center;gap:10px;margin-bottom:12px}.one-seal-index .seal-mark{background:var(--dark);color:#fff;border-color:var(--gold)}
.home-intro{max-width:760px;padding:8px 0 24px}
.home-intro h1{max-width:720px}
.home-intro .lead{max-width:730px}
.cut-row{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:center}
.double-red{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.red-story{border-top:3px solid var(--brand);padding-top:14px}.red-story:first-child{background:linear-gradient(180deg,var(--soft),#fff);padding:18px;border-radius:12px;border:1px solid var(--border);border-top:3px solid var(--brand)}
.page-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}.page-card{padding:18px;background:#fff;border:1px solid var(--border);border-radius:12px}.page-card:first-child{border-left:4px solid var(--brand)}
.schedule-strip{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}.status-badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:var(--dark);color:#fff;font-size:13px}
.annotation-box{border-left:4px solid var(--gold);padding-left:18px}
.topic-lines{display:grid;gap:10px}.topic-line{padding:12px 0;border-bottom:1px solid var(--border)}.topic-line:last-child{border-bottom:0}
.wrap-app{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start}.app-home-top{display:flex;flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:20px}.app-home-copy{max-width:760px}.app-icons{display:flex;gap:12px;align-items:center;margin-bottom:12px}.app-icons .icon-slot{width:48px;height:48px;border-radius:12px;background:var(--soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}.app-icons img{width:48px;height:48px;object-fit:contain}
.faq-mini details,.faq-list details{background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px 14px;margin-bottom:10px}.faq-mini summary,.faq-list summary{cursor:pointer;color:var(--dark);font-weight:700}.faq-mini p,.faq-list p{margin-top:10px;margin-bottom:0}
.brand-story{display:grid;grid-template-columns:1fr 200px;gap:24px;align-items:center}
.brand-story .image-slot{height:150px}

/* 内页：赤印索引 */
.layout-seal-index .index-strip{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}.layout-seal-index .index-strip span{padding:5px 10px;border:1px solid var(--border);background:var(--soft);border-radius:8px;color:var(--dark)}
/* 内页：印切 */
.layout-cut .cut-lead{display:grid;grid-template-columns:250px 1fr;gap:24px;align-items:center;margin-bottom:22px}.layout-cut .cut-block{padding:20px;border-left:4px solid var(--brand);background:#fff;border-radius:0 12px 12px 0;margin-bottom:14px}
/* 内页：双列赤 */
.layout-double .double-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.layout-double .double-card{padding:20px;background:#fff;border:1px solid var(--border);border-top:3px solid var(--brand);border-radius:12px}.layout-double .double-card.wide{grid-column:1/-1}
/* 内页：文绕印 */
.layout-wrap .wrap-lead{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:start}.layout-wrap .wrap-body{columns:2;column-gap:28px}.layout-wrap .wrap-body p{break-inside:avoid}
/* 内页：印页 */
.layout-pages .paper-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.layout-pages .paper{min-height:220px;padding:22px;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);position:relative}.layout-pages .paper:before{content:"";position:absolute;left:0;top:20px;width:4px;height:54px;background:var(--brand);border-radius:0 4px 4px 0}
.status-list{display:grid;gap:12px}.status-item{display:grid;grid-template-columns:100px 1fr;gap:14px;padding:16px;background:#fff;border:1px solid var(--border);border-radius:12px}.status-item strong{color:var(--dark)}
.long-note{max-width:760px;margin:0 auto}.long-note blockquote{margin:18px 0;padding:14px 18px;background:var(--soft);border-left:4px solid var(--gold);color:var(--muted)}
.topic-directory{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.topic-directory article{padding:20px;background:#fff;border:1px solid var(--border);border-radius:12px}.topic-directory a{color:var(--dark);font-weight:700}
.scene-steps{counter-reset:scene;display:grid;gap:14px}.scene-step{padding:18px 18px 18px 64px;background:#fff;border:1px solid var(--border);border-radius:12px;position:relative}.scene-step:before{counter-increment:scene;content:counter(scene);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--dark);color:#fff;font-weight:700}
.letter-paths{display:grid;gap:14px}.letter-path{padding:18px;background:#fff;border:1px solid var(--border);border-left:4px solid var(--gold);border-radius:0 12px 12px 0}
.terms article{padding:18px 0;border-bottom:1px solid var(--border)}.terms article:last-child{border-bottom:0}
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.help-grid article{padding:18px;background:#fff;border:1px solid var(--border);border-radius:12px}
.contact-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.contact-flow div{padding:14px;background:#fff;border:1px solid var(--border);border-radius:12px;text-align:center}
.about-banner{margin-bottom:22px}

.site-footer{background:var(--ink);color:var(--soft);border-top:1px solid var(--brand);padding:28px 0 calc(20px + env(safe-area-inset-bottom));font-size:13px}
.footer-top{display:grid;grid-template-columns:220px 1fr;gap:28px}.footer-brand{display:flex;flex-direction:column;gap:7px;align-items:flex-start}.footer-brand strong{font-size:16px;color:#fff}.footer-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.footer-groups section{display:flex;flex-direction:column;gap:6px}.footer-groups h2{font-size:14px;color:#fff;margin:0 0 6px}.footer-groups a{color:var(--soft)}.footer-note{padding-top:20px;margin-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#e9d8d6}.footer-note p{margin-bottom:6px}
.page-overlay{position:fixed;inset:0;background:rgba(28,18,18,.48);z-index:70;opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease}.page-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.modal-open{overflow:hidden}
.fold-panel{position:fixed;right:16px;top:80px;width:min(420px,calc(100% - 32px));max-height:68vh;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:0 20px 60px rgba(28,18,18,.2);z-index:80;opacity:0;transform:translateY(-8px) scale(.98);visibility:hidden;pointer-events:none;transition:.18s ease}.fold-panel.is-open{opacity:1;transform:none;visibility:visible;pointer-events:auto}.fold-head{display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid var(--border)}.fold-brand{display:flex;align-items:center;gap:10px;color:var(--ink)}.close-button{min-height:40px;padding:0 12px;border:1px solid var(--border);background:#fff;color:var(--dark);border-radius:9px}.fold-scroll{overflow:auto;max-height:calc(68vh - 68px);padding:12px}.fold-group{margin-bottom:14px}.fold-group h2{font-size:13px;color:var(--hint);margin:0 0 6px;padding:0 6px}.fold-group a{display:block;padding:9px 10px;border-radius:10px}.fold-group a:hover{background:var(--soft)}.fold-group span{display:block;color:var(--dark);font-weight:700}.fold-group small{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.search-layer{position:fixed;left:0;right:0;top:72px;z-index:79;visibility:hidden;opacity:0;pointer-events:none;transition:.18s ease}.search-layer.is-open{visibility:visible;opacity:1;pointer-events:auto}.search-card{width:min(calc(100% - 32px),760px);margin:8px auto 0;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:0 20px 60px rgba(28,18,18,.18);padding:18px}.search-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.search-head strong{color:var(--title);font-size:18px}.search-head p{margin:3px 0 0;color:var(--muted)}.search-input-wrap{display:block;margin-top:14px}.search-input-wrap input{width:100%;height:46px;border:1px solid var(--border);border-radius:10px;padding:0 14px;color:var(--text);background:var(--bg)}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid var(--border);border-radius:9px;color:var(--dark);background:#fff}.search-presets a[hidden]{display:none}
.mobile-bottom{display:none}

@media (max-width:760px){
  .site-width{width:calc(100% - 32px)}
  .seal-nav{display:none}.main-content{padding-top:96px;padding-bottom:82px}
  .brand-strip{top:18px}.brand-strip-inner{gap:8px}.brand-actions{gap:6px}.app-quick{padding:0 10px}.fold-button{padding:0 10px}.brand-fallback{font-size:15px}
  .cut-row,.wrap-app,.layout-cut .cut-lead,.layout-wrap .wrap-lead,.brand-story,.footer-top{grid-template-columns:1fr}
  .double-red,.page-pair,.layout-double .double-grid,.layout-pages .paper-grid,.topic-directory,.help-grid{grid-template-columns:1fr}
  .layout-wrap .wrap-body{columns:1}.slot-square,.slot-app{margin:0 auto}.contact-flow{grid-template-columns:1fr 1fr}.status-item{grid-template-columns:1fr}
  .footer-groups{grid-template-columns:1fr 1fr;gap:18px}.footer-brand{padding-bottom:4px}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:60;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);box-shadow:0 -8px 22px rgba(28,18,18,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;color:var(--dark);font-size:13px}.mobile-bottom a.is-current{background:var(--dark);color:#fff;box-shadow:0 6px 16px rgba(180,35,44,.18)}
  .fold-panel{top:78px;right:5%;width:90%;max-height:68vh}.fold-scroll{max-height:calc(68vh - 68px)}
  .search-layer{inset:0;top:0;background:var(--dark);padding:calc(24px + env(safe-area-inset-top)) 16px 70px}.search-card{width:100%;height:100%;margin:0;background:var(--dark);border:0;box-shadow:none;padding:8px 0;color:#fff}.search-head strong,.search-head p{color:#fff}.search-layer .close-button{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}.search-input-wrap input{background:#fff;border-color:#fff;color:var(--ink)}.search-presets a{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
  .section{padding:18px}.hero-index{padding-top:10px}
}
@media (max-width:430px){
  .brand-logo-slot img{max-width:110px}.brand-actions{flex:0 0 auto}.fold-button span:last-child{display:none}.app-quick{font-size:13px}.contact-flow{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr}
}
@media (max-width:760px){.site-footer{padding-bottom:calc(68px + env(safe-area-inset-bottom));}}