:root{
  --bg:#0C0B0A;--deep:#161311;--panel:#1C1916;--panel2:#26221D;--paper:#F3E6D2;
  --title:#FFF8F0;--text:#EDE4D8;--muted:#B7A898;--soft:#8A7B6C;--red:#E11D2E;
  --red2:#FF4A4F;--wine:#8B1E2D;--orange:#E25A2A;--amber:#E2B14A;
  --line:rgba(226,177,74,.16);--line-strong:rgba(225,29,46,.40);--shadow:0 18px 44px rgba(0,0,0,.46);
  --footer:#080706;--footer-text:#D8CBBA;--max:1280px;--read:780px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;word-break:break-word}
body.modal-open{position:fixed;left:0;right:0;width:100%;overflow:hidden}
a{color:inherit;text-decoration:none}
a:hover{color:var(--paper)}
button,input{font:inherit}
button{color:inherit}
img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}
figure{margin:0}
[hidden]{display:none!important;pointer-events:none!important}
.shell{width:min(calc(100% - 40px),var(--max));margin-inline:auto;min-width:0}
.site-main{min-height:58vh}
.skip-link{position:fixed;left:16px;top:10px;z-index:120;background:var(--paper);color:#241b15;padding:8px 12px;border-radius:6px;transform:translateY(-160%)}
.skip-link:focus{transform:none}
.brand-header{position:sticky;top:0;z-index:40;background:rgba(12,11,10,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.brand-header__inner{min-height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand__logo{height:34px;width:auto;max-width:180px;flex:0 0 auto}
.brand__text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand__text strong{font-size:18px;color:var(--title);letter-spacing:.04em}
.brand__text small{margin-top:4px;color:var(--muted);font-size:10px;letter-spacing:.13em}
.brand-actions{display:flex;align-items:center;gap:8px}
.brand-actions--mobile{display:none}
.text-action,.icon-button{min-height:44px;border:1px solid var(--line);background:transparent;color:var(--text);padding:8px 14px;border-radius:7px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.text-action:hover,.icon-button:hover,.text-action:focus-visible,.icon-button:focus-visible{border-color:var(--line-strong);background:var(--panel2);outline:2px solid transparent}
.channel-nav{background:var(--deep);border-bottom:1px solid var(--line)}
.channel-nav__desktop{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:18px 0}
.channel-group{display:grid;grid-template-columns:58px minmax(0,1fr);gap:14px;padding:0 20px;min-width:0;border-left:1px solid var(--line)}
.channel-group:first-child{border-left:0;padding-left:0}
.channel-group:last-child{padding-right:0}
.channel-group__name{font-size:12px;color:var(--amber);font-weight:700;letter-spacing:.08em}
.channel-group__links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 14px}
.channel-group__links a,.channel-nav__mobile a{position:relative;display:flex;align-items:center;min-height:32px;color:var(--muted);font-size:14px}
.channel-group__links a.is-current,.channel-nav__mobile a.is-current{color:var(--title);font-weight:700}
.channel-group__links a.is-current::before,.channel-nav__mobile a.is-current::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--red);margin-right:7px;flex:0 0 auto}
.channel-nav__mobile{display:none}

.hero,.section{padding:52px 0;border-bottom:1px solid var(--line)}
.hero--compact{padding:42px 0 34px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;color:var(--soft);font-size:13px;margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--amber);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin:0 0 12px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--red)}
h1,h2,h3{color:var(--title);line-height:1.3;margin-top:0}
h1{font-size:clamp(28px,3vw,34px);letter-spacing:-.02em;margin-bottom:14px}
h2{font-size:clamp(21px,2.2vw,26px);margin-bottom:14px;scroll-margin-top:108px}
h3{font-size:18px;margin-bottom:8px;scroll-margin-top:108px}
p{margin-top:0;margin-bottom:1em}
.lead{font-size:18px;line-height:1.9;color:var(--paper);max-width:850px}
.reading-column{width:min(100%,var(--read));margin-inline:auto}
.reading-column--left{margin-inline:0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px}
.section-head p{margin:0;max-width:700px;color:var(--muted)}
.section-title{margin-bottom:6px}
.muted{color:var(--muted)}
.soft{color:var(--soft)}
.rule-top{border-top:1px solid var(--line);padding-top:22px;margin-top:22px}
.callout{border-left:3px solid var(--red);background:var(--panel);padding:18px 20px;color:var(--text);border-radius:0 7px 7px 0}
.editor-note{border:1px solid var(--line-strong);background:linear-gradient(135deg,rgba(139,30,45,.22),rgba(28,25,22,.92));padding:20px;border-radius:8px}
.editor-note strong{color:var(--paper)}

.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.btn-primary,.btn-secondary,.text-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:7px;padding:10px 16px;font-weight:750}
.btn-primary{background:linear-gradient(135deg,#FF4A4F 0%,#E11D2E 46%,#E25A2A 100%);color:#fff;border:1px solid transparent}
.btn-secondary{background:var(--paper);color:#2d2119;border:1px solid var(--paper)}
.text-link{padding-inline:0;color:var(--paper);border-bottom:1px solid var(--line-strong);border-radius:0}
.btn-primary:hover,.btn-primary:focus-visible{color:#fff;filter:brightness(1.05);outline:2px solid var(--paper);outline-offset:2px}
.btn-secondary:hover,.btn-secondary:focus-visible{color:#2d2119;outline:2px solid var(--red);outline-offset:2px}
.text-link:hover,.text-link:focus-visible{color:var(--red2);outline:0;border-color:var(--red2)}

.cover-layout{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(320px,.94fr);gap:44px;align-items:center}
.cover-copy .lead{max-width:680px}
.cover-media,.section-media{display:flex;align-items:center;justify-content:center;background:var(--deep);border:1px solid var(--line);border-radius:9px;padding:16px;min-width:0}
.cover-media__img{max-height:300px;width:auto;height:auto}
.section-media__img{max-height:240px;width:auto;height:auto}
.media-fallback{border:1px solid var(--line);background:linear-gradient(135deg,var(--wine),var(--deep) 62%,var(--bg));padding:24px;border-radius:8px}
.media-fallback strong{display:block;color:var(--title);font-size:19px;margin-bottom:6px}
.media-fallback p{color:var(--muted);margin:0}

.grid-2,.grid-3,.grid-6{display:grid;gap:20px;min-width:0}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-6{grid-template-columns:repeat(3,minmax(0,1fr))}
.card,.plain-unit,.status-card,.step,.topic-block{min-width:0}
.card{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:20px}
.card h3{margin-bottom:9px}
.card p:last-child{margin-bottom:0}
.plain-unit{border-top:2px solid var(--line-strong);padding-top:14px}
.plain-unit .tag{display:inline-block;color:var(--amber);font-size:12px;margin-bottom:6px}
.list-clean{list-style:none;padding:0;margin:0}
.list-clean li{padding:12px 0;border-top:1px solid var(--line)}
.list-clean li:first-child{border-top:0;padding-top:0}
.list-clean strong{color:var(--paper)}
.two-col-media{display:grid;grid-template-columns:minmax(280px,.82fr) minmax(0,1.18fr);gap:34px;align-items:center}
.two-col-media--reverse{grid-template-columns:minmax(0,1.18fr) minmax(280px,.82fr)}
.topic-list{display:grid;gap:0;border-top:1px solid var(--line)}
.topic-row{display:grid;grid-template-columns:minmax(140px,.32fr) minmax(0,.68fr);gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.topic-row h3,.topic-row p{margin:0}
.topic-row p{color:var(--muted)}
.status-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.status-card{border:1px solid var(--line);border-left:3px solid var(--red);background:var(--deep);padding:15px;border-radius:6px}
.status-card:nth-child(2n){border-left-color:var(--amber)}
.status-card:nth-child(3n){border-left-color:var(--orange)}
.status-card strong{display:block;color:var(--paper);margin-bottom:5px}
.status-card span{display:block;color:var(--muted);font-size:14px}
.steps{counter-reset:step;display:grid;gap:0;border-top:1px solid var(--line)}
.step{position:relative;padding:20px 0 20px 52px;border-bottom:1px solid var(--line)}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:20px;width:30px;height:30px;border:1px solid var(--line-strong);border-radius:50%;display:grid;place-items:center;color:var(--paper);font-weight:800}
.step h3{margin-bottom:5px}.step p{margin:0;color:var(--muted)}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 28px}
.anchor-nav a{min-height:40px;display:inline-flex;align-items:center;padding:7px 12px;border:1px solid var(--line);border-radius:6px;color:var(--muted)}
.anchor-nav a:hover,.anchor-nav a:focus-visible{color:var(--title);border-color:var(--line-strong);outline:0}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 24px}
.tag-chip{display:inline-flex;align-items:center;min-height:36px;padding:5px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px}
.table-like{border:1px solid var(--line);border-radius:8px}
.table-like__row{display:grid;grid-template-columns:minmax(150px,.28fr) minmax(0,.72fr);gap:20px;padding:16px 18px;border-top:1px solid var(--line)}
.table-like__row:first-child{border-top:0}.table-like__row strong{color:var(--paper)}.table-like__row span{color:var(--muted)}
.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.related-links a{display:inline-flex;min-height:42px;align-items:center;padding:8px 12px;border:1px solid var(--line);border-radius:6px;color:var(--paper)}
.related-links a:hover,.related-links a:focus-visible{border-color:var(--line-strong);outline:0}
.wine-strip{background:linear-gradient(110deg,rgba(139,30,45,.64),rgba(28,25,22,.96));border-block:1px solid var(--line-strong)}
.app-layout{display:grid;grid-template-columns:minmax(260px,.72fr) minmax(0,1.28fr);gap:40px;align-items:center}
.app-media{display:flex;justify-content:center;align-items:center;background:var(--deep);border:1px solid var(--line);padding:18px;border-radius:9px}
.app-media img{max-height:420px;width:auto;height:auto}
.mark-icon{width:auto;height:auto;max-width:72px;max-height:72px;object-fit:contain}

.article-sections>section{padding:30px 0;border-top:1px solid var(--line)}
.article-sections>section:first-child{border-top:0;padding-top:0}
.article-sections p{color:var(--text)}
.article-sections ul,.article-sections ol{padding-left:1.2em}
.article-sections li{margin:.5em 0}
.split-article{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,320px);gap:46px;align-items:start}
.sidebar{border-left:1px solid var(--line);padding-left:24px;position:static}
.sidebar h2{font-size:18px}.sidebar p,.sidebar li{color:var(--muted);font-size:14px}
.faq-list{display:grid;gap:10px}
details{border:1px solid var(--line);background:var(--panel);border-radius:7px;padding:0 16px}
summary{cursor:pointer;min-height:52px;display:flex;align-items:center;color:var(--paper);font-weight:750;list-style:none}
summary::-webkit-details-marker{display:none}
details p{color:var(--muted);padding:0 0 16px;margin:0}

.site-footer{background:var(--footer);color:var(--footer-text);border-top:2px solid var(--red);padding:40px 0 calc(30px + env(safe-area-inset-bottom))}
.footer-brand{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.brand--footer{flex:0 0 auto}.footer-brand p{max-width:700px;color:var(--muted);margin:0}
.footer-directory{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:22px;padding:30px 0;border-bottom:1px solid var(--line)}
.footer-group h2{font-size:14px;color:var(--paper);margin-bottom:10px}
.footer-group a{display:block;color:var(--muted);font-size:13px;padding:4px 0}
.footer-group a.is-current{color:var(--red2);font-weight:750}
.footer-legal{padding-top:22px;color:var(--soft);font-size:13px}.footer-legal p{margin:.45em 0}

.site-overlay{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.72);backdrop-filter:blur(3px)}
.site-dialog{position:fixed;z-index:80;background:var(--panel);border:1px solid var(--line-strong);box-shadow:var(--shadow);color:var(--text);min-width:0}
.site-dialog--directory{width:min(960px,calc(100% - 48px));max-height:86dvh;left:50%;top:50%;transform:translate(-50%,-50%);border-radius:10px;display:flex;flex-direction:column}
.site-dialog--search{width:min(680px,calc(100% - 48px));max-height:78dvh;left:50%;top:50%;transform:translate(-50%,-50%);border-radius:10px;display:flex;flex-direction:column}
.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;border-bottom:1px solid var(--line);flex:0 0 auto}
.dialog-head>div{display:flex;flex-direction:column;min-width:0}.dialog-head strong{color:var(--title);font-size:18px}.dialog-head small{color:var(--soft);font-size:12px;margin-top:2px}
.dialog-brand{flex-direction:row!important;align-items:center;gap:10px}.dialog-logo{height:30px;width:auto;max-width:160px}
.dialog-body{overflow:auto;overscroll-behavior:contain;padding:20px}
.directory-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.directory-group h2{font-size:15px;color:var(--amber);padding-bottom:8px;border-bottom:1px solid var(--line)}
.directory-item{display:block;padding:10px 0;border-bottom:1px solid rgba(226,177,74,.09)}
.directory-item strong{display:block;color:var(--paper);font-size:14px}.directory-item span{display:block;color:var(--soft);font-size:12px;line-height:1.55;margin-top:3px}
.directory-item.is-current strong{color:var(--red2)}
.search-label{display:block;color:var(--paper);font-weight:750;margin-bottom:7px}
.search-input{width:100%;min-height:48px;background:var(--deep);color:var(--title);border:1px solid var(--line);border-radius:7px;padding:10px 12px;outline:0}
.search-input:focus{border-color:var(--red2);box-shadow:0 0 0 2px rgba(225,29,46,.22)}
.search-note,.search-empty{color:var(--soft);font-size:13px;margin:8px 0 12px}.search-empty{color:var(--amber)}
.search-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.search-result{border:1px solid var(--line);background:var(--deep);padding:12px;border-radius:7px;min-width:0}
.search-result strong{display:block;color:var(--paper)}.search-result span{display:block;color:var(--soft);font-size:12px;line-height:1.55;margin-top:3px}
.mobile-bottom-nav{display:none}

@media (max-width:1024px){
  .footer-directory{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cover-layout{grid-template-columns:minmax(0,1fr) minmax(300px,.8fr);gap:30px}
  .channel-group{padding:0 14px;grid-template-columns:50px minmax(0,1fr);gap:9px}
  .channel-group__links{gap:4px 9px}
  .split-article{grid-template-columns:minmax(0,1fr) 260px;gap:30px}
}
@media (max-width:768px){
  .shell{width:min(calc(100% - 32px),var(--max))}
  .brand-header__inner{min-height:68px}
  .brand__logo{height:30px;max-width:130px}
  .brand__text strong{font-size:16px}.brand__text small{font-size:9px}
  .brand-actions--desktop{display:none}.brand-actions--mobile{display:flex;gap:6px}.brand-actions--mobile .text-action{padding:7px 11px}
  .channel-nav__desktop{display:none}.channel-nav__mobile{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;padding:8px 0}
  .channel-nav__mobile a{justify-content:center;text-align:center;font-size:13px;min-height:42px}
  .hero,.section{padding:36px 0}.hero--compact{padding:32px 0 26px}
  h1{font-size:clamp(24px,7vw,28px)}h2{font-size:22px}.lead{font-size:17px}
  .cover-layout,.two-col-media,.two-col-media--reverse,.app-layout,.split-article{grid-template-columns:1fr;gap:24px}
  .grid-3,.grid-6{grid-template-columns:repeat(2,minmax(0,1fr))}
  .status-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sidebar{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:20px}
  .section-media__img{max-height:220px}.app-media img{max-height:360px}
  .footer-brand{display:block}.footer-brand p{margin-top:18px}.footer-directory{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 28px}
  .site-footer{padding-bottom:calc(92px + env(safe-area-inset-bottom))}
  .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:45;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));min-height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(8,7,6,.98);border-top:1px solid var(--line)}
  .mobile-bottom-nav a{min-height:56px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;position:relative}
  .mobile-bottom-nav a.is-current{color:var(--title);font-weight:800}.mobile-bottom-nav a.is-current::before{content:"";position:absolute;top:0;left:22%;right:22%;height:3px;background:var(--red)}
  .site-dialog--directory{left:0;right:0;top:auto;bottom:0;transform:none;width:100%;max-height:88dvh;max-height:min(88dvh,88vh);border-radius:12px 12px 0 0}
  .site-dialog--search{inset:0;transform:none;width:100%;max-height:none;border:0;border-radius:0;padding-bottom:calc(60px + env(safe-area-inset-bottom))}
  .directory-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
}
@media (max-width:540px){
  .grid-2,.grid-3,.grid-6,.status-grid,.search-results{grid-template-columns:1fr}
  .topic-row,.table-like__row{grid-template-columns:1fr;gap:7px}
  .section-head{display:block}.section-head p{margin-top:8px}
  .directory-grid{grid-template-columns:1fr}
  .cover-media,.section-media,.app-media{padding:10px}
  .cover-media__img{max-height:260px}.section-media__img{max-height:200px}
}
@media (max-width:360px){
  .brand__text small{display:none}.brand__logo{max-width:100px}.brand-actions--mobile .text-action{padding-inline:9px}
  .channel-nav__mobile{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-directory{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}