/* roulang page: index */
:root{
  --ink-900:#0E1512;
  --brand-700:#123B33;
  --brand-500:#2E6B5C;
  --brand-100:#DDE8E2;
  --accent:#D8552C;
  --accent-dark:#B8451F;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --line:#E3DED2;
  --muted:#6B7671;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-btn:6px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 8px 24px -12px rgba(14,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Songti SC","SimSun","Source Han Serif SC","Noto Serif SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--ink-900);letter-spacing:-.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  --bs-gutter-x:24px;
}
@media (min-width:1400px){.container{max-width:1240px}}

/* ---------- 顶部倒计时条 ---------- */
.ticker{
  background:var(--ink-900);
  color:#E8EFEA;
  height:44px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.ticker.is-hidden{display:none}
.ticker-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.ticker-left{display:flex;align-items:center;gap:12px;min-width:0}
.ticker-label{font-size:13px;color:#A9BAB2;letter-spacing:.02em;white-space:nowrap}
.ticker-time{
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  font-size:19px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--accent);
  font-family:var(--sans);
  transition:opacity .12s var(--ease);
}
.ticker-right{display:flex;align-items:center;gap:14px;min-width:0}
.ticker-note{font-size:12.5px;color:#A9BAB2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ticker-close{
  width:26px;height:26px;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:#D5E2DC;border-radius:var(--radius-sm);
  line-height:1;font-size:15px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.ticker-close:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4)}

/* ---------- 站点导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;gap:14px;height:72px}
.brand{
  font-size:20px;font-weight:700;letter-spacing:-.3px;color:var(--ink-900);
  white-space:nowrap;
}
.brand:hover{color:var(--brand-700)}
.brand-spacer{flex:1 1 auto}
.top-link{font-size:14px;color:var(--muted);white-space:nowrap;padding:6px 2px;border-bottom:1px solid transparent}
.top-link:hover{color:var(--ink-900);border-bottom-color:var(--ink-900)}
.icon-btn{
  width:36px;height:36px;border:1px solid var(--line);border-radius:50%;
  background:var(--surface);color:var(--brand-700);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{background:var(--brand-100);border-color:var(--brand-100);transform:translateY(-1px)}
.icon-btn svg{width:16px;height:16px}
.btn-ghost-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:var(--radius-btn);
  border:1px solid var(--ink-900);background:transparent;color:var(--ink-900);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost-cta:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}

.channel-wrap{position:relative;border-top:1px solid var(--line)}
.channel-wrap::after{
  content:"";position:absolute;top:0;right:0;width:48px;height:100%;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.98));
  pointer-events:none;
}
.channel-row{
  display:flex;align-items:stretch;gap:30px;height:48px;
  overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:48px;
  font-size:15px;color:var(--muted);white-space:nowrap;scroll-snap-align:start;
  transition:color .2s var(--ease);
}
.channel-link:hover{color:var(--ink-900)}
.channel-link.active{color:var(--ink-900);font-weight:600}
.channel-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);
}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:14px;
}
.section-kicker::before{content:"";width:22px;height:1px;background:var(--accent)}
.section-head h2{font-size:34px;line-height:1.25;font-weight:700}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-700);white-space:nowrap;
}
.link-more span{transition:transform .2s var(--ease)}
.link-more:hover span{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{padding:76px 0 96px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(34px,4.6vw,64px);
  line-height:1.08;
  letter-spacing:-.5px;
  font-weight:700;
  margin-bottom:20px;
}
.hero-sub{font-size:19px;line-height:1.75;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:30px;font-size:13px;color:var(--muted);letter-spacing:.02em}
.hero-meta .sep{width:1px;height:12px;background:var(--line)}
.hero-figure{position:relative}
.hero-figure .frame{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;aspect-ratio:4/5;background:var(--brand-100);
  box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.figure-tag{
  position:absolute;top:14px;right:14px;z-index:2;
  background:rgba(14,21,18,.82);color:#F2F6F3;
  font-size:12px;padding:6px 12px;border-radius:999px;
  backdrop-filter:blur(4px);
}
.figure-caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:44px 20px 18px;color:#fff;font-size:13.5px;
  background:linear-gradient(180deg,rgba(14,21,18,0),rgba(14,21,18,.72));
}

/* ---------- 按钮 ---------- */
.btn{transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease)}
.btn:focus,.btn:active:focus,.btn.active:focus{box-shadow:none}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);border:1px solid var(--accent);color:#fff;
  height:50px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  box-shadow:0 6px 16px -10px rgba(216,85,44,.8);
}
.btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-outline-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1px solid var(--ink-900);color:var(--ink-900);
  height:50px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
}
.btn-outline-ink:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-700);transform:translateY(-1px)}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-700);background:none;border:0;padding:0;
}
.btn-link-arrow span{transition:transform .2s var(--ease)}
.btn-link-arrow:hover span{transform:translateX(4px)}

/* ---------- 卖点区 ---------- */
.points{border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr)}
.point{padding:36px 28px 8px;border-right:1px solid var(--line);position:relative}
.point:last-child{border-right:0}
.point-num{
  font-family:var(--serif);font-size:44px;line-height:1;
  color:rgba(46,107,92,.28);font-weight:700;margin-bottom:18px;
}
.point h3{font-size:18px;font-weight:600;margin-bottom:10px;letter-spacing:0}
.point p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ---------- 图墙 ---------- */
.gallery{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  grid-auto-rows:210px;
  gap:16px;
}
.g-item{
  position:relative;overflow:hidden;border-radius:var(--radius-md);
  border:1px solid var(--line);background:var(--brand-100);
}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.g-item:hover img{transform:scale(1.04)}
.g-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,21,18,.05) 30%,rgba(14,21,18,.55));
}
.g-a{grid-column:span 6;grid-row:span 2}
.g-b{grid-column:span 3}
.g-c{grid-column:span 3}
.g-d{grid-column:span 3}
.g-e{grid-column:span 3}
.g-f{grid-column:span 12;grid-row:span 1}
.g-body{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:22px;display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
  color:#fff;
}
.g-body h3{color:#fff;font-size:19px;font-weight:600;letter-spacing:0;line-height:1.4}
.g-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  background:rgba(255,255,255,.92);color:var(--brand-700);
  font-size:11.5px;font-weight:600;padding:5px 11px;border-radius:999px;
}
.g-arrow{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  border:1px solid rgba(255,255,255,.6);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;transition:transform .2s var(--ease),background .2s var(--ease);
}
.g-item:hover .g-arrow{transform:translateX(4px);background:rgba(255,255,255,.18)}

/* ---------- 最新信息 CMS ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.post-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100);position:relative}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-cat{
  position:absolute;top:12px;left:12px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:11.5px;font-weight:600;padding:5px 11px;border-radius:999px;
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-body h3{
  font-size:18px;line-height:1.45;font-weight:600;letter-spacing:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.post-body h3 a{color:var(--ink-900)}
.post-body h3 a:hover{color:var(--brand-700)}
.post-excerpt{
  font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted);letter-spacing:.02em;
  border-top:1px solid var(--line);padding-top:14px;
}
.post-foot .arrow{transition:transform .2s var(--ease);color:var(--brand-700);font-weight:600}
.post-card:hover .post-foot .arrow{transform:translateX(4px)}
.empty-state{
  border:1.5px dashed var(--line);border-radius:var(--radius-md);
  padding:48px 24px;text-align:center;color:var(--muted);background:rgba(255,255,255,.5);
}
.empty-state .glyph{font-size:26px;color:var(--brand-500);display:block;margin-bottom:12px}
.empty-state p{font-size:14px;margin-bottom:12px}

/* ---------- 数据条 ---------- */
.stats{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat{padding:34px 28px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{font-family:var(--serif);font-size:40px;line-height:1.1;font-weight:700;color:var(--brand-700)}
.stat-num small{font-size:16px;font-family:var(--sans);color:var(--brand-500);margin-left:4px;font-weight:600}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:6px}

/* ---------- CTA 表单区 ---------- */
.cta-section{
  background:var(--ink-900);color:#EAF1EC;padding:96px 0;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:36px 36px;
}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.cta-section h2{color:#fff;font-size:34px;line-height:1.25;font-weight:700}
.cta-section .cta-desc{color:#A9BAB2;font-size:15px;line-height:1.8;margin-top:16px;max-width:420px}
.cta-points{margin-top:28px;display:grid;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#CBD9D3}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px;flex:0 0 6px}
.form-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-md);padding:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.form-field label{font-size:13px;color:#CBD9D3;letter-spacing:.02em}
.form-control{
  height:48px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:var(--surface);color:var(--ink-900);font-size:15px;padding:0 14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  width:100%;
}
.form-control::placeholder{color:#9AA39E}
.form-control:focus{
  border-color:var(--brand-700);box-shadow:none;background:var(--surface);color:var(--ink-900);
}
.form-check{display:flex;align-items:flex-start;gap:10px;margin-bottom:20px}
.form-check-input{
  width:16px;height:16px;margin-top:4px;flex:0 0 16px;
  border:1px solid #7E9089;border-radius:3px;background:transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.form-check-input:checked{background-color:var(--accent);border-color:var(--accent)}
.form-check-input:focus{box-shadow:none;border-color:var(--accent)}
.form-check-label{font-size:13px;color:#CBD9D3;line-height:1.7}
.form-check-label a{color:#EAF1EC;text-decoration:underline;text-underline-offset:3px}
.form-msg{font-size:13px;margin-top:14px;color:var(--accent)}
.form-msg.is-ok{color:#8FD6B8}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside h2{font-size:32px;line-height:1.25}
.faq-aside p{color:var(--muted);font-size:15px;margin-top:16px;max-width:340px}
.contact-box{
  margin-top:28px;border-top:1px solid var(--line);padding-top:22px;
  display:grid;gap:10px;font-size:14px;color:var(--muted);
}
.contact-box strong{display:block;color:var(--ink-900);font-size:15px;font-weight:600;margin-bottom:2px}
.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-border-width:0;--bs-accordion-bg:transparent}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--ink-900);
  font-size:17px;font-weight:600;font-family:var(--sans);
  padding:22px 0;line-height:1.5;box-shadow:none !important;
  position:relative;
}
.accordion-button::after{display:none}
.accordion-button:not(.collapsed){color:var(--brand-700)}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:-16px;top:20px;bottom:20px;width:3px;background:var(--accent);
}
.accordion-button .acc-icon{
  position:relative;width:16px;height:16px;margin-left:auto;flex:0 0 16px;
  transition:transform .24s var(--ease);
}
.accordion-button .acc-icon::before,
.accordion-button .acc-icon::after{
  content:"";position:absolute;background:var(--brand-700);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.accordion-button .acc-icon::before{left:0;top:7.25px;width:16px;height:1.5px}
.accordion-button .acc-icon::after{left:7.25px;top:0;width:1.5px;height:16px}
.accordion-button:not(.collapsed) .acc-icon{transform:rotate(180deg)}
.accordion-button:not(.collapsed) .acc-icon::after{opacity:0}
.accordion-body{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--muted);max-width:680px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-700);color:#CFDED7;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{font-size:19px;font-weight:700;color:#fff;letter-spacing:-.3px;margin-bottom:14px}
.footer-about{font-size:13.5px;line-height:1.85;color:#B7CAC2;max-width:320px}
.badge-group{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.kw-badge{
  font-size:11.5px;padding:5px 11px;border-radius:999px;
  background:rgba(255,255,255,.1);color:#DCE8E3;border:1px solid rgba(255,255,255,.16);
}
.footer-col h4{color:#fff;font-size:14px;font-family:var(--sans);font-weight:600;letter-spacing:.04em;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-list a{color:#B7CAC2;font-size:13.5px;transition:color .2s var(--ease)}
.footer-list a:hover{color:#fff}
.footer-contact{display:grid;gap:10px;font-size:13.5px;color:#B7CAC2}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#A5BCB3;
}
.footer-bottom .disclaimer{max-width:640px;line-height:1.7}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:960px}
  .hero-grid{gap:40px}
  .cta-grid{gap:40px}
  .faq-grid{gap:40px}
}
@media (max-width:991.98px){
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure{max-width:520px}
  .section{padding:72px 0}
  .points{grid-template-columns:repeat(2,1fr)}
  .point{border-bottom:1px solid var(--line)}
  .point:nth-child(2n){border-right:0}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .faq-aside p{max-width:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .g-a{grid-column:span 12;grid-row:span 2}
  .g-b,.g-c,.g-d,.g-e{grid-column:span 6}
  .g-f{grid-column:span 12}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-row{height:60px;gap:10px}
  .brand{font-size:17px}
  .top-link{display:none}
  .btn-ghost-cta{height:34px;padding:0 14px;font-size:13px}
  .icon-btn{width:32px;height:32px}
  .channel-row{gap:22px}
  .ticker-note{display:none}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:25px}
  .hero h1{font-size:clamp(30px,8vw,38px)}
  .hero-sub{font-size:16.5px}
  .hero-actions .btn-accent,.hero-actions .btn-outline-ink{flex:1 1 100%}
  .points{grid-template-columns:1fr}
  .point{border-right:0;padding:26px 0 20px}
  .gallery{grid-template-columns:1fr;grid-auto-rows:190px}
  .g-a,.g-b,.g-c,.g-d,.g-e,.g-f{grid-column:auto !important;grid-row:auto !important}
  .post-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:24px 0}
  .stat:last-child{border-bottom:0}
  .cta-section{padding:56px 0}
  .cta-section h2{font-size:26px}
  .form-card{padding:22px}
  .form-row{grid-template-columns:1fr}
  .accordion-button{font-size:15.5px;padding:18px 0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519.98px){
  .hero h1{font-size:30px}
  .ticker-time{font-size:16px}
  .g-body h3{font-size:16.5px}
}

/* roulang page: article */
:root{
  --ink-900:#0E1512;
  --brand-700:#123B33;
  --brand-500:#2E6B5C;
  --brand-100:#DDE8E2;
  --accent:#D8552C;
  --accent-dark:#BD4520;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --line:#E3DED2;
  --muted:#6B7671;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-btn:6px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 8px 24px -12px rgba(14,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Songti SC","SimSun","Source Han Serif SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4,h5{font-family:var(--font-serif);margin:0;font-weight:700;letter-spacing:-.3px;line-height:1.25;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
*:focus{outline:none;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:var(--radius-sm);
}
::selection{background:var(--brand-100);color:var(--brand-700);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  --bs-gutter-x:24px;
}
@media (min-width:1400px){
  .container{max-width:1240px;}
}

/* ============ 倒计时条 ============ */
.countdown-bar{
  background:var(--ink-900);
  color:#EFEDE6;
  height:44px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.countdown-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
}
.cd-left{display:flex;align-items:center;gap:10px;min-width:0;}
.cd-label{font-size:13px;letter-spacing:.04em;color:#B9C4BF;}
.cd-time{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:15px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
  color:var(--accent);
  font-weight:600;
}
.cd-right{display:flex;align-items:center;gap:14px;min-width:0;}
.cd-tip{font-size:12.5px;color:#9FACA7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.cd-close{
  width:22px;height:22px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
  color:#9FACA7;border-radius:50%;
  font-size:17px;transition:color .2s var(--ease),background .2s var(--ease);
}
.cd-close:hover{color:#fff;background:rgba(255,255,255,.12);}

/* ============ 头部 ============ */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);}
.brand-row{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  font-family:var(--font-serif);
  font-size:21px;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--ink-900);
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.brand:hover{color:var(--brand-500);}
.brand-spacer{flex:1 1 auto;}
.top-link{
  font-size:14px;
  color:var(--muted);
  padding:6px 2px;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.top-link:hover{color:var(--ink-900);border-bottom-color:var(--brand-500);}
.icon-btn{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  color:var(--brand-700);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn svg{width:17px;height:17px;}
.icon-btn:hover{background:var(--brand-100);border-color:var(--brand-100);transform:translateY(-1px);}
.btn-ghost-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;
  font-size:14px;font-weight:600;
  color:var(--brand-700);
  border:1px solid var(--brand-700);
  border-radius:var(--radius-btn);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost-cta:hover{background:var(--brand-100);transform:translateY(-1px);}
.btn-ghost-cta:active{transform:translateY(0);}

.channel-wrap{border-top:1px solid var(--line);}
.channel-row{
  display:flex;
  align-items:stretch;
  gap:30px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  font-size:14.5px;
  color:var(--muted);
  white-space:nowrap;
  scroll-snap-align:start;
  transition:color .2s var(--ease);
}
.channel-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.channel-link:hover{color:var(--ink-900);}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.active{color:var(--ink-900);font-weight:600;}
.channel-link.active::after{transform:scaleX(1);}

/* ============ 面包屑 ============ */
.breadcrumb-row{padding:22px 0 0;}
.crumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}
.crumb-list li{display:inline-flex;align-items:center;gap:8px;}
.crumb-list li+li::before{content:"/";color:#BFC4BE;}
.crumb-list a:hover{color:var(--brand-500);}
.crumb-list .current{color:var(--ink-900);max-width:44vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 主体布局 ============ */
.page-main{padding:26px 0 96px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:52px;
  align-items:start;
}
.article-main{min-width:0;max-width:760px;}

/* 文章头 */
.article-head{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:34px;}
.badge-soft{
  display:inline-block;
  padding:3px 12px;
  font-size:11.5px;
  letter-spacing:.04em;
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:999px;
  margin-bottom:16px;
}
.article-head h1{
  font-size:36px;
  line-height:1.28;
  letter-spacing:-.5px;
  margin-bottom:18px;
  overflow-wrap:break-word;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 16px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}
.meta-row .dot{color:#C6CBC5;}

/* 正文排版 */
.article-body{
  font-size:16px;
  line-height:1.9;
  color:#20281F;
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.4;
  margin:2em 0 .8em;
  padding-left:14px;
  color:var(--ink-900);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:3px;
  background:var(--accent);
  border-radius:2px;
}
.article-body h3{font-size:20px;line-height:1.45;margin:1.7em 0 .7em;color:var(--brand-700);}
.article-body h4{font-size:17px;margin:1.4em 0 .6em;color:var(--brand-700);}
.article-body a{color:var(--brand-500);border-bottom:1px solid rgba(46,107,92,.35);transition:color .2s var(--ease),border-color .2s var(--ease);}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.article-body strong{font-weight:600;color:var(--ink-900);}
.article-body ul,
.article-body ol{margin:0 0 1.3em;padding-left:2px;}
.article-body ul li,
.article-body ol li{
  position:relative;
  padding-left:20px;
  margin-bottom:.55em;
  line-height:1.85;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.78em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
}
.article-body ol{counter-reset:olcount;}
.article-body ol li{counter-increment:olcount;}
.article-body ol li::before{
  content:counter(olcount) ".";
  position:absolute;
  left:0;top:0;
  color:var(--accent);
  font-weight:600;
  font-size:14px;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:#FBF9F3;
  border-left:3px solid var(--brand-700);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#33413A;
  font-style:normal;
}
.article-body blockquote p{margin-bottom:.6em;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;
  height:auto;
  margin:1.6em auto;
  border-radius:6px;
  border:1px solid var(--line);
}
.article-body figure{margin:1.6em 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--muted);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:14.5px;
  border:1px solid var(--line);
}
.article-body th,
.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body code{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;
  font-size:14px;
  background:#F1EEE4;
  padding:1px 6px;
  border-radius:3px;
}

/* 空态 */
.empty-box{
  border:1.5px dashed var(--line);
  border-radius:var(--radius-md);
  padding:56px 24px;
  text-align:center;
  background:var(--surface);
}
.empty-box .empty-icon{
  width:46px;height:46px;
  margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:20px;
}
.empty-box h1{font-size:24px;margin-bottom:10px;}
.empty-box p{color:var(--muted);font-size:14.5px;margin-bottom:18px;}

/* 返回 / 文末 */
.article-foot{
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
}
.btn-primary-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  background:var(--accent);
  color:#fff;
  font-size:14.5px;font-weight:600;
  border-radius:var(--radius-btn);
  box-shadow:var(--shadow-1);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary-c:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary-c:active{transform:translateY(0);}
.btn-line-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  font-size:14.5px;font-weight:600;
  color:var(--ink-900);
  border:1px solid var(--ink-900);
  border-radius:var(--radius-btn);
  background:transparent;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-line-c:hover{background:var(--brand-100);transform:translateY(-1px);}
.ghost-link{
  font-size:14px;
  color:var(--brand-500);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.ghost-link span{transition:transform .2s var(--ease);}
.ghost-link:hover{color:var(--accent);}
.ghost-link:hover span{transform:translateX(4px);}

/* 延伸阅读 */
.relate-block{margin-top:56px;}
.section-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:24px;
}
.section-head h2{font-size:24px;}
.relate-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.relate-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;
  flex-direction:column;
}
.relate-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.relate-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100);}
.relate-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.relate-card:hover .relate-thumb img{transform:scale(1.04);}
.relate-body{padding:14px 16px 18px;}
.relate-body h3{font-size:16px;line-height:1.45;margin-bottom:8px;}
.relate-body p{font-size:13px;color:var(--muted);line-height:1.7;margin:0;}

/* 侧栏 */
.article-side{min-width:0;position:sticky;top:24px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:20px 20px 22px;
  box-shadow:var(--shadow-1);
}
.side-title{
  font-size:15px;
  font-family:var(--font-sans);
  font-weight:600;
  letter-spacing:.02em;
  color:var(--ink-900);
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.toc summary{
  list-style:none;
  cursor:pointer;
  font-size:15px;
  font-weight:600;
  color:var(--ink-900);
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  margin-bottom:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.toc summary::-webkit-details-marker{display:none;}
.toc summary::after{
  content:"+";
  font-size:17px;
  color:var(--brand-500);
  transition:transform .18s var(--ease);
}
.toc[open] summary::after{transform:rotate(45deg);}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;
  font-size:13.5px;
  line-height:1.6;
  color:var(--muted);
  padding:6px 10px;
  border-left:2px solid transparent;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
  overflow-wrap:break-word;
}
.toc-list a:hover{color:var(--brand-700);background:var(--brand-100);border-left-color:var(--brand-500);}
.toc-list .lvl-3 a{padding-left:22px;font-size:13px;}
.toc-empty{font-size:13px;color:var(--muted);padding:4px 0;}
.side-links li+li{border-top:1px solid var(--line);}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  font-size:14px;
  color:#2C352F;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.side-links a::after{content:"→";color:var(--brand-500);font-size:13px;transition:transform .2s var(--ease);}
.side-links a:hover{color:var(--accent);transform:translateX(3px);}
.side-links a:hover::after{transform:translateX(3px);}
.side-cta{
  background:var(--ink-900);
  color:#EDF1EE;
  border-radius:var(--radius-md);
  padding:24px 22px;
  border:1px solid #1B2521;
}
.side-cta h3{font-size:18px;line-height:1.45;margin-bottom:10px;color:#fff;}
.side-cta p{font-size:13.5px;line-height:1.75;color:#A9B5AF;margin-bottom:18px;}
.btn-accent-sm{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;
  background:var(--accent);
  color:#fff;
  font-size:13.5px;font-weight:600;
  border-radius:var(--radius-btn);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.btn-accent-sm:hover{background:var(--accent-dark);transform:translateY(-1px);}

/* 深色 CTA 条 */
.cta-strip{
  background:var(--ink-900);
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:36px 36px;
  color:#EEF1EE;
  padding:44px 0;
}
.cta-strip-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-strip h2{font-size:27px;color:#fff;margin-bottom:10px;line-height:1.35;}
.cta-strip p{font-size:14.5px;color:#A8B4AE;margin:0;max-width:620px;}
.cta-strip .btn-primary-c{flex:0 0 auto;}

/* 页脚 */
.site-footer{
  background:var(--brand-700);
  color:#D6E2DC;
  padding:64px 0 28px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.3px;
  margin-bottom:14px;
}
.footer-about{font-size:13.5px;line-height:1.85;color:#B7C7C0;margin-bottom:18px;max-width:330px;}
.badge-group{display:flex;flex-wrap:wrap;gap:8px;}
.kw-badge{
  font-size:11.5px;
  padding:3px 11px;
  border-radius:999px;
  color:#DDE9E4;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.14);
  letter-spacing:.02em;
}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:13.5px;
  font-weight:600;
  color:#fff;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:13.5px;color:#B7C7C0;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-list a:hover{color:#fff;transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:#B7C7C0;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
  padding-top:22px;
  font-size:12.5px;
  color:#9FB4AC;
}
.disclaimer{max-width:560px;line-height:1.7;}

/* Bootstrap 组件默认味道清理 */
.btn,.card,.accordion,.breadcrumb,.form-control,.badge{
  --bs-btn-focus-box-shadow:none;
  box-shadow:none;
}
.btn:focus,.btn:active,.form-control:focus{box-shadow:none;}
.card{border-radius:var(--radius-md);border-color:var(--line);}
.badge{border-radius:999px;font-weight:500;}

/* 动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 292px;gap:36px;}
  .relate-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;}
  .article-main{max-width:none;}
  .article-side{position:static;top:auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .article-side .side-cta{grid-column:1 / -1;}
  .cta-strip-inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-strip h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
  .channel-row{gap:24px;}
  .brand-row{height:64px;gap:14px;}
  .article-head h1{font-size:31px;}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  .cd-tip{display:none;}
  .breadcrumb-row{padding-top:18px;}
  .page-main{padding:20px 0 64px;}
  .article-head h1{font-size:28px;}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .relate-grid{grid-template-columns:minmax(0,1fr);}
  .article-side{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:30px;}
  .site-footer{padding-top:48px;}
  .cta-strip{padding:36px 0;}
  .article-foot{flex-direction:column;align-items:stretch;}
  .article-foot .btn-primary-c,.article-foot .btn-line-c{width:100%;}
  .crumb-list .current{max-width:52vw;}
  .brand{font-size:18px;}
  .top-link{display:none;}
}
@media (max-width:519px){
  .cd-time{font-size:13.5px;}
  .brand-row{height:60px;}
  .btn-ghost-cta{height:34px;padding:0 13px;font-size:13px;}
  .icon-btn{width:32px;height:32px;}
  .channel-row{height:44px;gap:20px;}
  .channel-link{font-size:13.5px;}
  .article-head h1{font-size:25px;}
  .article-body h2{font-size:20px;padding-left:12px;}
  .article-body blockquote{padding:14px 16px;}
  .cta-strip h2{font-size:21px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0E1512;
  --ink-800:#1B2621;
  --brand-700:#123B33;
  --brand-500:#2E6B5C;
  --brand-100:#DDE8E2;
  --accent:#D8552C;
  --accent-dark:#BF4723;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --line:#E3DED2;
  --muted:#6B7671;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-btn:6px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 8px 24px -12px rgba(14,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Songti SC","SimSun","Source Han Serif SC","Noto Serif SC",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  --bs-body-font-family:var(--sans);
  --bs-primary:#123B33;
  --bs-link-color:#123B33;
  --bs-link-hover-color:#2E6B5C;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){ .container{max-width:1240px;} }

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  gap:14px;
  height:72px;
}
.brand{
  font-family:var(--serif);
  font-size:22px;
  font-weight:700;
  letter-spacing:-0.3px;
  color:var(--ink-900);
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.brand:hover{color:var(--brand-700);}
.brand-spacer{flex:1 1 auto;}
.top-link{
  font-size:14px;
  color:var(--muted);
  padding:6px 2px;
  transition:color .2s var(--ease);
}
.top-link:hover{color:var(--ink-900);}
.icon-btn{
  width:36px;
  height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:50%;
  color:var(--brand-700);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{background:var(--brand-100);border-color:var(--brand-100);transform:translateY(-1px);}
.btn-ghost-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:38px;
  padding:0 18px;
  border:1px solid var(--ink-900);
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  color:var(--ink-900);
  background:transparent;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost-cta:hover{background:var(--brand-100);transform:translateY(-1px);}
.channel-wrap{
  position:relative;
  border-top:1px solid var(--line);
  background:var(--surface);
}
.channel-wrap::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  bottom:0;
  width:44px;
  background:linear-gradient(to right,rgba(255,255,255,0),var(--surface));
  pointer-events:none;
  opacity:0;
  transition:opacity .2s var(--ease);
}
.channel-row{
  display:flex;
  align-items:stretch;
  gap:30px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
  scroll-snap-type:x proximity;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:48px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  scroll-snap-align:start;
  transition:color .2s var(--ease);
}
.channel-link:hover{color:var(--ink-900);}
.channel-link.active{color:var(--ink-900);font-weight:600;}
.channel-link.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--accent);
}

/* ============ 通用板块与文字 ============ */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  font-weight:600;
  color:var(--brand-500);
  background:var(--brand-100);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:16px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-family:var(--serif);
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-0.4px;
}
.section-head p{
  margin-top:10px;
  font-size:15px;
  color:var(--muted);
  max-width:620px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  white-space:nowrap;
  transition:border-color .2s var(--ease);
}
.link-more:hover{border-color:var(--brand-700);}
.link-more::after{content:"→";transition:transform .2s var(--ease);}
.link-more:hover::after{transform:translateX(4px);}

.btn-solid,.btn-outline,.btn-outline-dark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:50px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-solid{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-solid:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-1px);}
.btn-outline-dark{background:transparent;border-color:var(--ink-900);color:var(--ink-900);}
.btn-outline-dark:hover{background:var(--brand-100);transform:translateY(-1px);color:var(--ink-900);}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(102deg,rgba(14,21,18,.94) 0%,rgba(14,21,18,.82) 52%,rgba(14,21,18,.52) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  padding-top:88px;
  padding-bottom:84px;
  max-width:820px;
}
.hero-tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:600;
  color:#F3D9CE;
  border:1px solid rgba(216,85,44,.65);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:22px;
}
.page-hero h1{
  font-family:var(--serif);
  font-size:clamp(32px,5.2vw,58px);
  line-height:1.14;
  font-weight:700;
  letter-spacing:-0.5px;
  margin-bottom:22px;
}
.hero-lead{
  font-size:clamp(16px,1.5vw,18px);
  line-height:1.9;
  color:rgba(255,255,255,.84);
  max-width:680px;
}
.hero-lead + .hero-lead{margin-top:8px;}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  margin-top:34px;
  font-size:13px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.66);
}
.hero-meta li{
  display:inline-flex;
  align-items:center;
}
.hero-meta li + li::before{
  content:"";
  display:inline-block;
  width:1px;
  height:12px;
  margin:0 14px;
  background:rgba(255,255,255,.3);
}

/* ============ 锚点标签行 ============ */
.anchor-bar-wrap{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.anchor-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  padding-top:20px;
  padding-bottom:20px;
}
.anchor-label{
  font-size:13px;
  color:var(--muted);
  letter-spacing:.06em;
  margin-right:4px;
}
.anchor-pill{
  display:inline-flex;
  align-items:center;
  padding:7px 16px;
  font-size:14px;
  color:var(--brand-700);
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.anchor-pill:hover{background:var(--brand-100);border-color:var(--brand-100);transform:translateY(-1px);}

/* ============ 图墙 ============ */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.tile{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  aspect-ratio:3/2;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease);
}
.tile:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.tile img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.tile:hover img{transform:scale(1.04);}
.tile-mask{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:20px 22px;
  background:linear-gradient(to top,rgba(14,21,18,.86) 0%,rgba(14,21,18,.42) 48%,rgba(14,21,18,0) 78%);
  color:#fff;
}
.tile-badge{
  position:absolute;
  top:16px;
  left:16px;
  font-size:11px;
  letter-spacing:.08em;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(247,244,236,.92);
  color:var(--brand-700);
  font-weight:600;
}
.tile-mask h3{
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:6px;
}
.tile-mask p{
  font-size:13px;
  line-height:1.7;
  color:rgba(255,255,255,.78);
}

/* ============ 流程步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step{
  border-top:2px solid var(--ink-900);
  padding-top:22px;
}
.step-num{
  display:block;
  font-family:var(--serif);
  font-size:44px;
  line-height:1;
  font-weight:700;
  color:rgba(46,107,92,.28);
  margin-bottom:14px;
}
.step h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:8px;
}
.step p{
  font-size:14.5px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ 环境与参数 ============ */
.env-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 56px;
}
.spec-row{
  display:grid;
  grid-template-columns:132px 1fr;
  gap:16px;
  padding:18px 0;
  border-top:1px solid var(--line);
  font-size:15px;
}
.spec-row dt{
  color:var(--brand-700);
  font-weight:600;
}
.spec-row dd{
  margin:0;
  color:var(--muted);
  line-height:1.8;
}
.env-note{
  margin-top:36px;
  padding:22px 26px;
  background:var(--brand-100);
  border-left:3px solid var(--brand-700);
  border-radius:var(--radius-sm);
  font-size:14.5px;
  line-height:1.9;
  color:var(--brand-700);
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:56px;
  align-items:start;
}
.faq-intro h2{
  font-family:var(--serif);
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-0.4px;
  margin-bottom:14px;
}
.faq-intro p{
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
  margin-bottom:24px;
}
.contact-box{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:20px 22px;
  background:var(--surface);
  box-shadow:var(--shadow-1);
}
.contact-box h3{
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
  margin-bottom:8px;
}
.contact-box p{
  font-size:13.5px;
  line-height:1.9;
  color:var(--muted);
  margin:0;
}
.faq-accordion{
  --bs-accordion-border-color:transparent;
  --bs-accordion-bg:transparent;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-active-bg:transparent;
  --bs-accordion-active-color:var(--ink-900);
  --bs-accordion-border-radius:0;
}
.faq-accordion .accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
  border-radius:0;
}
.faq-accordion .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-button{
  width:100%;
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  color:var(--ink-900);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  text-align:left;
  padding:22px 4px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  transition:padding .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--ink-900);
  box-shadow:inset 3px 0 0 0 var(--accent);
  padding-left:16px;
}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-button:not(.collapsed):focus{box-shadow:inset 3px 0 0 0 var(--accent);}
.faq-sign{
  position:relative;
  width:16px;
  height:16px;
  flex:0 0 16px;
}
.faq-sign::before,
.faq-sign::after{
  content:"";
  position:absolute;
  background:var(--brand-700);
  border-radius:1px;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-sign::before{left:0;right:0;top:7px;height:2px;}
.faq-sign::after{top:0;bottom:0;left:7px;width:2px;}
.accordion-button[aria-expanded="true"] .faq-sign::after{transform:scaleY(0);}
.accordion-button[aria-expanded="true"] .faq-sign::before{background:var(--accent);}
.faq-accordion .accordion-body{
  padding:0 4px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}

/* ============ 浅色 CTA 细条 ============ */
.cta-strip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:40px 44px;
  background:var(--brand-100);
  border-radius:var(--radius-md);
  border:1px solid #CFE0D8;
}
.cta-strip h2{
  font-family:var(--serif);
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.3;
  font-weight:700;
  margin-bottom:10px;
}
.cta-strip p{
  font-size:15px;
  line-height:1.85;
  color:var(--brand-700);
  max-width:620px;
  opacity:.92;
}
.cta-strip-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  flex:0 0 auto;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-700);
  color:#E9F0EC;
  padding:72px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:44px;
}
.footer-brand{
  font-family:var(--serif);
  font-size:21px;
  font-weight:700;
  letter-spacing:-0.3px;
  color:#fff;
  margin-bottom:14px;
}
.footer-about{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.72);
  margin-bottom:20px;
  max-width:340px;
}
.badge-group{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.kw-badge{
  font-size:11.5px;
  letter-spacing:.04em;
  padding:4px 11px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.86);
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-list a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-list a:hover{color:#fff;transform:translateX(3px);}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:13.5px;
  color:rgba(255,255,255,.72);
  line-height:1.8;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.disclaimer{max-width:640px;line-height:1.7;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .section{padding:80px 0;}
  .faq-wrap{gap:40px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .hero-inner{padding-top:64px;padding-bottom:62px;}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .env-grid{grid-template-columns:1fr;gap:0;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:34px 30px;}
  .channel-wrap::after{opacity:1;}
}
@media (max-width:767px){
  .brand-row{height:64px;gap:10px;}
  .brand{font-size:19px;}
  .top-link{display:none;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .hero-actions .btn-solid,.hero-actions .btn-outline{width:100%;}
  .hero-meta li + li::before{margin:0 10px;}
  .tile-mask{padding:16px;}
  .tile-mask h3{font-size:17px;}
  .cta-strip-actions .btn-solid,.cta-strip-actions .btn-outline-dark{width:100%;}
  .faq-accordion .accordion-button{font-size:16px;padding:18px 2px;}
  .faq-accordion .accordion-button:not(.collapsed){padding-left:14px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .page-hero h1{font-size:32px;}
  .gallery-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .step-num{font-size:38px;}
  .spec-row{grid-template-columns:1fr;gap:4px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .cta-strip{padding:28px 22px;}
  .hero-meta{font-size:12.5px;}
}

/* roulang page: category3 */
:root{
  --ink-900:#0E1512;
  --brand-700:#123B33;
  --brand-500:#2E6B5C;
  --brand-100:#DDE8E2;
  --accent:#D8552C;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --line:#E3DED2;
  --muted:#6B7671;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-btn:6px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 8px 24px -12px rgba(14,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Songti SC","SimSun","Source Han Serif SC","Noto Serif SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;

  --bs-body-bg:var(--paper);
  --bs-body-color:var(--ink-900);
  --bs-body-font-family:var(--font-sans);
  --bs-border-color:var(--line);
  --bs-link-color:var(--brand-700);
  --bs-link-hover-color:var(--accent);
  --bs-border-radius:var(--radius-md);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  --bs-gutter-x:24px;
}
@media (min-width:1400px){.container{max-width:1240px;}}

/* ============ 顶部提示条 ============ */
.notice-bar{
  background:var(--ink-900);
  color:#E8EFEA;
  font-size:13px;
}
.notice-inner{
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
}
.notice-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  flex:0 0 auto;
}
.notice-text{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  color:rgba(232,239,234,.86);
}
.notice-link{
  margin-left:auto;
  color:var(--accent);
  font-weight:600;
  white-space:nowrap;
}
.notice-link:hover{color:#F0A183;}

/* ============ 全站头部 ============ */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:1030;
  box-shadow:var(--shadow-1);
}
.brand-row{
  display:flex;
  align-items:center;
  gap:18px;
  height:72px;
}
.brand{
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--ink-900);
  white-space:nowrap;
  line-height:1.2;
}
.brand:hover{color:var(--brand-700);}
.brand-spacer{flex:1 1 auto;}
.top-link{
  font-size:14px;
  color:var(--muted);
  white-space:nowrap;
}
.top-link:hover{color:var(--ink-900);}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  background:transparent;
  color:var(--ink-900);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
  padding:0;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{background:var(--brand-100);border-color:var(--brand-500);color:var(--brand-700);}
.btn-ghost-cta{
  display:inline-flex;
  align-items:center;
  padding:9px 18px;
  border:1px solid var(--ink-900);
  border-radius:var(--radius-btn);
  color:var(--ink-900);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost-cta:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.channel-wrap{
  border-top:1px solid var(--line);
  background:var(--surface);
}
.channel-row{
  display:flex;
  align-items:stretch;
  gap:28px;
  height:48px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:100%;
  font-size:14px;
  color:var(--muted);
  white-space:nowrap;
  scroll-snap-align:start;
  transition:color .2s var(--ease);
}
.channel-link:hover{color:var(--ink-900);}
.channel-link.active{
  color:var(--ink-900);
  font-weight:600;
}
.channel-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--accent);
}

/* ============ 内页首屏 ============ */
.page-hero{
  padding:64px 0 60px;
  background:
    radial-gradient(circle at 88% 12%, rgba(46,107,92,.08), transparent 46%),
    var(--paper);
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:20px;
}
.page-title{
  font-family:var(--font-serif);
  font-size:clamp(32px,4vw,56px);
  line-height:1.12;
  letter-spacing:-.5px;
  font-weight:700;
  color:var(--ink-900);
  margin:0 0 18px;
}
.page-title .accent-word{color:var(--brand-700);}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
  max-width:560px;
  margin:0 0 26px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}
.hero-meta span{padding:0 14px;}
.hero-meta span:first-child{padding-left:0;}
.hero-meta span + span{border-left:1px solid var(--line);}
.hero-figure{
  position:relative;
  margin:0;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
  aspect-ratio:4/3;
  background:var(--brand-100);
  box-shadow:var(--shadow-2);
}
.hero-figure img{
  width:100%;height:100%;
  object-fit:cover;
}
.hero-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:16px 18px;
  font-size:12px;
  color:#fff;
  background:linear-gradient(180deg,transparent,rgba(14,21,18,.55));
}
.corner-tag{
  position:absolute;
  top:14px;right:14px;
  background:rgba(255,255,255,.94);
  color:var(--brand-700);
  border-radius:999px;
  font-size:11px;
  letter-spacing:.04em;
  padding:4px 12px;
  font-weight:600;
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-kicker{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--brand-500);
  text-transform:uppercase;
  margin-bottom:12px;
  font-weight:600;
}
.section-title{
  font-family:var(--font-serif);
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.28;
  letter-spacing:-.3px;
  margin:0 0 12px;
  color:var(--ink-900);
  font-weight:700;
}
.section-desc{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  margin:0;
}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 四步流程 ============ */
.flow-wrap{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.flow-step{
  padding:34px 26px 8px 0;
  position:relative;
}
.flow-step + .flow-step{
  border-left:1px solid var(--line);
  padding-left:26px;
}
.flow-num{
  font-family:var(--font-serif);
  font-size:52px;
  line-height:1;
  font-weight:700;
  color:rgba(46,107,92,.32);
  letter-spacing:-1px;
  margin-bottom:18px;
}
.flow-step h3{
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  margin:0 0 12px;
  color:var(--ink-900);
}
.flow-step p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  margin:0;
}
.flow-step::before{
  content:"";
  position:absolute;
  top:-1px;left:0;
  width:44px;height:2px;
  background:var(--accent);
}
.flow-step + .flow-step::before{left:26px;}

/* ============ 双列说明块 ============ */
.note-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
}
.note-block{
  border-top:1px solid var(--ink-900);
  padding-top:26px;
}
.note-block h3{
  font-family:var(--font-serif);
  font-size:22px;
  line-height:1.4;
  margin:0 0 18px;
  color:var(--ink-900);
  font-weight:700;
}
.note-list{
  list-style:none;
  margin:0;
  padding:0;
}
.note-list li{
  position:relative;
  padding:12px 0 12px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.note-list li:last-child{border-bottom:0;}
.note-list li::before{
  content:"";
  position:absolute;
  left:2px;top:22px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
}
.note-list strong{color:var(--ink-900);font-weight:600;}

/* ============ 风险对照 ============ */
.risk-list{border-top:1px solid var(--line);}
.risk-row{
  display:grid;
  grid-template-columns:240px 1fr;
  gap:32px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.risk-row:hover{transform:translateX(4px);}
.risk-scene{
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.7;
}
.risk-scene .risk-tag{
  display:inline-block;
  font-size:11px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:999px;
  padding:2px 10px;
  margin-right:10px;
  vertical-align:2px;
}
.risk-action{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  margin:0;
}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:56px;
  align-items:start;
}
.faq-aside h2{
  font-family:var(--font-serif);
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.3;
  margin:0 0 14px;
  font-weight:700;
}
.faq-aside p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  margin:0 0 24px;
}
.faq-contact{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:var(--surface);
  padding:20px;
  box-shadow:var(--shadow-1);
  font-size:14px;
  line-height:1.9;
  color:var(--muted);
}
.faq-contact strong{display:block;color:var(--ink-900);font-size:15px;margin-bottom:6px;}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none;}
.accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
  border-radius:0!important;
}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  position:relative;
  background:transparent;
  border-radius:0!important;
  box-shadow:none!important;
  color:var(--ink-900);
  font-size:16px;
  font-weight:600;
  line-height:1.65;
  padding:22px 44px 22px 0;
  transition:color .2s var(--ease),padding-left .24s var(--ease);
}
.accordion-button:not(.collapsed){
  color:var(--brand-700);
  padding-left:16px;
  border-left:3px solid var(--accent);
  background:transparent;
}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"＋";
  position:absolute;
  right:2px;
  top:50%;
  transform:translateY(-50%);
  font-size:16px;
  color:var(--brand-500);
  transition:color .2s var(--ease),transform .24s var(--ease);
}
.accordion-button:not(.collapsed)::before{content:"−";color:var(--accent);transform:translateY(-50%) rotate(180deg);}
.accordion-button:hover{color:var(--brand-700);}
.accordion-body{
  padding:0 44px 24px 0;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}
.accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:16px;}

/* ============ 深色 CTA ============ */
.cta-band{
  background:var(--ink-900);
  color:#EDF2EF;
  padding:80px 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.cta-band h2{
  font-family:var(--font-serif);
  font-size:clamp(24px,2.8vw,36px);
  line-height:1.28;
  letter-spacing:-.3px;
  margin:0 0 14px;
  color:#fff;
  font-weight:700;
}
.cta-band p{
  font-size:15px;
  line-height:1.85;
  color:rgba(237,242,239,.74);
  margin:0;
  max-width:520px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.btn-primary-custom{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--accent);
  border:1px solid var(--accent);
  color:#fff;
  border-radius:var(--radius-btn);
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary-custom:hover{
  background:#C04922;
  border-color:#C04922;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-outline-custom{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  border:1px solid rgba(237,242,239,.42);
  color:#EDF2EF;
  border-radius:var(--radius-btn);
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-outline-custom:hover{
  background:rgba(237,242,239,.12);
  border-color:rgba(237,242,239,.72);
  color:#fff;
  transform:translateY(-1px);
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-700);
  color:#DCE7E1;
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  letter-spacing:-.3px;
  color:#fff;
  margin-bottom:14px;
}
.footer-about{
  font-size:14px;
  line-height:1.85;
  color:rgba(220,231,225,.76);
  margin:0 0 18px;
  max-width:320px;
}
.badge-group{display:flex;flex-wrap:wrap;gap:8px;}
.kw-badge{
  display:inline-block;
  font-size:11px;
  letter-spacing:.04em;
  padding:4px 11px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  color:#E4EDE8;
  border:1px solid rgba(255,255,255,.14);
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin:0 0 16px;
}
.footer-list{display:grid;gap:10px;}
.footer-list a{
  font-size:14px;
  color:rgba(220,231,225,.78);
}
.footer-list a:hover{color:#fff;}
.footer-contact{display:grid;gap:10px;font-size:14px;color:rgba(220,231,225,.78);line-height:1.7;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(220,231,225,.68);
}
.disclaimer{max-width:640px;}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:6fr 6fr;gap:36px;}
  .risk-row{grid-template-columns:200px 1fr;gap:24px;}
}
@media (max-width:991px){
  .brand-row{height:64px;gap:14px;}
  .brand{font-size:20px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{aspect-ratio:16/9;order:-1;}
  .page-hero{padding:44px 0 44px;}
  .section{padding:72px 0;}
  .flow-wrap{grid-template-columns:repeat(2,1fr);border-top:0;}
  .flow-step{border-top:1px solid var(--line);padding:28px 24px 8px 0;}
  .flow-step + .flow-step{border-left:0;padding-left:0;}
  .flow-step:nth-child(even){border-left:1px solid var(--line);padding-left:26px;}
  .flow-step:nth-child(even)::before{left:26px;}
  .note-grid{grid-template-columns:1fr;gap:36px;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .risk-row{grid-template-columns:1fr;gap:8px;padding:20px 0;}
  .channel-row{
    -webkit-mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
  }
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .top-link{display:none;}
  .notice-inner{height:40px;gap:10px;}
  .notice-text{font-size:12px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .flow-wrap{grid-template-columns:1fr;}
  .flow-step,
  .flow-step:nth-child(even){border-left:0;padding-left:0;padding-right:0;}
  .flow-step + .flow-step{margin-top:4px;}
  .flow-num{font-size:44px;margin-bottom:12px;}
  .btn-primary-custom,.btn-outline-custom{width:100%;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:56px 0 28px;}
  .footer-bottom{margin-top:32px;}
  .accordion-button{font-size:15px;padding:18px 40px 18px 0;}
  .accordion-button:not(.collapsed){padding-left:14px;}
  .accordion-body{padding:0 0 20px;font-size:14px;}
  .accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:14px;}
  .hero-meta span{padding:0 10px;}
}
@media (max-width:575px){
  .page-title{font-size:30px;}
  .section-title{font-size:23px;}
  .brand{font-size:18px;}
  .btn-ghost-cta{padding:8px 14px;font-size:13px;}
  .icon-btn{width:34px;height:34px;}
  .channel-row{gap:20px;}
  .notice-link{display:none;}
  .hero-sub{font-size:15px;}
  .risk-scene{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.001ms!important;animation-duration:.001ms!important;}
}

/* roulang page: category2 */
:root{
    --ink-900:#0E1512;
    --brand-700:#123B33;
    --brand-500:#2E6B5C;
    --brand-100:#DDE8E2;
    --accent:#D8552C;
    --accent-dark:#BE4723;
    --paper:#F7F4EC;
    --surface:#FFFFFF;
    --line:#E3DED2;
    --muted:#6B7671;
    --radius-sm:4px;
    --radius-md:8px;
    --radius-btn:6px;
    --shadow-1:0 1px 2px rgba(14,21,18,.06);
    --shadow-2:0 8px 24px -12px rgba(14,21,18,.18);
    --ease:cubic-bezier(.2,.7,.3,1);
    --font-serif:"Songti SC","SimSun","Source Han Serif SC","Noto Serif SC",serif;
    --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
    --bs-body-font-family:var(--font-sans);
    --bs-body-color:var(--ink-900);
    --bs-body-bg:var(--paper);
    --bs-border-color:var(--line);
    --bs-link-color:var(--brand-700);
    --bs-link-hover-color:var(--accent);
    --bs-gutter-x:24px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.8;
    color:var(--ink-900);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
  a:hover{color:var(--accent)}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding-left:1.2em}
  button{font-family:inherit}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px}

  .container,
  .container-sm,
  .container-md,
  .container-lg,
  .container-xl,
  .container-xxl{
    width:100%;
    max-width:1200px;
    margin-right:auto;
    margin-left:auto;
    padding-right:24px;
    padding-left:24px;
  }
  @media (min-width:1400px){
    .container,.container-xl{max-width:1240px}
  }
  @media (max-width:575.98px){
    .container{padding-right:16px;padding-left:16px}
  }

  /* ---------- 头部 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:1030;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-1);
  }
  .brand-row{
    display:flex;
    align-items:center;
    gap:18px;
    height:72px;
  }
  .brand{
    font-family:var(--font-serif);
    font-size:22px;
    font-weight:700;
    letter-spacing:-.3px;
    color:var(--ink-900);
    white-space:nowrap;
  }
  .brand:hover{color:var(--brand-700)}
  .brand-spacer{flex:1 1 auto}
  .top-link{
    font-size:14px;
    color:var(--muted);
    white-space:nowrap;
  }
  .top-link:hover{color:var(--ink-900)}
  .icon-btn{
    width:40px;
    height:40px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line);
    border-radius:var(--radius-btn);
    background:transparent;
    color:var(--ink-900);
    cursor:pointer;
    transition:background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  }
  .icon-btn svg{width:18px;height:18px}
  .icon-btn:hover{background:var(--brand-100);border-color:var(--brand-100);transform:translateY(-1px)}
  .btn-ghost-cta{
    display:inline-flex;
    align-items:center;
    padding:9px 18px;
    font-size:14px;
    font-weight:600;
    color:var(--ink-900);
    border:1px solid var(--ink-900);
    border-radius:var(--radius-btn);
    background:transparent;
    white-space:nowrap;
    transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .btn-ghost-cta:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
  .channel-wrap{
    border-top:1px solid var(--line);
    position:relative;
  }
  .channel-row{
    display:flex;
    align-items:stretch;
    gap:30px;
    height:48px;
    overflow-x:auto;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .channel-row::-webkit-scrollbar{display:none}
  .channel-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:100%;
    font-size:15px;
    color:var(--muted);
    white-space:nowrap;
  }
  .channel-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:0;
    height:2px;
    background:var(--accent);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .28s var(--ease);
  }
  .channel-link:hover{color:var(--ink-900)}
  .channel-link.active{color:var(--ink-900);font-weight:600}
  .channel-link.active::after{transform:scaleX(1)}

  @media (max-width:991.98px){
    .brand-row{height:64px;gap:12px}
    .brand{font-size:19px}
    .top-link{display:none}
    .channel-row{gap:22px}
  }
  @media (max-width:575.98px){
    .brand-row{height:60px}
    .brand{font-size:17px}
    .icon-btn{width:36px;height:36px}
    .btn-ghost-cta{padding:8px 14px;font-size:13px}
    .channel-row{gap:18px;scroll-snap-type:x proximity}
    .channel-link{scroll-snap-align:start;font-size:14px}
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:64px 0}
  @media (min-width:992px){ .section{padding:88px 0} }
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:36px}
  .section-eyebrow{
    display:inline-block;
    font-size:12px;
    letter-spacing:.14em;
    color:var(--brand-500);
    margin-bottom:10px;
  }
  .section-title{
    font-family:var(--font-serif);
    font-size:30px;
    line-height:1.28;
    font-weight:700;
    color:var(--ink-900);
  }
  .section-sub{
    margin-top:12px;
    font-size:15px;
    color:var(--muted);
    max-width:720px;
  }
  @media (max-width:767.98px){
    .section-title{font-size:24px}
  }

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;
    color:#fff;
    background-image:
      linear-gradient(180deg,rgba(14,21,18,.80) 0%,rgba(14,21,18,.92) 100%),
      url("/assets/images/backpic/back-2.png");
    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;
    padding:64px 0 56px;
  }
  .hero-grid{
    display:grid;
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    gap:48px;
    align-items:center;
  }
  .crumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:rgba(255,255,255,.62);
    margin-bottom:22px;
  }
  .crumb a{color:rgba(255,255,255,.72)}
  .crumb a:hover{color:#fff}
  .crumb .sep{opacity:.5}
  .hero-badge{
    display:inline-flex;
    align-items:center;
    padding:4px 12px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.06em;
    background:rgba(216,85,44,.16);
    color:#F2B7A4;
    border:1px solid rgba(216,85,44,.4);
    margin-bottom:18px;
  }
  .hero-title{
    font-family:var(--font-serif);
    font-size:44px;
    line-height:1.16;
    font-weight:700;
    letter-spacing:-.5px;
    margin-bottom:18px;
  }
  .hero-lead{
    font-size:17px;
    line-height:1.9;
    color:rgba(255,255,255,.78);
    max-width:560px;
  }
  .hero-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:14px;
    margin-top:26px;
    font-size:13px;
    letter-spacing:.02em;
    color:rgba(255,255,255,.6);
  }
  .hero-meta .divider{width:1px;height:12px;background:rgba(255,255,255,.25)}
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:30px;
  }
  .hero-panel{
    border:1px solid rgba(255,255,255,.18);
    border-radius:var(--radius-md);
    background:rgba(255,255,255,.06);
    padding:26px;
    backdrop-filter:blur(2px);
  }
  .panel-title{
    font-size:13px;
    letter-spacing:.12em;
    color:rgba(255,255,255,.6);
    margin-bottom:16px;
  }
  .panel-row{
    display:flex;
    justify-content:space-between;
    gap:16px;
    padding:12px 0;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:14px;
  }
  .panel-row:first-of-type{border-top:none;padding-top:0}
  .panel-row span{color:rgba(255,255,255,.6)}
  .panel-row strong{font-weight:600;color:#fff;text-align:right}

  @media (max-width:991.98px){
    .hero-grid{grid-template-columns:1fr;gap:32px}
    .hero-title{font-size:34px}
    .hero-lead{font-size:16px}
  }
  @media (max-width:575.98px){
    .page-hero{padding:44px 0 40px}
    .hero-title{font-size:27px;line-height:1.22}
    .hero-actions .btn{width:100%}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 22px;
    font-size:15px;
    font-weight:600;
    line-height:1.4;
    border-radius:var(--radius-btn);
    border:1px solid transparent;
    box-shadow:none;
    transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  }
  .btn:focus,.btn:focus-visible{box-shadow:none;outline:2px solid var(--accent);outline-offset:2px}
  .btn-accent{background:var(--accent);color:#fff}
  .btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
  .btn-outline-ink{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
  .btn-outline-ink:hover{background:var(--brand-100);color:var(--ink-900);transform:translateY(-1px)}
  .btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
  .btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-1px)}

  /* ---------- 清单主体 ---------- */
  .list-layout{
    display:grid;
    grid-template-columns:minmax(0,3fr) minmax(0,9fr);
    gap:48px;
    align-items:start;
  }
  .list-index{
    position:sticky;
    top:140px;
  }
  .index-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    box-shadow:var(--shadow-1);
    padding:24px;
  }
  .index-label{
    font-size:12px;
    letter-spacing:.14em;
    color:var(--muted);
    margin-bottom:16px;
  }
  .index-nav{display:flex;flex-direction:column}
  .index-nav a{
    position:relative;
    padding:11px 0 11px 18px;
    font-size:15px;
    color:var(--ink-900);
    border-bottom:1px solid var(--line);
    transition:color .2s var(--ease),padding-left .2s var(--ease);
  }
  .index-nav a:last-child{border-bottom:none}
  .index-nav a::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    width:8px;height:1px;
    background:var(--brand-500);
    transform:translateY(-50%);
    transition:width .2s var(--ease),background-color .2s var(--ease);
  }
  .index-nav a:hover{color:var(--accent);padding-left:22px}
  .index-nav a:hover::before{width:12px;background:var(--accent)}
  .index-note{
    margin-top:22px;
    padding-top:20px;
    border-top:1px dashed var(--line);
  }
  .note-tag{
    display:inline-block;
    padding:3px 10px;
    border-radius:999px;
    font-size:11px;
    letter-spacing:.05em;
    background:var(--brand-100);
    color:var(--brand-700);
    margin-bottom:10px;
  }
  .index-note p{font-size:13px;line-height:1.8;color:var(--muted)}

  .entry-group + .entry-group{margin-top:48px}
  .group-title{
    font-family:var(--font-serif);
    font-size:22px;
    font-weight:700;
    color:var(--ink-900);
    margin-bottom:6px;
  }
  .group-desc{
    font-size:14px;
    color:var(--muted);
    margin-bottom:18px;
  }
  .entry-list{display:block}
  .entry-item{
    display:grid;
    grid-template-columns:56px minmax(0,1fr) 22px;
    align-items:center;
    gap:16px;
    padding:18px 8px;
    border-top:1px solid var(--line);
    color:inherit;
    transition:transform .2s var(--ease),background-color .2s var(--ease);
  }
  .entry-list .entry-item:last-child{border-bottom:1px solid var(--line)}
  .entry-item:hover{transform:translateX(4px);background:rgba(221,232,226,.4);color:inherit}
  .entry-no{
    font-family:var(--font-serif);
    font-size:22px;
    line-height:1;
    color:var(--brand-500);
    opacity:.55;
    font-variant-numeric:tabular-nums;
  }
  .entry-title{
    display:block;
    font-size:17px;
    font-weight:600;
    color:var(--ink-900);
    margin-bottom:4px;
  }
  .entry-desc{
    display:block;
    font-size:14px;
    line-height:1.7;
    color:var(--muted);
  }
  .entry-arrow{
    width:20px;height:20px;
    color:var(--muted);
    transition:transform .2s var(--ease),color .2s var(--ease);
  }
  .entry-item:hover .entry-arrow{transform:translateX(4px);color:var(--accent)}

  @media (max-width:991.98px){
    .list-layout{grid-template-columns:1fr;gap:32px}
    .list-index{position:static}
    .index-card{padding:20px}
  }
  @media (max-width:575.98px){
    .entry-item{grid-template-columns:38px minmax(0,1fr) 18px;gap:12px;padding:16px 4px}
    .entry-no{font-size:18px}
    .entry-title{font-size:16px}
    .entry-desc{font-size:13px}
    .group-title{font-size:20px}
  }

  /* ---------- 系统要求表 ---------- */
  .spec-wrap{
    display:grid;
    grid-template-columns:minmax(0,4fr) minmax(0,8fr);
    gap:48px;
    align-items:start;
  }
  .spec-table{
    border-top:1px solid var(--line);
  }
  .spec-row{
    display:grid;
    grid-template-columns:200px minmax(0,1fr);
    gap:20px;
    padding:16px 0;
    border-bottom:1px solid var(--line);
    font-size:15px;
  }
  .spec-row dt{color:var(--muted);font-weight:400}
  .spec-row dd{margin:0;color:var(--ink-900)}
  @media (max-width:991.98px){
    .spec-wrap{grid-template-columns:1fr;gap:28px}
  }
  @media (max-width:575.98px){
    .spec-row{grid-template-columns:1fr;gap:4px;font-size:14px}
  }

  /* ---------- FAQ ---------- */
  .faq-layout{
    display:grid;
    grid-template-columns:minmax(0,4fr) minmax(0,8fr);
    gap:48px;
    align-items:start;
  }
  .faq-aside p{font-size:15px;color:var(--muted);line-height:1.9;margin-top:14px;max-width:320px}
  .faq-aside .aside-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:18px;
    font-size:15px;
    font-weight:600;
    color:var(--accent);
  }
  .faq-aside .aside-link:hover{color:var(--accent-dark)}
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{
    position:relative;
    list-style:none;
    cursor:pointer;
    padding:20px 44px 20px 16px;
    font-size:17px;
    font-weight:600;
    color:var(--ink-900);
    transition:color .2s var(--ease),box-shadow .24s var(--ease),background-color .2s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"+";
    position:absolute;
    right:16px;top:50%;
    transform:translateY(-50%);
    font-size:20px;
    line-height:1;
    color:var(--muted);
    transition:transform .24s var(--ease),color .24s var(--ease);
  }
  .faq-item summary:hover{background:rgba(221,232,226,.35)}
  .faq-item[open] summary{box-shadow:inset 3px 0 0 var(--accent);color:var(--brand-700)}
  .faq-item[open] summary::after{content:"−";color:var(--accent);transform:translateY(-50%) rotate(180deg)}
  .faq-body{
    padding:0 44px 22px 16px;
    font-size:15px;
    line-height:1.9;
    color:var(--muted);
  }
  @media (max-width:991.98px){
    .faq-layout{grid-template-columns:1fr;gap:28px}
  }
  @media (max-width:575.98px){
    .faq-item summary{font-size:15px;padding:16px 40px 16px 12px}
    .faq-body{padding:0 24px 18px 12px;font-size:14px}
  }

  /* ---------- 深色 CTA ---------- */
  .cta-band{
    background:var(--ink-900);
    color:#fff;
    border-radius:var(--radius-md);
    padding:44px;
    display:grid;
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    gap:36px;
    align-items:center;
  }
  .cta-band h2{
    font-family:var(--font-serif);
    font-size:28px;
    line-height:1.3;
    font-weight:700;
    margin-bottom:12px;
  }
  .cta-band p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.72)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
  @media (max-width:991.98px){
    .cta-band{grid-template-columns:1fr;padding:32px;gap:24px}
    .cta-actions{justify-content:flex-start}
  }
  @media (max-width:575.98px){
    .cta-band h2{font-size:22px}
    .cta-actions .btn{width:100%}
  }

  /* ---------- 关联分类卡 ---------- */
  .cat-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .cat-card{
    display:flex;
    flex-direction:column;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    box-shadow:var(--shadow-1);
    overflow:hidden;
    color:inherit;
    transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
  }
  .cat-card:hover{
    transform:translateY(-2px);
    box-shadow:var(--shadow-2);
    border-color:var(--brand-100);
    color:inherit;
  }
  .cat-thumb{aspect-ratio:3/2;overflow:hidden;background:var(--brand-100)}
  .cat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
  .cat-card:hover .cat-thumb img{transform:scale(1.04)}
  .cat-body{padding:20px 22px 22px}
  .cat-tag{
    display:inline-block;
    padding:3px 10px;
    border-radius:999px;
    font-size:11px;
    letter-spacing:.05em;
    background:var(--brand-100);
    color:var(--brand-700);
    margin-bottom:12px;
  }
  .cat-title{
    font-family:var(--font-serif);
    font-size:19px;
    font-weight:700;
    color:var(--ink-900);
    margin-bottom:8px;
  }
  .cat-desc{font-size:14px;line-height:1.8;color:var(--muted)}
  .cat-more{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:16px;
    font-size:14px;
    font-weight:600;
    color:var(--accent);
  }
  @media (max-width:991.98px){
    .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  }
  @media (max-width:575.98px){
    .cat-grid{grid-template-columns:1fr}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-700);
    color:#e8efe9;
    padding-top:64px;
    margin-top:88px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.7fr 1fr 1fr 1.1fr;
    gap:40px;
  }
  .footer-brand{
    font-family:var(--font-serif);
    font-size:22px;
    font-weight:700;
    color:#fff;
    margin-bottom:14px;
    letter-spacing:-.3px;
  }
  .footer-about{
    font-size:14px;
    line-height:1.9;
    color:rgba(232,239,233,.72);
    max-width:320px;
  }
  .badge-group{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
  .kw-badge{
    font-size:12px;
    padding:4px 10px;
    border-radius:999px;
    background:rgba(255,255,255,.1);
    color:#dfe9e2;
    border:1px solid rgba(255,255,255,.14);
  }
  .footer-col h4{
    font-size:14px;
    font-weight:600;
    color:#fff;
    letter-spacing:.04em;
    margin-bottom:16px;
  }
  .footer-list{display:flex;flex-direction:column;gap:10px}
  .footer-list a{
    font-size:14px;
    color:rgba(232,239,233,.72);
  }
  .footer-list a:hover{color:#fff}
  .footer-contact{
    display:flex;
    flex-direction:column;
    gap:10px;
    font-size:14px;
    color:rgba(232,239,233,.72);
    line-height:1.7;
  }
  .footer-bottom{
    margin-top:52px;
    border-top:1px solid rgba(255,255,255,.14);
    padding:20px 0;
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:12px;
    font-size:13px;
    color:rgba(232,239,233,.6);
  }
  .footer-bottom .disclaimer{max-width:640px}
  @media (max-width:991.98px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .site-footer{padding-top:48px;margin-top:64px}
  }
  @media (max-width:575.98px){
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;font-size:12px}
  }

  /* 进入动画 */
  .fade-up{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
  .fade-up.in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    .fade-up{opacity:1;transform:none;transition:none}
    *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  }

/* roulang page: category4 */
:root{
  --ink-900:#0E1512;
  --brand-700:#123B33;
  --brand-500:#2E6B5C;
  --brand-100:#DDE8E2;
  --accent:#D8552C;
  --accent-dark:#BE4723;
  --paper:#F7F4EC;
  --surface:#FFFFFF;
  --line:#E3DED2;
  --muted:#6B7671;
  --body-text:#28312D;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-btn:6px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 8px 24px -12px rgba(14,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Songti SC","SimSun","Source Han Serif SC","Noto Serif SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;

  --bs-body-bg:#F7F4EC;
  --bs-body-color:#28312D;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  --bs-link-color:#123B33;
  --bs-link-hover-color:#D8552C;
  --bs-border-color:#E3DED2;
  --bs-border-radius:8px;
  --bs-primary:#123B33;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.site-body{
  margin:0;
  background:var(--paper);
  color:var(--body-text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink-900);font-weight:700}
p{margin:0 0 1em}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit}
ul{margin:0;padding-left:1.1em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}

body .container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
  --bs-gutter-x:0;
}
@media (min-width:1400px){
  body .container{max-width:1240px}
}
@media (max-width:767.98px){
  body .container{padding-left:16px;padding-right:16px}
}

/* ---------- 顶部品牌行 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  gap:16px;
  height:72px;
}
.brand{
  font-family:var(--serif);
  font-size:22px;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--ink-900);
  white-space:nowrap;
}
.brand:hover{color:var(--brand-700)}
.brand-spacer{flex:1 1 auto}
.top-link{
  font-size:14px;
  color:var(--muted);
  padding:6px 2px;
}
.top-link:hover{color:var(--brand-700)}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
  color:var(--ink-900);
  cursor:pointer;
  transition:border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn svg{width:17px;height:17px}
.icon-btn:hover{border-color:var(--brand-500);background:var(--brand-100);transform:translateY(-1px)}
.btn-ghost-cta{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 18px;
  border:1px solid var(--ink-900);
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  color:var(--ink-900);
  white-space:nowrap;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost-cta:hover{
  background:var(--brand-100);
  border-color:var(--brand-700);
  color:var(--brand-700);
  transform:translateY(-1px);
}

/* ---------- 频道行 ---------- */
.channel-wrap{
  border-top:1px solid var(--line);
  background:var(--surface);
  position:relative;
}
.channel-row{
  display:flex;
  align-items:center;
  gap:30px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  scroll-snap-type:x proximity;
}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:48px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  scroll-snap-align:start;
  transition:color .2s var(--ease);
}
.channel-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.channel-link:hover{color:var(--ink-900)}
.channel-link.active{color:var(--ink-900);font-weight:600}
.channel-link.active::after{transform:scaleX(1)}

/* ---------- 通用按钮 ---------- */
.btn-primary-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  border:1px solid var(--accent);
  border-radius:var(--radius-btn);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary-x:hover{
  background:var(--accent-dark);
  border-color:var(--accent-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-secondary-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 26px;
  border:1px solid var(--ink-900);
  border-radius:var(--radius-btn);
  background:transparent;
  color:var(--ink-900);
  font-size:15px;
  font-weight:600;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-secondary-x:hover{
  background:var(--brand-100);
  border-color:var(--brand-700);
  color:var(--brand-700);
  transform:translateY(-1px);
}

/* ---------- Hero ---------- */
.page-hero{
  padding:76px 0 68px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#FBFAF5 0%,var(--paper) 100%);
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--brand-500);
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:28px;
  height:1px;
  background:var(--accent);
}
.page-hero h1{
  font-size:52px;
  line-height:1.12;
  letter-spacing:-.5px;
  margin:0 0 22px;
}
.hero-lead{
  font-size:17px;
  line-height:1.85;
  color:#3B4540;
  max-width:34em;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:26px;
}
.meta-line{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}
.meta-line span + span{
  padding-left:14px;
  border-left:1px solid var(--line);
}
.hero-figure{
  position:relative;
  aspect-ratio:4/5;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  background:var(--surface);
  box-shadow:var(--shadow-2);
}
.hero-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-figure .figure-tag{
  position:absolute;
  top:14px;
  right:14px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--brand-700);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  max-width:760px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:34px;
  line-height:1.28;
  letter-spacing:-.3px;
  margin:0 0 14px;
}
.section-head p{
  margin:0;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}
.section-kicker{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--brand-500);
  margin-bottom:14px;
}

/* ---------- FAQ 双列手风琴 ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 56px;
  align-items:start;
}
.faq .accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
  border-radius:0;
}
.faq .accordion-item:last-child{border-bottom:1px solid var(--line)}
.faq .accordion-header{margin:0;font-family:var(--sans)}
.faq .accordion-button{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  position:relative;
  padding:19px 4px 19px 16px;
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  font-family:var(--sans);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink-900);
  text-align:left;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.faq .accordion-button::after{display:none}
.faq .accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:3px;
  height:22px;
  border-radius:2px;
  background:var(--accent);
  transform:translateY(-50%) scaleY(0);
  transform-origin:center;
  transition:transform .24s var(--ease);
}
.faq .accordion-button:hover{color:var(--brand-700)}
.faq .accordion-button:not(.collapsed){color:var(--brand-700)}
.faq .accordion-button:not(.collapsed)::before{transform:translateY(-50%) scaleY(1)}
.faq .accordion-button:focus{box-shadow:none}
.faq .accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.q-icon{
  position:relative;
  flex:0 0 14px;
  width:14px;
  height:14px;
  margin-left:auto;
}
.q-icon::before,
.q-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-500);
  border-radius:1px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.q-icon::before{left:0;top:6px;width:14px;height:2px}
.q-icon::after{left:6px;top:0;width:2px;height:14px}
.faq .accordion-button:not(.collapsed) .q-icon::after{transform:rotate(90deg);opacity:0}
.faq .accordion-body{
  padding:0 40px 22px 16px;
  font-size:15px;
  line-height:1.85;
  color:#4A544E;
}
.faq .accordion-body p{margin:0}

/* ---------- 深色 CTA 卡 ---------- */
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:44px 48px;
  border-radius:var(--radius-md);
  background-color:var(--ink-900);
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size:64px 64px, 64px 64px;
  color:#fff;
}
.cta-card h2{
  color:#fff;
  font-size:27px;
  line-height:1.35;
  margin:0 0 10px;
  letter-spacing:-.2px;
}
.cta-card p{
  margin:0;
  font-size:15px;
  color:rgba(255,255,255,.72);
  max-width:36em;
}

/* ---------- 参数表 ---------- */
.spec-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.spec-table{
  width:100%;
  border-collapse:collapse;
  margin:0;
}
.spec-table thead th{
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  text-align:left;
  padding:14px 24px;
  border-bottom:1px solid var(--line);
}
.spec-table tbody th,
.spec-table tbody td{
  padding:16px 24px;
  font-size:15px;
  line-height:1.75;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
  background:transparent;
}
.spec-table tbody th{
  width:34%;
  color:var(--muted);
  font-weight:500;
  white-space:nowrap;
}
.spec-table tbody td{color:var(--ink-900)}
.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover td,
.spec-table tbody tr:hover th{background:#FBFAF4;transition:background-color .2s var(--ease)}

/* ---------- 三步流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
}
.step{
  border-top:1px solid var(--line);
  padding-top:24px;
}
.step .num{
  display:block;
  font-family:var(--serif);
  font-size:42px;
  line-height:1;
  color:var(--brand-500);
  opacity:.4;
  margin-bottom:16px;
}
.step h3{
  font-size:19px;
  margin:0 0 10px;
  letter-spacing:-.2px;
}
.step p{
  margin:0;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}

/* ---------- 注意事项卡 ---------- */
.note-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.note-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:28px 26px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.note-card:hover{
  box-shadow:var(--shadow-2);
  transform:translateY(-2px);
  border-color:#D2CBBA;
}
.note-card .card-tag{
  display:inline-block;
  padding:4px 12px;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12px;
  font-weight:600;
  margin-bottom:16px;
}
.note-card h3{
  font-size:18px;
  margin:0 0 10px;
  letter-spacing:-.2px;
}
.note-card p{
  margin:0;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.85;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-700);
  color:rgba(255,255,255,.78);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  font-family:var(--serif);
  font-size:22px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:-.2px;
}
.footer-about{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.7);
  margin:0 0 18px;
  max-width:26em;
}
.badge-group{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.kw-badge{
  padding:4px 11px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.86);
  font-size:12px;
  letter-spacing:.02em;
}
.footer-col h4{
  font-family:var(--sans);
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin:0 0 16px;
  letter-spacing:.04em;
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
}
.footer-list a{color:rgba(255,255,255,.72)}
.footer-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:9px;
  font-size:13.5px;
  color:rgba(255,255,255,.7);
  line-height:1.7;
}
.footer-bottom{
  margin-top:46px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.disclaimer{max-width:60em}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.reveal.is-in{
  opacity:1;
  transform:none;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:46px}
  .hero-grid{gap:40px}
  .faq-grid{gap:0 40px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:span 3}
  .footer-contact{flex-direction:row;flex-wrap:wrap;gap:10px 28px}
}
@media (max-width:991.98px){
  .brand-row{height:64px}
  .channel-row{gap:24px}
  .page-hero{padding:56px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure{aspect-ratio:16/10;max-height:380px}
  .page-hero h1{font-size:40px}
  .section{padding:72px 0}
  .section-head h2{font-size:29px}
  .faq-grid{grid-template-columns:1fr;gap:0}
  .faq-grid .faq:last-child .accordion-item:first-child{border-top:0}
  .steps{grid-template-columns:1fr;gap:0}
  .step{padding:26px 0;border-top:1px solid var(--line)}
  .step:first-child{border-top:1px solid var(--line)}
  .note-grid{grid-template-columns:1fr;gap:16px}
  .cta-card{padding:36px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:span 2}
  .footer-contact{flex-direction:column}
}
@media (max-width:767.98px){
  .brand-row{height:60px;gap:10px}
  .brand{font-size:18px}
  .top-link{display:none}
  .btn-ghost-cta{height:36px;padding:0 14px;font-size:13px}
  .icon-btn{width:34px;height:34px}
  .channel-wrap::after{
    content:"";
    position:absolute;
    right:0;
    top:0;
    bottom:0;
    width:40px;
    pointer-events:none;
    background:linear-gradient(90deg, rgba(255,255,255,0), #fff 85%);
  }
  .page-hero{padding:44px 0 44px}
  .page-hero h1{font-size:34px;line-height:1.2}
  .hero-lead{font-size:15.5px}
  .hero-figure{aspect-ratio:4/3;max-height:320px}
  .meta-line{font-size:12.5px;gap:10px}
  .meta-line span + span{padding-left:10px}
  .section{padding:56px 0}
  .section-head h2{font-size:25px}
  .section-head p{font-size:14.5px}
  .spec-table thead th{padding:12px 16px}
  .spec-table tbody th,
  .spec-table tbody td{padding:13px 16px;font-size:14px}
  .spec-table tbody th{width:38%;white-space:normal}
  .cta-card{padding:30px 22px;gap:22px}
  .cta-card h2{font-size:22px}
  .btn-primary-x,.btn-secondary-x{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col:last-child{grid-column:span 1}
  .site-footer{padding:48px 0 24px}
  .footer-bottom{flex-direction:column;gap:10px;margin-top:32px}
}
@media (max-width:519.98px){
  .page-hero h1{font-size:29px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .faq .accordion-button{font-size:15px;padding:16px 4px 16px 14px}
  .faq .accordion-body{padding:0 16px 20px 14px;font-size:14.5px}
  .step .num{font-size:34px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}