/* roulang page: index */
:root{
  --paper:#F7F4EC;
  --paper-2:#F1ECE1;
  --card:#FFFDF8;
  --ink:#2A2622;
  --ink-2:#6B6259;
  --ink-3:#9A9086;
  --line:#DED5C6;
  --line-2:#C9BEA9;
  --brand:#B4552D;
  --brand-dark:#8C3F1F;
  --brand-soft:#F6E4DA;
  --green:#2E4A40;
  --green-soft:#E3EAE4;
  --gold:#D9A03C;
  --gold-soft:#F7EBD3;
  --radius-s:6px;
  --radius-m:12px;
  --radius-l:18px;
  --radius-pill:999px;
  --shadow-1:4px 4px 0 rgba(42,38,34,.10);
  --shadow-2:7px 7px 0 rgba(42,38,34,.14);
  --shadow-sticky:0 4px 0 rgba(42,38,34,.06);

  --bs-primary:#B4552D;
  --bs-body-color:#2A2622;
  --bs-body-bg:#F7F4EC;
  --bs-border-color:#DED5C6;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --bs-link-color:#B4552D;
  --bs-link-hover-color:#8C3F1F;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{
  font-family:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"Microsoft YaHei",serif;
  color:var(--ink);
  margin:0 0 12px;
  letter-spacing:-0.01em;
}
p{margin:0 0 14px;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;height:auto;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-left:32px;padding-right:32px;}
@media (min-width:1400px){.container{max-width:1280px;}}
.section{padding:96px 0;}
.section-sm{padding:56px 0;}
.alt-bg{background:var(--paper-2);}
.section-head{margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-dark);text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:block;}
.section-title{font-size:clamp(24px,3vw,30px);line-height:1.35;font-weight:600;}
.section-sub{color:var(--ink-2);font-size:16px;max-width:640px;}
.muted{color:var(--ink-2);}
.tabular{font-variant-numeric:tabular-nums;}

/* 顶部活动条 */
.topbar{background:var(--green);color:#F1ECE1;font-size:13px;min-height:40px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.topbar-text{display:inline-flex;align-items:center;gap:8px;}
.topbar-text::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);display:block;}
.topbar-right{display:flex;align-items:center;gap:12px;}
.countdown{display:flex;align-items:center;gap:5px;}
.cd-cell{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  border-radius:4px;padding:2px 7px;font-variant-numeric:tabular-nums;font-weight:700;
  font-size:13px;color:#FFF8E9;
}
.cd-cell small{font-size:11px;opacity:.7;font-weight:400;margin-left:2px;}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  border:1px dashed rgba(255,255,255,.45);border-radius:var(--radius-pill);
  padding:2px 11px;font-size:12px;white-space:nowrap;
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--gold);display:block;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;}
.mainnav{background:var(--paper);border-bottom:2px solid var(--ink);padding:14px 0;transition:padding .2s ease-out,box-shadow .2s ease-out;}
.site-header.is-scrolled .mainnav{padding:8px 0;box-shadow:var(--shadow-sticky);}
.nav-inner{display:flex;align-items:center;gap:24px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:19px;flex:0 0 auto;}
.logo:hover{color:var(--brand-dark);}
.logo-mark{width:34px;height:34px;flex:0 0 auto;}
.logo-text{letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0 auto;}
.nav-links a{
  color:var(--ink);font-weight:600;font-size:15px;padding:4px 2px 5px;
  border-bottom:2px solid transparent;display:inline-block;
}
.nav-links a:hover{color:var(--brand-dark);border-bottom-color:var(--brand);}
.nav-links a.active{color:var(--brand-dark);border-bottom-color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.state-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--green);
  background:var(--green-soft);border:1px solid #C7D5C9;border-radius:var(--radius-pill);
  padding:3px 11px;white-space:nowrap;
}
.state-pill i{width:6px;height:6px;border-radius:50%;background:#12A594;display:block;}

/* 按钮 */
.btn-ink,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-s);
  font-weight:700;font-size:15px;line-height:1;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out;
}
.btn-ink{background:var(--brand);color:#FFF8F2;border:2px solid var(--ink);box-shadow:var(--shadow-1);}
.btn-ink:hover{background:var(--brand-dark);color:#fff;transform:translate(-1px,-1px);box-shadow:var(--shadow-2);}
.btn-ink:active{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(42,38,34,.18);}
.btn-ghost{background:transparent;color:var(--ink);border:2px solid var(--ink);box-shadow:var(--shadow-1);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translate(-1px,-1px);box-shadow:var(--shadow-2);}
.btn-ghost:active{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(42,38,34,.18);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand);border:2px solid var(--ink);color:#FFF8F2;border-radius:var(--radius-s);font-weight:700;height:48px;padding:0 22px;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;border-color:var(--ink);}
.btn-outline-primary{border:2px solid var(--ink);color:var(--ink);background:transparent;border-radius:var(--radius-s);font-weight:700;height:48px;padding:0 22px;}
.btn-outline-primary:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--ink);}
.link-arrow{font-weight:700;font-size:14.5px;display:inline-flex;align-items:center;gap:6px;border-bottom:2px solid transparent;transition:.18s ease-out;}
.link-arrow:hover{border-bottom-color:var(--brand);}
.link-arrow::after{content:"→";font-weight:400;}

/* 移动端抽屉 */
.nav-toggle{
  display:none;width:44px;height:44px;border:2px solid var(--ink);border-radius:var(--radius-s);
  background:var(--card);align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
  box-shadow:var(--shadow-1);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:330px;background:var(--card);
  border-left:2px solid var(--ink);transform:translateX(102%);transition:transform .24s ease-out;
  z-index:1050;display:flex;flex-direction:column;padding:22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(42,38,34,.42);opacity:0;visibility:hidden;
  transition:opacity .24s ease-out;z-index:1045;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer-close{
  align-self:flex-end;width:40px;height:40px;border:2px solid var(--ink);background:var(--paper);
  border-radius:var(--radius-s);font-size:18px;line-height:1;cursor:pointer;margin-bottom:18px;
}
.drawer-nav{list-style:none;display:flex;flex-direction:column;gap:2px;margin-bottom:auto;}
.drawer-nav a{
  display:block;padding:13px 4px;color:var(--ink);font-weight:600;font-size:16px;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand-dark);}
.drawer-nav a.active::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--brand);margin-right:9px;vertical-align:middle;}
.drawer-cta{margin-top:22px;display:grid;gap:10px;}

/* Hero */
.hero{position:relative;padding:76px 0 68px;background:var(--paper);overflow:hidden;}
.hero-bg{position:absolute;inset:0;opacity:.07;pointer-events:none;}
.hero-bg svg{width:100%;height:100%;}
.hero-inner{position:relative;z-index:2;}
.hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--brand-dark);border-bottom:4px solid var(--gold);padding-bottom:2px;}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line-2);padding-top:20px;}
.metric{padding-right:28px;margin-right:28px;border-right:1px solid var(--line-2);}
.metric:last-child{border-right:0;margin-right:0;padding-right:0;}
.metric b{display:block;font-size:24px;font-weight:800;color:var(--green);font-variant-numeric:tabular-nums;line-height:1.2;}
.metric span{font-size:13px;color:var(--ink-2);}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;border:2px solid var(--ink);border-radius:var(--radius-l);
  box-shadow:9px 9px 0 rgba(42,38,34,.14);aspect-ratio:4/3;object-fit:cover;
}
.hero-tag{
  position:absolute;left:-14px;bottom:22px;background:var(--card);border:2px solid var(--ink);
  border-radius:var(--radius-pill);padding:7px 16px;font-size:13px;font-weight:700;color:var(--green);
  box-shadow:var(--shadow-1);
}

/* 价值条 */
.value-strip{background:var(--card);border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.value-cell{padding:34px 26px;border-left:1px solid var(--line);}
.value-cell:first-child{border-left:0;}
.value-num{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.1em;font-variant-numeric:tabular-nums;}
.value-cell h3{font-size:17px;margin:10px 0 8px;font-weight:600;}
.value-cell p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.7;}

/* 功能分组 */
.sticky-col{position:sticky;top:110px;}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:24px 22px;transition:border-color .18s ease-out,background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.feature-card:hover{border-color:var(--brand);background:var(--brand-soft);transform:translate(-2px,-2px);box-shadow:var(--shadow-1);}
.feature-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.feature-icon{
  width:42px;height:42px;border:2px solid var(--ink);border-radius:var(--radius-s);
  display:flex;align-items:center;justify-content:center;background:var(--gold-soft);color:var(--brand-dark);
}
.feature-tag{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand-dark);
  background:var(--brand-soft);border:1px solid #E5C7B6;border-radius:var(--radius-pill);padding:2px 10px;
  font-variant-numeric:tabular-nums;
}
.feature-card h3{font-size:16.5px;margin-bottom:8px;font-weight:600;}
.feature-card p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.7;}

/* 场景 */
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;margin-bottom:64px;}
.scene-row:last-child{margin-bottom:0;}
.scene-row.reverse .scene-text{order:2;}
.scene-row.reverse .scene-figure{order:1;}
.scene-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border:2px solid var(--ink);
  border-radius:var(--radius-m);box-shadow:7px 7px 0 rgba(42,38,34,.12);
}
.scene-text h3{font-size:20px;margin-bottom:12px;font-weight:600;}
.scene-text p{color:var(--ink-2);font-size:15.5px;max-width:520px;}
.scene-list{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.scene-list li{
  font-size:13.5px;color:var(--green);background:var(--green-soft);border:1px solid #C7D5C9;
  border-radius:var(--radius-pill);padding:5px 14px;
}

/* 案例 */
.case-main{
  background:var(--card);border:2px solid var(--ink);border-radius:var(--radius-l);
  padding:32px 30px;box-shadow:var(--shadow-2);height:100%;
}
.case-type{font-size:13px;font-weight:700;color:var(--brand-dark);letter-spacing:.06em;}
.case-main h3{font-size:21px;margin:12px 0 12px;}
.case-main p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
.case-figure{font-size:34px;font-weight:800;color:var(--green);line-height:1.1;font-variant-numeric:tabular-nums;}
.case-figure span{display:block;font-size:13px;font-weight:400;color:var(--ink-2);margin-top:6px;}
.case-side{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:24px 22px;margin-bottom:22px;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.case-side:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);border-color:var(--brand);}
.case-side h4{font-size:16px;margin-bottom:8px;font-weight:600;}
.case-side p{font-size:14.5px;color:var(--ink-2);margin:0;}
.data-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:52px;
  border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);
}
.data-cell{padding:26px 20px;border-left:1px solid var(--line);text-align:left;}
.data-cell:first-child{border-left:0;}
.data-cell b{display:block;font-size:28px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.15;}
.data-cell span{font-size:13px;color:var(--ink-2);}

/* 价格 */
.plan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:start;}
.plan{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:28px 26px;position:relative;transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);}
.plan.featured{border:2px solid var(--brand);transform:translateY(-8px);box-shadow:var(--shadow-2);}
.plan.featured:hover{transform:translateY(-11px);}
.plan-badge{
  position:absolute;top:-13px;left:24px;background:var(--gold);color:#3B2A0C;font-size:12px;font-weight:800;
  border:2px solid var(--ink);border-radius:var(--radius-pill);padding:2px 12px;letter-spacing:.04em;
}
.plan h3{font-size:17px;margin-bottom:6px;font-weight:600;}
.plan-note{font-size:13.5px;color:var(--ink-2);margin-bottom:16px;}
.plan-price{font-size:40px;font-weight:800;color:var(--brand-dark);line-height:1.1;font-variant-numeric:tabular-nums;}
.plan-price small{font-size:14px;font-weight:400;color:var(--ink-2);margin-left:6px;}
.plan ul{list-style:none;margin:20px 0 22px;display:grid;gap:9px;}
.plan li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2);}
.plan li::before{
  content:"";position:absolute;left:4px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.plan-foot-note{font-size:12px;color:var(--ink-3);margin-top:14px;}
.compare-list{list-style:none;display:grid;gap:14px;}
.compare-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);
  padding-bottom:14px;border-bottom:1px dashed var(--line-2);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.compare-list svg{flex:0 0 auto;margin-top:4px;}

/* 最新信息 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.news-list{border-top:2px solid var(--ink);}
.news-item{
  display:flex;align-items:center;gap:22px;padding:20px 12px;border-bottom:1px solid var(--line);
  color:var(--ink);transition:background-color .18s ease-out;
}
.news-item:hover{background:var(--paper-2);color:var(--ink);}
.news-item:hover .news-title{color:var(--brand-dark);}
.news-idx{
  flex:0 0 auto;width:64px;height:64px;border:2px solid var(--ink);border-radius:var(--radius-s);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;
  background:var(--gold-soft);color:var(--brand-dark);font-variant-numeric:tabular-nums;
}
.news-body{flex:1 1 auto;min-width:0;}
.news-title{display:block;font-size:18px;font-weight:600;margin-bottom:6px;transition:color .18s ease-out;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.news-sum{display:block;font-size:14.5px;color:var(--ink-2);
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.news-meta{flex:0 0 auto;display:flex;align-items:center;gap:14px;}
.tag{
  font-size:12.5px;font-weight:700;color:var(--green);background:var(--green-soft);
  border:1px solid #C7D5C9;border-radius:var(--radius-pill);padding:3px 12px;white-space:nowrap;
}
.news-time{font-size:13px;color:var(--ink-3);white-space:nowrap;font-variant-numeric:tabular-nums;}
.news-empty{
  border:2px dashed var(--line-2);border-radius:var(--radius-m);padding:44px 24px;text-align:center;
  background:var(--card);
}
.news-empty svg{margin:0 auto 14px;}
.news-empty p{font-size:15px;color:var(--ink-2);margin-bottom:16px;}

/* FAQ */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  overflow:hidden;transition:border-color .18s ease-out;
}
.faq-item[open]{border-color:var(--brand);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 54px 18px 20px;position:relative;
  font-size:17px;font-weight:600;color:var(--ink);border-left:3px solid transparent;transition:.18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);line-height:1;transition:transform .2s ease-out;
}
.faq-item[open] summary{border-left-color:var(--brand);color:var(--brand-dark);}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(0deg);}
.faq-body{padding:0 22px 20px 23px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.faq-body p{margin:0;}
.faq-side h3{font-size:20px;margin-bottom:12px;}
.faq-side p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;}

/* CTA */
.cta-band{border-top:1px solid var(--line-2);background:var(--paper-2);padding:64px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px);margin:0;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:#2A2622;color:#CFC6B8;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{color:#F4EFE4;margin-bottom:16px;}
.footer-brand .logo:hover{color:#F4EFE4;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A79D8E;max-width:320px;}
.footer-badge{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;
  border:1px dashed rgba(207,198,184,.4);border-radius:var(--radius-pill);
  padding:3px 12px;font-size:12.5px;color:#CFC6B8;
}
.footer-badge i{width:6px;height:6px;border-radius:50%;background:#12A594;display:block;}
.site-footer h4{font-size:14px;color:#F4EFE4;margin-bottom:16px;letter-spacing:.06em;font-weight:700;}
.footer-list{list-style:none;display:grid;gap:10px;}
.footer-list a{color:#A79D8E;font-size:14.5px;}
.footer-list a:hover{color:#E8A277;}
.footer-contact{font-size:14.5px;color:#A79D8E;line-height:1.9;}
.footer-contact b{color:#F4EFE4;font-weight:600;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(207,198,184,.18);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:#8C8375;
}
.footer-bottom a{color:#8C8375;}
.footer-bottom a:hover{color:#E8A277;}
.to-top{
  background:none;border:1px solid rgba(207,198,184,.35);color:#CFC6B8;border-radius:var(--radius-pill);
  padding:5px 16px;font-size:13px;cursor:pointer;transition:.18s ease-out;
}
.to-top:hover{border-color:#E8A277;color:#E8A277;}

/* 响应式 */
@media (max-width:1199.98px){
  .container{padding-left:24px;padding-right:24px;}
  .value-grid{grid-template-columns:repeat(2,1fr);}
  .value-cell:nth-child(3){border-left:0;}
  .value-cell:nth-child(n+3){border-top:1px solid var(--line);}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-actions .state-pill{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .sticky-col{position:static;}
  .hero{padding:56px 0 52px;}
  .plan-grid{grid-template-columns:1fr;}
  .plan.featured{transform:none;order:-1;margin-bottom:14px;}
  .plan.featured:hover{transform:translateY(-3px);}
  .data-bar{grid-template-columns:repeat(2,1fr);}
  .data-cell:nth-child(3){border-left:0;}
  .data-cell:nth-child(n+3){border-top:1px solid var(--line);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .topbar{font-size:12.5px;}
  .countdown{display:none;}
  .hero{padding:44px 0 46px;}
  .hero-figure{margin-top:32px;}
  .hero-figure img{aspect-ratio:16/11;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn-ink,.hero-cta .btn-ghost{width:100%;}
  .hero-metrics{gap:18px;}
  .metric{border-right:0;padding-right:0;margin-right:0;flex:1 1 100%;}
  .value-grid{grid-template-columns:1fr;}
  .value-cell{border-left:0;border-top:1px solid var(--line);padding:24px 20px;}
  .value-cell:first-child{border-top:0;}
  .feature-grid{grid-template-columns:1fr;}
  .scene-row{grid-template-columns:1fr;gap:22px;margin-bottom:44px;}
  .scene-row.reverse .scene-text{order:1;}
  .scene-row.reverse .scene-figure{order:2;}
  .news-item{flex-wrap:wrap;gap:14px;padding:18px 6px;}
  .news-idx{width:52px;height:52px;font-size:17px;}
  .news-meta{width:100%;justify-content:flex-start;padding-left:66px;}
  .news-item:nth-child(n+4){display:none;}
  .data-bar{grid-template-columns:1fr;}
  .data-cell{border-left:0;border-top:1px solid var(--line);}
  .data-cell:first-child{border-top:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-ink,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .case-side{margin-bottom:0;margin-top:18px;}
}
@media (max-width:575.98px){
  .hero h1{font-size:30px;}
  .section-title{font-size:24px;}
  .news-meta{padding-left:0;}
  .plan{padding:24px 20px;}
}
@media (min-width:768px){
  .news-item:nth-child(n+6){display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --paper:#FBF7EE;
  --paper-2:#F4EEE1;
  --card:#FFFDF8;
  --ink:#2A2622;
  --ink-body:#332E29;
  --ink-2:#6B6259;
  --ink-3:#9A8F82;
  --line:#E3D9C6;
  --line-strong:#D5C7AE;
  --brand:#B4552D;
  --brand-dark:#96411F;
  --brand-soft:#F6E7DD;
  --green:#2E4A40;
  --green-soft:#E4EDE8;
  --gold:#D9A03C;
  --gold-soft:#FBF0D9;
  --radius-s:8px;
  --radius:12px;
  --radius-l:16px;
  --radius-xl:20px;
  --shadow-1:0 1px 2px rgba(42,38,34,.05),0 8px 20px rgba(42,38,34,.05);
  --shadow-2:0 10px 24px rgba(42,38,34,.10);
  --bs-body-color:#2A2622;
  --bs-body-bg:#FBF7EE;
  --bs-border-color:#E3D9C6;
  --bs-primary:#B4552D;
  --bs-link-color:#B4552D;
  --bs-link-hover-color:#96411F;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  background-image:radial-gradient(rgba(42,38,34,.028) 1px,transparent 1px);
  background-size:22px 22px;
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink)}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (max-width:991.98px){.container{padding-left:24px;padding-right:24px}}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}

/* ============ 顶部活动条 ============ */
.topbar{background:var(--green);color:#F4EFE4;font-size:13.5px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:42px;padding-top:5px;padding-bottom:5px}
.topbar-text{letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.countdown{display:flex;align-items:center;gap:6px}
.cd-cell{
  display:inline-flex;align-items:baseline;gap:2px;
  background:rgba(244,239,228,.10);
  border:1px solid rgba(244,239,228,.24);
  border-radius:var(--radius-s);
  padding:2px 9px;font-weight:600;font-size:13.5px;
  font-variant-numeric:tabular-nums;
}
.cd-cell small{font-size:11px;font-weight:400;opacity:.72}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(217,160,60,.18);
  border:1px solid rgba(217,160,60,.5);
  color:#F3D9A4;border-radius:999px;
  padding:4px 12px;font-size:12.5px;white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:#8FD1B0;box-shadow:0 0 0 3px rgba(143,209,176,.18)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030}
.mainnav{
  background:rgba(251,247,238,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.scrolled .mainnav{box-shadow:0 6px 18px rgba(42,38,34,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height .2s ease-out}
.site-header.scrolled .nav-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{width:38px;height:38px;flex:0 0 auto}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;padding:0}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:var(--radius-s);
  color:var(--ink-2);font-size:15px;font-weight:500;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;
  height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.state-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--green);
  background:var(--green-soft);border:1px solid #C9DCD2;
  border-radius:999px;padding:5px 12px;white-space:nowrap;
}
.state-pill i{width:7px;height:7px;border-radius:50%;background:#2E9E77;animation:pulse 2.2s infinite}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(46,158,119,.35)}
  50%{box-shadow:0 0 0 5px rgba(46,158,119,0)}
}
.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  background:var(--brand);color:#FFF7EC;
  border:1px solid var(--brand-dark);
  border-radius:10px;font-size:15px;font-weight:600;
  box-shadow:0 2px 0 var(--brand-dark);
  transition:background .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.btn-ink:hover{background:var(--brand-dark);color:#FFF7EC;transform:translateY(-1px);box-shadow:0 3px 0 #7A3317}
.btn-ink:active{transform:translateY(0);box-shadow:0 1px 0 #7A3317}
.btn-ink.btn-sm{height:38px;padding:0 16px;font-size:14px;box-shadow:0 2px 0 var(--brand-dark)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  background:transparent;color:var(--green);
  border:1px solid var(--line-strong);
  border-radius:10px;font-size:15px;font-weight:600;
  transition:background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-ghost:hover{background:var(--green-soft);border-color:#B9CFC4;color:var(--green)}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:44px;height:40px;padding:0;
  background:#FFFDF8;border:1px solid var(--line-strong);border-radius:10px;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 抽屉 */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(42,38,34,.42);
  opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s ease-out;z-index:1040;
}
.drawer-backdrop.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:var(--card);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .24s ease-out;
  z-index:1050;padding:22px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
.drawer-close{background:none;border:0;font-size:22px;line-height:1;color:var(--ink-2);cursor:pointer;padding:4px 6px}
.drawer nav a{
  display:block;padding:13px 12px;border-radius:10px;
  color:var(--ink-2);font-size:15.5px;border-bottom:1px solid var(--line);
}
.drawer nav a:hover,.drawer nav a.active{background:var(--brand-soft);color:var(--brand);border-radius:10px}
.drawer-foot{margin-top:auto;padding-top:18px;display:flex;flex-direction:column;gap:10px}

/* ============ 面包屑 ============ */
.breadcrumb-bar{padding:26px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;margin:0;background:none;font-size:14px}
.breadcrumb li{display:inline-flex;align-items:center;color:var(--ink-2)}
.breadcrumb li+li::before{content:"/";color:var(--line-strong);margin-right:8px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--brand);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:48px;align-items:start;padding:26px 0 64px;
}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:32px}
.cat-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand-dark);
  border:1px solid #EBD3C4;border-radius:999px;
  padding:5px 13px;font-size:13px;font-weight:600;
}
.article-head h1{
  font-family:"Songti SC","Noto Serif SC","PingFang SC",Georgia,serif;
  font-size:clamp(27px,3.4vw,38px);
  line-height:1.32;font-weight:700;margin:16px 0 16px;letter-spacing:-.01em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--ink-2)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--brand);font-size:12.5px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);display:inline-block}

/* 正文排版 */
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-body)}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:22px;line-height:1.5;font-weight:700;
  margin:44px 0 16px;padding-left:14px;scroll-margin-top:110px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.26em;width:4px;
  border-radius:3px;background:var(--brand);
}
.article-body h3{font-size:18.5px;line-height:1.6;font-weight:600;margin:32px 0 12px;scroll-margin-top:110px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em}
.article-body li{margin-bottom:.5em;line-height:1.8}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body img{
  max-width:100%;height:auto;margin:26px auto 10px;
  border-radius:var(--radius-l);border:1px solid var(--line);
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--paper-2);border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;color:#4A423A;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-dark)}
.article-body strong{color:var(--ink)}
.article-body code{
  background:#F1E9DA;border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:.92em;color:var(--brand-dark);
}
.article-body pre{
  background:#F6F1E6;border:1px dashed var(--line-strong);
  border-radius:var(--radius);padding:18px;overflow-x:auto;margin:0 0 1.4em;
}
.article-body pre code{background:none;border:0;padding:0;color:var(--ink)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--paper-2);font-weight:600}
.article-body hr{border:0;border-top:1px dashed var(--line-strong);margin:36px 0}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:10px;font-size:13.5px;color:var(--ink-3);text-align:center}

/* 空态 */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-l);
  background:var(--card);padding:44px 28px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:20px;
}
.empty-state h2{font-size:21px;margin-bottom:10px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-l);padding:20px;box-shadow:var(--shadow-1);
}
.toc-card summary{
  display:flex;align-items:center;justify-content:space-between;
  cursor:pointer;list-style:none;font-size:15px;font-weight:700;color:var(--ink);
  letter-spacing:.01em;
}
.toc-card summary::-webkit-details-marker{display:none}
.toc-card summary::after{content:"+";color:var(--brand);font-size:19px;line-height:1;font-weight:600}
.toc-card[open] summary::after{content:"−"}
.toc-list{list-style:none;padding:0;margin:14px 0 0;max-height:330px;overflow:auto}
.toc-list a{
  display:block;padding:7px 10px;
  border-left:2px solid var(--line);
  color:var(--ink-2);font-size:14.5px;line-height:1.55;
  transition:color .18s ease-out,background .18s ease-out,border-color .18s ease-out;
}
.toc-list a:hover{color:var(--brand);background:var(--paper-2);border-left-color:var(--brand)}
.consult-card{background:var(--brand-soft);border:1px solid #E4C6B3}
.side-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.06em;
  color:var(--brand-dark);background:#FFF7EC;border:1px solid #E4C6B3;
  border-radius:999px;padding:3px 10px;margin-bottom:12px;
}
.consult-card h3{font-size:16.5px;line-height:1.5;margin-bottom:10px}
.consult-card p{font-size:14.5px;color:#6A4B39;line-height:1.8;margin-bottom:16px}
.side-note{font-size:13px;color:var(--ink-3);margin-top:10px;text-align:center}

/* ============ 相关推荐 ============ */
.related{padding:64px 0 56px;background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-size:clamp(21px,2.4vw,26px);font-weight:700;line-height:1.4}
.section-head p{font-size:14.5px;color:var(--ink-2);margin-top:8px}
.section-head .head-link{font-size:14.5px;font-weight:600;color:var(--brand);white-space:nowrap}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-l);
  overflow:hidden;color:inherit;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong);color:inherit}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:var(--paper-2)}
.rec-thumb img{width:100%;height:100%;object-fit:cover}
.rec-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px}
.rec-tag{
  align-self:flex-start;font-size:12px;font-weight:600;
  color:var(--green);background:var(--green-soft);
  border:1px solid #C9DCD2;border-radius:999px;padding:3px 10px;
}
.rec-body h3{font-size:16.5px;line-height:1.5;font-weight:600}
.rec-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.rec-more{font-size:14px;font-weight:600;color:var(--brand);margin-top:2px}

/* ============ 前后篇 ============ */
.postnav{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;margin:36px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  flex-wrap:wrap;
}
.postnav-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;color:var(--ink-2);max-width:46%;
}
.postnav-link:hover{color:var(--brand)}
.postnav-link strong{color:var(--ink);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 收尾 CTA ============ */
.cta-band{padding:56px 0;background:var(--card);border-bottom:1px solid var(--line)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.3vw,25px);font-weight:700;line-height:1.45;margin-bottom:8px}
.cta-inner p{font-size:14.5px;color:var(--ink-2)}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-textlink{font-size:15px;font-weight:600}

/* ============ 页脚 ============ */
.site-footer{background:#26221E;color:#C9BFB1;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:42px}
.footer-brand .logo{color:#F4EFE4}
.footer-brand .logo:hover{color:#F4EFE4}
.footer-brand .logo-text{color:#F4EFE4}
.footer-brand p{font-size:14.5px;line-height:1.85;color:#A99F92;margin:16px 0 18px;max-width:320px}
.footer-badge{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;
  color:#BFD8CB;background:rgba(143,179,163,.14);
  border:1px solid rgba(143,179,163,.35);border-radius:999px;padding:5px 12px;
}
.footer-badge i{width:7px;height:7px;border-radius:50%;background:#8FD1B0}
.site-footer h4{font-size:15px;color:#F4EFE4;font-weight:600;margin-bottom:16px}
.footer-list{list-style:none;padding:0}
.footer-list li{margin-bottom:10px}
.footer-list a{color:#A99F92;font-size:14.5px}
.footer-list a:hover{color:#E8A277}
.footer-contact p{margin:0 0 10px;font-size:14px;color:#A99F92;line-height:1.75}
.footer-contact b{color:#DCD3C6;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(244,239,228,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:13.5px;color:#8E857A;flex-wrap:wrap;
}
.to-top{
  background:none;border:0;color:#C9BFB1;font-size:13.5px;cursor:pointer;
  padding:4px 2px;text-decoration:underline;text-underline-offset:3px;
}
.to-top:hover{color:#E8A277}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{gap:36px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .state-pill{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;top:auto}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .article-body{max-width:100%}
}
@media (max-width:767.98px){
  .countdown{display:none}
  .topbar-text{font-size:13px}
  .related{padding:56px 0 48px}
  .postnav-link{max-width:100%}
}
@media (max-width:575.98px){
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .nav-inner{height:66px}
  .site-header.scrolled .nav-inner{height:60px}
  .logo-text{font-size:17.5px}
  .logo-mark{width:34px;height:34px}
  .btn-ink{height:44px;padding:0 18px;font-size:14.5px}
  .btn-ink.btn-sm{height:38px;font-size:13.5px;padding:0 14px}
  .nav-actions .btn-ink.btn-sm{display:none}
  .article-head h1{font-size:25px}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:20px;margin-top:36px}
  .article-body h3{font-size:17.5px}
  .cta-band{padding:44px 0}
  .breadcrumb .current{max-width:180px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --paper:#F7F2E8;
  --paper-2:#EFE6D6;
  --paper-3:#E7DCC7;
  --card:#FFFDF8;
  --ink:#2A2622;
  --ink-2:#4A423A;
  --muted:#7A7065;
  --line:#E0D5C2;
  --brick:#B4552D;
  --brick-dark:#8E3F1F;
  --gold:#D9A03C;
  --forest:#2E4A40;
  --teal:#12A594;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --shadow-1:0 2px 0 rgba(42,38,34,.05), 0 10px 24px rgba(42,38,34,.06);
  --shadow-2:0 3px 0 rgba(42,38,34,.08), 0 16px 34px rgba(42,38,34,.11);
  --shadow-nav:0 2px 12px rgba(42,38,34,.10);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brick);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brick-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brick);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container) !important;margin:0 auto;padding-left:32px;padding-right:32px}

/* ============ 顶部活动条 ============ */
.topbar{background:var(--ink);color:#F4EFE4;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;flex-wrap:wrap}
.topbar-text{color:rgba(244,239,228,.86);letter-spacing:.01em}
.topbar-right{display:flex;align-items:center;gap:12px}
.countdown{display:flex;gap:6px;align-items:center}
.cd-cell{
  background:rgba(244,239,228,.10);
  border:1px solid rgba(244,239,228,.22);
  border-radius:6px;
  padding:1px 8px;
  font-size:13px;
  font-variant-numeric:tabular-nums;
  color:#F7F2E8;
}
.cd-cell small{font-size:11px;opacity:.7;margin-left:2px}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(217,160,60,.16);
  border:1px solid rgba(217,160,60,.45);
  color:#F0D6A2;
  border-radius:999px;padding:2px 11px;font-size:12px;white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:#7FBF9B;display:block}

/* ============ 导航 ============ */
.site-header{position:relative;z-index:60}
.mainnav{
  position:sticky;top:0;z-index:60;
  background:rgba(247,242,232,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
  transition:box-shadow .2s ease-out;
}
.site-header.is-stuck .mainnav{box-shadow:var(--shadow-nav)}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;position:relative;
  transition:height .2s ease-out;
}
.site-header.is-stuck .nav-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:34px;height:34px;flex:none}
.logo-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.logo:hover .logo-text{color:var(--brick)}

.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;margin-right:auto}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:15px;color:var(--ink-2);border-radius:var(--r-sm);
}
.nav-links a:hover{color:var(--brick);background:var(--paper-2)}
.nav-links a.active{color:var(--brick);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brick);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.state-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--forest);
  background:rgba(46,74,64,.08);
  border:1px solid rgba(46,74,64,.24);
  border-radius:999px;padding:4px 11px;white-space:nowrap;
}
.state-pill i{width:7px;height:7px;border-radius:50%;background:var(--teal);display:block}

.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;
  background:var(--ink);border:2px solid var(--ink);color:#F7F2E8;
  font-size:15px;font-weight:600;line-height:1;
  transition:background .18s ease-out,border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.btn-ink:hover{background:var(--brick);border-color:var(--brick);color:#FFF7EF;transform:translateY(-1px)}
.btn-ink:active{transform:translateY(0)}
.btn-ink.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;
  background:transparent;border:2px solid var(--ink);color:var(--ink);
  font-size:15px;font-weight:600;line-height:1;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.btn-line:hover{background:var(--paper-2);color:var(--brick);border-color:var(--brick);transform:translateY(-1px)}
.btn-line:active{transform:translateY(0)}
.btn-gold{background:var(--gold);border-color:var(--gold);color:#2A2622}
.btn-gold:hover{background:#C98F2C;border-color:#C98F2C;color:#2A2622}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:2px solid var(--ink);background:transparent;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 内页窄版 Hero ============ */
.page-hero{
  position:relative;
  min-height:352px;
  display:flex;align-items:center;
  padding:72px 0 64px;
  background-color:var(--paper-2);
  background-image:
    linear-gradient(rgba(247,242,232,.93),rgba(247,242,232,.97)),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero .container{position:relative}
.hero-eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.06em;
  color:var(--brick);background:#FFFDF8;
  border:1px solid var(--line);border-radius:999px;
  padding:4px 13px;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(27px,3.4vw,41px);
  line-height:1.24;max-width:840px;
}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:660px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{
  font-size:13px;color:var(--forest);
  background:rgba(46,74,64,.07);
  border:1px solid rgba(46,74,64,.2);
  border-radius:999px;padding:5px 14px;
}
.crumb{
  position:absolute;right:32px;bottom:-34px;
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  background:#FFFDF8;border:1px solid var(--line);
  border-radius:999px;padding:6px 16px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brick)}
.crumb .sep{color:var(--paper-3)}
.crumb .now{color:var(--brick);font-weight:600}

/* ============ 通用板块 ============ */
.section{padding:92px 0}
.section--tint{background:var(--paper-2)}
.section--tight{padding-top:112px}
.sec-head{max-width:740px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;color:var(--brick);letter-spacing:.02em;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brick);border-radius:2px}
.sec-head h2{margin-top:14px;font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85}

/* ============ 引导段 ============ */
.intro-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.intro-text p{font-size:16.5px;color:var(--ink-2);line-height:1.9}
.intro-text p + p{margin-top:16px}
.intro-points{margin-top:26px;display:grid;gap:12px}
.intro-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.intro-points li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:9px;
  border-radius:2px;background:var(--gold);transform:rotate(45deg);
}
.intro-figure{
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;background:var(--paper-2);box-shadow:var(--shadow-1);
}
.intro-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ============ 主体：左索引 + 右卡片 ============ */
.svc-layout{display:grid;grid-template-columns:296px 1fr;gap:48px;align-items:start}
.svc-side{position:sticky;top:96px}
.svc-nav{
  background:var(--card);
  border:2px solid var(--ink);
  border-radius:var(--r-lg);
  padding:22px 20px;
  box-shadow:6px 6px 0 rgba(42,38,34,.07);
}
.svc-nav h3{font-size:15px;color:var(--ink);margin-bottom:6px}
.svc-nav .svc-nav-tip{font-size:12.5px;color:var(--muted);margin-bottom:14px;line-height:1.7}
.svc-nav a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--ink-2);
  transition:background .16s ease-out,color .16s ease-out;
}
.svc-nav a b{font-size:13px;color:var(--gold);font-variant-numeric:tabular-nums;flex:none}
.svc-nav a:hover{background:var(--paper-2);color:var(--brick)}
.svc-side-note{
  margin-top:20px;padding:18px;
  background:var(--paper-2);border:1px dashed var(--line);border-radius:var(--r-md);
}
.svc-side-note p{font-size:13.5px;color:var(--muted);line-height:1.8}
.svc-side-note a{font-size:13.5px;font-weight:600;display:inline-block;margin-top:10px}

.svc-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.svc-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  scroll-margin-top:110px;
}
.svc-card:hover{transform:translateY(-3px);border-color:var(--brick);box-shadow:var(--shadow-2)}
.svc-card .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:var(--paper-2);border:1px solid var(--line);
  color:var(--brick);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.svc-card h3{margin-top:16px;font-size:17.5px;line-height:1.5}
.svc-card p{margin-top:10px;font-size:14.8px;color:var(--muted);line-height:1.82}
.svc-card .link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--brick);
  border-bottom:1px solid rgba(180,85,45,.32);
  padding-bottom:2px;
}
.svc-card .link:hover{border-bottom-color:var(--brick-dark);color:var(--brick-dark)}
.svc-card .link::after{content:"›";font-size:16px;line-height:1}

/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);
}
.metric{padding:28px 24px;border-right:1px dashed var(--line)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:32px;font-weight:700;line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums}
.metric span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ============ 说明文本区 ============ */
.note{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:38px;box-shadow:var(--shadow-1)}
.note h2{font-size:22px;margin-bottom:18px}
.note p{color:var(--ink-2);font-size:15.5px;line-height:1.92}
.note p + p{margin-top:16px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start}
.faq-intro{position:sticky;top:96px}
.faq-intro h2{font-size:clamp(21px,2.4vw,27px)}
.faq-intro p{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85}
.faq-intro a{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14.5px;font-weight:600}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:var(--paper-3)}
.faq-item.open{border-color:var(--paper-3);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;background:none;border:0;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.55;
  transition:box-shadow .18s ease-out,color .18s ease-out;
}
.faq-item.open .faq-q{box-shadow:inset 3px 0 0 var(--brick);color:var(--brick)}
.faq-q .sign{position:relative;width:18px;height:18px;flex:none}
.faq-q .sign::before,
.faq-q .sign::after{content:"";position:absolute;background:var(--brick);border-radius:2px}
.faq-q .sign::before{left:0;top:8px;width:18px;height:2px}
.faq-q .sign::after{left:8px;top:0;width:2px;height:18px;transition:transform .2s ease-out}
.faq-item.open .faq-q .sign::after{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.88}

/* ============ 收尾 CTA ============ */
.cta-band{background:var(--ink);color:#F4EFE4;padding:66px 0;border-top:1px solid rgba(244,239,228,.12)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(20px,2.5vw,27px);color:#F7F2E8;max-width:520px}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(244,239,228,.72);max-width:560px;line-height:1.85}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-actions .text-link{color:#E8A277;font-size:14.5px;font-weight:600;border-bottom:1px solid rgba(232,162,119,.4);padding-bottom:2px}
.cta-actions .text-link:hover{color:#F7F2E8;border-bottom-color:#F7F2E8}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(244,239,228,.78);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:44px}
.site-footer .logo-text{color:#F7F2E8}
.site-footer .logo:hover .logo-text{color:#E8A277}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(244,239,228,.66);max-width:340px}
.footer-badge{
  display:inline-flex;align-items:center;gap:7px;margin-top:18px;
  font-size:12.5px;color:rgba(244,239,228,.86);
  border:1px solid rgba(244,239,228,.24);border-radius:999px;padding:5px 13px;
}
.footer-badge i{width:7px;height:7px;border-radius:50%;background:#8FB3A3;display:block}
.site-footer h4{font-size:15px;color:#F7F2E8;margin-bottom:18px;font-weight:600}
.footer-list li + li{margin-top:11px}
.footer-list a{font-size:14px;color:rgba(244,239,228,.72)}
.footer-list a:hover{color:#E8A277}
.footer-contact p{font-size:14px;line-height:1.95;color:rgba(244,239,228,.72)}
.footer-contact p + p{margin-top:6px}
.footer-contact b{color:#F7F2E8;font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid rgba(244,239,228,.14);
  padding:22px 0 26px;font-size:13px;color:rgba(244,239,228,.58);flex-wrap:wrap;
}
.to-top{
  background:none;border:1px solid rgba(244,239,228,.3);color:rgba(244,239,228,.82);
  border-radius:999px;padding:6px 16px;font-size:13px;
  transition:background .18s ease-out,color .18s ease-out;
}
.to-top:hover{background:rgba(244,239,228,.12);color:#FFF}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .intro-grid{gap:40px}
  .svc-layout{grid-template-columns:266px 1fr;gap:36px}
  .faq-wrap{grid-template-columns:280px 1fr;gap:36px}
}
@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px}
  .nav-links{
    display:none;
  }
  .nav-links.open{
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    position:absolute;top:100%;left:-24px;right:-24px;
    background:var(--card);border-bottom:1px solid var(--line);
    padding:14px 24px 18px;box-shadow:var(--shadow-nav);
    margin:0;
  }
  .nav-links.open a{padding:12px 10px;font-size:15.5px}
  .nav-links.open a.active::after{left:10px;right:auto;width:18px;bottom:8px}
  .nav-toggle{display:flex}
  .nav-actions .state-pill{display:none}
  .section{padding:72px 0}
  .section--tight{padding-top:92px}
  .page-hero{display:block;padding:56px 0 64px;min-height:0}
  .crumb{position:static;margin-top:26px;display:inline-flex}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .svc-layout{grid-template-columns:1fr;gap:32px}
  .svc-side{position:static}
  .svc-nav{box-shadow:4px 4px 0 rgba(42,38,34,.07)}
  .svc-nav ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric{border-right:0;border-bottom:1px dashed var(--line)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-last-child(-n+2){border-bottom:0}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-intro{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  .topbar-text{font-size:12.5px}
  .countdown{display:none}
  .section{padding:56px 0}
  .section--tight{padding-top:72px}
  .sec-head{margin-bottom:32px}
  .page-hero h1{font-size:clamp(24px,6.4vw,30px)}
  .hero-sub{font-size:15.5px}
  .svc-cards{grid-template-columns:1fr}
  .svc-nav ul{grid-template-columns:1fr}
  .note{padding:26px 20px}
  .cta-band{padding:52px 0}
  .btn-ink,.btn-line{height:46px;padding:0 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px dashed var(--line)}
  .metric:last-child{border-bottom:0}
  .metric:nth-last-child(-n+2){border-bottom:1px dashed var(--line)}
  .metric:last-child{border-bottom:0}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px;font-size:14.5px}
  .svc-card{padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --paper:#F7F2E8;
  --paper-2:#EFE7D8;
  --card:#FFFDF8;
  --ink:#2A2622;
  --ink-2:#4A443C;
  --muted:#7C7367;
  --line:#DED4C2;
  --line-soft:#E9E1D1;
  --brick:#B4552D;
  --brick-d:#96441F;
  --ochre:#D9A03C;
  --ochre-soft:#F4E4C6;
  --forest:#2E4A40;
  --sage:#8FB3A3;
  --sage-soft:#E4EDE7;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:22px;
  --shadow-1:0 1px 2px rgba(42,38,34,.05), 0 10px 26px rgba(42,38,34,.06);
  --shadow-2:0 10px 20px rgba(42,38,34,.07), 0 22px 44px rgba(42,38,34,.09);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#B4552D;
  --bs-body-color:#2A2622;
  --bs-body-bg:#F7F2E8;
  --bs-border-color:#DED4C2;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brick);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brick-d);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brick);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (max-width:991px){.container{padding:0 24px;}}
@media (max-width:575px){.container{padding:0 16px;}}

/* ---------- 顶部活动条 ---------- */
.topbar{background:var(--forest);color:#EFEDE4;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:42px;gap:16px;}
.topbar-text{letter-spacing:.02em;opacity:.94;}
.topbar-right{display:flex;align-items:center;gap:14px;}
.countdown{display:flex;align-items:center;gap:6px;}
.cd-cell{
  display:inline-flex;align-items:baseline;gap:2px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.16);
  border-radius:8px;padding:3px 8px;
  font-weight:700;font-size:14px;color:#fff;
}
.cd-cell small{font-size:10px;font-weight:400;opacity:.75;}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(217,160,60,.18);
  border:1px solid rgba(217,160,60,.42);
  color:#F2D9A8;border-radius:999px;
  padding:3px 12px;font-size:12px;white-space:nowrap;
}
.status-badge i,.state-pill i,.footer-badge i{
  width:6px;height:6px;border-radius:50%;background:var(--ochre);display:inline-block;
}
@media (max-width:767px){
  .countdown{display:none;}
  .topbar-inner{min-height:38px;}
  .topbar-text{font-size:12px;}
}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;}
.mainnav{
  background:rgba(247,242,232,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:padding .22s var(--ease), box-shadow .22s var(--ease);
}
.site-header.is-stuck .mainnav{
  box-shadow:0 2px 14px rgba(42,38,34,.09);
  background:rgba(247,242,232,.98);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;transition:min-height .22s var(--ease);}
.site-header.is-stuck .nav-inner{min-height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{width:36px;height:36px;flex:0 0 36px;}
.logo-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:inline-block;padding:8px 14px;border-radius:999px;
  color:var(--ink-2);font-size:15px;position:relative;
}
.nav-links a:hover{background:var(--paper-2);color:var(--ink);}
.nav-links a.active{color:var(--brick);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brick);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.state-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--sage-soft);color:var(--forest);
  border:1px solid #CBDDD2;border-radius:999px;
  padding:5px 12px;font-size:12.5px;white-space:nowrap;
}
.state-pill i{background:var(--sage);}
.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;border-radius:10px;
  background:var(--brick);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--brick);
  transition:transform .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease);
}
.btn-ink:hover{background:var(--brick-d);border-color:var(--brick-d);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(180,85,45,.24);}
.btn-ink:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;border-radius:10px;
  background:transparent;color:var(--ink);font-size:15px;font-weight:600;
  border:1px solid var(--ink-2);
  transition:background .18s var(--ease), transform .18s var(--ease), color .18s var(--ease);
}
.btn-ghost:hover{background:var(--paper-2);color:var(--ink);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:10px;background:var(--card);padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  display:none;background:var(--card);border-bottom:1px solid var(--line);
  padding:12px 0 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer ul{display:flex;flex-direction:column;}
.mobile-drawer a{
  display:block;padding:14px 4px;border-bottom:1px dashed var(--line);
  color:var(--ink-2);font-size:16px;
}
.mobile-drawer a.active{color:var(--brick);font-weight:700;}
.mobile-drawer .drawer-cta{margin-top:16px;display:flex;gap:10px;}
.mobile-drawer .drawer-cta .btn-ink{width:100%;}

@media (max-width:991px){
  .nav-links{display:none;}
  .state-pill{display:none;}
  .nav-actions .btn-ink{display:none;}
  .nav-toggle{display:flex;}
}

/* ---------- Hero（窄版） ---------- */
.page-hero{
  position:relative;
  padding:76px 0 64px;
  background-image:linear-gradient(rgba(247,242,232,.93),rgba(247,242,232,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:340px;height:340px;
  border:1px dashed rgba(46,74,64,.22);border-radius:50%;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:840px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ochre-soft);color:#8A5A12;
  border:1px solid #E7CFA1;border-radius:999px;
  padding:5px 14px;font-size:13px;margin-bottom:20px;
}
.hero-eyebrow i{font-size:12px;}
.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.26;font-weight:700;
}
.page-hero .hero-sub{
  margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:660px;
}
.hero-foot{
  margin-top:34px;display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;
}
.hero-meta{display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.breadcrumb-nav a{color:var(--muted);}
.breadcrumb-nav a:hover{color:var(--brick);}
.breadcrumb-nav .sep{color:var(--line);}
.breadcrumb-nav .current{color:var(--brick);font-weight:600;}
@media (max-width:767px){
  .page-hero{padding:52px 0 44px;}
  .hero-foot{flex-direction:column;align-items:flex-start;}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--paper-2);}
@media (max-width:991px){.section{padding:64px 0;}}
@media (max-width:575px){.section{padding:52px 0;}}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;color:var(--brick);font-weight:700;letter-spacing:.06em;margin-bottom:14px;
}
.section-head .kicker::before{content:"";width:26px;height:1px;background:var(--brick);display:inline-block;}
.section-head h2{font-size:clamp(23px,2.6vw,30px);line-height:1.36;}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.8;}
.intro-lead{
  font-size:16.5px;line-height:1.85;color:var(--ink-2);
  border-left:3px solid var(--ochre);
  padding:4px 0 4px 20px;max-width:860px;
}

/* ---------- 步骤时间轴 ---------- */
.timeline{position:relative;margin-top:8px;}
.tl-item{position:relative;padding-left:70px;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:23px;top:44px;bottom:-4px;width:0;
  border-left:2px dashed var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-num{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:14px;
  background:var(--card);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:var(--brick);
  box-shadow:var(--shadow-1);
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.tl-card:hover{transform:translateY(-3px);border-color:var(--brick);box-shadow:var(--shadow-2);}
.tl-card h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.tl-card p{color:var(--ink-2);font-size:15px;line-height:1.8;margin-bottom:12px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  background:var(--paper-2);border:1px solid var(--line-soft);
  color:var(--muted);border-radius:999px;
  padding:3px 11px;font-size:12.5px;
}
.tag.tag-brick{background:#F8E7DE;border-color:#EFD2C3;color:var(--brick-d);}
.tag.tag-sage{background:var(--sage-soft);border-color:#CBDDD2;color:var(--forest);}

/* ---------- 右侧要点卡 ---------- */
.aside-sticky{position:sticky;top:110px;}
.aside-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:26px 24px;box-shadow:var(--shadow-1);
}
.aside-card + .aside-card{margin-top:20px;}
.aside-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
.aside-card h3 i{color:var(--ochre);font-size:15px;}
.check-list li{
  display:flex;gap:11px;padding:10px 0;border-bottom:1px dashed var(--line-soft);
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list li i{color:var(--sage);margin-top:5px;font-size:13px;flex:0 0 auto;}
.aside-note{
  margin-top:18px;background:var(--paper-2);border-radius:var(--radius-s);
  padding:14px 16px;font-size:13.5px;color:var(--muted);line-height:1.7;
}
.aside-cta{margin-top:18px;width:100%;}
@media (max-width:991px){
  .aside-sticky{position:static;margin-top:40px;}
}

/* ---------- 场景对照卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-m);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--brick);box-shadow:var(--shadow-2);}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2);border-bottom:1px solid var(--line);}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.scene-card:hover .scene-thumb img{transform:scale(1.03);}
.scene-index{
  position:absolute;left:14px;top:14px;
  background:rgba(42,38,34,.82);color:#F4EFE4;
  border-radius:8px;padding:4px 10px;font-size:12.5px;letter-spacing:.04em;
}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.scene-body h3{font-size:17.5px;margin-bottom:10px;line-height:1.5;}
.scene-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;flex:1;}
.scene-link{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--brick);
}
.scene-link i{transition:transform .2s var(--ease);font-size:12px;}
.scene-card:hover .scene-link i{transform:translateX(4px);}
@media (max-width:991px){.scene-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media (max-width:700px){.scene-grid{grid-template-columns:1fr;}}

/* ---------- 说明文本区 ---------- */
.notes-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:40px;box-shadow:var(--shadow-1);
}
.notes-wrap h2{font-size:22px;margin-bottom:20px;}
.notes-wrap h3{font-size:17px;margin:24px 0 10px;}
.notes-wrap p{font-size:15px;line-height:1.9;color:var(--ink-2);margin-bottom:14px;}
.notes-wrap p:last-child{margin-bottom:0;}
@media (max-width:767px){.notes-wrap{padding:26px 20px;}}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;}
.faq-side h2{font-size:clamp(23px,2.4vw,28px);line-height:1.36;}
.faq-side p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.8;}
.faq-side .faq-contact{
  margin-top:22px;display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--brick);
}
.accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--line);
}
.accordion-button{
  background:transparent;box-shadow:none;padding:20px 44px 20px 0;
  font-size:16.5px;font-weight:600;color:var(--ink);border-radius:0;position:relative;
}
.accordion-button:not(.collapsed){color:var(--brick);background:transparent;box-shadow:none;}
.accordion-button::after{
  display:none;
}
.acc-icon{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:13px;transition:all .2s var(--ease);
  background:var(--card);
}
.accordion-button:not(.collapsed) .acc-icon{
  background:var(--brick);border-color:var(--brick);color:#fff;
}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button:focus-visible{outline:2px solid var(--brick);outline-offset:2px;}
.accordion-body{
  padding:0 40px 22px 0;font-size:14.8px;line-height:1.85;color:var(--ink-2);
}
@media (max-width:991px){
  .faq-layout{grid-template-columns:1fr;gap:28px;}
}

/* ---------- CTA ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--paper);
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(21px,2.4vw,26px);line-height:1.4;}
.cta-inner p{margin-top:10px;color:var(--muted);font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:15px;font-weight:600;color:var(--brick);
  border-bottom:1px solid rgba(180,85,45,.35);padding-bottom:2px;
}
.text-link:hover{border-bottom-color:var(--brick);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--forest);color:#CFD8D2;padding:70px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:44px;}
.site-footer .logo-text{color:#F4EFE4;}
.site-footer h4{font-size:15px;color:#F4EFE4;margin-bottom:18px;letter-spacing:.03em;}
.footer-brand p{font-size:14px;line-height:1.85;color:#B9C6BE;margin:18px 0 0;max-width:340px;}
.footer-badge{
  display:inline-flex;align-items:center;gap:7px;margin-top:18px;
  background:rgba(143,179,163,.14);border:1px solid rgba(143,179,163,.34);
  color:#C7DAD0;border-radius:999px;padding:5px 13px;font-size:12.5px;
}
.footer-badge i{background:var(--sage);}
.footer-list li{margin-bottom:11px;}
.footer-list a{color:#B9C6BE;font-size:14.5px;}
.footer-list a:hover{color:#F4EFE4;}
.footer-contact p{font-size:14px;color:#B9C6BE;margin-bottom:10px;line-height:1.8;}
.footer-contact b{color:#E3EAE5;font-weight:600;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(244,239,228,.14);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:#9FB0A6;
}
.to-top{
  background:transparent;border:1px solid rgba(244,239,228,.26);color:#D8E1DA;
  border-radius:8px;padding:7px 16px;font-size:13.5px;
  transition:background .18s var(--ease), color .18s var(--ease);
}
.to-top:hover{background:rgba(244,239,228,.1);color:#F4EFE4;}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .site-footer{padding:52px 0 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --ink:#2A2622;
  --ink-2:#4A4239;
  --muted:#6B6155;
  --muted-2:#8A7F6E;
  --paper:#FBF7EE;
  --paper-2:#F2EBDD;
  --paper-3:#EDE4D2;
  --line:#D8CDB8;
  --line-2:#C4B79C;
  --rust:#B4552D;
  --rust-d:#96411F;
  --gold:#D9A03C;
  --pine:#2E4A40;
  --pine-l:#E4EBE6;
  --white:#FFFFFF;
  --r-sm:6px;
  --r:10px;
  --r-lg:16px;
  --sh-1:3px 3px 0 rgba(42,38,34,.10);
  --sh-2:6px 6px 0 rgba(42,38,34,.14);
  --f-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --f-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;

  --bs-body-font-family:var(--f-sans);
  --bs-body-color:var(--ink);
  --bs-body-bg:var(--paper);
  --bs-border-color:var(--line);
  --bs-link-color:var(--rust);
  --bs-link-hover-color:var(--rust-d);
  --bs-border-radius:var(--r);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--paper);
  background-image:radial-gradient(rgba(42,38,34,.035) 1px, transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--rust);text-decoration:none;transition:color .18s ease-out, background-color .18s ease-out, border-color .18s ease-out;}
a:hover{color:var(--rust-d);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{font-family:var(--f-serif);color:var(--ink);margin:0;font-weight:700;letter-spacing:.01em;}
p{margin:0 0 1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--rust);outline-offset:2px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;}

/* ---------- 顶部活动条 ---------- */
.topbar{background:var(--ink);color:#F2EBDD;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:42px;}
.topbar-text{letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:12px;}
.countdown{display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;}
.cd-cell{
  display:inline-flex;align-items:baseline;gap:2px;
  background:rgba(251,247,238,.10);
  border:1px solid rgba(251,247,238,.28);
  border-radius:var(--r-sm);
  padding:2px 8px;font-size:13px;color:#FBF7EE;
}
.cd-cell small{font-size:10px;color:#C9BFA8;}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--pine);color:#EAF2EC;
  border-radius:999px;padding:3px 12px;font-size:12px;
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:#8FB3A3;display:inline-block;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;}
.mainnav{
  background:rgba(251,247,238,.94);
  backdrop-filter:blur(6px);
  border-bottom:2px solid var(--ink);
  transition:box-shadow .2s ease-out, padding .2s ease-out;
}
.mainnav.shrink{box-shadow:0 4px 0 rgba(42,38,34,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;transition:height .2s ease-out;}
.mainnav.shrink .nav-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.logo:hover{color:var(--ink);}
.logo-mark{width:38px;height:38px;flex:0 0 auto;}
.logo-text{font-family:var(--f-serif);font-size:20px;font-weight:700;letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links li{position:relative;}
.nav-links a{
  display:inline-block;color:var(--ink-2);font-size:15px;
  padding:8px 14px;border-radius:var(--r-sm);
}
.nav-links a:hover{background:var(--paper-2);color:var(--ink);}
.nav-links a.active{color:var(--rust);font-weight:600;background:transparent;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:3px;
  background:var(--rust);border-radius:2px;
}
.nav-drawer-cta{display:none;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.state-pill{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line-2);background:var(--white);
  border-radius:999px;padding:4px 12px;font-size:12px;color:var(--pine);
}
.state-pill i{width:6px;height:6px;border-radius:50%;background:#12A594;display:inline-block;}

.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--ink);color:#F7F2E8;border:2px solid var(--ink);
  border-radius:var(--r-sm);padding:0 20px;height:44px;font-size:15px;font-weight:600;
  box-shadow:var(--sh-1);cursor:pointer;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out;
}
.btn-ink:hover{background:var(--rust);border-color:var(--rust);color:#fff;transform:translate(-2px,-2px);box-shadow:var(--sh-2);}
.btn-ink:active{transform:translate(0,0);box-shadow:var(--sh-1);}
.btn-ink.btn-sm{height:38px;padding:0 16px;font-size:14px;}

.btn-rust{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--rust);color:#fff;border:2px solid var(--rust);
  border-radius:var(--r-sm);padding:0 24px;height:48px;font-size:16px;font-weight:600;
  box-shadow:var(--sh-1);cursor:pointer;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out;
}
.btn-rust:hover{background:var(--rust-d);border-color:var(--rust-d);color:#fff;transform:translate(-2px,-2px);box-shadow:var(--sh-2);}
.btn-rust:active{transform:translate(0,0);box-shadow:var(--sh-1);}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--ink);border:2px solid var(--ink);
  border-radius:var(--r-sm);padding:0 24px;height:48px;font-size:16px;font-weight:600;
  transition:background-color .18s ease-out, color .18s ease-out, transform .18s ease-out;
}
.btn-ghost:hover{background:var(--ink);color:#F7F2E8;transform:translate(-1px,-1px);}

.nav-toggle{
  display:none;width:44px;height:44px;border:2px solid var(--ink);border-radius:var(--r-sm);
  background:var(--white);padding:0;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);margin:4px auto;transition:transform .2s ease-out, opacity .2s ease-out;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.bg-paper2{background:var(--paper-2);border-top:2px solid var(--line);border-bottom:2px solid var(--line);}
.bg-ink-deep{background:var(--ink);color:#EDE4D2;}
.bg-ink-deep h2, .bg-ink-deep h3{color:#FBF7EE;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--rust);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--rust);display:inline-block;}
.sec-title{font-size:clamp(24px,3vw,32px);line-height:1.35;margin-bottom:14px;}
.sec-desc{color:var(--muted);max-width:760px;font-size:16px;}

/* ---------- Hero ---------- */
.hero-cat{
  position:relative;overflow:hidden;
  background:var(--paper-2);
  border-bottom:2px solid var(--ink);
}
.hero-media{position:absolute;inset:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.18;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(251,247,238,.86) 0%, rgba(242,235,221,.94) 100%);
}
.hero-cat-inner{position:relative;padding:76px 0 56px;}
.hero-cat h1{
  font-size:clamp(28px,3.8vw,42px);line-height:1.3;margin-bottom:18px;max-width:830px;
}
.hero-cat .lead{font-size:18px;color:var(--ink-2);max-width:720px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--white);border:1px solid var(--line-2);border-radius:999px;
  padding:5px 14px;font-size:13px;color:var(--ink-2);
}
.tag i{color:var(--gold);}
.hero-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:2px dashed var(--line-2);padding-top:20px;
}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);flex-wrap:wrap;}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--rust);}
.breadcrumb-line .sep{color:var(--line-2);}
.breadcrumb-line .current{color:var(--rust);font-weight:600;}
.hero-meta{font-size:13px;color:var(--muted);}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:start;}
.intro-copy p{color:var(--ink-2);font-size:16px;}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:2px solid var(--ink);border-radius:var(--r);background:var(--white);overflow:hidden;box-shadow:var(--sh-1);}
.metric{padding:22px 18px;border-right:2px solid var(--ink);}
.metric:last-child{border-right:0;}
.metric b{display:block;font-family:var(--f-serif);font-size:30px;line-height:1.1;font-variant-numeric:tabular-nums;}
.metric span{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- 问答双栏 + 侧栏 ---------- */
.qa-layout{display:grid;grid-template-columns:2fr 1fr;gap:44px;align-items:start;}
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.qa-item{
  background:var(--white);border:2px solid var(--line-2);border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
}
.qa-item:hover{transform:translate(-2px,-2px);box-shadow:var(--sh-2);border-color:var(--rust);}
.qa-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:var(--r-sm);
  background:var(--paper-2);border:1px solid var(--line-2);
  font-family:var(--f-serif);font-size:15px;color:var(--rust);margin-bottom:12px;
}
.qa-item h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.qa-item p{font-size:14.5px;color:var(--muted);margin:0 0 12px;}
.qa-link{font-size:14px;font-weight:600;}
.qa-link i{font-size:12px;margin-left:4px;}

.side-card{
  position:sticky;top:104px;
  background:var(--ink);color:#EDE4D2;border-radius:var(--r-lg);
  padding:28px 24px;box-shadow:var(--sh-2);
}
.side-card h3{color:#FBF7EE;font-size:19px;margin-bottom:12px;}
.side-card p{font-size:14px;color:#C9BFA8;margin-bottom:14px;}
.side-card ul{margin-bottom:18px;}
.side-card li{
  font-size:14px;color:#DCD3C0;padding-left:18px;position:relative;margin-bottom:9px;
}
.side-card li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--gold);
}
.side-card .btn-rust{width:100%;height:46px;}
.side-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;
  border:1px solid rgba(251,247,238,.3);border-radius:999px;padding:4px 12px;color:#EAF2EC;margin-bottom:16px;
}
.side-badge i{width:6px;height:6px;border-radius:50%;background:#8FB3A3;}
.side-help{
  margin-top:20px;background:var(--white);border:2px dashed var(--line-2);border-radius:var(--r);
  padding:20px;font-size:14px;color:var(--muted);
}
.side-help b{color:var(--ink);display:block;margin-bottom:6px;font-family:var(--f-serif);font-size:16px;}

/* ---------- 分类快捷卡 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:34px;}
.topic-card{
  background:var(--white);border:2px solid var(--ink);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease-out, box-shadow .18s ease-out;
}
.topic-card:hover{transform:translate(-3px,-3px);box-shadow:var(--sh-2);}
.topic-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;border-bottom:2px solid var(--ink);}
.topic-thumb img{width:100%;height:100%;object-fit:cover;}
.topic-body{padding:20px 18px 22px;display:flex;flex-direction:column;flex:1;}
.topic-body h3{font-size:17px;margin-bottom:8px;}
.topic-body p{font-size:14px;color:var(--muted);margin-bottom:14px;flex:1;}
.topic-body .qa-link{margin-top:auto;}

/* ---------- 排查顺序 ---------- */
.steps-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:start;}
.step-list{position:relative;padding-left:34px;}
.step-list::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:repeating-linear-gradient(180deg, var(--line-2) 0 8px, transparent 8px 16px);
}
.step{position:relative;margin-bottom:28px;}
.step:last-child{margin-bottom:0;}
.step::before{
  content:"";position:absolute;left:-34px;top:6px;width:24px;height:24px;border-radius:50%;
  background:var(--white);border:2px solid var(--rust);
}
.step::after{
  content:"";position:absolute;left:-26px;top:14px;width:8px;height:8px;border-radius:50%;background:var(--rust);
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}
.aside-panel{
  background:var(--white);border:2px solid var(--ink);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--sh-1);
}
.aside-panel h3{font-size:18px;margin-bottom:14px;}
.aside-panel li{
  font-size:14.5px;color:var(--ink-2);padding:10px 0 10px 26px;position:relative;
  border-bottom:1px solid var(--line);
}
.aside-panel li:last-child{border-bottom:0;}
.aside-panel li i{position:absolute;left:0;top:13px;color:var(--pine);font-size:13px;}
.mini-note{
  margin-top:18px;background:var(--pine-l);border-left:4px solid var(--pine);
  padding:14px 16px;font-size:13.5px;color:var(--pine);border-radius:0 var(--r-sm) var(--r-sm) 0;
}

/* ---------- FAQ 手风琴 ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 1.9fr;gap:48px;align-items:start;}
.faq-intro{position:sticky;top:104px;}
.faq-intro p{font-size:15px;color:var(--muted);}
.accordion-item{
  background:var(--white);border:2px solid var(--line-2);border-radius:var(--r);
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:var(--white);color:var(--ink);font-family:var(--f-serif);
  font-size:17px;font-weight:600;padding:18px 22px;box-shadow:none;border:0;
  position:relative;
}
.accordion-button:not(.collapsed){background:var(--paper-2);color:var(--rust);box-shadow:none;}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--rust);
}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--rust);outline-offset:-2px;}
.accordion-button::after{
  background-image:none;content:"+";font-size:22px;line-height:1;color:var(--rust);
  transform:none;width:22px;height:22px;display:flex;align-items:center;justify-content:center;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.accordion-body{font-size:15px;color:var(--muted);line-height:1.85;padding:4px 22px 22px;}

/* ---------- SEO 文本 ---------- */
.seo-block{max-width:900px;}
.seo-block h2{font-size:24px;margin-bottom:16px;}
.seo-block p{font-size:15px;color:var(--ink-2);line-height:1.9;}
.seo-keywords{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:#EDE4D2;border-top:6px solid var(--rust);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:56px 0;
}
.cta-inner h2{color:#FBF7EE;font-size:clamp(22px,2.6vw,28px);margin-bottom:8px;}
.cta-inner p{color:#C9BFA8;margin:0;font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.cta-actions .text-link{color:#E8A277;font-weight:600;}
.cta-actions .text-link:hover{color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C9BFA8;padding:64px 0 28px;border-top:2px solid var(--ink);}
.site-footer .logo-text{color:#FBF7EE;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#B7AC97;margin:16px 0 16px;}
.footer-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;
  border:1px solid rgba(251,247,238,.26);border-radius:999px;padding:4px 12px;color:#DCD3C0;
}
.footer-badge i{width:6px;height:6px;border-radius:50%;background:#8FB3A3;}
.site-footer h4{font-size:16px;color:#FBF7EE;margin-bottom:18px;font-family:var(--f-serif);}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:#B7AC97;}
.footer-list a:hover{color:#E8A277;}
.footer-contact p{font-size:14px;color:#B7AC97;margin-bottom:10px;}
.footer-contact b{color:#DCD3C0;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(251,247,238,.16);padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9A8F7B;
}
.to-top{
  background:transparent;border:1px solid rgba(251,247,238,.3);color:#DCD3C0;
  border-radius:999px;padding:6px 16px;font-size:13px;cursor:pointer;
  transition:background-color .18s ease-out, color .18s ease-out;
}
.to-top:hover{background:#FBF7EE;color:var(--ink);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .metric b{font-size:26px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .nav-inner{height:68px;}
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    background:var(--paper);border-left:2px solid var(--ink);
    flex-direction:column;align-items:stretch;gap:0;
    padding:96px 22px 22px;
    transform:translateX(105%);transition:transform .24s ease-out;
    z-index:1045;overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-links li{border-bottom:1px solid var(--line);}
  .nav-links a{padding:16px 4px;font-size:16px;border-radius:0;display:block;}
  .nav-links a.active::after{left:4px;right:auto;width:34px;bottom:8px;}
  .nav-drawer-cta{display:block;border-bottom:0;margin-top:20px;}
  .nav-drawer-cta .btn-ink{width:100%;height:48px;}
  .nav-actions .state-pill{display:none;}
  .nav-actions .btn-ink.btn-sm{display:none;}
  body.nav-open::after{
    content:"";position:fixed;inset:0;background:rgba(42,38,34,.42);z-index:1040;
  }
  .intro-grid{grid-template-columns:1fr;gap:28px;}
  .qa-layout{grid-template-columns:1fr;gap:32px;}
  .qa-grid{grid-template-columns:1fr;}
  .side-card{position:static;}
  .steps-layout{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-intro{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-cat-inner{padding:56px 0 40px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .container{padding-left:16px;padding-right:16px;}
  .topbar-inner{height:auto;padding:8px 0;flex-wrap:wrap;}
  .countdown{display:none;}
  .hero-cat .lead{font-size:16px;}
  .metric-row{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:2px solid var(--ink);}
  .metric:last-child{border-bottom:0;}
  .topic-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-inner{padding:40px 0;}
  .cta-actions .btn-rust, .cta-actions .btn-ghost{width:100%;}
  .hero-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}