/* roulang page: index */
:root{
  --c-ink:#0B1210;
  --c-brand:#0C4A3E;
  --c-brand-deep:#092F27;
  --c-accent:#C8F135;
  --c-accent-2:#FF6A3D;
  --c-bg:#F5F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(11,18,16,.10);
  --c-muted:#6B7672;
  --c-footer-text:#E8EAE6;
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(11,18,16,.06);
  --sh-2:0 14px 36px -18px rgba(11,18,16,.28);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#0C4A3E;
  --bs-body-bg:#F5F4EF;
  --bs-body-color:#0B1210;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-border-radius:10px;
  --bs-link-color:#0B1210;
  --bs-link-hover-color:#0C4A3E;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-brand);}
button,input,select,textarea{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.15;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num,.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}
:focus-visible{outline:3px solid rgba(200,241,53,.75);outline-offset:2px;}
.container{width:100%;padding-left:20px;padding-right:20px;margin:0 auto;max-width:100%;}
@media (min-width:768px){.container{max-width:720px;}}
@media (min-width:992px){.container{max-width:960px;}}
@media (min-width:1200px){.container{max-width:1140px;}}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 顶部信息条 ---------- */
.site-topbar{
  background:var(--c-brand-deep);
  color:#CFD8D3;
  font-size:12.5px;
  height:38px;
  display:flex;
  align-items:center;
}
.site-topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex:none;}
.topbar-right{display:flex;align-items:center;gap:20px;}
.topbar-right a{color:#CFD8D3;}
.topbar-right a:hover{color:var(--c-accent);}
@media (max-width:991.98px){
  .site-topbar{height:34px;font-size:12px;}
  .topbar-right a.secondary{display:none;}
  .topbar-left span.topbar-text-long{display:none;}
}

/* ---------- 主导航 ---------- */
.site-nav{
  background:rgba(245,244,239,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-line);
  position:sticky;
  top:0;
  z-index:1030;
  transition:box-shadow .25s var(--ease);
}
.site-nav.is-stuck{box-shadow:0 8px 24px -18px rgba(11,18,16,.35);}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:19px;letter-spacing:-.01em;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--c-brand);
  color:var(--c-accent);
  display:grid;place-items:center;
  font-size:15px;font-weight:900;
  flex:none;
}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  font-weight:600;
  color:#33403C;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--c-brand);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--c-brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-brand);font-weight:800;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{display:flex;align-items:center;gap:12px;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  background:var(--c-brand);
  color:#fff !important;
  border:1px solid var(--c-brand);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-brand .arrow{transition:transform .22s var(--ease);}
.btn-brand:hover{background:var(--c-ink);border-color:var(--c-ink);color:#fff;box-shadow:var(--sh-2);}
.btn-brand:hover .arrow{transform:translateX(4px);}
.btn-brand.lg{height:52px;padding:0 28px;font-size:16px;}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  background:transparent;
  border:1px solid var(--c-brand);
  color:var(--c-brand) !important;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-outline-brand:hover{background:rgba(12,74,62,.08);color:var(--c-brand);}
.btn-outline-brand.on-dark{border-color:rgba(232,234,230,.45);color:#E8EAE6 !important;}
.btn-outline-brand.on-dark:hover{background:rgba(232,234,230,.10);color:#fff;}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  background:var(--c-accent);
  color:var(--c-ink) !important;
  border:1px solid var(--c-accent);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:800;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 14px 30px -16px rgba(200,241,53,.9);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--c-brand);
}
.btn-ghost .u{border-bottom:1px solid rgba(12,74,62,.35);padding-bottom:2px;transition:border-color .2s var(--ease);}
.btn-ghost:hover .u{border-color:var(--c-brand);}
.nav-burger{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  align-items:center;justify-content:center;
  gap:4px;flex-direction:column;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;}
@media (max-width:1199.98px){
  .nav-links a{padding:10px 10px;font-size:14px;}
  .nav-cta .btn-brand{padding:0 16px;font-size:14px;}
}
@media (max-width:991.98px){
  .nav-inner{height:60px;}
  .nav-links,.nav-cta{display:none;}
  .nav-burger{display:flex;}
  .brand{font-size:17px;}
  .brand-mark{width:30px;height:30px;font-size:13px;}
}
.offcanvas{background:var(--c-brand-deep);color:#E8EAE6;width:100% !important;}
.offcanvas-header{border-bottom:1px solid rgba(232,234,230,.14);padding:18px 20px;}
.offcanvas-title{font-size:17px;font-weight:800;color:#fff;}
.offcanvas-body{padding:24px 20px 120px;}
.oc-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;
  font-size:19px;font-weight:700;
  color:#E8EAE6;
  border-bottom:1px solid rgba(232,234,230,.12);
}
.oc-links a.active{color:var(--c-accent);}
.oc-foot{position:fixed;left:0;right:0;bottom:0;padding:16px 20px;background:var(--c-brand-deep);border-top:1px solid rgba(232,234,230,.14);}
.oc-foot .btn-accent{width:100%;}
.btn-close-custom{background:none;border:0;color:#E8EAE6;font-size:26px;line-height:1;width:40px;height:40px;}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;position:relative;}
.section.tight{padding:72px 0;}
.section-line{border-top:1px solid var(--c-line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--c-brand);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:block;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.15;}
.section-head p{margin-top:16px;color:var(--c-muted);font-size:16.5px;}
.section-head.with-side{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.ghost-num{
  position:absolute;top:56px;right:24px;
  font-size:clamp(60px,8vw,96px);
  font-weight:900;line-height:1;
  color:rgba(11,18,16,.055);
  letter-spacing:-.04em;
  pointer-events:none;
  font-variant-numeric:tabular-nums;
}
@media (max-width:991.98px){.section{padding:72px 0;} .section.tight{padding:56px 0;} .ghost-num{top:32px;right:16px;}}
@media (max-width:767.98px){.section{padding:56px 0;} .section-head{margin-bottom:32px;} .ghost-num{display:none;}}

/* ---------- 首屏 ---------- */
.hero{padding:72px 0 64px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(11,18,16,.06) 1px,transparent 1px),linear-gradient(to bottom,rgba(11,18,16,.06) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.hero h1{font-size:clamp(38px,6vw,72px);font-weight:900;line-height:1.06;letter-spacing:-.02em;}
.hero h1 .hl{color:var(--c-brand);}
.hero-sub{margin-top:20px;font-size:clamp(18px,2vw,22px);color:#3A4642;max-width:30ch;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{
  margin-top:48px;
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--c-line);
}
.hero-stat{padding:20px 28px 0 0;margin-right:28px;border-right:1px solid var(--c-line);}
.hero-stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-stat b{display:block;font-size:28px;font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-stat span{font-size:12.5px;color:var(--c-muted);display:block;margin-top:2px;}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:16/11;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,16,.18),rgba(11,18,16,.45));}
.hero-media-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(11,18,16,.72);
  color:#fff;font-size:12.5px;font-weight:600;
}
.hero-media-tag i{width:7px;height:7px;border-radius:50%;background:var(--c-accent);display:block;}
@media (max-width:991.98px){
  .hero{padding:48px 0 40px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{aspect-ratio:16/10;}
  .hero-sub{max-width:none;}
}
@media (max-width:575.98px){
  .hero h1{font-size:clamp(32px,9vw,44px);}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand{width:100%;}
  .hero-stat{padding-right:16px;margin-right:16px;}
  .hero-stat b{font-size:22px;}
}

/* ---------- 入口卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.entry-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
  height:100%;
  display:flex;flex-direction:column;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.entry-card:nth-child(2){transform:translateY(24px);}
.entry-card:nth-child(2):hover{transform:translateY(21px);}
.entry-media{aspect-ratio:16/10;overflow:hidden;position:relative;}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.entry-card:hover .entry-media img{transform:scale(1.04);}
.entry-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.entry-body h3{font-size:20px;font-weight:800;}
.entry-body p{color:var(--c-muted);font-size:15px;flex:1;}
.badge-soft{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  background:rgba(12,74,62,.09);
  color:var(--c-brand);
  font-size:12px;font-weight:700;
}
.badge-accent{background:var(--c-accent);color:var(--c-ink);}
.badge-dark{background:var(--c-ink);color:#fff;}
.badge-warn{background:rgba(255,106,61,.14);color:#C64317;}
@media (max-width:991.98px){
  .entry-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .entry-card:nth-child(2){transform:none;}
  .entry-card:nth-child(2):hover{transform:translateY(-3px);}
  .entry-grid .entry-card:nth-child(3){grid-column:span 2;}
}
@media (max-width:767.98px){
  .entry-grid{grid-template-columns:1fr;}
  .entry-grid .entry-card:nth-child(3){grid-column:span 1;}
}

/* ---------- 通道对比 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:32px 28px;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.plan.featured{
  background:var(--c-brand);
  border-color:var(--c-brand);
  color:#EEF3F0;
  padding-top:48px;padding-bottom:48px;
  box-shadow:var(--sh-2);
}
.plan.featured:hover{transform:none;box-shadow:var(--sh-2);}
.plan.featured .plan-name,.plan.featured .plan-price{color:#fff;}
.plan.featured li{color:#DCE6E1;}
.plan.featured li svg{color:var(--c-accent);}
.plan-name{font-size:17px;font-weight:800;letter-spacing:.01em;}
.plan-sub{font-size:13px;color:var(--c-muted);margin-top:6px;}
.plan.featured .plan-sub{color:rgba(238,243,240,.72);}
.plan-price{margin-top:22px;font-size:44px;font-weight:900;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1;}
.plan-price small{font-size:14px;font-weight:600;color:var(--c-muted);margin-left:6px;letter-spacing:0;}
.plan.featured .plan-price small{color:rgba(238,243,240,.7);}
.plan ul{margin-top:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.plan li{display:flex;gap:10px;font-size:14.5px;color:#3A4642;line-height:1.6;}
.plan li svg{flex:none;margin-top:5px;color:var(--c-brand);}
.plan .btn-brand,.plan .btn-outline-brand{margin-top:28px;width:100%;}
.plan.featured .btn-accent{width:100%;margin-top:28px;}
.compare-wrap{margin-top:56px;overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);}
table.compare{width:100%;border-collapse:collapse;min-width:720px;}
table.compare thead th{
  background:var(--c-ink);color:#E8EAE6;
  font-size:13.5px;font-weight:700;text-align:left;
  padding:16px 20px;
}
table.compare td{padding:0 20px;height:52px;font-size:14.5px;border-bottom:1px solid var(--c-line);color:#33403C;vertical-align:middle;}
table.compare tbody tr:nth-child(even){background:rgba(11,18,16,.022);}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{font-weight:700;color:var(--c-ink);}
.plan-stack{display:none;margin-top:32px;flex-direction:column;gap:16px;}
.plan-stack .stack-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);}
.plan-stack .stack-card h3{font-size:16px;margin-bottom:12px;}
.plan-stack dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:8px 14px;font-size:14px;}
.plan-stack dt{color:var(--c-muted);}
@media (max-width:991.98px){
  .plan-grid{grid-template-columns:1fr;gap:20px;}
  .plan.featured{padding-top:32px;padding-bottom:32px;}
  .compare-wrap{display:none;}
  .plan-stack{display:flex;}
}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--c-line);}
.tl-item{position:relative;padding:0 0 40px 22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:8px;
  width:11px;height:11px;border-radius:50%;
  background:var(--c-bg);border:2px solid rgba(11,18,16,.22);
}
.tl-item.on::before{background:var(--c-accent);border-color:var(--c-accent);box-shadow:0 0 0 5px rgba(200,241,53,.22);}
.tl-time{font-size:20px;font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--c-ink);}
.tl-item.on .tl-time{color:var(--c-brand);}
.tl-item h3{font-size:19px;font-weight:800;margin-top:6px;}
.tl-item p{color:var(--c-muted);font-size:15px;margin-top:6px;}
.tl-tags{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap;}
.tl-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;}
.tl-grid .timeline{grid-row:span 2;}
@media (max-width:991.98px){
  .tl-grid{grid-template-columns:1fr;gap:0;}
}
@media (max-width:575.98px){
  .tl-item{padding-left:16px;}
  .tl-time{font-size:18px;}
}

/* ---------- 亮点 / 保障 ---------- */
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.hl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.hl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.hl-card .ico{
  width:42px;height:42px;border-radius:11px;
  background:rgba(12,74,62,.08);
  color:var(--c-brand);
  display:grid;place-items:center;
  font-size:18px;font-weight:900;
  margin-bottom:18px;
}
.hl-card h3{font-size:18px;font-weight:800;}
.hl-card p{margin-top:10px;font-size:14.5px;color:var(--c-muted);}
.hl-grid .hl-card:nth-child(2){transform:translateY(24px);}
.hl-grid .hl-card:nth-child(2):hover{transform:translateY(21px);}
@media (max-width:1199.98px){.hl-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:767.98px){
  .hl-grid{grid-template-columns:1fr;}
  .hl-grid .hl-card:nth-child(2){transform:none;}
  .hl-grid .hl-card:nth-child(2):hover{transform:translateY(-3px);}
}

/* ---------- 深色 CTA 表单 ---------- */
.cta-dark{background:var(--c-ink);color:#E8EAE6;padding:96px 0;position:relative;overflow:hidden;}
.cta-dark::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,53,.14),transparent 65%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;position:relative;z-index:1;}
.cta-grid h2{font-size:clamp(26px,3.2vw,40px);font-weight:800;color:#fff;}
.cta-grid .lead{margin-top:18px;color:#9FA9A4;font-size:16.5px;max-width:34ch;}
.cta-list{margin-top:32px;display:flex;flex-direction:column;gap:14px;}
.cta-list li{display:flex;gap:12px;font-size:15px;color:#CFD8D3;}
.cta-list li b{color:var(--c-accent);font-weight:900;}
.form-card{background:rgba(255,255,255,.04);border:1px solid rgba(232,234,230,.14);border-radius:var(--r-card);padding:32px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:#CFD8D3;margin-bottom:8px;}
.field .req{color:var(--c-accent);margin-left:2px;}
.form-control,.form-select{
  width:100%;height:48px;
  padding:0 14px;
  background:#fff;
  border:1px solid rgba(11,18,16,.14);
  border-radius:var(--r-btn);
  font-size:15px;color:var(--c-ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  appearance:none;
}
select.form-select{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230B1210'%3e%3cpath d='M8 11 3 6h10z'/%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 14px center;background-size:14px;padding-right:38px;}
textarea.form-control{height:auto;padding:12px 14px;min-height:88px;resize:vertical;line-height:1.6;}
.form-control:focus,.form-select:focus{
  outline:none;
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(200,241,53,.35);
}
.form-control.is-error,.form-select.is-error{border-color:var(--c-accent-2);box-shadow:0 0 0 3px rgba(255,106,61,.16);}
.err-tip{display:none;margin-top:6px;font-size:13px;color:#FF9370;}
.err-tip.show{display:block;}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:#9FA9A4;line-height:1.6;}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--c-accent);flex:none;}
.privacy{margin-top:14px;font-size:12.5px;color:#7C8781;}
.modal-content{border-radius:var(--r-card);border:0;}
.modal-backdrop.show{opacity:.6;}
@media (max-width:991.98px){
  .cta-dark{padding:64px 0;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .form-card{padding:24px;}
  .form-row{grid-template-columns:1fr;}
}

/* ---------- 内容列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-cover{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-cover .badge-soft{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--c-brand);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:18px;font-weight:800;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a:hover{color:var(--c-brand);}
.post-body p{font-size:14.5px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1;}
.post-meta{font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums;padding-top:12px;border-top:1px solid var(--c-line);}
.empty-state{
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  padding:64px 24px;
  text-align:center;
}
.empty-state .icon{font-size:48px;line-height:1;color:rgba(11,18,16,.18);}
.empty-state p{margin:16px 0 22px;color:var(--c-muted);font-size:15px;}
@media (max-width:991.98px){.post-grid{grid-template-columns:1fr 1fr;gap:20px;}}
@media (max-width:767.98px){.post-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;}
.accordion-item{background:var(--c-surface);border:0;border-bottom:1px solid var(--c-line);border-radius:0 !important;}
.accordion-item:first-of-type{border-top:1px solid var(--c-line);}
.accordion-button{
  background:var(--c-surface);
  color:var(--c-ink);
  font-size:17px;font-weight:800;
  padding:22px 8px;
  border-radius:0;
  box-shadow:none;
  position:relative;
  padding-left:20px;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:2px;
  background:transparent;transition:background .2s var(--ease);
}
.accordion-button:not(.collapsed){background:var(--c-surface);color:var(--c-brand);}
.accordion-button:not(.collapsed)::before{background:var(--c-brand);}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button::after{
  background-image:none;
  content:"+";
  font-size:22px;font-weight:400;line-height:1;
  width:auto;height:auto;
  display:grid;place-items:center;
  transform:none;
  color:var(--c-brand);
  transition:transform .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.accordion-body{padding:0 8px 26px 20px;color:#3A4642;font-size:15.5px;max-width:76ch;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1210;color:#E8EAE6;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:900;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-ink);}
.site-footer p{color:#9AA5A0;font-size:14.5px;max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.04em;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:#9AA5A0;font-size:14.5px;}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(232,234,230,.12);
  padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8781;
}
.footer-bottom a{color:#7C8781;}
.footer-bottom a:hover{color:var(--c-accent);}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;}.footer-bottom{flex-direction:column;gap:8px;}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
.hero-copy > *{opacity:0;transform:translateY(16px);animation:heroIn .6s var(--ease) forwards;}
.hero-copy > *:nth-child(1){animation-delay:.05s;}
.hero-copy > *:nth-child(2){animation-delay:.11s;}
.hero-copy > *:nth-child(3){animation-delay:.17s;}
.hero-copy > *:nth-child(4){animation-delay:.23s;}
.hero-copy > *:nth-child(5){animation-delay:.29s;}
@keyframes heroIn{to{opacity:1;transform:none;}}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  .hero-copy > *{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --c-ink:#0B1210;
  --c-brand:#0C4A3E;
  --c-brand-deep:#092F27;
  --c-accent:#C8F135;
  --c-accent-2:#FF6A3D;
  --c-bg:#F5F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(11,18,16,.10);
  --c-muted:#6B7672;
  --r-badge:999px;
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(11,18,16,.06);
  --sh-2:0 14px 36px -18px rgba(11,18,16,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Archivo","Barlow",ui-sans-serif,system-ui,sans-serif;

  --bs-primary:#0C4A3E;
  --bs-body-bg:#F5F4EF;
  --bs-body-color:#0B1210;
  --bs-font-sans-serif:var(--font-cn);
  --bs-border-radius:14px;
  --bs-border-color:rgba(11,18,16,.10);
  --bs-link-color:#0B1210;
  --bs-link-hover-color:#0C4A3E;
  --bs-body-font-size:16px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--c-brand);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--c-accent);color:var(--c-ink);}
.tnum{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}
@media (max-width:1399.98px){.container{max-width:1140px;}}
@media (max-width:1199.98px){.container{max-width:960px;}}
@media (max-width:991.98px){.container{max-width:none;padding:0 20px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--c-brand-deep);
  color:rgba(232,234,230,.82);
  font-size:12.5px;
  min-height:38px;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-domain{
  font-family:var(--font-num);
  font-weight:700;
  color:#fff;
  letter-spacing:.05em;
  padding-right:14px;
  border-right:1px solid rgba(232,234,230,.22);
  white-space:nowrap;
}
.topbar-tip{color:rgba(232,234,230,.66);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:22px;white-space:nowrap;}
.topbar-right a{color:rgba(232,234,230,.82);font-size:12.5px;}
.topbar-right a:hover{color:var(--c-accent);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1035;
  background:rgba(245,244,239,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px -22px rgba(11,18,16,.55);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.015em;color:var(--c-ink);white-space:nowrap;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--c-brand);color:var(--c-accent);
  display:grid;place-items:center;font-size:17px;font-weight:800;
  flex:0 0 34px;
}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:#2A3733;padding:8px 0;}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;
  background:var(--c-brand);border-radius:2px;
  transition:left .24s var(--ease),right .24s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{left:0;right:0;}
.nav-links a.active{font-weight:700;color:var(--c-ink);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:var(--c-brand);color:#fff;border-color:var(--c-brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn i{transition:transform .24s var(--ease);}
.btn-primary{background:var(--c-brand);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--c-ink);color:#fff;}
.btn-primary:hover i{transform:translateX(4px);}
.btn-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand);}
.btn-outline:hover{background:rgba(12,74,62,.08);color:var(--c-brand);}
.btn-light{background:var(--c-accent);color:var(--c-ink);font-weight:700;}
.btn-light:hover{background:#fff;color:var(--c-ink);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);}
.btn-lg{height:52px;padding:0 26px;font-size:16px;}
.btn-sm{height:36px;padding:0 14px;font-size:13.5px;}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,241,53,.55);}

/* ---------- 移动端面板 ---------- */
.mobile-nav{background:var(--c-bg);width:min(88vw,380px);border-left:1px solid var(--c-line)!important;}
.mobile-nav .offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--c-line);}
.mobile-nav .offcanvas-body{padding:12px 20px 20px;}
.mobile-nav .m-link{
  display:block;font-size:19px;font-weight:700;padding:18px 2px;
  border-bottom:1px solid var(--c-line);color:var(--c-ink);
}
.mobile-nav .m-link.active{color:var(--c-brand);}
.mobile-nav .m-link:hover{color:var(--c-brand);}
.mobile-nav-foot{padding:16px 20px 24px;border-top:1px solid var(--c-line);position:sticky;bottom:0;background:var(--c-bg);}

/* ---------- 文章头部 ---------- */
.article-top{padding:34px 0 0;}
.breadcrumb-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--c-muted);}
.breadcrumb-bar a{color:var(--c-muted);}
.breadcrumb-bar a:hover{color:var(--c-brand);}
.breadcrumb-bar .sep{opacity:.45;}
.breadcrumb-bar .current{color:var(--c-ink);font-weight:700;max-width:min(60vw,460px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{padding:26px 0 0;position:relative;}
.article-head::after{
  content:"";position:absolute;right:0;top:14px;width:96px;height:1px;
  background:var(--c-line);display:none;
}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(12,74,62,.08);color:var(--c-brand);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-badge);
}
.badge-cat i{font-size:11px;}
.article-head h1{
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.025em;
  margin:18px 0 20px;
  max-width:960px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:14px;
  color:var(--c-muted);font-size:13.5px;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}
.article-meta .m-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .m-item i{font-size:12px;color:var(--c-brand);}
.article-meta .vline{width:1px;height:12px;background:var(--c-line);}
.article-rule{height:1px;background:var(--c-line);margin-top:30px;}

/* ---------- 正文 ---------- */
.article-wrap{padding-top:8px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px) minmax(0,1fr);
  gap:56px;
  align-items:start;
  padding-top:42px;
}
.article-body{
  font-size:17.5px;
  line-height:1.85;
  color:#22322C;
  min-width:0;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.6vw,28px);
  font-weight:800;
  line-height:1.3;
  margin:48px 0 18px;
  padding-left:14px;
  color:var(--c-ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;
  width:4px;border-radius:2px;background:var(--c-brand);
}
.article-body h3{font-size:20px;font-weight:700;margin:32px 0 12px;color:var(--c-ink);}
.article-body h4{font-size:17.5px;font-weight:700;margin:24px 0 10px;}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;
  background:var(--c-surface);
  border-left:3px solid var(--c-accent);
  border-radius:0 12px 12px 0;
  color:#2A3733;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:28px auto;height:auto;}
.article-body figure{margin:28px 0;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--c-brand);
}
.article-body ol{counter-reset:li-counter;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:li-counter;}
.article-body ol li::before{
  content:counter(li-counter);
  position:absolute;left:0;top:.12em;
  font-family:var(--font-num);font-weight:700;font-size:15px;color:var(--c-brand);
}
.article-body a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-ink);}
.article-body strong{font-weight:700;color:var(--c-ink);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}
.article-body table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;margin:26px 0;font-size:15.5px;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left;min-width:110px;}
.article-body th{background:#EFEEE7;font-weight:700;}
.article-body code{
  background:#EFEEE7;border-radius:6px;padding:2px 6px;
  font-family:var(--font-num);font-size:.92em;
}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-card h3{font-size:15px;font-weight:800;margin-bottom:14px;letter-spacing:.01em;}
.side-card h3 span{color:var(--c-muted);font-weight:500;font-size:12px;margin-left:6px;}
.side-links li + li{margin-top:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14.5px;padding:11px 0 11px 0;
  border-bottom:1px solid var(--c-line);
  color:#2A3733;
}
.side-links li:last-child a{border-bottom:0;}
.side-links a i{font-size:11px;color:var(--c-muted);transition:transform .22s var(--ease),color .22s var(--ease);}
.side-links a:hover{color:var(--c-brand);}
.side-links a:hover i{color:var(--c-brand);transform:translateX(3px);}
.side-cta{
  background:var(--c-brand-deep);
  color:#E8EAE6;
  border-radius:var(--r-card);
  padding:24px;
}
.side-cta h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:rgba(232,234,230,.72);line-height:1.7;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- 文末 ---------- */
.article-foot{padding-top:34px;grid-column:1 / -1;}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding-top:26px;border-top:1px solid var(--c-line);}
.tag-row .tag-label{font-size:13px;color:var(--c-muted);margin-right:4px;}
.tag{
  font-size:13px;padding:6px 14px;border-radius:var(--r-badge);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-muted);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.tag:hover{background:var(--c-brand);border-color:var(--c-brand);color:#fff;}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 24px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
}
.empty-state i{font-size:48px;color:var(--c-brand);opacity:.55;}
.empty-state h3{font-size:20px;margin:18px 0 8px;}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.section{padding:64px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.8vw,32px);font-weight:800;line-height:1.2;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--c-brand);
}
.section-head .more{font-size:14px;color:var(--c-muted);display:inline-flex;align-items:center;gap:6px;}
.section-head .more:hover{color:var(--c-brand);}
.section-head .more i{transition:transform .22s var(--ease);}
.section-head .more:hover i{transform:translateX(4px);}

.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.reco-item{
  display:flex;gap:14px;padding:14px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  min-width:0;
}
.reco-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(12,74,62,.24);color:inherit;}
.reco-thumb{
  flex:0 0 92px;width:92px;height:92px;border-radius:10px;overflow:hidden;background:#E7E5DC;
}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.reco-item:hover .reco-thumb img{transform:scale(1.06);}
.reco-body{min-width:0;display:flex;flex-direction:column;justify-content:center;gap:6px;}
.reco-body .reco-kicker{font-size:11.5px;font-weight:600;color:var(--c-brand);letter-spacing:.02em;}
.reco-body h3{font-size:15.5px;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.reco-body .reco-time{font-size:12.5px;color:var(--c-muted);font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 底部 CTA ---------- */
.cta-block{
  margin-top:64px;
  background:var(--c-ink);
  color:#E8EAE6;
  border-radius:var(--r-img);
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-block::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(200,241,53,.16),transparent 70%);
}
.cta-copy{max-width:620px;position:relative;}
.cta-copy h2{font-size:clamp(22px,2.8vw,32px);font-weight:800;line-height:1.22;color:#fff;}
.cta-copy p{margin-top:12px;color:rgba(232,234,230,.72);font-size:15.5px;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;}
.cta-actions .btn-outline{border-color:rgba(232,234,230,.4);color:#E8EAE6;}
.cta-actions .btn-outline:hover{background:rgba(232,234,230,.1);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1210;color:#E8EAE6;margin-top:96px;padding:64px 0 0;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-brand);color:var(--c-accent);}
.site-footer p{color:rgba(232,234,230,.68);line-height:1.85;font-size:14px;max-width:420px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:rgba(232,234,230,.68);font-size:14px;}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  border-top:1px solid rgba(232,234,230,.14);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(232,234,230,.55);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:40px;}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .topbar-tip{display:none;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;}
  .header-actions .btn-primary{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-side{position:static;margin-top:40px;}
  .cta-block{padding:32px 24px;margin-top:48px;}
  .section{padding:48px 0 0;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer p{max-width:none;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .topbar{font-size:12px;}
  .topbar-right a:first-child{display:none;}
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:15px;}
  .article-top{padding-top:24px;}
  .article-head h1{font-size:clamp(32px,8vw,40px);}
  .article-body{font-size:17px;line-height:1.8;}
  .article-body h2{margin:36px 0 14px;}
  .reco-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .breadcrumb-bar .current{max-width:70vw;}
  .foot-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
}

/* roulang page: category1 */
:root{
  --c-ink:#0B1210;
  --c-brand:#0C4A3E;
  --c-brand-deep:#092F27;
  --c-accent:#C8F135;
  --c-accent-2:#FF6A3D;
  --c-bg:#F5F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(11,18,16,.10);
  --c-muted:#6B7672;
  --r-badge:999px;
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --shadow-1:0 1px 2px rgba(11,18,16,.06);
  --shadow-2:0 14px 36px -18px rgba(11,18,16,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#0C4A3E;
  --bs-body-bg:#F5F4EF;
  --bs-body-color:#0B1210;
  --bs-border-color:rgba(11,18,16,.10);
  --bs-border-radius:14px;
  --bs-link-color:#0B1210;
  --bs-link-hover-color:#0C4A3E;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--bs-font-sans-serif);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-brand)}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.015em;line-height:1.15}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(200,241,53,.7);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
@media (max-width:1399.98px){.container{max-width:1140px}}
@media (max-width:1199.98px){.container{max-width:960px}}
@media (max-width:991.98px){.container{max-width:100%;padding:0 20px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-brand-deep);color:rgba(232,234,230,.86);font-size:13px;height:38px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-domain{font-weight:700;color:#fff;letter-spacing:.04em}
.topbar-note{color:rgba(232,234,230,.62);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:20px}
.topbar-right a{color:rgba(232,234,230,.86);font-weight:600}
.topbar-right a:hover{color:var(--c-accent)}
@media (max-width:991.98px){
  .topbar .topbar-note,.topbar-right a:last-child{display:none}
}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(245,244,239,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);transition:box-shadow .24s var(--ease)}
.site-header.is-scrolled{box-shadow:0 12px 30px -26px rgba(11,18,16,.6)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;flex:0 0 auto}
.brand:hover{color:var(--c-ink)}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--c-brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;flex:0 0 auto}
.brand-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;font-weight:600;color:#26332F;padding:6px 0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:center;transition:transform .24s var(--ease)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-brand);font-weight:800}
.header-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;color:var(--c-ink)}
@media (max-width:1199.98px){.nav-links{gap:18px}.nav-links a{font-size:14px}}
@media (max-width:991.98px){
  .nav-links{display:none}
  .header-inner{height:60px;gap:12px}
  .brand{font-size:16px}
}
.mobile-nav{background:var(--c-bg);width:min(88vw,380px);display:flex;flex-direction:column}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 22px}
.mobile-nav .offcanvas-body{display:flex;flex-direction:column;padding:22px}
.mobile-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.mobile-links a{font-size:19px;font-weight:700;padding:14px 0;border-bottom:1px solid var(--c-line)}
.mobile-links a.active{color:var(--c-brand)}
.mobile-nav .btn{margin-top:auto}

/* ---------- 按钮 ---------- */
.btn{
  border-radius:var(--r-btn);font-weight:700;font-size:15px;height:44px;padding:0 22px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-brand{background:var(--c-brand);color:#fff}
.btn-brand:hover{background:var(--c-ink);color:#fff}
.btn-brand .arrow{transition:transform .22s var(--ease)}
.btn-brand:hover .arrow{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:rgba(12,74,62,.08);color:var(--c-brand)}
.btn-outline-light2{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light2:hover{background:#fff;color:var(--c-ink);border-color:#fff}
.btn-ink{background:var(--c-ink);color:#fff}
.btn-ink:hover{background:var(--c-brand);color:#fff}
.btn-sm{height:36px;font-size:14px;padding:0 16px}
.btn-lg{height:52px;font-size:16px;padding:0 28px}
.btn-accent{background:var(--c-accent);color:var(--c-ink)}
.btn-accent:hover{background:#fff;color:var(--c-ink)}
.btn-accent .arrow{transition:transform .22s var(--ease)}
.btn-accent:hover .arrow{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.crumb{font-size:14px;color:rgba(232,234,230,.7);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:0}
.crumb a{color:rgba(232,234,230,.7)}
.crumb a:hover{color:var(--c-accent)}
.crumb .sep{opacity:.45}
.crumb .current{color:#fff;font-weight:700}

/* ---------- Hero ---------- */
.page-hero{position:relative;background:var(--c-ink);color:#fff;min-height:min(72vh,620px);display:flex;align-items:flex-end;overflow:hidden}
.page-hero .hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,16,.55) 0%,rgba(9,47,39,.72) 52%,rgba(11,18,16,.94) 100%)}
.page-hero .hero-inner{position:relative;z-index:2;width:100%;padding-top:96px;padding-bottom:52px}
.hero-coord{position:absolute;left:0;right:0;top:38%;height:1px;background:rgba(255,255,255,.14);z-index:1}
.hero-coord::after{content:"通道坐标 / 01";position:absolute;right:24px;top:-20px;font-size:11px;letter-spacing:.16em;color:rgba(255,255,255,.42)}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(200,241,53,.14);border:1px solid rgba(200,241,53,.36);color:var(--c-accent);font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:var(--r-badge);margin-bottom:20px}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.page-hero h1{font-size:clamp(32px,5.2vw,62px);font-weight:900;letter-spacing:-.025em;line-height:1.08;max-width:16em}
.page-hero h1 em{font-style:normal;color:var(--c-accent)}
.hero-sub{margin-top:18px;font-size:clamp(16px,1.5vw,20px);line-height:1.7;color:rgba(255,255,255,.84);max-width:44em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:44px;border-top:1px solid rgba(255,255,255,.18);padding-top:22px}
.hero-stats>div{padding-right:40px;margin-right:40px;border-right:1px solid rgba(255,255,255,.16)}
.hero-stats>div:last-child{border-right:0;margin-right:0}
.hero-stats .num{display:block;font-size:clamp(26px,3vw,36px);font-weight:900;letter-spacing:-.03em;color:#fff;line-height:1.1}
.hero-stats .lbl{font-size:13px;color:rgba(255,255,255,.6);letter-spacing:.02em}
@media (max-width:767.98px){
  .page-hero{min-height:auto}
  .page-hero .hero-inner{padding-top:72px;padding-bottom:40px}
  .hero-stats{gap:16px 0}
  .hero-stats>div{padding-right:22px;margin-right:22px}
}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-dark{background:var(--c-ink);color:#fff}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--c-brand);text-transform:uppercase;margin-bottom:14px}
.section-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.14}
.section-head p{margin-top:16px;font-size:17px;color:var(--c-muted);line-height:1.8}
.section-dark .section-head .eyebrow{color:var(--c-accent)}
.section-dark .section-head p{color:rgba(232,234,230,.72)}
@media (max-width:991.98px){.section{padding:72px 0}.section-tight{padding:56px 0}}
@media (max-width:767.98px){.section{padding:56px 0}.section-head{margin-bottom:32px}}

/* ---------- 正文与要点 ---------- */
.lead-block{border-left:3px solid var(--c-brand);padding-left:22px;margin-bottom:8px}
.lead-block p{font-size:17.5px;line-height:1.85;color:#28332F}
.lead-block p+p{margin-top:14px}
.step-item{display:flex;gap:32px;padding:44px 0;border-top:1px solid var(--c-line);align-items:flex-start}
.step-item:first-child{border-top:0;padding-top:8px}
.step-num{flex:0 0 auto;width:118px;font-size:clamp(48px,7vw,86px);font-weight:900;line-height:.9;color:rgba(12,74,62,.16);letter-spacing:-.05em}
.step-item:nth-child(even){flex-direction:row-reverse}
.step-item:nth-child(even) .step-body{text-align:left}
.step-body{flex:1 1 auto;min-width:0}
.step-body h3{font-size:22px;margin-bottom:12px}
.step-body p{color:#37423E;font-size:16.5px;line-height:1.85}
.tick-list{margin-top:18px;display:grid;gap:10px}
.tick-list li{position:relative;padding-left:26px;font-size:15.5px;color:#37423E;line-height:1.75}
.tick-list li::before{content:"";position:absolute;left:2px;top:9px;width:10px;height:10px;border-radius:3px;background:var(--c-brand);opacity:.9}
.tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;background:rgba(11,18,16,.05);color:#42504B;border-radius:var(--r-badge);padding:5px 13px;margin-bottom:14px}
.tag.tag-accent{background:rgba(200,241,53,.5);color:#1E2C1A}
.tag.tag-warn{background:rgba(255,106,61,.14);color:#B93E17}
@media (max-width:767.98px){
  .step-item,.step-item:nth-child(even){flex-direction:column;gap:14px;padding:32px 0}
  .step-num{width:auto;font-size:52px}
}

/* ---------- 图片块 ---------- */
.figure-block{margin:40px 0 8px}
.figure-block img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow-1)}
.figure-block figcaption{margin-top:12px;font-size:13px;color:var(--c-muted);text-align:center}

/* ---------- 通道对比 ---------- */
.channel-table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);font-size:15px;margin-top:36px}
.channel-table thead th{background:var(--c-ink);color:#fff;font-size:13.5px;font-weight:700;letter-spacing:.04em;text-align:left;padding:16px 20px}
.channel-table tbody td{padding:18px 20px;border-top:1px solid var(--c-line);vertical-align:top;color:#37423E;line-height:1.7}
.channel-table tbody tr:nth-child(even){background:rgba(11,18,16,.022)}
.channel-table tbody td:first-child{font-weight:800;color:var(--c-ink);white-space:nowrap}
.channel-cards{display:grid;gap:14px;margin-top:28px}
.channel-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1)}
.channel-card h3{font-size:18px;margin-bottom:8px}
.channel-card dl{display:grid;grid-template-columns:88px 1fr;gap:6px 12px;font-size:14.5px;color:#37423E}
.channel-card dt{color:var(--c-muted)}
.channel-card dd{margin:0}

/* ---------- 侧栏快速入口 ---------- */
.quick-panel{position:sticky;top:96px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-1)}
.quick-panel h2{font-size:17px;margin-bottom:6px}
.quick-panel .hint{font-size:13.5px;color:var(--c-muted);margin-bottom:18px}
.quick-list{display:grid;gap:2px}
.quick-list a{display:flex;align-items:center;gap:14px;padding:14px 10px 14px 12px;border-top:1px solid var(--c-line);position:relative;font-size:15px;font-weight:600;color:#26332F;transition:color .22s var(--ease),padding-left .22s var(--ease)}
.quick-list a:first-child{border-top:0}
.quick-list a::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--c-accent);transform:scaleY(0);transform-origin:center;transition:transform .22s var(--ease)}
.quick-list a:hover{color:var(--c-brand);padding-left:16px}
.quick-list a:hover::before{transform:scaleY(1)}
.quick-list .idx{font-size:13px;font-weight:800;color:var(--c-muted);letter-spacing:.04em;min-width:22px}
.quick-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-muted);line-height:1.7}
@media (max-width:991.98px){.quick-panel{position:static;margin-top:40px}}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1)}
.faq-acc .accordion-button{position:relative;background:#fff;color:var(--c-ink);font-size:17px;font-weight:700;padding:20px 60px 20px 22px;border-radius:var(--r-card);box-shadow:none;transition:color .22s var(--ease),background-color .22s var(--ease)}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-button::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--c-brand);transform:scaleY(0);transform-origin:center;transition:transform .24s var(--ease)}
.faq-acc .accordion-button:hover{color:var(--c-brand)}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-brand);background:#fff}
.faq-acc .accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.faq-acc .faq-icon{margin-left:auto;position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;line-height:1;color:var(--c-brand);transition:transform .24s var(--ease)}
.faq-acc .accordion-button:not(.collapsed) .faq-icon{transform:translateY(-50%) rotate(45deg)}
.faq-acc .accordion-body{padding:0 22px 22px;font-size:15.5px;line-height:1.85;color:#37423E}

/* ---------- CTA ---------- */
.cta-block{background:var(--c-ink);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.cta-block::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(200,241,53,.16),rgba(200,241,53,0) 70%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.cta-inner h2{font-size:clamp(26px,3.1vw,38px);line-height:1.16}
.cta-inner p{margin-top:16px;color:rgba(232,234,230,.74);font-size:16.5px;line-height:1.8;max-width:36em}
.cta-points{display:grid;gap:14px}
.cta-points li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;color:rgba(232,234,230,.9);line-height:1.7}
.cta-points .bullet{flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:rgba(200,241,53,.16);color:var(--c-accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:3px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
@media (max-width:991.98px){.cta-block{padding:56px 0}.cta-inner{grid-template-columns:1fr;gap:32px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#E8EAE6;padding:72px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-brand);color:var(--c-accent)}
.site-footer p{color:rgba(232,234,230,.68);line-height:1.8;max-width:34em}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#fff;margin-bottom:18px;font-weight:800}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:rgba(232,234,230,.7);font-size:14.5px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(232,234,230,.55)}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.hero-anim{opacity:0;transform:translateY(16px);animation:heroIn .6s var(--ease) forwards}
.hero-anim.d1{animation-delay:.06s}
.hero-anim.d2{animation-delay:.12s}
.hero-anim.d3{animation-delay:.18s}
.hero-anim.d4{animation-delay:.24s}
@keyframes heroIn{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.hero-anim{opacity:1!important;transform:none!important;animation:none!important;transition:none!important}
  .btn-brand:hover .arrow,.btn-accent:hover .arrow{transform:none}
}

/* roulang page: category2 */
:root{
  --c-ink:#0B1210;
  --c-brand:#0C4A3E;
  --c-brand-deep:#092F27;
  --c-accent:#C8F135;
  --c-accent-2:#FF6A3D;
  --c-bg:#F5F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(11,18,16,.10);
  --c-muted:#6B7672;
  --r-btn:10px;
  --r-card:14px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(11,18,16,.06);
  --sh-2:0 14px 36px -18px rgba(11,18,16,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Archivo","Barlow","Helvetica Neue",Arial,sans-serif;
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-ink);
  --bs-body-font-family:var(--sans);
  --bs-font-sans-serif:var(--sans);
  --bs-primary:#0C4A3E;
  --bs-border-radius:14px;
  --bs-link-color:var(--c-ink);
  --bs-link-hover-color:var(--c-brand);
  --bs-emphasis-color:var(--c-ink);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);font-family:var(--sans);
  font-size:16px;line-height:1.75;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-brand)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:-.01em}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,241,53,.55);border-radius:6px}
.container{width:100%;margin:0 auto;padding:0 24px;max-width:100%}
@media (min-width:992px){.container{max-width:960px}}
@media (min-width:1200px){.container{max-width:1140px}}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- buttons ---------- */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-c i{transition:transform .24s var(--ease);font-size:13px}
.btn-c:hover i{transform:translateX(4px)}
.btn-c-primary{background:var(--c-brand);color:#fff}
.btn-c-primary:hover{background:var(--c-ink);color:#fff;box-shadow:var(--sh-2)}
.btn-c-lime{background:var(--c-accent);color:var(--c-ink)}
.btn-c-lime:hover{background:#fff;color:var(--c-ink);box-shadow:var(--sh-2)}
.btn-c-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-c-outline:hover{background:rgba(12,74,62,.08);color:var(--c-brand)}
.btn-c-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-c-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.btn-sm-c{height:38px;padding:0 16px;font-size:14px}
.btn-lg-c{height:52px;padding:0 26px;font-size:16px}

/* ---------- badges / tags ---------- */
.badge-c{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-lime{background:var(--c-accent);color:var(--c-ink)}
.badge-soft{background:rgba(12,74,62,.09);color:var(--c-brand)}
.badge-line{border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-muted)}
.tag-c{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;border:1px solid var(--c-line);background:rgba(11,18,16,.03);font-size:12px;font-weight:600;color:var(--c-muted);margin:0 6px 6px 0}
.tag-hot{border-color:rgba(255,106,61,.4);background:rgba(255,106,61,.10);color:#C94A22}

/* ---------- topbar ---------- */
.topbar{background:var(--c-brand-deep);color:rgba(232,234,230,.84);font-size:12.5px;height:38px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.tb-domain{font-family:var(--mono);color:var(--c-accent);letter-spacing:.02em}
.tb-sep{width:1px;height:12px;background:rgba(255,255,255,.22);flex:0 0 auto}
.topbar-hint{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;gap:20px;flex:0 0 auto}
.topbar-right a{color:rgba(232,234,230,.84)}
.topbar-right a:hover{color:var(--c-accent)}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(245,244,239,.97);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);transition:box-shadow .24s var(--ease)}
.site-header.scrolled{box-shadow:0 8px 26px -18px rgba(11,18,16,.45)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:var(--c-brand);color:#fff;font-size:16px;font-weight:800;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--c-ink);white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:50%;right:50%;bottom:-1px;height:2px;background:var(--c-brand);transition:left .24s var(--ease),right .24s var(--ease)}
.nav-links a:hover::after,.nav-links a.active::after{left:0;right:0}
.nav-links a.active{font-weight:800;color:var(--c-brand)}
.header-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);font-size:18px;display:inline-flex;align-items:center;justify-content:center}
.nav-toggle:hover{background:rgba(12,74,62,.08);color:var(--c-brand)}
.offcanvas.offnav{background:var(--c-bg);color:var(--c-ink);width:min(88vw,360px);border-left:0}
.offnav .offcanvas-header{padding:20px 24px;border-bottom:1px solid var(--c-line)}
.offnav .offcanvas-title{font-size:17px;font-weight:800}
.offnav .offcanvas-body{display:flex;flex-direction:column;padding:8px 24px 24px}
.offnav a.off-link{font-size:20px;font-weight:700;padding:16px 0;border-bottom:1px solid var(--c-line);color:var(--c-ink)}
.offnav a.off-link.active{color:var(--c-brand)}
.offnav-cta{margin-top:auto;padding-top:28px}
.offnav-cta .btn-c{width:100%}

/* ---------- breadcrumb ---------- */
.crumb{padding:20px 0 0}
.crumb ol{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);flex-wrap:wrap}
.crumb li+li::before{content:"›";margin-right:8px;color:rgba(11,18,16,.28)}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-brand)}
.crumb [aria-current]{color:var(--c-ink);font-weight:700}

/* ---------- hero split ---------- */
.hero-split{padding:28px 0 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,1fr);gap:24px;align-items:stretch}
.hero-panel{position:relative;overflow:hidden;border-radius:var(--r-img);padding:56px 48px;background:linear-gradient(148deg,var(--c-brand-deep) 0%,var(--c-ink) 100%);color:#E8EAE6;display:flex;flex-direction:column;justify-content:center}
.hero-panel::after{content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(200,241,53,.20),transparent 66%);pointer-events:none}
.hero-panel::before{content:"";position:absolute;left:48px;right:48px;top:26px;height:1px;background:linear-gradient(90deg,rgba(200,241,53,.55),rgba(255,255,255,.06));pointer-events:none}
.hero-panel h1{font-size:clamp(32px,4.2vw,50px);font-weight:800;line-height:1.14;letter-spacing:-.02em;color:#fff;margin:22px 0 16px}
.hero-lead{font-size:19px;line-height:1.6;color:rgba(232,234,230,.86);max-width:30ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;position:relative;z-index:1}
.hero-note{margin-top:22px;font-size:13px;color:rgba(232,234,230,.6);display:flex;align-items:center;gap:8px}
.hero-note i{color:var(--c-accent);font-size:12px}
.hero-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.h-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.h-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.h-card .ico{width:40px;height:40px;border-radius:10px;background:rgba(12,74,62,.09);color:var(--c-brand);display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:16px}
.h-card h3{font-size:17px;font-weight:700;line-height:1.4;margin-bottom:6px}
.h-card p{font-size:14px;line-height:1.65;color:var(--c-muted)}

/* ---------- stat bar ---------- */
.stat-bar{margin-top:24px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden}
.stat{padding:24px 28px;border-left:1px solid var(--c-line)}
.stat:first-child{border-left:0}
.stat-num{display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:32px;font-weight:800;color:var(--c-brand);line-height:1.1;letter-spacing:-.02em}
.stat-label{display:block;margin-top:4px;font-size:13px;color:var(--c-muted)}

/* ---------- sections ---------- */
.sec{padding:96px 0}
.sec-tight{padding:72px 0}
.sec-line{border-top:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.sec-kicker{display:inline-block;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--c-brand);text-transform:uppercase;margin-bottom:12px}
.sec h2{font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.16;letter-spacing:-.02em}
.sec-sub{margin-top:14px;font-size:16px;color:var(--c-muted);max-width:660px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--c-brand);border-bottom:1px solid rgba(12,74,62,.28);padding-bottom:4px;white-space:nowrap}
.link-more i{font-size:12px;transition:transform .24s var(--ease)}
.link-more:hover i{transform:translateX(4px)}

/* ---------- points grid ---------- */
.points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 56px}
.point{border-top:1px solid var(--c-line);padding-top:24px;transition:border-color .24s var(--ease)}
.point:hover{border-color:var(--c-brand)}
.point .pnum{display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:clamp(40px,4.6vw,60px);font-weight:800;line-height:1;color:rgba(12,74,62,.16);margin-bottom:10px;letter-spacing:-.03em}
.point h3{font-size:19px;font-weight:700;margin-bottom:8px}
.point p{font-size:15.5px;color:var(--c-muted);line-height:1.75;max-width:46ch}

/* ---------- timeline ---------- */
.timeline{position:relative;margin:0}
.timeline::before{content:"";position:absolute;left:120px;top:14px;bottom:14px;width:1px;background:var(--c-line)}
.tl-item{display:grid;grid-template-columns:120px minmax(0,1fr);position:relative;padding:20px 0;transition:background .24s var(--ease)}
.tl-item::before{content:"";position:absolute;left:114.5px;top:34px;width:11px;height:11px;border-radius:50%;background:var(--c-surface);border:2px solid var(--c-brand)}
.tl-item.is-hot::before{background:var(--c-accent);border-color:var(--c-accent)}
.tl-time{text-align:right;padding-right:32px;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:23px;font-weight:800;color:var(--c-ink);line-height:1.3}
.tl-date{display:block;font-size:12px;font-weight:600;color:var(--c-muted);letter-spacing:.06em;padding-right:32px;text-align:right}
.tl-body{padding-left:32px;padding-right:8px;border-radius:0 var(--r-card) var(--r-card) 0;transition:box-shadow .24s var(--ease)}
.tl-item:hover .tl-body{box-shadow:inset 3px 0 0 var(--c-brand)}
.tl-item:hover .tl-body{padding-left:32px}
.tl-body h3{font-size:19px;font-weight:700;margin-bottom:6px}
.tl-body p{font-size:15px;color:var(--c-muted);line-height:1.7;margin-bottom:10px;max-width:62ch}
.tl-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--c-muted)}
.tl-meta .num{color:var(--c-ink);font-weight:700}

/* ---------- wide figure + two col text ---------- */
.wide-figure{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);margin-bottom:48px}
.wide-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;transition:transform .6s var(--ease)}
.wide-figure:hover img{transform:scale(1.03)}
.wide-figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 32px;font-size:14px;color:rgba(255,255,255,.9);background:linear-gradient(180deg,rgba(11,18,16,0),rgba(11,18,16,.82))}
.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px}
.two-col h3{font-size:20px;font-weight:700;margin-bottom:12px;padding-left:14px;position:relative}
.two-col h3::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;background:var(--c-brand);border-radius:2px}
.two-col p{font-size:15.5px;color:var(--c-muted);line-height:1.8}
.two-col p+p{margin-top:12px}
.mini-list{margin-top:16px;display:grid;gap:10px}
.mini-list li{display:flex;gap:10px;font-size:15px;color:var(--c-muted)}
.mini-list i{color:var(--c-brand);font-size:12px;margin-top:7px}

/* ---------- faq ---------- */
.faq{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:8px 32px;box-shadow:var(--sh-1)}
.faq .accordion-item{border:0;border-top:1px solid var(--c-line);background:transparent;border-radius:0}
.faq .accordion-item:first-child{border-top:0}
.faq .accordion-button{position:relative;background:transparent;box-shadow:none;border-radius:0;padding:22px 56px 22px 16px;font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.5}
.faq .accordion-button::before{content:"";position:absolute;left:0;top:50%;width:3px;height:22px;background:var(--c-brand);transform:translateY(-50%) scaleY(0);transition:transform .24s var(--ease);border-radius:2px}
.faq .accordion-button:not(.collapsed)::before{transform:translateY(-50%) scaleY(1)}
.faq .accordion-button::after{content:"+";position:absolute;right:14px;top:50%;width:auto;height:auto;font-family:var(--mono);font-size:22px;font-weight:500;line-height:1;color:var(--c-brand);background-image:none;transform:translateY(-50%)}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%)}
.faq .accordion-button:not(.collapsed){color:var(--c-brand);background:transparent;box-shadow:none}
.faq .accordion-button:hover{color:var(--c-brand)}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-body{padding:0 56px 26px 16px;font-size:15.5px;line-height:1.85;color:var(--c-muted)}

/* ---------- cta band ---------- */
.cta-band{position:relative;padding:88px 0;color:#fff;background:var(--c-brand-deep) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(92deg,rgba(9,47,39,.95) 0%,rgba(11,18,16,.84) 100%)}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:44px}
.cta-inner h2{font-size:clamp(24px,2.8vw,36px);font-weight:800;line-height:1.2;letter-spacing:-.02em;color:#fff;margin-bottom:14px}
.cta-inner p{font-size:16px;color:rgba(232,234,230,.82);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
.cta-strip{position:relative;margin-top:40px;display:flex;gap:28px;flex-wrap:wrap;font-size:13px;color:rgba(232,234,230,.68)}
.cta-strip span{display:inline-flex;align-items:center;gap:8px}
.cta-strip i{color:var(--c-accent);font-size:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#E8EAE6;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-ink)}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(232,234,230,.66);max-width:360px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(232,234,230,.72)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:rgba(232,234,230,.55);flex-wrap:wrap}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .btn-c i,.wide-figure img{transition:none}
  .h-card:hover{transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links{gap:18px}
  .nav-links a{font-size:14px}
  .hero-panel{padding:44px 36px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .header-cta .btn-c{display:none}
  .header-inner{height:60px}
  .sec{padding:72px 0}
  .hero-grid{grid-template-columns:1fr}
  .hero-panel::before{left:36px;right:36px}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .wide-figure img{aspect-ratio:16/9}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .sec{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .hero-split{padding:20px 0 0}
  .hero-panel{padding:34px 24px}
  .hero-lead{font-size:17px}
  .hero-actions{margin-top:24px}
  .hero-actions .btn-c{width:100%}
  .hero-cards{grid-template-columns:1fr}
  .stat{padding:20px}
  .stat-num{font-size:26px}
  .points{grid-template-columns:1fr;gap:20px}
  .timeline::before{display:none}
  .tl-item{grid-template-columns:1fr;padding:18px 0;border-top:1px solid var(--c-line)}
  .tl-item::before{display:none}
  .tl-time{text-align:left;padding-right:0;font-size:20px}
  .tl-date{text-align:left;padding-right:0;margin-bottom:6px}
  .tl-body{padding-left:0}
  .tl-item:hover .tl-body{box-shadow:none}
  .two-col{grid-template-columns:1fr;gap:28px}
  .wide-figure img{aspect-ratio:4/3}
  .wide-figure figcaption{padding:18px 20px;font-size:13px}
  .faq{padding:4px 20px}
  .faq .accordion-button{padding:18px 44px 18px 12px;font-size:16px}
  .faq .accordion-body{padding:0 20px 22px 12px}
  .cta-band{padding:64px 0}
  .cta-actions{width:100%}
  .cta-actions .btn-c{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --c-ink:#0B1210;
  --c-brand:#0C4A3E;
  --c-brand-deep:#092F27;
  --c-accent:#C8F135;
  --c-accent-2:#FF6A3D;
  --c-bg:#F5F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(11,18,16,.10);
  --c-muted:#6B7672;
  --r-xs:8px; --r-sm:10px; --r-md:14px; --r-lg:16px;
  --sh-1:0 1px 2px rgba(11,18,16,.06);
  --sh-2:0 14px 36px -18px rgba(11,18,16,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#0C4A3E;
  --bs-body-bg:#F5F4EF;
  --bs-body-color:#0B1210;
  --bs-border-radius:14px;
  --bs-link-color:#0B1210;
  --bs-link-hover-color:#0C4A3E;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-brand)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.15;font-weight:800;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:3px solid rgba(200,241,53,.75);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

body .container{
  width:100%;max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px;
}
@media (max-width:1399px){body .container{max-width:1140px}}
@media (max-width:1199px){body .container{max-width:960px}}
@media (max-width:991px){body .container{max-width:100%;padding-left:20px;padding-right:20px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-brand-deep);color:#B6C6C0;font-size:12.5px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;height:38px}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap;overflow:hidden}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex:0 0 auto}
.topbar-left strong{color:#E8F0EC;font-weight:600;letter-spacing:.02em}
.topbar-right{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-right a{color:#B6C6C0}
.topbar-right a:hover{color:var(--c-accent)}
@media (max-width:991px){
  .topbar-right a.secondary{display:none}
  .topbar{font-size:12px}
}
@media (max-width:519px){
  .topbar-left span.hint{display:none}
}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 26px -20px rgba(11,18,16,.5)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);flex:0 0 auto}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--c-brand);color:var(--c-accent);
  display:grid;place-items:center;font-size:16px;font-weight:900;line-height:1;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;color:#33403B;padding:6px 0;font-weight:500;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;background:var(--c-brand);
  transition:left .24s var(--ease),right .24s var(--ease);
}
.nav-links a:hover{color:var(--c-ink)}
.nav-links a:hover::after,.nav-links a.active::after{left:0;right:0}
.nav-links a.active{font-weight:700;color:var(--c-ink)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-sm);
  background:var(--c-brand);color:#fff;font-size:15px;font-weight:600;border:1px solid var(--c-brand);
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-brand:hover{background:var(--c-ink);border-color:var(--c-ink);color:#fff}
.btn-brand .arw{transition:transform .22s var(--ease)}
.btn-brand:hover .arw{transform:translateX(4px)}
.btn-ghost-line{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:var(--r-sm);
  border:1px solid var(--c-brand);color:var(--c-brand);font-weight:600;font-size:15px;background:transparent;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.btn-ghost-line:hover{background:rgba(12,74,62,.08);color:var(--c-brand)}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#fff;align-items:center;justify-content:center;font-size:18px;color:var(--c-ink);
}
@media (max-width:1199px){
  .nav-links{gap:20px}
  .nav-links a{font-size:14px}
}
@media (max-width:991px){
  .nav-links,.nav-actions .btn-ghost-line{display:none}
  .burger{display:inline-flex}
  .nav-row{min-height:60px}
}
.offcanvas.custom-oc{width:min(88vw,380px);background:var(--c-bg);border-left:1px solid var(--c-line)}
.custom-oc .offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px}
.custom-oc .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:8px}
.custom-oc .m-link{
  display:block;padding:14px 4px;font-size:19px;font-weight:700;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.custom-oc .m-link.active{color:var(--c-brand)}
.custom-oc .offcanvas-footer{padding:20px;border-top:1px solid var(--c-line)}

/* ============ 面包屑 ============ */
.crumb{padding-top:26px;font-size:14px;color:var(--c-muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-brand)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--c-ink);font-weight:700}

/* ============ HERO ============ */
.cat-hero{position:relative;padding:52px 0 0;overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--c-line) 1px,transparent 1px),linear-gradient(90deg,var(--c-line) 1px,transparent 1px);
  background-size:64px 64px;opacity:.55;
  -webkit-mask-image:radial-gradient(120% 80% at 20% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(120% 80% at 20% 0%,#000 0%,transparent 72%);
}
.cat-hero > .container{position:relative;z-index:1}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(12,74,62,.10);color:var(--c-brand);font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-tag i{font-size:12px}
.cat-hero h1{
  font-size:clamp(32px,5.2vw,60px);font-weight:900;letter-spacing:-.02em;line-height:1.06;max-width:15ch;
}
.cat-hero h1 .h1-tail{
  display:block;font-size:clamp(18px,2.1vw,26px);font-weight:700;color:var(--c-muted);
  letter-spacing:0;line-height:1.4;margin-top:14px;
}
.hero-sub{margin-top:20px;font-size:clamp(17px,1.6vw,21px);color:#3A4642;max-width:34ch;line-height:1.6}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-strip{
  margin-top:44px;border-radius:var(--r-lg);overflow:hidden;position:relative;aspect-ratio:21/8;
  box-shadow:var(--sh-1);
}
.hero-strip img{width:100%;height:100%;object-fit:cover}
.hero-strip::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,18,16,.78) 0%,rgba(11,18,16,.42) 52%,rgba(11,18,16,.20) 100%);
}
.hero-strip .strip-note{
  position:absolute;left:32px;bottom:28px;right:32px;z-index:2;color:#fff;max-width:640px;
}
.hero-strip .strip-note strong{display:block;font-size:clamp(18px,2.2vw,26px);font-weight:800;letter-spacing:-.01em}
.hero-strip .strip-note span{display:block;font-size:14px;color:#D5DEDA;margin-top:8px}
@media (max-width:767px){
  .cat-hero{padding-top:36px}
  .hero-strip{aspect-ratio:16/10;margin-top:32px}
  .hero-strip .strip-note{left:20px;right:20px;bottom:20px}
  .hero-actions .btn-brand,.hero-actions .btn-ghost-line{width:100%;justify-content:center}
}

/* ============ 三格步骤条 ============ */
.step-section{padding:64px 0 8px}
.step-bar{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;
  position:relative;padding-top:36px;border-top:1px solid var(--c-line);
}
.step-item{position:relative}
.step-item::before{
  content:"";position:absolute;top:-41px;left:0;width:10px;height:10px;border-radius:50%;
  background:#fff;border:2px solid var(--c-brand);
}
.step-item:first-child::before{background:var(--c-accent);border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(200,241,53,.28)}
.step-num{
  display:block;font-size:15px;font-weight:800;color:var(--c-brand);letter-spacing:.12em;
  font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.step-item h3{font-size:19px;font-weight:800;margin-bottom:8px}
.step-item p{font-size:15px;color:var(--c-muted);line-height:1.72}
@media (max-width:767px){
  .step-section{padding:48px 0 0}
  .step-bar{grid-template-columns:1fr;gap:28px;padding-top:28px}
  .step-item::before{top:-34px}
}

/* ============ 区块通用 ============ */
.section{padding:80px 0}
.section-line{border-top:1px solid var(--c-line)}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-brand);
  text-transform:uppercase;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(26px,3.2vw,40px);font-weight:800;letter-spacing:-.015em}
.sec-head p{margin-top:14px;font-size:16.5px;color:var(--c-muted);line-height:1.8}
@media (max-width:767px){.section{padding:56px 0}}

/* ============ 图文交错 ============ */
.zig{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--c-line);
}
.zig:last-of-type{border-bottom:0}
.zig-media{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--sh-1);background:#E6E5DE}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.zig-media:hover img{transform:scale(1.04)}
.zig.reverse .zig-media{order:2}
.zig.reverse .zig-body{order:1}
.zig-body h3{font-size:clamp(21px,2.3vw,28px);font-weight:800;margin-bottom:14px;letter-spacing:-.01em}
.zig-body p{font-size:16.5px;color:#3A4642;line-height:1.85}
.zig-list{margin-top:20px;display:grid;gap:12px}
.zig-list li{display:flex;gap:12px;font-size:15.5px;color:var(--c-muted);line-height:1.7}
.zig-list li i{color:var(--c-brand);font-size:13px;margin-top:7px;flex:0 0 auto}
@media (max-width:991px){
  .zig{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .zig.reverse .zig-media,.zig.reverse .zig-body{order:0}
}

/* ============ 问题类型卡片 ============ */
.issue-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:24px}
.issue-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:28px 26px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.issue-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(12,74,62,.28)}
.issue-card .ico{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(12,74,62,.09);color:var(--c-brand);font-size:17px;
}
.issue-card h3{font-size:18px;font-weight:800;margin-bottom:10px}
.issue-card p{font-size:14.8px;color:var(--c-muted);line-height:1.75}
.issue-card.dark{background:var(--c-ink);border-color:var(--c-ink);color:#EFF3F1}
.issue-card.dark h3{color:#fff}
.issue-card.dark p{color:#AEBAB6}
.issue-card.dark .ico{background:rgba(200,241,53,.16);color:var(--c-accent)}
.issue-card:nth-child(1){grid-column:span 3}
.issue-card:nth-child(2){grid-column:span 3}
.issue-card:nth-child(3),
.issue-card:nth-child(4),
.issue-card:nth-child(5){grid-column:span 2}
@media (max-width:991px){
  .issue-card:nth-child(1),.issue-card:nth-child(2),
  .issue-card:nth-child(3),.issue-card:nth-child(4){grid-column:span 3}
  .issue-card:nth-child(5){grid-column:span 6}
}
@media (max-width:600px){
  .issue-grid{gap:16px}
  .issue-card:nth-child(n){grid-column:span 6}
}

/* ============ FAQ ============ */
.faq-acc .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-bottom:0;border-radius:0;overflow:hidden;
}
.faq-acc .accordion-item:first-of-type{border-radius:var(--r-md) var(--r-md) 0 0}
.faq-acc .accordion-item:last-of-type{border-bottom:1px solid var(--c-line);border-radius:0 0 var(--r-md) var(--r-md)}
.faq-acc .accordion-button{
  position:relative;background:var(--c-surface);color:var(--c-ink);font-size:17px;font-weight:700;
  padding:22px 56px 22px 24px;box-shadow:none;border-radius:0;line-height:1.5;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-brand);
  transform:scaleY(0);transform-origin:center;transition:transform .24s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-brand);background:var(--c-surface)}
.faq-acc .accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;background-image:none;
  width:26px;height:26px;display:grid;place-items:center;font-size:12px;color:var(--c-brand);
  border:1px solid var(--c-line);border-radius:50%;position:absolute;right:22px;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"\f068";background:var(--c-brand);color:#fff;transform:rotate(180deg)}
.faq-acc .accordion-body{padding:0 24px 24px;font-size:15.8px;color:var(--c-muted);line-height:1.85}

/* ============ 整块 CTA ============ */
.cta-full{background:var(--c-accent);color:var(--c-ink);padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1.35fr .65fr;gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(26px,3.4vw,42px);font-weight:900;letter-spacing:-.02em;line-height:1.14}
.cta-inner p{margin-top:16px;font-size:16.5px;color:#26332E;max-width:52ch;line-height:1.8}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch}
.btn-dark-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 26px;
  border-radius:var(--r-sm);background:var(--c-ink);color:#fff;font-weight:700;font-size:16px;border:1px solid var(--c-ink);
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.btn-dark-solid:hover{background:#000;color:#fff}
.btn-dark-solid .arw{transition:transform .22s var(--ease)}
.btn-dark-solid:hover .arw{transform:translateX(4px)}
.btn-dark-line{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 26px;
  border-radius:var(--r-sm);border:1px solid rgba(11,18,16,.35);color:var(--c-ink);font-weight:700;font-size:16px;
  transition:background .22s var(--ease);
}
.btn-dark-line:hover{background:rgba(11,18,16,.08);color:var(--c-ink)}
@media (max-width:991px){
  .cta-full{padding:56px 0}
  .cta-inner{grid-template-columns:1fr;gap:28px}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#E8EAE6;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.site-footer p{color:#A7B3AF;font-size:14.5px;line-height:1.85;max-width:380px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-ink)}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:#fff;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:#A7B3AF;font-size:14.5px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:#7E8B87;
}
.footer-bottom a{color:#7E8B87}
.footer-bottom a:hover{color:var(--c-accent)}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:36px}
}
@media (max-width:600px){
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr}
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
.hero-anim > *{opacity:0;transform:translateY(16px);animation:heroUp .55s var(--ease) forwards}
.hero-anim > *:nth-child(1){animation-delay:.05s}
.hero-anim > *:nth-child(2){animation-delay:.11s}
.hero-anim > *:nth-child(3){animation-delay:.17s}
.hero-anim > *:nth-child(4){animation-delay:.23s}
.hero-anim > *:nth-child(5){animation-delay:.29s}
@keyframes heroUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .hero-anim > *{opacity:1;transform:none}
}