/* roulang page: index */
:root{
  --brand:#FF5B2E;
  --brand-deep:#E13D12;
  --brand-light:#FF8A3D;
  --grad-brand:linear-gradient(118deg,#FF8A3D 0%,#FF5B2E 48%,#FF3D6B 100%);
  --ink:#10201D;
  --ink-2:#2A3B37;
  --muted:#6B7C78;
  --lime:#C9F04E;
  --teal:#12A594;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --surface-2:#F3EEE6;
  --line:#E7E1D8;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,32,29,.05);
  --sh-2:0 10px 28px rgba(16,32,29,.08);
  --sh-3:0 22px 48px rgba(255,91,46,.18);
  --nav-w:232px;
  --bs-primary:#FF5B2E;
  --bs-primary-rgb:255,91,46;
  --bs-body-bg:#FAF7F2;
  --bs-body-color:#2A3B37;
  --bs-border-color:#E7E1D8;
  --bs-border-radius:16px;
  --bs-link-color:#E13D12;
  --bs-link-hover-color:#FF5B2E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--brand-deep);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.16;font-weight:800;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(255,91,46,.55);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 布局骨架 ============ */
.app-shell{display:flex;min-height:100vh;align-items:flex-start;}
.side-nav{
  width:var(--nav-w);
  flex:0 0 var(--nav-w);
  position:sticky;
  top:0;
  height:100vh;
  background:var(--ink);
  display:flex;
  flex-direction:column;
  padding:26px 0 22px;
  transition:box-shadow .25s ease;
  z-index:1040;
}
.side-nav.is-scrolled{box-shadow:var(--sh-2);}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 20px 22px;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:16px;
}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  border-radius:13px;
  background:var(--grad-brand);
  position:relative;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(255,91,46,.32);
}
.brand-mark::before{
  content:"";
  position:absolute;
  width:22px;height:22px;
  border:2.4px solid rgba(255,255,255,.92);
  border-radius:50% 50% 50% 12%;
  border-bottom-color:transparent;
  border-right-color:transparent;
  transform:rotate(-38deg);
}
.brand-mark::after{
  content:"";
  position:absolute;
  width:7px;height:7px;
  background:#fff;
  border-radius:50%;
  right:11px;bottom:11px;
  opacity:.95;
}
.brand-text{display:flex;flex-direction:column;line-height:1.28;}
.brand-name{color:#fff;font-size:17px;font-weight:700;letter-spacing:-.2px;}
.brand-sub{color:rgba(255,255,255,.5);font-size:12px;letter-spacing:.4px;}
.nav-list{flex:1 1 auto;overflow-y:auto;padding:0 12px;}
.nav-list a{
  display:flex;
  align-items:center;
  gap:11px;
  height:44px;
  padding:0 14px;
  border-radius:12px;
  color:rgba(255,255,255,.78);
  font-size:15px;
  font-weight:500;
  position:relative;
  transition:background .22s ease,color .22s ease;
}
.nav-list a i{width:18px;text-align:center;font-size:15px;opacity:.85;}
.nav-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:0 4px 4px 0;background:var(--brand);
  transition:transform .22s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-list a:hover::before{transform:translateY(-50%) scaleY(1);}
.nav-list a.active{
  background:rgba(255,91,46,.14);
  color:#fff;
  font-weight:600;
}
.nav-list a.active::before{
  transform:translateY(-50%) scaleY(1.35);
  width:4px;
  background:var(--grad-brand);
}
.nav-foot{padding:18px 20px 0;border-top:1px solid rgba(255,255,255,.08);margin-top:14px;}
.btn-side{
  display:block;width:100%;text-align:center;
  padding:12px 16px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:14px;
  box-shadow:0 10px 22px rgba(255,91,46,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-side:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);box-shadow:var(--sh-3);}
.nav-note{margin-top:14px;font-size:12px;line-height:1.75;color:rgba(255,255,255,.42);}

.app-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.container-x{
  width:100%;
  max-width:1160px;
  margin:0 auto;
  padding:0 32px;
}
.top-bar{
  display:none;
  align-items:center;
  justify-content:space-between;
  height:64px;
  padding:0 18px;
  background:var(--ink);
  position:sticky;
  top:0;
  z-index:1050;
  transition:box-shadow .25s ease;
}
.top-bar.is-scrolled{box-shadow:var(--sh-2);}
.top-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:15px;}
.top-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;}
.top-brand .brand-mark::before{width:17px;height:17px;border-width:2px;}
.top-brand .brand-mark::after{width:5px;height:5px;right:9px;bottom:9px;}
.burger{
  width:42px;height:42px;border:0;border-radius:12px;
  background:rgba(255,255,255,.08);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;
  transition:background .22s ease;
}
.burger span{display:block;width:19px;height:2px;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.burger:hover{background:rgba(255,255,255,.16);}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,29,.55);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:1060;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:84vw;max-width:360px;
  background:var(--ink);
  transform:translateX(100%);
  transition:transform .28s cubic-bezier(.22,.61,.36,1);
  z-index:1070;
  display:flex;flex-direction:column;
  padding:22px 0 18px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer .nav-list{padding:0 14px;}
.drawer .nav-list a{height:52px;border-bottom:1px solid rgba(255,255,255,.07);border-radius:0;}
.drawer .nav-list a.active{background:rgba(255,91,46,.14);border-radius:0;}
.drawer .nav-foot{padding:18px 20px 0;}
.drawer-ver{margin-top:16px;font-size:12px;color:rgba(255,255,255,.35);}

/* ============ 通用组件 ============ */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:var(--surface-2);}
.section-head{margin-bottom:38px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.6px;
  color:var(--brand-deep);
  background:rgba(255,91,46,.1);
  padding:6px 14px;border-radius:var(--r-pill);
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:15.5px;max-width:720px;margin:10px 0 0;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.link-more{
  font-size:14.5px;font-weight:600;color:var(--brand-deep);
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
}
.link-more i{transition:transform .22s ease;}
.link-more:hover i{transform:translateX(4px);}

.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:15.5px;
  border:0;box-shadow:0 12px 26px rgba(255,91,46,.26);
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);box-shadow:var(--sh-3);}
.btn-brand:active{transform:translateY(1px);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12.5px 28px;border-radius:var(--r-pill);
  background:var(--surface);color:var(--ink);
  border:1.5px solid var(--ink);font-weight:600;font-size:15.5px;
  transition:background .22s ease,transform .22s ease;
}
.btn-outline:hover{background:var(--surface-2);color:var(--ink);transform:translateY(-2px);}
.btn-light-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 28px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.85);
  font-weight:700;font-size:15px;transition:background .22s ease,transform .22s ease;
}
.btn-light-outline:hover{background:#fff;color:var(--brand-deep);transform:translateY(-2px);}

.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;line-height:1.5;
  background:rgba(255,91,46,.11);color:var(--brand-deep);
}
.badge-lime{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;line-height:1.5;
  background:var(--lime);color:var(--ink);
}
.badge-teal{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;line-height:1.5;
  background:rgba(18,165,148,.14);color:#0C7A6D;
}
.dot{width:8px;height:8px;border-radius:50%;background:currentColor;opacity:.85;}

.card-x{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:26px;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.card-x:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}

/* ============ Hero ============ */
.hero-wrap{padding:38px 0 0;}
.hero{
  position:relative;
  border-radius:var(--r-xl);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  overflow:hidden;
  min-height:520px;
  display:flex;
  align-items:center;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.19;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(250,247,242,.97) 0%,rgba(250,247,242,.9) 46%,rgba(255,138,61,.22) 100%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.08fr .92fr;gap:44px;
  padding:56px 56px 52px;
  width:100%;
  align-items:center;
}
.hero-copy .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:12.5px;font-weight:700;color:var(--brand-deep);
  margin-bottom:20px;box-shadow:var(--sh-1);
}
.hero-copy h1{margin-bottom:16px;}
.hero-copy .hero-sub{
  font-size:17px;color:var(--muted);line-height:1.75;
  margin:0 0 26px;max-width:520px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px;}
.trust-badges span{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--surface-2);border:1px solid var(--line);
  font-size:12.5px;font-weight:600;color:var(--ink-2);
}
.trust-badges i{color:var(--brand);font-size:13px;}

.hero-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:26px 26px 22px;
  position:relative;
}
.hero-card .badge-lime{position:relative;margin-bottom:18px;}
.hero-card h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.hero-card .hc-note{font-size:13px;color:var(--muted);margin-bottom:20px;}
.metric{margin-bottom:19px;}
.metric:last-child{margin-bottom:6px;}
.metric-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.metric-num{font-size:30px;font-weight:800;color:var(--ink);line-height:1.15;}
.metric-num small{font-size:14px;font-weight:600;color:var(--muted);margin-left:3px;}
.metric-label{font-size:13px;color:var(--muted);font-weight:600;}
.bar{height:7px;border-radius:var(--r-pill);background:var(--surface-2);margin-top:10px;overflow:hidden;}
.bar > i{display:block;height:100%;border-radius:var(--r-pill);background:var(--grad-brand);}
.bar.teal > i{background:linear-gradient(90deg,#12A594,#5BD8C7);}

/* ============ 指标看板 ============ */
.kpi-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr 1fr;gap:22px;}
.kpi{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:26px;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.kpi .kpi-tag{font-size:12.5px;font-weight:700;letter-spacing:.4px;color:var(--muted);margin-bottom:12px;display:block;}
.kpi .kpi-num{font-size:44px;font-weight:800;line-height:1.1;color:var(--ink);}
.kpi .kpi-num small{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px;}
.kpi .kpi-desc{font-size:13.5px;color:var(--muted);margin:8px 0 14px;}
.kpi.primary{
  background:var(--grad-brand);border:0;color:#fff;
  box-shadow:0 18px 40px rgba(255,91,46,.26);
}
.kpi.primary .kpi-tag,.kpi.primary .kpi-desc{color:rgba(255,255,255,.82);}
.kpi.primary .kpi-num{color:#fff;}
.kpi.primary .kpi-num small{color:rgba(255,255,255,.8);}
.trend{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;
  background:var(--lime);color:var(--ink);
}
.trend.gray{background:var(--surface-2);color:var(--muted);}
.kpi.primary .trend{background:rgba(255,255,255,.2);color:#fff;}

/* ============ 服务矩阵 ============ */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.svc{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:26px;position:relative;
  display:flex;flex-direction:column;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.svc:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.svc.wide{grid-column:span 2;display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;}
.svc-idx{
  font-size:13px;font-weight:800;letter-spacing:1px;color:var(--brand);
  margin-bottom:12px;display:block;
}
.svc h3{font-size:19px;margin-bottom:10px;}
.svc p{font-size:14.5px;color:var(--muted);margin-bottom:18px;line-height:1.8;}
.svc .svc-link{
  margin-top:auto;font-size:14px;font-weight:700;color:var(--brand-deep);
  display:inline-flex;align-items:center;gap:7px;
}
.svc .svc-link i{transition:transform .22s ease;}
.svc .svc-link:hover i{transform:translateX(4px);}
.svc img{border-radius:var(--r-md);aspect-ratio:16/9;object-fit:cover;width:100%;}

/* ============ 最新动态 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;color:inherit;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);color:inherit;}
.news-thumb{position:relative;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.news-thumb .badge-soft{
  position:absolute;top:14px;left:14px;
  background:rgba(255,255,255,.94);color:var(--brand-deep);
  box-shadow:var(--sh-1);
}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{
  font-size:18px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .news-sum{
  font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);padding-top:14px;border-top:1px dashed var(--line);
}
.news-meta i{color:var(--brand);transition:transform .22s ease;}
.news-card:hover .news-meta i{transform:translateX(4px);}
.empty-state{
  border:1.6px dashed var(--line);background:var(--surface);
  border-radius:var(--r-lg);padding:52px 26px;text-align:center;
}
.empty-state .es-icon{
  width:120px;height:120px;margin:0 auto 20px;border-radius:var(--r-xl);
  background:var(--surface-2);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:42px;
}
.empty-state p{color:var(--muted);margin-bottom:20px;}

/* ============ 对比 ============ */
.cmp-wrap{position:relative;}
.cmp-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;position:relative;}
.cmp-card{border-radius:var(--r-lg);padding:30px;}
.cmp-card.old{background:var(--surface-2);border:1px solid var(--line);}
.cmp-card.new{
  background:var(--surface);
  border:2px solid transparent;
  background-image:linear-gradient(var(--surface),var(--surface)),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:var(--sh-3);
}
.cmp-card h3{font-size:19px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.cmp-card ul li{
  font-size:14.5px;color:var(--muted);line-height:1.85;
  padding-left:26px;position:relative;margin-bottom:10px;
}
.cmp-card ul li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:14px;height:14px;border-radius:50%;
  background:var(--surface-2);border:1.5px solid var(--line);
}
.cmp-card.new ul li::before{background:var(--lime);border-color:var(--lime);}
.cmp-card.new ul li{color:var(--ink-2);}
.cmp-badge{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;
  box-shadow:0 12px 30px rgba(255,91,46,.35);
  border:4px solid var(--bg);
  z-index:3;
}
.diff-list{margin-top:28px;display:flex;flex-direction:column;gap:12px;}
.diff-row{
  display:grid;grid-template-columns:170px 1fr 40px 1fr;
  align-items:center;gap:16px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px 22px;font-size:14.5px;
}
.diff-row:nth-child(even){background:var(--surface-2);}
.diff-row .d-label{font-weight:700;color:var(--ink);}
.diff-row .d-before{color:var(--muted);}
.diff-row .d-arrow{text-align:center;color:var(--brand);font-size:16px;}
.diff-row .d-after{font-weight:700;color:var(--brand-deep);}

/* ============ 口碑 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.voice{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:26px;display:flex;flex-direction:column;
}
.voice .quote{
  font-size:14.5px;line-height:1.85;color:var(--ink-2);margin-bottom:20px;flex:1 1 auto;
}
.voice .stars{color:var(--brand);font-size:13px;letter-spacing:2px;margin-bottom:14px;}
.voice .who{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px dashed var(--line);}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 44px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.who .w-name{font-size:14px;font-weight:700;color:var(--ink);}
.who .w-role{font-size:12.5px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;position:relative;
  transition:box-shadow .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad-brand);transform:scaleY(0);transform-origin:top;
  transition:transform .25s ease;
}
.faq-item.open{box-shadow:var(--sh-2);}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;text-align:left;border:0;background:transparent;
  padding:20px 62px 20px 26px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;position:relative;line-height:1.65;
}
.faq-q .fq-icon{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:30px;height:30px;border-radius:50%;
  background:rgba(255,91,46,.12);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .28s ease,background .22s ease;
}
.faq-item.open .fq-icon{transform:translateY(-50%) rotate(180deg);background:var(--brand);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a .faq-a-inner{
  padding:0 26px 22px;font-size:15px;line-height:1.85;color:var(--muted);
}

/* ============ 表单 ============ */
.form-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
.form-left h2{margin-bottom:16px;}
.form-left .fl-intro{color:var(--muted);font-size:15.5px;line-height:1.85;margin-bottom:24px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);margin-bottom:14px;line-height:1.7;
}
.check-list .ci{
  width:24px;height:24px;flex:0 0 24px;border-radius:50%;
  background:rgba(201,240,78,.9);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:3px;
}
.check-list li:nth-child(even) .ci{background:rgba(255,91,46,.16);color:var(--brand-deep);}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field .hint{font-size:12.5px;color:var(--muted);font-weight:400;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);color:var(--ink-2);
  padding:12px 15px;min-height:48px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.75;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(255,91,46,.18);
}
.field.error input,.field.error select,.field.error textarea{border-color:#D93025;}
.field .err-msg{display:none;font-size:13px;color:#D93025;margin-top:6px;}
.field.error .err-msg{display:block;}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);margin:6px 0 20px;line-height:1.7;}
.agree input{width:18px;height:18px;min-height:18px;margin-top:4px;accent-color:var(--brand);flex:0 0 18px;}
.btn-submit{
  width:100%;border:0;cursor:pointer;
  padding:15px 24px;border-radius:12px;
  background:var(--grad-brand);color:#fff;font-size:16px;font-weight:700;
  box-shadow:0 14px 30px rgba(255,91,46,.26);
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s ease,filter .22s ease;
}
.btn-submit:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:var(--sh-3);}
.btn-submit:active{transform:translateY(1px);}
.form-tip{margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center;}

/* ============ CTA 条 ============ */
.cta-strip{
  border-radius:var(--r-lg);
  background:var(--grad-brand);
  padding:38px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:0 20px 46px rgba(255,91,46,.24);
}
.cta-strip h2{color:#fff;font-size:clamp(20px,2.2vw,28px);margin-bottom:8px;}
.cta-strip p{color:rgba(255,255,255,.88);margin:0;font-size:14.5px;}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);margin-top:20px;}
.foot-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;
  padding:64px 0 44px;
}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand .brand-name{font-size:16px;}
.foot-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.55);max-width:320px;}
.foot-col h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:18px;letter-spacing:.3px;}
.foot-col ul li{margin-bottom:11px;}
.foot-col a{color:rgba(255,255,255,.62);font-size:13.5px;transition:color .22s ease;}
.foot-col a:hover{color:var(--brand);}
.foot-col .fi{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:12px;line-height:1.7;}
.foot-col .fi i{color:var(--brand);margin-top:5px;font-size:13px;}
.foot-bar{
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}
.foot-bar a{color:rgba(255,255,255,.5);}
.foot-bar a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--nav-w:200px;}
  .container-x{padding:0 26px;}
  .hero-grid{padding:44px 40px;gap:34px;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .svc-grid{grid-template-columns:repeat(2,1fr);}
  .svc.wide{grid-column:span 2;}
}
@media (max-width:991.98px){
  .side-nav{display:none;}
  .top-bar{display:flex;}
  .container-x{padding:0 22px;}
  .section{padding:64px 0;}
  .section.tight{padding:52px 0;}
  .hero{min-height:auto;}
  .hero-grid{grid-template-columns:1fr;padding:40px 30px;gap:30px;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .svc-grid{grid-template-columns:1fr;gap:16px;}
  .svc.wide{grid-template-columns:1fr;gap:20px;}
  .svc.wide img{order:-1;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cmp-grid{grid-template-columns:1fr;}
  .cmp-badge{position:static;transform:none;margin:0 auto 18px;}
  .diff-row{grid-template-columns:120px 1fr 30px 1fr;padding:14px 16px;font-size:13.5px;}
  .voice-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;gap:30px;}
  .foot-main{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px;}
  .cta-strip{padding:30px 28px;}
}
@media (max-width:575.98px){
  .container-x{padding:0 20px;}
  .section{padding:48px 0;}
  .section.tight{padding:44px 0;}
  h1{font-size:28px;}
  .hero-grid{padding:32px 20px;}
  .hero-copy .hero-sub{font-size:15.5px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn-brand,.hero-cta .btn-outline{width:100%;}
  .hero-card{padding:20px;}
  .kpi{padding:20px;}
  .kpi .kpi-num{font-size:36px;}
  .card-x,.svc,.voice,.form-card{padding:20px;}
  .news-grid{grid-template-columns:1fr;}
  .diff-row{grid-template-columns:1fr;gap:6px;padding:16px;}
  .diff-row .d-arrow{text-align:left;transform:rotate(90deg);width:20px;}
  .foot-main{grid-template-columns:1fr;gap:26px;}
  .foot-bar{flex-direction:column;align-items:flex-start;}
  .cta-strip{padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .btn-brand,.btn-outline{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --brand:#FF5B2E;
  --brand-deep:#E13D12;
  --brand-light:#FF8A3D;
  --grad-brand:linear-gradient(118deg,#FF8A3D 0%,#FF5B2E 48%,#FF3D6B 100%);
  --ink:#10201D;
  --ink-2:#2A3B37;
  --muted:#6B7C78;
  --lime:#C9F04E;
  --teal:#12A594;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --surface-2:#F3EEE6;
  --line:#E7E1D8;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,32,29,.05);
  --sh-2:0 10px 28px rgba(16,32,29,.08);
  --sh-3:0 22px 48px rgba(255,91,46,.18);
  --bs-primary:#FF5B2E;
  --bs-primary-rgb:255,91,46;
  --bs-body-bg:#FAF7F2;
  --bs-body-color:#2A3B37;
  --bs-border-color:#E7E1D8;
  --bs-border-radius:16px;
  --bs-link-color:#E13D12;
  --bs-link-hover-color:#FF5B2E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  letter-spacing:.1px;
}
img{max-width:100%;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2.5px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num,.kpi,.step-num{font-variant-numeric:tabular-nums;}

.container-x{max-width:1160px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding:88px 0;}
.section.alt{background:var(--surface-2);}
.section.white{background:var(--surface);}

/* ============ 品牌标识 ============ */
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  background:var(--grad-brand);position:relative;display:inline-block;
  box-shadow:0 8px 18px rgba(255,91,46,.32);
}
.brand-mark::before{
  content:"";position:absolute;inset:9px;border:2.5px solid rgba(255,255,255,.95);
  border-radius:50%;border-right-color:transparent;border-top-color:transparent;transform:rotate(45deg);
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--lime);transform:translate(-50%,-50%);
}
.brand-mark.sm{width:34px;height:34px;flex:0 0 34px;border-radius:11px;}
.brand-mark.sm::before{inset:8px;border-width:2px;}

/* ============ 桌面左侧导航 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:1040;
  background:var(--ink);color:#fff;align-items:center;justify-content:space-between;
  height:64px;padding:0 20px;transition:box-shadow .25s ease;
}
.topbar.is-scrolled{box-shadow:var(--sh-2);}
.topbar .brand-line{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar .brand-txt{font-size:15px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.hamburger{
  width:44px;height:44px;border:0;background:rgba(255,255,255,.08);border-radius:12px;
  display:grid;place-items:center;gap:4px;cursor:pointer;padding:11px;
}
.hamburger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.layout{display:flex;align-items:stretch;min-height:100vh;}
.side-nav{
  width:232px;flex:0 0 232px;background:var(--ink);
  position:sticky;top:0;height:100vh;
  display:flex;flex-direction:column;gap:20px;
  padding:26px 14px 20px;overflow-y:auto;
}
.side-brand{display:flex;align-items:center;gap:12px;padding:0 8px 18px;border-bottom:1px solid rgba(255,255,255,.08);}
.side-brand .brand-name{font-size:16px;font-weight:700;color:#fff;line-height:1.35;}
.side-brand .brand-sub{display:block;font-size:12px;color:rgba(255,255,255,.5);font-weight:400;margin-top:3px;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-list a{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding-left:20px;padding-right:12px;border-radius:12px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.78);
  transition:background .22s ease,color .22s ease;
}
.nav-list a i{font-size:14px;width:18px;text-align:center;color:rgba(255,255,255,.55);transition:color .22s ease;}
.nav-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(.2);
  width:3px;height:22px;border-radius:3px;background:var(--grad-brand);
  opacity:0;transition:opacity .22s ease,transform .22s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-list a:hover i{color:#fff;}
.nav-list a:hover::before{opacity:1;transform:translateY(-50%) scaleY(1);}
.nav-list a.active{background:rgba(255,91,46,.14);color:#fff;font-weight:600;}
.nav-list a.active i{color:var(--brand-light);}
.nav-list a.active::before{opacity:1;transform:translateY(-50%) scaleY(1.15);}

.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding:0 6px;}
.btn-grad-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);border:0;
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 10px 22px rgba(255,91,46,.28);cursor:pointer;
  transition:transform .22s ease,box-shadow .25s ease,filter .22s ease;
}
.btn-grad-pill:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.04);}
.btn-grad-pill:active{transform:translateY(1px);}
.side-note{font-size:12px;line-height:1.7;color:rgba(255,255,255,.45);padding:0 8px;}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,29,.5);z-index:1050;
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:1060;
  background:var(--ink);padding:22px 18px;display:flex;flex-direction:column;gap:16px;
  transform:translateX(105%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer .d-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12);}
.drawer .brand-line{display:flex;align-items:center;gap:10px;}
.drawer .brand-txt{font-size:15px;font-weight:700;color:#fff;line-height:1.35;}
.d-close{width:40px;height:40px;border-radius:12px;border:0;background:rgba(255,255,255,.1);color:#fff;font-size:16px;cursor:pointer;}
.d-close:hover{background:rgba(255,255,255,.18);}
.drawer .nav-list a{height:52px;border-radius:12px;border-bottom:1px solid rgba(255,255,255,.06);}
.drawer-foot{margin-top:auto;font-size:12px;line-height:1.9;color:rgba(255,255,255,.45);}

/* ============ 内容区 ============ */
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}

.page-hero{
  position:relative;overflow:hidden;background:var(--surface);
  padding:52px 0 44px;border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center right;
  opacity:.14;pointer-events:none;
}
.page-hero .container-x{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.55fr .9fr;gap:36px;align-items:end;}
.crumb{font-size:14px;color:var(--muted);margin-bottom:16px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.crumb a{color:var(--brand-deep);font-weight:500;}
.crumb a:hover{color:var(--brand);text-decoration:underline;}
.crumb span.sep{color:var(--line);}
h1.hero-title{
  font-size:clamp(28px,3.9vw,44px);font-weight:800;line-height:1.22;
  letter-spacing:-.4px;margin-bottom:16px;
}
.hero-lead{font-size:17px;color:var(--muted);max-width:640px;line-height:1.85;}
.badge-group{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;
  border-radius:var(--r-pill);font-size:13px;font-weight:700;
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-soft{background:var(--surface-2);color:var(--brand-deep);border:1px solid var(--line);}
.badge-dot{width:7px;height:7px;border-radius:50%;background:var(--ink);display:inline-block;}
.badge-soft .badge-dot{background:var(--brand);}

/* 板块标题 */
.sec-head{margin-bottom:40px;max-width:760px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand-deep);background:rgba(255,91,46,.1);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
h2.sec-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;margin-bottom:14px;}
.sec-desc{font-size:16px;color:var(--muted);}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.step:not(:last-child)::after{
  content:"";position:absolute;top:48px;right:-13px;width:8px;height:2px;background:var(--line);border-radius:2px;
}
.step-num{
  width:46px;height:46px;border-radius:var(--r-pill);background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:800;
  box-shadow:0 10px 20px rgba(255,91,46,.26);margin-bottom:18px;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.tile{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.tile:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.tile .thumb{position:relative;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden;}
.tile .thumb img{width:100%;height:100%;object-fit:cover;}
.tile .t-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tile h3{font-size:19px;font-weight:700;}
.tile p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.tile .t-foot{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;}
.tile:hover .t-foot i{transform:translateX(4px);}
.tile .t-foot i{transition:transform .22s ease;}

/* 图文分栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.split .fig{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);
  aspect-ratio:4/3;background:var(--surface-2);
}
.split .fig img{width:100%;height:100%;object-fit:cover;}
.check-list{display:flex;flex-direction:column;gap:16px;margin-top:22px;}
.check-list li{display:flex;gap:14px;align-items:flex-start;}
.check-list .ck{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:rgba(201,240,78,.9);
  color:var(--ink);display:grid;place-items:center;font-size:12px;margin-top:4px;
}
.check-list strong{display:block;font-size:16px;color:var(--ink);font-weight:700;margin-bottom:2px;}
.check-list span{font-size:14.5px;color:var(--muted);}
.mini-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px;}

/* 提示条 */
.notice-bar{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface-2);border-left:4px solid var(--brand);
  border-radius:var(--r-lg);padding:22px 26px;margin-top:36px;
}
.notice-bar i{color:var(--brand);font-size:18px;margin-top:5px;}
.notice-bar p{font-size:15px;color:var(--ink-2);line-height:1.85;}

/* 数据带 */
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
}
.stat-card.primary{background:var(--grad-brand);border:0;color:#fff;box-shadow:var(--sh-3);}
.stat-card .label{font-size:13px;font-weight:700;letter-spacing:.4px;opacity:.75;margin-bottom:10px;}
.stat-card .kpi{font-size:42px;font-weight:800;line-height:1;color:var(--ink);}
.stat-card.primary .kpi,.stat-card.primary .label{color:#fff;}
.stat-card .unit{font-size:13.5px;color:var(--muted);margin-top:10px;}
.stat-card.primary .unit{color:rgba(255,255,255,.85);}

/* FAQ */
.faq-wrap{display:flex;flex-direction:column;gap:12px;}
.faq-wrap .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-wrap .accordion-button{
  width:100%;background:var(--surface);border:0;box-shadow:none;
  font-size:16px;font-weight:600;color:var(--ink);
  padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--ink);background:var(--surface);}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:none;}
.faq-wrap .accordion-button:focus-visible{outline:2.5px solid var(--brand);outline-offset:-3px;}
.faq-wrap .accordion-button::after{display:none;}
.faq-icon{
  width:30px;height:30px;flex:0 0 30px;border-radius:50%;background:rgba(255,91,46,.12);
  color:var(--brand-deep);display:grid;place-items:center;font-size:14px;
  transition:transform .25s ease,background .25s ease;
}
.faq-wrap .accordion-button:not(.collapsed) .faq-icon{transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-wrap .accordion-item:has(.accordion-button:not(.collapsed)){border-left:4px solid var(--brand);}
.faq-wrap .accordion-body{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.88;}

/* CTA 条 */
.cta-band{
  background:var(--grad-brand);border-radius:var(--r-xl);
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);color:#fff;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.3vw,30px);font-weight:700;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.9);font-size:15px;}
.btn-ghost-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  background:#fff;color:var(--ink);font-size:15px;font-weight:700;border:0;white-space:nowrap;
  box-shadow:0 10px 24px rgba(16,32,29,.16);
  transition:transform .22s ease,box-shadow .25s ease;
}
.btn-ghost-white:hover{color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 16px 30px rgba(16,32,29,.2);}
.btn-ghost-white:active{transform:translateY(1px);}

/* 页脚 */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);padding:62px 0 0;margin-top:0;}
.foot-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand .brand-name{font-size:16px;font-weight:700;color:#fff;}
.foot-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.55);}
.foot-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.foot-col ul{display:flex;flex-direction:column;gap:11px;}
.foot-col ul a{font-size:14px;color:rgba(255,255,255,.68);}
.foot-col ul a:hover{color:var(--brand-light);text-decoration:underline;}
.fi{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:12px;}
.fi i{margin-top:5px;color:var(--brand-light);}
.foot-bar{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .container-x{max-width:100%;}
}
@media (max-width:1199.98px){
  .side-nav{width:200px;flex:0 0 200px;}
  .hero-grid{grid-template-columns:1fr;}
  .badge-group{justify-content:flex-start;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step:not(:last-child)::after{display:none;}
  .foot-main{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .topbar{display:flex;}
  .side-nav{display:none;}
  .layout{display:block;}
  .section{padding:64px 0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:28px;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .page-hero{padding:40px 0 34px;}
}
@media (max-width:767.98px){
  .container-x{padding:0 20px;}
  .section{padding:52px 0;}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .foot-main{grid-template-columns:1fr;}
  h1.hero-title{font-size:clamp(25px,6.4vw,32px);}
  .hero-lead{font-size:15.5px;}
  .cta-band h2{font-size:21px;}
}
@media (max-width:575.98px){
  .container-x{padding:0 16px;}
  .tile .t-body,.step,.stat-card{padding:20px;}
  .foot-bar{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: article */
:root{
  --brand:#FF5B2E;
  --brand-deep:#E13D12;
  --brand-light:#FF8A3D;
  --grad-brand:linear-gradient(118deg,#FF8A3D 0%,#FF5B2E 48%,#FF3D6B 100%);
  --ink:#10201D;
  --ink-2:#2A3B37;
  --muted:#6B7C78;
  --lime:#C9F04E;
  --teal:#12A594;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --surface-2:#F3EEE6;
  --line:#E7E1D8;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,32,29,.05);
  --sh-2:0 10px 28px rgba(16,32,29,.08);
  --sh-3:0 22px 48px rgba(255,91,46,.18);
  --nav-w:232px;
  --bs-primary:#FF5B2E;
  --bs-body-bg:#FAF7F2;
  --bs-body-color:#2A3B37;
  --bs-border-radius:16px;
  --bs-border-color:#E7E1D8;
  --bs-link-color:#E13D12;
  --bs-link-hover-color:#FF5B2E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-deep);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container-x{width:100%;max-width:1160px;margin:0 auto;padding:0 32px}

/* ============ 布局骨架 ============ */
.layout{display:flex;align-items:stretch;min-height:100vh}
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;background:var(--bg)}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:sticky;top:0;
  flex:0 0 var(--nav-w);width:var(--nav-w);
  height:100vh;
  background:var(--ink);
  display:flex;flex-direction:column;
  padding:26px 0 22px;
  overflow-y:auto;
  z-index:30;
  transition:box-shadow .25s ease;
}
.side-nav.scrolled,.topbar.scrolled{box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:12px;padding:0 20px 20px;border-bottom:1px solid rgba(255,255,255,.08);color:#fff}
.brand-mark{
  flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 8px 18px rgba(255,91,46,.35);
}
.brand-mark svg{width:24px;height:24px}
.brand-text{font-size:15px;font-weight:700;line-height:1.35;color:#fff;letter-spacing:-.2px}
.nav-list{display:flex;flex-direction:column;gap:4px;padding:16px 12px 0}
.nav-list a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px 0 18px;
  border-radius:12px;
  font-size:15px;font-weight:500;
  color:rgba(255,255,255,.78);
  transition:background .22s ease,color .22s ease;
}
.nav-list a i{width:18px;text-align:center;font-size:15px;opacity:.9}
.nav-list a::before{
  content:"";position:absolute;left:6px;top:50%;
  width:3px;height:0;border-radius:2px;background:var(--brand);
  transform:translateY(-50%);
  transition:height .22s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-list a:hover::before{height:18px}
.nav-list a.active{background:rgba(255,91,46,.14);color:#fff;font-weight:600}
.nav-list a.active::before{height:24px;background:var(--grad-brand)}
.side-foot{margin-top:auto;padding:22px 20px 0;border-top:1px solid rgba(255,255,255,.08)}
.side-foot .btn-grad{width:100%;justify-content:center}
.side-note{margin-top:16px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.5)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border:none;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .22s ease;
}
.btn-grad{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px rgba(255,91,46,.28)}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.04)}
.btn-grad:active{transform:translateY(1px)}
.btn-outline{background:#fff;color:var(--ink);border:1.5px solid var(--ink)}
.btn-outline:hover{background:var(--surface-2);color:var(--ink);transform:translateY(-2px)}
.btn-ghost-light{background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px rgba(16,32,29,.16)}
.btn-ghost-light:hover{color:var(--brand-deep);transform:translateY(-2px)}
.btn-line{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-line:hover{border-color:var(--brand);color:var(--brand-deep)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep)}
.text-link i{transition:transform .22s ease}
.text-link:hover i{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge-soft,.badge-lime,.badge-plain{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;line-height:1;
}
.badge-soft{background:rgba(255,91,46,.12);color:var(--brand-deep)}
.badge-lime{background:var(--lime);color:var(--ink)}
.badge-plain{background:rgba(255,255,255,.16);color:#fff}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);display:inline-block}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;
  position:sticky;top:0;z-index:40;
  height:64px;align-items:center;justify-content:space-between;
  gap:12px;padding:0 18px;
  background:var(--ink);color:#fff;
  transition:box-shadow .25s ease;
}
.topbar .brand{padding:0;border:none;gap:10px}
.topbar .brand-mark{flex:0 0 32px;width:32px;height:32px;border-radius:10px}
.topbar .brand-mark svg{width:20px;height:20px}
.topbar .brand-text{font-size:14px}
.burger{
  flex:0 0 44px;width:44px;height:44px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid rgba(255,255,255,.18);border-radius:12px;
  cursor:pointer;transition:background .22s ease;
}
.burger:hover{background:rgba(255,255,255,.08)}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 抽屉 ============ */
.mask{position:fixed;inset:0;background:rgba(16,32,29,.55);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:55}
.mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;height:100%;
  width:84vw;max-width:360px;
  background:var(--ink);
  display:flex;flex-direction:column;
  padding:22px 0 18px;
  transform:translateX(-102%);
  transition:transform .28s cubic-bezier(.22,.61,.36,1);
  overflow-y:auto;z-index:60;
}
.drawer.open{transform:translateX(0)}
.drawer .brand{padding:0 18px 18px;border-bottom:1px solid rgba(255,255,255,.1)}
.drawer .nav-list{padding:14px 12px 0}
.drawer .nav-list a{height:52px;border-radius:10px;font-size:15.5px}
.drawer .nav-list a::after{content:"";position:absolute;left:18px;right:18px;bottom:0;height:1px;background:rgba(255,255,255,.07)}
.drawer .side-foot{padding:20px 18px 0}
.drawer .ver{margin-top:14px;font-size:12px;color:rgba(255,255,255,.42)}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:30px 0 46px;
  color:#fff;
  background-image:linear-gradient(118deg,rgba(255,138,61,.9) 0%,rgba(255,91,46,.88) 46%,rgba(255,61,107,.86) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.article-hero::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.12);pointer-events:none;
}
.crumb{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.82)}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.7}
.crumb .now{max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#fff;font-weight:600}
.article-hero h1{
  position:relative;z-index:2;
  margin:20px 0 18px;
  font-size:clamp(28px,3.4vw,40px);
  font-weight:800;line-height:1.3;letter-spacing:-.2px;
  color:#fff;max-width:900px;
}
.hero-tags{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.meta-row{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  font-size:14px;color:rgba(255,255,255,.85);
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{font-size:13px;opacity:.9}

/* ============ 正文区 ============ */
.article-section{padding:56px 0 10px}
.article-grid{display:grid;grid-template-columns:200px minmax(0,1fr);gap:32px;align-items:start}
.toc-card{
  position:sticky;top:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:18px 16px;
  box-shadow:var(--sh-1);
}
.toc-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.toc-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.04em}
.toc-toggle{
  display:none;width:30px;height:30px;border-radius:9px;border:1px solid var(--line);
  background:var(--surface-2);color:var(--ink);cursor:pointer;line-height:1;
}
.toc-list{display:flex;flex-direction:column;gap:2px;margin-top:12px;max-height:62vh;overflow:auto}
.toc-list a{
  display:block;padding:6px 10px;
  border-left:3px solid transparent;border-radius:0 8px 8px 0;
  font-size:14px;line-height:1.5;color:var(--ink-2);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--surface-2);color:var(--brand-deep)}
.toc-list a.active{border-left-color:var(--brand);background:rgba(255,91,46,.08);color:var(--brand-deep);font-weight:600}
.toc-list a.lv3{padding-left:22px;font-size:13px;color:var(--muted)}
.toc-empty{margin-top:10px;font-size:13px;color:var(--muted)}

.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:36px 40px;
  box-shadow:var(--sh-1);
  font-size:16px;
  color:var(--ink-2);
}
.article-body>p{margin:0 0 1.2em;line-height:1.9}
.article-body h2{
  position:relative;
  margin:2em 0 .8em;padding-left:14px;
  font-size:clamp(21px,2.2vw,26px);font-weight:700;line-height:1.35;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--grad-brand);
}
.article-body h3{margin:1.6em 0 .6em;font-size:20px;font-weight:600;color:var(--ink)}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em;line-height:1.9}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.35em 0}
.article-body li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:1.4em 0;padding:20px 22px;
  background:var(--surface-2);
  border-left:4px solid var(--brand);
  border-radius:12px;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.4em 0}
.article-body figure{margin:1.4em 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}
.article-body table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;margin:1.4em 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{background:var(--surface-2);color:var(--ink);font-weight:700}
.article-body a{color:var(--brand-deep);text-decoration:underline}
.article-body a:hover{color:var(--brand)}
.article-body strong{color:var(--ink)}
.article-body hr{border:none;height:1px;background:var(--line);margin:2em 0}

/* 空态 */
.empty-card{
  margin:8px 0;
  padding:48px 28px;text-align:center;
  border:2px dashed var(--line);border-radius:var(--r-lg);
  background:var(--surface-2);
}
.empty-card .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:var(--grad-brand);display:grid;place-items:center;color:#fff;font-size:26px;
}
.empty-card h2{font-size:22px;color:var(--ink);margin:0 0 10px}
.empty-card p{font-size:15px;color:var(--muted);margin:0 0 20px}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:26px 0 0}
.tag-row .tag-label{font-size:13px;color:var(--muted);font-weight:600}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}

/* 上一篇 / 下一篇 */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.pn-card{
  display:flex;flex-direction:column;gap:8px;
  padding:20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.pn-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.pn-card .pn-label{font-size:12.5px;font-weight:700;color:var(--muted)}
.pn-card .pn-title{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.6}
.pn-card .pn-more{font-size:13px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.pn-card:hover .pn-more i{transform:translateX(4px)}
.pn-card .pn-more i{transition:transform .22s ease}

/* ============ 阅读提示 ============ */
.tips-section{padding:64px 0}
.tips-section .sec-head{max-width:720px;margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink);line-height:1.3}
.sec-head p{margin-top:12px;font-size:15.5px;color:var(--muted)}
.tips-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tip-card{
  position:relative;
  padding:26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.tip-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.tip-idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:26px;border-radius:var(--r-pill);
  background:rgba(255,91,46,.12);color:var(--brand-deep);
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
}
.tip-card h3{margin:16px 0 10px;font-size:18px;font-weight:600;color:var(--ink)}
.tip-card p{font-size:14.5px;color:var(--muted)}

/* ============ 相关内容 ============ */
.related-section{padding:0 0 72px;background:var(--surface-2);padding-top:64px}
.rel-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.rel-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.rel-media{position:relative;aspect-ratio:16/9;background:var(--surface-2)}
.rel-media img{width:100%;height:100%;object-fit:cover}
.rel-media .badge-soft{position:absolute;left:12px;top:12px;background:#fff;box-shadow:var(--sh-1)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rel-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.rel-more i{transition:transform .22s ease}
.rel-card:hover .rel-more i{transform:translateX(4px)}

/* ============ 底部 CTA ============ */
.cta-section{padding:0 0 72px;background:var(--surface-2)}
.cta-box{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:36px 40px;border-radius:var(--r-xl);
  background:var(--grad-brand);
  box-shadow:var(--sh-3);
  color:#fff;
}
.cta-box h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff}
.cta-box p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);max-width:560px}

/* ============ 返回入口 ============ */
.back-row{display:flex;justify-content:center;margin:32px 0 0}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:rgba(255,255,255,.7);padding:56px 0 0;margin-top:auto}
.foot-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.foot-brand .brand-mark{flex:0 0 36px;width:36px;height:36px}
.foot-brand .brand-name{font-size:16px;font-weight:700;color:#fff;line-height:1.35}
.foot-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.foot-col h4{margin-bottom:14px;font-size:15px;font-weight:700;color:#fff}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.7)}
.foot-col a:hover{color:var(--brand)}
.fi{display:flex;gap:10px;font-size:14px;margin-bottom:10px;color:rgba(255,255,255,.7)}
.fi i{color:var(--brand-light);margin-top:5px;font-size:13px}
.foot-bar{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
  padding:18px 0 22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .container-x{max-width:1080px}
}
@media (max-width:1199.98px){
  :root{--nav-w:200px}
  .side-nav{--nav-w:200px}
  .article-body{padding:32px 30px}
}
@media (max-width:991.98px){
  .side-nav{display:none}
  .topbar{display:flex}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:20px}
  .toc-card{position:static;top:auto;order:-1}
  .toc-toggle{display:grid;place-items:center}
  .toc-list{display:none;max-height:none}
  .toc-card.open .toc-list{display:flex}
  .toc-card.open .toc-empty{display:block}
  .tips-grid{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:1fr 1fr}
  .foot-main{grid-template-columns:1fr 1fr;gap:28px}
  .article-hero{padding:26px 0 38px}
  .article-section{padding:44px 0 8px}
  .tips-section{padding:52px 0}
  .related-section{padding-top:52px}
  .cta-section{padding-bottom:60px}
}
@media (max-width:767.98px){
  .container-x{padding:0 20px}
  .tips-grid,.rel-grid,.pn-grid{grid-template-columns:1fr}
  .cta-box{padding:28px 24px}
  .cta-box .btn{width:100%}
  .article-body{padding:26px 22px}
  .badge-plain{display:none}
}
@media (max-width:575.98px){
  :root{--nav-w:180px}
  .container-x{padding:0 20px}
  .article-hero h1{font-size:28px}
  .foot-main{grid-template-columns:1fr}
  .article-body{padding:22px 18px;border-radius:var(--r-md)}
  .article-body h2{font-size:21px}
  .meta-row{font-size:13px}
  .crumb .now{max-width:200px}
  .foot-bar{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#FF5B2E;
  --brand-deep:#E13D12;
  --brand-light:#FF8A3D;
  --grad-brand:linear-gradient(118deg,#FF8A3D 0%,#FF5B2E 48%,#FF3D6B 100%);
  --ink:#10201D;
  --ink-2:#2A3B37;
  --muted:#6B7C78;
  --lime:#C9F04E;
  --teal:#12A594;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --surface-2:#F3EEE6;
  --line:#E7E1D8;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,32,29,.05);
  --sh-2:0 10px 28px rgba(16,32,29,.08);
  --sh-3:0 22px 48px rgba(255,91,46,.18);
  --bs-primary:#FF5B2E;
  --bs-primary-rgb:255,91,46;
  --bs-body-bg:#FAF7F2;
  --bs-body-color:#10201D;
  --bs-border-color:#E7E1D8;
  --bs-border-radius:16px;
  --bs-link-color:#E13D12;
  --bs-link-hover-color:#FF5B2E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--brand-deep);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{letter-spacing:-.2px;color:var(--ink);}
h1{font-size:clamp(28px,3.6vw,42px);line-height:1.2;font-weight:800;margin:0 0 14px;}
h2{font-size:clamp(23px,2.4vw,32px);line-height:1.3;font-weight:700;margin:0 0 12px;}
h3{font-size:20px;line-height:1.4;font-weight:600;margin:0 0 10px;}
p{margin:0 0 14px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 布局 ============ */
.layout{display:flex;min-height:100vh;align-items:stretch;}
.side-nav{
  width:232px;flex:0 0 232px;background:var(--ink);color:#fff;
  position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
  padding:26px 16px 22px;z-index:40;transition:box-shadow .25s ease;
}
.side-nav.is-scrolled{box-shadow:var(--sh-2);}
.main-col{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.container-x{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:11px;padding:0 6px;margin-bottom:26px;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  position:relative;flex:0 0 38px;box-shadow:var(--sh-3);
}
.brand-mark::before{
  content:"";position:absolute;inset:9px 8px;border-radius:50% 50% 46% 46%/58% 58% 42% 42%;
  border:2.4px solid rgba(255,255,255,.95);border-bottom-color:transparent;transform:rotate(18deg);
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;margin:-2.5px 0 0 -2.5px;
  border-radius:50%;background:#fff;
}
.brand-name{font-size:17px;font-weight:700;color:#fff;line-height:1.3;letter-spacing:0;}

/* ============ 侧边导航 ============ */
.nav-list{display:flex;flex-direction:column;gap:4px;margin:0;padding:0;flex:1 1 auto;}
.nav-list a{
  position:relative;display:flex;align-items:center;gap:10px;height:44px;padding:0 14px 0 20px;
  border-radius:12px;font-size:15px;font-weight:500;color:rgba(255,255,255,.78);
  transition:background .22s ease,color .22s ease;
}
.nav-list a i{font-size:14px;width:16px;text-align:center;opacity:.9;}
.nav-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(.2);
  width:3px;height:44px;border-radius:0 4px 4px 0;background:var(--grad-brand);
  opacity:0;transition:opacity .22s ease,transform .22s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-list a:hover::before{opacity:1;transform:translateY(-50%) scaleY(.6);}
.nav-list a.active{background:rgba(255,91,46,.14);color:#fff;font-weight:600;}
.nav-list a.active::before{opacity:1;transform:translateY(-50%) scaleY(1);width:4px;}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;margin:20px 4px 0;
  height:46px;border-radius:var(--r-pill);background:var(--grad-brand);color:#fff;
  font-size:15px;font-weight:600;box-shadow:0 12px 26px rgba(255,91,46,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.side-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 18px 34px rgba(255,91,46,.34);}
.side-cta:active{transform:translateY(1px);}
.side-note{margin:16px 8px 0;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.5);}

/* ============ 移动端顶栏 ============ */
.top-bar{
  display:none;position:sticky;top:0;z-index:60;height:64px;background:var(--ink);
  align-items:center;justify-content:space-between;padding:0 18px;transition:box-shadow .25s ease;
}
.top-bar.is-scrolled{box-shadow:var(--sh-2);}
.top-bar .brand{margin:0;padding:0;}
.top-bar .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;box-shadow:none;}
.top-bar .brand-mark::before{inset:7px 6px;}
.burger{
  width:44px;height:44px;border:0;background:rgba(255,255,255,.08);border-radius:12px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:19px;height:2px;border-radius:2px;background:#fff;transition:transform .25s ease,opacity .25s ease;}
.burger.on span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.on span:nth-child(2){opacity:0;}
.burger.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:var(--ink);z-index:70;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;padding:22px 16px;overflow-y:auto;
}
.mobile-panel.open{transform:translateX(0);}
.mobile-panel .nav-list a{height:52px;border-bottom:1px solid rgba(255,255,255,.07);border-radius:8px;}
.mobile-panel .nav-list a.active{border-radius:10px;}
.mask{position:fixed;inset:0;background:rgba(16,32,29,.5);opacity:0;visibility:hidden;transition:opacity .28s ease;z-index:65;}
.mask.on{opacity:1;visibility:visible;}

/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;padding:52px 0 46px;min-height:270px;
  background-image:linear-gradient(112deg,rgba(255,138,61,.9) 0%,rgba(255,91,46,.86) 46%,rgba(255,61,107,.82) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.cat-hero .container-x{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:18px;}
.crumbs a{color:rgba(255,255,255,.9);}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs .sep{opacity:.6;}
.cat-hero h1{color:#fff;text-shadow:0 2px 16px rgba(120,32,0,.24);max-width:760px;}
.cat-hero .lead{max-width:660px;color:rgba(255,255,255,.94);font-size:17px;line-height:1.8;margin:0 0 22px;}
.hero-flex{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);
  color:#fff;font-size:13px;font-weight:600;backdrop-filter:blur(2px);
}
.hero-badge i{font-size:13px;}

/* ============ 通用板块 ============ */
.section{padding:78px 0;}
.section.tint{background:var(--surface-2);}
.section.plain{background:var(--bg);}
.sec-head{max-width:720px;margin-bottom:38px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:#FFEDE4;color:var(--brand-deep);font-size:12.5px;font-weight:700;margin-bottom:14px;
}
.sec-head p{color:var(--muted);font-size:15.5px;margin:0;}

/* ============ 图文交替 ============ */
.alt-list{display:flex;flex-direction:column;gap:26px;}
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.alt-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.alt-row.rev .alt-media{order:2;}
.alt-media{position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--surface-2);}
.alt-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);}
.alt-media .index-tag{
  position:absolute;left:14px;top:14px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:12.5px;font-weight:700;
  display:inline-flex;align-items:center;gap:6px;
}
.alt-body h3{margin-bottom:10px;}
.alt-body p{color:var(--muted);font-size:15.5px;margin-bottom:14px;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;background:#F1FCD3;color:#3E5310;
}
.chip.orange{background:#FFEDE4;color:var(--brand-deep);}
.chip .dot{width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.75;}
.point-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.point-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);line-height:1.7;}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;width:15px;height:15px;border-radius:50%;
  background:rgba(255,91,46,.12);
}
.point-list li::after{
  content:"";position:absolute;left:4.5px;top:13.5px;width:6px;height:3px;
  border-left:1.8px solid var(--brand-deep);border-bottom:1.8px solid var(--brand-deep);
  transform:rotate(-45deg);
}

/* ============ 速查条 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.quick-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);position:relative;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quick-card .qn{
  font-size:13px;font-weight:800;color:var(--brand-deep);font-variant-numeric:tabular-nums;
  letter-spacing:1px;margin-bottom:10px;display:block;
}
.quick-card h3{font-size:18px;margin-bottom:8px;}
.quick-card p{font-size:14.5px;color:var(--muted);margin:0;}

/* ============ 提示条 ============ */
.tips{
  display:flex;gap:18px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-left:5px solid var(--brand);
  border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--sh-1);
}
.tips .ti{
  flex:0 0 42px;width:42px;height:42px;border-radius:14px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;
  box-shadow:var(--sh-3);
}
.tips h3{font-size:18px;margin-bottom:6px;}
.tips p{margin:0;color:var(--muted);font-size:15px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:var(--surface);border:1px solid var(--line)!important;border-radius:var(--r-md)!important;
  overflow:hidden;margin-bottom:12px;box-shadow:var(--sh-1);
}
.accordion-button{
  position:relative;width:100%;padding:18px 60px 18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  background:var(--surface);border:0;box-shadow:none!important;text-align:left;line-height:1.6;
}
.accordion-button:not(.collapsed){color:var(--brand-deep);background:#FFFAF7;box-shadow:inset 4px 0 0 var(--brand)!important;}
.accordion-button::after{
  content:"";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;background:#FFEDE4;
  background-image:none!important;transition:background-color .25s ease,margin .25s ease;
}
.accordion-button::before{
  content:"";position:absolute;right:26.5px;top:50%;width:7px;height:7px;z-index:2;
  border-right:2px solid var(--brand-deep);border-bottom:2px solid var(--brand-deep);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::before{transform:translateY(-20%) rotate(225deg);}
.accordion-button:focus{box-shadow:inset 0 0 0 2px rgba(255,91,46,.35)!important;}
.accordion-body{padding:4px 26px 22px;color:var(--muted);font-size:15px;line-height:1.85;}
.accordion-body p:last-child{margin-bottom:0;}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--grad-brand);border-radius:var(--r-lg);padding:36px 38px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:190px;height:190px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-band h2{color:#fff;margin:0 0 8px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.92);margin:0;font-size:15.5px;position:relative;z-index:2;}
.btn-white{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 28px;border-radius:var(--r-pill);
  background:#fff;color:var(--ink);font-size:15.5px;font-weight:700;border:1.5px solid #fff;
  position:relative;z-index:2;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
}
.btn-white:hover{color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 16px 30px rgba(90,20,0,.22);background:#FFFDFB;}
.btn-white:active{transform:translateY(1px);}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 26px;border-radius:var(--r-pill);
  background:transparent;border:1.5px solid var(--ink);color:var(--ink);font-size:15.5px;font-weight:600;
  transition:background .22s ease,transform .22s ease;
}
.btn-line:hover{background:var(--surface-2);color:var(--ink);transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);margin-top:0;padding:56px 0 26px;}
.site-foot .foot-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;
  padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1);
}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px;}
.foot-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;box-shadow:none;}
.foot-brand .brand-mark::before{inset:8px 7px;}
.foot-brand .brand-name{font-size:16.5px;font-weight:700;color:#fff;}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin:0;max-width:330px;}
.foot-col h4{font-size:15px;color:#fff;font-weight:700;margin:0 0 16px;}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.foot-col ul a,.foot-col .fi span{font-size:14px;color:rgba(255,255,255,.68);}
.foot-col ul a:hover{color:var(--brand);text-decoration:underline;}
.foot-col .fi{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:12px;}
.foot-col .fi i{color:var(--brand-light);font-size:14px;margin-top:5px;}
.foot-bar{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container-x{padding:0 28px;}
  .alt-row{gap:24px;padding:24px;}
}
@media (max-width:991.98px){
  .side-nav{display:none;}
  .top-bar{display:flex;}
  .section{padding:58px 0;}
  .cat-hero{padding:40px 0 36px;min-height:0;}
  .alt-row{grid-template-columns:1fr;gap:20px;}
  .alt-row.rev .alt-media{order:0;}
  .quick-grid{grid-template-columns:1fr 1fr;}
  .site-foot .foot-main{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .container-x{padding:0 20px;}
  .cat-hero .lead{font-size:15.5px;}
  .quick-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 24px;}
  .btn-white,.btn-line{width:100%;justify-content:center;}
  .tips{padding:20px;gap:14px;}
}
@media (max-width:575.98px){
  .section{padding:46px 0;}
  .alt-row{padding:20px;}
  .alt-body h3{font-size:18px;}
  .site-foot .foot-main{grid-template-columns:1fr;gap:26px;}
  .foot-bar{flex-direction:column;}
  h1{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .alt-row:hover,.quick-card:hover,.btn-white:hover,.btn-line:hover,.side-cta:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --brand:#FF5B2E;
  --brand-deep:#E13D12;
  --brand-light:#FF8A3D;
  --grad-brand:linear-gradient(118deg,#FF8A3D 0%,#FF5B2E 48%,#FF3D6B 100%);
  --ink:#10201D;
  --ink-2:#2A3B37;
  --muted:#6B7C78;
  --lime:#C9F04E;
  --teal:#12A594;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --surface-2:#F3EEE6;
  --line:#E7E1D8;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,32,29,.05);
  --sh-2:0 10px 28px rgba(16,32,29,.08);
  --sh-3:0 22px 48px rgba(255,91,46,.18);
  --side-w:232px;

  --bs-primary:#FF5B2E;
  --bs-primary-rgb:255,91,46;
  --bs-body-bg:#FAF7F2;
  --bs-body-color:#2A3B37;
  --bs-border-color:#E7E1D8;
  --bs-border-radius:16px;
  --bs-link-color:#E13D12;
  --bs-link-hover-color:#FF5B2E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.32;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}

/* ---------- 布局骨架 ---------- */
.app-shell{display:flex;min-height:100vh;}
.side-nav{
  width:var(--side-w);
  flex:0 0 var(--side-w);
  background:var(--ink);
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
  padding:24px 16px 18px;
  overflow-y:auto;
  z-index:30;
  transition:box-shadow .25s ease;
}
.side-nav.is-scrolled{box-shadow:var(--sh-2);}
.app-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.container-x{width:100%;max-width:1160px;margin:0 auto;padding:0 32px;}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:center;gap:12px;padding:0 6px;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--grad-brand);position:relative;box-shadow:var(--sh-3);
}
.brand-mark::before{
  content:"";position:absolute;left:9px;top:13px;width:22px;height:13px;
  border:2.4px solid #fff;border-bottom:0;border-radius:13px 13px 0 0;transform:rotate(-9deg);
}
.brand-mark::after{
  content:"";position:absolute;left:10px;bottom:11px;width:20px;height:2.6px;
  background:#fff;border-radius:2px;transform:rotate(-9deg);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;line-height:1.3;color:#fff;}
.brand-sm .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;}
.brand-sm .brand-mark::before{left:8px;top:11px;width:18px;height:11px;}
.brand-sm .brand-mark::after{left:8px;bottom:9px;width:17px;}
.brand-sm .brand-text{font-size:15px;color:var(--ink);}

/* ---------- 左侧主导航 ---------- */
.nav-list{display:flex;flex-direction:column;gap:4px;margin-top:26px;}
.nav-list a{
  position:relative;display:flex;align-items:center;gap:11px;
  min-height:44px;padding:8px 16px 8px 20px;border-radius:12px;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;line-height:1.45;
  transition:background .22s ease,color .22s ease;
}
.nav-list a i{width:18px;font-size:14px;text-align:center;opacity:.9;flex:0 0 18px;}
.nav-list a::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:opacity .22s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-list a:hover::before{opacity:.55;}
.nav-list a.active{background:rgba(255,91,46,.14);color:#fff;font-weight:600;}
.nav-list a.active::before{opacity:1;width:4px;}

.side-foot{margin-top:auto;padding-top:26px;}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--r-pill);background:var(--grad-brand);
  color:#fff;font-size:15px;font-weight:600;box-shadow:var(--sh-3);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),filter .25s ease;
}
.side-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);}
.side-cta:active{transform:translateY(1px);}
.side-meta{margin-top:16px;font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.42);padding:0 6px;}
.side-meta span{display:block;}

/* ---------- 移动顶栏 ---------- */
.topbar{
  display:none;align-items:center;justify-content:space-between;gap:16px;
  position:sticky;top:0;z-index:40;height:64px;padding:0 20px;
  background:rgba(250,247,242,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.topbar.is-scrolled{box-shadow:var(--sh-2);}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;padding:0;box-shadow:var(--sh-1);
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.offcanvas.mnav{background:var(--ink);color:#fff;width:84vw;max-width:360px;border:0;}
.mnav-head{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 0;}
.mnav .nav-list{margin-top:24px;padding:0 12px;}
.mnav .nav-list a{min-height:52px;border-radius:12px;border-bottom:1px solid rgba(255,255,255,.07);}
.mnav .nav-list a::before{border-radius:0 3px 3px 0;}
.mnav-foot{padding:24px 20px 28px;border-top:1px solid rgba(255,255,255,.08);margin-top:24px;}
.mnav-close{background:transparent;border:1px solid rgba(255,255,255,.2);color:#fff;width:38px;height:38px;border-radius:10px;cursor:pointer;}

/* ---------- Hero ---------- */
.hero-wrap{padding-top:28px;}
.page-hero{
  position:relative;border-radius:var(--r-xl);overflow:hidden;background:var(--ink);
  min-height:300px;display:flex;align-items:center;
}
.ph-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.42;}
.ph-overlay{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,32,29,.94) 0%,rgba(16,32,29,.76) 46%,rgba(255,91,46,.44) 100%);
}
.ph-inner{position:relative;z-index:2;width:100%;padding:44px 40px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:18px;}
.crumbs a{color:rgba(255,255,255,.75);}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs i{font-size:10px;opacity:.7;}
.ph-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;}
.pill{
  display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.2px;white-space:nowrap;
}
.pill-soft{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.2);}
.page-hero h1{
  color:#fff;font-size:clamp(28px,3.5vw,42px);line-height:1.18;font-weight:800;
  letter-spacing:-.4px;margin:16px 0 14px;max-width:20em;
}
.ph-lead{color:rgba(255,255,255,.82);font-size:16.5px;max-width:34em;}
.ph-badges{display:flex;flex-direction:column;gap:12px;}
.ph-badge{
  min-width:186px;padding:14px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
}
.ph-badge b{display:block;font-size:26px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;line-height:1.2;}
.ph-badge span{font-size:13px;color:rgba(255,255,255,.76);}

/* ---------- 板块 ---------- */
.sec{padding:96px 0 0;}
.sec-head{max-width:640px;margin-bottom:36px;}
.sec-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand-deep);letter-spacing:.6px;margin-bottom:12px;
}
.sec-head .kicker::before{content:"";width:18px;height:3px;border-radius:3px;background:var(--grad-brand);}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);letter-spacing:-.3px;}
.sec-head p{margin-top:12px;color:var(--muted);}

/* ---------- 分栏：粘性标签 + 内容块 ---------- */
.split{display:grid;grid-template-columns:224px minmax(0,1fr);gap:36px;align-items:start;}
.split-nav{
  position:sticky;top:24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:18px;box-shadow:var(--sh-1);
}
.split-nav h3{font-size:14px;color:var(--muted);font-weight:600;letter-spacing:.4px;padding:0 10px 10px;}
.split-nav ul{display:flex;flex-direction:column;gap:2px;}
.split-nav a{
  position:relative;display:block;padding:11px 12px 11px 18px;border-radius:12px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;line-height:1.5;
  transition:background .22s ease,color .22s ease;
}
.split-nav a::before{
  content:"";position:absolute;left:6px;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:opacity .22s ease;
}
.split-nav a:hover{background:var(--surface-2);color:var(--ink);}
.split-nav a.active{background:rgba(255,91,46,.09);color:var(--brand-deep);font-weight:600;}
.split-nav a.active::before{opacity:1;}

.split-body{display:flex;flex-direction:column;gap:22px;}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s cubic-bezier(.22,.61,.36,1);
  scroll-margin-top:100px;
}
.panel:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.panel-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px;}
.panel-num{
  flex:0 0 42px;width:42px;height:42px;border-radius:14px;background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;box-shadow:var(--sh-3);
}
.panel-head h3{font-size:20px;}
.panel-head .sub{font-size:13.5px;color:var(--muted);margin-top:4px;}
.panel > p{color:var(--muted);font-size:15.5px;}
.panel p + p{margin-top:10px;}

.check-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.8;}
.check-list li i{
  flex:0 0 22px;width:22px;height:22px;margin-top:6px;border-radius:50%;
  background:rgba(255,91,46,.12);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-size:11px;
}
.check-list li.teal i{background:rgba(18,165,148,.14);color:var(--teal);}

.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;height:27px;padding:0 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;white-space:nowrap;
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-soft{background:rgba(255,91,46,.1);color:var(--brand-deep);}
.badge .dot{width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.75;}

.panel-figure{margin-top:20px;border-radius:var(--r-md);overflow:hidden;background:var(--surface-2);}
.panel-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);}
.panel-figure figcaption{font-size:13px;color:var(--muted);padding:10px 4px 0;}

.note-strip{
  display:flex;align-items:flex-start;gap:14px;margin-top:22px;
  background:var(--surface-2);border-left:4px solid var(--brand);
  border-radius:var(--r-md);padding:18px 20px;
}
.note-strip i{color:var(--brand-deep);font-size:16px;margin-top:5px;}
.note-strip p{font-size:14.5px;color:var(--ink-2);}

/* ---------- 自查清单卡 ---------- */
.selfcheck{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.sc-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s cubic-bezier(.22,.61,.36,1);
}
.sc-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.sc-card .ico{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,91,46,.1);color:var(--brand-deep);font-size:17px;margin-bottom:16px;
}
.sc-card h3{font-size:17px;margin-bottom:8px;}
.sc-card p{font-size:14.5px;color:var(--muted);}
.sc-card .badge{margin-top:16px;}

/* ---------- FAQ ---------- */
.acc{margin-top:8px;}
.acc .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;margin-bottom:12px;box-shadow:var(--sh-1);
}
.acc .accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--surface);color:var(--ink);font-size:16px;font-weight:600;line-height:1.6;
  padding:20px 22px;border:0;border-radius:0;box-shadow:none;
}
.acc .accordion-button:not(.collapsed){
  color:var(--brand-deep);
  box-shadow:inset 4px 0 0 0 var(--brand);
  padding-left:26px;
}
.acc .accordion-button:focus{box-shadow:none;}
.acc .accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:-3px;}
.acc .accordion-button::after{display:none;}
.acc-ico{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  background:rgba(255,91,46,.12);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-size:12px;
}
.acc-ico i{transition:transform .25s ease;}
.acc .accordion-button[aria-expanded="true"] .acc-ico{background:var(--grad-brand);color:#fff;}
.acc .accordion-button[aria-expanded="true"] .acc-ico i{transform:rotate(180deg);}
.acc .accordion-body{padding:0 26px 22px;font-size:15px;color:var(--muted);line-height:1.85;border-top:0;}
.acc .accordion-body strong{color:var(--ink);font-weight:600;}

/* ---------- 转化条 ---------- */
.cta-strip{
  background:var(--grad-brand);border-radius:var(--r-xl);padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-strip::after{
  content:"";position:absolute;right:-60px;top:-70px;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.4vw,30px);letter-spacing:-.3px;}
.cta-copy p{color:rgba(255,255,255,.86);margin-top:12px;font-size:15.5px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);
  background:#fff;color:var(--ink);font-size:15px;font-weight:600;border:1.5px solid #fff;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease;
}
.btn-ghost:hover{color:var(--ink);transform:translateY(-2px);box-shadow:0 14px 30px rgba(16,32,29,.18);}
.btn-ghost:active{transform:translateY(1px);}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:transparent;color:#fff;font-size:15px;font-weight:600;border:1.5px solid rgba(255,255,255,.6);
  transition:background .25s ease,transform .25s ease;
}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:rgba(255,255,255,.72);padding:66px 0 0;margin-top:96px;}
.foot-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.brand-name{font-size:16.5px;font-weight:700;color:#fff;letter-spacing:-.2px;}
.foot-desc{font-size:14px;color:rgba(255,255,255,.6);max-width:30em;line-height:1.8;}
.foot-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col ul a{font-size:14px;color:rgba(255,255,255,.66);}
.foot-col ul a:hover{color:var(--brand-light);text-decoration:underline;}
.fi{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:10px;}
.fi i{margin-top:6px;color:var(--brand-light);font-size:13px;}
.foot-bar{
  display:flex;flex-wrap:wrap;gap:8px 26px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.09);padding:20px 0 26px;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px){.topbar{display:none;}}
@media (max-width:1199.98px){
  .container-x{padding:0 28px;}
  :root{--side-w:200px;}
  .selfcheck{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .side-nav{display:none;}
  .topbar{display:flex;}
  .app-shell{display:block;}
  .sec{padding:64px 0 0;}
  .split{grid-template-columns:minmax(0,1fr);gap:24px;}
  .split-nav{position:static;}
  .split-nav ul{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .split-nav h3{padding-bottom:12px;}
  .split-nav a{padding:9px 14px;background:var(--surface-2);}
  .split-nav a::before{display:none;}
  .split-nav a.active{background:rgba(255,91,46,.14);}
  .ph-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .ph-badges{flex-direction:row;flex-wrap:wrap;}
  .ph-badge{min-width:0;flex:1 1 180px;}
  .foot-main{grid-template-columns:1fr 1fr;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:36px 28px;}
}
@media (max-width:767.98px){
  .container-x{padding:0 20px;}
  .page-hero{min-height:0;border-radius:var(--r-lg);}
  .ph-inner{padding:30px 22px;}
  .panel{padding:22px;border-radius:var(--r-lg);}
  .panel-head h3{font-size:18px;}
  .selfcheck{grid-template-columns:minmax(0,1fr);}
  .foot-main{grid-template-columns:minmax(0,1fr);gap:26px;}
  .site-foot{margin-top:64px;padding-top:48px;}
  .sec{padding:48px 0 0;}
  .cta-strip{border-radius:var(--r-lg);padding:30px 22px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}