/* roulang page: index */
:root{
  --c-ink:#123A33;
  --c-ink-deep:#0B2621;
  --c-ink-soft:#1F6B5C;
  --c-accent:#FF7A45;
  --c-accent-2:#FFB03A;
  --c-lime:#C9F269;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDF4F0;
  --c-line:#E3DFD6;
  --c-text:#1B2A26;
  --c-text-mute:#5E6E68;
  --c-text-invert:#F6F4EF;
  --grad-brand:linear-gradient(135deg,#123A33 0%,#1F6B5C 58%,#2E9E7E 100%);
  --grad-action:linear-gradient(135deg,#FF7A45 0%,#FFB03A 100%);
  --grad-badge:linear-gradient(120deg,#C9F269 0%,#7FE3A6 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh-1:0 8px 24px rgba(18,58,51,.07);
  --sh-2:0 16px 40px rgba(18,58,51,.14);
  --sh-3:0 10px 26px rgba(18,58,51,.16);
  --font-base:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:ui-monospace,"SF Mono",Consolas,monospace;

  --bs-primary:#123A33;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1B2A26;
  --bs-border-radius:14px;
  --bs-link-color:#1F6B5C;
  --bs-link-hover-color:#FF7A45;
  --bs-font-sans-serif:var(--font-base);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-ink-soft);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--c-ink);
  color:var(--c-text-invert);
  font-size:13px;
  min-height:40px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:40px;
  flex-wrap:wrap;
}
.pulse-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-lime);
  box-shadow:0 0 0 0 rgba(201,242,105,.6);
  animation:pulse 2.4s ease-in-out infinite;
  flex:0 0 auto;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(201,242,105,.55);}
  70%{box-shadow:0 0 0 8px rgba(201,242,105,0);}
  100%{box-shadow:0 0 0 0 rgba(201,242,105,0);}
}
.topbar-text{opacity:.86;}
.topbar-time{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  background:rgba(255,255,255,.1);
  border-radius:999px;
  padding:2px 12px;
  font-size:12.5px;
}
.topbar-time b{color:var(--c-lime);font-weight:700;}
.topbar-link{
  margin-left:auto;
  color:rgba(246,244,239,.82);
  font-size:12.5px;
  border-bottom:1px solid rgba(246,244,239,.35);
  padding-bottom:1px;
}
.topbar-link:hover{color:#fff;border-bottom-color:#fff;}

/* ---------- 导航 ---------- */
.site-header{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  position:sticky;
  top:0;
  z-index:1030;
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(18,58,51,.08);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:var(--c-ink);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;
  flex:0 0 auto;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-item{
  display:inline-block;
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  padding:8px 14px;
  border-radius:999px;
  position:relative;
  transition:color .18s ease,background .18s ease;
}
.nav-item::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--c-accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
}
.nav-item:hover{color:var(--c-ink-soft);}
.nav-item:hover::after{transform:scaleX(1);}
.nav-item.is-active{
  background:var(--c-ink);
  color:#fff;
}
.nav-item.is-active::after{display:none;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.btn-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-fill{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 8px 20px rgba(255,122,69,.24);
}
.btn-fill:hover{
  background:var(--grad-action);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(255,122,69,.3);
}
.btn-fill:active{transform:translateY(0);}
.btn-outline{
  background:transparent;
  color:var(--c-ink);
  border-color:var(--c-ink);
}
.btn-outline:hover{
  background:var(--c-ink);
  color:#fff;
}
.btn-ghost{
  background:rgba(255,255,255,.14);
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-ghost:hover{
  background:#fff;
  color:var(--c-ink);
  border-color:#fff;
}
.btn-sm{height:42px;padding:0 22px;font-size:14px;}
.nav-cta{height:44px;padding:0 24px;font-size:14.5px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-ink);
  font-size:16px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--c-surface-alt);}

/* offcanvas */
.offcanvas{border:none;}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--c-line);
}
.drawer-body{padding:18px 20px 28px;display:flex;flex-direction:column;gap:6px;}
.drawer-link{
  display:block;
  padding:13px 16px;
  border-radius:12px;
  font-size:15.5px;
  font-weight:600;
  color:var(--c-text);
}
.drawer-link:hover{background:var(--c-surface-alt);color:var(--c-ink-soft);}
.drawer-link.is-active{background:var(--c-ink);color:#fff;}
.drawer-cta{margin-top:16px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--c-surface-alt);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--c-ink-soft);
  background:var(--c-surface-alt);
  border:1px solid var(--c-line);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.section-title{
  font-size:36px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.section-sub{
  margin-top:12px;
  max-width:660px;
  font-size:15.5px;
  color:var(--c-text-mute);
  line-height:1.8;
}
.link-more{
  font-size:14.5px;
  font-weight:600;
  color:var(--c-ink-soft);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.link-more i{transition:transform .18s ease;font-size:13px;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:76px 0 88px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-160px;right:-120px;
  width:620px;height:620px;
  background:radial-gradient(circle,rgba(46,158,126,.18) 0%,rgba(246,244,239,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  bottom:-200px;left:-160px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(201,242,105,.22) 0%,rgba(246,244,239,0) 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-ink);
  background:var(--grad-badge);
  border-radius:999px;
  padding:6px 16px;
  margin-bottom:20px;
}
.hero h1{
  font-size:48px;
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.hero h1 .accent-line{
  display:inline-block;
  position:relative;
  color:var(--c-ink);
}
.hero h1 .accent-line::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:4px;
  height:8px;
  background:rgba(255,176,58,.35);
  border-radius:4px;
  z-index:-1;
}
.hero-lead{
  margin-top:20px;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text-mute);
  max-width:560px;
}
.hero-actions{
  display:flex;
  gap:14px;
  margin-top:32px;
  flex-wrap:wrap;
}
.hero-badges{
  display:flex;
  gap:14px;
  margin-top:40px;
  flex-wrap:wrap;
}
.stat-chip{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  padding:14px 20px;
  box-shadow:var(--sh-1);
  min-width:140px;
}
.stat-chip b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:28px;
  line-height:1.15;
  color:var(--c-accent);
  font-weight:700;
}
.stat-chip span{
  display:block;
  font-size:12.5px;
  color:var(--c-text-mute);
  margin-top:2px;
}
.hero-card{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:420px;
  background-image:linear-gradient(150deg,rgba(11,38,33,.92) 0%,rgba(31,107,92,.78) 58%,rgba(46,158,126,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-2);
  padding:32px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  color:#fff;
}
.hero-card-top{
  position:absolute;
  top:24px;right:24px;
  background:var(--grad-badge);
  color:var(--c-ink);
  border-radius:14px;
  padding:10px 16px;
  font-size:12.5px;
  font-weight:600;
  line-height:1.35;
  box-shadow:var(--sh-3);
  text-align:center;
}
.hero-card-top b{
  display:block;
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  line-height:1.2;
}
.hero-card h2{
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:10px;
}
.hero-card p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
  max-width:330px;
}
.hero-status{
  position:absolute;
  left:24px;bottom:24px;
  background:rgba(255,255,255,.96);
  border:1px solid rgba(18,58,51,.1);
  border-radius:14px;
  padding:10px 16px;
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--c-ink);
  font-size:12.5px;
  font-weight:600;
  box-shadow:var(--sh-3);
}
.hero-status .dot{
  width:8px;height:8px;border-radius:50%;
  background:#2E9E7E;
  flex:0 0 auto;
}
.hero-card-inner{padding-bottom:52px;}

/* ---------- 三步上手 ---------- */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  position:relative;
}
.step-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:32px 28px 28px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-num{
  font-family:var(--font-num);
  font-size:44px;
  font-weight:700;
  line-height:1;
  color:rgba(31,107,92,.18);
  letter-spacing:-.02em;
}
.step-card h3{
  margin-top:14px;
  font-size:20px;
  font-weight:600;
  color:var(--c-ink);
}
.step-card p{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--c-text-mute);
  min-height:76px;
}
.step-link{
  margin-top:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--c-ink-soft);
}
.step-link i{font-size:12px;transition:transform .18s ease;}
.step-link:hover i{transform:translateX(4px);}

/* ---------- 能力卡片 ---------- */
.cap-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.cap-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--sh-1);
  position:relative;
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
  grid-column:span 4;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.cap-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--grad-action);
  opacity:0;
  transition:opacity .18s ease;
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.cap-card:hover::before{opacity:1;}
.cap-card.wide{grid-column:span 8;flex-direction:row;gap:24px;align-items:center;}
.cap-icon{
  width:46px;height:46px;
  border-radius:12px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;
  flex:0 0 auto;
}
.cap-card h3{font-size:18px;font-weight:600;color:var(--c-ink);}
.cap-card p{font-size:14px;line-height:1.75;color:var(--c-text-mute);}
.cap-media{
  width:42%;
  border-radius:var(--r-sm);
  overflow:hidden;
  flex:0 0 auto;
  aspect-ratio:16/9;
}
.cap-media img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-sm);}
.mini-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  align-self:flex-start;
  background:var(--grad-badge);
  color:var(--c-ink);
  border-radius:999px;
  padding:4px 12px;
  font-size:12px;
  font-weight:600;
}

/* ---------- 指标条 ---------- */
.metric-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.metric-item{
  padding:28px 24px;
  text-align:center;
  border-right:1px solid var(--c-line);
}
.metric-item:last-child{border-right:none;}
.metric-item b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:34px;
  font-weight:700;
  color:var(--c-ink);
  line-height:1.2;
}
.metric-item span{font-size:13.5px;color:var(--c-text-mute);}

/* ---------- 案例证明 ---------- */
.case-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:24px;
}
.case-main{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:grid;
  grid-template-columns:1fr 1.05fr;
  transition:transform .2s ease,box-shadow .2s ease;
}
.case-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-main .case-figure{
  position:relative;
  min-height:100%;
  background:var(--c-surface-alt);
}
.case-main .case-figure img{width:100%;height:100%;object-fit:cover;}
.case-body{padding:32px;display:flex;flex-direction:column;gap:12px;}
.case-tag{
  display:inline-flex;align-self:flex-start;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  border-radius:999px;
  padding:4px 12px;
  font-size:12.5px;
  font-weight:600;
}
.case-body h3{font-size:21px;font-weight:600;line-height:1.4;color:var(--c-ink);}
.case-body p{font-size:14.5px;line-height:1.8;color:var(--c-text-mute);}
.case-figures{display:flex;gap:12px;margin-top:6px;flex-wrap:wrap;}
.case-figures .fig{
  background:var(--c-surface-alt);
  border-radius:12px;
  padding:10px 16px;
}
.case-figures .fig b{
  font-family:var(--font-num);
  font-size:20px;
  color:var(--c-ink);
  display:block;
  line-height:1.2;
}
.case-figures .fig span{font-size:12px;color:var(--c-text-mute);}
.case-side{display:flex;flex-direction:column;gap:24px;}
.case-small{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;
  gap:0;
  flex:1;
  transition:transform .2s ease,box-shadow .2s ease;
}
.case-small:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-small .thumb{width:38%;flex:0 0 auto;background:var(--c-surface-alt);}
.case-small .thumb img{width:100%;height:100%;object-fit:cover;}
.case-small .txt{padding:20px;display:flex;flex-direction:column;gap:8px;}
.case-small h3{font-size:16.5px;font-weight:600;color:var(--c-ink);line-height:1.45;}
.case-small p{font-size:13.5px;line-height:1.7;color:var(--c-text-mute);}

/* ---------- 最新信息 ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-cover{
  aspect-ratio:16/9;
  margin:8px 8px 0;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:linear-gradient(135deg,#EDF4F0 0%,#DCEAE3 100%);
  display:flex;align-items:center;justify-content:center;
  color:rgba(31,107,92,.4);
  font-size:30px;
}
.news-cover img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-cat{
  align-self:flex-start;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  border-radius:999px;
  padding:3px 12px;
  font-size:12px;
  font-weight:600;
}
.news-body h3{
  font-size:17.5px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body h3 a{color:inherit;}
.news-body h3 a:hover{color:var(--c-ink-soft);}
.news-excerpt{
  font-size:14px;
  line-height:1.7;
  color:var(--c-text-mute);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13.5px;
  color:var(--c-text-mute);
}
.news-foot time{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;}
.news-foot .read{
  font-weight:600;
  color:var(--c-ink-soft);
  display:inline-flex;align-items:center;gap:6px;
}
.news-empty{
  grid-column:1/-1;
  text-align:center;
  padding:48px 24px;
  background:var(--c-surface);
  border:1px dashed var(--c-line);
  border-radius:var(--r-md);
}
.news-empty .circle{
  width:96px;height:96px;
  border-radius:50%;
  background:var(--c-surface-alt);
  color:rgba(31,107,92,.5);
  font-size:32px;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;
}
.news-empty strong{display:block;font-size:16px;color:var(--c-ink);margin-bottom:6px;}
.news-empty span{font-size:14px;color:var(--c-text-mute);}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:0.85fr 1.4fr;
  gap:48px;
  align-items:start;
}
.accordion-item{
  border:none;
  background:var(--c-surface);
  border-radius:16px;
  margin-bottom:12px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  position:relative;
}
.accordion-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--c-accent);
  opacity:0;
  transition:opacity .18s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1;}
.accordion-button{
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  background:var(--c-surface);
  padding:20px 24px;
  box-shadow:none !important;
  border-radius:16px !important;
  line-height:1.55;
}
.accordion-button:not(.collapsed){
  color:var(--c-ink);
  background:var(--c-surface);
}
.accordion-button::after{
  background-image:none;
  content:"+";
  font-size:20px;
  font-weight:400;
  color:var(--c-ink-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  width:26px;height:26px;
  border-radius:50%;
  background-color:var(--c-surface-alt);
  transition:transform .18s ease,background .18s ease;
  transform:none;
}
.accordion-button:not(.collapsed)::after{
  content:"−";
  transform:rotate(180deg);
  background-color:rgba(255,122,69,.14);
  color:var(--c-accent);
}
.accordion-body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-mute);
}
.faq-aside{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--sh-1);
}
.faq-aside h3{font-size:19px;font-weight:600;color:var(--c-ink);margin-bottom:12px;}
.faq-aside p{font-size:14.5px;line-height:1.8;color:var(--c-text-mute);}
.faq-aside .aside-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.faq-aside .aside-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--c-text-mute);line-height:1.7;
}
.faq-aside .aside-list i{color:var(--c-ink-soft);margin-top:4px;font-size:13px;}
.faq-aside .btn-pill{margin-top:22px;width:100%;}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:56px;
  color:#fff;
  overflow:hidden;
  box-shadow:var(--sh-2);
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-80px;bottom:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,105,.28) 0%,rgba(201,242,105,0) 70%);
}
.cta-card h2{font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.cta-card p{margin-top:14px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:520px;}
.cta-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.cta-badge{
  position:relative;
  z-index:2;
  background:var(--grad-badge);
  color:var(--c-ink);
  border-radius:20px;
  padding:24px;
  box-shadow:var(--sh-3);
  justify-self:end;
  text-align:center;
  min-width:190px;
}
.cta-badge b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:40px;
  font-weight:700;
  line-height:1.15;
}
.cta-badge span{display:block;font-size:12.5px;margin-top:4px;color:rgba(18,58,51,.72);line-height:1.5;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink-deep);
  color:var(--c-text-invert);
  margin-top:96px;
  border-top:4px solid transparent;
  border-image:linear-gradient(90deg,#123A33 0%,#1F6B5C 58%,#2E9E7E 100%) 1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 44px;
}
.footer-brand .brand{color:#fff;font-size:17px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand p{
  margin-top:16px;
  font-size:13.5px;
  line-height:1.85;
  color:rgba(246,244,239,.66);
  max-width:300px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(246,244,239,.7);
  transition:color .18s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-col li span{
  font-size:13.5px;
  line-height:1.8;
  color:rgba(246,244,239,.66);
  display:block;
}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.12);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:11px;
  color:rgba(246,244,239,.5);
  line-height:1.8;
}
.footer-bottom .contact-line{
  font-family:var(--font-num);
  letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero h1{font-size:42px;}
  .cap-card{grid-column:span 6;}
  .cap-card.wide{grid-column:span 12;}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:36px;}
  .hero-card{min-height:300px;max-height:360px;padding:24px;}
  .hero-card-inner{padding-bottom:44px;}
  .hero-card p{max-width:none;}
  .section{padding:72px 0;}
  .section-title{font-size:30px;}
  .steps-grid{grid-template-columns:1fr;gap:18px;}
  .step-card p{min-height:0;}
  .cap-card{grid-column:span 12;}
  .cap-card.wide{flex-direction:column;align-items:flex-start;}
  .cap-media{width:100%;}
  .metric-row{grid-template-columns:repeat(2,1fr);}
  .metric-item:nth-child(2){border-right:none;}
  .metric-item:nth-child(1),.metric-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .case-grid{grid-template-columns:1fr;}
  .case-main{grid-template-columns:1fr;}
  .case-main .case-figure{min-height:200px;aspect-ratio:16/9;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-card{grid-template-columns:1fr;padding:40px 32px;}
  .cta-badge{justify-self:start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  .topbar-text{display:none;}
  .topbar-inner{font-size:12px;}
  .hero h1{font-size:30px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn-pill{flex:1 1 auto;}
  .hero-badges{gap:10px;}
  .stat-chip{flex:1 1 calc(50% - 5px);min-width:0;padding:12px 14px;}
  .stat-chip b{font-size:24px;}
  .section-title{font-size:25px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .news-grid{grid-template-columns:1fr;}
  .case-small{flex-direction:column;}
  .case-small .thumb{width:100%;aspect-ratio:16/9;}
  .cta-card h2{font-size:25px;}
  .cta-card{padding:32px 24px;}
  .cta-actions .btn-pill{width:100%;}
  .metric-item b{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .accordion-button{font-size:16px;padding:18px 20px;}
  .accordion-body{padding:0 20px 20px;}
}
@media (max-width:575.98px){
  .hero-card{min-height:260px;}
  .hero-card-top{top:16px;right:16px;padding:8px 12px;font-size:11.5px;}
  .hero-card-top b{font-size:18px;}
  .hero-status{left:16px;bottom:16px;font-size:11.5px;padding:8px 12px;}
  .hero-card h2{font-size:19px;}
  .hero-card p{font-size:13px;}
  .metric-row{grid-template-columns:1fr;}
  .metric-item{border-right:none;border-bottom:1px solid var(--c-line);}
  .metric-item:last-child{border-bottom:none;}
}

/* roulang page: article */
:root{
  --c-ink:#123A33;
  --c-ink-deep:#0B2621;
  --c-ink-soft:#1F6B5C;
  --c-accent:#FF7A45;
  --c-accent-2:#FFB03A;
  --c-lime:#C9F269;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDF4F0;
  --c-line:#E3DFD6;
  --c-text:#1B2A26;
  --c-text-mute:#5E6E68;
  --c-text-invert:#F6F4EF;
  --grad-brand:linear-gradient(135deg,#123A33 0%,#1F6B5C 58%,#2E9E7E 100%);
  --grad-action:linear-gradient(135deg,#FF7A45 0%,#FFB03A 100%);
  --grad-badge:linear-gradient(120deg,#C9F269 0%,#7FE3A6 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh:0 8px 24px rgba(18,58,51,.07);
  --sh-hover:0 16px 40px rgba(18,58,51,.14);
  --bs-primary:#1F6B5C;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1B2A26;
  --bs-link-color:#1F6B5C;
  --bs-link-hover-color:#123A33;
  --bs-border-radius:14px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-ink-soft);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-ink)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.mono{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-variant-numeric:tabular-nums}

/* ============ 顶部活动条 ============ */
.topbar{background:var(--c-ink);color:var(--c-text-invert);font-size:13px}
.topbar-inner{display:flex;align-items:center;gap:20px;min-height:40px;padding-top:6px;padding-bottom:6px}
.topbar-live{display:inline-flex;align-items:center;gap:8px;font-weight:500}
.topbar-live .dot{width:8px;height:8px;border-radius:50%;background:var(--c-lime);box-shadow:0 0 0 0 rgba(201,242,105,.6);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(201,242,105,.55)}50%{box-shadow:0 0 0 6px rgba(201,242,105,0)}}
.topbar-timer{margin-left:auto;color:rgba(246,244,239,.82)}
.topbar-timer b{color:var(--c-lime);font-family:ui-monospace,"SF Mono",Consolas,monospace;font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:.02em}
.topbar-link{color:rgba(246,244,239,.82);border-bottom:1px solid rgba(246,244,239,.35);padding-bottom:1px}
.topbar-link:hover{color:#fff;border-bottom-color:var(--c-lime)}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,58,51,.09)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px}
.brand-text{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap}
.brand:hover .brand-text{color:var(--c-ink-soft)}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px;flex-wrap:nowrap}
.nav-item{position:relative;font-size:15px;font-weight:600;color:var(--c-text);padding:8px 14px;border-radius:999px;white-space:nowrap;transition:color .18s ease,background .18s ease}
.nav-item::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-item:hover{color:var(--c-ink-soft)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.is-active{background:var(--c-ink);color:#fff}
.nav-item.is-active::after{display:none}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;white-space:nowrap}
.btn:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:3px}
.btn-primary-pill{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.24)}
.btn-primary-pill:hover{background:var(--grad-action);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.3)}
.btn-primary-pill:active{transform:translateY(0)}
.btn-ghost-pill{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn-ghost-pill:hover{background:var(--c-ink);color:#fff}
.btn-light-pill{background:#fff;color:var(--c-ink);border-color:#fff}
.btn-light-pill:hover{background:var(--c-lime);border-color:var(--c-lime);color:var(--c-ink-deep);transform:translateY(-1px)}
.btn-outline-light-pill{background:transparent;color:#fff;border-color:rgba(246,244,239,.55)}
.btn-outline-light-pill:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-sm-pill{height:42px;padding:0 22px;font-size:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);align-items:center;justify-content:center;font-size:18px;cursor:pointer}
.nav-toggle:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:2px}

/* ============ 面包屑 ============ */
.crumb-bar{padding:18px 0 6px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-mute);margin:0;padding:0;background:none}
.breadcrumb a{color:var(--c-text-mute)}
.breadcrumb a:hover{color:var(--c-ink);text-decoration:underline}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-ink);font-weight:600}

/* ============ 文章头区 ============ */
.article-head{padding:14px 0 40px;max-width:820px}
.kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--c-surface-alt);color:var(--c-ink-soft);font-size:12.5px;font-weight:600;letter-spacing:.02em}
.kicker i{font-size:11px}
.article-title{font-size:48px;line-height:1.15;margin:20px 0 22px;letter-spacing:-.01em;word-break:break-word}
.lead-summary{position:relative;padding-left:18px;font-size:18px;line-height:1.85;color:var(--c-text);border-left:3px solid var(--c-accent)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;font-size:14px;color:var(--c-text-mute)}
.meta-row .sep{color:var(--c-line)}
.meta-row .mono{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-variant-numeric:tabular-nums}

/* ============ 正文区 ============ */
.article-shell{padding-bottom:8px}
.article-panel{
  max-width:820px;
  margin:0 auto;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh);
  padding:52px 56px 48px;
}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--c-text)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:26px;line-height:1.35;margin:48px 0 16px;padding-left:16px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:1em;border-radius:2px;background:var(--c-accent)}
.article-body h3{font-size:20px;line-height:1.4;margin:34px 0 12px}
.article-body h4{font-size:18px;line-height:1.4;margin:26px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.6em;line-height:1.85}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--c-ink-soft)}
.article-body ol{counter-reset:li}
.article-body ol li::before{counter-increment:li;content:counter(li);position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--c-accent);font-family:ui-monospace,Consolas,monospace}
.article-body blockquote{margin:28px 0;padding:20px 24px;background:var(--c-surface-alt);border-left:4px solid var(--c-ink-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-ink);font-size:16.5px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:12px 0;width:100%;object-fit:cover}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-text-mute);margin-top:8px;text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body table th,.article-body table td{padding:12px 16px;text-align:left;border:0}
.article-body table thead th{background:var(--c-surface-alt);color:var(--c-ink);font-weight:600}
.article-body table tbody tr:nth-child(even){background:#FAF9F5}
.article-body a{color:var(--c-ink-soft);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent)}
.article-body strong{color:var(--c-ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0}
.article-body code{background:var(--c-surface-alt);color:var(--c-ink);padding:2px 7px;border-radius:6px;font-size:.9em;font-family:ui-monospace,Consolas,monospace}

/* 空态 */
.article-empty{max-width:760px;margin:0 auto;text-align:center;padding:24px 0 8px}
.article-empty .empty-icon{width:96px;height:96px;border-radius:50%;background:var(--c-surface-alt);color:var(--c-ink-soft);display:inline-flex;align-items:center;justify-content:center;font-size:34px;margin-bottom:22px}
.article-empty h2{font-size:26px;margin-bottom:12px}
.article-empty p{color:var(--c-text-mute);font-size:15.5px;max-width:460px;margin:0 auto 26px}

/* ============ 标签与操作行 ============ */
.article-foot{max-width:820px;margin:0 auto;padding-top:36px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row .label{font-size:13px;color:var(--c-text-mute);font-weight:600;margin-right:2px}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:var(--c-surface-alt);color:var(--c-ink-soft);font-size:13px;font-weight:600;transition:background .18s ease,color .18s ease}
.tag:hover{background:var(--c-ink);color:#fff}
.action-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:26px;padding-top:26px;border-top:1px solid var(--c-line)}
.action-row .spacer{margin-left:auto}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--c-ink-soft);text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:36px;line-height:1.25}
.section-head p{margin-top:14px;color:var(--c-text-mute);font-size:16px}

/* 相关推荐 */
.related-list{display:grid;gap:20px;grid-template-columns:repeat(3,1fr)}
.related-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh);transition:transform .18s ease,box-shadow .18s ease}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.related-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-alt)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.related-body .tag{align-self:flex-start;margin-bottom:12px;font-size:12px;height:28px}
.related-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-body p{font-size:14px;color:var(--c-text-mute);line-height:1.7;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--c-ink);display:inline-flex;align-items:center;gap:6px}
.related-more i{transition:transform .18s ease}
.related-card:hover .related-more i{transform:translateX(4px)}
.related-card:hover .related-more{color:var(--c-accent)}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start}
.faq-intro h2{font-size:34px;line-height:1.25;margin-bottom:14px}
.faq-intro p{color:var(--c-text-mute);font-size:15.5px}
.faq-intro .btn{margin-top:22px}
.accordion.faq-acc{max-width:820px}
.faq-acc .accordion-item{border:0;background:#fff;border-radius:16px;margin-bottom:12px;box-shadow:var(--sh);overflow:hidden}
.faq-acc .accordion-button{background:#fff;color:var(--c-text);font-size:17px;font-weight:600;line-height:1.5;padding:20px 56px 20px 24px;border-radius:16px;box-shadow:none;border-left:3px solid transparent;transition:color .18s ease,border-color .18s ease}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-ink-soft);outline-offset:-2px}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-ink);background:#fff;border-left-color:var(--c-accent);padding-left:21px}
.faq-acc .accordion-button::after{content:"+";background-image:none;font-size:22px;font-weight:400;line-height:1;color:var(--c-ink-soft);width:auto;height:auto;position:absolute;right:24px;top:50%;transform:translateY(-50%);transition:transform .2s ease,color .2s ease}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%) rotate(180deg);color:var(--c-accent)}
.faq-acc .accordion-body{padding:0 24px 22px 21px;font-size:15px;line-height:1.8;color:var(--c-text-mute)}

/* CTA */
.cta-block{position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--grad-brand);color:var(--c-text-invert);padding:56px 52px;box-shadow:var(--sh)}
.cta-block::after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:rgba(201,242,105,.14)}
.cta-inner{position:relative;display:flex;align-items:center;gap:40px;flex-wrap:wrap}
.cta-copy{max-width:640px}
.cta-copy h2{color:#fff;font-size:34px;line-height:1.25;margin-bottom:14px}
.cta-copy p{color:rgba(246,244,239,.86);font-size:16px;margin-bottom:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-left:auto}
.cta-badge{position:absolute;right:52px;bottom:-28px;background:var(--grad-badge);color:var(--c-ink);border-radius:16px;padding:10px 18px;font-size:13px;font-weight:700;box-shadow:0 10px 26px rgba(18,58,51,.16);display:flex;align-items:center;gap:8px}
.cta-badge b{font-size:20px;font-family:ui-monospace,Consolas,monospace;font-variant-numeric:tabular-nums}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink-deep);color:var(--c-text-invert);margin-top:88px;border-top:4px solid transparent;border-image:var(--grad-brand) 1;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(246,244,239,.7);max-width:320px;margin:0}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:rgba(246,244,239,.7);line-height:1.7}
.footer-col ul li a{color:rgba(246,244,239,.7);font-size:14px}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;padding:22px 0 30px;border-top:1px solid rgba(246,244,239,.14);font-size:12px;color:rgba(246,244,239,.55)}
.footer-bottom .contact-line{font-family:ui-monospace,Consolas,monospace}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-title{font-size:42px}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .cta-badge{position:static;margin-top:26px;display:inline-flex}
}
@media (max-width:991.98px){
  .container{padding:0 24px}
  .nav-toggle{display:inline-flex}
  .nav-menu{
    position:fixed;
    top:0;right:0;bottom:0;
    width:min(320px,86vw);
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:88px 22px 24px;
    margin:0;
    box-shadow:-18px 0 48px rgba(18,58,51,.18);
    transform:translateX(105%);
    transition:transform .26s ease;
    overflow-y:auto;
    z-index:1040;
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-item{padding:14px 16px;border-radius:14px;font-size:16px}
  .nav-item::after{display:none}
  .nav-item.is-active{background:var(--c-ink);color:#fff}
  .header-actions .btn-primary-pill{height:42px;padding:0 20px;font-size:14px}
  .header-inner{gap:16px;min-height:64px}
  .article-panel{padding:36px 28px}
  .article-title{font-size:34px}
  .lead-summary{font-size:16.5px}
  .section{padding:64px 0}
  .section-head h2{font-size:30px}
  .related-list{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{padding:40px 32px}
  .cta-copy h2{font-size:28px}
  .cta-actions{margin-left:0}
}
@media (max-width:767.98px){
  .topbar-inner{min-height:36px;gap:12px;font-size:12px}
  .topbar-link{display:none}
  .topbar-timer{margin-left:auto;font-size:12px}
  .article-title{font-size:28px;line-height:1.25}
  .lead-summary{font-size:16px;padding-left:14px}
  .article-panel{padding:28px 20px;border-radius:var(--r-md)}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px;margin-top:38px}
  .article-body h3{font-size:19px}
  .related-list{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:25px}
  .faq-intro h2{font-size:25px}
  .btn{height:44px;padding:0 22px;font-size:14.5px}
  .action-row .spacer{display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{font-size:11.5px}
  .cta-block{padding:32px 22px}
  .cta-copy h2{font-size:24px}
  .cta-actions .btn{width:100%}
}
@media (max-width:575.98px){
  .container{padding:0 18px}
  .article-title{font-size:25px}
  .kicker{font-size:12px}
  .breadcrumb{font-size:12.5px}
  .article-panel{padding:24px 16px}
  .faq-acc .accordion-button{font-size:15.5px;padding:16px 48px 16px 18px}
  .faq-acc .accordion-button:not(.collapsed){padding-left:15px}
  .cta-copy h2{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --c-ink:#123A33;
  --c-ink-deep:#0B2621;
  --c-ink-soft:#1F6B5C;
  --c-accent:#FF7A45;
  --c-accent-2:#FFB03A;
  --c-lime:#C9F269;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDF4F0;
  --c-line:#E3DFD6;
  --c-text:#1B2A26;
  --c-text-mute:#5E6E68;
  --c-text-invert:#F6F4EF;
  --grad-brand:linear-gradient(135deg,#123A33 0%,#1F6B5C 58%,#2E9E7E 100%);
  --grad-action:linear-gradient(135deg,#FF7A45 0%,#FFB03A 100%);
  --grad-badge:linear-gradient(120deg,#C9F269 0%,#7FE3A6 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh-1:0 8px 24px rgba(18,58,51,.07);
  --sh-2:0 16px 40px rgba(18,58,51,.14);
  --sh-3:0 10px 26px rgba(18,58,51,.16);
  --ff:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --ff-mono:ui-monospace,"SF Mono",Consolas,monospace;

  --bs-primary:#123A33;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1B2A26;
  --bs-border-radius:16px;
  --bs-link-color:#1F6B5C;
  --bs-link-hover-color:#123A33;
  --bs-font-sans-serif:var(--ff);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-ink-soft);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-ink);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:32px;
}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--c-ink);
  color:var(--c-text-invert);
  min-height:40px;
  display:flex;
  align-items:center;
  font-size:13px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
  padding-block:8px;
}
.topbar-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  letter-spacing:.02em;
}
.topbar-status .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-lime);
  box-shadow:0 0 0 0 rgba(201,242,105,.6);
  animation:breathe 2.4s ease-in-out infinite;
}
@keyframes breathe{
  0%,100%{box-shadow:0 0 0 0 rgba(201,242,105,.55);}
  50%{box-shadow:0 0 0 6px rgba(201,242,105,0);}
}
.topbar-count{
  font-family:var(--ff-mono);
  font-variant-numeric:tabular-nums;
  color:var(--c-lime);
  letter-spacing:.04em;
}
.topbar-link{
  margin-left:auto;
  color:rgba(246,244,239,.82);
  font-size:13px;
  border-bottom:1px solid transparent;
}
.topbar-link:hover{color:#fff;border-bottom-color:var(--c-accent);}

/* ---------- 导航 ---------- */
.site-header{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  position:sticky;
  top:0;
  z-index:1040;
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,58,51,.09);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:var(--c-ink);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-mark{
  width:32px;height:32px;
  border-radius:10px;
  background:var(--grad-brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  flex:0 0 auto;
}
.brand-text{color:var(--c-ink);}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  transition:color .18s ease,background .18s ease;
}
.nav-item::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:4px;
  height:2px;
  background:var(--c-accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-item:hover{color:var(--c-ink);}
.nav-item:hover::after{transform:scaleX(1);}
.nav-item.is-active{
  background:var(--c-ink);
  color:#fff;
}
.nav-item.is-active::after{display:none;}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:8px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary,
.btn.btn-primary{
  background:var(--c-accent);
  color:#fff;
  border-color:var(--c-accent);
  box-shadow:0 8px 20px rgba(255,122,69,.24);
}
.btn-primary:hover,
.btn.btn-primary:hover{
  background:var(--grad-action);
  border-color:transparent;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(255,122,69,.3);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--c-ink);
  border-color:var(--c-ink);
}
.btn-ghost:hover{
  background:var(--c-ink);
  color:#fff;
  transform:translateY(-1px);
}
.btn-light{
  background:#fff;
  color:var(--c-ink);
  border-color:rgba(255,255,255,.85);
}
.btn-light:hover{background:var(--c-lime);border-color:var(--c-lime);color:var(--c-ink-deep);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 22px;font-size:14px;}
.btn-link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--c-ink-soft);
  padding:4px 0;
}
.btn-link-arrow i{transition:transform .18s ease;}
.btn-link-arrow:hover i{transform:translateX(4px);}

/* ---------- 移动端抽屉 ---------- */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:12px;
  color:var(--c-ink);
  font-size:17px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-backdrop{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(11,38,33,.42);
  z-index:1045;
  opacity:0;
  transition:opacity .24s ease;
}
.nav-backdrop.is-open{display:block;opacity:1;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  width:620px;height:620px;
  right:-180px;top:-320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(237,244,240,.95) 0%,rgba(237,244,240,0) 68%);
  pointer-events:none;
}
.page-hero .container{
  position:relative;
  padding-block:44px 52px;
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-mute);
  margin-bottom:20px;
}
.breadcrumb-line a{color:var(--c-text-mute);}
.breadcrumb-line a:hover{color:var(--c-ink);}
.breadcrumb-line .sep{color:#B9B3A6;}
.breadcrumb-line .current{color:var(--c-ink);font-weight:600;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 16px;
  border-radius:999px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:40px;
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-ink);
  max-width:840px;
}
.page-hero .hero-sub{
  margin-top:16px;
  font-size:17px;
  color:var(--c-text-mute);
  max-width:760px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.meta-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  font-size:13px;
  font-weight:600;
  color:var(--c-ink-soft);
}
.meta-pill i{color:var(--c-accent);}

/* ---------- 通用板块 ---------- */
.section{padding-block:88px;}
.section.alt{background:var(--c-surface-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--c-ink-soft);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-title{
  font-size:34px;
  line-height:1.25;
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:-.01em;
}
.section-desc{
  margin-top:14px;
  font-size:16px;
  color:var(--c-text-mute);
  max-width:700px;
}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  max-width:860px;
  margin-inline:auto;
  padding-left:46px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;
  top:10px;
  bottom:10px;
  width:2px;
  background:var(--c-line);
}
.tl-item{
  position:relative;
  padding-bottom:36px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-46px;
  top:8px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 0 5px rgba(255,122,69,.16);
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:#CFE3DA;
}
.tl-head{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.tl-num{
  font-family:var(--ff-mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  font-weight:700;
  color:var(--c-ink);
  background:var(--grad-badge);
  border-radius:999px;
  padding:3px 12px;
  letter-spacing:.04em;
}
.tl-title{
  font-size:20px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.4;
}
.tl-text{
  font-size:15.5px;
  color:var(--c-text-mute);
  line-height:1.8;
}
.tl-note{
  margin-top:16px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tl-chip{
  font-size:12.5px;
  font-weight:600;
  color:var(--c-ink-soft);
  background:var(--c-surface-alt);
  border-radius:999px;
  padding:5px 12px;
}
.tl-code{
  margin-top:16px;
  background:var(--c-ink);
  color:rgba(246,244,239,.92);
  border-radius:var(--r-sm);
  padding:16px 18px;
  font-family:var(--ff-mono);
  font-size:13.5px;
  line-height:1.9;
  overflow-x:auto;
}
.tl-code span{color:var(--c-lime);}

/* ---------- 材料清单 ---------- */
.material-wrap{
  display:grid;
  grid-template-columns:1.55fr 1fr;
  gap:28px;
  align-items:start;
}
.check-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh-1);
}
.check-card h3{
  font-size:20px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:6px;
}
.check-card .check-hint{
  font-size:14px;
  color:var(--c-text-mute);
  margin-bottom:22px;
}
.check-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.check-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 16px;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  background:#FCFBF7;
  transition:border-color .18s ease,background .18s ease;
}
.check-item:hover{border-color:#BFDCD0;background:#fff;}
.check-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--grad-badge);
  color:var(--c-ink-deep);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  margin-top:2px;
}
.check-item strong{
  display:block;
  font-size:15px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.5;
}
.check-item span{
  display:block;
  font-size:13px;
  color:var(--c-text-mute);
  line-height:1.6;
  margin-top:2px;
}
.tip-card{
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:32px;
  color:var(--c-text-invert);
  box-shadow:var(--sh-1);
  position:relative;
  overflow:hidden;
}
.tip-card::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-70px;
  width:200px;height:200px;
  border-radius:50%;
  background:rgba(201,242,105,.12);
}
.tip-card h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:14px;
  position:relative;
  z-index:1;
}
.tip-list{position:relative;z-index:1;}
.tip-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(246,244,239,.86);
  padding:9px 0;
  border-bottom:1px dashed rgba(246,244,239,.2);
}
.tip-list li:last-child{border-bottom:0;}
.tip-list i{color:var(--c-lime);margin-top:6px;font-size:12px;}

/* ---------- 图文块 ---------- */
.split-block{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:48px;
  align-items:center;
}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  background:var(--c-surface-alt);
}
.split-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
}
.split-body h2{
  font-size:32px;
  line-height:1.28;
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.split-body .lead{
  font-size:16px;
  color:var(--c-text-mute);
  margin-bottom:24px;
}
.step-list li{
  display:flex;
  gap:14px;
  padding:14px 0;
  border-bottom:1px solid var(--c-line);
}
.step-list li:last-child{border-bottom:0;}
.step-idx{
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:10px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  font-family:var(--ff-mono);
  font-size:13px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.step-list strong{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
}
.step-list p{
  font-size:14.5px;
  color:var(--c-text-mute);
  line-height:1.7;
  margin-top:2px;
}

/* ---------- 常见卡点 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.point-item{
  display:flex;
  gap:18px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.point-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.point-icon{
  flex:0 0 auto;
  width:44px;height:44px;
  border-radius:14px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.point-item h3{
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:6px;
}
.point-item p{
  font-size:14.5px;
  color:var(--c-text-mute);
  line-height:1.75;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin-inline:auto;}
.accordion.faq-acc .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:16px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.accordion.faq-acc .accordion-item:hover{box-shadow:var(--sh-2);border-color:#CFE3DA;}
.accordion.faq-acc .accordion-button{
  background:transparent;
  color:var(--c-ink);
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  padding:20px 24px;
  border-radius:16px;
  box-shadow:none;
  position:relative;
}
.accordion.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-ink);
  background:transparent;
  box-shadow:none;
}
.accordion.faq-acc .accordion-button:not(.collapsed)::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--c-accent);
}
.accordion.faq-acc .accordion-button::after{
  background-image:none;
  content:"+";
  font-family:var(--ff);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--c-ink-soft);
  width:auto;height:auto;
  transform:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:transform .22s ease,color .18s ease;
}
.accordion.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:rotate(180deg);
  color:var(--c-accent);
}
.accordion.faq-acc .accordion-button:focus{box-shadow:none;outline:none;}
.accordion.faq-acc .accordion-body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-mute);
  max-width:720px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:56px 56px;
  position:relative;
  overflow:hidden;
  color:var(--c-text-invert);
  display:grid;
  grid-template-columns:1.4fr .8fr;
  gap:40px;
  align-items:center;
  box-shadow:var(--sh-1);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-110px;
  width:320px;height:320px;
  border-radius:50%;
  background:rgba(201,242,105,.13);
}
.cta-band h2{
  font-size:32px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  position:relative;
  z-index:1;
}
.cta-band p{
  margin-top:14px;
  font-size:16px;
  color:rgba(246,244,239,.85);
  max-width:520px;
  position:relative;
  z-index:1;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:28px;
  position:relative;
  z-index:1;
}
.cta-badge{
  position:relative;
  z-index:1;
  background:var(--grad-badge);
  color:var(--c-ink-deep);
  border-radius:20px;
  padding:22px 24px;
  box-shadow:var(--sh-3);
  justify-self:end;
  min-width:200px;
}
.cta-badge .num{
  font-family:var(--ff-mono);
  font-variant-numeric:tabular-nums;
  font-size:38px;
  font-weight:700;
  line-height:1.1;
}
.cta-badge .num small{font-size:14px;font-weight:600;margin-left:2px;}
.cta-badge .cap{
  font-size:13px;
  font-weight:600;
  margin-top:6px;
  color:rgba(11,38,33,.72);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink-deep);
  color:rgba(246,244,239,.7);
  position:relative;
  margin-top:88px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:var(--grad-brand);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:40px;
  padding-block:64px 44px;
}
.footer-brand .brand{
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(246,244,239,.66);
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul li{
  font-size:14px;
  line-height:1.7;
  margin-bottom:10px;
  color:rgba(246,244,239,.66);
}
.footer-col ul li a{
  color:rgba(246,244,239,.7);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-col ul li a:hover{
  color:#fff;
  border-bottom-color:rgba(246,244,239,.8);
}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.12);
  padding-block:22px 30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  font-size:11px;
  color:rgba(246,244,239,.5);
  line-height:1.7;
}
.footer-bottom .contact-line{font-family:var(--ff-mono);letter-spacing:.02em;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:35px;}
  .section-title{font-size:30px;}
  .cta-band{padding:44px;}
}
@media (max-width:991.98px){
  .container{padding-inline:24px;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .nav-menu{
    position:fixed;
    top:0;right:0;bottom:0;
    width:290px;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:88px 22px 28px;
    transform:translateX(100%);
    transition:transform .28s ease;
    z-index:1050;
    box-shadow:-12px 0 40px rgba(11,38,33,.18);
    overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateX(0);}
  .nav-item{
    height:48px;
    padding:0 16px;
    border-radius:14px;
    font-size:15px;
  }
  .nav-item::after{display:none;}
  .nav-item.is-active{background:var(--c-ink);color:#fff;}
  .nav-menu .nav-cta{
    display:inline-flex;
    margin-top:18px;
    width:100%;
  }
  .material-wrap{grid-template-columns:1fr;}
  .split-block{grid-template-columns:1fr;gap:32px;}
  .point-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-badge{justify-self:start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-block:48px 32px;}
  .section{padding-block:68px;}
}
@media (max-width:767.98px){
  .page-hero h1{font-size:30px;}
  .page-hero .hero-sub{font-size:15.5px;}
  .section-title{font-size:26px;}
  .split-body h2{font-size:25px;}
  .cta-band h2{font-size:25px;}
  .check-grid{grid-template-columns:1fr;}
  .topbar{font-size:12px;}
  .topbar-inner{gap:10px 18px;}
  .topbar-link{margin-left:0;}
  .timeline{padding-left:34px;}
  .timeline::before{left:9px;}
  .tl-item::before{left:-34px;}
  .tl-card{padding:22px 20px;}
}
@media (max-width:575.98px){
  .container{padding-inline:20px;}
  .section{padding-block:54px;}
  .page-hero .container{padding-block:32px 40px;}
  .page-hero h1{font-size:26px;}
  .btn{height:44px;padding:0 22px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .check-card,.tip-card{padding:24px 20px;}
  .tl-title{font-size:18px;}
  .accordion.faq-acc .accordion-button{font-size:15.5px;padding:18px 18px;}
  .accordion.faq-acc .accordion-body{padding:0 18px 18px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category2 */
:root{
  --c-ink:#123A33;
  --c-ink-deep:#0B2621;
  --c-ink-soft:#1F6B5C;
  --c-accent:#FF7A45;
  --c-accent-2:#FFB03A;
  --c-lime:#C9F269;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDF4F0;
  --c-line:#E3DFD6;
  --c-text:#1B2A26;
  --c-text-mute:#5E6E68;
  --c-text-invert:#F6F4EF;
  --grad-brand:linear-gradient(135deg,#123A33 0%,#1F6B5C 58%,#2E9E7E 100%);
  --grad-action:linear-gradient(135deg,#FF7A45 0%,#FFB03A 100%);
  --grad-badge:linear-gradient(120deg,#C9F269 0%,#7FE3A6 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh:0 8px 24px rgba(18,58,51,.07);
  --sh-hover:0 16px 40px rgba(18,58,51,.14);
  --sh-float:0 10px 26px rgba(18,58,51,.16);
  --bs-primary:#123A33;
  --bs-primary-rgb:18,58,51;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1B2A26;
  --bs-border-radius:14px;
  --bs-link-color:#1F6B5C;
  --bs-link-hover-color:#123A33;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-ink-soft);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-ink)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media(max-width:767px){.container{padding:0 20px}}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--c-ink);
  color:var(--c-text-invert);
  font-size:13px;
  line-height:1.5;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:40px;
  padding-top:8px;
  padding-bottom:8px;
  flex-wrap:wrap;
}
.live-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-lime);
  flex:0 0 auto;
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.45;transform:scale(.82)}
}
.topbar-text{opacity:.92}
.countdown{
  margin-left:auto;
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:13px;
  padding:3px 12px;
  border-radius:999px;
  background:rgba(246,244,239,.12);
  border:1px solid rgba(246,244,239,.18);
  white-space:nowrap;
}
.topbar-link{
  color:var(--c-lime);
  font-weight:600;
  border-bottom:1px solid rgba(201,242,105,.4);
  padding-bottom:1px;
}
.topbar-link:hover{color:#fff;border-bottom-color:#fff}
@media(max-width:767px){
  .countdown{display:none}
  .topbar-inner{font-size:12px}
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(18,58,51,.08)}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--c-ink);
}
.brand-mark{
  width:32px;height:32px;
  border-radius:10px;
  background:var(--grad-brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:14px;
  box-shadow:0 6px 14px rgba(18,58,51,.22);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-item::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-item:hover{color:var(--c-ink);background:var(--c-surface-alt)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.is-active{
  background:var(--c-ink);
  color:#fff;
}
.nav-item.is-active::after{display:none}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 24px;
  border-radius:999px;
  background:var(--c-accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:0 8px 18px rgba(255,122,69,.26);
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease;
  flex:0 0 auto;
}
.nav-cta:hover{
  background:var(--grad-action);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 24px rgba(255,122,69,.32);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:14px;
  color:var(--c-ink);
  font-size:17px;
  margin-left:auto;
  cursor:pointer;
}
.drawer-cta{display:none}
.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(11,38,33,.42);
  opacity:0;
  pointer-events:none;
  transition:opacity .26s ease;
  z-index:110;
}
.nav-mask.is-open{opacity:1;pointer-events:auto}
@media(max-width:991px){
  .header-inner{min-height:66px;gap:12px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-menu{
    position:fixed;
    top:0;right:0;bottom:0;
    width:min(320px,86vw);
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:88px 22px 26px;
    transform:translateX(102%);
    transition:transform .28s ease;
    box-shadow:-18px 0 44px rgba(11,38,33,.2);
    z-index:120;
    overflow-y:auto;
    margin-left:0;
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-item{
    min-height:48px;
    padding:0 16px;
    border-radius:14px;
    font-size:16px;
  }
  .nav-item::after{display:none}
  .drawer-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    margin-top:18px;
    min-height:48px;
    border-radius:999px;
    background:var(--c-accent);
    color:#fff;
    font-weight:600;
  }
  .drawer-cta:hover{background:var(--grad-action);color:#fff}
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  color:var(--c-text-invert);
  background-image:linear-gradient(112deg,rgba(11,38,33,.94) 0%,rgba(18,58,51,.88) 46%,rgba(31,107,92,.74) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  padding:52px 0 62px;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,105,.16) 0%,rgba(201,242,105,0) 68%);
  pointer-events:none;
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(246,244,239,.66);
  margin-bottom:26px;
  position:relative;
  z-index:1;
}
.breadcrumb-line a{color:rgba(246,244,239,.72)}
.breadcrumb-line a:hover{color:#fff}
.breadcrumb-line .current{color:var(--c-lime);font-weight:600}
.hero-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:48px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--c-ink);
  background:var(--grad-badge);
  margin-bottom:18px;
}
.page-hero h1{
  font-size:44px;
  line-height:1.16;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:rgba(246,244,239,.84);
  max-width:560px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  cursor:pointer;
  border:0;
}
.btn-main{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 10px 22px rgba(255,122,69,.28);
}
.btn-main:hover{background:var(--grad-action);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px rgba(255,122,69,.34)}
.btn-ghost{
  background:transparent;
  border:1.5px solid var(--c-ink);
  color:var(--c-ink);
}
.btn-ghost:hover{background:var(--c-ink);color:#fff}
.page-hero .btn-ghost{
  border-color:rgba(246,244,239,.55);
  color:var(--c-text-invert);
}
.page-hero .btn-ghost:hover{background:#fff;border-color:#fff;color:var(--c-ink)}
.btn-line{
  min-height:auto;
  padding:0;
  background:none;
  color:var(--c-ink-soft);
  border-radius:0;
}
.btn-line i{transition:transform .2s ease;font-size:13px}
.btn-line:hover{color:var(--c-accent)}
.btn-line:hover i{transform:translateX(4px)}
.hero-side{position:relative}
.spec-card{
  background:rgba(255,255,255,.97);
  border-radius:var(--r-lg);
  padding:26px 26px 22px;
  color:var(--c-text);
  box-shadow:var(--sh-float);
  border:1px solid rgba(227,223,214,.7);
}
.spec-card .badge-lime{
  display:inline-flex;
  align-items:center;
  padding:5px 13px;
  border-radius:999px;
  background:var(--grad-badge);
  color:var(--c-ink);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.spec-card h2{
  font-size:19px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:16px;
  color:var(--c-ink);
}
.spec-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 0;
  border-top:1px dashed var(--c-line);
  font-size:14px;
}
.spec-list li:first-child{border-top:0;padding-top:0}
.spec-list span{color:var(--c-text-mute)}
.spec-list strong{color:var(--c-ink);font-weight:600}
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-top:16px;
  padding:10px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.94);
  border:1px solid rgba(227,223,214,.9);
  color:var(--c-ink);
  font-size:13px;
  font-weight:600;
  box-shadow:var(--sh);
}
.status-chip .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-lime);
  box-shadow:0 0 0 3px rgba(201,242,105,.32);
}
@media(max-width:991px){
  .page-hero{padding:38px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero h1{font-size:32px}
  .hero-sub{font-size:16px}
}
@media(max-width:575px){
  .page-hero h1{font-size:27px}
  .hero-actions{gap:10px}
  .btn-main,.btn-ghost{padding:0 20px;min-height:46px;font-size:14.5px;flex:1 1 auto}
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--c-surface-alt)}
.section-dark{
  background:var(--c-ink-deep);
  color:var(--c-text-invert);
  position:relative;
  overflow:hidden;
}
.section-dark::before{
  content:"";
  position:absolute;
  left:-160px;bottom:-200px;
  width:480px;height:480px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,158,126,.24) 0%,rgba(46,158,126,0) 70%);
  pointer-events:none;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:36px;
  margin-bottom:44px;
  position:relative;
  z-index:1;
}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--c-ink-soft);
  margin-bottom:12px;
  padding-left:12px;
  position:relative;
}
.eyebrow::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:14px;
  border-radius:3px;
  background:var(--c-accent);
}
.section-dark .eyebrow{color:var(--c-lime)}
.section-head h2{
  font-size:34px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:560px;
}
.section-dark .section-head h2{color:#fff}
.section-desc{
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-mute);
  max-width:380px;
}
.section-dark .section-desc{color:rgba(246,244,239,.66)}
@media(max-width:991px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .section-head h2{font-size:26px}
  .section-desc{max-width:100%}
}
@media(max-width:575px){
  .section{padding:56px 0}
  .section-head h2{font-size:23px}
}

/* ---------- 渠道卡片墙 ---------- */
.channel-layout{
  display:grid;
  grid-template-columns:210px 1fr;
  gap:32px;
  position:relative;
  z-index:1;
}
.filter-rail{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.filter-pill{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:44px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid rgba(246,244,239,.22);
  background:rgba(246,244,239,.07);
  color:rgba(246,244,239,.82);
  font-size:14px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.filter-pill::after{
  content:"\f105";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:12px;
  opacity:.6;
}
.filter-pill:hover{
  background:rgba(246,244,239,.14);
  border-color:rgba(201,242,105,.5);
  color:#fff;
  transform:translateX(2px);
}
.filter-pill.is-on{
  background:var(--grad-badge);
  border-color:transparent;
  color:var(--c-ink);
}
.filter-pill.is-on::after{opacity:.9}
.channel-wall{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.channel-card{
  background:var(--c-surface);
  border-radius:var(--r-md);
  border:1px solid rgba(227,223,214,.9);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  position:relative;
  transition:transform .2s ease,box-shadow .2s ease;
  box-shadow:0 6px 18px rgba(11,38,33,.16);
}
.channel-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--grad-action);
  opacity:0;
  transition:opacity .18s ease;
  z-index:2;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(11,38,33,.3)}
.channel-card:hover::before{opacity:1}
.channel-card.is-wide{grid-column:span 2}
.cc-media{
  aspect-ratio:16/9;
  margin:8px 8px 0;
  border-radius:14px;
  overflow:hidden;
  background:var(--c-surface-alt);
}
.cc-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.channel-card.is-wide .cc-media{aspect-ratio:21/8}
.cc-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.cc-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:10px;
}
.cc-top h3{
  font-size:18px;
  font-weight:600;
  color:var(--c-ink);
}
.mini-badge{
  flex:0 0 auto;
  padding:4px 11px;
  border-radius:999px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  font-size:12px;
  font-weight:700;
  letter-spacing:.01em;
}
.channel-card p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-text-mute);
  margin-bottom:16px;
}
.cc-list{display:flex;flex-direction:column;gap:8px;margin-top:auto}
.cc-list li{
  position:relative;
  padding-left:16px;
  font-size:13.5px;
  color:var(--c-text);
}
.cc-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--c-ink-soft);
}
@media(max-width:1199px){
  .channel-wall{grid-template-columns:repeat(2,minmax(0,1fr))}
  .channel-card.is-wide{grid-column:span 2}
}
@media(max-width:991px){
  .channel-layout{grid-template-columns:1fr;gap:24px}
  .filter-rail{flex-direction:row;flex-wrap:wrap}
  .filter-pill{min-height:40px;padding:0 16px;font-size:13.5px}
  .filter-pill::after{display:none}
  .channel-card.is-wide .cc-media{aspect-ratio:16/9}
}
@media(max-width:575px){
  .channel-wall{grid-template-columns:1fr}
  .channel-card.is-wide{grid-column:span 1}
  .cc-body{padding:20px 20px 22px}
}

/* ---------- 接入流程时间轴 ---------- */
.timeline{
  position:relative;
  max-width:860px;
  margin:0 auto;
}
.timeline::before{
  content:"";
  position:absolute;
  left:22px;
  top:14px;
  bottom:14px;
  width:2px;
  background:linear-gradient(180deg,var(--c-accent) 0%,var(--c-line) 42%,var(--c-line) 100%);
  border-radius:2px;
}
.tl-item{
  position:relative;
  padding-left:66px;
  margin-bottom:26px;
}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;
  left:12px;
  top:26px;
  width:22px;height:22px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--c-accent);
  box-shadow:0 0 0 5px rgba(255,122,69,.12);
  z-index:1;
}
.tl-dot::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-accent);
  transform:translate(-50%,-50%);
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px 26px;
  box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(31,107,92,.28)}
.tl-num{
  display:inline-block;
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--c-accent);
  margin-bottom:8px;
}
.tl-card h3{
  font-size:19px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:8px;
}
.tl-card p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-text-mute);
}
.code-block{
  margin-top:16px;
  background:var(--c-ink);
  border-radius:var(--r-sm);
  padding:16px 18px;
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:13.5px;
  line-height:1.9;
  color:rgba(246,244,239,.9);
  overflow-x:auto;
}
.code-block .k{color:var(--c-lime)}
.code-block .v{color:rgba(246,244,239,.72)}
@media(max-width:575px){
  .timeline::before{left:14px}
  .tl-item{padding-left:48px}
  .tl-dot{left:4px;top:24px;width:20px;height:20px}
  .tl-card{padding:20px}
  .tl-card h3{font-size:17px}
}

/* ---------- 材料清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  max-width:900px;
  margin:0 auto;
}
.check-item{
  display:flex;
  align-items:flex-start;
  gap:13px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  padding:16px 18px;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.check-item:hover{border-color:var(--c-ink-soft);transform:translateY(-2px);box-shadow:var(--sh)}
.check-item i{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:7px;
  background:var(--grad-badge);
  color:var(--c-ink);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  margin-top:2px;
}
.check-item strong{
  display:block;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:2px;
}
.check-item span{
  display:block;
  font-size:13px;
  line-height:1.65;
  color:var(--c-text-mute);
}
.check-note{
  max-width:900px;
  margin:22px auto 0;
  text-align:center;
  font-size:13.5px;
  color:var(--c-text-mute);
}
@media(max-width:767px){
  .check-grid{grid-template-columns:1fr}
}

/* ---------- 规格对比 ---------- */
.spec-row{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-bottom:44px;
}
.spec-box{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.spec-box:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.spec-box .num{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:34px;
  font-weight:700;
  color:var(--c-accent);
  line-height:1.1;
}
.spec-box .num small{
  font-size:13px;
  font-weight:600;
  color:var(--c-text-mute);
  margin-left:4px;
  font-family:system-ui,"PingFang SC",sans-serif;
}
.spec-box h4{
  font-size:15px;
  font-weight:600;
  color:var(--c-ink);
  margin:10px 0 6px;
}
.spec-box p{font-size:13.5px;line-height:1.7;color:var(--c-text-mute)}
.compare-cards{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.compare-card{
  background:var(--c-surface);
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.compare-card .cm-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-alt)}
.compare-card .cm-media img{width:100%;height:100%;object-fit:cover}
.compare-card .cm-body{padding:20px 22px 24px}
.compare-card h3{font-size:17px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.compare-card p{font-size:14px;line-height:1.75;color:var(--c-text-mute);margin-bottom:14px}
@media(max-width:1199px){
  .spec-row{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:991px){
  .compare-cards{grid-template-columns:1fr}
}
@media(max-width:575px){
  .spec-row{grid-template-columns:1fr}
  .spec-box .num{font-size:30px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-wrap .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:16px !important;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:0 4px 14px rgba(18,58,51,.05);
}
.faq-wrap .accordion-item:last-child{margin-bottom:0}
.faq-wrap .accordion-button{
  background:var(--c-surface);
  color:var(--c-ink);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:20px 22px;
  box-shadow:none;
  border-radius:16px !important;
  position:relative;
}
.faq-wrap .accordion-button::after{
  content:"+";
  background-image:none;
  font-family:system-ui,sans-serif;
  font-size:22px;
  font-weight:400;
  width:26px;height:26px;
  line-height:1;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--c-ink-soft);
  transform:none;
  transition:transform .22s ease,color .22s ease;
}
.faq-wrap .accordion-button:not(.collapsed){
  color:var(--c-ink);
  background:var(--c-surface);
  box-shadow:none;
}
.faq-wrap .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:rotate(180deg);
  color:var(--c-accent);
}
.faq-wrap .accordion-button:focus{
  box-shadow:none;
  border-color:transparent;
  outline:2px solid var(--c-ink-soft);
  outline-offset:-2px;
}
.faq-wrap .accordion-button:not(.collapsed){
  border-left:3px solid var(--c-accent);
  padding-left:19px;
}
.faq-wrap .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-mute);
}
.faq-wrap .accordion-collapse{border:0}
@media(max-width:575px){
  .faq-wrap .accordion-button{font-size:15.5px;padding:17px 18px}
  .faq-wrap .accordion-button:not(.collapsed){padding-left:15px}
  .faq-wrap .accordion-body{padding:0 18px 18px;font-size:14.5px}
}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 96px}
.cta-card{
  position:relative;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:56px 56px;
  color:var(--c-text-invert);
  overflow:hidden;
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-80px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,105,.22) 0%,rgba(201,242,105,0) 70%);
}
.cta-card h2{
  font-size:32px;
  line-height:1.3;
  font-weight:700;
  margin-bottom:14px;
  color:#fff;
}
.cta-card p{
  font-size:15.5px;
  line-height:1.8;
  color:rgba(246,244,239,.82);
  margin-bottom:26px;
  max-width:520px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-card .btn-ghost{
  border-color:rgba(246,244,239,.55);
  color:var(--c-text-invert);
}
.cta-card .btn-ghost:hover{background:#fff;border-color:#fff;color:var(--c-ink)}
.cta-badge{
  position:relative;
  z-index:1;
  justify-self:end;
  background:var(--grad-badge);
  color:var(--c-ink);
  border-radius:var(--r-md);
  padding:22px 26px;
  box-shadow:var(--sh-float);
  text-align:center;
  min-width:190px;
}
.cta-badge .big{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:36px;
  font-weight:700;
  line-height:1.1;
}
.cta-badge .lbl{font-size:13px;font-weight:600;margin-top:4px;color:rgba(18,58,51,.78)}
@media(max-width:991px){
  .cta-section{padding:0 0 72px}
  .cta-card{grid-template-columns:1fr;padding:38px 28px;gap:28px}
  .cta-card h2{font-size:25px}
  .cta-badge{justify-self:start;text-align:left}
}
@media(max-width:575px){
  .cta-section{padding:0 0 56px}
  .cta-card{padding:30px 22px;border-radius:22px}
  .cta-card h2{font-size:22px}
  .cta-actions{gap:10px}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto;padding:0 18px;font-size:14.5px}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink-deep);
  color:var(--c-text-invert);
  border-top:4px solid transparent;
  border-image:var(--grad-brand) 1;
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(246,244,239,.66);
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li:last-child{margin-bottom:0}
.footer-col a{
  font-size:14px;
  color:rgba(246,244,239,.7);
  transition:color .18s ease;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-col span{
  font-size:13.5px;
  color:rgba(246,244,239,.62);
  line-height:1.7;
  display:block;
}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.12);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  font-size:11px;
  color:rgba(246,244,239,.5);
}
.contact-line{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  letter-spacing:.02em;
}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding:56px 0 24px}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr}
  .footer-brand p{max-width:100%}
}

/* roulang page: category3 */
:root{
  --c-ink:#123A33;
  --c-ink-deep:#0B2621;
  --c-ink-soft:#1F6B5C;
  --c-accent:#FF7A45;
  --c-accent-2:#FFB03A;
  --c-lime:#C9F269;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDF4F0;
  --c-line:#E3DFD6;
  --c-text:#1B2A26;
  --c-text-mute:#5E6E68;
  --c-text-invert:#F6F4EF;
  --grad-brand:linear-gradient(135deg,#123A33 0%,#1F6B5C 58%,#2E9E7E 100%);
  --grad-action:linear-gradient(135deg,#FF7A45 0%,#FFB03A 100%);
  --grad-badge:linear-gradient(120deg,#C9F269 0%,#7FE3A6 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh-1:0 8px 24px rgba(18,58,51,.07);
  --sh-2:0 16px 40px rgba(18,58,51,.14);
  --ease:180ms ease;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1B2A26;
  --bs-primary:#123A33;
  --bs-border-radius:14px;
  --bs-link-color:#1F6B5C;
  --bs-link-hover-color:#123A33;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--c-ink-soft);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:3px;border-radius:6px;}
.mono{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-variant-numeric:tabular-nums;}
.container{max-width:1200px;padding-left:32px;padding-right:32px;}

/* ---------- 顶部活动条 ---------- */
.topbar{background:var(--c-ink);color:var(--c-text-invert);font-size:13px;}
.topbar-inner{display:flex;align-items:center;gap:18px;height:40px;overflow:hidden;}
.topbar-status{display:inline-flex;align-items:center;gap:9px;font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-lime);flex:0 0 auto;animation:breathe 2.4s ease-in-out infinite;}
@keyframes breathe{
  0%,100%{box-shadow:0 0 0 0 rgba(201,242,105,.42);}
  50%{box-shadow:0 0 0 7px rgba(201,242,105,0);}
}
.topbar-timer{margin-left:auto;opacity:.88;white-space:nowrap;}
.topbar-timer .mono{color:var(--c-lime);}
.topbar-link{color:var(--c-lime);white-space:nowrap;border-bottom:1px solid transparent;padding-bottom:1px;}
.topbar-link:hover{color:var(--c-lime);border-bottom-color:var(--c-lime);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,58,51,.09);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-size:14px;
  box-shadow:0 6px 14px rgba(18,58,51,.22);
}
.brand-text{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-item{
  position:relative;
  padding:9px 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--c-text);
  white-space:nowrap;
}
.nav-item::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--c-accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-item:hover{color:var(--c-ink);background:var(--c-surface-alt);}
.nav-item:hover::after{transform:scaleX(1);}
.nav-item.is-active{background:var(--c-ink);color:#fff;}
.nav-item.is-active::after{display:none;}
.nav-item.is-active:hover{background:var(--c-ink);color:#fff;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:all var(--ease);
}
.btn-primary-brand{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,69,.26);}
.btn-primary-brand:hover{background:var(--grad-action);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,69,.32);}
.btn-primary-brand:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink);}
.btn-ghost:hover{background:var(--c-ink);color:#fff;}
.btn-ghost-light{background:transparent;border-color:rgba(246,244,239,.55);color:var(--c-text-invert);}
.btn-ghost-light:hover{background:rgba(246,244,239,.14);color:#fff;border-color:var(--c-text-invert);}
.btn-sm{height:44px;padding:0 22px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
  transition:all var(--ease);
}
.nav-toggle:hover{background:var(--c-surface-alt);color:var(--c-ink);}

/* ---------- 抽屉导航 ---------- */
.offcanvas.drawer{width:320px;max-width:86vw;background:var(--c-surface);border-left:1px solid var(--c-line);}
.drawer .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--c-line);}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink);}
.btn-drawer-close{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);
  display:grid;place-items:center;font-size:15px;cursor:pointer;transition:all var(--ease);
}
.btn-drawer-close:hover{background:var(--c-surface-alt);}
.drawer .offcanvas-body{padding:16px;}
.drawer-item{
  display:block;padding:13px 16px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--c-text);
}
.drawer-item:hover{background:var(--c-surface-alt);color:var(--c-ink);}
.drawer-item.is-active{background:var(--c-ink);color:#fff;}
.drawer-cta{margin-top:18px;width:100%;}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:40px 0 56px;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;
  width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,107,92,.13),rgba(31,107,92,0) 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-mute);margin-bottom:22px;flex-wrap:wrap;}
.crumb a:hover{color:var(--c-ink);}
.crumb-sep{color:var(--c-line);}
.crumb-current{color:var(--c-ink);font-weight:600;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:var(--c-surface-alt);color:var(--c-ink-soft);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag-light{background:rgba(201,242,105,.16);color:var(--c-lime);}
.page-hero h1{font-size:48px;line-height:1.15;margin:18px 0 16px;max-width:17em;}
.hero-lead{font-size:17px;line-height:1.75;color:var(--c-text-mute);max-width:36em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--c-surface);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:36px;line-height:1.25;margin-top:16px;}
.section-head p{margin-top:16px;font-size:16px;color:var(--c-text-mute);}

/* ---------- 功能卡片 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{
  position:relative;overflow:hidden;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.feature-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:var(--grad-action);opacity:0;transition:opacity var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.feature-card:hover::before{opacity:1;}
.feature-icon{
  width:46px;height:46px;border-radius:14px;
  background:var(--c-surface-alt);color:var(--c-ink-soft);
  display:grid;place-items:center;font-size:18px;
}
.feature-card h3{font-size:18px;font-weight:600;margin:16px 0 8px;line-height:1.4;}
.feature-card p{font-size:14.5px;line-height:1.72;color:var(--c-text-mute);}
.feature-card.is-wide{
  grid-column:span 2;
  display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:flex-start;
  background:linear-gradient(135deg,#FFFFFF 0%,#F4FAF6 100%);
}
.feature-card.is-wide h3{margin-top:0;}
.mini-badge{
  display:inline-flex;margin-top:16px;
  padding:5px 12px;border-radius:999px;
  background:var(--grad-badge);color:var(--c-ink);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ---------- 深色控制台带 ---------- */
.console-band{position:relative;overflow:hidden;padding:88px 0;background:var(--c-ink-deep);color:var(--c-text-invert);}
.console-band-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3;}
.console-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,38,33,.95) 0%,rgba(11,38,33,.8) 52%,rgba(31,107,92,.66) 100%);
}
.console-band .container{position:relative;z-index:2;}
.console-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.console-copy h2{font-size:34px;line-height:1.3;color:var(--c-text-invert);margin-top:18px;}
.console-copy p{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(246,244,239,.76);max-width:34em;}
.check-list{margin-top:26px;display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.7;color:rgba(246,244,239,.9);}
.check-list li i{color:var(--c-lime);font-size:15px;margin-top:5px;flex:0 0 auto;}
.console-stats{display:grid;gap:16px;}
.stat-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(246,244,239,.16);
  border-radius:var(--r-md);
  padding:22px 26px;
  transition:background-color var(--ease),transform var(--ease);
}
.stat-card:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
.stat-num{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-variant-numeric:tabular-nums;font-size:38px;font-weight:700;color:var(--c-lime);line-height:1.1;}
.stat-unit{font-size:13px;font-weight:600;color:rgba(246,244,239,.7);margin-left:6px;}
.stat-card p{font-size:14px;color:rgba(246,244,239,.72);margin-top:6px;}

/* ---------- 三步流程 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{
  position:relative;overflow:hidden;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:30px 26px 26px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-num{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:44px;font-weight:700;line-height:1;
  color:rgba(31,107,92,.2);
}
.step-card h3{font-size:19px;font-weight:600;margin:14px 0 10px;}
.step-card p{font-size:14.5px;line-height:1.72;color:var(--c-text-mute);}
.step-card .step-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:18px;font-size:14px;font-weight:600;color:var(--c-ink-soft);
}
.step-card .step-link i{transition:transform var(--ease);font-size:12px;}
.step-card .step-link:hover{color:var(--c-ink);}
.step-card .step-link:hover i{transform:translateX(4px);}

/* ---------- 设备支持 ---------- */
.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.support-media img{
  width:100%;border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  aspect-ratio:16/9;object-fit:cover;
}
.support-copy h2{font-size:34px;line-height:1.28;margin-top:16px;}
.support-copy > p{margin-top:16px;color:var(--c-text-mute);font-size:16px;line-height:1.8;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:13.5px;font-weight:600;color:var(--c-ink);
  transition:all var(--ease);
}
.chip i{color:var(--c-ink-soft);font-size:13px;}
.chip:hover{border-color:var(--c-ink-soft);background:var(--c-surface-alt);transform:translateY(-2px);}
.support-note{
  margin-top:26px;padding:18px 20px;
  border-left:3px solid var(--c-ink-soft);
  background:var(--c-surface-alt);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:14.5px;line-height:1.75;color:var(--c-text-mute);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-wrap .accordion-item{
  border:0;background:var(--c-surface);
  border-radius:16px !important;
  margin-bottom:12px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow var(--ease);
}
.faq-wrap .accordion-item:hover{box-shadow:var(--sh-2);}
.faq-wrap .accordion-button{
  padding:20px 24px;
  font-size:17px;font-weight:600;color:var(--c-ink);
  background:var(--c-surface);
  border-radius:16px !important;
  box-shadow:none;
  transition:background-color var(--ease),color var(--ease),padding-left var(--ease);
}
.faq-wrap .accordion-button:not(.collapsed){
  color:var(--c-ink);
  background:var(--c-surface);
  box-shadow:none;
  border-left:3px solid var(--c-accent);
  padding-left:21px;
}
.faq-wrap .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-wrap .accordion-button:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:-3px;}
.faq-wrap .accordion-button::after{
  content:"+";background-image:none;
  width:auto;height:auto;
  font-size:22px;font-weight:400;line-height:1;
  color:var(--c-ink-soft);transform:none;
  display:flex;align-items:center;justify-content:center;
}
.faq-wrap .accordion-button:not(.collapsed)::after{content:"−";color:var(--c-accent);transform:none;}
.faq-wrap .accordion-body{
  padding:0 24px 22px;
  font-size:15px;line-height:1.8;color:var(--c-text-mute);
}

/* ---------- CTA 大卡 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:56px 48px;
  color:var(--c-text-invert);
  display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
  box-shadow:0 20px 44px rgba(18,58,51,.22);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-120px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,105,.24),rgba(201,242,105,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:32px;line-height:1.3;color:var(--c-text-invert);}
.cta-copy p{margin-top:14px;font-size:16px;color:rgba(246,244,239,.8);max-width:34em;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}
.cta-badge{
  position:absolute;right:44px;top:26px;z-index:2;
  padding:7px 16px;border-radius:999px;
  background:var(--grad-badge);color:var(--c-ink);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 10px 26px rgba(18,58,51,.18);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--c-ink-deep);
  color:var(--c-text-invert);
  padding:64px 0 0;
  margin-top:96px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--grad-brand);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(246,244,239,.7);max-width:30em;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;line-height:1.6;color:rgba(246,244,239,.7);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.14);
  padding:20px 0 24px;
  display:flex;flex-wrap:wrap;gap:8px 24px;
  font-size:11px;line-height:1.7;color:rgba(246,244,239,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-item{padding:9px 11px;font-size:14px;}
  .feature-grid{gap:20px;}
}
@media (max-width:991px){
  .container{padding-left:24px;padding-right:24px;}
  .nav-menu{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;gap:16px;}
  .header-actions .btn-primary-brand{height:44px;padding:0 20px;font-size:14px;}
  .page-hero{padding:32px 0 48px;}
  .page-hero h1{font-size:34px;max-width:100%;}
  .section{padding:72px 0;}
  .section-head h2{font-size:28px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .feature-card.is-wide{grid-column:span 2;}
  .console-band{padding:64px 0;}
  .console-inner{grid-template-columns:1fr;gap:36px;}
  .console-copy h2{font-size:28px;}
  .step-grid{grid-template-columns:1fr;}
  .support-grid{grid-template-columns:1fr;gap:32px;}
  .support-copy h2{font-size:28px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;gap:24px;}
  .cta-badge{position:static;display:inline-flex;margin-bottom:6px;}
  .cta-copy h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{margin-top:72px;padding-top:56px;}
}
@media (max-width:767px){
  .topbar-timer{display:none;}
  .topbar-inner{height:36px;font-size:12px;gap:10px;}
  .topbar-link{margin-left:auto;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card.is-wide{grid-column:span 1;grid-template-columns:1fr;gap:14px;}
  .page-hero h1{font-size:28px;line-height:1.25;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .section-head h2{font-size:25px;}
  .feature-card{padding:24px;}
  .stat-num{font-size:32px;}
  .cta-band{padding:32px 22px;border-radius:22px;}
  .cta-actions .btn{width:100%;}
  .btn{height:46px;padding:0 22px;}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
  .brand-text{font-size:15.5px;}
  .header-inner{gap:10px;}
  .header-actions .btn-primary-brand{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .chip{font-size:13px;padding:8px 14px;}
}

/* roulang page: category4 */
:root{
  --c-ink:#123A33;
  --c-ink-deep:#0B2621;
  --c-ink-soft:#1F6B5C;
  --c-accent:#FF7A45;
  --c-accent-2:#FFB03A;
  --c-lime:#C9F269;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDF4F0;
  --c-line:#E3DFD6;
  --c-text:#1B2A26;
  --c-text-mute:#5E6E68;
  --c-text-invert:#F6F4EF;
  --grad-brand:linear-gradient(135deg,#123A33 0%,#1F6B5C 58%,#2E9E7E 100%);
  --grad-action:linear-gradient(135deg,#FF7A45 0%,#FFB03A 100%);
  --grad-badge:linear-gradient(120deg,#C9F269 0%,#7FE3A6 100%);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:14px;
  --sh-1:0 8px 24px rgba(18,58,51,.07);
  --sh-2:0 16px 40px rgba(18,58,51,.14);
  --sh-3:0 10px 26px rgba(18,58,51,.16);
  --bs-primary:#123A33;
  --bs-body-bg:#F6F4EF;
  --bs-body-color:#1B2A26;
  --bs-border-radius:14px;
  --bs-link-color:#1F6B5C;
  --bs-link-hover-color:#123A33;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-ink-soft);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-ink)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:3px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--c-ink);
  color:var(--c-text-invert);
  font-size:13px;
}
.topbar-inner{
  min-height:40px;
  display:flex;
  align-items:center;
  gap:24px;
}
.topbar-status{display:inline-flex;align-items:center;gap:8px;color:rgba(246,244,239,.9)}
.topbar-status .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-lime);
  box-shadow:0 0 0 4px rgba(201,242,105,.16);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.55;transform:scale(.85)}
}
.topbar-timer{
  margin-left:auto;
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-variant-numeric:tabular-nums;
  color:rgba(246,244,239,.78);
  letter-spacing:.02em;
}
.topbar-timer b{color:var(--c-lime);font-weight:700;margin-left:6px}
.topbar-link{
  color:rgba(246,244,239,.85);
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.topbar-link:hover{color:#fff}
/* ---------- 导航 ---------- */
.site-header{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  position:sticky;
  top:0;
  z-index:1030;
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-ink);
  font-weight:700;
  font-size:18px;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-brand);
  color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;
  box-shadow:0 6px 14px rgba(18,58,51,.18);
}
.brand-text{font-size:18px}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-item{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  padding:9px 14px;
  border-radius:999px;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-item::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
}
.nav-item:hover{background:var(--c-surface-alt);color:var(--c-ink)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.is-active{
  background:var(--c-ink);
  color:#fff;
}
.nav-item.is-active::after{display:none}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  background:var(--c-accent);
  color:#fff;
  font-weight:600;
  font-size:15px;
  border:0;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease;
  box-shadow:0 8px 20px rgba(255,122,69,.24);
}
.btn-cta:hover{
  background:var(--grad-action);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(255,122,69,.32);
}
.btn-cta:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  background:transparent;
  color:var(--c-ink);
  border:1.5px solid var(--c-ink);
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px)}
.btn-ghost.on-dark{color:var(--c-text-invert);border-color:rgba(246,244,239,.6)}
.btn-ghost.on-dark:hover{background:var(--c-text-invert);color:var(--c-ink);border-color:var(--c-text-invert)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  color:var(--c-ink);
  font-size:17px;
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--c-surface-alt)}
/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 48px;
  background:
    radial-gradient(680px 300px at 12% 0%,rgba(237,244,240,.9) 0%,rgba(237,244,240,0) 70%),
    var(--c-bg);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:380px;height:380px;
  border-radius:50%;
  background:var(--grad-brand);
  opacity:.07;
  pointer-events:none;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-mute);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.crumb a{color:var(--c-text-mute)}
.crumb a:hover{color:var(--c-ink)}
.crumb .sep{opacity:.6}
.crumb .current{color:var(--c-ink);font-weight:600}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid rgba(31,107,92,.12);
}
.page-hero h1{
  font-size:44px;
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
  margin:18px 0 14px;
  color:var(--c-ink);
  max-width:900px;
}
.page-hero .lead{
  font-size:17px;
  line-height:1.8;
  color:var(--c-text-mute);
  max-width:720px;
  margin:0;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.stat-badge{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  padding:14px 20px;
  min-width:172px;
  box-shadow:var(--sh-1);
}
.stat-badge .num{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  color:var(--c-accent);
  line-height:1.2;
}
.stat-badge .num span{font-size:13px;color:var(--c-text-mute);font-weight:600;margin-left:4px}
.stat-badge .label{font-size:13px;color:var(--c-text-mute);margin-top:2px}
/* ---------- 搜索 ---------- */
.search-block{padding:0 0 12px}
.search-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-1);
}
.search-box{
  display:flex;
  align-items:center;
  gap:12px;
  background:var(--c-surface-alt);
  border:1px solid transparent;
  border-radius:999px;
  padding:6px 6px 6px 22px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-box:focus-within{
  background:#fff;
  border-color:var(--c-ink-soft);
  box-shadow:0 0 0 3px rgba(201,242,105,.4);
}
.search-box i{color:var(--c-ink-soft);font-size:16px}
.search-box input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  font-size:15.5px;
  color:var(--c-text);
  height:44px;
  outline:none;
}
.search-box input::placeholder{color:#93a09b}
.search-box .btn-cta{height:44px;padding:0 24px;font-size:14.5px}
.hot-tags{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:18px;
}
.hot-tags .tag-label{font-size:13px;color:var(--c-text-mute);font-weight:600}
.tag{
  display:inline-flex;
  align-items:center;
  padding:7px 14px;
  border-radius:999px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  font-size:13px;
  font-weight:600;
  border:1px solid rgba(31,107,92,.1);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.tag:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px)}
.tag:active{transform:translateY(0)}
/* ---------- FAQ 布局 ---------- */
.faq-section{padding:56px 0 72px}
.faq-layout{
  display:grid;
  grid-template-columns:288px 1fr;
  gap:32px;
  align-items:start;
}
.faq-aside{
  position:sticky;
  top:96px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
}
.aside-title{
  font-size:15px;
  font-weight:700;
  color:var(--c-ink);
  margin:0 0 16px;
  letter-spacing:.01em;
}
.group-nav{display:flex;flex-direction:column;gap:8px}
.group-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 16px;
  border-radius:999px;
  background:var(--c-surface-alt);
  color:var(--c-text);
  font-size:14px;
  font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.group-link span.count{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:12px;
  color:var(--c-text-mute);
}
.group-link:hover{background:#e2ede7;color:var(--c-ink);transform:translateX(2px)}
.group-link.is-active{background:var(--c-ink);color:#fff}
.group-link.is-active span.count{color:rgba(246,244,239,.7)}
.aside-note{
  margin-top:22px;
  padding-top:20px;
  border-top:1px dashed var(--c-line);
  font-size:13px;
  color:var(--c-text-mute);
  line-height:1.7;
}
.aside-note strong{display:block;color:var(--c-ink);font-size:14px;margin-bottom:6px}
.faq-main{min-width:0}
.faq-group-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:20px;
  font-weight:700;
  color:var(--c-ink);
  margin:0 0 16px;
}
.faq-group-title::before{
  content:"";
  width:4px;height:20px;
  border-radius:2px;
  background:var(--c-accent);
}
.faq-group + .faq-group{margin-top:36px}
/* accordion 定制 */
.accordion-item{
  position:relative;
  border:1px solid var(--c-line);
  border-radius:16px;
  background:var(--c-surface);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.accordion-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.accordion-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--c-accent);
  opacity:0;
  transition:opacity .18s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1}
.accordion-button{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 24px;
  background:transparent;
  border:0;
  box-shadow:none;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  text-align:left;
  line-height:1.5;
}
.accordion-button:not(.collapsed){
  color:var(--c-ink);
  background:transparent;
  box-shadow:none;
}
.accordion-button:focus{box-shadow:none;outline:none}
.accordion-button:focus-visible{outline:2px solid var(--c-ink-soft);outline-offset:-4px}
.accordion-button::after{display:none}
.accordion-button .idx{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:12.5px;
  color:var(--c-ink-soft);
  background:var(--c-surface-alt);
  border-radius:8px;
  padding:3px 8px;
  flex:none;
  font-weight:700;
}
.accordion-button .faq-icon{
  margin-left:auto;
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  font-size:11px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.accordion-button:not(.collapsed) .faq-icon{
  transform:rotate(45deg);
  background:var(--c-ink);
  color:#fff;
}
.accordion-body{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-mute);
  border-top:1px solid transparent;
}
.accordion-body p{margin:0 0 10px}
.accordion-body p:last-child{margin-bottom:0}
.accordion-body .note{
  margin-top:12px;
  background:var(--c-surface-alt);
  border-left:3px solid var(--c-ink-soft);
  border-radius:10px;
  padding:12px 14px;
  font-size:14px;
  color:var(--c-ink-soft);
}
.faq-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--c-ink-soft);
  background:var(--c-surface-alt);
  padding:3px 10px;
  border-radius:999px;
}
/* ---------- 安全自检 ---------- */
.safety-section{padding:0 0 72px}
.safety-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  align-items:stretch;
}
.safety-media{position:relative;min-height:100%}
.safety-media img{
  width:100%;height:100%;
  object-fit:cover;
  min-height:320px;
}
.safety-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,38,33,.12) 0%,rgba(11,38,33,.55) 100%);
}
.safety-media .media-badge{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  background:var(--grad-badge);
  color:var(--c-ink);
  border-radius:14px;
  padding:10px 16px;
  font-size:13px;
  font-weight:700;
  box-shadow:var(--sh-3);
}
.safety-body{padding:40px}
.safety-body h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--c-ink);
  margin:0 0 12px;
}
.safety-body .sub{
  font-size:15px;
  color:var(--c-text-mute);
  margin:0 0 24px;
}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:14px 16px;
  background:var(--c-surface-alt);
  border-radius:var(--r-sm);
  transition:background .18s ease,transform .18s ease;
}
.check-list li:hover{background:#e2ede7;transform:translateX(2px)}
.check-list .mark{
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--c-ink);
  color:var(--c-lime);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;
  margin-top:2px;
}
.check-list strong{display:block;font-size:15px;color:var(--c-ink);font-weight:600}
.check-list span{font-size:14px;color:var(--c-text-mute);line-height:1.7}
/* ---------- 支持信息 ---------- */
.support-section{padding:0 0 72px}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{
  font-size:32px;
  line-height:1.25;
  font-weight:700;
  color:var(--c-ink);
  margin:0 0 10px;
}
.section-head p{margin:0;color:var(--c-text-mute);font-size:15.5px}
.support-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.support-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.support-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:3px;
  background:var(--grad-action);
  opacity:0;
  transition:opacity .18s ease;
}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.support-card:hover::before{opacity:1}
.support-icon{
  width:44px;height:44px;
  border-radius:14px;
  background:var(--c-surface-alt);
  color:var(--c-ink-soft);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;
  margin-bottom:16px;
}
.support-card h3{font-size:18px;font-weight:600;color:var(--c-ink);margin:0 0 8px}
.support-card p{font-size:14.5px;color:var(--c-text-mute);margin:0 0 14px;line-height:1.75}
.support-card .meta{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:13px;
  color:var(--c-ink-soft);
  font-weight:600;
}
/* ---------- CTA ---------- */
.cta-section{padding:0 0 88px}
.cta-card{
  position:relative;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:56px;
  color:var(--c-text-invert);
  overflow:hidden;
  box-shadow:var(--sh-2);
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-80px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  background:rgba(201,242,105,.14);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr auto;
  gap:32px;
  align-items:center;
}
.cta-inner h2{
  font-size:34px;
  line-height:1.25;
  font-weight:700;
  margin:0 0 12px;
  color:#fff;
}
.cta-inner p{margin:0;font-size:15.5px;color:rgba(246,244,239,.85);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-badge{
  position:absolute;
  right:36px;top:36px;
  z-index:2;
  background:var(--grad-badge);
  color:var(--c-ink);
  border-radius:16px;
  padding:10px 18px;
  font-size:13px;
  font-weight:700;
  box-shadow:var(--sh-3);
}
/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink-deep);
  color:var(--c-text-invert);
  border-top:4px solid transparent;
  border-image:var(--grad-brand) 1;
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand .brand-text{color:#fff}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(246,244,239,.7);
  margin:0;
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin:0 0 16px;
  letter-spacing:.02em;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a,.footer-col span{
  font-size:14px;
  color:rgba(246,244,239,.7);
  line-height:1.6;
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid rgba(246,244,239,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  font-size:11.5px;
  color:rgba(246,244,239,.55);
}
.footer-bottom .contact-line{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  letter-spacing:.02em;
}
/* ---------- 移动导航 ---------- */
.offcanvas.mobile-nav{
  background:var(--c-surface);
  --bs-offcanvas-width:320px;
}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700;color:var(--c-ink)}
.mobile-nav .offcanvas-body{padding:20px}
.mobile-nav .nav-menu{
  flex-direction:column;
  align-items:stretch;
  gap:8px;
  margin:0;
}
.mobile-nav .nav-item{
  padding:13px 16px;
  border-radius:14px;
  font-size:15px;
}
.mobile-nav .nav-item::after{display:none}
.mobile-nav .btn-cta{width:100%;margin-top:20px}
/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px}
  .faq-layout{grid-template-columns:256px 1fr;gap:24px}
}
@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px}
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-cta{display:none}
  .header-inner{min-height:66px}
  .page-hero{padding:40px 0 36px}
  .page-hero h1{font-size:32px}
  .search-wrap{padding:22px}
  .faq-layout{grid-template-columns:1fr}
  .faq-aside{position:static}
  .group-nav{flex-direction:row;overflow-x:auto;padding-bottom:4px;gap:8px}
  .group-link{flex:0 0 auto;white-space:nowrap}
  .aside-note{display:none}
  .safety-card{grid-template-columns:1fr}
  .safety-media img{min-height:220px}
  .safety-body{padding:28px}
  .safety-body h2{font-size:25px}
  .support-grid{grid-template-columns:1fr 1fr;gap:18px}
  .cta-card{padding:40px}
  .cta-inner{grid-template-columns:1fr}
  .cta-inner h2{font-size:27px}
  .cta-badge{position:static;display:inline-block;margin-bottom:18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .topbar-inner{gap:12px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
  .topbar-timer{order:3;width:100%;margin-left:0;font-size:12px}
  .topbar-link{margin-left:auto}
  .section-head h2{font-size:25px}
  .support-grid{grid-template-columns:1fr}
  .faq-section{padding:40px 0 56px}
  .safety-section{padding-bottom:56px}
  .support-section{padding-bottom:56px}
  .cta-section{padding-bottom:64px}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
  .brand-text{font-size:16px}
  .page-hero h1{font-size:27px;line-height:1.25}
  .page-hero .lead{font-size:15.5px}
  .hero-stats{gap:10px}
  .stat-badge{flex:1 1 calc(50% - 10px);min-width:0;padding:12px 14px}
  .stat-badge .num{font-size:20px}
  .search-wrap{padding:18px;border-radius:22px}
  .search-box{padding:4px 4px 4px 16px;flex-wrap:wrap}
  .search-box input{height:40px;font-size:14.5px;flex:1 1 140px}
  .search-box .btn-cta{height:40px;padding:0 18px;font-size:14px;flex:1 1 100%}
  .accordion-button{padding:16px 18px;font-size:15.5px;gap:10px}
  .accordion-body{padding:0 18px 18px}
  .safety-body{padding:22px}
  .safety-body h2{font-size:22px}
  .btn-cta,.btn-ghost{height:44px;padding:0 22px;font-size:14.5px}
  .cta-card{padding:28px 22px}
  .cta-inner h2{font-size:23px}
  .cta-actions .btn-ghost{width:100%}
  .cta-actions .btn-cta{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}