/* roulang page: index */
:root{
  --ink:#0B0F14;
  --ink2:#141A22;
  --ink3:#1B232D;
  --line:#232B36;
  --line-soft:rgba(232,237,243,.12);
  --brand:#16E0A3;
  --brand-soft:rgba(22,224,163,.14);
  --violet:#7B5CFF;
  --violet-soft:rgba(123,92,255,.16);
  --accent:#FF7A2F;
  --accent-soft:rgba(255,122,47,.14);
  --t1:#E8EDF3;
  --t2:#9AA7B6;
  --paper:#F6F8FB;
  --card:#FFFFFF;
  --text:#101418;
  --text2:#5A6673;
  --ok:#17B26A;
  --warn:#F04438;
  --muted:#6B7684;
  --r-xs:8px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --pill:999px;
  --sh-dark:0 8px 24px rgba(0,0,0,.35);
  --sh-light:0 6px 20px rgba(16,24,32,.08);
  --sh-lift:0 14px 34px rgba(16,24,32,.14);
  --max:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"Barlow","Rajdhani","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.dark{background:var(--ink);color:var(--t1);}
.dark .h2,.dark h3{color:var(--t1);}
.light{background:var(--paper);}
.h2{font-size:34px;line-height:1.25;}
.lead{font-size:16px;color:var(--text2);max-width:720px;margin-top:14px;}
.dark .lead{color:var(--t2);}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);
}
.kicker::before{content:"";width:22px;height:2px;background:var(--brand);display:block;border-radius:2px;}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.section-head .more{font-size:15px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.section-head .more::after{content:"→";transition:transform .2s ease;}
.section-head .more:hover::after{transform:translateX(4px);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(0,0,0,.45);}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),#0FA97A);
  color:#06231A;font-weight:700;font-size:17px;
  box-shadow:0 6px 18px rgba(22,224,163,.28);
}
.brand-text{font-size:19px;font-weight:700;color:var(--t1);letter-spacing:.01em;}
.brand:hover .brand-text{color:var(--brand);}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  padding:6px;border-radius:var(--pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  margin:0 auto;
  overflow-x:auto;scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:8px 16px;border-radius:var(--pill);
  font-size:14.5px;font-weight:500;color:var(--t2);
  border:1px solid transparent;
  transition:all .2s ease;
}
.chip:hover{color:var(--t1);border-color:var(--line);background:rgba(255,255,255,.05);}
.chip.is-active{background:var(--brand);color:#06231A;font-weight:600;border-color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--t1);font-size:20px;line-height:1;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.drawer{
  display:none;border-top:1px solid var(--line);background:var(--ink2);
  padding:16px 24px 22px;
}
.drawer.is-open{display:block;}
.drawer a{
  display:block;padding:13px 14px;border-radius:var(--r-sm);
  color:var(--t1);font-size:15px;font-weight:500;
  border:1px solid transparent;
}
.drawer a:hover,.drawer a.is-active{background:var(--brand-soft);border-color:var(--line);color:var(--brand);}
.drawer .btn{width:100%;margin-top:14px;justify-content:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#06231A;box-shadow:0 8px 22px rgba(22,224,163,.24);}
.btn-primary:hover{background:#2CEBAF;color:#06231A;transform:translateY(-2px);box-shadow:0 14px 30px rgba(22,224,163,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(22,224,163,.24);}
.btn-ghost{background:transparent;color:var(--t1);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ Hero ============ */
.hero{
  position:relative;background:var(--ink);color:var(--t1);
  padding:88px 0 76px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(35,43,54,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(35,43,54,.55) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 18% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 18% 20%,#000 0%,transparent 72%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:var(--pill);
  background:var(--brand-soft);border:1px solid rgba(22,224,163,.32);
  color:var(--brand);font-size:13.5px;font-weight:600;
}
.hero h1{font-size:48px;line-height:1.2;margin:22px 0 0;letter-spacing:-.02em;}
.hero h1 .hl{color:var(--brand);}
.hero-sub{margin-top:20px;font-size:17.5px;color:var(--t2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.trust-row li{
  font-size:13.5px;color:var(--t2);
  padding:7px 14px;border-radius:var(--pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--ink2);box-shadow:var(--sh-dark);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(11,15,20,0) 45%,rgba(11,15,20,.72) 100%);
  pointer-events:none;
}
.float-card{
  position:absolute;right:-14px;bottom:26px;z-index:2;
  background:var(--ink2);border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px 20px;box-shadow:var(--sh-dark);
  display:flex;flex-direction:column;gap:2px;min-width:180px;
}
.float-num{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--brand);line-height:1.1;}
.float-label{font-size:13px;color:var(--t2);}

/* ============ 痛点带 ============ */
.pain{background:var(--ink2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:80px 0;}
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:40px;}
.pain-item{
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--r-md);padding:0 20px;
  transition:border-color .2s ease,background-color .2s ease;
}
.pain-item[open]{border-color:rgba(22,224,163,.42);background:rgba(22,224,163,.05);}
.pain-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 34px 20px 0;font-size:16px;font-weight:600;color:var(--t1);
}
.pain-item summary::-webkit-details-marker{display:none;}
.pain-item summary::before{content:"?";position:absolute;left:-6px;top:19px;color:var(--accent);font-weight:700;opacity:0;}
.pain-item summary::after{
  content:"";position:absolute;right:6px;top:26px;width:9px;height:9px;
  border-right:2px solid var(--t2);border-bottom:2px solid var(--t2);
  transform:rotate(45deg);transition:transform .2s ease;
}
.pain-item[open] summary::after{transform:rotate(-135deg);top:30px;border-color:var(--brand);}
.pain-item p{padding:0 0 22px;color:var(--t2);font-size:15px;}

/* ============ 方案长条卡 ============ */
.plan-list{display:flex;flex-direction:column;gap:24px;}
.plan-card{
  display:grid;grid-template-columns:1.15fr .85fr;
  background:var(--card);border:1px solid #E4E9F0;border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-light);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.plan-card:hover{border-color:var(--brand);box-shadow:var(--sh-lift);transform:translateY(-2px);}
.plan-card.reverse{grid-template-columns:.85fr 1.15fr;}
.plan-card.reverse .plan-body{order:2;}
.plan-card.reverse .plan-media{order:1;}
.plan-body{padding:40px 44px;display:flex;flex-direction:column;}
.plan-num{
  font-family:var(--font-num);font-size:14px;font-weight:700;letter-spacing:.16em;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:var(--pill);align-self:flex-start;
}
.plan-body h3{font-size:23px;margin-top:18px;}
.plan-body .plan-desc{margin-top:12px;color:var(--text2);font-size:15.5px;}
.checklist{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.checklist li{position:relative;padding-left:26px;font-size:15px;color:var(--text);}
.checklist li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;
  border-radius:4px;background:var(--brand-soft);border:1px solid rgba(22,224,163,.5);
}
.checklist li::after{
  content:"";position:absolute;left:4.5px;top:12px;width:5px;height:8px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(42deg);
}
.plan-link{margin-top:24px;font-size:15px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.plan-link::after{content:"→";transition:transform .2s ease;}
.plan-link:hover::after{transform:translateX(4px);}
.plan-media{position:relative;background:var(--ink2);min-height:280px;}
.plan-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}

/* ============ 数据区 ============ */
.stats{position:relative;background:var(--ink);color:var(--t1);padding:88px 0;overflow:hidden;}
.stats-bg{
  position:absolute;inset:0;background-image:url('/assets/images/coverpic/cover-6.webp');
  background-size:cover;background-position:center;opacity:.1;filter:grayscale(1);
}
.stat-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.stat{
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--r-md);padding:30px 26px;
  transition:border-color .25s ease,transform .25s ease;
}
.stat:hover{border-color:rgba(22,224,163,.5);transform:translateY(-3px);}
.stat-num{font-family:var(--font-num);font-size:40px;font-weight:700;color:var(--brand);line-height:1.05;}
.stat-num span{font-size:17px;margin-left:4px;color:var(--t2);font-weight:500;}
.stat:nth-child(2) .stat-num{color:var(--violet);}
.stat:nth-child(3) .stat-num{color:var(--accent);}
.stat-label{margin-top:10px;font-size:14px;color:var(--t2);}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid #E4E9F0;border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-light);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-lift);}
.news-cover{display:block;aspect-ratio:16/9;background:var(--ink2);overflow:hidden;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.news-chip{
  align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--violet);
  background:var(--violet-soft);padding:4px 11px;border-radius:var(--pill);
}
.news-title{
  margin-top:12px;font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--brand);}
.news-desc{
  margin-top:10px;font-size:14.5px;color:var(--text2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:18px;padding-top:14px;border-top:1px dashed #E4E9F0;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.news-meta .read{font-weight:600;color:var(--brand);}
.empty-state{
  border:1px dashed #C9D2DE;border-radius:var(--r-md);
  padding:56px 24px;text-align:center;background:rgba(255,255,255,.6);
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  border:1px solid #D8DFE8;display:grid;place-items:center;
  font-size:22px;color:var(--muted);
}
.empty-state p{color:var(--text2);font-size:15px;}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{background:var(--card);border:1px solid #E4E9F0;border-radius:var(--r-md);transition:border-color .2s ease,background-color .2s ease;}
.faq-item[open]{border-color:rgba(22,224,163,.55);background:#FBFEFC;}
.faq-q{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 52px 18px 22px;font-size:16.5px;font-weight:600;color:var(--text);
  line-height:1.6;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::after{
  content:"";position:absolute;right:24px;top:24px;width:9px;height:9px;
  border-right:2px solid var(--text2);border-bottom:2px solid var(--text2);
  transform:rotate(45deg);transition:transform .2s ease,border-color .2s ease;
}
.faq-item[open] .faq-q::after{transform:rotate(-135deg);top:27px;border-color:var(--brand);}
.faq-a{padding:0 22px 22px;color:var(--text2);font-size:15.5px;line-height:1.85;}

/* ============ CTA 与表单 ============ */
.cta-band{position:relative;background:var(--ink);color:var(--t1);padding:88px 0;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-copy h2{font-size:34px;line-height:1.28;}
.cta-copy p{margin-top:16px;color:var(--t2);font-size:16px;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:var(--t1);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:11px;width:9px;height:9px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 0 4px rgba(22,224,163,.14);
}
.form-card{
  background:rgba(20,26,34,.92);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-dark);
}
.form-card h3{font-size:20px;margin-bottom:8px;}
.form-card .form-hint{font-size:14px;color:var(--t2);margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13.5px;color:var(--t2);font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;min-height:46px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--t1);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#6E7B8A;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(22,224,163,.14);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#9AA7B6 50%),linear-gradient(135deg,#9AA7B6 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--t2);}
.agree input{width:16px;height:16px;min-height:auto;margin-top:4px;accent-color:var(--brand);}
.form-card .btn{width:100%;margin-top:20px;}
.form-status{margin-top:14px;font-size:14px;color:var(--t2);min-height:20px;}
.form-status.is-ok{color:var(--ok);}
.form-status.is-err{color:var(--warn);}

/* ============ 隐私说明条 ============ */
.privacy-bar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:14px 18px;margin-top:18px;
  font-size:13.5px;color:var(--t2);
}
.privacy-bar .lock{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-size:13px;
}
.privacy-bar a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--t2);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-text{color:var(--t1);}
.footer-about{font-size:14.5px;line-height:1.85;color:var(--t2);max-width:340px;}
.footer-col h4{font-size:15px;color:var(--t1);margin-bottom:18px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--t2);}
.footer-col a:hover{color:var(--brand);}
.qr-box{
  width:112px;height:112px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  display:grid;place-items:center;font-size:12.5px;color:var(--muted);text-align:center;padding:8px;
}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 弹层 ============ */
.modal{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(6,9,13,.72);
}
.modal.is-open{display:flex;}
.modal-panel{
  width:100%;max-width:540px;max-height:90vh;overflow:auto;
  background:var(--ink2);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;position:relative;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.modal-panel h3{font-size:21px;color:var(--t1);}
.modal-panel .form-hint{font-size:14px;color:var(--t2);margin:8px 0 22px;}
.modal-close{
  position:absolute;right:18px;top:18px;width:36px;height:36px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--t2);font-size:18px;line-height:1;
  display:grid;place-items:center;
}
.modal-close:hover{border-color:var(--brand);color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero h1{font-size:44px;}
  .nav-chips{margin:0;}
}
@media (max-width:1023px){
  .nav-chips{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:38px;}
  .hero-visual{max-width:620px;}
  .float-card{right:14px;}
  .plan-card,.plan-card.reverse{grid-template-columns:1fr;}
  .plan-card.reverse .plan-body{order:1;}
  .plan-card.reverse .plan-media{order:2;}
  .plan-media{min-height:220px;position:relative;padding-top:0;}
  .plan-media img{position:relative;height:220px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
  .section{padding:76px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:60px 0;}
  .section-tight{padding:52px 0;}
  .hero{padding:60px 0 56px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .h2{font-size:24px;}
  .cta-copy h2{font-size:24px;}
  .plan-body{padding:28px 22px;}
  .pain-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .stat{padding:22px 18px;}
  .stat-num{font-size:32px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card,.modal-panel{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .trust-row li{font-size:13px;}
}
@media (max-width:480px){
  .hero h1{font-size:26px;}
  .brand-text{font-size:17px;}
  .news-title{font-size:16px;}
  .faq-q{font-size:15.5px;}
}

/* roulang page: category1 */
:root{
  --ink:#0B0F14;
  --ink2:#141A22;
  --ink3:#1B2330;
  --line:#232B36;
  --brand:#16E0A3;
  --brand-dim:rgba(22,224,163,.14);
  --violet:#7B5CFF;
  --accent:#FF7A2F;
  --t1:#E8EDF3;
  --t2:#9AA7B6;
  --paper:#F6F8FB;
  --card:#FFFFFF;
  --text:#101418;
  --text2:#5A6673;
  --success:#17B26A;
  --warn:#F04438;
  --empty:#6B7684;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-chip:999px;
  --shadow-dark:0 8px 24px rgba(0,0,0,.35);
  --shadow-light:0 6px 20px rgba(16,24,32,.08);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-num:"Barlow","Rajdhani","Helvetica Neue",Arial,sans-serif;
  --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1280px){.container{max-width:1240px;}}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
  padding-top:10px;
  padding-bottom:10px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(140deg,var(--brand),#0FA97B);
  color:#04231A;
  font-weight:700;
  font-size:18px;
  box-shadow:0 0 0 1px rgba(22,224,163,.35),0 6px 16px rgba(22,224,163,.22);
}
.brand-text{
  color:var(--t1);
  font-size:18px;
  font-weight:700;
  letter-spacing:.5px;
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--brand);}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  padding:6px;
  border-radius:var(--radius-chip);
  background:var(--ink2);
  border:1px solid var(--line);
  margin-left:8px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  padding:8px 16px;
  border-radius:var(--radius-chip);
  font-size:14px;
  font-weight:500;
  color:var(--t2);
  border:1px solid transparent;
  transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease);
}
.chip:hover{color:var(--t1);border-color:var(--line);background:var(--ink3);}
.chip.is-active{
  background:var(--brand);
  color:#04231A;
  font-weight:600;
  border-color:var(--brand);
}
.chip.is-active:hover{background:#1BEFA f;color:#04231A;}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}
.header-link{
  font-size:14px;
  color:var(--t2);
  font-weight:500;
}
.header-link:hover{color:var(--brand);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease),filter var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{
  background:var(--brand);
  color:#04231A;
  box-shadow:0 6px 18px rgba(22,224,163,.25);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(22,224,163,.32);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(22,224,163,.22);}
.btn-ghost{
  background:transparent;
  color:var(--t1);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-outline-dark{
  background:transparent;
  color:var(--text);
  border-color:#D6DEE8;
}
.btn-outline-dark:hover{border-color:var(--brand);color:#0B8F69;transform:translateY(-2px);}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;filter:none;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--ink2);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--t1);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-nav{
  display:none;
  background:var(--ink2);
  border-bottom:1px solid var(--line);
  padding:14px 24px 22px;
}
.mobile-nav .chip{
  display:block;
  width:100%;
  padding:12px 16px;
  border-radius:10px;
  border:1px solid var(--line);
  margin-bottom:8px;
  text-align:left;
}
.mobile-nav .chip.is-active{border-color:var(--brand);}
.mobile-nav .btn{width:100%;margin-top:8px;}
.mobile-nav.is-open{display:block;}

/* ===== Page hero ===== */
.page-hero{
  position:relative;
  background:
    linear-gradient(180deg,rgba(11,15,20,.92) 0%,rgba(11,15,20,.97) 62%,var(--paper) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat,
    var(--ink);
  color:var(--t1);
  padding:64px 0 88px;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(35,43,54,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(35,43,54,.5) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.25;
  pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t2);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#3B4757;}
.crumb-current{color:var(--t1);}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-chip);
  border:1px solid rgba(22,224,163,.4);
  background:var(--brand-dim);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:48px;
  line-height:1.2;
  max-width:900px;
  color:#fff;
}
.page-hero h1 .hl{
  color:var(--brand);
}
.page-lead{
  margin-top:18px;
  max-width:720px;
  font-size:17px;
  line-height:1.85;
  color:var(--t2);
}
.anchor-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.anchor-tab{
  padding:9px 18px;
  border-radius:var(--radius-chip);
  border:1px solid var(--line);
  background:rgba(20,26,34,.72);
  color:var(--t2);
  font-size:14px;
  font-weight:500;
}
.anchor-tab:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}

/* ===== Section base ===== */
.section{padding:92px 0;}
.section--light{background:var(--paper);}
.section--white{background:#fff;}
.section--dark{background:var(--ink);color:var(--t1);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:2px;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:14px;
}
.section-title{
  font-size:34px;
  line-height:1.3;
}
.section-sub{
  margin-top:14px;
  color:var(--text2);
  font-size:16px;
}
.section--dark .section-sub{color:var(--t2);}

/* ===== Zigzag ===== */
.zigzag{display:flex;flex-direction:column;gap:28px;}
.zigzag-item{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:36px;
  align-items:center;
  background:var(--card);
  border:1px solid #E4EAF1;
  border-radius:var(--radius-card);
  padding:34px;
  box-shadow:var(--shadow-light);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.zigzag-item:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 14px 34px rgba(16,24,32,.12);}
.zigzag-item.reverse{grid-template-columns:5fr 7fr;}
.zigzag-item.reverse .zz-media{order:-1;}
.zz-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  height:32px;
  padding:0 12px;
  border-radius:8px;
  background:var(--ink);
  color:var(--brand);
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  letter-spacing:1px;
  margin-bottom:16px;
}
.zz-title{
  font-size:24px;
  margin-bottom:14px;
}
.zz-text{
  color:var(--text2);
  font-size:16px;
  line-height:1.85;
  margin-bottom:18px;
}
.zz-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.zz-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:#3C4756;
  line-height:1.75;
}
.zz-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:10px;height:10px;
  border-radius:3px;
  background:var(--violet);
  transform:rotate(45deg);
}
.zz-list li:nth-child(2)::before{background:var(--brand);}
.zz-list li:nth-child(3)::before{background:var(--accent);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:#0B8F69;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.link-arrow::after{content:"→";transition:transform var(--ease);}
.link-arrow:hover{color:var(--brand);border-color:var(--brand);}
.link-arrow:hover::after{transform:translateX(4px);}
.zz-media{
  position:relative;
  border-radius:14px;
  overflow:hidden;
  background:linear-gradient(140deg,#1B2330,#0B0F14);
  aspect-ratio:16/11;
  border:1px solid var(--line);
}
.zz-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.zigzag-item:hover .zz-media img{transform:scale(1.04);}
.zz-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(22,224,163,.16),rgba(11,15,20,.35));
  pointer-events:none;
}
.zz-badge{
  position:absolute;
  left:14px;
  bottom:14px;
  z-index:2;
  padding:7px 14px;
  border-radius:var(--radius-chip);
  background:rgba(11,15,20,.86);
  border:1px solid rgba(22,224,163,.45);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}

/* ===== Stats ===== */
.stats-band{
  position:relative;
  background:
    linear-gradient(180deg,rgba(11,15,20,.94),rgba(11,15,20,.98)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat,
    var(--ink);
  color:var(--t1);
  padding:82px 0;
  overflow:hidden;
}
.stats-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:url("/assets/images/coverpic/cover-6.webp") center/cover no-repeat;
  opacity:.06;
  pointer-events:none;
}
.stats-band .container{position:relative;z-index:2;}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  margin-top:8px;
}
.stat{
  padding:28px 24px;
  border-radius:var(--radius-card);
  background:rgba(20,26,34,.82);
  border:1px solid var(--line);
  transition:border-color var(--ease),transform var(--ease);
}
.stat:hover{border-color:var(--brand);transform:translateY(-3px);}
.stat-num{
  font-family:var(--font-num);
  font-size:42px;
  font-weight:700;
  line-height:1.1;
  color:var(--brand);
  letter-spacing:1px;
}
.stat-num .unit{font-size:18px;margin-left:4px;color:var(--t2);font-weight:600;}
.stat:nth-child(2) .stat-num{color:var(--violet);}
.stat:nth-child(3) .stat-num{color:var(--accent);}
.stat-label{
  margin-top:12px;
  font-size:14px;
  color:var(--t2);
}

/* ===== Checklist ===== */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.check-card{
  background:#fff;
  border:1px solid #E4EAF1;
  border-radius:14px;
  padding:26px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.check-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-light);}
.check-card h3{
  font-size:19px;
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:10px;
}
.check-card h3 .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--brand);
  flex:0 0 auto;
}
.check-card:nth-child(2) h3 .dot{background:var(--violet);}
.check-card:nth-child(3) h3 .dot{background:var(--accent);}
.check-card:nth-child(4) h3 .dot{background:var(--success);}
.check-card p{color:var(--text2);font-size:15px;line-height:1.8;}

/* ===== CTA ===== */
.cta-band{
  background:linear-gradient(120deg,#0B0F14 0%,#141A22 55%,#12211D 100%);
  border:1px solid var(--line);
  border-radius:18px;
  padding:52px;
  color:var(--t1);
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:36px;
  align-items:center;
}
.cta-band h2{font-size:30px;line-height:1.35;}
.cta-band p{margin-top:14px;color:var(--t2);font-size:16px;line-height:1.85;max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn{width:100%;}
.cta-note{font-size:13px;color:#7A8798;display:flex;align-items:center;gap:8px;}
.lock{
  width:14px;height:14px;
  display:inline-block;
  border-radius:3px;
  border:1.5px solid var(--brand);
  position:relative;
  flex:0 0 auto;
}
.lock::before{
  content:"";
  position:absolute;
  left:2.5px;top:-6px;
  width:7px;height:7px;
  border:1.5px solid var(--brand);
  border-bottom:none;
  border-radius:5px 5px 0 0;
}

/* ===== FAQ ===== */
.faq{max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid #E4EAF1;
  border-radius:14px;
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:var(--brand);}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--shadow-light);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  padding:0 22px;
  min-height:56px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  background:none;
}
.faq-q:hover{color:#0B8F69;}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a-inner{
  padding:0 22px 20px;
  color:var(--text2);
  font-size:15px;
  line-height:1.85;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--ink);
  color:var(--t2);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px;}
.footer-brand .brand-text{color:#fff;font-size:17px;}
.footer-about{
  font-size:14px;
  line-height:1.9;
  color:#8592A3;
  max-width:400px;
}
.footer-col h4{
  color:var(--t1);
  font-size:15px;
  margin-bottom:18px;
  font-weight:600;
}
.footer-col ul li{
  margin-bottom:11px;
  font-size:14px;
  color:#8592A3;
}
.footer-col ul li a:hover{color:var(--brand);}
.qr-box{
  width:118px;
  height:118px;
  border-radius:12px;
  border:1px dashed var(--line);
  background:var(--ink2);
  display:grid;
  place-items:center;
  text-align:center;
  font-size:12px;
  color:#6E7B8C;
  line-height:1.6;
  padding:10px;
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#6E7B8C;
}
.footer-bottom a{color:var(--brand);}
.footer-bottom a:hover{text-decoration:underline;}

/* ===== Responsive ===== */
@media (max-width:1279px){
  .page-hero h1{font-size:42px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:1023px){
  .nav-chips{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn{display:none;}
  .page-hero{padding:48px 0 68px;}
  .page-hero h1{font-size:36px;}
  .section{padding:72px 0;}
  .section-title{font-size:28px;}
  .zigzag-item,.zigzag-item.reverse{grid-template-columns:1fr;gap:24px;padding:26px;}
  .zigzag-item.reverse .zz-media{order:0;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:38px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-inner{min-height:64px;gap:12px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:32px;height:32px;font-size:16px;}
  .page-hero{padding:38px 0 56px;}
  .page-hero h1{font-size:29px;}
  .page-lead{font-size:15px;}
  .section{padding:56px 0;}
  .section-title{font-size:23px;}
  .section-head{margin-bottom:32px;}
  .zz-title{font-size:20px;}
  .zz-text,.check-card p{font-size:15px;}
  .check-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat{padding:20px 16px;}
  .stat-num{font-size:32px;}
  .cta-band{padding:28px 22px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .faq-q{font-size:15px;padding:0 16px;}
  .faq-a-inner{padding:0 16px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:26px;}
  .anchor-tab{font-size:13px;padding:8px 14px;}
  .zigzag-item{padding:20px;}
  .stat-num{font-size:28px;}
  .stat-num .unit{font-size:15px;}
}

/* roulang page: article */
:root{
  --ink:#0B0F14;
  --ink2:#141A22;
  --line:#232B36;
  --brand:#16E0A3;
  --violet:#7B5CFF;
  --accent:#FF7A2F;
  --t1:#E8EDF3;
  --t2:#9AA7B6;
  --paper:#F6F8FB;
  --card:#FFFFFF;
  --text:#101418;
  --muted:#5A6673;
  --soft-line:#E4E9F0;
  --ok:#17B26A;
  --warn:#F04438;
  --empty:#6B7684;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --sd-dark:0 8px 24px rgba(0,0,0,.35);
  --sd-light:0 6px 20px rgba(16,24,32,.08);
  --sd-lift:0 14px 34px rgba(16,24,32,.14);
  --container:1200px;
  --sec-y:88px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --num:"Barlow","Rajdhani","PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--paper);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#07130E;box-shadow:0 6px 18px rgba(22,224,163,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(22,224,163,.4)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(22,224,163,.24)}
.btn-ghost{border-color:rgba(232,237,243,.24);color:var(--t1);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-outline{border-color:#D8DEE8;background:#fff;color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:#0E8C67;transform:translateY(-2px);box-shadow:var(--sd-light)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(0,0,0,.4)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#0FAE7F);
  color:#06120D;font-weight:700;font-size:17px;
  box-shadow:0 6px 16px rgba(22,224,163,.28);
}
.brand-text{color:var(--t1);font-size:18px;font-weight:600;letter-spacing:.4px}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  margin:0 auto;
  padding:6px;border-radius:var(--r-chip);
  background:#10161E;border:1px solid var(--line);
}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-chip);font-size:14px;color:var(--t2);
  border:1px solid transparent;white-space:nowrap;
}
.chip:hover{color:var(--t1);border-color:var(--line);background:#151C25}
.chip.is-active{background:var(--brand);color:#07130E;font-weight:600;border-color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);flex-direction:column;justify-content:center;align-items:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--ink);padding:16px 0 22px}
.mobile-drawer.is-open{display:block}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.drawer-chips .chip{border-color:var(--line);background:#10161E}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;
  padding:30px 0 64px;
  background:
    linear-gradient(120deg,rgba(11,15,20,.95),rgba(11,15,20,.80)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-color:#0B0F14;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(35,43,54,.45) 1px,transparent 1px),linear-gradient(90deg,rgba(35,43,54,.45) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.35;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t2);margin-bottom:22px;
}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#3A4553}
.breadcrumb .current{color:var(--t1);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--r-chip);
  background:rgba(22,224,163,.12);border:1px solid rgba(22,224,163,.35);
  color:var(--brand);font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(22,224,163,.16)}
.article-hero h1{
  color:#FFFFFF;
  font-size:clamp(28px,3.4vw,44px);
  line-height:1.28;font-weight:700;letter-spacing:.2px;
  max-width:24em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:22px;font-size:14px;color:var(--t2);
}
.meta-chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-chip);background:rgba(123,92,255,.16);
  border:1px solid rgba(123,92,255,.4);color:#C3B4FF;font-weight:600;font-size:13px;
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-divider{width:1px;height:14px;background:var(--line)}

/* ---------- 主体布局 ---------- */
.article-main{padding:var(--sec-y) 0;background:var(--paper)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.article-primary{min-width:0}
.article-card{
  background:var(--card);border:1px solid var(--soft-line);
  border-radius:var(--r-card);box-shadow:var(--sd-light);
  padding:44px 48px;
}
.article-body{max-width:820px;margin:0 auto;font-size:17px;line-height:1.9;color:#1B222B}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:700;color:var(--text);
  margin:44px 0 18px;padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:30px 0 12px;color:var(--text)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body ul li{list-style:none;position:relative;margin-bottom:10px;padding-left:6px}
.article-body ul li::before{content:"";position:absolute;left:-16px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand);transform:rotate(45deg)}
.article-body ol{counter-reset:li}
.article-body ol li{list-style:none;position:relative;counter-increment:li;margin-bottom:10px;padding-left:4px}
.article-body ol li::before{
  content:counter(li);position:absolute;left:-24px;top:.25em;
  width:20px;height:20px;border-radius:6px;background:#EAF7F2;color:#0E8C67;
  font-family:var(--num);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  border-left:3px solid var(--violet);background:#F2F4FA;
  border-radius:0 12px 12px 0;color:#3A4453;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px 0 10px;background:#EAEDF2}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{border:1px solid var(--soft-line);padding:12px 16px;text-align:left}
.article-body th{background:#F1F4F9;font-weight:600}
.article-body a{color:#0E8C67;border-bottom:1px solid rgba(22,224,163,.5)}
.article-body a:hover{color:#0A6B4F;border-bottom-color:#0A6B4F}
.article-body hr{border:0;height:1px;background:var(--soft-line);margin:32px 0}
.article-body code{background:#F1F4F9;padding:2px 6px;border-radius:6px;font-size:15px}

/* 标签行 */
.article-tags{
  max-width:820px;margin:40px auto 0;padding-top:26px;
  border-top:1px dashed var(--soft-line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.article-tags .tag-label{font-size:14px;color:var(--muted);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-chip);background:#F1F6F4;border:1px solid #D6EFE6;
  color:#0E8C67;font-size:13px;font-weight:500;
}
.tag:hover{border-color:var(--brand);background:#E6F8F1}

/* 空态 */
.article-empty{
  max-width:640px;margin:20px auto;text-align:center;
  border:1px dashed #C9D2DE;border-radius:14px;padding:56px 24px;background:#FBFCFE;
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:#EEF1F6;color:var(--empty);font-size:24px;font-weight:700;font-family:var(--num);
}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:24px}

/* 上下篇导航 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.post-nav-item{
  display:block;background:#fff;border:1px solid var(--soft-line);
  border-radius:14px;padding:18px 20px;box-shadow:var(--sd-light);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.post-nav-item:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--sd-lift)}
.post-nav-label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.post-nav-item strong{font-size:15px;font-weight:600;line-height:1.5}
.post-nav-item.is-next{text-align:right}

/* 相关推荐 */
.related{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-title{font-size:24px;font-weight:700;line-height:1.3}
.section-title span{color:var(--brand)}
.section-more{font-size:14px;color:#0E8C67;font-weight:600}
.section-more:hover{color:#0A6B4F}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--soft-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sd-light);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--sd-lift)}
.post-card:hover .post-card-title{color:#0E8C67}
.post-thumb{position:relative;aspect-ratio:16/9;background:#E9EDF3;overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card-title{font-size:16px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card-text{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--empty);margin-top:auto;padding-top:6px}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--soft-line);border-radius:14px;padding:20px;box-shadow:var(--sd-light)}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand)}
.toc-list li{margin-bottom:8px}
.toc-list a{
  display:block;font-size:14px;color:var(--muted);line-height:1.6;
  padding-left:12px;border-left:2px solid transparent;
}
.toc-list a:hover{color:#0E8C67;border-left-color:var(--brand)}
.side-list li{border-bottom:1px dashed var(--soft-line)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:flex;align-items:center;gap:10px;padding:11px 0;font-size:14px;color:#38424F}
.side-list a:hover{color:#0E8C67}
.side-list .num{font-family:var(--num);font-size:13px;color:var(--brand);font-weight:700}
.side-note{font-size:13px;color:var(--muted);line-height:1.7;margin-top:12px}
.side-card.is-hidden{display:none}

/* ---------- FAQ ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:#FFFFFF;border-top:1px solid var(--soft-line);border-bottom:1px solid var(--soft-line)}
.section-head-center{text-align:center;max-width:720px;margin:0 auto 40px}
.section-head-center h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:700;margin-bottom:12px}
.section-head-center p{color:var(--muted);font-size:15px}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--soft-line);border-radius:14px;
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#C9D2DE}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--sd-light)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex-shrink:0;
  border-right:2px solid var(--empty);border-bottom:2px solid var(--empty);
  transform:rotate(45deg);transition:transform .2s ease;
  margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand);margin-top:2px}
.faq-answer{padding:0 20px 20px;color:var(--muted);font-size:15px;line-height:1.85;background:#FAFCFE}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  padding:var(--sec-y) 0;
  background:
    linear-gradient(110deg,rgba(11,15,20,.96),rgba(20,26,34,.88)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  background-color:#0B0F14;
  border-top:1px solid var(--line);
}
.cta-inner{display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:start}
.cta-copy h2{color:#fff;font-size:clamp(24px,2.8vw,34px);line-height:1.35;font-weight:700;margin-bottom:16px}
.cta-copy p{color:var(--t2);font-size:16px;max-width:44ch;margin-bottom:22px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px}
.cta-points span{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;
  border-radius:var(--r-chip);background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--t2);font-size:13px;
}
.form-panel{
  background:#141A22;border:1px solid var(--line);border-radius:18px;
  padding:26px;box-shadow:var(--sd-dark);
}
.form-panel h3{color:#fff;font-size:18px;font-weight:600;margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--t2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:10px;
  background:#0E141B;border:1px solid var(--line);color:var(--t1);
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:92px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#5C6878}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,224,163,.16);
}
.form-status{display:none;margin-top:12px;font-size:14px;color:var(--brand)}
.form-status.is-show{display:block}
.privacy-bar{
  display:flex;align-items:center;gap:8px;justify-content:center;
  margin-top:14px;font-size:13px;color:var(--empty);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:16px}
.footer-brand .brand-text{font-size:17px}
.footer-about{color:var(--t2);font-size:14px;line-height:1.85;max-width:38ch}
.footer-col h4{color:var(--t1);font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a,.footer-col li{color:var(--t2);font-size:14px;line-height:1.7}
.footer-col a:hover{color:var(--brand)}
.qr-box{
  width:120px;height:120px;border-radius:12px;border:1px dashed var(--line);
  display:flex;align-items:center;justify-content:center;text-align:center;
  color:var(--t2);font-size:12px;line-height:1.6;background:rgba(255,255,255,.02);
}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--empty);font-size:13px;
}
.footer-bottom a{color:var(--t2)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px}
  .cta-inner{grid-template-columns:1fr 380px;gap:36px}
}
@media (max-width:1023px){
  :root{--sec-y:64px}
  .nav-chips{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .article-layout{grid-template-columns:1fr;gap:28px}
  .article-side{position:static;top:auto}
  .article-card{padding:32px 28px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  .container{padding:0 18px}
  .header-inner{height:66px;gap:12px}
  .brand-text{font-size:16px}
  .brand-mark{width:34px;height:34px;font-size:15px}
  .article-hero{padding:22px 0 44px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:18px}
  .article-card{padding:24px 18px;border-radius:14px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.is-next{text-align:left}
  .faq-item summary{font-size:15px;padding:12px 16px}
  .form-panel{padding:20px;border-radius:14px}
  .btn{width:100%}
  .btn-inline{width:auto}
  .footer-col ul li{font-size:13px}
}
@media (max-width:520px){
  .article-meta{gap:8px;font-size:13px}
  .meta-divider{display:none}
  .section-title{font-size:20px}
  .footer-grid{grid-template-columns:1fr}
  .breadcrumb .current{max-width:100%;white-space:normal}
}

/* roulang page: category2 */
:root{
  --ink:#0B0F14;
  --ink2:#141A22;
  --line:#232B36;
  --line-light:#E4E9F0;
  --brand:#16E0A3;
  --brand-dark:#0FBF8A;
  --violet:#7B5CFF;
  --accent:#FF7A2F;
  --t1:#E8EDF3;
  --t2:#9AA7B6;
  --paper:#F6F8FB;
  --card:#FFFFFF;
  --text:#101418;
  --text-2:#5A6673;
  --success:#17B26A;
  --warn:#F04438;
  --empty:#6B7684;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --shadow-dark:0 8px 24px rgba(0,0,0,.35);
  --shadow-light:0 6px 20px rgba(16,24,32,.08);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04231A;box-shadow:0 6px 18px rgba(22,224,163,.22)}
.btn-primary:hover{background:#2AEBAF;transform:translateY(-2px);box-shadow:0 12px 26px rgba(22,224,163,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(22,224,163,.2)}
.btn-ghost{background:transparent;color:var(--t1);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-outline-light{background:transparent;color:var(--text);border-color:#CFD7E2}
.btn-outline-light:hover{border-color:var(--brand);color:#0B7A59}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),#0FA97C);
  color:#04231A;font-weight:700;font-size:18px;
}
.brand-text{color:var(--t1);font-size:18px;font-weight:700;letter-spacing:.01em}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  margin-left:8px;padding:6px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-chip);
}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-chip);
  font-size:14px;font-weight:500;color:var(--t2);
  border:1px solid transparent;
  white-space:nowrap;
}
.chip:hover{color:var(--t1);border-color:var(--line)}
.chip.is-active{background:var(--brand);color:#04231A;font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.header-link{font-size:14px;color:var(--t2)}
.header-link:hover{color:var(--brand)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--ink2);
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-chips{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.mobile-drawer .chip{width:100%;justify-content:flex-start;border-color:var(--line)}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  background-color:var(--ink);
  background-image:linear-gradient(100deg,rgba(11,15,20,.94) 0%,rgba(11,15,20,.82) 52%,rgba(11,15,20,.6) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  padding:56px 0 72px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t2);margin-bottom:26px;
}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#4A5563}
.breadcrumb .current{color:var(--t1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-chip);
  background:rgba(22,224,163,.12);
  border:1px solid rgba(22,224,163,.3);
  color:var(--brand);font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.page-hero h1{
  color:var(--t1);
  font-size:46px;
  max-width:880px;
  margin-bottom:18px;
}
.page-lead{
  color:var(--t2);
  font-size:17px;
  max-width:720px;
  margin-bottom:30px;
}
.anchor-tabs{display:flex;flex-wrap:wrap;gap:10px}
.anchor-tabs a{
  padding:9px 18px;border-radius:var(--r-chip);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--t2);font-size:14px;font-weight:500;
}
.anchor-tabs a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0}
.section-light{background:var(--paper)}
.section-white{background:#fff}
.section-dark{background:var(--ink);color:var(--t1)}
.section-dark .sec-title{color:var(--t1)}
.section-dark .sec-desc{color:var(--t2)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-tag{
  display:inline-block;padding:5px 13px;border-radius:var(--r-chip);
  background:rgba(123,92,255,.1);color:var(--violet);
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.section-dark .sec-tag{background:rgba(123,92,255,.18);color:#B4A3FF}
.sec-title{font-size:34px;margin-bottom:14px}
.sec-desc{color:var(--text-2);font-size:16px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:76px 1fr;
  gap:26px;
  padding-bottom:34px;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;left:37px;top:72px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--line-light),rgba(228,233,240,.35));
}
.tl-item:last-child::before{display:none}
.tl-marker{
  width:76px;height:56px;border-radius:14px;
  background:var(--ink);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;letter-spacing:.05em;
  border:1px solid var(--line);
}
.tl-card{
  display:grid;
  grid-template-columns:308px 1fr;
  gap:0;
  background:var(--card);
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.tl-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 12px 30px rgba(16,24,32,.12)}
.tl-media{
  margin:0;
  background:linear-gradient(140deg,#E7ECF3,#D8E0EA);
  aspect-ratio:16/11;
  overflow:hidden;
}
.tl-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.tl-card:hover .tl-media img{transform:scale(1.03)}
.tl-body{padding:26px 30px 28px}
.badge{
  display:inline-block;padding:4px 12px;border-radius:var(--r-chip);
  font-size:12px;font-weight:600;margin-bottom:12px;
}
.badge-brand{background:rgba(22,224,163,.14);color:#0B7A59}
.badge-violet{background:rgba(123,92,255,.12);color:#5B41D6}
.badge-accent{background:rgba(255,122,47,.14);color:#C2500F}
.tl-body h3{font-size:21px;margin-bottom:10px}
.tl-body p{color:var(--text-2);font-size:15px;margin-bottom:16px}
.check-list li{
  position:relative;
  padding-left:24px;
  font-size:14.5px;
  color:var(--text);
  line-height:1.75;
  margin-bottom:8px;
}
.check-list li::before{
  content:"";
  position:absolute;left:2px;top:9px;
  width:7px;height:7px;border-radius:2px;
  background:var(--brand);
}

/* ---------- 数据块 ---------- */
.stat-band{
  position:relative;
  background-color:var(--ink);
  background-image:linear-gradient(rgba(11,15,20,.9),rgba(11,15,20,.9)),url('/assets/images/coverpic/cover-12.png');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-item{
  padding:26px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(20,26,34,.72);
  transition:border-color .22s ease,transform .22s ease;
}
.stat-item:hover{border-color:var(--brand);transform:translateY(-2px)}
.stat-num{
  font-size:40px;font-weight:700;line-height:1.1;
  color:var(--brand);
  font-family:"Barlow","Rajdhani","PingFang SC",sans-serif;
}
.stat-num .unit{font-size:15px;font-weight:500;color:var(--t2);margin-left:6px}
.stat-label{margin-top:10px;font-size:14px;color:var(--t2)}

/* ---------- 提示条 ---------- */
.notice-band{
  display:flex;align-items:flex-start;gap:16px;
  padding:22px 26px;
  background:#fff;
  border:1px solid var(--line-light);
  border-left:4px solid var(--accent);
  border-radius:14px;
  box-shadow:var(--shadow-light);
}
.notice-band .notice-icon{
  flex-shrink:0;width:36px;height:36px;border-radius:10px;
  background:rgba(255,122,47,.12);color:#C2500F;
  display:flex;align-items:center;justify-content:center;font-weight:700;
}
.notice-band h3{font-size:17px;margin-bottom:6px}
.notice-band p{color:var(--text-2);font-size:14.5px}

/* ---------- 分类入口卡 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.card:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:0 14px 32px rgba(16,24,32,.12)}
.card-media{aspect-ratio:16/9;background:linear-gradient(140deg,#E7ECF3,#D8E0EA);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px}
.card-body p{color:var(--text-2);font-size:14.5px;flex:1}
.card-link{font-size:14px;font-weight:600;color:#0B7A59;display:inline-flex;align-items:center;gap:6px}
.card-link::after{content:"→";transition:transform .2s ease}
.card:hover .card-link::after{transform:translateX(3px)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow-light)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 22px;min-height:56px;
  font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .arrow{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-light);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);font-size:12px;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item[open] summary .arrow{transform:rotate(90deg);background:var(--brand);color:#04231A;border-color:var(--brand)}
.faq-item .faq-answer{padding:0 22px 20px;color:var(--text-2);font-size:15px}

/* ---------- CTA 与表单 ---------- */
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.cta-copy h2{color:var(--t1);font-size:34px;margin-bottom:16px}
.cta-copy p{color:var(--t2);font-size:16px;margin-bottom:26px}
.cta-points{display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;color:var(--t1);font-size:15px}
.cta-points li::before{
  content:"";
  flex-shrink:0;width:8px;height:8px;border-radius:2px;
  background:var(--brand);margin-top:10px;
}
.lead-form{
  background:var(--ink2);
  border:1px solid var(--line);
  border-radius:18px;
  padding:30px 28px;
  box-shadow:var(--shadow-dark);
}
.lead-form h3{color:var(--t1);font-size:20px;margin-bottom:6px}
.lead-form .form-hint{color:var(--t2);font-size:13.5px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;color:var(--t2);font-size:13.5px;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;
  background:#0E141B;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--t1);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#5C6875}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(22,224,163,.16);
}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;font-size:13.5px;color:var(--t2)}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand)}
.check-row a{color:var(--brand)}
.form-status{margin-top:14px;font-size:14px;min-height:20px}
.privacy-bar{
  display:flex;align-items:center;gap:10px;
  margin-top:18px;padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--t2);
}
.privacy-bar svg{flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);border-top:1px solid var(--line);padding:64px 0 28px;color:var(--t2)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px}
.footer-brand .brand-text{color:var(--t1);font-size:17px;font-weight:700}
.footer-about{font-size:14.5px;line-height:1.85;color:var(--t2)}
.footer-col h4{color:var(--t1);font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--t2)}
.footer-col a{color:var(--t2)}
.footer-col a:hover{color:var(--brand)}
.qr-box{
  width:120px;height:120px;border-radius:14px;
  border:1px dashed var(--line);
  background:rgba(255,255,255,.03);
  display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:13px;color:var(--t2);line-height:1.6;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:24px;font-size:13.5px;color:#6B7684;
}
.footer-bottom a{color:#8C99A8}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:40px}
  .tl-card{grid-template-columns:270px 1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .header-actions .btn{display:none}
  .menu-toggle{display:flex}
  .section{padding:68px 0}
  .page-hero{padding:44px 0 56px}
  .page-hero h1{font-size:34px}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .card-grid{grid-template-columns:1fr 1fr}
  .tl-card{grid-template-columns:1fr}
  .tl-media{aspect-ratio:16/9}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .page-hero h1{font-size:29px}
  .page-lead{font-size:15.5px}
  .sec-title{font-size:25px}
  .sec-head{margin-bottom:34px}
  .tl-item{grid-template-columns:56px 1fr;gap:16px}
  .tl-marker{width:56px;height:46px;font-size:17px;border-radius:12px}
  .tl-item::before{left:27px;top:58px}
  .tl-body{padding:20px 20px 22px}
  .tl-body h3{font-size:18px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-num{font-size:32px}
  .card-grid{grid-template-columns:1fr}
  .cta-copy h2{font-size:25px}
  .lead-form{padding:24px 20px}
  .btn{width:100%}
  .header-actions{margin-left:auto}
  .anchor-tabs a{font-size:13px;padding:8px 14px}
}
@media (max-width:479px){
  .page-hero h1{font-size:26px}
  .stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-text{font-size:16px}
  .faq-item summary{font-size:15px;padding:0 16px}
  .faq-item .faq-answer{padding:0 16px 18px}
}

/* roulang page: category3 */
:root{
  --ink:#0B0F14;
  --ink2:#141A22;
  --ink3:#1B232D;
  --line:#232B36;
  --brand:#16E0A3;
  --violet:#7B5CFF;
  --accent:#FF7A2F;
  --t1:#E8EDF3;
  --t2:#9AA7B6;
  --paper:#F6F8FB;
  --card:#FFFFFF;
  --inktext:#101418;
  --muted:#5A6673;
  --ok:#17B26A;
  --warn:#F04438;
  --empty:#6B7684;
  --line-light:#E3E9F1;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --sh-dark:0 8px 24px rgba(0,0,0,.35);
  --sh-light:0 6px 20px rgba(16,24,32,.08);
  --maxw:1200px;
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--t1);
  background:var(--ink);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--brand);
  color:#04231A;
  display:grid;
  place-items:center;
  font-size:18px;
  font-weight:700;
  letter-spacing:0;
}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--t1);
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--brand)}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  padding:6px;
  border:1px solid var(--line);
  border-radius:var(--r-chip);
  background:#0F151C;
  margin:0 auto;
}
.chip{
  display:inline-flex;
  align-items:center;
  padding:8px 16px;
  border-radius:var(--r-chip);
  font-size:14px;
  line-height:1.4;
  color:var(--t2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{color:var(--t1);border-color:var(--line);background:#151D26}
.chip.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#052A20;
  font-weight:600;
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#0F151C;
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  transition:border-color .2s ease;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--t1);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--ink2);
  padding:16px 24px 22px;
}
.mobile-drawer.is-open{display:block}
.drawer-chips{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.drawer-chips .chip{
  justify-content:flex-start;
  border-color:var(--line);
  padding:12px 16px;
  border-radius:12px;
  font-size:15px;
}
.drawer-chips .chip.is-active{background:var(--brand);border-color:var(--brand);color:#052A20}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.3;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:var(--brand);
  color:#052A20;
  box-shadow:0 6px 18px rgba(22,224,163,.24);
}
.btn-primary:hover{
  background:#2BE9B1;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(22,224,163,.32);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(22,224,163,.24)}
.btn-ghost{
  border-color:var(--line);
  color:var(--t1);
  background:transparent;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:44px 0 76px;
  background:var(--ink);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;
  filter:grayscale(.25);
}
.page-head::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(35,43,54,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(35,43,54,.55) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t2);
  margin-bottom:26px;
}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:#4A5563}
.breadcrumb .current{color:var(--t1)}
.page-title{
  font-size:clamp(30px,4vw,50px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--t1);
  max-width:900px;
}
.page-title em{
  font-style:normal;
  color:var(--brand);
}
.page-lead{
  margin-top:18px;
  max-width:720px;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
}
.anchor-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.anchor-tab{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:var(--r-chip);
  border:1px solid var(--line);
  background:#101720;
  font-size:14px;
  color:var(--t2);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.anchor-tab:hover{border-color:var(--brand);color:var(--brand);background:rgba(22,224,163,.08)}
.anchor-tab::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec-pad) 0}
.section-dark{background:var(--ink);color:var(--t1)}
.section-paper{background:var(--paper);color:var(--inktext)}
.section-white{background:#FFFFFF;color:var(--inktext)}
.section-head{max-width:800px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
}
.section-head p{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.section-dark .section-head p{color:var(--t2)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 13px;
  margin-bottom:18px;
  border-radius:var(--r-chip);
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  border:1px solid rgba(22,224,163,.35);
  background:rgba(22,224,163,.08);
}
.section-paper .eyebrow,
.section-white .eyebrow{
  color:#0C8E6A;
  border-color:rgba(12,142,106,.28);
  background:rgba(22,224,163,.14);
}
.section-dark h2{color:var(--t1)}
.section-paper h2,
.section-white h2{color:var(--inktext)}

/* ---------- 对照卡 ---------- */
.compare-list{display:flex;flex-direction:column;gap:26px}
.compare-card{
  background:var(--card);
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
  box-shadow:var(--sh-light);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.compare-card:hover{border-color:var(--brand);transform:translateY(-2px)}
.compare-head{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  padding:22px 26px;
  border-bottom:1px solid var(--line-light);
  background:#FBFCFE;
}
.compare-index{
  display:inline-grid;
  place-items:center;
  width:38px;
  height:38px;
  border-radius:11px;
  background:var(--ink);
  color:var(--brand);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
}
.compare-title{
  font-size:19px;
  font-weight:700;
  color:var(--inktext);
}
.compare-tag{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--r-chip);
  font-size:13px;
  font-weight:600;
  color:var(--violet);
  background:rgba(123,92,255,.1);
  border:1px solid rgba(123,92,255,.24);
}
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  position:relative;
}
.compare-side{padding:26px}
.compare-side + .compare-side{
  border-left:1px dashed var(--line-light);
}
.side-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 13px;
  border-radius:var(--r-chip);
  font-size:13px;
  font-weight:600;
  margin-bottom:16px;
}
.side-label.left{
  color:#0C8E6A;
  background:rgba(22,224,163,.14);
  border:1px solid rgba(12,142,106,.24);
}
.side-label.right{
  color:#5A3EE0;
  background:rgba(123,92,255,.12);
  border:1px solid rgba(123,92,255,.24);
}
.side-label::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:currentColor;
}
.side-list{display:flex;flex-direction:column;gap:11px}
.side-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.7;
  color:var(--muted);
}
.side-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--brand);
  transform:rotate(45deg);
}
.side-list li strong{color:var(--inktext);font-weight:600}
.compare-note{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:16px 26px 22px;
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
  border-top:1px dashed var(--line-light);
  background:#FBFCFE;
}
.compare-note::before{
  content:"建议";
  flex:0 0 auto;
  padding:2px 9px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  color:#8A4A16;
  background:rgba(255,122,47,.16);
  border:1px solid rgba(255,122,47,.3);
}

/* ---------- 数据带 ---------- */
.stat-section{
  position:relative;
  background:var(--ink);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.stat-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/coverpic/cover-8.png') center/cover no-repeat;
  opacity:.1;
  pointer-events:none;
}
.stat-section .container{position:relative;z-index:1}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat-item{
  background:rgba(20,26,34,.92);
  padding:30px 24px;
  transition:background-color .2s ease;
}
.stat-item:hover{background:rgba(27,35,45,.96)}
.stat-num{
  display:flex;
  align-items:baseline;
  gap:6px;
  font-size:clamp(28px,3.4vw,38px);
  font-weight:700;
  line-height:1.1;
  color:var(--brand);
  letter-spacing:.02em;
}
.stat-item:nth-child(2) .stat-num{color:var(--violet)}
.stat-item:nth-child(3) .stat-num{color:var(--accent)}
.stat-unit{font-size:15px;font-weight:600;color:var(--t2)}
.stat-label{
  margin-top:12px;
  font-size:14px;
  color:var(--t2);
}

/* ---------- 标签云与双栏说明 ---------- */
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:36px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:9px 16px;
  border-radius:var(--r-chip);
  font-size:14px;
  color:var(--inktext);
  background:#FFFFFF;
  border:1px solid var(--line-light);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:var(--brand);color:#0C8E6A;transform:translateY(-2px)}
.dual-cols{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.text-block{
  background:#FFFFFF;
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-light);
}
.text-block h3{
  font-size:18px;
  font-weight:700;
  color:var(--inktext);
  margin-bottom:14px;
  padding-left:12px;
  border-left:3px solid var(--brand);
  line-height:1.45;
}
.text-block p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.text-block p + p{margin-top:12px}
.text-block ul{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.text-block ul li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  line-height:1.7;
  color:var(--muted);
}
.text-block ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--violet);
}

/* ---------- 误区对照 ---------- */
.myth-list{display:flex;flex-direction:column;gap:14px}
.myth-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  background:var(--ink2);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease,transform .2s ease;
}
.myth-row:hover{border-color:var(--brand);transform:translateY(-2px)}
.myth-cell{padding:22px 24px}
.myth-cell + .myth-cell{border-left:1px dashed var(--line)}
.myth-label{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  padding:3px 10px;
  border-radius:6px;
  margin-bottom:12px;
}
.myth-cell.mis .myth-label{
  color:#FFB692;
  background:rgba(255,122,47,.14);
  border:1px solid rgba(255,122,47,.3);
}
.myth-cell.fact .myth-label{
  color:#7DF3CB;
  background:rgba(22,224,163,.12);
  border:1px solid rgba(22,224,163,.3);
}
.myth-cell p{
  font-size:15px;
  line-height:1.8;
}
.myth-cell.mis p{color:var(--t2)}
.myth-cell.fact p{color:var(--t1)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{
  background:#FFFFFF;
  border:1px solid var(--line-light);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#C9D6E4}
.faq-item[open]{
  border-color:var(--brand);
  box-shadow:var(--sh-light);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:16px;
  font-weight:600;
  color:var(--inktext);
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  flex:0 0 auto;
  width:10px;
  height:10px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-body{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}

/* ---------- CTA 与表单 ---------- */
.cta-section{
  background:var(--ink);
  border-top:1px solid var(--line);
}
.cta-band{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:36px;
  align-items:center;
  padding:38px;
  border:1px solid var(--line);
  border-radius:20px;
  background:var(--ink2);
  box-shadow:var(--sh-dark);
}
.cta-copy h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.3;
  font-weight:700;
  color:var(--t1);
}
.cta-copy p{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:var(--t2);
  max-width:640px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}
.cta-media{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/3;
  background:#101720;
}
.cta-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.cta-media .floating-card{
  position:absolute;
  left:16px;
  bottom:16px;
  right:16px;
  padding:14px 16px;
  border-radius:12px;
  background:rgba(11,15,20,.88);
  border:1px solid var(--line);
  font-size:13px;
  line-height:1.6;
  color:var(--t2);
}
.cta-media .floating-card strong{color:var(--brand);display:block;font-size:15px;margin-bottom:4px}

.lead-form{
  margin-top:34px;
  padding:30px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#101720;
}
.lead-form h3{
  font-size:19px;
  font-weight:700;
  color:var(--t1);
  margin-bottom:8px;
}
.lead-form .form-hint{
  font-size:14px;
  color:var(--t2);
  margin-bottom:22px;
}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{
  font-size:14px;
  font-weight:600;
  color:var(--t1);
}
.field input,
.field select,
.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#0E141B;
  color:var(--t1);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--t2) 50%),linear-gradient(135deg,var(--t2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input::placeholder,
.field textarea::placeholder{color:#6B7684}
.field input:hover,
.field select:hover,
.field textarea:hover{border-color:#33404F}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(22,224,163,.16);
}
.check-row{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--t2);
}
.check-row input{
  width:18px;
  height:18px;
  min-height:auto;
  margin-top:4px;
  accent-color:var(--brand);
}
.check-row a{color:var(--brand)}
.check-row a:hover{text-decoration:underline}
.form-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:24px;
}
.form-feedback{
  display:none;
  margin-top:18px;
  padding:14px 16px;
  border-radius:12px;
  font-size:14px;
  line-height:1.7;
  border:1px solid rgba(22,224,163,.35);
  background:rgba(22,224,163,.1);
  color:#8DF0CF;
}
.form-feedback.is-visible{display:block}
.form-feedback.is-error{
  border-color:rgba(240,68,56,.4);
  background:rgba(240,68,56,.12);
  color:#FFB3AD;
}
.privacy-bar{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-top:18px;
  font-size:13px;
  line-height:1.7;
  color:var(--empty);
}
.privacy-bar::before{
  content:"";
  flex:0 0 auto;
  margin-top:4px;
  width:14px;
  height:12px;
  border:1.5px solid var(--empty);
  border-radius:3px;
  background:linear-gradient(transparent 45%,var(--empty) 45%,var(--empty) 55%,transparent 55%);
}
.privacy-bar a{color:var(--t2);text-decoration:underline}
.privacy-bar a:hover{color:var(--brand)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  color:var(--t2);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--brand);
  color:#04231A;
  display:grid;
  place-items:center;
  font-weight:700;
  font-size:17px;
}
.footer-brand .brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--t1);
}
.footer-about{
  font-size:14px;
  line-height:1.85;
  color:var(--t2);
  max-width:380px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--t1);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:14px;line-height:1.7;color:var(--t2)}
.footer-col a{color:var(--t2)}
.footer-col a:hover{color:var(--brand)}
.qr-box{
  width:108px;
  height:108px;
  border-radius:12px;
  border:1px dashed var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  color:var(--t2);
  padding:8px;
  background:#0F151C;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:13px;
  color:var(--empty);
}
.footer-bottom a{color:var(--t2)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sec-pad:88px}
  .container{padding:0 22px}
  .brand-text{font-size:17px}
  .chip{padding:8px 13px;font-size:13px}
}
@media (max-width:1023px){
  :root{--sec-pad:76px}
  .nav-chips{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-sm{display:none}
  .cta-band{grid-template-columns:1fr;padding:30px}
  .cta-media{aspect-ratio:16/9}
  .dual-cols{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  :root{--sec-pad:58px}
  body{font-size:16px}
  .container{padding:0 18px}
  .nav-inner{min-height:64px}
  .brand-text{font-size:16px}
  .brand-mark{width:32px;height:32px;border-radius:9px;font-size:16px}
  .page-head{padding:30px 0 56px}
  .page-lead{font-size:15px}
  .anchor-tabs{gap:8px}
  .anchor-tab{font-size:13px;padding:8px 13px}
  .compare-grid{grid-template-columns:1fr}
  .compare-side{padding:22px}
  .compare-side + .compare-side{border-left:0;border-top:1px dashed var(--line-light)}
  .compare-head{padding:18px 20px}
  .compare-tag{margin-left:0}
  .compare-note{padding:14px 20px 18px;flex-direction:column;gap:8px}
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-item{padding:22px 18px}
  .stat-label{font-size:13px}
  .myth-row{grid-template-columns:1fr}
  .myth-cell + .myth-cell{border-left:0;border-top:1px dashed var(--line)}
  .form-grid{grid-template-columns:1fr}
  .lead-form{padding:22px}
  .cta-actions .btn{width:100%}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-about{max-width:none}
  .faq-item summary{font-size:15px;padding:16px 18px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:480px){
  .page-title{font-size:26px}
  .section-head h2{font-size:22px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:0}
  .stat-num{font-size:26px}
  .cta-band{padding:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category4 */
:root{
  --ink:#0B0F14;
  --ink2:#141A22;
  --line:#232B36;
  --brand:#16E0A3;
  --brand-dark:#0FB07F;
  --violet:#7B5CFF;
  --accent:#FF7A2F;
  --t1:#E8EDF3;
  --t2:#9AA7B6;
  --paper:#F6F8FB;
  --card:#FFFFFF;
  --text:#101418;
  --muted:#5A6673;
  --border:#E3E9F0;
  --success:#17B26A;
  --warn:#F04438;
  --empty:#6B7684;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --sh-dark:0 8px 24px rgba(0,0,0,.35);
  --sh-light:0 6px 20px rgba(16,24,32,.08);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.num{font-family:"Barlow","Rajdhani",var(--maxw),sans-serif;font-variant-numeric:tabular-nums}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),#0C8F68);
  color:#062018;font-weight:700;font-size:17px;
  box-shadow:0 6px 16px rgba(22,224,163,.28);
}
.brand-text{color:var(--t1);font-size:18px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;min-width:0;
  padding:6px;border-radius:var(--r-chip);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-chip);
  font-size:14px;font-weight:500;color:var(--t2);
  border:1px solid transparent;white-space:nowrap;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.chip:hover{color:var(--t1);border-color:var(--line);background:rgba(255,255,255,.05)}
.chip.is-active{
  background:var(--brand);color:#052A1E;font-weight:600;
  border-color:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-weight:600;font-size:15px;line-height:1;
  padding:14px 24px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{padding:11px 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#052A1E;box-shadow:0 8px 22px rgba(22,224,163,.22)}
.btn-primary:hover{background:#22EFA9;transform:translateY(-2px);box-shadow:0 14px 30px rgba(22,224,163,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(22,224,163,.2)}
.btn-ghost{background:transparent;color:var(--t1);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-light{background:#FFFFFF;color:var(--text);border-color:var(--border);box-shadow:var(--sh-light)}
.btn-light:hover{border-color:var(--brand);color:#087A58;transform:translateY(-2px)}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform .2s ease}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--ink2);
  padding:16px 24px 22px;
}
.drawer.is-open{display:block}
.drawer-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.drawer-list .chip{width:100%;text-align:center;padding:12px 16px}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;
  background:var(--ink);
  color:var(--t1);
  overflow:hidden;
  padding:56px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,15,20,.90),rgba(11,15,20,.96)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.9;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(35,43,54,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(35,43,54,.55) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 82%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t2);margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#3B4552}
.breadcrumb .current{color:var(--t1);font-weight:500}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-chip);
  border:1px solid rgba(22,224,163,.4);
  background:rgba(22,224,163,.10);
  color:var(--brand);font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.page-hero h1{
  font-size:clamp(28px,4.2vw,50px);
  line-height:1.22;
  max-width:880px;
  letter-spacing:.5px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{
  margin-top:18px;max-width:720px;
  color:var(--t2);font-size:16px;line-height:1.85;
}
.anchor-tabs{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;
}
.anchor-tabs a{
  padding:9px 18px;border-radius:var(--r-chip);
  font-size:14px;font-weight:500;color:var(--t1);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .2s ease;
}
.anchor-tabs a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-dark{background:var(--ink);color:var(--t1)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1.6px;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,3vw,34px);color:var(--text)}
.section-dark .section-head h2{color:var(--t1)}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section-dark .section-head p{color:var(--t2)}

/* ============ 步骤流程条 ============ */
.flow-track{
  display:grid;grid-template-columns:repeat(6,1fr);gap:18px;
  position:relative;margin-top:8px;
}
.flow-track::before{
  content:"";position:absolute;left:12px;right:12px;top:28px;height:2px;
  background:linear-gradient(90deg,var(--brand),rgba(22,224,163,.12));
  border-radius:2px;
}
.step{
  position:relative;z-index:1;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:22px 18px 20px;
  box-shadow:var(--sh-light);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 14px 32px rgba(16,24,32,.12)}
.step-num{
  width:44px;height:44px;border-radius:12px;
  background:var(--ink);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:.5px;
  margin-bottom:16px;
}
.step h3{font-size:17px;color:var(--text);margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 长文解释区 ============ */
.long-block{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:34px 0;
  border-top:1px solid var(--border);
}
.long-block:first-of-type{border-top:0;padding-top:0}
.long-block.reverse .long-copy{order:2}
.long-copy h3{
  font-size:clamp(20px,2.4vw,26px);
  padding-left:16px;position:relative;margin-bottom:16px;
}
.long-copy h3::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--violet));
}
.long-copy p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:14px}
.long-copy p strong{color:var(--text);font-weight:600}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.point-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--muted);
}
.point-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:9px;height:9px;border-radius:3px;
  background:var(--brand);transform:rotate(45deg);
}
.long-media{position:relative}
.long-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--border);
  background:#DDE5EE;
  box-shadow:var(--sh-light);
}
.long-media .media-badge{
  position:absolute;left:16px;bottom:16px;
  padding:8px 14px;border-radius:var(--r-chip);
  background:rgba(11,15,20,.82);color:var(--t1);
  font-size:13px;font-weight:500;
  border:1px solid rgba(255,255,255,.12);
}

/* ============ 数据区 ============ */
.stats-band{position:relative;overflow:hidden}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,15,20,.94),rgba(11,15,20,.98)),url("/assets/images/coverpic/cover-5.png");
  background-size:cover;background-position:center;
}
.stats-band .container{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{
  padding:28px 24px;border-radius:var(--r-card);
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.stat:hover{border-color:var(--brand);transform:translateY(-3px)}
.stat-value{font-size:clamp(30px,4vw,42px);font-weight:700;color:var(--brand);line-height:1}
.stat:nth-child(2) .stat-value{color:var(--violet)}
.stat:nth-child(3) .stat-value{color:var(--accent)}
.stat:nth-child(4) .stat-value{color:var(--brand)}
.stat-value small{font-size:15px;font-weight:500;color:var(--t2);margin-left:4px}
.stat-label{margin-top:12px;font-size:14px;color:var(--t2)}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:#C9D6E3}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--sh-light)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:0 0 auto;
  width:9px;height:9px;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  transform:rotate(45deg);
  transition:transform .2s ease,border-color .2s ease;
  margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand);margin-top:2px}
.faq-body{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.85;background:#FAFCFF}

/* ============ CTA 表单 ============ */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:48px;
  box-shadow:var(--sh-light);
}
.cta-copy h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:16px}
.cta-copy p{color:var(--muted);margin-bottom:24px}
.cta-points{display:flex;flex-direction:column;gap:12px}
.cta-points li{position:relative;padding-left:28px;font-size:15px;color:var(--muted)}
.cta-points li::before{
  content:"✓";position:absolute;left:0;top:0;
  width:18px;height:18px;border-radius:50%;
  background:rgba(22,224,163,.16);color:var(--brand-dark);
  font-size:11px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  margin-top:5px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--text)}
.field input,.field select,.field textarea{
  height:46px;border-radius:10px;
  border:1px solid var(--border);
  background:#FBFCFE;
  padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:96px;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#FFFFFF;
  box-shadow:0 0 0 3px rgba(22,224,163,.16);
}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);grid-column:1 / -1}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--brand)}
.form-status{
  display:none;grid-column:1 / -1;
  padding:12px 16px;border-radius:10px;font-size:14px;
  background:rgba(23,178,106,.10);color:#0D7A4B;border:1px solid rgba(23,178,106,.3);
}
.form-status.is-visible{display:block}
.privacy-note{
  display:flex;align-items:center;gap:10px;
  margin-top:18px;padding:12px 16px;
  border-radius:10px;border:1px dashed var(--border);
  font-size:13px;color:var(--muted);background:#FAFCFF;
}
.privacy-note .lock{
  width:20px;height:20px;flex:0 0 auto;border-radius:6px;
  background:rgba(123,92,255,.12);color:var(--violet);
  display:flex;align-items:center;justify-content:center;font-size:11px;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--t2);padding:72px 0 28px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:var(--t1);font-size:17px;font-weight:700}
.footer-about{font-size:14px;line-height:1.85;color:var(--t2);max-width:340px}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:16px;letter-spacing:.5px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--t2)}
.footer-col a{color:var(--t2)}
.footer-col a:hover{color:var(--brand)}
.qr-box{
  width:118px;height:118px;border-radius:12px;
  border:1px dashed var(--line);background:rgba(255,255,255,.03);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--t2);line-height:1.6;
}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8899;
}
.footer-bottom a{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .flow-track{grid-template-columns:repeat(3,1fr)}
  .flow-track::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .nav-chips{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .section{padding:72px 0}
  .long-block{grid-template-columns:1fr;gap:28px;padding:28px 0}
  .long-block.reverse .long-copy{order:0}
  .long-media{order:1}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:36px;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{min-height:64px;gap:12px}
  .brand-text{font-size:16px}
  .page-hero{padding:40px 0 56px}
  .hero-lead{font-size:15px}
  .section{padding:56px 0}
  .section.tight{padding:48px 0}
  .flow-track{grid-template-columns:repeat(2,1fr);gap:14px}
  .faq-item summary{font-size:15px;padding:14px 18px}
  .faq-body{padding:0 18px 18px}
  .form-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-sm{width:auto}
  .cta-panel{padding:26px 20px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-about{max-width:none}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .flow-track{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat{padding:20px 16px}
  .anchor-tabs a{padding:8px 14px;font-size:13px}
  .page-hero h1{font-size:26px}
}