/* roulang page: index */
:root{
  --bg:#071018;
  --panel:#0B1B26;
  --glass:rgba(12,30,40,.72);
  --card:rgba(255,255,255,.06);
  --primary:#17C5B8;
  --primary-soft:#8BE3DC;
  --accent:#2E6F8E;
  --cta:#FF8A4C;
  --text:#EAF4F6;
  --text2:#A9BDC6;
  --text3:#6F8792;
  --line:rgba(127,216,210,.18);
  --line-strong:rgba(127,216,210,.34);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 18px 46px rgba(0,0,0,.48);
  --glow:0 0 24px rgba(23,197,184,.35);
  --side-w:252px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 78% -12%, rgba(23,197,184,.10), transparent 66%),
    radial-gradient(720px 520px at 6% 102%, rgba(255,138,76,.07), transparent 62%);
}
img{max-width:100%;display:block;border-radius:var(--r-sm);}
a{color:inherit;text-decoration:none;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.25;}
h1{font-size:clamp(30px,5.2vw,54px);font-weight:800;line-height:1.15;}
h2{font-size:clamp(24px,3.2vw,36px);}
h3{font-size:clamp(18px,1.6vw,21px);font-weight:600;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary-soft);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(23,197,184,.35);color:#fff;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.page{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}

/* ============ Sidebar ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--side-w);
  z-index:130;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:24px 16px 20px;
  background:linear-gradient(180deg,rgba(11,27,38,.95),rgba(7,16,24,.97));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:11px;padding:6px 8px 18px;border-bottom:1px solid var(--line);}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  background:linear-gradient(140deg,var(--primary),var(--accent) 62%,var(--cta));
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;color:#04161c;letter-spacing:.02em;
  box-shadow:var(--glow);
}
.brand__text{display:flex;flex-direction:column;line-height:1.3;}
.brand__name{font-size:15.5px;font-weight:700;color:#fff;}
.brand__sub{font-size:11.5px;color:var(--text3);letter-spacing:.08em;}
.nav-label{font-size:11.5px;letter-spacing:.16em;color:var(--text3);padding:0 10px;margin-bottom:2px;}
.side-nav{display:flex;flex-direction:column;gap:6px;flex:1 0 auto;}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;
  border-radius:14px;
  color:var(--text2);
  font-size:15px;
  transition:color .18s ease,background .18s ease,transform .18s ease;
}
.side-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);transform:translateX(2px);}
.side-nav a.is-active{color:#fff;background:rgba(23,197,184,.13);border:1px solid var(--line-strong);}
.side-nav a.is-active::before{
  content:"";position:absolute;left:-4px;top:13px;bottom:13px;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 14px rgba(23,197,184,.9);
}
.side-nav .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 6px;transition:background .18s ease;}
.side-nav a.is-active .dot{background:var(--primary);box-shadow:0 0 10px rgba(23,197,184,.9);}
.side-cta{
  margin-top:auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.side-cta p{font-size:13px;color:var(--text2);margin:0 0 12px;line-height:1.7;}

/* ============ Topbar (mobile) ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:64px;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(7,16,24,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  z-index:120;
}
.topbar .brand{padding:0;border:0;gap:9px;}
.topbar .brand__mark{width:34px;height:34px;flex:0 0 34px;font-size:15px;border-radius:11px;}
.topbar .brand__name{font-size:14.5px;}
.topbar .brand__sub{font-size:10.5px;}
.burger{
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:background .18s ease;
}
.burger:hover{background:rgba(23,197,184,.14);}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease;}
.mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:125;
}
.mask.is-open{opacity:1;visibility:visible;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:14px;
  font-size:15.5px;font-weight:600;
  min-height:46px;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,border-color .18s ease;
  border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(120deg,var(--primary),#3fd6c2 45%,var(--cta));
  color:#04191d;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 34px rgba(23,197,184,.55);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.06);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(23,197,184,.14);border-color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 18px;font-size:14.5px;min-height:42px;border-radius:12px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.08em;
  color:var(--primary-soft);
  background:rgba(23,197,184,.12);
  border:1px solid var(--line);
}
.badge--orange{color:#FFC4A1;background:rgba(255,138,76,.14);border-color:rgba(255,138,76,.26);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(7,16,24,.94) 0%,rgba(7,16,24,.82) 42%,rgba(11,27,38,.66) 100%),
    radial-gradient(560px 340px at 84% 20%, rgba(23,197,184,.30), transparent 68%),
    radial-gradient(440px 320px at 64% 92%, rgba(255,138,76,.22), transparent 70%);
}
.hero__inner{position:relative;z-index:1;padding:92px 0 84px;max-width:820px;}
.hero h1{margin:20px 0 18px;text-shadow:0 6px 26px rgba(0,0,0,.4);}
.hero h1 em{font-style:normal;color:var(--primary-soft);}
.hero__lead{font-size:17px;color:var(--text2);line-height:1.9;max-width:680px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:38px;
  padding-top:24px;border-top:1px solid var(--line);
}
.trust-row li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text2);}
.trust-row strong{font-size:19px;color:#fff;font-weight:700;}
.trust-row .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(23,197,184,.8);}

/* ============ Sections ============ */
.section{padding:96px 0;}
.section--tight{padding:76px 0;}
.section--panel{background:linear-gradient(180deg,rgba(11,27,38,.7),rgba(7,16,24,.9));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head h2{margin:14px 0 14px;}
.section-head p{color:var(--text2);font-size:16px;margin:0;}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-lg);}

/* Points */
.points{display:grid;grid-template-columns:1.12fr .88fr;gap:var(--gap);}
.point-main{padding:38px 34px;display:flex;flex-direction:column;gap:16px;position:relative;overflow:hidden;}
.point-main::after{
  content:"";position:absolute;right:-60px;bottom:-70px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,197,184,.28),transparent 68%);
}
.point-num{font-size:13px;letter-spacing:.2em;color:var(--primary-soft);}
.point-main h3{font-size:clamp(20px,2.2vw,26px);}
.point-main p{color:var(--text2);margin:0;}
.point-main .point-figure{margin-top:auto;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);}
.point-col{display:grid;gap:var(--gap);}
.point-small{padding:28px 26px;display:flex;flex-direction:column;gap:12px;}
.point-small .point-num{color:var(--cta);}
.point-small p{color:var(--text2);font-size:15px;margin:0;}
.point-list{margin-top:6px;display:flex;flex-direction:column;gap:8px;}
.point-list li{display:flex;gap:9px;font-size:14.5px;color:var(--text2);}
.point-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);margin-top:10px;flex:0 0 6px;}

/* Demo tabs */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tab{
  padding:11px 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text2);font-size:14.5px;
  transition:all .18s ease;
}
.tab:hover{color:var(--text);border-color:var(--line-strong);}
.tab.is-active{background:linear-gradient(120deg,rgba(23,197,184,.22),rgba(255,138,76,.16));color:#fff;border-color:var(--primary);box-shadow:0 0 22px rgba(23,197,184,.22);}
.panel{display:none;}
.panel.is-active{display:grid;grid-template-columns:1.02fr 1fr;gap:36px;align-items:center;animation:fadeUp .3s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}
.panel__figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.panel__figure img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.panel__figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:var(--text2);background:linear-gradient(0deg,rgba(7,16,24,.88),transparent);}
.steps{display:flex;flex-direction:column;gap:0;margin-top:18px;}
.steps li{position:relative;display:flex;gap:16px;padding:0 0 22px 0;}
.steps li::before{content:"";position:absolute;left:13px;top:30px;bottom:0;width:1px;background:linear-gradient(180deg,var(--line-strong),transparent);}
.steps li:last-child{padding-bottom:0;}
.steps li:last-child::before{display:none;}
.steps .idx{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--primary-soft);
  background:rgba(23,197,184,.14);border:1px solid var(--line-strong);
}
.steps h3{font-size:16.5px;margin-bottom:4px;}
.steps p{font-size:14.5px;color:var(--text2);margin:0;}

/* Proof */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-bottom:46px;}
.stat{padding:26px 22px;text-align:left;}
.stat b{display:block;font-size:clamp(26px,3.4vw,36px);font-weight:800;color:#fff;line-height:1.1;}
.stat span{font-size:14px;color:var(--text2);}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-bottom:52px;}
.review{padding:26px 24px;display:flex;flex-direction:column;gap:14px;}
.review:nth-child(2){transform:translateY(22px);}
.review:nth-child(3){transform:translateY(-14px);}
.review:nth-child(2):hover,.review:nth-child(3):hover{transform:translateY(20px);}
.review:nth-child(3):hover{transform:translateY(-16px);}
.review p{color:var(--text);font-size:15.5px;margin:0;}
.review .who{font-size:13.5px;color:var(--text3);}
.stars{display:flex;gap:4px;}
.stars i{width:14px;height:14px;border-radius:3px;background:var(--cta);opacity:.85;display:block;}
.logo-wall{display:flex;flex-wrap:wrap;gap:14px;}
.logo-wall span{
  padding:12px 22px;border-radius:var(--r-pill);
  border:1px dashed var(--line-strong);
  font-size:14px;letter-spacing:.08em;color:var(--text3);
  transition:color .18s ease,border-color .18s ease;
}
.logo-wall span:hover{color:var(--primary-soft);border-color:var(--primary);}

/* News */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
.news-layout{display:grid;grid-template-columns:1.06fr 1fr;gap:var(--gap);}
.news-feature{display:flex;flex-direction:column;overflow:hidden;padding:0;}
.news-feature__cover{position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:var(--r-lg) var(--r-lg) 0 0;}
.news-feature__cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.news-feature:hover .news-feature__cover img{transform:scale(1.04);}
.news-feature__body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-feature__body h3{font-size:clamp(19px,2vw,23px);}
.news-feature__body p{color:var(--text2);font-size:15px;margin:0;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13.5px;color:var(--text3);}
.news-list{display:grid;gap:14px;align-content:start;}
.news-item{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:center;padding:16px;border-radius:var(--r-md);}
.news-item__thumb{width:78px;height:64px;border-radius:12px;overflow:hidden;flex:0 0 auto;border:1px solid var(--line);}
.news-item__thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.news-item h3{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{font-size:13.8px;color:var(--text2);margin:6px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .meta-row{font-size:12.8px;}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary-soft);transition:gap .18s ease,color .18s ease;}
.card:hover .arrow-link{gap:11px;color:var(--primary);}
.empty-state{
  grid-column:1/-1;
  padding:56px 32px;text-align:center;
  background:var(--card);border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.empty-state .empty-mark{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:800;color:var(--primary-soft);
  background:rgba(23,197,184,.12);border:1px solid var(--line-strong);
}
.empty-state p{color:var(--text3);margin:0 0 18px;}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .18s ease,background .18s ease;
}
.faq[open]{border-color:var(--line-strong);background:rgba(23,197,184,.07);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  font-size:16.5px;font-weight:600;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,197,184,.14);color:var(--primary-soft);font-weight:700;font-size:16px;
  transition:transform .18s ease,background .18s ease;
}
.faq[open] summary::after{content:"−";background:rgba(255,138,76,.18);color:#FFC4A1;}
.faq .faq-body{padding:0 24px 22px;color:var(--text2);font-size:15.5px;line-height:1.85;}

/* Consult */
.consult{display:grid;grid-template-columns:1fr 1.05fr;gap:var(--gap);align-items:stretch;}
.consult__intro{padding:38px 34px;display:flex;flex-direction:column;gap:16px;}
.consult__intro h2{font-size:clamp(22px,2.6vw,30px);}
.consult__intro p{color:var(--text2);margin:0;font-size:15.5px;}
.consult__points{display:flex;flex-direction:column;gap:10px;margin-top:6px;}
.consult__points li{display:flex;gap:10px;font-size:14.5px;color:var(--text2);}
.consult__points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cta);margin-top:10px;flex:0 0 6px;}
.form-card{padding:32px 30px;}
.field{position:relative;margin-bottom:20px;}
.field input,.field select,.field textarea{
  width:100%;
  padding:18px 16px 8px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:14px;
  color:var(--text);
  font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  appearance:none;
}
.field textarea{min-height:110px;resize:vertical;padding-top:24px;}
.field label{
  position:absolute;left:16px;top:15px;
  font-size:14px;color:var(--text3);pointer-events:none;
  transition:transform .16s ease,font-size .16s ease,color .16s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(23,197,184,.16);
  background:rgba(23,197,184,.06);
}
.field input:focus+label,.field textarea:focus+label,
.field input:not(:placeholder-shown)+label,.field textarea:not(:placeholder-shown)+label,
.field select:focus+label,.field select:valid+label{
  transform:translateY(-9px);font-size:11.5px;color:var(--primary-soft);letter-spacing:.06em;
}
.field.is-error input,.field.is-error textarea,.field.is-error select{border-color:#FF6B6B;background:rgba(255,107,107,.07);}
.field .err{display:none;font-size:12.5px;color:#FF9B9B;margin-top:6px;}
.field.is-error .err{display:block;}
.form-ok{
  display:none;margin-top:16px;padding:14px 16px;border-radius:14px;
  background:rgba(23,197,184,.14);border:1px solid var(--line-strong);
  color:var(--primary-soft);font-size:14.5px;
}
.form-ok.is-show{display:block;}
.form-note{font-size:12.8px;color:var(--text3);margin:14px 0 0;}

/* Sticky CTA */
.sticky-cta{
  position:fixed;left:var(--side-w);right:0;bottom:0;z-index:110;
  background:rgba(7,16,24,.94);
  border-top:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:14px 24px calc(14px + env(safe-area-inset-bottom));
}
.sticky-cta__inner{
  max-width:1240px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.sticky-cta p{margin:0;font-size:14.5px;color:var(--text2);}

/* Footer */
.site-footer{
  margin-top:auto;
  background:linear-gradient(180deg,rgba(11,27,38,.86),rgba(7,16,24,.98));
  border-top:1px solid var(--line);
  padding:70px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand .brand{padding:0 0 16px;border:0;}
.footer-brand p{color:var(--text2);font-size:14.5px;max-width:340px;}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--text3);margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col span{font-size:14.5px;color:var(--text2);transition:color .18s ease;}
.footer-col a:hover{color:var(--primary-soft);}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13.2px;color:var(--text3);
}

/* ============ Responsive ============ */
@media (max-width:1439px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .points{grid-template-columns:1fr;}
  .news-layout{grid-template-columns:1fr;}
  .reviews{grid-template-columns:1fr 1fr;}
  .review:nth-child(2){transform:none;}
  .review:nth-child(3){transform:none;grid-column:1/-1;}
  .consult{grid-template-columns:1fr;}
}
@media (max-width:1023px){
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    transition:transform .26s ease;
    box-shadow:var(--shadow-lg);
  }
  .sidebar.is-open{transform:translateX(0);}
  .topbar{display:flex;}
  .page{margin-left:0;padding-top:64px;}
  .sticky-cta{left:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));}
  .sticky-cta__inner{gap:12px;}
  .sticky-cta p{display:none;}
  .sticky-cta .btn{width:60%;margin-left:auto;}
  .section{padding:72px 0;}
  .section--tight{padding:60px 0;}
  .hero__inner{padding:64px 0 60px;}
  .panel.is-active{grid-template-columns:1fr;gap:26px;}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-footer{padding-bottom:96px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .section--tight{padding:44px 0;}
  .hero__inner{padding:48px 0 46px;}
  .hero__lead{font-size:15.8px;}
  .hero__actions{gap:12px;}
  .hero__actions .btn{flex:1 1 100%;}
  .trust-row{gap:10px 20px;}
  .trust-row strong{font-size:17px;}
  .point-main{padding:28px 22px;}
  .point-small{padding:22px 20px;}
  .reviews{grid-template-columns:1fr;}
  .review{padding:22px 20px;}
  .news-item{grid-template-columns:1fr;gap:12px;}
  .news-item__thumb{width:100%;height:150px;}
  .faq summary{padding:17px 18px;font-size:15.5px;}
  .faq .faq-body{padding:0 18px 18px;font-size:15px;}
  .form-card{padding:24px 20px;}
  .consult__intro{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:479px){
  .stat-bar{grid-template-columns:1fr;}
  .brand__sub{display:none;}
  .btn{width:100%;}
  .news-head{align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --bg:#071018;
  --panel:#0B1B26;
  --glass:rgba(12,30,40,.72);
  --glass-soft:rgba(255,255,255,.06);
  --line:rgba(127,216,210,.18);
  --line-strong:rgba(127,216,210,.34);
  --cyan:#17C5B8;
  --cyan-soft:#8BE3DC;
  --blue:#2E6F8E;
  --orange:#FF8A4C;
  --text:#EAF4F6;
  --muted:#A9BDC6;
  --dim:#6F8792;
  --radius-lg:22px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);
  --sidebar-w:252px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(680px 420px at 82% -8%, rgba(23,197,184,.16), transparent 70%),
    radial-gradient(560px 380px at 8% 88%, rgba(255,138,76,.10), transparent 72%),
    linear-gradient(180deg,#071018 0%,#08141d 60%,#071018 100%);
  z-index:-2;
  pointer-events:none;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul{list-style:none}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{letter-spacing:.01em;line-height:1.2;font-weight:700}
h1{font-size:clamp(30px,5.2vw,54px);font-weight:800;line-height:1.15}
h2{font-size:clamp(24px,3.2vw,36px)}
h3{font-size:clamp(17px,1.4vw,21px);font-weight:600}
p{color:var(--muted)}
::selection{background:rgba(23,197,184,.32);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.narrow{max-width:840px;margin:0 auto}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:linear-gradient(180deg,rgba(11,27,38,.97),rgba(7,16,24,.95));
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;gap:24px;
  z-index:70;
  transform:translateX(-100%);
  transition:transform .28s ease;
  overflow-y:auto;
}
.sidebar.is-open{transform:translateX(0)}
.sidebar__cta{
  margin-top:auto;
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(23,197,184,.16),rgba(255,138,76,.10));
  border-radius:var(--radius-md);
  padding:16px;
}
.sidebar__cta strong{display:block;font-size:15px;margin-bottom:6px;color:var(--text)}
.sidebar__cta p{font-size:13px;line-height:1.7;color:var(--dim);margin-bottom:12px}
.sidebar__cta .btn{width:100%;justify-content:center;padding:10px 14px;font-size:14px}

.brand{display:flex;align-items:center;gap:12px}
.brand__mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--cyan),var(--blue) 60%,rgba(255,138,76,.85));
  color:#04222a;font-weight:800;font-size:18px;
  box-shadow:0 0 22px rgba(23,197,184,.35);
}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__name{font-size:16px;font-weight:800;color:var(--text)}
.brand__sub{font-size:12px;color:var(--dim);letter-spacing:.04em}

.nav-list{display:flex;flex-direction:column;gap:6px}
.nav-list__label{
  font-size:12px;color:var(--dim);letter-spacing:.14em;
  padding:0 12px 8px;text-transform:uppercase;
}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;border-radius:var(--radius-sm);
  font-size:15px;color:var(--muted);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  min-height:48px;
}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.05);transform:translateX(2px)}
.nav-item.is-active{
  color:var(--text);
  background:rgba(255,255,255,.07);
  border-color:var(--line);
  box-shadow:inset 3px 0 0 var(--cyan),0 0 20px rgba(23,197,184,.18);
}
.nav-item .dot{
  width:6px;height:6px;border-radius:50%;background:var(--dim);flex:0 0 6px;transition:background .18s ease;
}
.nav-item.is-active .dot,.nav-item:hover .dot{background:var(--cyan)}

/* ---------- 顶部栏 / 移动端 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:64px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(7,16,24,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  z-index:80;
}
.topbar .brand__mark{width:36px;height:36px;flex:0 0 36px;font-size:16px;border-radius:11px}
.topbar .brand__name{font-size:15px}
.topbar .brand__sub{font-size:11px}
.burger{
  width:44px;height:44px;border-radius:12px;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
}
.burger span{width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.backdrop{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:65;
}
.backdrop.is-open{opacity:1;visibility:visible}

.shell{padding-top:64px}
@media (min-width:1024px){
  .topbar{display:none}
  .backdrop{display:none}
  .sidebar{transform:none}
  .shell{padding-top:0;padding-left:calc(var(--sidebar-w) + 24px)}
}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;min-height:44px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
  cursor:pointer;
}
.btn--primary{
  background:linear-gradient(120deg,var(--cyan),#1a9fb0 55%,rgba(255,138,76,.92));
  color:#03222a;
  box-shadow:0 0 24px rgba(23,197,184,.35);
}
.btn--primary:hover{filter:brightness(1.08);box-shadow:0 0 34px rgba(23,197,184,.5);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn--ghost:hover{border-color:var(--line-strong);background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:3px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;
  color:var(--cyan-soft);
  background:rgba(23,197,184,.12);
  border:1px solid rgba(23,197,184,.28);
}
.badge--orange{color:#FFC9A8;background:rgba(255,138,76,.12);border-color:rgba(255,138,76,.3)}

.section{padding:96px 0}
.section__head{max-width:760px;margin-bottom:44px}
.section__head h2{margin-bottom:14px}
.section__head p{font-size:16px}
.eyebrow{font-size:13px;letter-spacing:.16em;color:var(--cyan);margin-bottom:12px;display:block}

.card{
  background:var(--glass-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);
  padding:22px 0 0;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan-soft)}
.crumb span.sep{color:rgba(111,135,146,.6)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  margin-top:22px;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero__bg::after{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(520px 320px at 88% 12%, rgba(23,197,184,.24), transparent 70%),
    radial-gradient(420px 300px at 6% 92%, rgba(255,138,76,.16), transparent 72%),
    linear-gradient(120deg,rgba(7,16,24,.9) 12%,rgba(11,27,38,.78) 58%,rgba(7,16,24,.86) 100%);
}
.hero__inner{position:relative;padding:64px 40px 56px;max-width:820px}
.hero h1{margin:16px 0 18px}
.hero__lead{font-size:17px;line-height:1.9;color:#C6D8DE;max-width:660px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px 32px;
  margin-top:36px;padding-top:22px;
  border-top:1px solid rgba(127,216,210,.16);
  font-size:14px;color:var(--muted);
}
.trust-row b{color:var(--text);font-size:17px;font-weight:700;margin-right:6px}

/* ---------- 资源矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.entry{
  display:flex;flex-direction:column;gap:14px;
  padding:26px 24px;
  position:relative;
  overflow:hidden;
}
.entry__icon{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  font-size:19px;font-weight:800;
  color:#04222A;
  background:linear-gradient(140deg,var(--cyan),var(--blue));
  box-shadow:0 0 18px rgba(23,197,184,.28);
}
.entry h3{font-size:18px}
.entry p{font-size:14px;line-height:1.8}
.entry__more{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--cyan-soft);font-weight:600;
}
.entry__more i{font-style:normal;transition:transform .18s ease}
.entry:hover .entry__more i{transform:translateX(4px)}

/* ---------- 对比表 ---------- */
.table-wrap{
  overflow-x:auto;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass-soft);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
table{width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px}
thead th{
  text-align:left;padding:18px 20px;
  font-size:13px;letter-spacing:.08em;color:var(--cyan-soft);
  background:rgba(23,197,184,.08);
  border-bottom:1px solid var(--line);
  white-space:nowrap;font-weight:600;
}
tbody td{
  padding:18px 20px;color:var(--muted);
  border-bottom:1px solid rgba(127,216,210,.10);
  vertical-align:top;line-height:1.75;
}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:rgba(255,255,255,.035);color:#D6E6EA}
tbody td strong{color:var(--text);font-weight:600}

/* ---------- 图文分割 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split__media{
  border-radius:var(--radius-lg);
  overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;background:var(--panel);
}
.split__media img{width:100%;height:340px;object-fit:cover;transition:transform .4s ease}
.split__media:hover img{transform:scale(1.03)}
.split__media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;font-size:12.5px;color:#C6D8DE;
  background:linear-gradient(180deg,transparent,rgba(7,16,24,.88));
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(127,216,210,.12);
  transition:border-color .18s ease,background .18s ease,transform .18s ease;
}
.check-list li:hover{border-color:var(--line-strong);background:rgba(255,255,255,.07);transform:translateY(-2px)}
.check-list .num{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  color:#04222A;background:linear-gradient(140deg,var(--cyan),var(--blue));
}
.check-list strong{display:block;color:var(--text);font-size:15px;margin-bottom:4px}
.check-list p{font-size:13.5px;line-height:1.75}

/* ---------- 步骤轴 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.step{
  padding:26px 22px;position:relative;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  transition:transform .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.step__no{
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--orange);margin-bottom:12px;display:block;
}
.step h3{margin-bottom:10px;font-size:17px}
.step p{font-size:14px;line-height:1.8}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:14px}
.faq details{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--glass-soft);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq details[open]{border-color:var(--line-strong);background:rgba(23,197,184,.07)}
.faq summary{
  list-style:none;cursor:pointer;
  padding:20px 52px 20px 22px;
  position:relative;font-size:16px;font-weight:600;color:var(--text);
  min-height:44px;display:flex;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--cyan);transition:transform .18s ease;
}
.faq details[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg)}
.faq summary:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:-4px}
.faq .faq__body{padding:0 22px 22px;font-size:14.5px;line-height:1.9;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  padding:56px 44px;
  background:
    radial-gradient(520px 300px at 86% 18%, rgba(23,197,184,.22), transparent 70%),
    linear-gradient(120deg,rgba(11,27,38,.94),rgba(7,16,24,.9));
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.4fr .6fr;gap:36px;align-items:center;
}
.cta-block h2{margin-bottom:14px}
.cta-block p{max-width:620px;font-size:15.5px}
.cta-block .cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-note{font-size:13px;color:var(--dim);margin-top:18px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(9,21,30,.85),rgba(7,16,24,.98));
  padding:64px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{font-size:13.5px;line-height:1.85;margin-top:16px;max-width:340px}
.footer-col h4{
  font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em;font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--dim);transition:color .18s ease}
.footer-col a:hover{color:var(--cyan-soft)}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(127,216,210,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:var(--dim);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .matrix{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero__inner{padding:48px 28px 44px}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-block{grid-template-columns:1fr;padding:44px 28px}
  .cta-block .cta-actions{flex-direction:row;flex-wrap:wrap}
  .steps{grid-template-columns:1fr;gap:14px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .hero{border-radius:var(--radius-md)}
  .hero__inner{padding:38px 20px 36px}
  .hero__lead{font-size:15.5px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .trust-row{gap:8px 20px;font-size:13px}
  .matrix{grid-template-columns:1fr;gap:14px}
  .split__media img{height:230px}
  .cta-block{padding:34px 20px}
  .cta-block .cta-actions{flex-direction:column}
  .site-footer{margin-top:60px;padding:48px 0 28px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:479px){
  h1{font-size:28px}
  h2{font-size:22px}
  .section__head{margin-bottom:30px}
  .entry{padding:22px 18px}
  .check-list li{padding:14px}
}

/* roulang page: article */
:root{
  --bg:#071018;
  --panel:#0B1B26;
  --glass:rgba(12,30,40,.72);
  --glass-soft:rgba(255,255,255,.06);
  --line:rgba(127,216,210,.18);
  --line-strong:rgba(127,216,210,.38);
  --cyan:#17C5B8;
  --cyan-soft:#8BE3DC;
  --blue:#2E6F8E;
  --orange:#FF8A4C;
  --text:#EAF4F6;
  --muted:#A9BDC6;
  --dim:#6F8792;
  --danger:#FF6B6B;
  --ok:#3FD8A4;
  --radius-lg:22px;
  --radius:18px;
  --radius-sm:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --side:264px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:76px;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 600px at 80% -12%, rgba(23,197,184,.15), transparent 62%),
    radial-gradient(760px 520px at 4% 24%, rgba(46,111,142,.22), transparent 66%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.01em}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
::selection{background:rgba(23,197,184,.35)}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:12px;min-height:48px}
.brand__mark{
  flex:none;width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;color:#04161c;
  background:linear-gradient(135deg,var(--cyan),var(--orange));
  box-shadow:0 0 22px rgba(23,197,184,.4);
}
.brand__text{display:flex;flex-direction:column;line-height:1.3}
.brand__name{font-size:15px;font-weight:700;letter-spacing:.01em}
.brand__sub{font-size:12px;color:var(--dim);letter-spacing:.06em}

/* ============ 侧栏导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;width:var(--side);height:100vh;z-index:60;
  display:flex;flex-direction:column;gap:22px;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,rgba(11,27,38,.97),rgba(7,16,24,.93));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow-y:auto;
}
.side-title{
  font-size:12px;color:var(--dim);letter-spacing:.18em;text-transform:uppercase;
  padding-left:18px;
}
.side-nav{display:flex;flex-direction:column;gap:6px}
.side-nav__item{
  position:relative;display:flex;align-items:center;min-height:48px;
  padding:0 14px 0 18px;border-radius:12px;
  font-size:15px;color:var(--muted);border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.side-nav__item:hover{color:var(--text);background:rgba(255,255,255,.055);border-color:rgba(127,216,210,.14)}
.side-nav__item:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:2px}
.side-nav__item.is-active{color:var(--text);background:rgba(23,197,184,.10);border-color:var(--line)}
.side-nav__item.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--cyan),var(--orange));
  box-shadow:0 0 12px rgba(23,197,184,.75);
}
.side-cta{
  margin-top:auto;padding:18px;border-radius:var(--radius);
  background:var(--glass-soft);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.side-cta p{margin:0 0 12px;font-size:13px;color:var(--muted);line-height:1.7}
.side-cta .btn{width:100%}

/* ============ 顶栏（移动端） ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:50;height:64px;
  align-items:center;justify-content:space-between;gap:12px;padding:0 16px;
  background:rgba(7,16,24,.9);border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.topbar .brand__mark{width:36px;height:36px;border-radius:11px;font-size:16px}
.topbar .brand__name{font-size:14px}
.topbar .brand__sub{font-size:11px}
.burger{
  width:48px;height:48px;border-radius:12px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--cyan-soft);transition:transform .2s ease,opacity .2s ease}
.burger:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:2px}
.overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:55;
  opacity:0;pointer-events:none;transition:opacity .24s ease;
}
.overlay.is-open{opacity:1;pointer-events:auto}

/* ============ 布局 ============ */
.content{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
}
.btn--primary{
  background:linear-gradient(120deg,var(--cyan),var(--orange));
  color:#04161c;box-shadow:0 0 24px rgba(23,197,184,.35);
}
.btn--primary:hover{filter:brightness(1.08);box-shadow:0 0 34px rgba(23,197,184,.5);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0);filter:brightness(.96)}
.btn--ghost{
  background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text);
}
.btn--ghost:hover{background:rgba(255,255,255,.09);border-color:var(--line-strong);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  letter-spacing:.08em;color:var(--cyan-soft);
  background:rgba(23,197,184,.12);border:1px solid var(--line);
}
.badge--warm{color:#FFD2B8;background:rgba(255,138,76,.14);border-color:rgba(255,138,76,.3)}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;padding:46px 0 44px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg,rgba(7,16,24,.74),rgba(7,16,24,.95)),
    url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--dim);margin-bottom:18px}
.breadcrumb a{color:var(--muted);transition:color .18s ease}
.breadcrumb a:hover{color:var(--cyan-soft)}
.breadcrumb__sep{color:rgba(127,216,210,.4)}
.breadcrumb__now{color:var(--muted);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:clamp(28px,4.4vw,44px);font-weight:800;line-height:1.22;
  max-width:900px;margin:14px 0 18px;
}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.meta__item{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.meta__dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(23,197,184,.8)}

/* ============ 正文 ============ */
.article-section{padding:56px 0 72px}
.article-shell{max-width:800px;margin:0 auto}
.article-body{
  font-size:17px;line-height:1.9;color:#DDEBEF;
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0;line-height:1.9}
.article-body h2{
  position:relative;margin:2.1em 0 .85em;padding-left:20px;
  font-size:clamp(22px,2.6vw,28px);font-weight:700;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.62em;width:12px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  box-shadow:0 0 12px rgba(23,197,184,.6);
}
.article-body h3{
  position:relative;margin:1.7em 0 .7em;padding-left:14px;
  font-size:20px;font-weight:600;color:var(--text);
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(46,111,142,.6));
}
.article-body h4{margin:1.4em 0 .6em;font-size:17px;font-weight:600;color:var(--cyan-soft)}
.article-body a{color:var(--cyan-soft);border-bottom:1px solid rgba(139,227,220,.35);transition:border-color .18s ease,color .18s ease}
.article-body a:hover{color:#fff;border-color:#fff}
.article-body strong{color:#fff;font-weight:700}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:0;list-style:none}
.article-body li{position:relative;padding-left:22px;margin:.5em 0}
.article-body ul > li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(23,197,184,.7);
}
.article-body ol{counter-reset:art}
.article-body ol > li{counter-increment:art}
.article-body ol > li::before{
  content:counter(art);position:absolute;left:0;top:.38em;
  width:18px;height:18px;border-radius:50%;
  font-size:11px;line-height:18px;text-align:center;font-weight:700;color:#04161c;
  background:linear-gradient(135deg,var(--cyan),var(--orange));
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  border-left:3px solid transparent;
  background:linear-gradient(90deg,rgba(23,197,184,.16),rgba(255,138,76,.08) 60%,rgba(255,255,255,.03));
  color:#CFE4E8;font-size:16px;
}
.article-body img{border-radius:12px;margin:1.6em 0;box-shadow:var(--shadow)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--dim);text-align:center;margin-top:10px}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:1.6em 0;
  font-size:15px;
}
.article-body th,.article-body td{
  padding:12px 14px;border:1px solid var(--line);text-align:left;min-width:120px;
}
.article-body th{background:rgba(23,197,184,.10);color:var(--text);font-weight:600}
.article-body pre{
  margin:1.6em 0;padding:16px 18px;border-radius:var(--radius-sm);
  background:#08151d;border:1px solid var(--line);overflow-x:auto;
  font-size:14px;line-height:1.7;color:#BFE6E2;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;padding:2px 6px;border-radius:6px;
  background:rgba(23,197,184,.12);color:var(--cyan-soft);
}
.article-body pre code{padding:0;background:none;color:inherit}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}

/* ============ 文章尾部 ============ */
.article-foot{
  max-width:800px;margin:0 auto;padding-top:32px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.article-foot__note{font-size:13px;color:var(--dim);max-width:48ch}

/* ============ 空态 ============ */
.empty-state{
  max-width:800px;margin:0 auto;padding:56px 28px;text-align:center;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--glass-soft);box-shadow:var(--shadow);
}
.empty-state__mark{
  display:flex;align-items:center;justify-content:center;
  width:56px;height:56px;margin:0 auto 18px;border-radius:18px;
  font-size:22px;font-weight:800;color:#04161c;
  background:linear-gradient(135deg,var(--cyan),var(--orange));
  box-shadow:0 0 26px rgba(23,197,184,.4);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ============ 快捷入口 ============ */
.quick-section{padding:0 0 72px}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quick-card{
  position:relative;display:flex;flex-direction:column;gap:8px;
  padding:22px;border-radius:var(--radius);
  background:var(--glass-soft);border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
}
.quick-card:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(255,255,255,.08)}
.quick-card__k{font-size:12px;letter-spacing:.12em;color:var(--cyan-soft)}
.quick-card__t{font-size:16px;font-weight:600}
.quick-card__d{font-size:13px;color:var(--muted);line-height:1.75}
.quick-card__arrow{margin-top:auto;font-size:14px;color:var(--cyan-soft)}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 84px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px}
.rec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--glass-soft);box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease;
}
.rec-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.rec-card:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:3px}
.rec-card__media{position:relative;aspect-ratio:16/10;background:rgba(23,197,184,.08);overflow:hidden}
.rec-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rec-card:hover .rec-card__media img{transform:scale(1.04)}
.rec-card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,16,24,.05),rgba(7,16,24,.55));
}
.rec-card__body{display:flex;flex-direction:column;gap:10px;padding:20px}
.rec-card__title{font-size:17px;font-weight:600;line-height:1.45}
.rec-card__desc{font-size:13px;color:var(--muted);line-height:1.75}
.rec-card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:var(--dim);margin-top:4px}
.rec-card__meta span:last-child{color:var(--cyan-soft)}

/* ============ CTA ============ */
.cta-section{padding:0 0 88px}
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.5fr 1fr;gap:28px;align-items:center;
  padding:38px;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(23,197,184,.14),rgba(255,138,76,.08) 70%,rgba(255,255,255,.03));
  box-shadow:var(--shadow);
}
.cta-card h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:12px}
.cta-card p{font-size:14px;color:var(--muted);line-height:1.85}
.cta-card__actions{display:flex;flex-direction:column;gap:12px}
.cta-card__actions .btn{width:100%}

/* ============ 页脚 ============ */
.site-footer{
  background:#050D13;border-top:1px solid var(--line);
  padding:64px 0 110px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.9;max-width:36ch}
.footer-col h4{font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--dim);transition:color .18s ease}
.footer-col a:hover{color:var(--cyan-soft)}
.footer-col a:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:3px;border-radius:4px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);
}

/* ============ 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;left:var(--side);right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  height:76px;padding:0 28px;
  background:rgba(7,16,24,.92);border-top:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.sticky-cta__text{font-size:14px;color:var(--muted)}
.sticky-cta__text strong{color:var(--text);font-weight:600}

/* ============ 断点 ============ */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:1023px){
  :root{--side:280px}
  body{padding-bottom:96px}
  .sidebar{
    transform:translateX(-100%);transition:transform .26s ease;
    width:var(--side);box-shadow:0 0 50px rgba(0,0,0,.55);
  }
  .sidebar.is-open{transform:translateX(0)}
  .topbar{display:flex}
  .overlay{display:block}
  .content{margin-left:0}
  .article-hero{padding:34px 0 34px}
  .article-section{padding:44px 0 56px}
  .article-body{font-size:16px}
  .quick-grid{grid-template-columns:1fr}
  .rec-grid{grid-template-columns:1fr 1fr}
  .cta-card{grid-template-columns:1fr;padding:28px}
  .cta-card__actions{flex-direction:row;flex-wrap:wrap}
  .cta-card__actions .btn{width:auto;flex:1 1 180px}
  .sticky-cta{
    left:0;height:auto;min-height:64px;
    padding:8px 14px calc(8px + env(safe-area-inset-bottom));
  }
  .sticky-cta__text{font-size:13px}
  .sticky-cta .btn{flex:0 0 60%;min-height:48px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-hero h1{margin:12px 0 14px}
  .breadcrumb__now{max-width:28ch}
  .rec-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:52px 0 104px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .sticky-cta__text{display:none}
  .sticky-cta{justify-content:center}
  .sticky-cta .btn{flex:0 0 100%}
}
@media (max-width:479px){
  .meta-row{gap:8px}
  .meta__item{font-size:12px;padding:4px 10px}
  .article-body{font-size:15.5px}
  .cta-card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --bg:#071018;
  --panel:#0B1B26;
  --glass:rgba(12,30,40,.72);
  --glass-soft:rgba(255,255,255,.06);
  --line:rgba(127,216,210,.18);
  --line-strong:rgba(127,216,210,.34);
  --cyan:#17C5B8;
  --cyan-soft:#8BE3DC;
  --blue:#2E6F8E;
  --orange:#FF8A4C;
  --text:#EAF4F6;
  --muted:#A9BDC6;
  --weak:#6F8792;
  --danger:#FF6B6B;
  --ok:#3ED598;
  --radius-lg:22px;
  --radius:18px;
  --radius-sm:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-soft:0 6px 18px rgba(0,0,0,.22);
  --sidebar-w:256px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(900px 520px at 82% -8%,rgba(23,197,184,.16),transparent 62%),
    radial-gradient(760px 480px at 6% 108%,rgba(255,138,76,.11),transparent 60%),
    linear-gradient(180deg,#071018 0%,#08141D 55%,#071018 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:.01em;line-height:1.28}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.page{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  z-index:60;display:flex;flex-direction:column;gap:18px;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,rgba(9,24,34,.94),rgba(7,16,24,.97));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.brand{display:flex;align-items:center;gap:12px}
.brand__mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;
  display:grid;place-items:center;
  font-size:19px;font-weight:800;color:#04212A;
  background:linear-gradient(140deg,var(--cyan),#6FE3D6 60%,var(--orange));
  box-shadow:0 0 22px rgba(23,197,184,.4);
}
.brand__text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand__name{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand__sub{font-size:12px;color:var(--weak);letter-spacing:.08em}
.sidebar__nav{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.nav-item{
  position:relative;display:block;padding:12px 14px;border-radius:12px;
  color:var(--muted);font-size:15px;
  border:1px solid transparent;border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.nav-item:hover{color:var(--text);background:var(--glass-soft);border-color:var(--line)}
.nav-item.is-active{
  color:#EAFBFA;background:rgba(23,197,184,.12);
  border-color:var(--line-strong);border-left:3px solid var(--cyan);
  box-shadow:0 0 20px rgba(23,197,184,.18);
}
.sidebar__foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.sidebar__foot p{font-size:13px;color:var(--weak);line-height:1.7}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:64px;
  align-items:center;justify-content:space-between;
  padding:0 18px;
  background:rgba(8,20,28,.92);border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.topbar .brand__mark{width:36px;height:36px;flex:0 0 36px;font-size:16px;border-radius:12px}
.topbar .brand__name{font-size:14px}
.topbar .brand__sub{font-size:11px}
.burger{
  width:46px;height:46px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass-soft);display:flex;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;cursor:pointer;transition:background .18s ease,border-color .18s ease;
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease}
.burger:hover{background:rgba(23,197,184,.14);border-color:var(--line-strong)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:55;
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
body.drawer-open .overlay{opacity:1;visibility:visible}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:14px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
}
.btn--primary{
  color:#03222A;
  background:linear-gradient(120deg,var(--cyan),#5FD8CC 55%,var(--orange));
  box-shadow:0 0 24px rgba(23,197,184,.35);
}
.btn--primary:hover{filter:brightness(1.08);box-shadow:0 0 34px rgba(23,197,184,.5);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{
  color:var(--text);background:var(--glass-soft);border-color:var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn--ghost:hover{border-color:var(--line-strong);background:rgba(23,197,184,.12);transform:translateY(-2px)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:12px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ============ 首屏 ============ */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 76px;
  background-image:linear-gradient(115deg,rgba(7,16,24,.86) 8%,rgba(11,27,38,.74) 52%,rgba(15,44,56,.8) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 300px at 78% 18%,rgba(23,197,184,.22),transparent 68%),
    radial-gradient(420px 260px at 12% 92%,rgba(255,138,76,.16),transparent 66%);
}
.hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:22px}
.crumb a{color:var(--muted);transition:color .18s ease}
.crumb a:hover{color:var(--cyan-soft)}
.crumb span.sep{color:rgba(111,135,146,.6)}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;letter-spacing:.08em;color:var(--cyan-soft);
  background:rgba(23,197,184,.1);border:1px solid var(--line-strong);margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,5.2vw,54px);font-weight:800;line-height:1.15;
  max-width:15em;margin-bottom:20px;
  background:linear-gradient(120deg,#FFFFFF,#CFF6F2 55%,#9FD9E6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__lead{max-width:760px;font-size:17px;color:var(--muted);line-height:1.85}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__trust{
  display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:38px;padding-top:26px;
  border-top:1px solid var(--line);
}
.trust-item{display:flex;align-items:baseline;gap:10px;font-size:14px;color:var(--weak)}
.trust-item b{font-size:22px;font-weight:800;color:var(--cyan-soft)}

/* ============ 板块基础 ============ */
.section{padding:96px 0}
.section--panel{background:linear-gradient(180deg,rgba(11,27,38,.55),rgba(7,16,24,0))}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,3.2vw,36px);font-weight:700}
.section-head h2::before{
  content:"";display:block;width:52px;height:4px;border-radius:4px;margin-bottom:18px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px}

/* ============ 数据小结 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{
  padding:26px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:transform .18s ease,border-color .18s ease;
}
.stat:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.stat b{display:block;font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--cyan-soft);line-height:1.2}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--weak);letter-spacing:.04em}
.stat p{margin-top:12px;font-size:14px;color:var(--muted)}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:14px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(23,197,184,.65),rgba(46,111,142,.3),rgba(255,138,76,.25));
}
.tl-item{position:relative;padding:0 0 34px 58px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:2px;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:700;color:#052A31;
  background:linear-gradient(140deg,var(--cyan),#7FE6DA);
  box-shadow:0 0 0 4px rgba(23,197,184,.12),0 0 18px rgba(23,197,184,.35);
}
.tl-item h3{font-size:19px;font-weight:600;margin-bottom:8px}
.tl-item p{color:var(--muted);font-size:15.5px}
.tl-item .tl-note{
  display:inline-block;margin-top:12px;padding:4px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;color:var(--cyan-soft);
  background:rgba(23,197,184,.1);border:1px solid var(--line);
}

/* ============ 场景图文交替 ============ */
.scene{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;margin-bottom:64px}
.scene:last-child{margin-bottom:0}
.scene--reverse .scene__media{order:2}
.scene__media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:linear-gradient(140deg,rgba(23,197,184,.18),rgba(11,27,38,.9));
  aspect-ratio:16/10;
}
.scene__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.scene__media:hover img{transform:scale(1.03)}
.scene__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(7,16,24,.06),rgba(7,16,24,.55));
}
.scene__badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:.08em;
  color:#EAFBFA;background:rgba(7,16,24,.68);border:1px solid var(--line-strong);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.scene__body h3{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:14px}
.scene__body > p{color:var(--muted)}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--muted)}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:3px;
  background:linear-gradient(140deg,var(--cyan),var(--orange));box-shadow:0 0 10px rgba(23,197,184,.5);
}

/* ============ 核对清单卡 ============ */
.prepare{
  margin-top:56px;padding:32px;border-radius:var(--radius-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.prepare h3{font-size:20px;font-weight:600;margin-bottom:20px}
.prepare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.prepare-item{
  padding:18px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
}
.prepare-item:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(23,197,184,.1)}
.prepare-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:6px}
.prepare-item span{font-size:14px;color:var(--muted)}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px}
.faq details{
  border-radius:var(--radius);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);overflow:hidden;transition:border-color .18s ease,background .18s ease;
}
.faq details[open]{border-color:var(--line-strong);background:rgba(16,38,50,.78)}
.faq details:hover{border-color:var(--line-strong)}
.faq summary{
  cursor:pointer;list-style:none;position:relative;
  padding:20px 58px 20px 22px;font-size:17px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  font-size:16px;font-weight:600;color:var(--cyan-soft);
  background:rgba(23,197,184,.12);border:1px solid var(--line);
  transition:transform .18s ease,background .18s ease;
}
.faq details[open] summary::after{content:"−";background:rgba(255,138,76,.16);color:#FFC5A3}
.faq .faq__body{padding:0 22px 22px;color:var(--muted);font-size:15.5px;line-height:1.9}

/* ============ 底部 CTA ============ */
.cta-band{padding:0 0 96px}
.cta-card{
  position:relative;overflow:hidden;
  padding:52px 44px;border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background-image:linear-gradient(115deg,rgba(8,20,28,.9),rgba(14,40,52,.82)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 240px at 88% 10%,rgba(23,197,184,.24),transparent 70%);
}
.cta-card__text{position:relative;z-index:2;max-width:620px}
.cta-card h2{font-size:clamp(22px,2.8vw,32px);font-weight:700}
.cta-card p{margin-top:14px;color:var(--muted);font-size:15.5px}
.cta-card__actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:auto;padding:72px 0 30px;
  background:linear-gradient(180deg,rgba(8,20,28,.7),rgba(5,12,18,.96));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--weak);max-width:340px;line-height:1.8}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--weak);transition:color .18s ease}
.footer-col a:hover{color:var(--cyan-soft)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(111,135,146,.9);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .prepare-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .page{margin-left:0}
  .sidebar{
    width:280px;max-width:82vw;transform:translateX(-102%);
    transition:transform .24s ease;box-shadow:0 0 40px rgba(0,0,0,.6);
  }
  body.drawer-open .sidebar{transform:translateX(0)}
  .nav-item{min-height:48px;display:flex;align-items:center}
  .section{padding:72px 0}
  .hero{padding:64px 0 60px}
  .scene{gap:32px;margin-bottom:52px}
  .cta-band{padding-bottom:72px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .hero{padding:52px 0 48px}
  .hero__trust{gap:12px 22px}
  .stats{grid-template-columns:1fr;gap:16px}
  .scene{grid-template-columns:1fr;gap:22px}
  .scene--reverse .scene__media{order:0}
  .scene__media{aspect-ratio:16/11}
  .prepare{padding:22px}
  .prepare-grid{grid-template-columns:1fr}
  .cta-card{padding:34px 24px}
  .cta-card__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column}
}
@media (max-width:479px){
  .hero h1{font-size:28px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .tl-item{padding-left:46px}
  .tl-dot{width:26px;height:26px;font-size:12px}
  .timeline::before{left:12px}
}

/* roulang page: category3 */
:root{
  --bg:#071018;
  --panel:#0B1B26;
  --glass:rgba(12,30,40,.72);
  --glass-soft:rgba(255,255,255,.06);
  --line:rgba(127,216,210,.18);
  --line-strong:rgba(127,216,210,.38);
  --cyan:#17C5B8;
  --cyan-soft:#8BE3DC;
  --blue:#2E6F8E;
  --orange:#FF8A4C;
  --text:#EAF4F6;
  --muted:#A9BDC6;
  --weak:#6F8792;
  --r-xl:22px;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-hover:0 16px 42px rgba(0,0,0,.5);
  --sidebar:252px;
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --pad-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1200px 620px at 80% -10%, rgba(23,197,184,.16), transparent 62%),
    radial-gradient(900px 520px at 8% 6%, rgba(255,138,76,.10), transparent 64%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:0;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{letter-spacing:.01em;line-height:1.25;}
:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(23,197,184,.34);color:#fff;}

/* ---------- 容器与通用 ---------- */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.container--narrow{max-width:880px;}
.section{padding:var(--pad-section) 0;position:relative;}
.section--tight{padding-top:64px;padding-bottom:64px;}
.section--panel{
  background:linear-gradient(180deg, rgba(11,27,38,.72), rgba(7,16,24,.35));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--cyan-soft);
  text-transform:uppercase;
  margin-bottom:14px;
}
.kicker::before{
  content:"";
  width:22px;height:1px;
  background:linear-gradient(90deg,var(--cyan),transparent);
}
h2.h2{
  font-size:clamp(24px,3.2vw,34px);
  font-weight:700;
  line-height:1.28;
}
h2.h2::after{
  content:"";
  display:block;
  width:52px;height:3px;
  margin-top:16px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
}
.section-head--center h2.h2::after{margin-left:auto;margin-right:auto;}
.lead{
  margin-top:16px;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.9;
}
.text-muted{color:var(--muted);}
.text-weak{color:var(--weak);font-size:14px;}
.divider{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:13px 24px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15.5px;
  font-weight:600;
  cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),filter var(--t),background var(--t),border-color var(--t);
}
.btn--primary{
  background:linear-gradient(120deg,#17C5B8 0%,#2E6F8E 58%,#FF8A4C 130%);
  color:#05171d;
  box-shadow:0 0 24px rgba(23,197,184,.35);
}
.btn--primary:hover{filter:brightness(1.08);box-shadow:0 0 36px rgba(23,197,184,.52);transform:translateY(-1px);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 0 18px rgba(23,197,184,.3);}
.btn--ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn--ghost:hover{background:rgba(255,255,255,.1);border-color:var(--line-strong);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(1px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn--block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(23,197,184,.1);
  color:var(--cyan-soft);
  font-size:12.5px;
  letter-spacing:.08em;
  line-height:1.6;
}
.badge--warm{background:rgba(255,138,76,.12);color:#FFB98F;border-color:rgba(255,138,76,.3);}

/* ---------- 侧栏导航 ---------- */
.topbar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar);
  display:flex;
  flex-direction:column;
  gap:26px;
  padding:26px 20px 22px;
  background:linear-gradient(180deg, rgba(11,27,38,.94) 0%, rgba(7,16,24,.96) 100%);
  border-right:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  z-index:70;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand__mark{
  flex:0 0 42px;
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(140deg,var(--cyan),var(--blue) 62%,var(--orange));
  color:#04161c;
  font-weight:800;
  font-size:19px;
  box-shadow:0 0 20px rgba(23,197,184,.3);
}
.brand__text{display:flex;flex-direction:column;line-height:1.3;}
.brand__name{font-size:15.5px;font-weight:700;letter-spacing:.01em;}
.brand__sub{font-size:12px;color:var(--weak);letter-spacing:.08em;}
.sidenav{
  flex:1;
  display:flex;
  flex-direction:column;
  gap:6px;
  overflow-y:auto;
}
.sidenav__title{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--weak);
  padding:0 14px 8px;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  min-height:48px;
  padding:11px 14px 11px 18px;
  border-radius:var(--r-sm);
  color:var(--muted);
  font-size:15px;
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav-item::before{
  content:"";
  position:absolute;
  left:3px;top:50%;
  width:3px;height:0;
  border-radius:3px;
  transform:translateY(-50%);
  background:linear-gradient(180deg,var(--cyan),var(--orange));
  box-shadow:0 0 10px rgba(23,197,184,.8);
  transition:height var(--t);
}
.nav-item:hover{background:rgba(255,255,255,.05);color:var(--text);transform:translateX(2px);}
.nav-item.is-active{
  background:rgba(23,197,184,.12);
  color:#fff;
  box-shadow:inset 0 0 0 1px var(--line);
}
.nav-item.is-active::before{height:22px;}
.nav-cta{
  margin-top:auto;
  display:block;
  text-align:center;
  padding:12px 16px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--cyan-soft);
  font-size:14.5px;
  font-weight:600;
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.nav-cta:hover{background:rgba(23,197,184,.16);border-color:var(--line-strong);transform:translateY(-1px);}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  cursor:pointer;
  padding:0;
  place-items:center;
}
.burger span{
  display:block;
  width:18px;height:2px;
  margin:3px auto;
  border-radius:2px;
  background:var(--text);
  transition:transform var(--t),opacity var(--t);
}
body.nav-open .burger span:nth-child(1){transform:translateY(5px) rotate(45deg);}
body.nav-open .burger span:nth-child(2){opacity:0;}
body.nav-open .burger span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.mask{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t),visibility var(--t);
  z-index:75;
}

/* ---------- 页面主体偏移 ---------- */
.page{margin-left:var(--sidebar);}
.site-footer{margin-left:var(--sidebar);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:118px 0 84px;
  border-bottom:1px solid var(--line);
}
.hero__bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  filter:saturate(.9);
}
.hero__veil{
  position:absolute;
  inset:0;
  background:
    radial-gradient(620px 320px at 78% 18%, rgba(255,138,76,.20), transparent 66%),
    radial-gradient(680px 380px at 12% 82%, rgba(23,197,184,.20), transparent 68%),
    linear-gradient(118deg, rgba(7,16,24,.94) 0%, rgba(11,27,38,.78) 46%, rgba(7,16,24,.9) 100%);
}
.hero__inner{position:relative;z-index:2;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--weak);
  margin-bottom:26px;
}
.crumbs a:hover{color:var(--cyan-soft);}
.crumbs span[aria-hidden]{color:var(--weak);opacity:.7;}
.hero h1{
  font-size:clamp(30px,5.2vw,50px);
  font-weight:800;
  line-height:1.15;
  max-width:16em;
}
.hero__lead{
  margin-top:20px;
  max-width:660px;
  color:var(--muted);
  font-size:17px;
  line-height:1.9;
}
.hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px 34px;
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.trust-row li{display:flex;align-items:baseline;gap:8px;font-size:14px;color:var(--muted);}
.trust-row b{
  font-size:22px;
  font-weight:700;
  color:var(--cyan-soft);
  letter-spacing:.02em;
}

/* ---------- 图文长文块 ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.split--reverse .split__media{order:2;}
.split__media{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.split__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.split__media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,16,24,.05), rgba(7,16,24,.55));
}
.split__cap{
  position:absolute;
  left:18px;bottom:16px;
  z-index:2;
  font-size:12.5px;
  color:var(--muted);
  letter-spacing:.04em;
}
.prose p{margin-top:18px;color:var(--muted);line-height:1.95;}
.prose p:first-of-type{margin-top:20px;}
.prose strong{color:var(--text);font-weight:600;}

.checklist{margin-top:26px;display:grid;gap:12px;}
.checklist li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 16px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:15px;
  transition:border-color var(--t),transform var(--t),background var(--t);
}
.checklist li:hover{border-color:var(--line-strong);background:rgba(255,255,255,.07);transform:translateY(-2px);}
.checklist i{
  flex:0 0 22px;
  width:22px;height:22px;
  margin-top:3px;
  border-radius:7px;
  display:grid;place-items:center;
  background:rgba(23,197,184,.16);
  color:var(--cyan-soft);
  font-size:12px;
  font-style:normal;
  font-weight:700;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass-soft);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:border-color var(--t),background var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{
  border-color:var(--line-strong);
  background:rgba(23,197,184,.07);
  box-shadow:0 10px 28px rgba(0,0,0,.3);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:20px 22px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-q{
  flex:1;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
}
.faq-icon{
  position:relative;
  flex:0 0 24px;
  width:24px;height:24px;
  margin-top:2px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  transition:border-color var(--t),transform var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--cyan);
  transform:translate(-50%,-50%);
  border-radius:2px;
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:transform var(--t),opacity var(--t);}
.faq-item[open] .faq-icon{border-color:var(--cyan);}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  padding:0 22px 22px 60px;
  color:var(--muted);
  line-height:1.9;
}
.faq-a p + p{margin-top:12px;}
.faq-a em{color:var(--cyan-soft);font-style:normal;}

/* ---------- 表格 ---------- */
.table-wrap{
  margin-top:32px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow-x:auto;
  background:rgba(255,255,255,.035);
  backdrop-filter:blur(12px);
}
table.hint-table{
  width:100%;
  min-width:620px;
  border-collapse:collapse;
  font-size:15px;
}
table.hint-table th,table.hint-table td{
  padding:16px 20px;
  text-align:left;
  border-bottom:1px solid var(--line);
}
table.hint-table th{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--cyan-soft);
  font-weight:600;
  background:rgba(23,197,184,.07);
  white-space:nowrap;
}
table.hint-table td{color:var(--muted);}
table.hint-table tbody tr:last-child td{border-bottom:0;}
table.hint-table tbody tr:hover td{background:rgba(255,255,255,.04);color:var(--text);}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  margin-top:8px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--line);
}
.stat-bar li{
  background:rgba(11,27,38,.85);
  padding:26px 22px;
  transition:background var(--t);
}
.stat-bar li:hover{background:rgba(23,197,184,.1);}
.stat-bar b{display:block;font-size:clamp(22px,2.6vw,30px);color:var(--cyan-soft);font-weight:700;}
.stat-bar span{display:block;margin-top:6px;font-size:14px;color:var(--muted);}

/* ---------- 信任墙 ---------- */
.trust-wall{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:44px;
}
.quote-card{
  padding:26px 24px;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  background:var(--glass-soft);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.quote-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.quote-card:nth-child(2){transform:translateY(22px);}
.quote-card:nth-child(2):hover{transform:translateY(19px);}
.quote-card:nth-child(3){transform:translateY(8px);}
.quote-card:nth-child(3):hover{transform:translateY(5px);}
.quote-card p{color:var(--muted);line-height:1.9;font-size:15px;}
.quote-card footer{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:12px;
}
.quote-avatar{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(23,197,184,.5),rgba(46,111,142,.6));
  color:#04161c;
  font-weight:700;
  font-size:15px;
}
.quote-meta{display:flex;flex-direction:column;line-height:1.5;}
.quote-meta b{font-size:14.5px;font-weight:600;}
.quote-meta span{font-size:12.5px;color:var(--weak);}
.score-line{display:flex;gap:4px;margin-bottom:12px;}
.score-line i{width:18px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--orange));display:block;}
.logo-wall{
  margin-top:52px;
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:1px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--line);
}
.logo-wall span{
  background:rgba(11,27,38,.8);
  padding:20px 12px;
  text-align:center;
  font-size:14px;
  color:var(--weak);
  letter-spacing:.06em;
  transition:color var(--t),background var(--t);
}
.logo-wall span:hover{color:var(--cyan-soft);background:rgba(23,197,184,.08);}

/* ---------- 时间轴清单 ---------- */
.axis{margin-top:36px;display:grid;gap:0;}
.axis li{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:22px 0;
  border-bottom:1px dashed var(--line);
}
.axis li:last-child{border-bottom:0;}
.axis .num{
  font-size:15px;
  font-weight:700;
  color:var(--cyan-soft);
  letter-spacing:.06em;
  padding-top:2px;
}
.axis h3{font-size:18px;font-weight:600;}
.axis p{margin-top:8px;color:var(--muted);font-size:15px;line-height:1.9;}

/* ---------- 咨询表单卡 ---------- */
.consult{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  overflow:hidden;
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.consult__aside{
  padding:44px 40px;
  background:
    radial-gradient(420px 260px at 20% 10%, rgba(23,197,184,.22), transparent 66%),
    linear-gradient(160deg, rgba(11,27,38,.96), rgba(7,16,24,.98));
  border-right:1px solid var(--line);
}
.consult__aside h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.32;}
.consult__aside p{margin-top:16px;color:var(--muted);font-size:15px;line-height:1.9;}
.consult__list{margin-top:26px;display:grid;gap:12px;}
.consult__list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted);}
.consult__list li::before{
  content:"";
  flex:0 0 6px;
  width:6px;height:6px;
  margin-top:11px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(23,197,184,.8);
}
.consult__form{padding:44px 40px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{position:relative;display:block;}
.field--full{grid-column:1 / -1;}
.field input,.field textarea,.field select{
  width:100%;
  padding:24px 16px 10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  color:var(--text);
  font-size:15.5px;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{min-height:126px;resize:vertical;line-height:1.8;}
.field label{
  position:absolute;
  left:16px;top:17px;
  color:var(--weak);
  font-size:15px;
  pointer-events:none;
  transition:top var(--t),font-size var(--t),color var(--t),letter-spacing var(--t);
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;
  border-color:var(--cyan);
  background:rgba(23,197,184,.07);
  box-shadow:0 0 0 3px rgba(23,197,184,.18);
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label,
.field select:focus + label,
.field select:valid + label{
  top:7px;
  font-size:12px;
  color:var(--cyan-soft);
  letter-spacing:.08em;
}
.field select{appearance:none;padding-top:24px;}
.field .caret{
  position:absolute;
  right:16px;top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--weak);
  border-bottom:2px solid var(--weak);
  transform:translateY(-70%) rotate(45deg);
  pointer-events:none;
}
.field.is-error input,.field.is-error textarea,.field.is-error select{border-color:#E2604F;}
.field.is-error label{color:#E2604F;}
.form-hint{margin-top:14px;font-size:13.5px;color:var(--weak);}
.form-status{margin-top:14px;font-size:14px;display:none;}
.form-status.is-ok{display:block;color:#6FD8A8;}
.form-status.is-err{display:block;color:#FF9B84;}
.form-actions{margin-top:22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(11,27,38,.9), rgba(7,16,24,.98));
  padding:64px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand p{
  margin-top:18px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.9;
  max-width:34em;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--cyan-soft);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a,.footer-col span{
  font-size:14.5px;
  color:var(--muted);
  transition:color var(--t),transform var(--t);
  display:inline-block;
}
.footer-col a:hover{color:var(--cyan-soft);transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:13.5px;
  color:var(--weak);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 26px;}
  .split{gap:36px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .logo-wall{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  :root{--pad-section:72px;}
  body{padding-top:64px;}
  .topbar{
    top:0;right:0;bottom:auto;left:0;
    width:auto;
    height:64px;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:0 16px;
    border-right:0;
    border-bottom:1px solid var(--line);
    gap:12px;
  }
  .brand__sub{display:none;}
  .burger{display:grid;}
  .sidenav{
    position:fixed;
    top:0;left:0;bottom:0;
    width:284px;
    max-width:84vw;
    padding:82px 20px 26px;
    background:rgba(8,19,27,.98);
    border-right:1px solid var(--line);
    backdrop-filter:blur(18px);
    transform:translateX(-102%);
    transition:transform .26s cubic-bezier(.3,.8,.3,1);
    z-index:80;
  }
  body.nav-open .sidenav{transform:translateX(0);}
  body.nav-open .mask{opacity:1;visibility:visible;}
  .page,.site-footer{margin-left:0;}
  .hero{padding:72px 0 56px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split--reverse .split__media{order:0;}
  .trust-wall{grid-template-columns:1fr;gap:18px;}
  .quote-card:nth-child(2),.quote-card:nth-child(3){transform:none;}
  .quote-card:nth-child(2):hover,.quote-card:nth-child(3):hover{transform:translateY(-3px);}
  .consult{grid-template-columns:1fr;}
  .consult__aside{border-right:0;border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  :root{--pad-section:52px;}
  body{font-size:16px;}
  .container{padding:0 18px;}
  .hero{padding:56px 0 46px;}
  .hero__lead{font-size:16px;}
  .hero__actions .btn{width:100%;}
  .trust-row{gap:12px 22px;}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .stat-bar li{padding:20px 16px;}
  .logo-wall{grid-template-columns:repeat(2,1fr);}
  .faq-a{padding:0 20px 20px 20px;}
  .faq-item summary{padding:18px 18px;}
  .axis li{grid-template-columns:44px 1fr;gap:14px;}
  .consult__aside,.consult__form{padding:30px 22px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:479px){
  .hero h1{font-size:28px;}
  .stat-bar{grid-template-columns:1fr;}
  .logo-wall{grid-template-columns:1fr 1fr;}
  .btn{font-size:15px;padding:12px 18px;}
}