/* roulang page: index */
:root{
  --bg:#050A14;
  --bg-2:#0A1120;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --line:rgba(150,190,225,.16);
  --divider:rgba(150,190,225,.10);
  --text:#EAF2FF;
  --text-2:#9FB3CC;
  --text-3:#6B7F99;
  --primary:#2FE3C6;
  --primary-soft:rgba(47,227,198,.12);
  --accent:#FFB35C;
  --warn:#FF6B6B;
  --ok:#43D17A;
  --ink:#04121A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset,0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(47,227,198,.35),0 12px 36px -12px rgba(47,227,198,.35);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 6% 94%,rgba(47,227,198,.08),transparent 70%),
    radial-gradient(760px 460px at 96% 3%,rgba(255,179,92,.05),transparent 72%),
    linear-gradient(rgba(150,190,225,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(150,190,225,.04) 1px,transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-attachment:fixed;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.02em;margin:0;color:var(--text)}
p{margin:0}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:#7BF3E0}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto}
@media (min-width:1200px){.container{max-width:1240px}}
@media (min-width:1400px){.container{max-width:1240px}}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--primary);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--primary);border-radius:2px}
.section-title{
  font-size:clamp(24px,2.6vw,34px);line-height:1.35;
  padding-left:14px;border-left:4px solid var(--primary);
}
.section-desc{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:14px;max-width:640px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
/* 按钮 */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;text-decoration:none;border:0;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-main{background:var(--primary);color:var(--ink);box-shadow:0 10px 30px -14px rgba(47,227,198,.8)}
.btn-main:hover{background:#5CF0D8;color:var(--ink);transform:translateY(-1px);box-shadow:0 14px 36px -12px rgba(47,227,198,.9)}
.btn-main:active{transform:translateY(1px);box-shadow:0 6px 18px -12px rgba(47,227,198,.7)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid rgba(150,190,225,.3)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lg{height:52px;padding:0 32px;font-size:16px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.text-link svg{transition:transform var(--ease)}
.text-link:hover svg{transform:translateX(3px)}
/* 徽章与芯片 */
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;
  border-radius:999px;background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);font-size:12px;letter-spacing:.02em;
}
.chip.is-on{background:var(--primary-soft);border-color:rgba(47,227,198,.5);color:var(--primary);font-weight:600}
.chip-accent{background:rgba(255,179,92,.14);border-color:rgba(255,179,92,.45);color:var(--accent);font-weight:600}
.ribbon{
  position:absolute;top:16px;right:16px;z-index:2;
  height:26px;display:inline-flex;align-items:center;padding:0 12px;
  border-radius:999px;background:rgba(255,179,92,.16);
  border:1px solid rgba(255,179,92,.5);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
/* 卡片 */
.card-glass{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--glass-hi),var(--glass));
  border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  padding:24px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card-glass::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.card-glass:hover{transform:translateY(-4px);border-color:rgba(47,227,198,.4);box-shadow:var(--shadow-hover)}
.thumb{border-radius:12px;overflow:hidden;background:var(--bg-2);aspect-ratio:16/9}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb-43{aspect-ratio:4/3}
/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(8,15,28,.42);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),box-shadow var(--ease),backdrop-filter var(--ease);
}
.site-header.is-stuck{background:rgba(6,11,22,.92);box-shadow:0 8px 24px -12px rgba(0,0,0,.9);backdrop-filter:blur(12px) saturate(130%);-webkit-backdrop-filter:blur(12px) saturate(130%)}
.nav-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(47,227,198,.9),rgba(47,227,198,.25));
  color:var(--ink);
}
.brand-text{
  font-size:16px;font-weight:700;line-height:1.25;color:var(--text);
  letter-spacing:-.01em;max-width:190px;
}
.brand:hover .brand-text{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav-link:hover{color:var(--primary)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(47,227,198,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(47,227,198,.5);background:var(--primary-soft)}
.nav-actions .btn-ghost,.nav-actions .btn-main{height:42px;padding:0 20px;font-size:14px}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text);place-items:center;
}
.search-bar{
  max-height:0;overflow:hidden;transition:max-height .25s ease;
  border-top:1px solid transparent;
}
.site-header.search-open .search-bar{max-height:88px;border-top-color:var(--divider)}
.search-inner{display:flex;gap:12px;padding:14px 0 18px}
.search-inner input{
  flex:1;height:46px;border-radius:10px;padding:0 16px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:15px;
}
.search-inner input::placeholder{color:var(--text-3)}
.search-inner input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,227,198,.18)}
/* 移动抽屉 */
.mobile-drawer{
  position:fixed;top:76px;left:0;right:0;bottom:0;z-index:1035;
  background:rgba(5,10,20,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:20px 20px 40px;overflow-y:auto;
  transform:translateX(100%);transition:transform .25s ease;
}
body.drawer-open .mobile-drawer{transform:translateX(0)}
body.drawer-open{overflow:hidden}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 4px;color:var(--text);font-size:16px;
  border-bottom:1px solid var(--divider);
}
.drawer-link.is-active{color:var(--primary);font-weight:600}
.drawer-actions{display:flex;gap:12px;margin-top:24px}
.drawer-actions .btn-main,.drawer-actions .btn-ghost{flex:1;padding:0 12px}
/* Hero */
.hero{position:relative;padding:150px 0 88px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(5,10,20,.62),rgba(5,10,20,.95)),url("/assets/images/backpic/back-1.png");
  background-size:auto,cover;
  background-position:center,center;
  background-repeat:no-repeat,no-repeat;
  opacity:.92;
}
.hero>.container{position:relative;z-index:1}
.hero-title{
  font-size:clamp(30px,4.2vw,54px);line-height:1.22;font-weight:800;letter-spacing:-.02em;
}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-sub{color:var(--text-2);font-size:17px;line-height:1.85;margin-top:20px;max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-badges .chip{height:30px}
.device-card{padding:20px;border-radius:var(--r-lg)}
.device-top{display:flex;align-items:center;gap:8px;margin-bottom:16px}
.dot{width:8px;height:8px;border-radius:50%;background:rgba(150,190,225,.35)}
.dot:first-child{background:var(--primary);box-shadow:0 0 10px rgba(47,227,198,.8)}
.device-url{margin-left:8px;font-size:12px;color:var(--text-3);letter-spacing:.04em}
.fake-field{margin-bottom:14px}
.fake-field span{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px}
.fake-input{
  height:46px;border-radius:10px;display:flex;align-items:center;padding:0 14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-3);font-size:14px;
}
.fake-btn{
  height:46px;border-radius:999px;display:grid;place-items:center;
  background:var(--primary);color:var(--ink);font-weight:600;font-size:15px;
  box-shadow:0 10px 26px -14px rgba(47,227,198,.9);
}
.device-img{margin-top:16px;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--bg-2)}
.device-img img{width:100%;height:100%;object-fit:cover}
.device-list{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;font-size:13px;color:var(--text-2)}
.device-list li{display:flex;align-items:center;gap:6px}
.device-list li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary)}
/* 能力摘要条 */
.strip-inner{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-card);overflow:hidden;
}
.strip-item{padding:26px 26px;border-right:1px solid var(--divider)}
.strip-item:last-child{border-right:0}
.strip-item h3{font-size:16px;margin:14px 0 6px}
.strip-item p{font-size:13.5px;color:var(--text-2);line-height:1.7}
.icon-box{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--primary-soft);border:1px solid rgba(47,227,198,.32);color:var(--primary);
}
/* 主推网格 */
.lead-card{padding:20px}
.lead-card .thumb{margin-bottom:18px}
.lead-card h3{font-size:22px;line-height:1.45;margin-bottom:10px}
.lead-card h3 a{color:var(--text)}
.lead-card h3 a:hover{color:var(--primary)}
.lead-card p{color:var(--text-2);font-size:14.5px;line-height:1.8}
.lead-card .btn-main{margin-top:20px}
.side-card{display:flex;flex-direction:column;height:100%}
.side-card h3{font-size:17px;line-height:1.5;margin:16px 0 8px}
.side-card p{font-size:14px;color:var(--text-2);line-height:1.75;flex:1}
.side-card .text-link{margin-top:16px}
.std-card h3{font-size:17px;line-height:1.5;margin:16px 0 8px}
.std-card h3 a{color:var(--text)}
.std-card h3 a:hover{color:var(--primary)}
.std-card p{font-size:14px;color:var(--text-2);line-height:1.75}
/* 评价轮播 */
.review-wrap{position:relative}
.review-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 12px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc((100% - 40px)/3);scroll-snap-align:start;
  padding:24px;border-radius:var(--r-md);
  background:linear-gradient(180deg,var(--glass-hi),var(--glass));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.review-card:hover{transform:translateY(-4px);border-color:rgba(47,227,198,.4);box-shadow:var(--shadow-hover)}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(47,227,198,.85),rgba(47,227,198,.2));
  color:var(--ink);font-weight:700;font-size:15px;
}
.review-name{font-size:15px;font-weight:600}
.review-tag{font-size:12px;color:var(--text-3)}
.stars{display:flex;gap:3px;margin:14px 0 10px;color:var(--accent)}
.review-text{font-size:14.5px;color:var(--text-2);line-height:1.8}
.review-nav{display:flex;align-items:center;gap:12px}
.round-btn{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.round-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}
.dots{display:flex;align-items:center;gap:8px;justify-content:center;margin-top:20px}
.dots i{display:block;width:8px;height:8px;border-radius:999px;background:rgba(150,190,225,.3);transition:all var(--ease)}
.dots i.on{width:20px;background:var(--primary)}
/* 保障条 */
.guard-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.guard-item{padding:24px;border-right:1px solid var(--divider);display:flex;gap:14px;align-items:flex-start}
.guard-item:last-child{border-right:0}
.guard-item h3{font-size:15px;margin-bottom:4px}
.guard-item p{font-size:13px;color:var(--text-2);line-height:1.7}
/* 资讯列表 */
.news-panel{padding:20px;height:100%}
.news-panel h3{font-size:16px;margin-bottom:14px;color:var(--text-2);font-weight:600;letter-spacing:.02em}
.news-row{display:block;padding:14px 0;border-bottom:1px solid var(--divider)}
.news-row:last-child{border-bottom:0}
.news-row:hover .news-title{color:var(--primary)}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-3);margin-bottom:6px;flex-wrap:wrap}
.badge-cat{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  background:var(--primary-soft);border:1px solid rgba(47,227,198,.35);
  color:var(--primary);font-size:11.5px;font-weight:600;
}
.news-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.6;transition:color var(--ease)}
.news-sum{display:block;font-size:13px;color:var(--text-3);margin-top:4px;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.lead-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.empty-card{
  padding:56px 24px;text-align:center;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
}
.empty-card p{color:var(--text-2);font-size:14.5px;margin:14px 0 20px}
/* CTA */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  padding:56px 48px;
}
.cta-card::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(100deg,rgba(5,10,20,.94),rgba(5,10,20,.78)),url("/assets/images/coverpic/cover-2.png");
  background-size:auto,cover;background-position:center,center;background-repeat:no-repeat,no-repeat;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);line-height:1.4}
.cta-inner p{color:var(--text-2);font-size:15px;margin-top:10px}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap}
/* FAQ */
.faq-item{
  background:linear-gradient(180deg,var(--glass-hi),var(--glass));
  border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(47,227,198,.34)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;text-align:left;
  color:var(--text);font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q .mark{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-q .mark::before,.faq-q .mark::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-q .mark::before{left:0;top:7px;width:16px;height:2px}
.faq-q .mark::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-q .mark::after{transform:rotate(90deg);opacity:0}
.faq-a{display:none;padding:0 22px 20px;border-top:1px solid var(--divider);margin-top:0}
.faq-item.is-open .faq-a{display:block}
.faq-a p{padding-top:14px;font-size:15px;line-height:1.85;color:var(--text-2)}
/* 页脚 */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-3);font-size:13.5px;line-height:1.9;max-width:300px}
.footer-col h4{font-size:14px;color:var(--text-2);font-weight:600;margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--text-3);font-size:14px;line-height:1.8}
.footer-col a:hover{color:var(--primary)}
.qr-box{
  width:96px;height:96px;border-radius:12px;border:1px dashed rgba(150,190,225,.32);
  display:grid;place-items:center;color:var(--text-3);font-size:12px;text-align:center;
  line-height:1.5;padding:8px;margin-top:14px;
}
.footer-contact{color:var(--text-3);font-size:13.5px;line-height:1.9}
.footer-contact strong{color:var(--text-2);font-weight:600}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--divider);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}
/* 响应式 */
@media (max-width:1199.98px){
  .nav-links{gap:18px}
  .brand-text{max-width:160px;font-size:15px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .hero{padding:126px 0 68px}
  .container{padding-left:24px;padding-right:24px}
  .nav-links,.nav-actions .btn-ghost,.nav-actions .btn-main,.nav-actions .icon-btn{display:none}
  .menu-toggle{display:grid}
  .nav-inner{height:64px}
  .mobile-drawer{top:64px}
  .strip-inner{grid-template-columns:repeat(2,1fr)}
  .strip-item{border-right:0;border-bottom:1px solid var(--divider)}
  .strip-item:nth-child(odd){border-right:1px solid var(--divider)}
  .strip-item:nth-last-child(-n+2){border-bottom:0}
  .guard-bar{grid-template-columns:repeat(2,1fr)}
  .guard-item{border-right:0;border-bottom:1px solid var(--divider)}
  .guard-item:nth-child(odd){border-right:1px solid var(--divider)}
  .guard-item:nth-last-child(-n+2){border-bottom:0}
  .review-card{flex:0 0 calc((100% - 20px)/2)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-card{padding:40px 28px}
}
@media (max-width:767.98px){
  .hero-sub{font-size:16px}
  .hero-btns .btn-main,.hero-btns .btn-ghost{flex:1 1 auto;padding:0 20px}
  .section-head{flex-direction:column;align-items:flex-start}
  .device-card{margin-top:8px}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px}
  .section{padding:52px 0}
  .hero{padding:110px 0 52px}
  .strip-inner{grid-template-columns:1fr}
  .strip-item{border-right:0!important;border-bottom:1px solid var(--divider)}
  .strip-item:last-child{border-bottom:0}
  .guard-bar{grid-template-columns:1fr}
  .guard-item{border-right:0!important;border-bottom:1px solid var(--divider)}
  .guard-item:last-child{border-bottom:0}
  .review-card{flex:0 0 100%}
  .footer-grid{grid-template-columns:1fr}
  .lead-card h3{font-size:19px}
  .cta-card{padding:32px 20px}
  .cta-btns .btn-main,.cta-btns .btn-ghost{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg:#050A14;
  --surface:#0A1120;
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.075);
  --stroke:rgba(150,190,225,.16);
  --stroke-soft:rgba(150,190,225,.10);
  --primary:#2FE3C6;
  --primary-dim:rgba(47,227,198,.12);
  --amber:#FFB35C;
  --warn:#FF6B6B;
  --ok:#43D17A;
  --text:#EAF2FF;
  --muted:#9FB3CC;
  --dim:#6B7F99;
  --ink:#04121A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset,0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(47,227,198,.35),0 12px 36px -12px rgba(47,227,198,.35);
  --nav-h:76px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  left:-18vw;bottom:-22vh;
  width:60vw;height:60vw;
  max-width:820px;max-height:820px;
  background:radial-gradient(circle at center,rgba(47,227,198,.08),transparent 68%);
  pointer-events:none;z-index:0;
}
body::after{
  content:"";
  position:fixed;
  right:-16vw;top:-20vh;
  width:52vw;height:52vw;
  max-width:720px;max-height:720px;
  background:radial-gradient(circle at center,rgba(255,179,92,.05),transparent 68%);
  pointer-events:none;z-index:0;
}
.grid-lines{
  position:fixed;inset:0;
  background-image:linear-gradient(rgba(150,190,225,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(150,190,225,.04) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:750;letter-spacing:-.015em;line-height:1.28;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px;}
.page-main{position:relative;z-index:1;}

/* ------- header ------- */
.site-header{
  position:fixed;top:0;left:0;right:0;
  z-index:1000;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(8,15,28,.42);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--stroke);
  box-shadow:0 10px 30px -24px rgba(0,0,0,.9);
  transition:background var(--ease),backdrop-filter var(--ease),box-shadow var(--ease);
}
.site-header.is-stuck{
  background:rgba(6,11,22,.92);
  -webkit-backdrop-filter:blur(12px) saturate(130%);
  backdrop-filter:blur(12px) saturate(130%);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.9);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  color:var(--ink);
  background:linear-gradient(140deg,var(--primary),#1FB7A2);
  box-shadow:0 0 0 1px rgba(47,227,198,.45),0 8px 20px -10px rgba(47,227,198,.7);
  flex-shrink:0;
}
.brand-text{
  font-size:16px;font-weight:750;letter-spacing:-.01em;
  color:var(--text);white-space:nowrap;
}
.brand:hover .brand-text{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;color:var(--muted);
  border-radius:var(--r-pill);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(47,227,198,.8);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  display:grid;place-items:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  color:var(--muted);
  transition:all var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(47,227,198,.5);background:rgba(47,227,198,.08);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:var(--ink);
  box-shadow:0 0 0 1px rgba(47,227,198,.4),0 10px 28px -14px rgba(47,227,198,.9);
}
.btn-primary:hover{
  background:#4CF0D6;color:var(--ink);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(47,227,198,.6),0 14px 34px -12px rgba(47,227,198,.95);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,198,.45),0 6px 18px -12px rgba(47,227,198,.7);}
.btn-ghost{
  background:transparent;
  border-color:rgba(150,190,225,.3);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.link-arrow i{transition:transform var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}
.nav-toggle{display:none;}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:1100;
  background:rgba(5,10,20,.92);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  padding:22px;
  display:flex;flex-direction:column;
  transform:translateY(-102%);
  transition:transform 260ms ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;min-height:44px;
  padding:0 6px;font-size:16px;color:var(--muted);
  border-bottom:1px solid var(--stroke-soft);
}
.drawer-nav a.is-active{color:var(--primary);}
.drawer-actions{display:flex;gap:12px;margin-top:26px;}
.drawer-actions .btn{flex:1;}

/* ------- page hero ------- */
.page-hero{
  position:relative;
  padding-top:calc(var(--nav-h) + 56px);
  padding-bottom:56px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--primary);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;margin-bottom:20px;
  border-radius:var(--r-pill);
  background:var(--primary-dim);
  border:1px solid rgba(47,227,198,.4);
  color:var(--primary);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;
  letter-spacing:-.02em;
  max-width:920px;
}
.page-hero h1 .accent{color:var(--primary);}
.hero-lede{
  margin-top:18px;
  max-width:660px;
  font-size:17px;color:var(--muted);
  line-height:1.85;
}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--stroke);
  color:var(--muted);
  font-size:13px;
  transition:all var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(47,227,198,.4);}
.chip.is-on{
  background:var(--primary-dim);
  border-color:rgba(47,227,198,.55);
  color:var(--primary);
  font-weight:600;
}
.hero-band{
  margin-top:40px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--stroke);
  background:var(--surface);
  box-shadow:var(--shadow-card);
  aspect-ratio:21/9;
  position:relative;
}
.hero-band img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.9);
}
.hero-band::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,20,.15),rgba(5,10,20,.82));
}
.hero-band-cap{
  position:absolute;left:0;right:0;bottom:0;
  z-index:2;
  padding:22px 26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--muted);
}
.hero-band-cap .dot{
  width:6px;height:6px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 8px rgba(47,227,198,.85);
}

/* ------- sections ------- */
.section{padding:88px 0;position:relative;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  display:flex;align-items:center;gap:14px;
  font-weight:750;
}
.section-head h2::before{
  content:"";width:4px;height:28px;border-radius:3px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(47,227,198,.55);
  flex-shrink:0;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}

.card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  padding:24px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,198,.4);
  box-shadow:var(--shadow-hover);
  background:var(--glass-2);
}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{color:var(--muted);font-size:15px;}
.card-ico{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--primary-dim);
  border:1px solid rgba(47,227,198,.32);
  color:var(--primary);
  font-size:20px;
  margin-bottom:16px;
}

/* split rows */
.split{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;}
.split.reverse{grid-template-columns:7fr 5fr;}
.split.reverse .split-media{order:2;}
.split.reverse .split-body{order:1;}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--stroke);
  background:var(--surface);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/11;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-body h2{
  font-size:clamp(22px,2.3vw,30px);
  display:flex;align-items:center;gap:12px;margin-bottom:16px;
}
.split-body h2::before{
  content:"";width:4px;height:26px;border-radius:3px;background:var(--primary);
  box-shadow:0 0 12px rgba(47,227,198,.55);flex-shrink:0;
}
.split-body p{color:var(--muted);font-size:16px;line-height:1.85;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--muted);
}
.check-list li i{
  color:var(--primary);font-size:16px;margin-top:4px;flex-shrink:0;
}
.check-list li strong{color:var(--text);font-weight:600;}
.split + .split{margin-top:64px;}
.tag-soft{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;margin-bottom:14px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  background:rgba(255,179,92,.12);
  border:1px solid rgba(255,179,92,.42);
  color:var(--amber);
}

/* channel rows */
.channel-list{display:grid;gap:14px;}
.channel-item{
  display:grid;
  grid-template-columns:56px 1fr auto;
  gap:20px;align-items:center;
  padding:22px 26px;
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.channel-item:hover{
  transform:translateY(-3px);
  border-color:rgba(47,227,198,.4);
  box-shadow:var(--shadow-hover);
}
.channel-item .card-ico{margin-bottom:0;width:56px;height:56px;font-size:22px;border-radius:14px;}
.channel-item h3{font-size:18px;margin-bottom:4px;}
.channel-item p{color:var(--muted);font-size:14.5px;}
.channel-item .link-arrow{white-space:nowrap;}

/* compare bar */
.compare-bar{
  margin-top:36px;
  border-radius:var(--r-md);
  border:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  box-shadow:var(--shadow-card);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  overflow:hidden;
}
.compare-cell{
  padding:24px 26px;
  border-right:1px solid var(--stroke-soft);
}
.compare-cell:last-child{border-right:0;}
.compare-cell span{
  display:block;font-size:12px;letter-spacing:.06em;
  color:var(--dim);margin-bottom:8px;font-weight:600;
}
.compare-cell strong{display:block;font-size:16px;font-weight:700;margin-bottom:6px;}
.compare-cell em{font-style:normal;font-size:14px;color:var(--muted);}

/* faq */
.faq{display:grid;gap:12px;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item.is-open{border-color:rgba(47,227,198,.4);background:var(--glass-2);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  background:transparent;border:0;
  color:var(--text);
  font-size:16px;font-weight:600;text-align:left;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-q .sign{
  color:var(--primary);font-size:20px;line-height:1;
  transition:transform var(--ease);
  flex-shrink:0;
}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 280ms ease;
}
.faq-a-inner{
  padding:14px 22px 20px;
  border-top:1px solid var(--stroke-soft);
  color:var(--muted);font-size:15px;line-height:1.85;
}

/* cta */
.cta-card{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid rgba(47,227,198,.28);
  overflow:hidden;
  background:var(--surface);
  box-shadow:var(--shadow-card);
  display:grid;
  grid-template-columns:1.15fr .85fr;
  align-items:center;
  gap:32px;
  padding:48px;
}
.cta-card img.cta-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.22;z-index:0;
}
.cta-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(5,10,20,.94) 30%,rgba(5,10,20,.72));
}
.cta-copy,.cta-actions{position:relative;z-index:2;}
.cta-copy h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;}
.cta-copy p{color:var(--muted);font-size:16px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* footer */
.site-footer{
  position:relative;z-index:1;
  background:var(--bg);
  border-top:1px solid var(--stroke);
  padding-top:64px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  margin-top:16px;font-size:14px;color:var(--dim);line-height:1.9;max-width:320px;
}
.footer-col h4{
  font-size:14px;font-weight:700;letter-spacing:.06em;
  color:var(--text);margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);line-height:2;}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact{font-size:14px;color:var(--muted);line-height:2;}
.footer-contact strong{color:var(--text);font-weight:600;}
.qr-box{
  margin-top:16px;width:96px;height:96px;
  border:1px dashed rgba(150,190,225,.34);
  border-radius:12px;
  display:grid;place-items:center;
  font-size:12px;color:var(--dim);text-align:center;line-height:1.6;
}
.footer-bottom{
  border-top:1px solid var(--stroke-soft);
  padding:22px 0 30px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--dim);
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:var(--dim);}
.footer-bottom a:hover{color:var(--primary);}

/* search strip */
.search-strip{
  display:none;
  padding:0 0 14px;
}
.search-strip.is-open{display:block;}
.search-strip form{
  display:flex;gap:10px;background:rgba(255,255,255,.05);
  border:1px solid var(--stroke);border-radius:var(--r-pill);
  padding:6px 8px 6px 20px;align-items:center;
}
.search-strip input{
  flex:1;background:transparent;border:0;color:var(--text);font-size:14px;height:36px;
}
.search-strip input::placeholder{color:var(--dim);}
.search-strip input:focus{outline:none;}

/* responsive */
@media (max-width:1199px){
  .container{padding-left:24px;padding-right:24px;}
  .split,.split.reverse{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media,.split.reverse .split-body{order:0;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .header-actions .btn-ghost{display:none;}
  .nav-toggle{display:grid;}
  .section{padding:72px 0;}
  .page-hero{padding-top:calc(var(--nav-h) + 40px);}
  .cta-card{grid-template-columns:1fr;padding:36px;gap:24px;}
  .cta-actions{justify-content:flex-start;}
  .compare-bar{grid-template-columns:1fr;}
  .compare-cell{border-right:0;border-bottom:1px solid var(--stroke-soft);}
  .compare-cell:last-child{border-bottom:0;}
  .channel-item{grid-template-columns:48px 1fr;gap:16px;padding:20px;}
  .channel-item .card-ico{width:48px;height:48px;font-size:19px;}
  .channel-item .link-arrow{grid-column:2;justify-self:start;}
}
@media (max-width:767px){
  :root{--nav-h:64px;}
  .container{padding-left:18px;padding-right:18px;}
  .brand-text{font-size:14px;}
  .section{padding:52px 0;}
  .hero-band{aspect-ratio:16/9;}
  .hero-band-cap{padding:16px 18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{height:44px;padding:0 22px;font-size:14px;}
  .btn-lg{height:48px;padding:0 26px;}
  .card{padding:18px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a-inner{padding:12px 18px 18px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-lede{font-size:15.5px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .chips{gap:8px;}
  .chip{font-size:12px;padding:0 12px;}
  .cta-card{padding:26px;}
  .compare-cell{padding:20px 18px;}
}

/* roulang page: article */
:root{
  --bg:#050A14;
  --bg-2:#0A1120;
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.075);
  --line:rgba(150,190,225,.16);
  --line-soft:rgba(150,190,225,.10);
  --primary:#2FE3C6;
  --primary-dim:rgba(47,227,198,.12);
  --accent:#FFB35C;
  --warn:#FF6B6B;
  --ok:#43D17A;
  --text:#EAF2FF;
  --text-2:#9FB3CC;
  --text-3:#6B7F99;
  --ink:#04121A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(47,227,198,.35), 0 12px 36px -12px rgba(47,227,198,.35);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(circle at 6% 90%, rgba(47,227,198,.08), transparent 42%),
    radial-gradient(circle at 94% 4%, rgba(255,179,92,.05), transparent 40%),
    linear-gradient(rgba(150,190,225,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(150,190,225,.04) 1px, transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{text-decoration:none;color:var(--primary);transition:color .18s ease}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (max-width:991px){.container{padding-left:24px;padding-right:24px}}
@media (max-width:575px){.container{padding-left:18px;padding-right:18px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(8,15,28,.42);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px rgba(0,0,0,.95);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,22,.92);
  -webkit-backdrop-filter:blur(12px) saturate(130%);
  backdrop-filter:blur(12px) saturate(130%);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.9);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:16px;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,rgba(47,227,198,.24),rgba(47,227,198,.06));
  border:1px solid rgba(47,227,198,.38);
  color:var(--primary);
  box-shadow:0 0 18px -6px rgba(47,227,198,.7);
  flex-shrink:0;
}
.brand-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;border-radius:var(--r-pill);
  color:var(--text-2);font-size:15px;font-weight:500;line-height:1.4;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(47,227,198,.9);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
  cursor:pointer;transition:border-color .18s ease,color .18s ease;
}
.menu-toggle:hover{border-color:rgba(47,227,198,.55);color:var(--primary)}
.mobile-drawer{
  position:fixed;inset:0;z-index:1300;display:none;flex-direction:column;gap:10px;
  padding:20px 20px 32px;overflow-y:auto;
  background:rgba(5,10,20,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.mobile-drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head .brand-text{font-weight:800;font-size:15px;color:var(--text)}
.drawer-close{
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid var(--line);color:var(--text);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;padding-top:8px}
.drawer-nav a{
  display:flex;align-items:center;min-height:44px;padding:0 6px;
  color:var(--text-2);font-size:16px;border-bottom:1px solid var(--line-soft);
}
.drawer-nav a:hover,.drawer-nav a:focus-visible{color:var(--primary)}
.drawer-actions{display:grid;grid-template-columns:1fr;gap:10px;margin-top:auto;padding-top:24px}

@media (max-width:991px){
  .nav-links{display:none}
  .nav-actions .nav-login{display:none}
  .menu-toggle{display:inline-flex}
}
@media (max-width:575px){
  .nav-wrap{height:64px;gap:12px}
  .brand-text{font-size:14px;line-height:1.25;white-space:normal;max-width:132px}
  .nav-actions .nav-enter{display:none}
}

/* ---------- buttons & badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn-primary{
  background:var(--primary);color:var(--ink);
  box-shadow:0 0 0 1px rgba(47,227,198,.4), 0 10px 30px -14px rgba(47,227,198,.9);
}
.btn-primary:hover{
  background:#4CF0D6;color:var(--ink);transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(47,227,198,.6), 0 16px 40px -14px rgba(47,227,198,.95);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,198,.4), 0 6px 18px -12px rgba(47,227,198,.8)}
.btn-ghost{
  background:transparent;color:var(--text-2);border-color:rgba(150,190,225,.3);
}
.btn-ghost:hover{color:var(--primary);border-color:rgba(47,227,198,.6);background:rgba(47,227,198,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
}
.badge-primary{background:rgba(47,227,198,.12);border-color:rgba(47,227,198,.4);color:var(--primary)}
.badge-accent{background:rgba(255,179,92,.14);border-color:rgba(255,179,92,.42);color:var(--accent)}

/* ---------- article hero ---------- */
.article-hero{padding:140px 0 44px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(150,190,225,.38)}
.breadcrumb .current{
  color:var(--text);max-width:560px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.28;font-weight:800;letter-spacing:-.02em;
  color:var(--text);margin:16px 0 22px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:13px;color:var(--text-3)}
.meta-item{display:inline-flex;align-items:center;gap:7px;line-height:1.6}
.meta-item svg{width:15px;height:15px;color:var(--primary);opacity:.85;flex-shrink:0}
.meta-item.is-link{cursor:pointer;transition:color .18s ease}
.meta-item.is-link:hover{color:var(--primary)}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;align-items:start;padding-bottom:32px;
}
.article-main{min-width:0}
.article-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-side{display:none}
}

/* ---------- cover ---------- */
.article-cover{
  margin:0 0 12px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);aspect-ratio:16/9;
  box-shadow:var(--shadow-card);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.cover-caption{font-size:13px;color:var(--text-3);text-align:center;margin-bottom:34px;line-height:1.7}

/* ---------- article body ---------- */
.article-body{font-size:16px;line-height:1.85;color:var(--text-2)}
.article-body > p{margin:0 0 20px}
.article-body > p:first-of-type{color:var(--text-2)}
.article-body h2{
  position:relative;font-size:clamp(24px,2.6vw,30px);font-weight:750;
  color:var(--text);letter-spacing:-.01em;line-height:1.35;
  margin:48px 0 20px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:2px;background:var(--primary);box-shadow:0 0 14px rgba(47,227,198,.55);
}
.article-body h3{font-size:20px;font-weight:700;color:var(--text);margin:32px 0 14px;line-height:1.5}
.article-body h4{font-size:17px;font-weight:600;color:var(--text);margin:24px 0 12px}
.article-body ul{margin:0 0 20px;padding:0}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.66em;width:6px;height:6px;
  border-radius:2px;background:var(--primary);
}
.article-body ol{margin:0 0 20px;padding:0;counter-reset:olcounter}
.article-body ol li{
  counter-increment:olcounter;position:relative;padding-left:34px;margin-bottom:12px;
}
.article-body ol li::before{
  content:counter(olcounter);position:absolute;left:0;top:.16em;
  width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;font-weight:700;
  color:var(--primary);background:rgba(47,227,198,.12);
  border:1px solid rgba(47,227,198,.4);
}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--primary);
  color:var(--text);font-size:15.5px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:24px 0 10px;height:auto}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(47,227,198,.45)}
.article-body a:hover{text-decoration-color:var(--primary)}
.article-body strong{color:var(--text);font-weight:650}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:36px 0}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;
  background:var(--glass);border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line-soft);text-align:left;line-height:1.7}
.article-body th{color:var(--text);background:rgba(255,255,255,.05);font-weight:600;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}

/* ---------- empty state ---------- */
.empty-state{
  padding:64px 24px;text-align:center;background:var(--glass);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-card);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;display:grid;place-items:center;
  color:var(--primary);background:rgba(47,227,198,.1);border:1px solid rgba(47,227,198,.32);
}
.empty-title{font-size:20px;font-weight:700;color:var(--text);margin-bottom:10px}
.empty-state p{color:var(--text-3);font-size:14px;margin-bottom:24px}

/* ---------- toc ---------- */
.toc-mobile{
  display:none;margin-bottom:26px;padding:16px 18px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
}
.toc-mobile summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;
  font-size:15px;font-weight:600;color:var(--text);
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";color:var(--primary);font-size:18px;line-height:1}
.toc-mobile[open] summary::after{content:"−"}
.toc-mobile .toc-list{margin-top:12px}
@media (max-width:1199px){.toc-mobile{display:block}}

.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--shadow-card);
}
.side-card h3{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-3);
  margin:0 0 14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;line-height:1.6;
  color:var(--text-2);border-left:2px solid transparent;transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.toc-list a.is-current{
  color:var(--primary);background:rgba(47,227,198,.08);border-left-color:var(--primary);
}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list a{display:block;font-size:14px;line-height:1.65;color:var(--text-2)}
.side-list a:hover{color:var(--primary)}
.side-time{display:block;font-size:12px;color:var(--text-3);margin-top:4px;letter-spacing:.02em}
.login-mini label{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px}
.field{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:14px;font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field::placeholder{color:var(--text-3)}
.field:hover{border-color:rgba(150,190,225,.3)}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,227,198,.18);background:rgba(255,255,255,.06)}
.field-gap{margin-top:12px}

/* ---------- post nav & sections ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;padding:18px 20px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  color:var(--text-2);font-size:13px;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.post-nav a:hover{transform:translateY(-3px);border-color:rgba(47,227,198,.42);box-shadow:var(--shadow-hover)}
.post-nav a .nav-dir{color:var(--text-3);font-size:12px;letter-spacing:.06em}
.post-nav a strong{color:var(--text);font-size:15px;font-weight:600;line-height:1.6}
.post-nav a.next{text-align:right;align-items:flex-end}
@media (max-width:575px){
  .post-nav{grid-template-columns:1fr}
  .post-nav a.next{text-align:left;align-items:flex-start}
}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

.section{padding:96px 0}
.section-tight{padding-top:0}
@media (max-width:991px){.section{padding:72px 0}}
@media (max-width:575px){.section{padding:52px 0}}
.section-head{max-width:660px;margin-bottom:36px}
.section-head h2{
  position:relative;padding-left:16px;font-size:clamp(24px,2.6vw,32px);
  font-weight:750;line-height:1.35;letter-spacing:-.01em;color:var(--text);margin-bottom:12px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 14px rgba(47,227,198,.55);
}
.section-head p{margin:0;color:var(--text-2);font-size:15px;line-height:1.8}

.card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(47,227,198,.4);box-shadow:var(--shadow-hover)}
.card-media{
  display:block;width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:12px;margin-bottom:18px;background:var(--bg-2);
}
.card h3{font-size:17px;font-weight:650;color:var(--text);line-height:1.6;margin-bottom:10px}
.card p{font-size:14px;color:var(--text-3);line-height:1.8;margin-bottom:16px}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.card-link svg{width:14px;height:14px;transition:transform .18s ease}
.card-link:hover svg{transform:translateX(3px)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:991px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media (max-width:575px){.related-grid{grid-template-columns:1fr}}

/* ---------- cta ---------- */
.cta-band{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:36px;align-items:center;
  padding:44px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(47,227,198,.10),rgba(255,255,255,.03) 60%,rgba(255,179,92,.06)),
    var(--glass);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:750;color:var(--text);line-height:1.4;margin-bottom:12px;letter-spacing:-.01em}
.cta-band p{margin:0;color:var(--text-2);font-size:15px;line-height:1.85;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:991px){
  .cta-band{grid-template-columns:minmax(0,1fr);padding:32px 24px;gap:24px}
}

/* ---------- footer ---------- */
.site-footer{background:#050A14;border-top:1px solid var(--line);padding:64px 0 0;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{color:var(--text)}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-3);margin-top:14px;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;line-height:2;color:var(--text-3)}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact{font-size:14px;line-height:2;color:var(--text-3);margin:0}
.footer-contact strong{color:var(--text-2);font-weight:600}
.qr-box{
  width:96px;height:96px;margin-top:16px;border:1px dashed rgba(150,190,225,.3);
  border-radius:12px;display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.5;color:var(--text-3);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:48px;padding:22px 0 28px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding-top:52px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .article-hero{padding-top:110px}
  .btn{height:46px;padding:0 22px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --bg:#050A14;
  --surface:#0A1120;
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.075);
  --stroke:rgba(150,190,225,.16);
  --line:rgba(150,190,225,.10);
  --text:#EAF2FF;
  --text-2:#9FB3CC;
  --text-3:#6B7F99;
  --main:#2FE3C6;
  --main-soft:rgba(47,227,198,.12);
  --amber:#FFB35C;
  --danger:#FF6B6B;
  --ok:#43D17A;
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset,0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(47,227,198,.35),0 12px 36px -12px rgba(47,227,198,.35);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(680px 480px at 2% 98%,rgba(47,227,198,.08),transparent 70%),
    radial-gradient(600px 420px at 98% 2%,rgba(255,179,92,.05),transparent 70%),
    linear-gradient(rgba(150,190,225,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(150,190,225,.04) 1px,transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
}
img{max-width:100%;display:block}
a{color:var(--main);text-decoration:none;transition:color var(--ease)}
a:hover{color:#7CF2DF}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.28;color:var(--text)}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--main);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:32px}
.section{padding-block:96px}
.section-sm{padding-block:64px}
main{position:relative;z-index:1;padding-top:76px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(8,15,28,.42);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--stroke);
  box-shadow:0 6px 24px -18px rgba(0,0,0,.9);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,22,.92);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.9);
}
.header-inner{display:flex;align-items:center;gap:28px;height:76px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  color:#04121A;background:linear-gradient(150deg,#2FE3C6,#57F0D8);
  box-shadow:0 0 0 1px rgba(47,227,198,.45),0 8px 20px -10px rgba(47,227,198,.7);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.02em;line-height:1.2;max-width:190px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;color:var(--text-2);border-radius:999px;transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--main);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:20px;height:2px;border-radius:2px;background:var(--main);
  box-shadow:0 0 10px rgba(47,227,198,.9);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:42px;height:42px;display:grid;place-items:center;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--stroke);color:var(--text-2);
  cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{color:var(--main);border-color:rgba(47,227,198,.45)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  text-decoration:none;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-main{
  background:linear-gradient(150deg,#2FE3C6,#25CDB4);color:#04121A;
  box-shadow:0 0 0 1px rgba(47,227,198,.5),0 10px 26px -14px rgba(47,227,198,.9);
}
.btn-main:hover{color:#04121A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,198,.8),0 14px 34px -12px rgba(47,227,198,1)}
.btn-ghost{background:transparent;border-color:rgba(150,190,225,.3);color:var(--text)}
.btn-ghost:hover{color:var(--main);border-color:rgba(47,227,198,.55);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:0;
  color:var(--main);font-size:15px;font-weight:600;cursor:pointer;
}
.btn-text svg{transition:transform var(--ease)}
.btn-text:hover svg{transform:translateX(3px)}
.hamburger{display:none;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid var(--stroke);color:var(--text);cursor:pointer;place-items:center}
.search-panel{
  position:absolute;top:calc(100% + 10px);right:32px;width:min(360px,calc(100% - 36px));
  background:rgba(10,17,32,.96);border:1px solid var(--stroke);border-radius:var(--r-m);
  padding:14px;box-shadow:0 24px 48px -28px rgba(0,0,0,.95);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all var(--ease);
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.search-field{display:flex;gap:8px}
.search-field input{
  flex:1;height:44px;border-radius:var(--r-s);background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);color:var(--text);padding:0 14px;font-size:15px;
}
.search-field input::placeholder{color:var(--text-3)}
.search-field input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 3px rgba(47,227,198,.18)}

/* ---------- Mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;background:rgba(5,10,20,.96);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:20px 18px 28px;display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .25s ease;overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--stroke);color:var(--text);cursor:pointer;display:grid;place-items:center}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{
  display:flex;align-items:center;height:52px;color:var(--text-2);font-size:16px;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--main);font-weight:600}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.drawer-actions .btn{width:100%}

/* ---------- Page hero ---------- */
.page-hero{padding-block:56px 40px;position:relative}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px;flex-wrap:wrap}
.breadcrumb-nav a{color:var(--text-3)}
.breadcrumb-nav a:hover{color:var(--main)}
.breadcrumb-nav .sep{color:rgba(150,190,225,.35)}
.breadcrumb-nav .current{color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--main-soft);border:1px solid rgba(47,227,198,.35);color:var(--main);
  font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;
}
.page-hero h1{font-size:clamp(30px,4.2vw,54px);font-weight:800;letter-spacing:-.02em;max-width:900px}
.lede{margin-top:18px;max-width:720px;color:var(--text-2);font-size:17px;line-height:1.85}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--stroke);color:var(--text-2);font-size:13px;
  cursor:pointer;transition:all var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(47,227,198,.4)}
.chip.is-on{background:var(--main-soft);border-color:rgba(47,227,198,.55);color:var(--main);font-weight:600}
.banner-figure{margin:38px 0 0;position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--shadow-card)}
.banner-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;background:#0A1120}
.banner-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,20,.15),rgba(5,10,20,.72));
}
.banner-caption{
  position:absolute;left:22px;bottom:18px;z-index:2;font-size:13px;color:var(--text-2);
  background:rgba(5,10,20,.6);border:1px solid var(--stroke);border-radius:999px;padding:6px 14px;
}

/* ---------- Overview strip ---------- */
.strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-m);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.strip-item{padding:22px 24px;border-right:1px solid var(--line)}
.strip-item:last-child{border-right:0}
.strip-item .k{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--text)}
.strip-item .k svg{color:var(--main);flex:0 0 auto}
.strip-item .v{margin-top:6px;font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ---------- Section head ---------- */
.sec-head{max-width:720px;margin-bottom:38px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;padding-left:14px;position:relative}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:var(--main);box-shadow:0 0 12px rgba(47,227,198,.6);
}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15.5px}

/* ---------- Timeline ---------- */
.timeline{list-style:none;padding:0;margin:0}
.tl-item{position:relative;padding-left:46px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:8px;top:14px;width:14px;height:14px;border-radius:50%;
  background:var(--main);box-shadow:0 0 0 4px rgba(47,227,198,.14),0 0 14px rgba(47,227,198,.55);
}
.tl-item::after{
  content:"";position:absolute;left:14px;top:36px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(47,227,198,.4),rgba(150,190,225,.10));
}
.tl-item:last-child::after{display:none}
.tl-card{
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-m);
  padding:24px;box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(47,227,198,.4);box-shadow:var(--shadow-hover)}
.step-no{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--main-soft);border:1px solid rgba(47,227,198,.32);color:var(--main);
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.tl-card h3{margin-top:14px;font-size:20px}
.tl-card p{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.85}
.tl-card figure{margin:18px 0 0;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.tl-card figure img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#0A1120}
.tl-note{
  margin-top:14px;display:flex;gap:10px;align-items:flex-start;
  font-size:13.5px;color:var(--text-3);border-top:1px dashed var(--line);padding-top:12px;
}
.tl-note svg{color:var(--amber);flex:0 0 auto;margin-top:4px}

/* ---------- Sticky login card ---------- */
.sticky-col{position:sticky;top:100px}
.login-card{
  background:linear-gradient(170deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
  border:1px solid var(--stroke);border-radius:var(--r-l);padding:24px;
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.login-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);
}
.login-card .badge-amber{
  position:absolute;right:16px;top:16px;height:24px;display:inline-flex;align-items:center;
  padding:0 10px;border-radius:999px;background:rgba(255,179,92,.16);
  border:1px solid rgba(255,179,92,.45);color:var(--amber);font-size:12px;font-weight:700;
}
.login-card h3{font-size:19px;padding-right:70px}
.login-card .hint{margin-top:8px;font-size:13.5px;color:var(--text-3);line-height:1.7}
.field{margin-top:16px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px}
.field input{
  width:100%;height:46px;border-radius:var(--r-s);background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);color:var(--text);padding:0 14px;font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 3px rgba(47,227,198,.18)}
.login-card .btn{width:100%;margin-top:18px}
.login-card .foot{margin-top:14px;display:flex;justify-content:space-between;font-size:13px;color:var(--text-3)}
.login-card .foot a{color:var(--text-2)}
.login-card .foot a:hover{color:var(--main)}

/* ---------- Prep cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.g-card{
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-m);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.g-card:hover{transform:translateY(-4px);border-color:rgba(47,227,198,.4);box-shadow:var(--shadow-hover)}
.g-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--main-soft);border:1px solid rgba(47,227,198,.3);color:var(--main);
}
.g-card h3{margin-top:16px;font-size:18px}
.g-card p{margin-top:8px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.g-card .tagline{margin-top:14px;font-size:12.5px;color:var(--text-3)}

/* ---------- Notice list ---------- */
.notice-panel{
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-l);
  padding:28px;box-shadow:var(--shadow-card);
}
.notice-list{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.notice-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.8}
.notice-list .dot{
  flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--main);margin-top:11px;
  box-shadow:0 0 8px rgba(47,227,198,.6);
}
.notice-list strong{color:var(--text);font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--glass);border:1px solid var(--stroke);border-radius:var(--r-m);
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(47,227,198,.35)}
.faq-item.open{border-color:rgba(47,227,198,.45);box-shadow:0 0 0 1px rgba(47,227,198,.2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;color:var(--text);text-align:left;
  font-size:16px;font-weight:600;padding:18px 22px;cursor:pointer;
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;border-radius:50%;
  background:rgba(47,227,198,.12);color:var(--main);font-size:18px;line-height:1;
  transition:transform .25s ease,background var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(47,227,198,.22)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a .inner{
  padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.85;
  border-top:1px solid var(--line);margin-top:0;padding-top:16px;
}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--stroke);
  box-shadow:var(--shadow-card);
}
.cta-card .cta-bg{position:absolute;inset:0;z-index:0}
.cta-card .cta-bg img{width:100%;height:100%;object-fit:cover;opacity:.28}
.cta-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(105deg,rgba(5,10,20,.96),rgba(5,10,20,.78));
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 44px}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;max-width:520px}
.cta-inner p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;z-index:1;background:#050A14;border-top:1px solid var(--stroke);
  padding-top:64px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-3);line-height:1.9;max-width:320px}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;font-weight:700}
.footer-col ul{list-style:none;padding:0;display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--text-2);line-height:2}
.footer-col ul a:hover{color:var(--main)}
.footer-contact{font-size:14px;color:var(--text-2);line-height:2}
.footer-contact strong{color:var(--text);font-weight:600}
.qr-box{
  margin-top:16px;width:96px;height:96px;border:1px dashed rgba(150,190,225,.35);
  border-radius:12px;display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
}
.footer-bottom{
  border-top:1px solid var(--line);padding-block:22px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom nav a{color:var(--text-3);font-size:13px}
.footer-bottom nav a:hover{color:var(--main)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-links{margin-left:0}
  .nav-link{padding:0 10px;font-size:14px}
}
@media (max-width:991px){
  .container{padding-inline:24px}
  .section{padding-block:72px}
  main{padding-top:64px}
  .header-inner{height:64px;gap:16px}
  .nav-links,.header-actions .btn-ghost,.header-actions .btn-main,.header-actions .icon-btn{display:none}
  .hamburger{display:grid}
  .brand-text{font-size:15px;max-width:170px}
  .strip{grid-template-columns:repeat(2,1fr)}
  .strip-item:nth-child(2){border-right:0}
  .strip-item:nth-child(1),.strip-item:nth-child(2){border-bottom:1px solid var(--line)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .sticky-col{position:static;margin-top:8px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-panel{right:18px}
}
@media (max-width:767px){
  .page-hero{padding-block:40px 28px}
  .lede{font-size:15.5px}
  .card-grid{grid-template-columns:1fr}
  .banner-figure img{aspect-ratio:16/9}
  .tl-card{padding:18px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a .inner{padding:14px 18px 18px}
}
@media (max-width:575px){
  .container{padding-inline:18px}
  .section{padding-block:52px}
  .strip{grid-template-columns:1fr}
  .strip-item{border-right:0;border-bottom:1px solid var(--line)}
  .strip-item:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .brand-text{font-size:14px;max-width:150px;line-height:1.25}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --bg:#050A14;
  --bg-2:#0A1120;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --stroke:rgba(150,190,225,.16);
  --line:rgba(150,190,225,.10);
  --text:#EAF2FF;
  --text-2:#9FB3CC;
  --text-3:#6B7F99;
  --primary:#2FE3C6;
  --primary-ink:#04121A;
  --amber:#FFB35C;
  --warn:#FF6B6B;
  --ok:#43D17A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(47,227,198,.35), 0 12px 36px -12px rgba(47,227,198,.35);
  --maxw:1240px;
}
*,*::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:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 620px at 6% 94%, rgba(47,227,198,.08), transparent 62%),
    radial-gradient(760px 520px at 94% 4%, rgba(255,179,92,.05), transparent 62%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(150,190,225,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(150,190,225,.04) 1px, transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;}
svg{display:block;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin-left:auto;
  margin-right:auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(8,15,28,.42);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--stroke);
  box-shadow:0 8px 30px -22px rgba(0,0,0,.9);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,22,.92);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.9);
}
.nav-inner{
  display:flex;align-items:center;gap:20px;height:76px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:16px;letter-spacing:-.01em;line-height:1.2;
  color:var(--text);
}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;flex:0 0 auto;
  border-radius:11px;color:var(--primary-ink);
  background:linear-gradient(150deg,rgba(47,227,198,.95),rgba(47,227,198,.45));
  box-shadow:0 0 0 1px rgba(47,227,198,.35), 0 10px 24px -14px rgba(47,227,198,.9);
}
.brand-text{white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:12px;}
.nav-link{
  position:relative;padding:8px 13px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(47,227,198,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--glass);border:1px solid var(--stroke);color:var(--text-2);
  cursor:pointer;transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(47,227,198,.45);background:var(--glass-hi);}
.hamburger{
  display:none;width:42px;height:42px;border-radius:12px;
  align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--stroke);color:var(--text);
  cursor:pointer;transition:color .18s ease,border-color .18s ease;
}
.hamburger:hover{color:var(--primary);border-color:rgba(47,227,198,.45);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-primary-glow{
  background:var(--primary);color:var(--primary-ink);
  box-shadow:0 0 0 1px rgba(47,227,198,.5), 0 12px 30px -16px rgba(47,227,198,.9);
}
.btn-primary-glow:hover{
  background:#5CEED7;color:var(--primary-ink);transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(47,227,198,.7), 0 16px 40px -14px rgba(47,227,198,1);
}
.btn-primary-glow:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,227,198,.5), 0 6px 18px -12px rgba(47,227,198,.8);}
.btn-ghost{background:transparent;border-color:rgba(150,190,225,.3);color:var(--text);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover{color:#5CEED7;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:99;
  background:rgba(6,11,22,.96);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:92px 22px 28px;
  display:flex;flex-direction:column;gap:10px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .3s ease,opacity .3s ease,visibility .3s ease;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:46px;padding:0 16px;
  border-radius:12px;border:1px solid var(--line);
  font-size:16px;color:var(--text-2);background:var(--glass);
  transition:color .18s ease,border-color .18s ease;
}
.mobile-drawer a:hover,.mobile-drawer a:focus{color:var(--primary);border-color:rgba(47,227,198,.45);}
.mobile-drawer .drawer-cta{margin-top:8px;display:grid;gap:10px;}
.mobile-drawer .drawer-cta .btn{width:100%;}
.mobile-drawer .drawer-sep{height:1px;background:var(--line);margin:6px 0;}

/* ---------- 页面通用 ---------- */
main{position:relative;z-index:1;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:800;letter-spacing:-.02em;line-height:1.3;
  margin:0 0 14px;padding-left:16px;border-left:3px solid var(--primary);
}
.section-head p{color:var(--text-2);margin:0;font-size:16px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--primary);
  margin-bottom:14px;text-transform:uppercase;font-weight:600;
}
.eyebrow::before{
  content:"";width:16px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 8px rgba(47,227,198,.8);
}

/* ---------- Hero ---------- */
.page-hero{padding:calc(76px + 64px) 0 56px;position:relative;z-index:1;}
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--text-3);margin-bottom:22px;
}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:var(--text-3);opacity:.6;}
.crumbs .current{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.22;letter-spacing:-.02em;font-weight:800;
  margin:0 0 18px;max-width:600px;
}
.page-hero h1 .hl{color:var(--primary);}
.hero-lead{
  font-size:17px;line-height:1.85;color:var(--text-2);
  max-width:620px;margin:0 0 28px;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);font-size:13.5px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--stroke);
  cursor:pointer;transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.chip:hover{color:var(--text);border-color:rgba(47,227,198,.45);}
.chip.is-active{
  background:rgba(47,227,198,.12);
  border-color:rgba(47,227,198,.55);
  color:var(--primary);
}
.cover-band{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:21/9;background:var(--bg-2);
  border:1px solid var(--stroke);
  box-shadow:var(--shadow-card);
}
.cover-band img{width:100%;height:100%;object-fit:cover;opacity:.9;}
.cover-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,20,.05) 0%,rgba(5,10,20,.78) 100%);
}
.cover-caption{
  position:absolute;left:24px;right:24px;bottom:20px;z-index:2;
  font-size:14px;color:var(--text-2);line-height:1.6;
}

/* ---------- 卡片 ---------- */
.card{
  position:relative;overflow:hidden;
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,198,.4);
  box-shadow:var(--shadow-hover);
}
.card h3{font-size:20px;font-weight:700;letter-spacing:-.01em;line-height:1.4;margin:0 0 10px;}
.card p{font-size:15px;line-height:1.8;color:var(--text-2);margin:0 0 16px;}
.card p:last-child{margin-bottom:0;}
.card-media{
  border-radius:12px;overflow:hidden;aspect-ratio:16/9;
  background:var(--bg-2);border:1px solid var(--line);margin-bottom:18px;
}
.card-media img{width:100%;height:100%;object-fit:cover;}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:var(--glass-hi);border:1px solid var(--stroke);color:var(--text-2);
}
.badge--primary{background:rgba(47,227,198,.12);border-color:rgba(47,227,198,.45);color:var(--primary);}
.badge--amber{background:rgba(255,179,92,.14);border-color:rgba(255,179,92,.42);color:var(--amber);}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}

.security-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:20px;
}
.card-hero{grid-column:span 6;display:flex;flex-direction:column;}
.card-sm{grid-column:span 3;display:flex;flex-direction:column;}
.card-accent{
  grid-column:span 6;
  background:
    linear-gradient(135deg,rgba(47,227,198,.10),rgba(255,255,255,.03) 55%),
    var(--glass);
  border-color:rgba(47,227,198,.28);
}
.card-icon{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:rgba(47,227,198,.12);border:1px solid rgba(47,227,198,.3);
  color:var(--primary);margin-bottom:16px;
}
.check-list{display:grid;gap:12px;margin-top:6px;}
.check-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;line-height:1.7;color:var(--text-2);
}
.check-list li .tick{
  flex:0 0 auto;width:20px;height:20px;border-radius:6px;margin-top:3px;
  display:grid;place-items:center;
  background:rgba(67,209,122,.14);color:var(--ok);
  border:1px solid rgba(67,209,122,.34);
}

/* ---------- 安全须知 ---------- */
.notice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.notice-item{
  display:flex;gap:16px;
  padding:24px;
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  transition:border-color .18s ease,transform .18s ease;
}
.notice-item:hover{border-color:rgba(47,227,198,.38);transform:translateY(-3px);}
.notice-item .notice-icon{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:rgba(47,227,198,.12);color:var(--primary);
  border:1px solid rgba(47,227,198,.3);
}
.notice-item h3{font-size:17px;font-weight:700;margin:0 0 8px;line-height:1.45;}
.notice-item p{font-size:15px;color:var(--text-2);margin:0;line-height:1.8;}

/* ---------- 表格 ---------- */
.table-wrap{
  overflow-x:auto;
  border-radius:var(--r-md);
  border:1px solid var(--stroke);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  -webkit-overflow-scrolling:touch;
}
.risk-table{
  width:100%;border-collapse:collapse;min-width:720px;font-size:15px;
}
.risk-table thead th{
  text-align:left;padding:16px 20px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--text-3);
  background:rgba(255,255,255,.045);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.risk-table td{
  padding:16px 20px;border-bottom:1px solid var(--line);
  color:var(--text-2);line-height:1.75;vertical-align:top;
}
.risk-table tbody tr:last-child td{border-bottom:none;}
.risk-table tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
.risk-table tbody tr:hover{background:rgba(47,227,198,.06);}
.risk-table td:first-child{color:var(--text);font-weight:600;white-space:nowrap;}
.risk-table .tag-now{color:var(--warn);font-weight:600;}
.risk-table .tag-day{color:var(--amber);font-weight:600;}
.risk-table .tag-week{color:var(--primary);font-weight:600;}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:880px;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item:hover{border-color:rgba(47,227,198,.32);}
.faq-item.is-open{border-color:rgba(47,227,198,.4);background:var(--glass-hi);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 22px;
  background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-icon{
  position:relative;flex:0 0 auto;width:18px;height:18px;color:var(--primary);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;border-radius:2px;
  background:currentColor;transform:translate(-50%,-50%);
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;padding:0 22px;
  transition:max-height .32s ease;
}
.faq-item.is-open .faq-a{max-height:460px;}
.faq-a p{
  margin:0;padding:14px 0 20px;border-top:1px solid var(--line);
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--stroke);
  padding:52px;
  background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.28;
}
.cta-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(5,10,20,.96) 0%,rgba(5,10,20,.82) 55%,rgba(5,10,20,.62) 100%);
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-inner h2{
  font-size:clamp(22px,2.4vw,32px);font-weight:800;letter-spacing:-.02em;
  line-height:1.35;margin:0 0 12px;
}
.cta-inner p{color:var(--text-2);font-size:15.5px;line-height:1.85;margin:0;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  background:#050A14;
  border-top:1px solid var(--stroke);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  color:var(--text-3);font-size:14px;line-height:1.9;margin:0;max-width:30em;
}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--text);margin:0 0 16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--text-3);font-size:14px;line-height:2;}
.footer-col a:hover{color:var(--primary);}
.footer-contact{
  color:var(--text-3);font-size:14px;line-height:2;margin:0 0 16px;
}
.footer-contact strong{color:var(--text-2);font-weight:600;}
.qr-box{
  width:96px;height:96px;border-radius:12px;
  border:1px dashed rgba(150,190,225,.3);
  display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--text-3);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{padding:8px 10px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:span 3;}
}
@media (max-width:991px){
  .container{padding-left:24px;padding-right:24px;}
  .nav-links{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .hamburger{display:inline-flex;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .page-hero{padding:calc(76px + 48px) 0 40px;}
  .card-hero{grid-column:span 12;}
  .card-sm{grid-column:span 6;}
  .card-accent{grid-column:span 12;}
  .notice-grid{grid-template-columns:1fr;}
  .cta-card{padding:40px 32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-col:last-child{grid-column:span 2;}
}
@media (max-width:767px){
  .nav-inner{height:64px;}
  .brand{font-size:14.5px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;}
  .nav-actions .icon-btn{display:none;}
  .site-header .btn-primary-glow{height:38px;padding:0 16px;font-size:14px;}
  .page-hero{padding:calc(64px + 40px) 0 36px;}
  .hero-lead{font-size:16px;}
  .cover-band{aspect-ratio:16/9;border-radius:var(--r-md);}
  .cover-caption{left:16px;right:16px;bottom:14px;font-size:13px;}
  .security-grid{grid-template-columns:1fr;gap:16px;}
  .card-hero,.card-sm,.card-accent{grid-column:auto;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .cta-card{padding:32px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
  .page-hero h1{font-size:clamp(26px,7.6vw,34px);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col:last-child{grid-column:auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .chip{height:32px;padding:0 13px;font-size:13px;}
  .card{padding:20px;}
}

/* roulang page: category4 */
:root{
  --bg:#050A14;
  --bg-soft:#0A1120;
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --line:rgba(150,190,225,.16);
  --line-soft:rgba(150,190,225,.10);
  --text:#EAF2FF;
  --text-2:#9FB3CC;
  --text-3:#6B7F99;
  --primary:#2FE3C6;
  --primary-ink:#04121A;
  --amber:#FFB35C;
  --warn:#FF6B6B;
  --ok:#43D17A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(47,227,198,.35), 0 12px 36px -12px rgba(47,227,198,.35);
  --shadow-soft:0 10px 30px -18px rgba(0,0,0,.9);
  --max:1240px;
}
*,*::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:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(150,190,225,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(150,190,225,.04) 1px,transparent 1px);
  background-size:24px 24px;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(620px 420px at 4% 90%, rgba(47,227,198,.08), transparent 70%),
    radial-gradient(520px 360px at 96% 4%, rgba(255,179,92,.05), transparent 70%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.32}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}
body.no-scroll{overflow:hidden}

/* 容器 */
.container{
  width:100%;
  max-width:var(--max)!important;
  margin:0 auto;
  padding-left:32px!important;
  padding-right:32px!important;
}
.section{position:relative;z-index:1;padding:96px 0}
.section--soft{background:linear-gradient(180deg,rgba(10,17,32,.9),rgba(5,10,20,.4))}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--primary);font-weight:600;
  padding:6px 14px;border-radius:var(--pill);
  border:1px solid rgba(47,227,198,.28);
  background:rgba(47,227,198,.08);
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(47,227,198,.8)}
h1{font-size:clamp(30px,4.2vw,54px);font-weight:800;letter-spacing:-.02em;line-height:1.22}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.02em}
h3{font-size:20px;font-weight:700}
.lead{color:var(--text-2);font-size:17px;line-height:1.85}
.muted{color:var(--text-2)}
.tiny{font-size:13px;color:var(--text-3);line-height:1.7}

/* 头部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(8,15,28,.42);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 24px -18px rgba(0,0,0,.9);
  transition:background .25s ease,backdrop-filter .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,22,.92);
  -webkit-backdrop-filter:blur(12px) saturate(130%);
  backdrop-filter:blur(12px) saturate(130%);
  box-shadow:0 8px 24px -12px rgba(0,0,0,.9);
}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(47,227,198,.28),rgba(47,227,198,.06));
  border:1px solid rgba(47,227,198,.42);
  color:var(--primary);
  box-shadow:0 0 18px -6px rgba(47,227,198,.6);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.25;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--pill);
  font-size:14.5px;color:var(--text-2);font-weight:500;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:20px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(47,227,198,.9);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  color:var(--text-2);border:1px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.icon-btn:hover{color:var(--primary);background:rgba(255,255,255,.06);border-color:var(--line)}
.icon-btn[aria-expanded="true"]{color:var(--primary);border-color:rgba(47,227,198,.4);background:rgba(47,227,198,.1)}
.menu-btn{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);place-items:center}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);margin:2px 0;transition:transform .2s ease,opacity .2s ease}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--pill);
  font-size:15px;font-weight:600;letter-spacing:0;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:var(--primary);color:var(--primary-ink)!important;
  box-shadow:0 0 0 0 rgba(47,227,198,0);
}
.btn-primary:hover{
  background:#4ff0d6;color:var(--primary-ink)!important;
  transform:translateY(-1px);
  box-shadow:0 0 24px -4px rgba(47,227,198,.65);
}
.btn-ghost{
  background:transparent;color:var(--text);border-color:rgba(150,190,225,.3);
}
.btn-ghost:hover{
  color:var(--primary);border-color:var(--primary);
  box-shadow:0 0 20px -8px rgba(47,227,198,.6);
  transform:translateY(-1px);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-lg{height:52px;padding:0 32px;font-size:16px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* 顶部搜索条 */
.search-bar{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease,border-color .28s ease;
  border-top:1px solid transparent;
}
.search-bar.is-open{max-height:120px;border-top-color:var(--line-soft)}
.search-form{display:flex;gap:12px;align-items:center;padding:16px 0 20px}
.search-form input{
  flex:1;height:46px;padding:0 18px;border-radius:var(--pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);font-size:15px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input::placeholder{color:var(--text-3)}
.search-form input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(47,227,198,.18);
}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(5,10,20,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:22px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);opacity:0;pointer-events:none;
  transition:transform .28s ease,opacity .28s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text)}
.drawer-links{display:flex;flex-direction:column;margin-top:8px}
.drawer-links a{
  height:52px;display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid var(--line-soft);color:var(--text-2);font-size:16px;
}
.drawer-links a.is-active{color:var(--primary);font-weight:600}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.drawer-actions .btn{width:100%}

/* Hero */
.page-hero{
  position:relative;z-index:1;
  padding:152px 0 84px;
  background:
    linear-gradient(180deg,rgba(5,10,20,.74) 0%,rgba(5,10,20,.92) 62%,rgba(5,10,20,.98) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .now{color:var(--primary)}
.page-hero h1{max-width:900px;margin-bottom:18px}
.page-hero .lead{max-width:720px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 16px;border-radius:var(--pill);
  font-size:13px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.chip:hover{color:var(--text);border-color:rgba(47,227,198,.4)}
.chip.is-active{
  color:var(--primary);border-color:rgba(47,227,198,.55);
  background:rgba(47,227,198,.12);font-weight:600;
}
.search-panel{
  margin-top:36px;max-width:760px;
  padding:14px;border-radius:var(--r-lg);
  background:var(--glass-hi);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.search-panel form{display:flex;gap:10px;align-items:center}
.search-panel input{
  flex:1;min-width:0;height:50px;padding:0 20px;border-radius:var(--pill);
  background:rgba(5,10,20,.72);border:1px solid var(--line);
  color:var(--text);font-size:15px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-panel input::placeholder{color:var(--text-3)}
.search-panel input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,227,198,.18)}
.search-hint{margin-top:12px;font-size:13px;color:var(--text-3)}

/* 保障条 */
.assure-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-card);
}
.assure-item{padding:26px 24px;display:flex;gap:14px;align-items:flex-start;border-right:1px solid var(--line-soft)}
.assure-item:last-child{border-right:0}
.assure-item .ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  color:var(--primary);background:rgba(47,227,198,.1);border:1px solid rgba(47,227,198,.24);
}
.assure-item h3{font-size:15px;margin-bottom:4px}
.assure-item p{font-size:13px;color:var(--text-3);line-height:1.7}

/* FAQ */
.faq-groups{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.faq-group-title{
  display:flex;align-items:center;gap:12px;margin-bottom:16px;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-group-title .num{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--primary);
  background:rgba(47,227,198,.1);border:1px solid rgba(47,227,198,.3);
}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-card);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.faq-item:hover{border-color:rgba(47,227,198,.35);box-shadow:var(--shadow-hover)}
.faq-item.is-open{border-color:rgba(47,227,198,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:12px;text-align:left;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--text);
  border-radius:var(--r-md);
}
.faq-idx{font-size:12px;font-weight:700;color:var(--primary);letter-spacing:.06em;flex:0 0 auto;opacity:.9}
.faq-text{flex:1;min-width:0}
.faq-sign{position:relative;flex:0 0 auto;width:18px;height:18px;color:var(--primary);transition:transform .22s ease}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);transition:opacity .22s ease,transform .22s ease;
}
.faq-sign::before{width:14px;height:2px}
.faq-sign::after{width:2px;height:14px}
.faq-item.is-open .faq-sign::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{padding:0 20px 20px;border-top:1px solid var(--line-soft);margin-top:2px}
.faq-a p{padding-top:14px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-empty{
  margin-top:20px;padding:28px;border-radius:var(--r-md);
  background:var(--glass);border:1px dashed var(--line);
  text-align:center;color:var(--text-2);font-size:15px;
}
.faq-result{margin-top:18px;font-size:13px;color:var(--text-3)}

/* 帮助入口卡 */
.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.help-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.help-card:hover{transform:translateY(-4px);border-color:rgba(47,227,198,.4);box-shadow:var(--shadow-hover)}
.help-card .media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1120}
.help-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.help-card:hover .media img{transform:scale(1.04)}
.help-card .media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,20,.05),rgba(5,10,20,.72));
}
.badge-amber{
  position:absolute;top:14px;right:14px;z-index:2;
  height:26px;padding:0 12px;border-radius:var(--pill);
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;color:#2A1600;
  background:var(--amber);box-shadow:0 8px 20px -10px rgba(255,179,92,.9);
}
.help-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.help-card h3{font-size:20px}
.help-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.help-card .foot{margin-top:auto;padding-top:8px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}

/* 三步自查 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step-card{
  position:relative;
  padding:26px 24px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(47,227,198,.4);box-shadow:var(--shadow-hover)}
.step-card .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  font-size:14px;font-weight:800;color:var(--primary-ink);
  background:var(--primary);margin-bottom:16px;
  box-shadow:0 0 18px -6px rgba(47,227,198,.8);
}
.step-card h3{font-size:17px;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(5,10,20,.92),rgba(5,10,20,.78)),
    url("/assets/images/coverpic/cover-9.png") center/cover no-repeat;
  padding:52px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--shadow-card);
}
.cta-band h2{max-width:520px;margin-bottom:12px}
.cta-band p{color:var(--text-2);max-width:560px;font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.back-row{margin-top:44px;display:flex}

/* 页脚 */
.site-footer{position:relative;z-index:1;background:#050A14;border-top:1px solid var(--line);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-3);line-height:1.9;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--text-3);line-height:2}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact{font-size:14px;color:var(--text-3);line-height:2}
.footer-contact strong{color:var(--text-2);font-weight:600}
.qr-box{
  margin-top:16px;width:96px;height:96px;border-radius:12px;
  border:1px dashed rgba(150,190,225,.35);
  display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
}
.footer-bottom{
  border-top:1px solid var(--line-soft);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom nav a{color:var(--text-3)}
.footer-bottom nav a:hover{color:var(--primary)}

/* 响应式 */
@media (max-width:1199px){
  .nav-links{display:none}
  .menu-btn{display:grid}
  .assure-strip{grid-template-columns:repeat(2,1fr)}
  .assure-item:nth-child(2){border-right:0}
  .assure-item:nth-child(1),.assure-item:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .container{padding-left:24px!important;padding-right:24px!important}
  .section{padding:72px 0}
  .page-hero{padding:132px 0 64px}
  .faq-groups{grid-template-columns:1fr;gap:24px}
  .help-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:16px}
  .cta-band{padding:36px;flex-direction:column;align-items:flex-start;gap:24px}
  .nav-login{display:none}
}
@media (max-width:575px){
  .container{padding-left:18px!important;padding-right:18px!important}
  .section{padding:52px 0}
  .page-hero{padding:112px 0 52px}
  .nav-inner{min-height:64px;gap:12px}
  .brand-text{font-size:14px;white-space:normal;max-width:150px;line-height:1.2}
  .brand-mark{width:30px;height:30px;border-radius:10px}
  .nav-enter{display:none}
  .search-panel{padding:10px;border-radius:var(--r-md)}
  .search-panel form{flex-direction:column;align-items:stretch}
  .search-panel input{height:46px}
  .search-panel .btn{width:100%}
  .assure-strip{grid-template-columns:1fr}
  .assure-item{border-right:0;border-bottom:1px solid var(--line-soft)}
  .assure-item:last-child{border-bottom:0}
  .search-form{flex-direction:column;align-items:stretch;padding:14px 0 18px}
  .search-form input{width:100%}
  .help-card .body{padding:18px}
  .faq-q{padding:16px;font-size:15px}
  .cta-band{padding:26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}