/* roulang page: index */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101B2E;
  --brand:#35D6F5;
  --brand-2:#2FE0A6;
  --gold:#F5B942;
  --text:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --line:rgba(120,180,255,.14);
  --glass:rgba(16,26,44,.62);
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 10px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 44px rgba(0,0,0,.5);
  --sh-glow:0 8px 28px rgba(53,214,245,.32);
  --bs-primary:#35D6F5;
  --bs-body-bg:#060A12;
  --bs-body-color:#EAF2FF;
  --bs-link-color:#35D6F5;
  --bs-link-hover-color:#2FE0A6;
  --bs-border-color:rgba(120,180,255,.14);
  --bs-border-radius:14px;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-2)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.34;letter-spacing:-.01em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* 容器与板块 */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:112px 0;position:relative}
.section--tight{padding:88px 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--grid-bg::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,180,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.sec-head{max-width:780px;margin-bottom:56px;position:relative;z-index:1}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;
  color:var(--brand);background:rgba(53,214,245,.12);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.sec-title{font-size:34px;margin-bottom:16px}
.sec-desc{color:var(--text-2);font-size:16.5px;max-width:720px}
.sec-title .accent{color:var(--brand)}

/* 徽章与标签 */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.04em;background:rgba(53,214,245,.12);color:var(--brand);white-space:nowrap}
.tag--gold{background:rgba(245,185,66,.14);color:var(--gold)}
.tag--mint{background:rgba(47,224,166,.13);color:var(--brand-2)}

/* 按钮 */
.btn-main,.btn-outline-soft,.btn-ghost-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-size:15.5px;font-weight:700;
  cursor:pointer;border:0;transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out;
  min-height:48px;line-height:1.2;
}
.btn-main{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#04121A;box-shadow:var(--sh-glow)}
.btn-main:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 14px 36px rgba(53,214,245,.46)}
.btn-main:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(53,214,245,.3)}
.btn-outline-soft{background:transparent;color:var(--brand);border:1px solid rgba(53,214,245,.5)}
.btn-outline-soft:hover{background:rgba(53,214,245,.08);color:var(--brand);transform:translateY(-2px)}
.btn-outline-soft:active{transform:translateY(1px)}
.btn-ghost-soft{background:rgba(255,255,255,.04);color:var(--text-2);border:1px solid var(--line)}
.btn-ghost-soft:hover{color:var(--text);border-color:rgba(53,214,245,.4);background:rgba(53,214,245,.07)}
.btn-sm{padding:10px 20px;font-size:14px;min-height:42px}

/* 头部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  border-bottom:1px solid transparent;
  transition:background-color .22s ease-out,border-color .22s ease-out,backdrop-filter .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:84px;transition:height .22s ease-out}
.site-header.is-scrolled .nav-inner{height:66px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;font-size:18px;
  box-shadow:0 6px 20px rgba(53,214,245,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17.5px;font-weight:800;letter-spacing:.01em}
.brand-text small{font-size:11.5px;color:var(--text-3);letter-spacing:.08em}
.nav-center{
  display:flex;align-items:center;gap:4px;
  background:rgba(16,26,44,.5);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px;
}
.nav-center a{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-center a:hover{color:var(--text);background:rgba(53,214,245,.08)}
.nav-center a.is-active{color:var(--brand);background:rgba(53,214,245,.12)}
.nav-center a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 10px rgba(53,214,245,.9);
}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(53,214,245,.45);background:rgba(53,214,245,.08)}
.search-pop{
  display:none;align-items:center;gap:8px;
  background:rgba(16,26,44,.9);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:6px 8px 6px 14px;
}
.search-pop.is-open{display:flex}
.search-pop input{
  background:transparent;border:0;color:var(--text);font-size:14.5px;width:170px;outline:none;
}
.search-pop input::placeholder{color:var(--text-3)}
.search-pop button{
  border:0;background:rgba(53,214,245,.14);color:var(--brand);
  border-radius:9px;padding:8px 14px;font-size:14px;cursor:pointer;
}
.search-pop button:hover{background:rgba(53,214,245,.22)}
.nav-toggle{display:none}

/* 移动抽屉 */
.site-drawer{background:var(--bg-1)!important;color:var(--text);width:86vw!important;border-left:1px solid var(--line)}
.site-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.site-drawer .offcanvas-title{font-size:16px;font-weight:700}
.site-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.75}
.site-drawer .offcanvas-body{padding:18px 22px 24px;display:flex;flex-direction:column;gap:8px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;color:var(--text-2);font-size:16px;
  border-bottom:1px solid rgba(120,180,255,.08);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.drawer-foot .btn-main{width:100%}

/* Hero */
.hero{position:relative;padding:172px 0 96px;overflow:hidden;background:var(--bg-0)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(6,10,18,.97) 0%,rgba(6,10,18,.9) 46%,rgba(6,10,18,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;
  background-position:center,center;
}
.hero::after{
  content:"";position:absolute;right:-8%;top:-18%;width:52vw;height:52vw;max-width:720px;max-height:720px;
  background:radial-gradient(circle,rgba(53,214,245,.16),transparent 62%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(245,185,66,.14);color:var(--gold);
  font-size:13px;letter-spacing:.03em;margin-bottom:22px;
}
.hero h1{font-size:clamp(30px,4.2vw,56px);line-height:1.24;margin-bottom:20px}
.hero h1 .hl{color:var(--brand)}
.hero-sub{font-size:17.5px;color:var(--text-2);max-width:600px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:8px}
.hero-media{position:relative}
.hero-media img{
  width:100%;border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.hero-media::before{
  content:"";position:absolute;inset:auto -14px -14px auto;width:120px;height:120px;
  border-right:2px solid rgba(53,214,245,.45);border-bottom:2px solid rgba(53,214,245,.45);
  border-radius:0 0 22px 0;pointer-events:none;
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  display:flex;align-items:center;gap:12px;
  background:rgba(11,18,32,.86);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:14px;
  padding:12px 18px;box-shadow:var(--sh-1);
}
.hero-float i{color:var(--brand-2);font-size:20px}
.hero-float span{font-size:14px;color:var(--text-2)}
.hero-float b{display:block;font-size:15.5px;color:var(--text)}
.stat-strip{
  position:relative;z-index:1;
  margin-top:64px;
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
}
.stat{background:rgba(11,18,32,.78);padding:22px 24px;backdrop-filter:blur(8px)}
.stat b{display:block;font-size:30px;font-weight:800;color:var(--brand);line-height:1.2}
.stat b i{font-size:15px;font-style:normal;color:var(--text-3);margin-left:4px;font-weight:600}
.stat span{font-size:14px;color:var(--text-2)}

/* 痛点卡 */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pain-card{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.pain-card:hover{transform:translateY(-4px);border-color:rgba(53,214,245,.42);box-shadow:var(--sh-2)}
.pain-icon{
  width:48px;height:48px;border-radius:14px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(53,214,245,.12);color:var(--brand);font-size:19px;
}
.pain-card h3{font-size:18px;margin-bottom:8px}
.pain-card p{font-size:15px;color:var(--text-2);line-height:1.8}

/* 解决方案 */
.solution-list{display:flex;flex-direction:column;gap:36px}
.solution-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px;position:relative;overflow:hidden;
}
.solution-row::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),transparent);
}
.solution-row.reverse .sol-media{order:-1}
.sol-num{
  font-size:52px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1.5px rgba(53,214,245,.5);
  letter-spacing:-.04em;margin-bottom:14px;display:block;
}
.solution-row h3{font-size:22px;margin-bottom:14px}
.solution-row p{color:var(--text-2);font-size:15.5px;margin-bottom:18px}
.sol-points{display:flex;flex-direction:column;gap:10px}
.sol-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.sol-points li i{color:var(--brand-2);font-size:13px;margin-top:8px}
.sol-media img{width:100%;border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-1)}

/* 成果区 */
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:56px}
.board-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.board-card:hover{transform:translateY(-3px);border-color:rgba(47,224,166,.42)}
.board-card b{display:block;font-size:34px;font-weight:800;color:var(--brand-2);line-height:1.15}
.board-card b i{font-size:14px;font-style:normal;color:var(--text-3);margin-left:5px;font-weight:600}
.board-card span{font-size:14.5px;color:var(--text-2);display:block;margin-top:6px}
.result-split{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brand),rgba(53,214,245,.08))}
.tl-item{position:relative;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:7px;width:14px;height:14px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 4px rgba(245,185,66,.16);
}
.tl-year{font-size:13px;letter-spacing:.08em;color:var(--gold);display:block;margin-bottom:6px}
.tl-item h3{font-size:18px;margin-bottom:8px}
.tl-item p{font-size:15px;color:var(--text-2);line-height:1.8}
.result-media img{width:100%;border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-2)}

/* 用户反馈滑动 */
.quote-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.quote-nav{display:flex;gap:10px;flex-shrink:0}
.quote-nav button{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text-2);cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.quote-nav button:hover{color:var(--brand);border-color:rgba(53,214,245,.45)}
.quote-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:14px;scrollbar-width:thin}
.quote-track::-webkit-scrollbar{height:6px}
.quote-track::-webkit-scrollbar-thumb{background:rgba(53,214,245,.3);border-radius:6px}
.quote-card{
  flex:0 0 31.2%;scroll-snap-align:start;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);position:relative;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.quote-card:hover{transform:translateY(-3px);border-color:rgba(53,214,245,.4)}
.quote-card .qmark{font-size:46px;line-height:1;color:rgba(53,214,245,.28);font-family:Georgia,serif}
.quote-card p{font-size:15.5px;color:var(--text-2);margin:10px 0 22px;line-height:1.85}
.quote-user{display:flex;align-items:center;gap:14px}
.quote-avatar{
  width:46px;height:46px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(53,214,245,.14);color:var(--brand);font-weight:800;font-size:16px;
}
.quote-user b{display:block;font-size:15px}
.quote-user span{font-size:13px;color:var(--text-3)}
.quote-stars{color:var(--gold);font-size:12.5px;letter-spacing:2px;margin-top:2px}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;color:var(--text);box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(53,214,245,.42);box-shadow:var(--sh-2);color:var(--text)}
.news-badge{align-self:flex-start;font-size:12.5px;padding:4px 12px;border-radius:var(--r-pill);background:rgba(53,214,245,.12);color:var(--brand);margin-bottom:16px}
.news-card h3{font-size:18px;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:20px}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--text-3)}
.news-meta .more{color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.news-empty{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  background:var(--glass);border:1px dashed rgba(120,180,255,.24);border-radius:var(--r-card);
}
.news-empty i{font-size:30px;color:var(--text-3);display:block;margin-bottom:14px}
.news-empty p{color:var(--text-2);font-size:15.5px;margin-bottom:14px}
.news-empty a{font-size:14.5px}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.faq-col{display:flex;flex-direction:column;gap:12px}
.faq .accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.faq .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none;border:0;line-height:1.6;
  transition:color .18s ease-out;
}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:rgba(53,214,245,.06)}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px}
.faq .accordion-button::after{
  content:"";width:16px;height:16px;flex-shrink:0;margin-left:16px;
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-size:16px 2px,2px 16px;
  background-position:center,center;
  background-repeat:no-repeat;
  transition:transform .2s ease-out;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq .accordion-body{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.85;border-left:2px solid var(--brand);margin-left:22px;padding-left:18px}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(16,27,46,.95),rgba(11,18,32,.95)),url('/assets/images/backpic/back-3.png');
  background-size:cover,cover;background-position:center,center;
  border:1px solid var(--line);border-radius:22px;
  padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,214,245,.2),transparent 66%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px;position:relative;z-index:1}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:620px;position:relative;z-index:1}
.cta-band .btn-main{position:relative;z-index:1;flex-shrink:0}

/* 页脚 */
.site-footer{background:#05080F;position:relative;margin-top:112px}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:24px;
  background:radial-gradient(60% 100% at 50% 0,rgba(53,214,245,.22),transparent 70%);
}
.site-footer .top-line{position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(53,214,245,.5),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding:72px 0 48px;position:relative}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{width:38px;height:38px;font-size:17px}
.footer-brand b{font-size:16.5px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-2);margin-bottom:12px}
.footer-contact li i{color:var(--brand);margin-top:7px;font-size:13px;width:16px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* 响应式 */
@media (max-width:1199.98px){
  .nav-center a{padding:8px 12px;font-size:14px}
  .hero-grid{gap:40px}
  .quote-card{flex:0 0 40%}
}
@media (max-width:991.98px){
  .nav-center{display:none}
  .nav-toggle{display:inline-flex}
  .search-pop input{width:120px}
  .hero{padding:150px 0 80px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-media::before{display:none}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .solution-row{grid-template-columns:1fr;gap:28px;padding:30px}
  .solution-row.reverse .sol-media{order:0}
  .result-split{grid-template-columns:1fr;gap:40px}
  .board-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr}
  .quote-card{flex:0 0 52%}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding:84px 0}
  .sec-title{font-size:29px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .brand-text small{display:none}
  .section{padding:64px 0}
  .sec-head{margin-bottom:36px}
  .sec-title{font-size:25px}
  .sec-desc{font-size:15.5px}
  .pain-grid{grid-template-columns:1fr;gap:16px}
  .hero{padding:132px 0 64px}
  .hero-sub{font-size:16px}
  .hero-actions .btn-main,.hero-actions .btn-outline-soft{flex:1 1 100%}
  .hero-float{left:8px;bottom:12px;padding:10px 14px}
  .stat b{font-size:25px}
  .board-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .news-grid{grid-template-columns:1fr}
  .quote-card{flex:0 0 84%}
  .quote-nav{display:none}
  .cta-band{padding:32px 22px;gap:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:56px 0 36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .search-pop{position:absolute;top:74px;right:16px;z-index:20}
}
@media (max-width:575.98px){
  .stat-strip{grid-template-columns:1fr}
  .board-grid{grid-template-columns:1fr}
  .quote-card{flex:0 0 88%}
  .hero h1{font-size:27px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .pain-card:hover,.news-card:hover,.quote-card:hover,.board-card:hover,.btn-main:hover,.btn-outline-soft:hover{transform:none}
}

/* roulang page: article */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101B2E;
  --brand:#35D6F5;
  --brand-2:#2FE0A6;
  --gold:#F5B942;
  --text:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --line:rgba(120,180,255,.14);
  --glass:rgba(16,26,44,.62);
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 10px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 44px rgba(0,0,0,.5);
  --glow:0 8px 28px rgba(53,214,245,.32);
  --ease:cubic-bezier(.32,.72,.32,1);

  --bs-primary:#35D6F5;
  --bs-body-bg:#060A12;
  --bs-body-color:#EAF2FF;
  --bs-link-color:#35D6F5;
  --bs-link-hover-color:#2FE0A6;
  --bs-border-radius:0.75rem;
  --bs-border-color:rgba(120,180,255,.14);
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 88% -6%, rgba(53,214,245,.10), transparent 62%),
    radial-gradient(700px 420px at 4% 12%, rgba(47,224,166,.07), transparent 60%),
    var(--bg-0);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-2)}
h1,h2,h3,h4,h5{margin:0;color:var(--text);font-weight:800;letter-spacing:-.02em;line-height:1.32}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
figure{margin:0}
::selection{background:rgba(53,214,245,.28)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:-.02em}

/* ---------- header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:1040;
  height:84px;display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),height .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-scrolled{
  height:66px;
  background:rgba(6,10,18,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:12px;min-width:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:grid;place-items:center;font-size:17px;color:#04121A;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.06em;white-space:nowrap;margin-top:3px}
.nav-center{
  margin-left:auto;
  display:flex;align-items:center;gap:4px;
  padding:6px;border-radius:999px;
  background:rgba(16,26,44,.55);
  border:1px solid var(--line);
}
.nav-center a{
  padding:8px 15px;border-radius:999px;font-size:14px;color:var(--text-2);
  white-space:nowrap;transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-center a:hover{color:var(--text);background:rgba(53,214,245,.10)}
.nav-center a.is-active{color:var(--brand);background:rgba(53,214,245,.12);box-shadow:inset 0 -2px 0 rgba(53,214,245,.9)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:.2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(53,214,245,.42)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;
  padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}
.btn-primary-glow{
  color:#04121A;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:var(--glow);
}
.btn-primary-glow:hover{color:#04121A;box-shadow:0 12px 34px rgba(53,214,245,.48);transform:translateY(-2px)}
.btn-primary-glow:active{transform:translateY(1px)}
.btn-ghost{color:var(--brand);border-color:rgba(53,214,245,.45);background:transparent}
.btn-ghost:hover{color:var(--brand-2);background:rgba(53,214,245,.08);border-color:rgba(47,224,166,.5)}
.btn-sm{min-height:38px;padding:0 15px;font-size:14px}
.btn-mint{color:#04121A;background:linear-gradient(135deg,var(--brand-2),#1FC48C)}
.btn-mint:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 12px 30px rgba(47,224,166,.34)}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--text);cursor:pointer;place-items:center;font-size:17px}
.hamburger:hover{color:var(--brand);border-color:rgba(53,214,245,.42)}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(3,6,12,.66);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:.22s var(--ease);z-index:1050}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:400px;z-index:1060;
  background:linear-gradient(180deg,#0A1322,#070C16);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:20px 20px 0;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head b{font-size:16px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:6px;padding:16px 0;overflow-y:auto;flex:1}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  font-size:16px;color:var(--text-2);border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brand);background:rgba(53,214,245,.09);border-color:rgba(53,214,245,.22)}
.drawer-foot{padding:16px 0 24px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:118px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb .now{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.post-head{padding:26px 0 8px;max-width:900px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.04em;background:rgba(53,214,245,.12);color:var(--brand);
  border:1px solid rgba(53,214,245,.22);white-space:nowrap}
.tag--gold{background:rgba(245,185,66,.14);color:var(--gold);border-color:rgba(245,185,66,.3)}
.tag--mint{background:rgba(47,224,166,.13);color:var(--brand-2);border-color:rgba(47,224,166,.28)}
.post-head h1{font-size:clamp(28px,4vw,46px);line-height:1.28;margin-bottom:18px}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;color:var(--text-3);font-size:13.5px}
.post-meta .mi{display:inline-flex;align-items:center;gap:7px}
.post-meta .mi i{color:var(--brand);opacity:.85}
.post-meta time{color:var(--text-2)}

.cover-figure{margin:28px 0 0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.cover-figure img{width:100%;aspect-ratio:16/7;object-fit:cover}
.cover-figure figcaption{padding:10px 16px;font-size:12.5px;color:var(--text-3);background:rgba(11,18,32,.9)}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:44px 0 0;align-items:start}
.panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);position:relative;overflow:hidden;
}
.panel::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.55),transparent)}
.article-shell{padding:34px 36px 38px}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.95;color:#DCE6F4;max-width:820px}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.6em}
.article-body h2{font-size:clamp(22px,2.4vw,28px);margin:2.4em 0 .8em;padding-left:16px;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2))}
.article-body h3{font-size:21px;margin:1.8em 0 .6em;color:#F2F7FF}
.article-body h4{font-size:18px;margin:1.5em 0 .5em;color:var(--brand)}
.article-body a{border-bottom:1px solid rgba(53,214,245,.35)}
.article-body strong{color:#fff}
.article-body ul,.article-body ol{margin:0 0 1.6em;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:24px;margin-bottom:.62em}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.74em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(53,214,245,.5)}
.article-body ol{counter-reset:li}
.article-body ol li::before{counter-increment:li;content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;color:var(--brand);font-size:14px;font-weight:800;font-variant-numeric:tabular-nums}
.article-body blockquote{
  margin:1.8em 0;padding:18px 22px;border-left:3px solid var(--brand);border-radius:0 14px 14px 0;
  background:rgba(53,214,245,.07);color:#D6E6F7}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;box-shadow:var(--sh-1);border:1px solid var(--line)}
.article-body figure figcaption{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:-1em;margin-bottom:1.8em}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{padding:11px 15px;border:1px solid var(--line);text-align:left}
.article-body th{background:rgba(53,214,245,.1);color:var(--brand);font-weight:700}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.article-body code{padding:2px 7px;border-radius:6px;background:rgba(53,214,245,.12);color:var(--brand);font-size:.92em}

.empty-state{padding:56px 24px;text-align:center;color:var(--text-2)}
.empty-state i{font-size:34px;color:var(--brand);opacity:.7;display:block;margin-bottom:16px}
.empty-state p{margin-bottom:20px}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{padding:22px}
.side-card h3{font-size:15px;letter-spacing:.06em;color:var(--text-2);font-weight:700;
  text-transform:none;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand);font-size:13px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto}
.toc-list a{display:block;padding:8px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;line-height:1.5}
.toc-list a:hover,.toc-list a.is-current{color:var(--brand);background:rgba(53,214,245,.09);border-left-color:var(--brand)}
.toc-empty{font-size:13.5px;color:var(--text-3)}
.side-links{display:flex;flex-direction:column;gap:10px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.03);
  border:1px solid var(--line);font-size:14px;color:var(--text-2)}
.side-links a:hover{color:var(--brand);border-color:rgba(53,214,245,.4);transform:translateX(2px)}
.side-links a i{font-size:12px;opacity:.7}
.side-cta{background:linear-gradient(150deg,rgba(53,214,245,.16),rgba(47,224,166,.08));text-align:left}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:16px}

/* ---------- related ---------- */
.section{padding:96px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,2.8vw,32px)}
.section-head p{color:var(--text-2);font-size:15px;margin:8px 0 0;max-width:640px}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.18em;color:var(--brand);
  margin-bottom:12px;text-transform:uppercase}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2),var(--glow);border-color:rgba(53,214,245,.42)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.05)}
.card-media .tag{position:absolute;left:14px;top:14px;backdrop-filter:blur(6px)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5}
.card-body p{font-size:14.5px;color:var(--text-2);margin:0;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:6px;
  font-size:13px;color:var(--text-3)}
.card-foot .go{color:var(--brand);font-weight:700}

/* ---------- pager ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
.pager a{padding:20px 22px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:6px;transition:.2s var(--ease)}
.pager a:hover{border-color:rgba(53,214,245,.42);box-shadow:var(--sh-1);transform:translateY(-2px)}
.pager span{font-size:12.5px;color:var(--text-3);letter-spacing:.08em}
.pager b{font-size:15.5px;color:var(--text);font-weight:700}
.back-bar{margin-top:24px;display:flex;justify-content:center}

/* ---------- cta band ---------- */
.cta-band{margin-top:96px}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:44px 44px;border-radius:24px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(53,214,245,.14),rgba(16,26,44,.85) 55%,rgba(47,224,166,.12));
  border:1px solid rgba(53,214,245,.24);
}
.cta-inner::after{content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,214,245,.28),transparent 68%);pointer-events:none}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-inner p{color:var(--text-2);margin:0;max-width:600px}

/* ---------- footer ---------- */
.site-footer{position:relative;margin-top:120px;background:#05080F;padding:0 0 30px;border-top:1px solid var(--line)}
.site-footer .top-line{position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.75),transparent)}
.site-footer::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:560px;height:24px;background:radial-gradient(60% 100% at 50% 0,rgba(53,214,245,.35),transparent 72%);pointer-events:none}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:68px 0 48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand b{font-size:16.5px;line-height:1.4}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:18px}
.footer-col h4{font-size:15px;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:13px}
.footer-contact li{display:flex;gap:10px;font-size:13.8px;color:var(--text-2);line-height:1.7}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .layout{grid-template-columns:minmax(0,1fr) 290px;gap:34px}
  .nav-center a{padding:8px 11px;font-size:13.4px}
}
@media (max-width:1080px){
  .nav-center{display:none}
  .hamburger{display:grid}
  .header-actions .btn-primary-glow{display:none}
  .layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:static;order:2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .wrap{padding:0 16px}
  .header-inner{padding:0 16px;gap:12px}
  .site-header,.site-header.is-scrolled{height:66px}
  .crumb-bar{padding-top:96px}
  .section{padding:72px 0 0}
  .article-shell{padding:26px 20px 28px}
  .article-body{font-size:16.2px;line-height:1.9}
  .cta-inner{padding:32px 24px}
  .pager{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:52px 0 36px;gap:32px}
  .cta-band{margin-top:72px}
  .site-footer{margin-top:84px}
  .cover-figure img{aspect-ratio:16/10}
}
@media (max-width:576px){
  .brand-text b{font-size:15.5px}
  .brand-text em{display:none}
  .card-grid{grid-template-columns:1fr}
  .post-head h1{font-size:27px}
  .post-meta{gap:8px 14px;font-size:13px}
  .crumb .now{max-width:180px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .card:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bs-body-bg:#060A12;
  --bs-body-color:#EAF2FF;
  --bs-primary:#35D6F5;
  --bs-link-color:#35D6F5;
  --bs-link-hover-color:#2FE0A6;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;

  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101B2E;
  --brand:#35D6F5;
  --brand-2:#2FE0A6;
  --gold:#F5B942;
  --text:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --line:rgba(120,180,255,.14);
  --glass:rgba(16,26,44,.62);
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 10px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 44px rgba(0,0,0,.5);
  --sh-glow:0 8px 28px rgba(53,214,245,.32);
  --header-h:84px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--header-h);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg-0);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-2);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  transition:background .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:var(--header-h);
  transition:height .24s ease-out;
}
.site-header.is-scrolled .header-inner{height:66px;}

.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark,.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;font-size:16px;
  box-shadow:0 8px 22px rgba(53,214,245,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:15.5px;letter-spacing:.01em;}
.logo-text i{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.06em;}

.nav-center{
  display:flex;align-items:center;gap:4px;margin:0 auto;
  padding:6px;border:1px solid var(--line);border-radius:999px;
  background:rgba(16,26,44,.55);
}
.nav-center a{
  position:relative;display:block;padding:9px 15px;
  border-radius:999px;font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-center a:hover{color:var(--text);background:rgba(53,214,245,.08);}
.nav-center a.is-active{color:var(--brand);}
.nav-center a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:18px;height:2px;border-radius:2px;transform:translateX(-50%);
  background:var(--brand);box-shadow:0 0 10px var(--brand);
}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(16,26,44,.5);
  color:var(--text-2);font-size:15px;cursor:pointer;
  transition:.2s ease-out;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(53,214,245,.5);background:rgba(53,214,245,.08);}
.menu-btn{display:none;}

.btn-glow,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  border:1px solid transparent;
}
.btn-glow{
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  color:#04121A;box-shadow:var(--sh-glow);
}
.btn-glow:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 14px 34px rgba(53,214,245,.42);}
.btn-glow:active{transform:translateY(0);}
.btn-line{
  border-color:rgba(53,214,245,.55);color:var(--brand);background:transparent;
}
.btn-line:hover{color:var(--brand);background:rgba(53,214,245,.08);transform:translateY(-2px);}
.btn-ghost{border-color:var(--line);color:var(--text-2);background:rgba(255,255,255,.02);}
.btn-ghost:hover{color:var(--text);border-color:rgba(53,214,245,.45);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:1040;background:rgba(3,6,12,.72);
  opacity:0;pointer-events:none;transition:opacity .28s ease-out;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;z-index:1050;
  width:86vw;max-width:370px;height:100%;
  padding:20px 20px 28px;overflow-y:auto;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(104%);transition:transform .28s ease-out;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head span{font-size:14px;color:var(--text-3);letter-spacing:.08em;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--text-2);font-size:15.5px;border:1px solid transparent;
}
.drawer-nav a:hover,.drawer-nav a.is-active{
  color:var(--brand);background:rgba(53,214,245,.08);border-color:rgba(53,214,245,.22);
}
.drawer-cta{margin-top:22px;}

/* ============ 通用区块 ============ */
.section{padding:104px 0;position:relative;}
.section--tight{padding:80px 0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.5;
}
.section--glow::after{
  content:"";position:absolute;width:520px;height:320px;right:-120px;top:-80px;
  background:radial-gradient(ellipse at center,rgba(53,214,245,.14),transparent 70%);
  pointer-events:none;
}
.section > .wrap{position:relative;z-index:1;}

.section-head{max-width:720px;margin-bottom:56px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  letter-spacing:.04em;line-height:1.6;
  background:rgba(53,214,245,.12);color:var(--brand);
  border:1px solid rgba(53,214,245,.24);
}
.tag--gold{background:rgba(245,185,66,.14);color:var(--gold);border-color:rgba(245,185,66,.3);}
.tag--mint{background:rgba(47,224,166,.12);color:var(--brand-2);border-color:rgba(47,224,166,.26);}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;padding:64px 0 72px;
  background:
    radial-gradient(ellipse 70% 60% at 12% 0%,rgba(53,214,245,.16),transparent 62%),
    radial-gradient(ellipse 60% 50% at 92% 18%,rgba(47,224,166,.1),transparent 66%),
    var(--bg-0);
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:56px;align-items:center;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb span[aria-hidden]{color:var(--text-3);opacity:.55;}

.hero-copy h1{
  font-size:clamp(30px,4vw,52px);
  line-height:1.24;margin:16px 0 18px;
}
.hero-copy h1 em{font-style:normal;color:var(--brand);
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hero-sub{font-size:18px;color:var(--text);margin-bottom:14px;}
.hero-desc{color:var(--text-2);font-size:16px;max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

.hero-figure{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:var(--bg-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(6,10,18,0) 40%,rgba(6,10,18,.72));
  pointer-events:none;
}
.figure-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:13px;
  background:rgba(6,10,18,.78);border:1px solid rgba(245,185,66,.4);
  color:var(--gold);backdrop-filter:blur(6px);
}

.stat-strip{
  margin-top:56px;
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.stat-cell{
  padding:22px 22px 20px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.stat-cell:hover{transform:translateY(-3px);border-color:rgba(53,214,245,.4);}
.stat-cell .num{
  font-family:var(--mono);font-size:32px;font-weight:700;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  color:var(--text);line-height:1.1;
}
.stat-cell .num i{font-style:normal;font-size:14px;color:var(--brand);margin-left:5px;letter-spacing:0;}
.stat-cell .lbl{margin-top:8px;font-size:13.5px;color:var(--text-3);letter-spacing:.04em;}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:1040px;margin:0 auto;padding:8px 0;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,rgba(53,214,245,.55) 8%,rgba(53,214,245,.22) 85%,transparent);
}
.tl-item{
  display:grid;grid-template-columns:1fr 76px 1fr;
  align-items:center;margin-bottom:32px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-card{
  grid-column:1;grid-row:1;
  padding:26px 26px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(53,214,245,.42);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);}
.tl-card h3{font-size:20px;margin-bottom:10px;}
.tl-card p{color:var(--text-2);font-size:15.5px;}
.tl-axis{grid-column:2;grid-row:1;display:flex;justify-content:center;align-items:center;}
.tl-dot{
  width:14px;height:14px;border-radius:50%;background:var(--gold);
  box-shadow:0 0 0 5px rgba(245,185,66,.14),0 0 18px rgba(245,185,66,.55);
}
.tl-side{grid-column:3;grid-row:1;padding-left:8px;}
.tl-side .tl-num{
  font-family:var(--mono);font-size:30px;font-weight:700;
  letter-spacing:-.02em;color:rgba(245,185,66,.9);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.tl-side .tl-lbl{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-top:4px;}
.tl-item:nth-child(even) .tl-card{grid-column:3;}
.tl-item:nth-child(even) .tl-side{grid-column:1;grid-row:1;padding-left:0;padding-right:8px;text-align:right;}

/* ============ 里程碑卡 ============ */
.mile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.mile-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.mile-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(53,214,245,.4);}
.mile-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.mile-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.mile-card:hover .thumb img{transform:scale(1.05);}
.mile-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.05),rgba(6,10,18,.6));
}
.mile-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mile-body h3{font-size:19px;}
.mile-body p{color:var(--text-2);font-size:15px;flex:1;}
.mile-body .more{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.mile-card:hover .mile-body .more{gap:10px;}

/* ============ 编号列表 ============ */
.num-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 32px;}
.num-item{
  display:grid;grid-template-columns:64px 1fr;gap:18px;
  padding:24px 22px;border-radius:var(--r-card);
  background:rgba(16,26,44,.4);border:1px solid var(--line);
  transition:border-color .2s ease-out,background .2s ease-out;
}
.num-item:hover{border-color:rgba(53,214,245,.38);background:rgba(16,26,44,.62);}
.num-item .idx{
  font-family:var(--mono);font-size:30px;font-weight:700;
  color:rgba(53,214,245,.55);letter-spacing:-.02em;line-height:1;
  font-variant-numeric:tabular-nums;
}
.num-item h3{font-size:18px;margin-bottom:8px;}
.num-item p{color:var(--text-2);font-size:15px;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 20px;align-items:start;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(16,26,44,.5);overflow:hidden;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.faq-item[open]{border-color:rgba(53,214,245,.42);background:rgba(16,26,44,.72);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:18px 52px 18px 20px;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;
  transform:translateY(-50%);font-size:20px;font-weight:400;
  color:var(--brand);transition:transform .24s ease-out;
}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(53,214,245,.55);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-body{padding:0 20px 20px;color:var(--text-2);font-size:15px;}

/* ============ 继续浏览 ============ */
.next-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.next-card{
  display:block;padding:24px 22px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(16,26,44,.42);
  color:var(--text);
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.next-card:hover{color:var(--text);transform:translateY(-3px);border-color:rgba(53,214,245,.42);background:rgba(16,26,44,.7);}
.next-card .ico{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(53,214,245,.12);color:var(--brand);margin-bottom:14px;font-size:16px;
}
.next-card h3{font-size:17px;margin-bottom:8px;}
.next-card p{color:var(--text-2);font-size:14.5px;margin-bottom:12px;}
.next-card .more{font-size:13.5px;color:var(--brand-2);display:inline-flex;align-items:center;gap:6px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,rgba(53,214,245,.1),rgba(47,224,166,.07)),var(--bg-1);
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:8px;}
.cta-inner p{color:var(--text-2);font-size:15.5px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:#05080F;padding:64px 0 26px;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:560px;height:150px;
  background:radial-gradient(ellipse at top,rgba(53,214,245,.18),transparent 72%);
  pointer-events:none;
}
.site-footer .top-line{
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.6),transparent);
}
.footer-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{font-size:15.5px;color:var(--text);line-height:1.4;}
.footer-col p{color:var(--text-3);font-size:14.5px;line-height:1.85;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:var(--text-3);font-size:14.5px;}
.footer-links a:hover{color:var(--brand);}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;color:var(--text-3);font-size:14.5px;line-height:1.75;}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;}
.footer-bottom{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--line);
  color:var(--text-3);font-size:13.5px;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:var(--text-3);}
.footer-bottom .links a:hover{color:var(--brand);}

/* 进场动画 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-center a{padding:8px 12px;font-size:13.5px;}
  .logo-text b{font-size:14.5px;}
}
@media (max-width:991.98px){
  :root{--header-h:68px;}
  .nav-center{display:none;}
  .header-actions .icon-btn.search-btn{display:none;}
  .menu-btn{display:inline-flex;}
  .logo-text i{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{order:-1;}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:40px;}
  .section{padding:76px 0;}
  .section--tight{padding:64px 0;}
  .section-head{margin-bottom:40px;}

  .timeline::before{left:19px;transform:none;}
  .tl-item{grid-template-columns:40px 1fr;margin-bottom:24px;align-items:start;}
  .tl-item .tl-card{grid-column:2;grid-row:1;}
  .tl-axis{grid-column:1;grid-row:1;justify-content:flex-start;padding-top:26px;}
  .tl-side{grid-column:2;grid-row:2;padding:10px 0 0;text-align:left;}
  .tl-item:nth-child(even) .tl-card{grid-column:2;grid-row:1;}
  .tl-item:nth-child(even) .tl-side{grid-column:2;grid-row:2;padding:10px 0 0;text-align:left;}
  .tl-side .tl-num{font-size:22px;}

  .mile-grid{grid-template-columns:1fr 1fr;}
  .num-list{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .next-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  body{font-size:16px;line-height:1.85;}
  .wrap{padding:0 16px;}
  .section{padding:60px 0;}
  .stat-strip{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-cell{padding:18px 16px;}
  .stat-cell .num{font-size:26px;}
  .hero-copy h1{font-size:30px;}
  .hero-sub{font-size:16.5px;}
  .mile-grid{grid-template-columns:1fr;}
  .next-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-line{flex:1 1 auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101B2E;
  --brand:#35D6F5;
  --brand-2:#2FE0A6;
  --gold:#F5B942;
  --text:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --line:rgba(120,180,255,.14);
  --glass:rgba(16,26,44,.62);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 18px 44px rgba(0,0,0,.5);
  --shadow-glow:0 8px 28px rgba(53,214,245,.32);
  --ease:180ms ease-out;
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text);
  --bs-primary:var(--brand);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-2);
  --bs-border-radius:12px;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),opacity var(--ease)}
a:hover{color:var(--brand-2)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:110px 0;position:relative}
.section--tight{padding:80px 0}
.section-head{max-width:760px;margin-bottom:56px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.12em;color:var(--brand);
  background:rgba(53,214,245,.12);border:1px solid rgba(53,214,245,.25);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.section-head h2{font-size:34px;margin-bottom:16px}
.section-head p{color:var(--text-2);font-size:16.5px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,18,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:84px;
  transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:66px}

.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  color:#04121A;font-size:17px;
  box-shadow:var(--shadow-glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:18px;color:var(--text);letter-spacing:.02em}
.brand-text em{font-size:11px;font-style:normal;color:var(--text-3);letter-spacing:.06em}

.nav-center{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;margin-right:auto;
  padding:6px;border-radius:999px;
  background:rgba(16,26,44,.55);
  border:1px solid var(--line);
}
.nav-center a{
  position:relative;
  padding:9px 16px;border-radius:999px;
  color:var(--text-2);font-size:15px;white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-center a:hover{color:var(--text);background:rgba(53,214,245,.08)}
.nav-center a.is-active{color:var(--brand)}
.nav-center a.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:1px;width:22px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);color:var(--text-2);
  display:grid;place-items:center;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(53,214,245,.45);background:rgba(53,214,245,.08)}

.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-btn);
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  color:#04121A;font-weight:700;font-size:15px;
  box-shadow:var(--shadow-glow);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
  border:none;
}
.btn-glow:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 12px 34px rgba(53,214,245,.45);filter:brightness(1.06)}
.btn-glow:active{transform:translateY(1px)}

.btn-line{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-btn);
  border:1px solid rgba(53,214,245,.55);
  background:transparent;color:var(--brand);font-weight:600;font-size:15px;
  transition:background var(--ease),transform var(--ease),color var(--ease);
}
.btn-line:hover{background:rgba(53,214,245,.08);color:var(--brand);transform:translateY(-2px)}

.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);color:var(--text);
  place-items:center;font-size:17px;
}
.burger:hover{border-color:rgba(53,214,245,.45);color:var(--brand)}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:1090;
  background:rgba(3,6,12,.66);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:1100;
  width:86vw;max-width:380px;
  background:var(--bg-1);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform 240ms ease-out;
  display:flex;flex-direction:column;
  padding:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-top b{font-size:17px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  color:var(--text-2);display:grid;place-items:center;
}
.drawer nav{display:flex;flex-direction:column;gap:6px;flex:1}
.drawer nav a{
  min-height:48px;display:flex;align-items:center;padding:0 14px;
  border-radius:12px;color:var(--text-2);font-size:16px;
  border:1px solid transparent;
}
.drawer nav a:hover,.drawer nav a.is-active{
  color:var(--brand);background:rgba(53,214,245,.08);border-color:rgba(53,214,245,.22);
}
.drawer-foot{padding-top:16px;border-top:1px solid var(--line)}
.drawer-foot .btn-glow{width:100%;justify-content:center}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;
  padding:168px 0 92px;
  background:
    radial-gradient(760px 420px at 12% 6%,rgba(53,214,245,.10),transparent 62%),
    radial-gradient(620px 380px at 88% 22%,rgba(47,224,166,.08),transparent 60%),
    var(--bg-0);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  pointer-events:none;aria-hidden:true;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{opacity:.55}
.crumbs span.now{color:var(--text-2)}

.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;
  background:rgba(245,185,66,.14);border:1px solid rgba(245,185,66,.34);
  color:var(--gold);font-size:12.5px;letter-spacing:.04em;margin-bottom:22px;
}
.page-hero h1{font-size:52px;line-height:1.22;margin-bottom:20px}
.page-hero h1 .hl{
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-2);font-size:17px;max-width:620px;margin-bottom:32px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}

.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-radius:16px;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(8px);
}
.stat-cell{padding:20px 18px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:none}
.stat-num{
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
  font-size:26px;font-weight:900;letter-spacing:-.02em;color:var(--text);
  display:flex;align-items:baseline;gap:5px;
}
.stat-num small{font-size:12.5px;font-weight:500;color:var(--text-3);letter-spacing:0}
.stat-label{font-size:12.5px;color:var(--text-3);margin-top:4px}

.hero-figure{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;height:420px;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.05),rgba(6,10,18,.72));
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:3;
  display:flex;align-items:center;gap:10px;
  padding:11px 16px;border-radius:999px;
  background:rgba(6,10,18,.78);border:1px solid rgba(245,185,66,.4);
  color:var(--gold);font-size:13px;backdrop-filter:blur(8px);
}

/* ============ 保障条目卡 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guard-card{
  position:relative;
  padding:30px 26px 28px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  overflow:hidden;
}
.guard-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.6),transparent);
  opacity:0;transition:opacity var(--ease);
}
.guard-card:hover{transform:translateY(-4px);border-color:rgba(53,214,245,.42);box-shadow:var(--shadow-2)}
.guard-card:hover::before{opacity:1}
.guard-ico{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(53,214,245,.12);border:1px solid rgba(53,214,245,.26);
  color:var(--brand);font-size:19px;margin-bottom:18px;
}
.guard-card h3{font-size:20px;margin-bottom:10px}
.guard-card p{color:var(--text-2);font-size:15.5px;line-height:1.85}
.guard-num{
  position:absolute;right:22px;top:22px;
  font-variant-numeric:tabular-nums;font-size:38px;font-weight:900;
  color:rgba(120,180,255,.10);letter-spacing:-.03em;line-height:1;
}

/* ============ 流程四步 ============ */
.flow{position:relative}
.flow-line{
  position:absolute;top:30px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,rgba(53,214,245,.55),rgba(47,224,166,.4));
  opacity:.55;
}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:2}
.flow-step{
  padding:26px 22px;border-radius:var(--radius-card);
  background:linear-gradient(180deg,var(--bg-2),rgba(11,18,32,.9));
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform var(--ease),border-color var(--ease);
}
.flow-step:hover{transform:translateY(-4px);border-color:rgba(53,214,245,.4)}
.flow-node{
  width:60px;height:60px;border-radius:50%;display:grid;place-items:center;
  font-variant-numeric:tabular-nums;font-weight:900;font-size:19px;
  background:var(--bg-0);border:2px solid var(--brand);color:var(--brand);
  box-shadow:0 0 0 8px rgba(53,214,245,.08);margin-bottom:18px;
}
.flow-step h3{font-size:19px;margin-bottom:8px}
.flow-step p{color:var(--text-2);font-size:15px}
.flow-step .tag{margin-top:14px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;letter-spacing:.04em;
  background:rgba(53,214,245,.12);color:var(--brand);border:1px solid rgba(53,214,245,.24);
}
.tag--gold{background:rgba(245,185,66,.14);color:var(--gold);border-color:rgba(245,185,66,.3)}
.tag--mint{background:rgba(47,224,166,.13);color:var(--brand-2);border-color:rgba(47,224,166,.28)}

/* ============ 凭据区 ============ */
.proof{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:48px;border-radius:24px;
  background:linear-gradient(140deg,rgba(16,26,44,.9),rgba(11,18,32,.7));
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.proof h2{font-size:32px;margin-bottom:16px}
.proof p.lead{color:var(--text-2);margin-bottom:28px}
.badge-wall{display:flex;flex-wrap:wrap;gap:12px}
.badge-wall .tag{padding:9px 16px;font-size:13px}
.proof-figure{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.proof-figure img{width:100%;height:340px;object-fit:cover}
.proof-list{margin-top:26px;display:grid;gap:12px}
.proof-list li{display:flex;gap:10px;color:var(--text-2);font-size:15.5px}
.proof-list i{color:var(--brand-2);margin-top:6px;font-size:13px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;align-items:start}
.faq-item{
  border-radius:14px;border:1px solid var(--line);
  background:var(--glass);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(53,214,245,.34)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;color:var(--text);font-size:16.5px;font-weight:600;
  background:none;border:none;
}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;color:var(--brand);
  background:rgba(53,214,245,.1);transition:transform var(--ease);
}
.faq-q[aria-expanded="true"]{color:var(--brand)}
.faq-q[aria-expanded="true"] .plus{transform:rotate(45deg)}
.faq-item:has(.faq-q[aria-expanded="true"]){border-color:rgba(53,214,245,.45)}
.faq-a{padding:0 22px 22px 22px;color:var(--text-2);font-size:15.5px;position:relative}
.faq-a::before{
  content:"";position:absolute;left:0;top:0;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--brand),transparent);border-radius:2px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:24px;
  padding:56px 52px;
  background:linear-gradient(120deg,rgba(53,214,245,.16),rgba(47,224,166,.10)),var(--bg-1);
  border:1px solid rgba(53,214,245,.3);
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--shadow-1);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,214,245,.22),transparent 68%);
}
.cta-band h2{font-size:30px;margin-bottom:12px;position:relative;z-index:2}
.cta-band p{color:var(--text-2);max-width:640px;position:relative;z-index:2}
.cta-band .act{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:#05080F;
  padding:80px 0 0;
  margin-top:110px;
}
.site-footer .top-line{
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.6),transparent);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:420px;height:24px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,214,245,.30),transparent 70%);
  filter:blur(10px);pointer-events:none;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand b{font-size:17px}
.footer-col p{color:var(--text-3);font-size:14.5px;line-height:1.9}
.footer-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.footer-col h4{font-size:16px;margin-bottom:18px;color:var(--text)}
.footer-links{display:grid;gap:11px}
.footer-links a{color:var(--text-3);font-size:14.5px}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:grid;gap:13px}
.footer-contact li{display:flex;gap:10px;color:var(--text-3);font-size:14.5px;line-height:1.75}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  color:var(--text-3);font-size:13.5px;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{color:var(--text-3)}
.footer-bottom .links a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-center a{padding:9px 12px;font-size:14.5px}
  .page-hero h1{font-size:46px}
}
@media (max-width:1024px){
  .nav-center{display:none}
  .burger{display:grid}
  .header-actions .btn-glow{display:none}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-figure img{height:340px}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .flow-line{display:none}
  .proof{grid-template-columns:1fr;padding:36px;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .section-head h2{font-size:27px}
  .wrap{padding:0 16px}
  .page-hero{padding:132px 0 64px}
  .page-hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:none}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .guard-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 26px}
  .cta-band h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{padding-top:64px;margin-top:80px}
}
@media (max-width:520px){
  .page-hero h1{font-size:29px}
  .btn-glow,.btn-line{width:100%;justify-content:center}
  .hero-btns{gap:12px}
  .cta-band .act{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .guard-card:hover,.flow-step:hover,.btn-glow:hover,.btn-line:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101B2E;
  --brand:#35D6F5;
  --brand-2:#2FE0A6;
  --gold:#F5B942;
  --text-1:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --line:rgba(120,180,255,.14);
  --glass:rgba(16,26,44,.62);
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 10px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 44px rgba(0,0,0,.5);
  --sh-glow:0 8px 28px rgba(53,214,245,.32);
  --header-h:84px;
  --wrap:1240px;

  --bs-primary:#35D6F5;
  --bs-body-bg:#060A12;
  --bs-body-color:#EAF2FF;
  --bs-link-color:#35D6F5;
  --bs-link-hover-color:#2FE0A6;
  --bs-border-color:rgba(120,180,255,.14);
  --bs-border-radius:12px;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--header-h);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(720px 420px at 88% -6%, rgba(53,214,245,.08), transparent 70%),
    radial-gradient(640px 400px at -8% 12%, rgba(47,224,166,.06), transparent 72%),
    linear-gradient(rgba(120,180,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.04) 1px, transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out;}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.32;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;position:relative;}
.section--tight{padding:72px 0;}
.section-head{max-width:780px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--brand);letter-spacing:.08em;
  background:rgba(53,214,245,.12);
  border:1px solid rgba(53,214,245,.24);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-h);
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .22s ease-out,background-color .22s ease-out,border-color .22s ease-out,backdrop-filter .22s ease-out;
}
.site-header.is-scrolled{
  height:66px;
  background:rgba(6,10,18,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%;}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;color:var(--text-1);
  letter-spacing:-.01em;white-space:nowrap;
}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;font-size:15px;
  box-shadow:var(--sh-glow);
}
.brand-text-short{display:none;}

.nav-center{
  display:flex;align-items:center;gap:6px;
  margin-left:8px;
  padding:6px;
  border-radius:999px;
  background:rgba(16,26,44,.6);
  border:1px solid var(--line);
}
.nav-center a{
  position:relative;
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:999px;
  font-size:14.5px;color:var(--text-2);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-center a:hover{color:var(--text-1);background:rgba(53,214,245,.08);}
.nav-center a.is-active{color:var(--brand);background:rgba(53,214,245,.1);}
.nav-center a.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(53,214,245,.9);
}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(53,214,245,.42);transform:translateY(-2px);}
.btn-main,.btn-line,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:500;}
.btn-main{
  height:44px;padding:0 22px;border:0;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;font-size:15px;
  box-shadow:var(--sh-glow);
  transition:box-shadow .2s ease-out,transform .18s ease-out,filter .2s ease-out;
}
.btn-main:hover{color:#04121A;filter:brightness(1.07);box-shadow:0 12px 34px rgba(53,214,245,.46);transform:translateY(-2px);}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 18px rgba(53,214,245,.34);}
.btn-line{
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid rgba(53,214,245,.55);background:transparent;color:var(--brand);
  font-size:15px;transition:background-color .2s ease-out,transform .18s ease-out,color .2s ease-out;
}
.btn-line:hover{background:rgba(53,214,245,.1);color:var(--brand);transform:translateY(-2px);}
.btn-ghost{
  height:40px;padding:0 18px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:transparent;color:var(--text-2);font-size:14px;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.btn-ghost:hover{color:var(--brand);border-color:rgba(53,214,245,.42);}
.header-actions .btn-main{height:42px;padding:0 18px;font-size:14.5px;}

.burger{display:none;}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.7);
  opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s ease-out;z-index:1090;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:380px;z-index:1100;
  background:var(--bg-1);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .26s ease-out;
  display:flex;flex-direction:column;padding:20px 20px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-top b{font-size:15px;color:var(--text-1);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  height:48px;display:flex;align-items:center;padding:0 14px;border-radius:12px;
  color:var(--text-2);font-size:15.5px;border:1px solid transparent;
}
.drawer-nav a:hover{color:var(--text-1);background:rgba(53,214,245,.08);}
.drawer-nav a.is-active{color:var(--brand);background:rgba(53,214,245,.1);border-color:rgba(53,214,245,.24);}
.drawer-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:10px;}
body.no-scroll{overflow:hidden;}

/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;overflow:hidden;
  padding:64px 0 88px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(11,18,32,.2),rgba(6,10,18,.94)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 300px at 82% 22%, rgba(53,214,245,.14), transparent 70%);
  pointer-events:none;
}
.cat-hero .wrap{position:relative;z-index:1;}
.breadcrumb-nav{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);margin-bottom:26px;
}
.breadcrumb-nav a{color:var(--text-2);}
.breadcrumb-nav a:hover{color:var(--brand);}
.breadcrumb-nav i{font-size:10px;opacity:.7;}
.cat-hero h1{
  font-size:clamp(30px,4vw,54px);
  line-height:1.22;
  margin:16px 0 18px;
  max-width:900px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.cat-hero .lead{color:var(--text-2);font-size:17px;max-width:720px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.cat-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  max-width:900px;
}
.stat-cell{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 18px 16px;
  position:relative;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.stat-cell b{
  display:block;
  font-family:"SFMono-Regular",Consolas,"Roboto Mono",monospace;
  font-variant-numeric:tabular-nums;
  font-size:28px;line-height:1.1;color:var(--text-1);letter-spacing:-.02em;
}
.stat-cell b span{font-size:14px;color:var(--brand-2);margin-left:4px;font-family:var(--bs-font-sans-serif);font-weight:500;}
.stat-cell p{font-size:13px;color:var(--text-3);margin-top:6px;}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  letter-spacing:.04em;line-height:1.5;
  background:rgba(53,214,245,.12);
  border:1px solid rgba(53,214,245,.24);
  color:var(--brand);
}
.tag--gold{background:rgba(245,185,66,.14);border-color:rgba(245,185,66,.3);color:var(--gold);}
.tag--mint{background:rgba(47,224,166,.12);border-color:rgba(47,224,166,.28);color:var(--brand-2);}
.tag--plain{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text-2);}

/* ============ 频道选项 ============ */
.channel-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:10px;border-radius:999px;
  background:rgba(16,26,44,.6);
  border:1px solid var(--line);
  width:fit-content;max-width:100%;
  margin-bottom:40px;
}
.channel-btn{
  height:40px;padding:0 20px;border-radius:999px;border:1px solid transparent;
  background:transparent;color:var(--text-2);font-size:14.5px;cursor:pointer;
  transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.channel-btn:hover{color:var(--text-1);background:rgba(53,214,245,.08);}
.channel-btn.is-active{
  color:var(--brand);background:rgba(53,214,245,.12);border-color:rgba(53,214,245,.34);
}

/* ============ 内容卡片网格 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.media-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  height:100%;
}
.media-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,214,245,.4);
  box-shadow:var(--sh-2),0 0 0 1px rgba(53,214,245,.18);
}
.media-card .thumb{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:var(--bg-2);
}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.media-card:hover .thumb img{transform:scale(1.05);}
.media-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 40%,rgba(6,10,18,.72));
}
.media-card .thumb .tag{position:absolute;left:14px;top:14px;z-index:2;}
.media-card .body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.media-card h3{font-size:19px;line-height:1.45;}
.media-card p{color:var(--text-2);font-size:14.5px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.media-card .more{
  margin-top:auto;padding-top:8px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--brand);
}
.media-card:hover .more i{transform:translateX(4px);}
.media-card .more i{transition:transform .2s ease-out;}
.empty-tip{
  display:none;text-align:center;padding:56px 20px;
  border:1px dashed var(--line);border-radius:var(--r-card);color:var(--text-3);
}
.empty-tip i{font-size:26px;color:var(--text-3);display:block;margin-bottom:12px;}

/* ============ 排行 / 查阅较多 ============ */
.split{display:grid;grid-template-columns:1.25fr .85fr;gap:32px;align-items:start;}
.rank-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:12px;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:16px 14px;border-radius:14px;
  transition:background-color .18s ease-out;
}
.rank-item + .rank-item{border-top:1px solid var(--line);}
.rank-item:hover{background:rgba(53,214,245,.06);}
.rank-no{
  font-family:"SFMono-Regular",Consolas,"Roboto Mono",monospace;
  font-variant-numeric:tabular-nums;
  font-size:22px;color:var(--text-3);width:44px;flex:0 0 44px;letter-spacing:-.02em;
}
.rank-item:nth-child(1) .rank-no{color:var(--gold);}
.rank-item:nth-child(2) .rank-no{color:var(--brand);}
.rank-item:nth-child(3) .rank-no{color:var(--brand-2);}
.rank-main{flex:1;min-width:0;}
.rank-main h4{font-size:16px;margin-bottom:4px;}
.rank-main span{font-size:13px;color:var(--text-3);}
.rank-item .go{color:var(--text-3);}
.rank-item:hover .go{color:var(--brand);}
.side-note{
  background:linear-gradient(160deg,rgba(16,26,44,.9),rgba(11,18,32,.75));
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.side-note h3{font-size:20px;margin-bottom:14px;}
.side-note p{color:var(--text-2);font-size:15px;margin-bottom:18px;}
.note-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.note-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);align-items:flex-start;}
.note-list i{color:var(--brand-2);margin-top:6px;font-size:12px;}

/* ============ 折叠面板 ============ */
.accordion{
  --bs-accordion-bg:var(--glass);
  --bs-accordion-color:var(--text-1);
  --bs-accordion-border-color:var(--line);
  --bs-accordion-border-radius:14px;
  --bs-accordion-inner-border-radius:14px;
  --bs-accordion-btn-color:var(--text-1);
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-active-color:var(--brand);
  --bs-accordion-active-bg:rgba(53,214,245,.08);
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-transition:background-color .2s ease-out,color .2s ease-out;
}
.accordion-item{
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.accordion-button{
  font-size:16px;font-weight:500;padding:18px 20px;line-height:1.6;
}
.accordion-button:not(.collapsed){box-shadow:inset 3px 0 0 var(--brand);}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2335D6F5'%3E%3Cpath d='M8 1.5v13M1.5 8h13' stroke='%2335D6F5' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  transition:transform .22s ease-out;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{color:var(--text-2);font-size:15px;line-height:1.9;padding:0 20px 20px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(16,26,44,.94),rgba(8,14,24,.96)),
             url('/assets/images/backpic/back-3.png') right center/cover no-repeat;
  border:1px solid var(--line);
  border-radius:24px;
  padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 220px at 92% 20%, rgba(53,214,245,.16), transparent 70%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:660px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:96px;
  background:#05080F;
  padding:72px 0 0;
}
.site-footer .top-line{
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.6),transparent);
  box-shadow:0 0 24px 4px rgba(53,214,245,.28);
  display:block;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:15.5px;}
.footer-brand b{color:var(--text-1);}
.footer-col p{color:var(--text-3);font-size:14px;line-height:1.9;margin-bottom:18px;}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:18px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:var(--text-3);font-size:14.5px;}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:14px;}
.footer-contact li{display:flex;gap:10px;color:var(--text-3);font-size:14px;line-height:1.8;}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  color:var(--text-3);font-size:13.5px;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:var(--text-3);}
.footer-bottom .links a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-center a{padding:0 12px;font-size:14px;}
  .card-grid{gap:20px;}
}
@media (max-width:1080px){
  .nav-center{display:none;}
  .burger{display:inline-flex;}
  .header-actions .btn-main{display:none;}
}
@media (max-width:992px){
  .section{padding:80px 0;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;}
  .cat-stats{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .brand .brand-text-full{display:none;}
  .brand-text-short{display:inline;}
  .wrap{padding:0 16px;}
  .section{padding:64px 0;}
  .cat-hero{padding:40px 0 64px;}
  .cat-hero .lead{font-size:15.5px;}
  .channel-bar{border-radius:18px;width:100%;}
  .channel-btn{flex:1 1 auto;padding:0 14px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  .card-grid{grid-template-columns:1fr;}
  .cat-stats{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-cell b{font-size:24px;}
  .hero-cta{gap:10px;}
  .btn-main,.btn-line{width:100%;}
  .rank-no{width:34px;flex:0 0 34px;font-size:19px;}
  .accordion-button{font-size:15px;padding:16px;}
  .cta-band{padding:32px 22px;border-radius:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101B2E;
  --brand:#35D6F5;
  --brand-2:#2FE0A6;
  --gold:#F5B942;
  --text:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6B7C96;
  --line:rgba(120,180,255,.14);
  --glass:rgba(16,26,44,.62);
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 10px 30px rgba(0,0,0,.35);
  --sh-2:0 18px 44px rgba(0,0,0,.5);
  --sh-glow:0 8px 28px rgba(53,214,245,.32);
  --wrap:1240px;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-primary:#35D6F5;
  --bs-primary-rgb:53,214,245;
  --bs-body-bg:#060A12;
  --bs-body-color:#EAF2FF;
  --bs-link-color:#35D6F5;
  --bs-link-hover-color:#2FE0A6;
  --bs-border-color:rgba(120,180,255,.14);
  --bs-border-radius:12px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-body-font-family:var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(120,180,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.035) 1px,transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4,h5{margin:0;color:var(--text);line-height:1.35;font-weight:700;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:-.02em;}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.section{padding:104px 0;position:relative;z-index:1;}
.section--tight{padding:72px 0;}
.section--alt{background:linear-gradient(180deg,rgba(11,18,32,.85),rgba(6,10,18,.4));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--brand);text-transform:uppercase;margin-bottom:16px;}
.section-head h2{font-size:34px;margin-bottom:16px;}
.section-head p{color:var(--text-2);font-size:16.5px;margin:0;}
.hl{color:var(--brand);}
.hl-gold{color:var(--gold);}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-line,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:600;font-size:15.5px;line-height:1;padding:15px 26px;border-radius:var(--r-btn);transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;white-space:nowrap;}
.btn-glow{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#04121A;box-shadow:var(--sh-glow);}
.btn-glow:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 12px 34px rgba(53,214,245,.45);}
.btn-glow:active{transform:translateY(1px);}
.btn-line{border:1px solid rgba(53,214,245,.55);color:var(--brand);background:transparent;}
.btn-line:hover{background:rgba(53,214,245,.08);color:var(--brand);border-color:var(--brand);}
.btn-ghost{border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);}
.btn-ghost:hover{color:var(--text);border-color:rgba(53,214,245,.45);background:rgba(53,214,245,.06);}
.btn-sm{padding:12px 20px;font-size:14.5px;}

/* ---------- 标签 / 徽章 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.05em;background:rgba(53,214,245,.12);color:var(--brand);border:1px solid rgba(53,214,245,.22);}
.chip--gold{background:rgba(245,185,66,.14);color:var(--gold);border-color:rgba(245,185,66,.28);}
.chip--mint{background:rgba(47,224,166,.12);color:var(--brand-2);border-color:rgba(47,224,166,.26);}
.chip--plain{background:rgba(255,255,255,.05);color:var(--text-2);border-color:var(--line);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:84px;
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .24s ease-out,background .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
}
.site-header.is-scrolled{
  height:66px;
  background:rgba(6,10,18,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(53,214,245,.22),rgba(47,224,166,.16));
  border:1px solid rgba(53,214,245,.35);
  color:var(--brand);font-size:17px;
  box-shadow:0 0 20px rgba(53,214,245,.22) inset;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:17px;color:var(--text);letter-spacing:.02em;}
.brand-text .brand-sub{font-size:11.5px;font-weight:500;color:var(--text-3);letter-spacing:.08em;}
.nav-center{
  display:flex;align-items:center;gap:6px;
  margin:0 auto;
  padding:6px;
  border-radius:var(--r-pill);
  background:rgba(16,26,44,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.nav-center a{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);font-weight:500;
  transition:color .18s ease-out,background .18s ease-out;
  white-space:nowrap;
}
.nav-center a:hover{color:var(--text);background:rgba(53,214,245,.08);}
.nav-center a.is-active{color:var(--brand);background:rgba(53,214,245,.1);}
.nav-center a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 10px rgba(53,214,245,.9);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:color .18s,border-color .18s,background .18s;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(53,214,245,.5);background:rgba(53,214,245,.08);}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.02);position:relative;}
.burger span{position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease-out,opacity .22s ease-out;}
.burger span:nth-child(1){top:15px;}
.burger span:nth-child(2){top:21px;}
.burger span:nth-child(3){top:27px;}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer-backdrop{position:fixed;inset:0;background:rgba(4,8,14,.65);backdrop-filter:blur(3px);z-index:70;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:380px;z-index:80;
  background:linear-gradient(180deg,#0B1220,#060A12);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s ease-out;
  display:flex;flex-direction:column;padding:20px 20px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:12px;}
.drawer-head b{font-size:15.5px;}
.drawer nav{display:flex;flex-direction:column;gap:4px;}
.drawer nav a{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;color:var(--text-2);font-size:15.5px;font-weight:500;}
.drawer nav a:hover{background:rgba(53,214,245,.08);color:var(--text);}
.drawer nav a.is-active{color:var(--brand);background:rgba(53,214,245,.1);}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.drawer-foot .btn-glow{width:100%;}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:var(--text-3);opacity:.6;}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;
  padding:164px 0 88px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(100deg,rgba(6,10,18,.96) 0%,rgba(6,10,18,.86) 46%,rgba(6,10,18,.62) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center right;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,214,245,.16),transparent 66%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;z-index:2;}
.page-hero h1{font-size:50px;line-height:1.2;margin-bottom:20px;letter-spacing:-.01em;}
.page-hero .lead{font-size:18px;color:var(--text-2);max-width:600px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;}
.hero-visual{position:relative;}
.hero-visual img{border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-2);}
.hero-visual::before{
  content:"";position:absolute;inset:-14px;border-radius:22px;
  border:1px solid rgba(53,214,245,.18);pointer-events:none;
}
.hero-stat{
  position:absolute;left:-24px;bottom:26px;
  background:rgba(9,15,26,.9);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 20px;
  box-shadow:var(--sh-1);
  backdrop-filter:blur(10px);
}
.hero-stat b{display:block;font-size:26px;color:var(--brand);line-height:1.1;}
.hero-stat small{color:var(--text-3);font-size:12.5px;letter-spacing:.06em;}

/* ---------- 服务渠道卡 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.glass-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 28px;
  box-shadow:var(--sh-1);
  backdrop-filter:blur(10px);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.55),transparent);
}
.glass-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(53,214,245,.42);}
.channel-icon{
  width:54px;height:54px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(53,214,245,.2),rgba(47,224,166,.12));
  border:1px solid rgba(53,214,245,.3);color:var(--brand);font-size:21px;margin-bottom:20px;
}
.glass-card h3{font-size:21px;margin-bottom:10px;}
.glass-card p{color:var(--text-2);font-size:15.5px;margin-bottom:18px;}
.plain-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;}
.plain-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7;}
.plain-list li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand);margin-top:9px;flex-shrink:0;}

/* ---------- 承诺条 ---------- */
.promise-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.promise-bar > div{
  background:linear-gradient(180deg,rgba(16,26,44,.9),rgba(11,18,32,.9));
  padding:26px 24px;
}
.promise-bar b{display:block;font-size:28px;color:var(--brand);line-height:1.1;margin-bottom:6px;}
.promise-bar span{font-size:14px;color:var(--text-2);}

/* ---------- 步骤 ---------- */
.step-line{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:12px;}
.step-card{position:relative;padding:26px 22px 24px;border-radius:var(--r-card);border:1px solid var(--line);background:rgba(12,20,34,.55);}
.step-card .idx{font-size:30px;font-weight:800;color:rgba(53,214,245,.35);line-height:1;margin-bottom:14px;}
.step-card h4{font-size:17px;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--text-2);margin:0;}
.step-card::after{content:"";position:absolute;right:-18px;top:44px;width:12px;height:2px;background:rgba(53,214,245,.4);}
.step-card:last-child::after{display:none;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;align-items:start;}
.faq-col{display:flex;flex-direction:column;gap:12px;}
details.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(12,20,34,.6);
  overflow:hidden;
  transition:border-color .2s ease-out,background .2s ease-out;
}
details.faq-item[open]{border-color:rgba(53,214,245,.42);background:rgba(16,26,44,.8);}
details.faq-item summary{
  position:relative;
  list-style:none;cursor:pointer;
  padding:18px 52px 18px 20px;
  font-size:16px;font-weight:600;color:var(--text);
  line-height:1.6;
}
details.faq-item summary::-webkit-details-marker{display:none;}
details.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);transition:transform .22s ease-out;
}
details.faq-item[open] summary{color:var(--brand);}
details.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
details.faq-item[open] summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;background:var(--brand);box-shadow:0 0 10px rgba(53,214,245,.8);}
.faq-body{padding:0 22px 20px 20px;color:var(--text-2);font-size:15.5px;line-height:1.85;}

/* ---------- 表单 ---------- */
.form-panel{
  background:linear-gradient(160deg,rgba(16,26,44,.92),rgba(9,15,26,.92));
  border:1px solid var(--line);
  border-radius:22px;
  padding:40px;
  box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;color:var(--text-2);font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(120,180,255,.18);
  border-radius:var(--r-btn);
  padding:13px 15px;
  font-size:15px;
  color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:rgba(53,214,245,.06);
  box-shadow:0 0 0 4px rgba(53,214,245,.16);
}
.field select option{background:#0B1220;color:var(--text);}
.field textarea{min-height:132px;resize:vertical;}
.form-note{font-size:13.5px;color:var(--text-3);margin-top:16px;}
.form-feedback{margin-top:18px;font-size:14.5px;color:var(--brand-2);min-height:22px;}
.form-feedback.is-error{color:#FF8A6B;}

/* ---------- 资料侧栏 ---------- */
.support-aside{display:flex;flex-direction:column;gap:16px;}
.aside-card{border:1px solid var(--line);border-radius:var(--r-card);background:rgba(12,20,34,.7);padding:24px;}
.aside-card h4{font-size:17px;margin-bottom:12px;}
.aside-card p{font-size:14.5px;color:var(--text-2);margin-bottom:0;}
.aside-list{display:flex;flex-direction:column;gap:12px;}
.aside-list a{display:flex;justify-content:space-between;gap:10px;font-size:14.5px;color:var(--text-2);}
.aside-list a:hover{color:var(--brand);}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid rgba(53,214,245,.28);
  border-radius:24px;
  padding:44px 48px;
  background:linear-gradient(115deg,rgba(53,214,245,.14),rgba(47,224,166,.07) 55%,rgba(16,26,44,.9));
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-1);
}
.cta-band h2{font-size:30px;margin-bottom:8px;}
.cta-band p{color:var(--text-2);margin:0;font-size:16px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:40px;
  background:#05080F;
  padding:74px 0 30px;
  z-index:1;
}
.site-footer .top-line{
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,245,.55),transparent);
}
.site-footer::before{
  content:"";position:absolute;left:50%;top:-10px;transform:translateX(-50%);
  width:420px;height:24px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(53,214,245,.28),transparent 70%);
  pointer-events:none;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand b{font-size:16.5px;line-height:1.4;}
.footer-col p{color:var(--text-3);font-size:14.5px;line-height:1.85;}
.footer-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:var(--text-2);font-size:14.5px;}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:14px;}
.footer-contact li{display:flex;gap:11px;font-size:14.5px;color:var(--text-3);line-height:1.7;}
.footer-contact i{color:var(--brand);margin-top:5px;flex-shrink:0;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:var(--text-3);}
.footer-bottom .links a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .page-hero h1{font-size:44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:992px){
  .nav-center{display:none;}
  .burger{display:block;}
  .section{padding:80px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:140px 0 72px;background-image:linear-gradient(180deg,rgba(6,10,18,.96),rgba(6,10,18,.86)),url("/assets/images/backpic/back-2.png");}
  .page-hero h1{font-size:36px;}
  .page-hero .lead{font-size:17px;}
  .hero-stat{left:16px;bottom:-16px;padding:14px 18px;}
  .channel-grid{grid-template-columns:1fr;gap:20px;}
  .step-line{grid-template-columns:1fr 1fr;gap:20px;}
  .step-card::after{display:none;}
  .faq-grid{grid-template-columns:1fr;}
  .promise-bar{grid-template-columns:1fr 1fr;}
  .form-panel{padding:28px 22px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;}
  .cta-band h2{font-size:25px;}
}
@media (max-width:576px){
  body{font-size:16px;}
  .wrap{padding:0 16px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:36px;}
  .section-head h2{font-size:26px;}
  .page-hero{padding:124px 0 60px;}
  .page-hero h1{font-size:29px;}
  .brand-text{font-size:15px;}
  .brand-text .brand-sub{font-size:10.5px;}
  .header-actions .btn-glow{display:none;}
  .promise-bar b{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn-glow,.btn-line,.btn-ghost{padding:14px 22px;font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .glass-card:hover{transform:none;}
  .btn-glow:hover{transform:none;}
}