/* roulang page: index */
:root{
  --bg-0:#0A1018;
  --bg-1:#0E1622;
  --bg-2:#131E2D;
  --brand:#2FD4C6;
  --brand-deep:#17A79B;
  --accent:#F0A34B;
  --text-1:#EAF2F8;
  --text-2:#A7B6C6;
  --text-3:#6C7C8E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --r-card:14px;
  --r-big:18px;
  --r-btn:10px;
  --sh-card:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 16px 40px rgba(0,0,0,.5);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(47,212,198,.3)}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:#22303f;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:#2c3d4f}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1440px){.container{max-width:1280px;padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:14px;font-weight:600;line-height:1.2;
  padding:13px 24px;border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#06211F;
  box-shadow:0 0 24px rgba(47,212,198,.32);
}
.btn-primary:hover{box-shadow:0 0 34px rgba(47,212,198,.45);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(47,212,198,.06)}
.btn-sm{padding:9px 18px;font-size:13px}

/* ---------- 玻璃卡 ---------- */
.glass-card{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-big);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--sh-card);
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,16,24,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t);
}
.site-header.is-scrolled{background:rgba(10,16,24,.94);border-bottom-color:var(--line)}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.nav-left{display:flex;align-items:center;gap:26px}
.nav-right{display:flex;align-items:center;gap:20px}
.nav-link{position:relative;font-size:14px;color:var(--text-2);padding:8px 0;transition:color var(--t);white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--brand);transform:translateX(-50%);transition:width var(--t);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.is-active::after{width:16px}
.nav-link.is-active{color:var(--text-1)}
.brand{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.5px;
}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  border:1px solid var(--line-strong);
  background:rgba(47,212,198,.08);
  display:grid;place-items:center;
}
.brand-mark svg{width:20px;height:20px;display:block}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-strong);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:1.5px;background:var(--text-1);transition:transform var(--t),opacity var(--t)}
.menu-toggle.is-open span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}
.mobile-panel{
  position:fixed;inset:68px 0 0 0;z-index:110;
  background:var(--bg-1);
  padding:24px 20px 32px;
  display:none;flex-direction:column;gap:4px;
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex}
.mobile-panel a{
  font-size:16px;color:var(--text-1);padding:16px 4px;
  border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--brand)}
.mobile-panel .btn{margin-top:22px;width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:80px 0 92px;
  background:
    linear-gradient(180deg,rgba(10,16,24,.94) 0%,rgba(14,22,34,.97) 60%,rgba(19,30,45,.99) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 72% 18%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 72% 18%,#000 0%,transparent 72%);
}
.hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:520px;height:320px;pointer-events:none;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 520 320'%3E%3Cpath d='M10 230 L110 230 L140 180 L200 180 L230 130 L300 130 L330 80 L400 80 L430 30 L510 30' fill='none' stroke='%232FD4C6' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round' opacity='0.06'/%3E%3C/svg%3E") center/contain no-repeat;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.5px;color:var(--brand);
  border:1px solid rgba(47,212,198,.3);background:rgba(47,212,198,.1);
  border-radius:999px;padding:5px 14px;
}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:700;line-height:1.25;letter-spacing:-.5px;
  margin-top:22px;
}
.hero-sub{font-size:16px;color:var(--text-2);margin-top:20px;max-width:560px;line-height:1.85}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-stats{display:flex;margin-top:38px;flex-wrap:wrap}
.hero-stats li{padding:0 24px;border-left:1px solid var(--line)}
.hero-stats li:first-child{padding-left:0;border-left:0}
.hero-stats strong{display:block;font-size:22px;font-weight:700;color:var(--accent);line-height:1.35}
.hero-stats span{font-size:12.5px;color:var(--text-3)}
.hero-card{position:relative;padding:14px}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;background:var(--bg-2)}
.hero-float{
  position:absolute;right:-16px;bottom:28px;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:12px;
  background:rgba(19,30,45,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);
  box-shadow:var(--sh-card);
}
.hero-float .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);flex:0 0 auto}
.hero-float strong{display:block;font-size:14px;line-height:1.4}
.hero-float small{font-size:12px;color:var(--text-3)}

/* ---------- 信任条 ---------- */
.trust{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:20px 20px;text-align:center;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0}
.trust-item strong{display:block;font-size:15px;font-weight:600;color:var(--text-1)}
.trust-item span{font-size:12.5px;color:var(--text-3)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-kicker{display:block;font-size:12px;letter-spacing:.5px;color:var(--brand);margin-bottom:10px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
.section-head p{font-size:14px;color:var(--text-2);margin-top:10px;max-width:560px}
.link-more{font-size:14px;color:var(--brand);white-space:nowrap;transition:opacity var(--t)}
.link-more:hover{opacity:.75}

/* ---------- 卖点错落三连 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.feature-main{grid-column:span 6;overflow:hidden;display:flex;flex-direction:column}
.feature-main .fm-media{position:relative;overflow:hidden}
.feature-main .fm-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--bg-2)}
.feature-main .fm-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(14,22,34,.85) 100%);
}
.feature-main .fm-body{padding:26px 28px 30px}
.feature-main h3{font-size:22px;font-weight:600}
.feature-main p{font-size:14px;color:var(--text-2);margin-top:12px}
.feature-side{grid-column:span 3;padding:28px 24px;display:flex;flex-direction:column;gap:12px;transition:transform var(--t),box-shadow var(--t),background var(--t)}
.feature-side:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);background:rgba(255,255,255,.06)}
.feature-side .icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;border:1px solid rgba(47,212,198,.35);background:rgba(47,212,198,.08);color:var(--brand)}
.feature-side h3{font-size:17px;font-weight:600}
.feature-side p{font-size:13.5px;color:var(--text-2);line-height:1.8}

/* ---------- 场景演示 ---------- */
.scene-wrap{display:grid;grid-template-columns:260px 1fr;gap:32px;align-items:start}
.scene-tabs{display:flex;flex-direction:column;gap:8px}
.scene-tab{
  text-align:left;padding:16px 18px;border-radius:12px;
  border:1px solid transparent;border-left:2px solid transparent;
  color:var(--text-2);font-size:14px;transition:all var(--t);
}
.scene-tab:hover{color:var(--text-1);background:rgba(255,255,255,.03)}
.scene-tab.is-active{
  background:var(--glass);border-color:var(--line);border-left-color:var(--brand);
  color:var(--text-1);backdrop-filter:blur(18px);
}
.scene-panel{padding:22px;display:none}
.scene-panel.is-active{display:block;animation:fadeUp 220ms ease-out}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.scene-panel img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;background:var(--bg-2)}
.scene-steps{margin-top:22px;display:grid;gap:14px}
.scene-steps li{display:flex;gap:14px;align-items:flex-start}
.scene-steps .num{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;
  color:var(--brand);border:1px solid rgba(47,212,198,.35);background:rgba(47,212,198,.08);
}
.scene-steps strong{display:block;font-size:14.5px;font-weight:600}
.scene-steps span{font-size:13.5px;color:var(--text-2);line-height:1.8}

/* ---------- 最新信息 ---------- */
.news-list{display:grid;gap:0}
.news-lead{display:flex;gap:0;overflow:hidden;margin-bottom:12px}
.news-lead-media{flex:0 0 46%;overflow:hidden}
.news-lead-media img{width:100%;height:100%;min-height:250px;object-fit:cover;background:var(--bg-2)}
.news-lead-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center;gap:12px}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.5px;
  color:var(--brand);background:rgba(47,212,198,.12);
  border:1px solid rgba(47,212,198,.3);
  border-radius:999px;padding:3px 12px;white-space:nowrap;
}
.meta-time{font-size:12.5px;color:var(--text-3)}
.news-lead h3{font-size:20px;font-weight:600;line-height:1.5}
.news-lead h3 a{transition:color var(--t)}
.news-lead h3 a:hover{color:var(--brand)}
.news-lead p{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{font-size:13.5px;color:var(--brand);margin-top:4px;transition:opacity var(--t)}
.news-more:hover{opacity:.75}
.news-row{border-top:1px solid var(--line)}
.news-row:last-child{border-bottom:1px solid var(--line)}
.news-row-link{
  position:relative;display:flex;align-items:center;gap:18px;
  padding:18px 12px;transition:background var(--t),border-radius var(--t);
}
.news-row-link::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--brand);opacity:0;transition:opacity var(--t);
}
.news-row-link:hover{background:rgba(255,255,255,.06);border-radius:10px}
.news-row-link:hover::before{opacity:1}
.news-row-title{
  flex:0 0 auto;max-width:340px;font-size:15px;font-weight:600;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-row-sum{
  flex:1 1 auto;min-width:0;font-size:13.5px;color:var(--text-3);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-row-time{flex:0 0 auto;font-size:12.5px;color:var(--text-3)}
.news-row-arrow{flex:0 0 auto;color:var(--text-3);transition:transform var(--t),color var(--t)}
.news-row-link:hover .news-row-arrow{transform:translateX(3px);color:var(--brand)}
.news-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:40px 20px;
}
.news-empty-icon{font-size:26px;color:var(--brand);opacity:.7}
.news-empty p{font-size:14px;color:var(--text-2)}

/* ---------- 社会认同 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.voice-card{padding:32px 30px;display:flex;flex-direction:column;gap:16px}
.voice-card:nth-child(2){transform:translateY(28px)}
.voice-rate{font-size:13px;letter-spacing:3px;color:var(--accent)}
.voice-card blockquote{font-size:14px;color:var(--text-2);line-height:1.9}
.voice-card figcaption{font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);padding-top:14px}
.voice-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:70px;padding-top:40px;border-top:1px solid var(--line)}
.voice-stats div{text-align:center}
.voice-stats strong{display:block;font-size:26px;font-weight:700;color:var(--brand);line-height:1.3}
.voice-stats span{font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:320px 1fr;gap:44px;align-items:start}
.faq-side h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
.faq-side p{font-size:14px;color:var(--text-2);margin-top:14px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border-radius:var(--r-card);overflow:hidden;transition:border-color var(--t),background var(--t)}
.faq-item.is-open{border-color:rgba(47,212,198,.32);background:rgba(255,255,255,.055)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:19px 22px;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q .sign{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  color:var(--brand);transition:transform var(--t);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:14px;height:1.6px}
.faq-q .sign::after{width:1.6px;height:14px;transition:transform var(--t)}
.faq-item.is-open .sign::after{transform:translate(-50%,-50%) rotate(90deg) scaleX(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 22px;font-size:14px;color:var(--text-2);line-height:1.85}

/* ---------- 底部 CTA ---------- */
.cta-section{padding:0 0 96px}
.cta-card{
  position:relative;overflow:hidden;
  padding:56px 48px;text-align:center;
  background:
    linear-gradient(180deg,rgba(19,30,45,.9),rgba(14,22,34,.9)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4;max-width:720px;margin:0 auto}
.cta-card p{font-size:14.5px;color:var(--text-2);margin-top:16px;max-width:640px;margin-left:auto;margin-right:auto}
.cta-card .btn{margin-top:30px}
.cta-form{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px;max-width:840px;margin-left:auto;margin-right:auto;text-align:left}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:12.5px;color:var(--text-3)}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-strong);
  color:var(--text-1);font-size:14px;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{resize:vertical;min-height:44px}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,212,198,.15);
}
.cta-form .btn{display:block;width:100%;flex:0 0 auto;height:100%;min-height:44px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,212,198,.35),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{position:static;transform:none;display:inline-flex;margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.9;max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--text-3);transition:color var(--t)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}

/* ---------- 移动端固定转化条 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:130;
  display:none;align-items:center;justify-content:space-between;gap:14px;
  height:60px;padding:0 16px;
  background:rgba(14,22,34,.9);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(100%);
  transition:transform 220ms ease-out;
}
.mobile-bar.is-visible{transform:translateY(0)}
.mobile-bar span{font-size:13px;color:var(--text-2)}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .nav-left,.nav-right{display:none}
  .menu-toggle{display:flex}
  .brand{position:static;transform:none}
  .header-inner{justify-content:space-between}
  .brand-mark{width:28px;height:28px;border-radius:8px}
  .brand-mark svg{width:17px;height:17px}
  .hero{padding:60px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-float{right:12px;bottom:16px}
  .feature-main{grid-column:span 12}
  .feature-side{grid-column:span 6}
  .scene-wrap{grid-template-columns:1fr;gap:24px}
  .scene-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px}
  .scene-tab{flex:0 0 auto;border-left:2px solid transparent;border-bottom:2px solid transparent;white-space:nowrap}
  .scene-tab.is-active{border-left-color:var(--line);border-bottom-color:var(--brand)}
  .faq-wrap{grid-template-columns:1fr;gap:26px}
  .voice-card:nth-child(2){transform:none}
  .voice-stats{margin-top:44px}
  .section{padding:64px 0}
  .cta-section{padding-bottom:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:767px){
  body{padding-bottom:72px}
  .container{padding:0 16px}
  .hero{padding:44px 0 56px}
  .hero h1{font-size:clamp(28px,7.6vw,36px)}
  .hero-stats li{padding:0 16px}
  .hero-stats strong{font-size:19px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .feature-side{grid-column:span 12}
  .trust-inner{grid-template-columns:1fr 1fr}
  .trust-item{border-left:0;border-top:1px solid var(--line)}
  .trust-item:nth-child(-n+2){border-top:0}
  .trust-item:nth-child(even){border-left:1px solid var(--line)}
  .news-lead{flex-direction:column}
  .news-lead-media img{min-height:180px;aspect-ratio:16/10}
  .news-lead-body{padding:22px}
  .news-row-link{flex-wrap:wrap;gap:8px 12px;padding:16px 10px}
  .news-row-title{max-width:100%;width:100%;white-space:normal}
  .news-row-sum{display:none}
  .news-row-arrow{display:none}
  .voice-grid{grid-template-columns:1fr;gap:18px}
  .voice-stats{grid-template-columns:1fr;gap:22px;margin-top:32px;padding-top:28px}
  .cta-card{padding:36px 22px}
  .cta-form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:36px}
  .mobile-bar{display:flex}
  .mobile-bar .btn{padding:10px 18px;font-size:13px}
}
@media(max-width:480px){
  .glass-card,.news-lead,.voice-card,.faq-item{border-radius:12px}
  .hero-actions .btn{width:100%}
  .hero-stats li{padding:0 12px}
  .scene-tab{font-size:13px;padding:12px 14px}
  .news-lead h3{font-size:18px}
}

/* roulang page: article */
:root{
  --bg-0:#0A1018;
  --bg-1:#0E1622;
  --bg-2:#131E2D;
  --brand:#2FD4C6;
  --brand-deep:#17A79B;
  --accent:#F0A34B;
  --text-1:#EAF2F8;
  --text-2:#A7B6C6;
  --text-3:#6C7C8E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --glass-hover:rgba(255,255,255,.06);
  --r-card:14px;
  --r-lg:18px;
  --r-btn:10px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 16px 40px rgba(0,0,0,.5);
  --t:180ms ease-out;
  --wide:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 46%,var(--bg-0) 100%);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:var(--brand);text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:var(--brand);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.4px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(47,212,198,.3);color:#fff;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:rgba(47,212,198,.4);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--wide);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1440px){
  .container{max-width:1280px;padding:0 32px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:all var(--t);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#06211F;
  box-shadow:0 0 24px rgba(47,212,198,.32);
}
.btn-primary:hover{
  color:#06211F;
  transform:translateY(-1px);
  box-shadow:0 0 32px rgba(47,212,198,.45);
}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-ghost:hover{
  border-color:var(--brand);
  background:rgba(47,212,198,.06);
  color:var(--text-1);
  transform:translateY(-1px);
}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.5px;
  color:var(--brand);
  background:rgba(47,212,198,.12);
  border:1px solid rgba(47,212,198,.3);
  white-space:nowrap;
}
.tag-accent{
  color:var(--accent);
  background:rgba(240,163,75,.12);
  border-color:rgba(240,163,75,.3);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(10,16,24,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t);
}
.site-header.is-scrolled{
  background:rgba(10,16,24,.88);
  border-bottom-color:var(--line);
}
.nav-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
}
.nav-left,.nav-right{
  display:flex;
  align-items:center;
  gap:26px;
}
.nav-left{flex:1 1 0;}
.nav-right{flex:1 1 0;justify-content:flex-end;gap:18px;}
.nav-link{
  position:relative;
  color:var(--text-2);
  font-size:14px;
  padding:6px 0;
  transition:color var(--t);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width var(--t);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{width:16px;}
.nav-link.is-active{color:var(--text-1);}
.nav-link.is-active::after{width:16px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
}
.brand:hover{color:var(--text-1);}
.nav-center{
  position:absolute;
  left:50%;
  transform:translateX(-50%);
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:9px;
  background:rgba(47,212,198,.08);
  border:1px solid rgba(47,212,198,.32);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.4px;
}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  background:transparent;
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.menu-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{
  display:none;
  position:fixed;
  inset:68px 0 0 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:20px;
  z-index:99;
  overflow-y:auto;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  height:56px;
  font-size:16px;
  color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.mobile-panel .btn{margin-top:22px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  padding:22px 0 0;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.crumb-sep{color:rgba(255,255,255,.2);}
.crumb-current{
  color:var(--text-2);
  max-width:min(560px,60vw);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:34px 0 46px;
}
.article-hero-bg{
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(10,16,24,.9),rgba(10,16,24,.97)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.9;
  z-index:-1;
}
.article-hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 92%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 92%);
}
.article-hero-inner{
  max-width:860px;
  margin:26px auto 0;
}
.article-hero h1{
  font-size:clamp(26px,3.4vw,42px);
  line-height:1.3;
  letter-spacing:-.5px;
  margin:16px 0 0;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-3);
}
.article-meta .dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:rgba(255,255,255,.22);
}

/* ---------- 正文阅读区 ---------- */
.article-section{
  padding:8px 0 20px;
}
.article-shell{
  max-width:820px;
  margin:0 auto;
  padding:0 20px;
}
.article-body{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1),inset 0 1px 0 rgba(255,255,255,.06);
  padding:36px 40px 42px;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.4;
  margin:42px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--brand);
}
.article-body h3{
  font-size:19px;
  line-height:1.5;
  margin:30px 0 12px;
  color:var(--text-1);
}
.article-body h4{
  font-size:16px;
  margin:22px 0 10px;
  color:var(--brand);
}
.article-body p{
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
  margin:0 0 18px;
}
.article-body ul,.article-body ol{
  margin:0 0 18px;
  padding-left:22px;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{
  font-size:15.5px;
  line-height:1.9;
  color:var(--text-2);
  margin-bottom:8px;
}
.article-body li::marker{color:var(--brand);}
.article-body strong{color:var(--text-1);font-weight:600;}
.article-body a{
  color:var(--brand);
  border-bottom:1px solid rgba(47,212,198,.35);
}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body img{
  border-radius:var(--r-card);
  margin:22px 0;
  border:1px solid var(--line);
}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:rgba(47,212,198,.06);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-1);
  font-size:15.5px;
  line-height:1.9;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
  border-radius:var(--r-card);
  overflow:hidden;
}
.article-body th{
  background:rgba(47,212,198,.1);
  color:var(--text-1);
  font-weight:600;
  text-align:left;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  color:var(--text-2);
  line-height:1.7;
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
.article-body code{
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
  color:var(--brand);
}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:34px 0;
}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  min-height:280px;
  padding:40px 24px;
  gap:14px;
}
.empty-state .empty-icon{
  width:56px;
  height:56px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(47,212,198,.08);
  border:1px solid rgba(47,212,198,.28);
  color:var(--brand);
  font-size:24px;
}
.empty-state h2{font-size:20px;}
.empty-state p{color:var(--text-3);font-size:14.5px;max-width:420px;}

/* ---------- 标签区 ---------- */
.article-tags{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin:26px auto 0;
  max-width:820px;
  padding:0 20px;
}
.tags-label{
  font-size:12px;
  letter-spacing:.5px;
  color:var(--text-3);
  margin-right:2px;
}

/* ---------- 相关推荐 ---------- */
.related{
  padding:72px 0 8px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(20px,2.4vw,28px);
}
.section-head p{
  margin-top:8px;
  color:var(--text-3);
  font-size:14px;
}
.section-head .text-link{
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
}
.section-head .text-link:hover{color:var(--brand);}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t);
}
.card:hover{
  transform:translateY(-3px);
  background:var(--glass-hover);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-2);
}
.card-media{
  position:relative;
  aspect-ratio:16/10;
  background:var(--bg-2);
  overflow:hidden;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform 320ms ease-out;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{
  padding:18px 20px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.card-body h3{
  font-size:17px;
  line-height:1.5;
}
.card-body h3 a{color:var(--text-1);}
.card-body h3 a:hover{color:var(--brand);}
.card-body p{
  font-size:13.5px;
  line-height:1.75;
  color:var(--text-3);
}
.card-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.card-foot .arrow{color:var(--brand);font-size:14px;}

/* ---------- 上/下一篇 ---------- */
.article-nav{
  max-width:820px;
  margin:52px auto 0;
  padding:0 20px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.article-nav a{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--glass);
  transition:border-color var(--t),background var(--t),transform var(--t);
}
.article-nav a:hover{
  border-color:rgba(47,212,198,.4);
  background:var(--glass-hover);
  transform:translateY(-2px);
}
.article-nav .nav-label{
  font-size:12px;
  letter-spacing:.5px;
  color:var(--text-3);
}
.article-nav .nav-title{
  font-size:15px;
  font-weight:600;
  color:var(--text-1);
}
.article-nav .nav-next{text-align:right;align-items:flex-end;}
.back-row{
  max-width:820px;
  margin:20px auto 0;
  padding:0 20px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

/* ---------- 底部 CTA ---------- */
.cta-section{
  padding:88px 0 96px;
}
.cta-card{
  position:relative;
  overflow:hidden;
  text-align:center;
  padding:56px 32px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  opacity:.14;
  z-index:-1;
}
.cta-card h2{
  font-size:clamp(22px,2.8vw,32px);
  line-height:1.35;
}
.cta-card p{
  margin:14px auto 26px;
  max-width:560px;
  color:var(--text-2);
  font-size:15px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(19,30,45,.5),rgba(10,16,24,.9));
  padding:56px 0 26px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:14px;
  background-image:linear-gradient(90deg,transparent 0 8%,rgba(47,212,198,.5) 12%,transparent 20%,rgba(47,212,198,.35) 30%,transparent 42%,rgba(47,212,198,.5) 55%,transparent 66%,rgba(47,212,198,.3) 78%,transparent 92%);
  background-size:100% 1px;
  background-repeat:no-repeat;
  background-position:center;
  opacity:.6;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{
  font-size:13.5px;
  line-height:1.85;
  color:var(--text-3);
  max-width:340px;
}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:13.5px;
  color:var(--text-3);
}
.footer-col a:hover{color:var(--brand);}
.footer-col span{
  font-size:13.5px;
  color:var(--text-3);
  line-height:1.7;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 移动端固定条 ---------- */
.mobile-bar{
  display:none;
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:120;
  height:60px;
  padding:0 14px;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:rgba(14,22,34,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  transform:translateY(100%);
  transition:transform 200ms ease-out;
}
.mobile-bar.is-visible{transform:translateY(0);}
.mobile-bar p{
  font-size:13px;
  color:var(--text-2);
  line-height:1.4;
}
.mobile-bar .btn{min-height:40px;padding:0 16px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media (min-width:1024px) and (max-width:1439px){
  .nav-left,.nav-right{gap:20px;}
}
@media (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-center{position:static;transform:none;left:auto;}
  .nav-inner{height:56px;}
  .mobile-panel{inset:56px 0 0 0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-body{padding:30px 26px 34px;}
}
@media (max-width:767px){
  body{padding-bottom:72px;font-size:15px;}
  .container{padding:0 16px;}
  .article-hero{padding:20px 0 34px;}
  .crumb-bar{padding:16px 0 0;}
  .article-hero-inner{margin-top:18px;}
  .article-shell,.article-tags,.article-nav,.back-row{padding:0 16px;}
  .article-body{padding:24px 18px 28px;border-radius:12px;}
  .article-body h2{margin-top:32px;font-size:20px;}
  .article-body p{font-size:15px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .related{padding:52px 0 8px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .card-grid{grid-template-columns:1fr;}
  .article-nav{grid-template-columns:1fr;}
  .article-nav .nav-next{text-align:left;align-items:flex-start;}
  .cta-section{padding:60px 0 68px;}
  .cta-card{padding:38px 20px;border-radius:14px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .mobile-bar{display:flex;}
  .crumb-current{max-width:70vw;}
}
@media (max-width:480px){
  .card,.article-body,.cta-card{border-radius:12px;}
  .btn{width:100%;}
  .mobile-bar .btn{width:auto;}
  .article-meta{font-size:12.5px;gap:8px 12px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A1018;
  --bg-1:#0E1622;
  --bg-2:#131E2D;
  --brand:#2FD4C6;
  --brand-deep:#17A79B;
  --accent:#F0A34B;
  --text-1:#EAF2F8;
  --text-2:#A7B6C6;
  --text-3:#6C7C8E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --glass-hover:rgba(255,255,255,.06);
  --radius-card:14px;
  --radius-lg:18px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.5);
  --ease:180ms ease-out;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:15px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:inherit;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;padding:0;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(47,212,198,.3);}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:var(--bg-1);}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1440px){
  .container{max-width:1280px;padding:0 32px;}
}

/* ---------- 品牌标 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:32px;height:32px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  border:1px solid rgba(47,212,198,.35);
  background:linear-gradient(160deg,rgba(47,212,198,.14),rgba(47,212,198,.03));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{
  font-size:16px;font-weight:700;letter-spacing:.4px;color:var(--text-1);
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--brand);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,16,24,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background-color var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,16,24,.88);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:68px;
}
.nav-left,.nav-right{
  display:flex;align-items:center;gap:26px;flex:1 1 0;min-width:0;
}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:14px;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;
  width:16px;height:2px;border-radius:2px;
  background:var(--brand);opacity:0;transform:scaleX(.4);
  transition:opacity var(--ease),transform var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.nav-link.is-active{color:var(--text-1);font-weight:600;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;letter-spacing:.2px;
  padding:12px 22px;min-height:44px;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  color:#06211F;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 24px rgba(47,212,198,.32);
}
.btn-primary:hover{box-shadow:0 0 30px rgba(47,212,198,.45);transform:translateY(-1px);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  color:var(--text-1);
  border:1px solid var(--line-strong);
  background:transparent;
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(47,212,198,.06);color:var(--brand);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{padding:9px 16px;font-size:13px;min-height:40px;}

.menu-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);
  background:var(--glass);
  align-items:center;justify-content:center;
}
.menu-toggle span{
  display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;
}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform var(--ease);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.mobile-panel{
  display:none;
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:55;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:16px 20px 32px;
  flex-direction:column;gap:4px;
  overflow-y:auto;
}
.mobile-panel .m-link{
  display:flex;align-items:center;
  height:56px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel .m-link.is-active{color:var(--brand);font-weight:600;}
.mobile-panel .btn{margin-top:20px;width:100%;}
body.menu-open .mobile-panel{display:flex;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:60px 0 56px;
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-2) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,16,24,.94) 0%,rgba(10,16,24,.72) 52%,rgba(10,16,24,.9) 100%);
}
.hero-inner{position:relative;z-index:2;}
.cloud-line{
  position:absolute;top:24px;right:0;z-index:1;
  width:360px;height:120px;opacity:.06;pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:20px;
}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.5px;
  color:var(--brand);
  padding:6px 14px;border-radius:999px;
  background:rgba(47,212,198,.12);
  border:1px solid rgba(47,212,198,.3);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:700;line-height:1.25;letter-spacing:-.5px;
  max-width:16em;
}
.hero-lead{
  margin-top:20px;max-width:44em;
  font-size:15.5px;color:var(--text-2);line-height:1.85;
}
.hero-lead + .hero-lead{margin-top:14px;}
.hero-actions{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-stats div{min-width:120px;}
.hero-stats strong{
  display:block;font-size:20px;font-weight:700;color:var(--accent);letter-spacing:.2px;
}
.hero-stats span{font-size:13px;color:var(--text-3);}

/* ---------- 主体两栏 ---------- */
.cat-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:44px;
  align-items:start;
  padding:64px 0 88px;
}
.toc{
  position:sticky;top:88px;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  padding:18px 16px;
}
.toc-title{
  font-size:12px;letter-spacing:.5px;color:var(--text-3);
  padding:0 10px 12px;border-bottom:1px solid var(--line);margin-bottom:10px;
}
.toc a{
  display:block;
  padding:9px 10px;border-radius:8px;
  font-size:13.5px;color:var(--text-2);
  border-left:2px solid transparent;
}
.toc a:hover{color:var(--text-1);background:var(--glass-hover);border-left-color:var(--brand);}
.toc-note{
  margin-top:16px;padding:14px 12px;
  border-radius:10px;
  background:rgba(47,212,198,.06);
  border:1px solid rgba(47,212,198,.18);
  font-size:12.5px;line-height:1.7;color:var(--text-2);
}

.flow-section{
  padding-bottom:48px;
  margin-bottom:48px;
  border-bottom:1px solid var(--line);
  scroll-margin-top:92px;
}
.flow-section:last-of-type{border-bottom:none;margin-bottom:0;}
.section-head{margin-bottom:22px;}
.section-head .kicker{
  display:block;font-size:12px;letter-spacing:.5px;color:var(--brand);margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;line-height:1.35;letter-spacing:-.3px;
}
.section-head h3{font-size:20px;font-weight:600;line-height:1.45;}
.flow-section p{color:var(--text-2);font-size:15px;line-height:1.9;}
.flow-section p + p{margin-top:16px;}

.define-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-left:2px solid rgba(47,212,198,.5);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.define-card strong{color:var(--text-1);font-weight:600;}

.point-list{margin-top:24px;display:grid;gap:12px;}
.point-list li{
  display:flex;gap:14px;
  padding:14px 16px;
  border-radius:10px;
  background:var(--glass);
  border:1px solid var(--line);
  font-size:14px;color:var(--text-2);line-height:1.8;
  transition:background-color var(--ease),border-color var(--ease);
}
.point-list li:hover{background:var(--glass-hover);border-color:var(--line-strong);}
.point-list .num{
  flex:none;width:22px;height:22px;margin-top:4px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:6px;font-size:12px;font-weight:700;
  color:var(--brand);
  background:rgba(47,212,198,.12);
  border:1px solid rgba(47,212,198,.3);
}
.point-list b{color:var(--text-1);font-weight:600;}

.mod-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:26px;
}
.mod-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background-color var(--ease);
}
.mod-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:var(--line-strong);
  background:var(--glass-hover);
}
.mod-thumb{
  aspect-ratio:16/9;background:var(--bg-2);overflow:hidden;
}
.mod-thumb img{width:100%;height:100%;object-fit:cover;}
.mod-body{padding:18px 20px 22px;}
.mod-body .tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.3px;
  color:var(--accent);
  background:rgba(240,163,75,.12);
  border:1px solid rgba(240,163,75,.3);
  border-radius:999px;padding:3px 10px;margin-bottom:12px;
}
.mod-body h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.mod-body p{font-size:14px;color:var(--text-2);line-height:1.8;}
.mod-body ul{margin-top:12px;display:grid;gap:6px;}
.mod-body ul li{
  position:relative;padding-left:14px;font-size:13.5px;color:var(--text-3);line-height:1.75;
}
.mod-body ul li::before{
  content:"";position:absolute;left:0;top:9px;
  width:5px;height:5px;border-radius:50%;background:var(--brand);
}

.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:26px;}
.scene-card{
  padding:20px;
  border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color var(--ease),background-color var(--ease);
}
.scene-card:hover{border-color:rgba(47,212,198,.35);background:rgba(47,212,198,.05);}
.scene-card h3{font-size:16px;font-weight:600;margin-bottom:10px;}
.scene-card p{font-size:13.5px;color:var(--text-2);line-height:1.8;}
.scene-card .idx{
  font-size:12px;color:var(--text-3);letter-spacing:.5px;display:block;margin-bottom:10px;
}

.flow-steps{margin-top:26px;display:grid;gap:14px;}
.flow-steps li{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
}
.flow-steps .step-no{
  flex:none;width:30px;height:30px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#06211F;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 18px rgba(47,212,198,.28);
}
.flow-steps h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.flow-steps p{font-size:14px;color:var(--text-2);line-height:1.8;}

.table-wrap{
  margin-top:26px;overflow-x:auto;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
}
table{width:100%;border-collapse:collapse;min-width:520px;}
thead th{
  background:rgba(255,255,255,.06);
  text-align:left;font-size:13.5px;font-weight:600;color:var(--text-1);
  padding:14px 18px;border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
tbody td{
  padding:13px 18px;font-size:13.5px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
tbody tr:last-child td{border-bottom:none;}
tbody td:first-child{color:var(--text-1);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-list{margin-top:26px;display:grid;gap:12px;}
.faq-item{
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
  transition:border-color var(--ease),background-color var(--ease);
}
.faq-item[open]{border-color:rgba(47,212,198,.35);background:rgba(47,212,198,.04);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;min-height:56px;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:none;
  font-size:20px;font-weight:400;line-height:1;color:var(--brand);
  transition:transform var(--ease);
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-body{
  padding:0 20px 20px;font-size:14px;color:var(--text-2);line-height:1.85;
}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(47,212,198,.14),rgba(255,255,255,.03) 55%,rgba(255,255,255,.02));
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:0 16px 40px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
  padding:44px 40px;
  text-align:center;
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4;}
.cta-card p{margin-top:14px;color:var(--text-2);font-size:14.5px;max-width:44em;margin-left:auto;margin-right:auto;}
.cta-card .btn{margin-top:28px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(47,212,198,.35),transparent);
  opacity:.6;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:34em;}
.footer-col h3{
  font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.2px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--text-3);line-height:1.7;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--text-3);
}

/* ---------- 移动端底部转化条 ---------- */
.mobile-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:58;
  height:60px;padding:0 16px;
  align-items:center;justify-content:space-between;gap:12px;
  background:rgba(14,22,34,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  transform:translateY(100%);
  transition:transform 200ms ease-out;
}
.mobile-bar.show{transform:translateY(0);}
.mobile-bar span{font-size:13px;color:var(--text-2);line-height:1.4;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .header-inner{height:60px;}
  .menu-toggle{display:inline-flex;}
  .mobile-panel{top:60px;}
  .cat-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding:48px 0 64px;}
  .toc{position:static;}
  .mod-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:767px){
  body{font-size:14.5px;padding-bottom:72px;}
  .container{padding:0 16px;}
  .page-hero{padding:44px 0 40px;}
  .cloud-line{display:none;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:20px;}
  .hero-stats div{min-width:calc(50% - 10px);}
  .mod-grid{grid-template-columns:minmax(0,1fr);}
  .scene-grid{grid-template-columns:minmax(0,1fr);}
  .flow-section{padding-bottom:36px;margin-bottom:36px;}
  .cta-band{padding-bottom:64px;}
  .cta-card{padding:32px 22px;}
  .cta-card .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;}
  .mobile-bar{display:flex;}
}
@media (max-width:480px){
  .mod-card,.faq-item,.toc,.scene-card,.flow-steps li{border-radius:12px;}
  .btn{width:100%;}
  .faq-item summary{font-size:15px;padding:16px;}
  .cta-card{padding:28px 18px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg-0:#0A1018;
  --bg-1:#0E1622;
  --bg-2:#131E2D;
  --brand:#2FD4C6;
  --brand-deep:#17A79B;
  --accent:#F0A34B;
  --text-1:#EAF2F8;
  --text-2:#A7B6C6;
  --text-3:#6C7C8E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --glass-hi:rgba(255,255,255,.06);
  --r-card:14px;
  --r-big:18px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.5);
  --shadow-glow:0 0 24px rgba(47,212,198,.32);
  --shadow-glow-hi:0 0 32px rgba(47,212,198,.45);
  --container:1200px;
  --t:180ms ease-out;
  --font:-apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background:linear-gradient(180deg,var(--bg-0) 0%, var(--bg-1) 42%, var(--bg-2) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t), border-color var(--t), background-color var(--t);}
a:hover{color:var(--brand);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(47,212,198,.3);color:#fff;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:#25323f;border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:#33465a;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1440px){
  .container{max-width:1280px;padding:0 32px;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(10,16,24,.62);
  border-bottom:1px solid transparent;
  transition:background-color var(--t), border-color var(--t), backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(10,16,24,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:16px;
  height:68px;
}
.nav-left,.nav-right{
  display:flex;
  align-items:center;
  gap:26px;
  flex:1 1 0;
  min-width:0;
}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:16px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-1);}
.nav-link.is-active::after{transform:scaleX(1);}

.brand-center{flex:0 0 auto;display:flex;justify-content:center;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:600;
  letter-spacing:.2px;
  color:var(--text-1);
}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:32px;
  height:32px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(47,212,198,.08);
  border:1px solid rgba(47,212,198,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{white-space:nowrap;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  min-height:44px;
  border-radius:var(--r-btn);
  font-size:14px;
  font-weight:600;
  line-height:1.2;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform var(--t), box-shadow var(--t), background-color var(--t), border-color var(--t), color var(--t);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#06211F;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  color:#06211F;
  box-shadow:var(--shadow-glow-hi);
  transform:translateY(-1px);
}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-ghost:hover{
  border-color:var(--brand);
  background:rgba(47,212,198,.06);
  color:var(--text-1);
}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{padding:9px 16px;min-height:38px;font-size:13.5px;}

.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--glass);
  align-items:center;
  justify-content:center;
  color:var(--text-1);
  flex:0 0 auto;
}
.menu-toggle span{
  display:block;
  width:18px;
  height:1.5px;
  background:currentColor;
  border-radius:2px;
  position:relative;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:1.5px;
  background:currentColor;
  border-radius:2px;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.mobile-panel{
  display:none;
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--bg-1);
  padding:88px 24px 32px;
  overflow-y:auto;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;
  font-size:16px;
  line-height:56px;
  color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.mobile-panel .btn{width:100%;margin-top:24px;}
.mobile-close{
  position:absolute;
  top:20px;
  right:20px;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:20px;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-line{border-top:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.5px;
  color:var(--brand);
  background:rgba(47,212,198,.1);
  border:1px solid rgba(47,212,198,.3);
  border-radius:var(--r-pill);
  padding:5px 12px;
  margin-bottom:16px;
}
.eyebrow.warm{
  color:var(--accent);
  background:rgba(240,163,75,.1);
  border-color:rgba(240,163,75,.32);
}
h1,h2,h3{color:var(--text-1);}
h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.5px;
}
h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.2px;
}
h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
}
.lead{font-size:16px;color:var(--text-2);line-height:1.85;}
.muted{color:var(--text-3);font-size:13.5px;line-height:1.7;}

.glass-card{
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  letter-spacing:.4px;
  padding:4px 11px;
  border-radius:var(--r-pill);
  color:var(--brand);
  background:rgba(47,212,198,.12);
  border:1px solid rgba(47,212,198,.3);
}
.tag.warm{
  color:var(--accent);
  background:rgba(240,163,75,.12);
  border-color:rgba(240,163,75,.3);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--text-2);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:56px 0 88px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  top:-60px;
  right:-40px;
  width:520px;
  height:360px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.06;
  filter:grayscale(.2);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{margin-bottom:20px;}
.hero-copy .lead{max-width:600px;margin-bottom:14px;}
.hero-copy .intro-extra{max-width:600px;color:var(--text-3);font-size:14.5px;line-height:1.85;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:20px;
}
.stat{
  padding-right:28px;
  margin-right:28px;
  border-right:1px solid var(--line);
}
.stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.stat-num{
  font-size:22px;
  font-weight:700;
  color:var(--accent);
  line-height:1.2;
  letter-spacing:-.4px;
}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px;}

.hero-visual{position:relative;}
.hero-card{
  position:relative;
  border-radius:var(--r-big);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.hero-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.hero-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg, rgba(10,16,24,.12), rgba(10,16,24,.72));
}
.hero-float{
  position:absolute;
  right:-6px;
  bottom:-18px;
  min-width:196px;
  padding:14px 16px;
  border-radius:var(--r-card);
  background:rgba(19,30,45,.78);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-hover), inset 0 1px 0 rgba(255,255,255,.06);
}
.hero-float .fnum{font-size:20px;font-weight:700;color:var(--brand);line-height:1.3;}
.hero-float .flabel{font-size:12.5px;color:var(--text-3);margin-top:2px;}

/* ---------- 安全能力卡网格 ---------- */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.feature-card{
  padding:26px 24px 24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform var(--t), box-shadow var(--t), border-color var(--t), background-color var(--t);
}
.feature-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover), inset 0 1px 0 rgba(255,255,255,.06);
  border-color:var(--line-strong);
  background:var(--glass-hi);
}
.icon-box{
  width:42px;
  height:42px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(47,212,198,.1);
  border:1px solid rgba(47,212,198,.3);
  margin-bottom:16px;
}
.icon-box svg{width:20px;height:20px;stroke:var(--brand);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.feature-card h3{margin-bottom:10px;font-size:18px;}
.feature-card p{font-size:14px;line-height:1.8;color:var(--text-2);}
.feature-card .spec-row{
  display:flex;
  gap:10px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--text-3);
}
.feature-card .spec-row b{color:var(--brand);font-weight:600;}

/* ---------- 时间轴 ---------- */
.timeline-wrap{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:48px;
  align-items:start;
}
.timeline{position:relative;padding-left:38px;}
.timeline::before{
  content:"";
  position:absolute;
  left:13px;
  top:8px;
  bottom:8px;
  width:1px;
  background:linear-gradient(180deg, rgba(47,212,198,.5), rgba(255,255,255,.06));
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;
  left:-38px;
  top:2px;
  width:28px;
  height:28px;
  border-radius:9px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12.5px;
  font-weight:700;
  color:var(--brand);
  background:rgba(19,30,45,.9);
  border:1px solid rgba(47,212,198,.4);
  box-shadow:0 0 16px rgba(47,212,198,.18);
}
.tl-item h3{font-size:17px;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:520px;}

/* ---------- 引用块 ---------- */
.quote-block{
  position:relative;
  padding:38px 40px 36px 44px;
  border-radius:var(--r-big);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.quote-block::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--brand),rgba(47,212,198,.1));
}
.quote-block .qmark{
  font-size:44px;
  line-height:1;
  color:rgba(47,212,198,.35);
  font-weight:700;
  margin-bottom:10px;
}
.quote-block p{
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-1);
  max-width:860px;
}
.quote-block .qmeta{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:44px;
  align-items:start;
}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color var(--t), background-color var(--t);
}
.faq-item[open]{
  border-color:rgba(47,212,198,.35);
  background:rgba(255,255,255,.055);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:24px;
  height:24px;
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:600;
  color:var(--brand);
  border:1px solid rgba(47,212,198,.35);
  background:rgba(47,212,198,.08);
  transition:transform var(--t);
}
.faq-item[open] summary::after{content:"−";}
.faq-body{padding:0 20px 20px;}
.faq-body p{font-size:14px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-section{padding:88px 0;}
.cta-card{
  position:relative;
  border-radius:var(--r-big);
  padding:52px 48px;
  background:var(--glass);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-hover), inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
  text-align:center;
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  opacity:.07;
  pointer-events:none;
}
.cta-card > *{position:relative;}
.cta-card h2{margin-bottom:14px;}
.cta-card p{max-width:640px;margin:0 auto 28px;font-size:15px;color:var(--text-2);}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,212,198,.45),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-3);max-width:340px;}
.footer-col h3{
  font-size:14px;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:.3px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li a,
.footer-col li span{font-size:13.5px;color:var(--text-3);}
.footer-col li a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--text-3);
}

/* ---------- 移动端固定转化条 ---------- */
.mobile-bar{
  display:none;
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  height:60px;
  padding:0 16px;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:rgba(14,22,34,.9);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-top:1px solid var(--line);
  transform:translateY(100%);
  transition:transform 200ms ease-out;
}
.mobile-bar.is-visible{transform:translateY(0);}
.mobile-bar .bar-text{font-size:13px;color:var(--text-2);line-height:1.4;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-left,.nav-right{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-inner{height:60px;justify-content:space-between;}
  .brand-center{flex:1 1 auto;justify-content:flex-start;}
  .hero{padding:36px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-card img{aspect-ratio:16/10;}
  .hero-float{position:static;margin-top:16px;right:auto;bottom:auto;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .timeline-wrap{grid-template-columns:1fr;gap:36px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{padding-bottom:72px;font-size:15px;}
  .container{padding:0 16px;}
  h1{font-size:clamp(28px,7vw,34px);}
  .hero-stats{gap:18px 0;}
  .stat{padding-right:18px;margin-right:18px;}
  .grid-3{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .hero-actions .btn{width:100%;}
  .cta-card{padding:36px 24px;}
  .cta-actions .btn{width:100%;}
  .quote-block{padding:28px 24px 26px 28px;}
  .mobile-bar{display:flex;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:480px){
  .feature-card{border-radius:12px;}
  .hero-card{border-radius:14px;}
  .stat-num{font-size:19px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A1018;
  --bg-1:#0E1622;
  --bg-2:#131E2D;
  --brand:#2FD4C6;
  --brand-deep:#17A79B;
  --accent:#F0A34B;
  --text-1:#EAF2F8;
  --text-2:#A7B6C6;
  --text-3:#6C7C8E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --glass-hover:rgba(255,255,255,.06);
  --radius:14px;
  --radius-lg:18px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.5);
  --container:1200px;
  --sec:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.85;
  color:var(--text-1);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 42%,var(--bg-0) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(47,212,198,.3);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22)}
a{color:inherit;text-decoration:none;transition:color 180ms ease-out}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.3px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,16,24,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background 180ms ease-out,border-color 180ms ease-out;
}
.site-header.is-scrolled{background:rgba(10,16,24,.88);border-bottom-color:var(--line)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:68px;
  gap:16px;
}
.nav-left{display:flex;align-items:center;gap:22px}
.nav-right{display:flex;align-items:center;gap:16px;justify-content:flex-end}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:0;
  width:0;height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width 180ms ease-out;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{width:16px}
.nav-link.is-active{color:var(--text-1)}
.nav-link.is-active::after{width:16px}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;padding:4px 6px}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  display:grid;place-items:center;
  border-radius:8px;
  background:rgba(47,212,198,.08);
  border:1px solid rgba(47,212,198,.3);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:15px;font-weight:700;letter-spacing:.5px;color:var(--text-1)}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;
  transition:border-color 180ms ease-out,background 180ms ease-out;
}
.menu-toggle:hover{border-color:var(--brand);background:rgba(47,212,198,.06)}
.menu-toggle span{display:block;width:18px;height:1.6px;background:var(--text-1);position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--text-1);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ---------- mobile panel ---------- */
.mobile-panel{
  position:fixed;inset:0;z-index:80;
  background:var(--bg-1);
  padding:88px 24px 32px;
  opacity:0;pointer-events:none;transform:translateY(-10px);
  transition:opacity 200ms ease-out,transform 200ms ease-out;
}
.mobile-panel.is-open{opacity:1;pointer-events:auto;transform:none}
.mobile-panel-inner{display:flex;flex-direction:column;gap:4px;max-width:520px;margin:0 auto}
.mobile-link{
  font-size:16px;line-height:56px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-link.is-active{color:var(--brand)}
.mobile-link:hover{color:var(--text-1)}
.mobile-cta{margin-top:24px;width:100%}
.mobile-close{
  position:absolute;top:20px;right:20px;
  width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);display:grid;place-items:center;
  font-size:18px;color:var(--text-2);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;letter-spacing:.3px;
  border:1px solid transparent;
  transition:all 180ms ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#06211F;
  box-shadow:0 0 24px rgba(47,212,198,.32);
}
.btn-primary:hover{box-shadow:0 0 32px rgba(47,212,198,.45);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(47,212,198,.06)}
.btn-ghost:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-sm{padding:9px 16px;font-size:13px}

/* ---------- section base ---------- */
.section{padding:var(--sec) 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:15px}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:12px;letter-spacing:1.5px;color:var(--brand);
  padding:5px 12px;border-radius:999px;
  background:rgba(47,212,198,.1);
  border:1px solid rgba(47,212,198,.28);
}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}

/* ---------- banner ---------- */
.banner-wrap{padding:36px 0 0}
.banner{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:420px;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:52px 48px 44px;
  border:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(10,16,24,.55) 0%,rgba(10,16,24,.88) 62%,rgba(10,16,24,.96) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat,
    var(--bg-2);
  box-shadow:var(--shadow);
}
.banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(47,212,198,.07),transparent 45%);
}
.banner-inner{position:relative;z-index:2;max-width:760px}
.breadcrumb{
  position:absolute;top:26px;left:48px;z-index:3;
  font-size:13px;color:var(--text-3);
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{margin:0 8px;color:var(--text-3)}
.banner h1{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.25;
  letter-spacing:-.5px;
  margin-bottom:18px;
}
.banner-sub{color:var(--text-2);font-size:16px;max-width:640px;margin-bottom:26px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.5px;
  padding:5px 13px;border-radius:999px;
  color:var(--brand);
  background:rgba(47,212,198,.12);
  border:1px solid rgba(47,212,198,.3);
}
.tag-accent{color:var(--accent);background:rgba(240,163,75,.12);border-color:rgba(240,163,75,.3)}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- stat strip ---------- */
.stat-strip{
  margin-top:20px;
  border-radius:var(--radius);
  padding:22px 28px;
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:18px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.stat-item{display:flex;align-items:baseline;gap:12px}
.stat-item + .stat-item{border-left:1px solid var(--line);padding-left:18px}
.stat-num{font-size:26px;font-weight:700;color:var(--accent);letter-spacing:-.5px}
.stat-text{font-size:13.5px;color:var(--text-3);line-height:1.6}

/* ---------- checklist ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.prep-item{
  border-radius:var(--radius);
  padding:22px 22px 24px;
  background:var(--glass);
  border:1px solid var(--line);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,background 180ms ease-out;
}
.prep-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);background:var(--glass-hover)}
.prep-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:8px;margin-bottom:14px;
  font-size:13px;font-weight:700;color:var(--brand);
  background:rgba(47,212,198,.1);border:1px solid rgba(47,212,198,.3);
}
.prep-item h3{font-size:16px;margin-bottom:8px}
.prep-item p{font-size:13.5px;color:var(--text-2);line-height:1.75}

/* ---------- waterfall ---------- */
.waterfall{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.wf-card{
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;
}
.wf-card:nth-child(even){margin-top:40px}
.wf-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.wf-media{position:relative;height:186px;background:var(--bg-2);overflow:hidden}
.wf-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.wf-card:hover .wf-media img{transform:scale(1.03)}
.wf-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(10,16,24,.72) 100%);
}
.wf-step{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-size:12px;letter-spacing:.5px;color:var(--brand);
  padding:4px 11px;border-radius:999px;
  background:rgba(10,16,24,.72);
  border:1px solid rgba(47,212,198,.35);
}
.wf-body{padding:22px 24px 26px}
.wf-body h3{font-size:18px;margin-bottom:10px}
.wf-body > p{font-size:14px;color:var(--text-2);margin-bottom:16px}
.wf-list li{
  position:relative;
  font-size:13.5px;color:var(--text-2);
  padding-left:18px;line-height:1.75;
  margin-bottom:6px;
}
.wf-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:2px;
  background:rgba(47,212,198,.7);
}

/* ---------- compare table ---------- */
.table-scroll{
  overflow-x:auto;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
table{width:100%;border-collapse:collapse;min-width:720px}
thead th{
  background:rgba(255,255,255,.06);
  color:var(--text-1);
  font-size:14px;font-weight:600;
  text-align:left;
  padding:16px 20px;
  white-space:nowrap;
}
thead th:first-child{color:var(--text-2)}
tbody td{
  padding:15px 20px;
  font-size:14px;
  color:var(--text-2);
  border-top:1px solid var(--line);
  vertical-align:top;
}
tbody td:first-child{color:var(--text-1);font-weight:600;white-space:nowrap}
tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
tbody tr:hover td{background:rgba(47,212,198,.05)}

/* ---------- check order ---------- */
.order-list{display:grid;gap:14px}
.order-item{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  align-items:flex-start;
  padding:20px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  border-left:2px solid rgba(47,212,198,.5);
  transition:background 180ms ease-out,transform 180ms ease-out;
}
.order-item:hover{background:var(--glass-hover);transform:translateX(3px)}
.order-no{
  font-size:22px;font-weight:700;color:var(--brand);letter-spacing:-.5px;
  line-height:1.4;
}
.order-body h3{font-size:16px;margin-bottom:6px}
.order-body p{font-size:13.5px;color:var(--text-2)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
  transition:border-color 180ms ease-out,background 180ms ease-out;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{background:var(--glass-hover);border-color:rgba(47,212,198,.28)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  font-size:20px;font-weight:400;color:var(--brand);
  line-height:1;flex:0 0 auto;
  transition:transform 180ms ease-out;
}
.faq-item[open] summary::after{content:"−"}
.faq-body{
  padding:0 24px 22px;
  font-size:14px;color:var(--text-2);line-height:1.85;
  border-top:1px solid var(--line);
  padding-top:16px;
}

/* ---------- cta ---------- */
.cta-card{
  border-radius:var(--radius-lg);
  padding:56px 48px;
  text-align:center;
  background:
    radial-gradient(120% 140% at 50% 0%,rgba(47,212,198,.12) 0%,transparent 60%),
    var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.cta-card h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:14px}
.cta-card p{color:var(--text-2);font-size:15px;margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--sec);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(19,30,45,.5),rgba(10,16,24,.9));
  padding:56px 0 26px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,212,198,.35),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:14px;padding:0;justify-self:flex-start}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.8;max-width:340px}
.footer-col h3{font-size:14px;color:var(--text-1);margin-bottom:16px;letter-spacing:.3px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--text-3);line-height:1.7}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;align-items:center;
  padding-top:22px;
  font-size:13px;color:var(--text-3);
}

/* ---------- mobile bar ---------- */
.mobile-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:60px;
  align-items:center;justify-content:space-between;gap:14px;
  padding:0 16px;
  background:rgba(14,22,34,.9);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-top:1px solid var(--line);
  transform:translateY(100%);
  transition:transform 200ms ease-out;
}
.mobile-bar.is-visible{transform:none}
.mobile-bar p{font-size:13px;color:var(--text-2);line-height:1.4}

/* ---------- responsive ---------- */
@media (min-width:1440px){
  .container{max-width:1280px;padding:0 32px}
}
@media (max-width:1023px){
  .nav-left,.nav-right .nav-link{display:none}
  .nav-right{gap:0}
  .menu-toggle{display:flex}
  .header-inner{height:62px}
  .banner{padding:44px 28px 34px;min-height:360px}
  .breadcrumb{left:28px;top:22px}
  .prep-grid{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr;gap:12px;padding:20px 22px}
  .stat-item + .stat-item{border-left:none;padding-left:0;border-top:1px solid var(--line);padding-top:12px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  :root{--sec:64px}
}
@media (max-width:767px){
  :root{--sec:48px}
  body{padding-bottom:72px}
  .container{padding:0 16px}
  .banner{padding:36px 20px 30px;min-height:320px;border-radius:16px}
  .breadcrumb{left:20px;top:18px}
  .banner h1{font-size:clamp(28px,7vw,34px)}
  .banner-sub{font-size:15px}
  .banner-actions .btn{flex:1 1 auto}
  .waterfall{grid-template-columns:1fr;gap:16px}
  .wf-card:nth-child(even){margin-top:0}
  .prep-grid{grid-template-columns:1fr}
  .section-head{margin-bottom:26px}
  .cta-card{padding:38px 22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .order-item{grid-template-columns:38px 1fr;gap:12px;padding:18px}
  .mobile-bar{display:flex}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:14px 18px 18px}
}
@media (max-width:480px){
  .wf-card,.prep-item,.order-item{border-radius:12px}
  .btn{width:100%}
  .banner-actions{flex-direction:column;align-items:stretch}
  .stat-num{font-size:22px}
}