/* roulang page: index */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#101A2C;
  --brand:#2FE0C8;
  --brand-2:#2B6CF6;
  --accent:#E8B45A;
  --text-0:#EAF2FF;
  --text-1:#A9BAD3;
  --text-2:#6E82A0;
  --line:rgba(120,200,255,.14);
  --glass:rgba(18,28,45,.55);
  --success:#35D07F;
  --warn:#F2B544;
  --danger:#FF6B6B;
  --info:#38BDF8;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 8px 24px -16px rgba(0,0,0,.7);
  --sh-2:0 20px 48px -20px rgba(0,0,0,.85);
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-primary:#2FE0C8;
  --bs-border-color:rgba(120,200,255,.14);
  --bs-border-radius:16px;
  --bs-link-color:#A9BAD3;
  --bs-link-hover-color:#2FE0C8;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  text-align:left;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(120,200,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.6;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{color:var(--text-0);font-weight:700;letter-spacing:-.02em;margin:0;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:1240px;padding-left:32px;padding-right:32px;position:relative;z-index:1;}
.section{padding:110px 0;border-top:1px solid var(--line);position:relative;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--brand);border:1px solid var(--line);
  background:rgba(47,224,200,.07);
  padding:5px 12px;border-radius:999px;margin-bottom:18px;
}
.eyebrow i{font-size:11px;}
.section-head h2{font-size:34px;line-height:1.25;margin-bottom:16px;}
.section-head p{font-size:16px;color:var(--text-1);max-width:640px;}
.tnum{font-variant-numeric:tabular-nums;}
.muted{color:var(--text-2);}

/* ---------- 按钮 ---------- */
.btn{transition:all .22s ease;border-radius:var(--r-btn);font-weight:600;border:1px solid transparent;padding:12px 26px;}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.btn-glow:hover,.btn-glow:focus{
  color:#04121A;filter:brightness(1.08);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,224,200,.45),0 16px 40px -12px rgba(47,224,200,.7);
}
.btn-glow:active{transform:translateY(-1px);}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line);
  color:var(--text-0);
}
.btn-ghost:hover,.btn-ghost:focus{
  border-color:var(--brand);
  background:rgba(47,224,200,.08);
  color:var(--brand);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;display:block;text-align:center;}

/* ---------- 徽章 / 标签 ---------- */
.badge-glass{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(47,224,200,.1);
  border:1px solid rgba(47,224,200,.28);
  color:var(--brand);
  font-size:12px;letter-spacing:.04em;
  padding:4px 12px;border-radius:999px;font-weight:600;
}
.badge-gold{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(232,180,90,.12);
  border:1px solid rgba(232,180,90,.35);
  color:var(--accent);
  font-size:12px;padding:4px 12px;border-radius:999px;font-weight:600;
}
.badge-soft{
  display:inline-flex;align-items:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:12px;padding:4px 12px;border-radius:999px;
}

/* ---------- 玻璃卡 ---------- */
.glass{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  position:relative;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.glass::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.55),transparent);
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(10,17,30,.92);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;font-weight:800;font-size:15px;letter-spacing:-.03em;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 10px 26px -12px rgba(47,224,200,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{color:var(--text-0);font-weight:700;font-size:17px;}
.brand-sub{color:var(--text-2);font-size:11px;letter-spacing:.1em;text-transform:uppercase;}
.nav-main ul{display:flex;align-items:center;gap:6px;}
.nav-main a{
  display:block;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--text-1);position:relative;
}
.nav-main a:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav-main a.active{color:var(--brand);}
.nav-main a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(47,224,200,.8);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text-0);display:none;
}
.dropdown-menu.mega{
  width:780px;padding:0;border:1px solid var(--line);border-radius:16px;
  background:rgba(12,20,34,.97);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-2);
  margin-top:12px;overflow:hidden;
}
.dropdown-menu.mega::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2),transparent);
}
.mega-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:0;}
.mega-col{padding:24px;}
.mega-col + .mega-col{border-left:1px solid var(--line);background:rgba(255,255,255,.015);}
.mega-title{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-2);margin-bottom:14px;}
.mega-item{
  display:flex;gap:12px;padding:10px;border-radius:12px;transition:background .2s ease,transform .2s ease;
}
.mega-item:hover{background:rgba(47,224,200,.07);transform:translateX(3px);color:inherit;}
.mega-num{
  font-size:12px;color:var(--brand);font-weight:700;width:22px;flex-shrink:0;
  font-variant-numeric:tabular-nums;padding-top:3px;
}
.mega-item strong{display:block;color:var(--text-0);font-size:15px;font-weight:600;}
.mega-item span{display:block;color:var(--text-2);font-size:12px;line-height:1.6;}
.mega-post{padding:10px;border-radius:12px;display:block;}
.mega-post:hover{background:rgba(255,255,255,.04);}
.mega-post strong{display:block;color:var(--text-0);font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.mega-post span{font-size:12px;color:var(--text-2);}
.dropdown:hover > .dropdown-menu.mega,.dropdown-menu.mega.show{display:block;animation:megaIn .2s ease;}
@keyframes megaIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.offcanvas.mob-nav{background:var(--bg-1);color:var(--text-1);width:88vw;max-width:360px;border-right:1px solid var(--line);}
.mob-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--line);
  color:var(--text-0);font-size:15px;
}
.mob-link.active{color:var(--brand);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  padding:120px 0 90px;
  background-image:linear-gradient(180deg,rgba(5,8,15,.70),rgba(5,8,15,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:8%;
  width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.26),rgba(47,224,200,0) 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.hero h1{font-size:48px;line-height:1.15;margin:20px 0 20px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:18px;color:var(--text-1);max-width:600px;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px;}
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(12,20,34,.5);
  backdrop-filter:blur(14px);
  overflow:hidden;
}
.metric{padding:22px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:none;}
.metric b{display:block;font-size:28px;color:var(--accent);line-height:1.2;font-variant-numeric:tabular-nums;}
.metric span{display:block;font-size:13px;color:var(--text-2);margin-top:4px;}
.scroll-hint{
  position:absolute;right:40px;bottom:44px;z-index:3;
  display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-2);letter-spacing:.08em;
}
.scroll-hint i{animation:bob 1.8s infinite ease-in-out;}
@keyframes bob{0%,100%{transform:translateY(0);}50%{transform:translateY(6px);}}

/* ---------- 锚点副导航 ---------- */
.chip-nav{
  position:sticky;top:76px;z-index:1020;
  background:rgba(10,17,30,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.chip-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:12px 0;
  scrollbar-width:none;
}
.chip-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;
  border:1px solid var(--line);color:var(--text-1);font-size:14px;
  background:rgba(255,255,255,.02);white-space:nowrap;
}
.chip:hover{color:var(--brand);border-color:rgba(47,224,200,.4);}
.chip.active{
  background:rgba(47,224,200,.14);border-color:rgba(47,224,200,.5);
  color:var(--brand);font-weight:600;
}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;}
.bento-card{padding:28px;display:flex;flex-direction:column;gap:14px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(47,224,200,.28);}
.bento-card h3{font-size:19px;}
.bento-card p{font-size:14px;color:var(--text-1);}
.bento-icon{
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(47,224,200,.3);background:rgba(47,224,200,.08);
  color:var(--brand);font-size:18px;
}
.b-lg{grid-column:span 4;background:linear-gradient(140deg,rgba(47,224,200,.10),rgba(18,28,45,.6) 55%),var(--glass);}
.b-md{grid-column:span 2;}
.b-sm{grid-column:span 2;}
.bento-list{margin-top:6px;}
.bento-list li{position:relative;padding-left:20px;font-size:14px;color:var(--text-1);margin-bottom:8px;}
.bento-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;
  background:var(--brand);opacity:.75;transform:translateY(-50%) rotate(45deg);
}

/* ---------- 演示区 ---------- */
.demo-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center;}
.demo-points li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
.demo-points li:last-child{border-bottom:none;}
.demo-points i{color:var(--brand);margin-top:6px;}
.demo-points strong{display:block;color:var(--text-0);font-size:16px;font-weight:600;}
.demo-points span{font-size:14px;color:var(--text-2);}
.device{
  border:1px solid var(--line);border-radius:18px;overflow:hidden;
  background:var(--bg-2);box-shadow:var(--sh-2);
}
.device-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02);}
.dot{width:10px;height:10px;border-radius:50%;}
.dot-1{background:#FF6B6B;}.dot-2{background:#F2B544;}.dot-3{background:#35D07F;}
.device-bar span{margin-left:10px;font-size:12px;color:var(--text-2);}
.device img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 证据区 ---------- */
.proof-numbers{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:52px;
}
.proof-num{padding:26px;text-align:left;}
.proof-num b{display:block;font-size:34px;color:var(--accent);line-height:1.15;font-variant-numeric:tabular-nums;}
.proof-num span{font-size:13px;color:var(--text-2);}
.proof-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;}
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.case-card{padding:24px;}
.case-card h3{font-size:17px;margin:12px 0 8px;}
.case-card p{font-size:14px;color:var(--text-1);}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-top:16px;}
.quote{
  padding:20px 22px;border-left:3px solid var(--brand);
  background:rgba(47,224,200,.05);border-radius:0 14px 14px 0;
  font-size:14px;color:var(--text-1);margin-bottom:16px;
}
.quote footer{font-size:12px;color:var(--text-2);margin-top:10px;}

/* ---------- 资讯卡 ---------- */
.info-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  backdrop-filter:blur(18px) saturate(140%);
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.3);box-shadow:var(--sh-2);color:inherit;}
.info-cover{position:relative;overflow:hidden;}
.info-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.info-card:hover .info-cover img{transform:scale(1.04);}
.info-cover .badge-glass{position:absolute;left:14px;top:14px;background:rgba(6,12,22,.82);}
.info-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-body h3{
  font-size:17px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-body p{
  font-size:14px;color:var(--text-1);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--text-2);padding-top:12px;border-top:1px solid var(--line);
}
.info-meta i{color:var(--brand);}
.empty-state{padding:64px 24px;text-align:center;}
.empty-state i{font-size:38px;color:var(--brand);opacity:.7;display:block;margin-bottom:18px;}
.empty-state p{color:var(--text-2);margin-bottom:22px;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start;}
.price-card{padding:30px 26px;display:flex;flex-direction:column;gap:18px;transition:transform .25s ease,box-shadow .25s ease;}
.price-card.featured{
  transform:scale(1.03);
  border-color:rgba(47,224,200,.42);
  box-shadow:0 0 0 1px rgba(47,224,200,.28),0 24px 60px -28px rgba(47,224,200,.5);
}
.price-card.featured:hover{transform:scale(1.03) translateY(-4px);}
.price-card h3{font-size:19px;}
.price-tag{font-size:34px;color:var(--text-0);font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2;}
.price-tag small{font-size:14px;color:var(--text-2);font-weight:400;margin-left:4px;}
.price-desc{font-size:13px;color:var(--text-2);}
.price-list li{display:flex;gap:10px;font-size:14px;padding:7px 0;color:var(--text-1);}
.price-list i{color:var(--brand);margin-top:5px;font-size:12px;}
.price-card .btn{margin-top:auto;}
.ribbon{position:absolute;right:18px;top:18px;}

/* ---------- FAQ ---------- */
.accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:14px !important;
  margin-bottom:12px;overflow:hidden;backdrop-filter:blur(18px) saturate(140%);
}
.accordion-button{
  background:transparent;color:var(--text-0);font-weight:600;font-size:16px;
  padding:20px 24px;box-shadow:none;position:relative;border:none;
}
.accordion-button::after{display:none;}
.accordion-button .plus{
  margin-left:auto;font-size:16px;color:var(--brand);transition:transform .25s ease;
}
.accordion-button:not(.collapsed){color:var(--brand);background:rgba(47,224,200,.05);}
.accordion-button:not(.collapsed) .plus{transform:rotate(45deg);}
.accordion-button:focus{box-shadow:none;border:none;}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);transform:scaleY(0);transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.accordion-body{padding:0 24px 22px;font-size:15px;color:var(--text-1);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  padding:64px 48px;border-radius:22px;
  background:linear-gradient(140deg,rgba(47,224,200,.12),rgba(18,28,45,.72) 50%),var(--glass);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:50%;top:-140px;transform:translateX(-50%);
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.22),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:32px;margin-bottom:14px;position:relative;z-index:2;}
.cta-band p{max-width:560px;position:relative;z-index:2;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2;}
.cta-side{position:relative;z-index:2;}
.form-control,.form-select{
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  color:var(--text-0);border-radius:var(--r-input);padding:12px 14px;
}
.form-control:focus,.form-select:focus{
  background:rgba(47,224,200,.08);border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,224,200,.14);color:var(--text-0);
}
.form-label{font-size:13px;color:var(--text-2);margin-bottom:6px;}
.form-control::placeholder{color:rgba(110,130,160,.8);}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);background:var(--bg-1);
  padding:72px 0 28px;position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;left:-80px;top:-120px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),transparent 70%);
  pointer-events:none;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;position:relative;z-index:2;}
.foot-grid h4{font-size:14px;color:var(--text-0);margin-bottom:18px;letter-spacing:.02em;}
.foot-grid li{margin-bottom:10px;}
.foot-grid li a{font-size:14px;color:var(--text-2);}
.foot-grid li a:hover{color:var(--brand);}
.foot-brand p{font-size:14px;color:var(--text-2);max-width:320px;margin-top:16px;}
.foot-contact li{font-size:14px;color:var(--text-2);display:flex;gap:10px;align-items:flex-start;}
.foot-contact i{color:var(--brand);margin-top:6px;font-size:12px;}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-2);position:relative;z-index:2;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:1040;
  display:flex;flex-direction:column;gap:12px;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-btn{
  display:flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:999px;
  border:1px solid var(--line);background:rgba(12,20,34,.92);
  backdrop-filter:blur(14px);color:var(--text-0);font-size:14px;font-weight:600;
  box-shadow:var(--sh-1);
}
.float-btn:hover{color:var(--brand);border-color:rgba(47,224,200,.5);transform:translateY(-2px);}
.float-btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04121A;border-color:transparent;}
.float-btn.primary:hover{color:#04121A;filter:brightness(1.08);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero h1{font-size:42px;}
  .dropdown-menu.mega{width:680px;}
}
@media (max-width:991.98px){
  .nav-main{display:none !important;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-cta-desktop{display:none;}
  .nav-inner{height:68px;}
  .chip-nav{top:68px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:27px;}
  .hero{min-height:520px;padding:96px 0 72px;}
  .hero h1{font-size:34px;}
  .hero-sub{font-size:16px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:none;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .bento{grid-template-columns:repeat(2,1fr);}
  .b-lg{grid-column:span 2;}
  .b-md,.b-sm{grid-column:span 1;}
  .demo-wrap{grid-template-columns:1fr;gap:36px;}
  .proof-numbers{grid-template-columns:repeat(2,1fr);}
  .proof-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;gap:18px;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-4px);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 28px;}
  .cta-band h2{font-size:25px;}
  .scroll-hint{display:none;}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .hero{padding:82px 0 60px;min-height:0;}
  .hero h1{font-size:30px;}
  .hero-actions .btn{width:100%;text-align:center;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:none;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:none;}
  .bento{grid-template-columns:1fr;}
  .b-lg,.b-md,.b-sm{grid-column:span 1;}
  .proof-numbers{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 20px;}
  .cta-actions .btn{width:100%;text-align:center;}
  .foot-grid{grid-template-columns:1fr;}
  .float-cta{
    right:0;left:0;bottom:0;flex-direction:row;gap:0;
    padding:0;opacity:1;transform:none;pointer-events:auto;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .float-btn{
    flex:1;border-radius:0;justify-content:center;height:56px;
    border-left:none;box-shadow:none;background:rgba(10,17,30,.96);
  }
  .float-btn:first-child{border-left:1px solid var(--line);}
  body{padding-bottom:56px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#101A2C;
  --brand:#2FE0C8;
  --brand-2:#2B6CF6;
  --accent:#E8B45A;
  --text-0:#EAF2FF;
  --text-1:#A9BAD3;
  --text-2:#6E82A0;
  --line:rgba(120,200,255,.14);
  --glass:rgba(18,28,45,.55);
  --success:#35D07F;
  --warn:#F2B544;
  --danger:#FF6B6B;
  --info:#38BDF8;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 8px 24px -16px rgba(0,0,0,.7);
  --sh-2:0 20px 48px -20px rgba(0,0,0,.85);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;

  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-primary:var(--brand);
  --bs-primary-rgb:47,224,200;
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-card);
  --bs-link-color:var(--text-1);
  --bs-link-hover-color:var(--brand);
  --bs-body-font-family:var(--font-cn);
  --bs-emphasis-color:var(--text-0);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  text-align:left;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(120,200,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.08) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.35;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--text-1);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{color:var(--text-0);font-weight:700;letter-spacing:-.02em;margin:0 0 .6em;line-height:1.25;}
h1{font-size:44px;line-height:1.15;}
h2{font-size:34px;}
h3{font-size:22px;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.2em;}
strong{color:var(--text-0);font-weight:700;}
.tnum{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{max-width:1240px;padding-left:32px;padding-right:32px;margin:0 auto;}

/* ============ 按钮 ============ */
.btn{
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  padding:12px 24px;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
}
.btn:focus,.btn:active:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px;}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.btn-glow:hover{
  color:#04121A;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,224,200,.45),0 18px 42px -12px rgba(47,224,200,.7);
}
.btn-glow:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border:1px solid var(--line);
  color:var(--text-0);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--text-0);
  background:rgba(47,224,200,.08);
}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-0);}
.brand:hover{color:var(--text-0);}
.brand-mark{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(47,224,200,.3),0 10px 26px -12px rgba(47,224,200,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-0);}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--text-2);text-transform:uppercase;}

.nav-main ul{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.nav-main a{
  display:inline-block;
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-1);
  border-radius:10px;
  transition:color .22s ease,background-color .22s ease;
}
.nav-main a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(47,224,200,.7);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-main a:hover{color:var(--text-0);background:rgba(47,224,200,.06);}
.nav-main a:hover::after{transform:scaleX(1);}
.nav-main a.active{color:var(--brand);}
.nav-main a.active::after{transform:scaleX(1);}

.nav-right{display:flex;align-items:center;gap:12px;}

.dropdown-menu.mega{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-2);
  padding:0;
  margin-top:12px;
  width:760px;
  overflow:hidden;
  position:relative;
}
.dropdown-menu.mega::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),transparent);
}
.mega-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:0;}
.mega-col{padding:22px 24px;}
.mega-col + .mega-col{border-left:1px solid var(--line);}
.mega-title{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--text-2);
  text-transform:uppercase;
  margin-bottom:12px;
}
.mega-item{
  display:flex;
  gap:12px;
  padding:10px 12px;
  border-radius:12px;
  align-items:flex-start;
  transition:background-color .22s ease,transform .22s ease;
}
.mega-item:hover{background:rgba(47,224,200,.08);transform:translateX(3px);}
.mega-item strong{display:block;font-size:14px;color:var(--text-0);}
.mega-item span span{font-size:12px;color:var(--text-2);line-height:1.6;display:block;}
.mega-num{
  font-size:12px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  padding-top:2px;
  min-width:20px;
}
.mega-link{
  display:block;
  padding:10px 12px;
  border-radius:12px;
  font-size:14px;
  color:var(--text-0);
  border:1px solid transparent;
}
.mega-link span{display:block;font-size:12px;color:var(--text-2);}
.mega-link:hover{border-color:var(--line);background:rgba(47,224,200,.06);}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  color:var(--text-0);
  border-radius:12px;
  padding:9px 14px;
  font-size:14px;
}
.nav-toggle:hover{border-color:var(--brand);}
.nav-drawer{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:16px;
  margin-top:10px;
  padding:14px;
  box-shadow:var(--sh-2);
}
.nav-drawer a{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  color:var(--text-0);
  font-size:15px;
}
.nav-drawer a:hover,.nav-drawer a.active{background:rgba(47,224,200,.1);color:var(--brand);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative;z-index:1;}
.section-divide{border-top:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head p{margin:0;color:var(--text-1);}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brand);
  border:1px solid rgba(47,224,200,.3);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
  background:rgba(47,224,200,.06);
}
.glass{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  position:relative;
}
.glass::before{
  content:"";
  position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(234,242,255,.35),transparent);
  pointer-events:none;
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  background-image:linear-gradient(180deg,rgba(5,8,15,.70),rgba(5,8,15,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
  z-index:1;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:480px;height:480px;
  right:-120px;top:-160px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.28),transparent 68%);
  pointer-events:none;
}
.breadcrumb{background:transparent;padding:0;margin-bottom:22px;font-size:13px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .divider{color:var(--text-2);margin:0 8px;}
.breadcrumb .current{color:var(--text-0);}
.hero-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:48px;align-items:end;position:relative;z-index:2;}
.page-hero h1{margin-bottom:18px;}
.page-hero .lead{font-size:17px;color:var(--text-1);max-width:640px;margin:0;}
.hero-stats{display:flex;gap:32px;justify-content:flex-end;}
.hero-stats .stat{text-align:left;}
.hero-stats .stat strong{
  display:block;
  font-size:38px;
  color:var(--accent);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.hero-stats .stat span{font-size:13px;color:var(--text-2);}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:18px 22px;
  margin-top:-34px;
  position:relative;
  z-index:5;
}
.chip-row{display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  color:var(--text-1);
  border-radius:999px;
  padding:8px 18px;
  font-size:14px;
  cursor:pointer;
  transition:all .22s ease;
}
.chip:hover{border-color:var(--brand);color:var(--text-0);}
.chip.active{
  background:rgba(47,224,200,.14);
  border-color:rgba(47,224,200,.5);
  color:var(--brand);
}
.filter-right{display:flex;align-items:center;gap:12px;}
.filter-right label{font-size:13px;color:var(--text-2);}
.form-select,.form-control{
  background:rgba(16,26,44,.7);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text-0);
  font-size:14px;
  padding:9px 14px;
  font-family:var(--font-cn);
}
.form-select:focus,.form-control:focus{
  background:rgba(47,224,200,.08);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,224,200,.14);
  color:var(--text-0);
}
.form-select option{background:var(--bg-2);color:var(--text-0);}

/* ============ 特稿卡 ============ */
.feature-card{
  display:grid;
  grid-template-columns:60% 40%;
  overflow:hidden;
  margin-bottom:40px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.feature-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,200,.42);
  box-shadow:var(--sh-2),0 0 0 1px rgba(47,224,200,.28);
}
.feature-cover{overflow:hidden;display:block;}
.feature-cover img{
  width:100%;height:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .45s ease;
}
.feature-card:hover .feature-cover img{transform:scale(1.04);}
.feature-body{padding:38px 36px;display:flex;flex-direction:column;justify-content:center;}
.feature-body h3{font-size:26px;margin:14px 0 12px;}
.feature-body p{font-size:15px;color:var(--text-1);margin-bottom:20px;}
.badge-soft{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--accent);
  border:1px solid rgba(232,180,90,.35);
  background:rgba(232,180,90,.08);
  border-radius:999px;
  padding:4px 12px;
}
.badge-brand{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand);
  border:1px solid rgba(47,224,200,.35);
  background:rgba(47,224,200,.08);
  border-radius:999px;
  padding:4px 12px;
}
.meta{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.link-arrow{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.link-arrow:hover{color:var(--text-0);gap:10px;}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,200,.42);
  box-shadow:var(--sh-2),0 0 0 1px rgba(47,224,200,.28);
}
.news-cover{position:relative;overflow:hidden;display:block;}
.news-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .45s ease;
}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-cover .badge-brand{
  position:absolute;
  left:14px;top:14px;
  background:rgba(10,17,30,.78);
  backdrop-filter:blur(8px);
}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:18px;line-height:1.5;margin:0 0 10px;}
.news-body h3 a{color:var(--text-0);}
.news-body h3 a:hover{color:var(--brand);}
.news-body p{
  font-size:14px;
  color:var(--text-1);
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-2);
  border-top:1px solid var(--line);
  padding-top:14px;
  font-variant-numeric:tabular-nums;
}
.news-foot .read{color:var(--brand);font-weight:600;}
.news-foot .read:hover{color:var(--text-0);}

/* ============ 分页 ============ */
.pagination{display:flex;gap:8px;justify-content:center;margin:52px 0 0;list-style:none;padding:0;}
.pagination .page-link{
  background:rgba(255,255,255,.02);
  border:1px solid var(--line);
  color:var(--text-1);
  border-radius:10px;
  padding:9px 16px;
  font-size:14px;
  transition:all .22s ease;
}
.pagination .page-link:hover{
  border-color:var(--brand);
  color:var(--text-0);
  background:rgba(47,224,200,.08);
}
.pagination .active .page-link{
  background:rgba(47,224,200,.16);
  border-color:rgba(47,224,200,.5);
  color:var(--brand);
}
.pagination .disabled .page-link{opacity:.4;pointer-events:none;}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{padding:28px 24px;transition:transform .3s ease,border-color .3s ease;}
.step:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.4);}
.step-num{
  font-size:14px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
  margin-bottom:14px;
  display:block;
}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{font-size:14px;margin:0;color:var(--text-1);}

/* ============ FAQ ============ */
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;--bs-accordion-btn-color:var(--text-0);--bs-accordion-active-color:var(--brand);--bs-accordion-active-bg:transparent;--bs-accordion-btn-focus-box-shadow:none;}
.accordion-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px);
}
.accordion-button{
  background:transparent;
  color:var(--text-0);
  font-size:16px;
  font-weight:600;
  padding:22px 26px;
  font-family:var(--font-cn);
  position:relative;
  box-shadow:none;
}
.accordion-button:not(.collapsed){
  color:var(--brand);
  background:rgba(47,224,200,.05);
}
.accordion-button::after{
  background-image:none;
  content:"+";
  font-size:22px;
  line-height:1;
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  width:26px;height:26px;
  transform:none;
  transition:transform .25s ease;
  background-size:0;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px;}
.accordion-button::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);
  transform:scaleY(0);
  transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.accordion-body{
  padding:0 26px 24px;
  font-size:15px;
  color:var(--text-1);
  line-height:1.8;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  padding:56px;
  overflow:hidden;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";
  position:absolute;
  width:420px;height:420px;
  right:-140px;top:-180px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.26),transparent 68%);
  pointer-events:none;
}
.cta-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;position:relative;z-index:2;}
.cta-inner h2{margin-bottom:12px;}
.cta-inner p{margin:0;color:var(--text-1);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;}
.cta-note{
  width:100%;
  text-align:right;
  font-size:13px;
  color:var(--text-2);
  margin-top:6px;
  font-variant-numeric:tabular-nums;
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:24px;
  padding:72px 0 28px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  overflow:hidden;
  z-index:1;
}
.site-footer::after{
  content:"";
  position:absolute;
  width:240px;height:240px;
  left:10%;top:-120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),transparent 70%);
  pointer-events:none;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;position:relative;z-index:2;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--text-1);max-width:320px;margin-bottom:18px;}
.footer-contact{font-size:14px;color:var(--text-1);font-variant-numeric:tabular-nums;}
.footer-contact strong{color:var(--brand);font-size:18px;display:block;margin-bottom:6px;}
.footer-col h3{font-size:14px;letter-spacing:.08em;color:var(--text-2);text-transform:uppercase;margin-bottom:16px;font-weight:600;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-1);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-2);
  position:relative;
  z-index:2;
}
.footer-bottom a{color:var(--text-2);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:32px;
  display:flex;
  flex-direction:column;
  gap:12px;
  z-index:1040;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-btn{
  width:56px;
  height:56px;
  border-radius:999px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:600;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  color:var(--text-0);
  box-shadow:var(--sh-1);
  writing-mode:vertical-rl;
  letter-spacing:.08em;
  transition:all .22s ease;
}
.float-btn:hover{
  border-color:var(--brand);
  color:var(--brand);
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.float-btn.primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;
  border-color:transparent;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.float-btn.primary:hover{color:#04121A;filter:brightness(1.08);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  h1{font-size:38px;}
  h2{font-size:30px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding:72px 0;}
  .page-hero{padding:56px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;align-items:start;}
  .hero-stats{justify-content:flex-start;gap:40px;}
  .hero-stats .stat strong{font-size:30px;}
  .feature-card{grid-template-columns:1fr;}
  .feature-body{padding:28px 24px;}
  .cta-band{padding:40px 28px;}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .cta-actions{justify-content:flex-start;}
  .cta-note{text-align:left;}
  .site-header{background:var(--bg-1);border-bottom:1px solid var(--line);}
}
@media (max-width:767.98px){
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .section{padding:56px 0;}
  .container{padding-left:20px;padding-right:20px;}
  .nav-inner{height:66px;}
  .brand-mark{width:38px;height:38px;font-size:13px;}
  .brand-sub{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .filter-bar{margin-top:-24px;padding:16px;}
  .filter-right{width:100%;justify-content:space-between;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .float-cta{
    right:0;left:0;bottom:0;
    flex-direction:row;
    gap:0;
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .float-btn{
    flex:1;
    width:auto;height:56px;
    border-radius:0;
    writing-mode:horizontal-tb;
    border-left:none;border-right:none;border-bottom:none;
  }
  .float-btn:first-child{border-left:none;}
  .cta-band{border-radius:18px;padding:32px 22px;}
}
@media (max-width:575.98px){
  .hero-stats{flex-direction:column;gap:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
/* ===================== 设计变量 ===================== */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#101A2C;
  --brand:#2FE0C8;
  --brand-2:#2B6CF6;
  --accent:#E8B45A;
  --text-0:#EAF2FF;
  --text-1:#A9BAD3;
  --text-2:#6E82A0;
  --line:rgba(120,200,255,.14);
  --glass:rgba(18,28,45,.55);
  --success:#35D07F;
  --warn:#F2B544;
  --danger:#FF6B6B;
  --info:#38BDF8;

  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-1:0 8px 24px -16px rgba(0,0,0,.7);
  --shadow-2:0 20px 48px -20px rgba(0,0,0,.85);

  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-primary:var(--brand);
  --bs-border-color:var(--line);
  --bs-border-radius:16px;
  --bs-link-color:var(--text-0);
  --bs-link-hover-color:var(--brand);
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:88px;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  text-align:left;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(120,200,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--text-0);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--brand)}
p{margin:0 0 1.1em}
h1,h2,h3,h4{color:var(--text-0);font-weight:700;letter-spacing:-.02em;margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(47,224,200,.28);color:#04121A}
.num{font-variant-numeric:tabular-nums}

/* ===================== 容器与通用 ===================== */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.section{padding:96px 0;border-top:1px solid var(--line)}
.section-alt{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:34px;line-height:1.25}
.section-head p{color:var(--text-2);font-size:15px;margin:10px 0 0;max-width:640px}
.text-link{color:var(--brand);font-size:14px;letter-spacing:.02em;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--brand);filter:brightness(1.1)}
.divider{height:1px;background:var(--line);border:0;margin:0}
.glass{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.glass::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,.55),rgba(255,255,255,0));
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;
  color:var(--brand);
  background:rgba(47,224,200,.10);
  border:1px solid rgba(47,224,200,.30);
}
.badge-line{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;color:var(--text-1);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.badge-gold{color:var(--accent);border-color:rgba(232,180,90,.35);background:rgba(232,180,90,.08)}

/* ===================== 按钮 ===================== */
.btn{
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  padding:.72rem 1.4rem;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-brand{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.btn-brand:hover{color:#04121A;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,224,200,.45),0 18px 40px -14px rgba(47,224,200,.72)}
.btn-brand:active{transform:translateY(-1px);filter:brightness(.98)}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line);
  color:var(--text-0);
}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);background:rgba(47,224,200,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-sm{padding:.5rem 1rem;font-size:13.5px;border-radius:10px}

/* ===================== 表单 ===================== */
.form-control,.form-select{
  background:rgba(16,26,44,.7);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text-0);
  padding:.72rem .95rem;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.form-control::placeholder{color:var(--text-2)}
.form-control:focus,.form-select:focus{
  background:rgba(47,224,200,.08);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,224,200,.14);
  color:var(--text-0);
}
.form-label{font-size:13px;color:var(--text-2);margin-bottom:6px;letter-spacing:.02em}
.invalid-feedback{color:var(--danger);font-size:13px}

/* ===================== 导航 ===================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  padding:14px 0;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .28s ease,border-color .28s ease,padding .28s ease,backdrop-filter .28s ease;
}
.site-header.is-stuck{
  background:rgba(10,17,30,.94);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
  padding:10px 0;
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
}
.nav-inner{display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-0);margin-right:auto}
.brand:hover{color:var(--text-0)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(47,224,200,.22),rgba(43,108,246,.30));
  border:1px solid rgba(47,224,200,.42);
  color:var(--brand);
  font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:0 0 22px -8px rgba(47,224,200,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16.5px;font-weight:700;color:var(--text-0)}
.brand-sub{font-size:11px;color:var(--text-2);letter-spacing:.16em;text-transform:uppercase}
.nav-main ul{display:flex;align-items:center;gap:6px}
.nav-main ul li a{
  display:block;
  padding:9px 14px;
  font-size:15px;
  color:var(--text-1);
  border-radius:10px;
  position:relative;
}
.nav-main ul li a:hover{color:var(--text-0);background:rgba(47,224,200,.08)}
.nav-main ul li a.active{color:var(--brand)}
.nav-main ul li a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
  box-shadow:0 0 12px rgba(47,224,200,.8);
}
.nav-right{display:flex;align-items:center;gap:12px}
.dropdown-toggle::after{margin-left:6px;vertical-align:2px}
.dropdown-menu{
  background:rgba(12,20,34,.96);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-2);
  color:var(--text-1);
  padding:0;
}
.dropdown-menu.mega{
  width:780px;padding:24px;
  margin-top:12px;
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  position:absolute;
}
.dropdown-menu.mega::before{
  content:"";position:absolute;left:18px;right:18px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(43,108,246,0));
}
.mega-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:22px}
.mega-col + .mega-col{border-left:1px solid var(--line);padding-left:22px}
.mega-title{font-size:12px;letter-spacing:.12em;color:var(--text-2);margin-bottom:14px;text-transform:uppercase}
.mega-item{display:flex;gap:12px;padding:10px;border-radius:12px;transition:background-color .2s ease}
.mega-item:hover{background:rgba(47,224,200,.08)}
.mega-num{font-size:12px;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:3px}
.mega-item strong{display:block;color:var(--text-0);font-size:14.5px;font-weight:600}
.mega-item span span{display:block;color:var(--text-2);font-size:12px;line-height:1.6}
.mega-post{display:block;padding:9px 10px;border-radius:12px}
.mega-post:hover{background:rgba(47,224,200,.08)}
.mega-post-t{display:block;font-size:14px;color:var(--text-0);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega-post-d{display:block;font-size:12px;color:var(--text-2);font-variant-numeric:tabular-nums}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:40px;padding:0 10px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:10px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text-0)}
.mobile-nav{
  margin-top:12px;padding:14px;
  background:rgba(12,20,34,.98);
  border:1px solid var(--line);
  border-radius:var(--r-card);
}
.mobile-nav a{display:block;padding:11px 12px;border-radius:10px;color:var(--text-1);font-size:15px}
.mobile-nav a:hover{background:rgba(47,224,200,.08);color:var(--brand)}
.mobile-nav .mobile-title{font-size:12px;letter-spacing:.12em;color:var(--text-2);padding:12px 12px 6px;text-transform:uppercase}

/* ===================== 文章页头 ===================== */
.article-hero{
  position:relative;
  padding:56px 0 44px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(5,8,15,.70),rgba(5,8,15,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-140px;top:-140px;
  width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.20),rgba(47,224,200,0) 70%);
  pointer-events:none;
}
.crumb{font-size:13px;color:var(--text-2);margin-bottom:20px}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px;min-width:0}
.crumb li + li::before{content:"/";color:rgba(110,130,160,.6)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb-current{color:var(--text-1);max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-title{
  font-size:42px;line-height:1.22;
  max-width:900px;
  margin-bottom:20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--text-2);
  padding-top:18px;
  border-top:1px solid var(--line);
  max-width:900px;
}
.article-meta .dot{color:rgba(110,130,160,.55)}
.article-meta .num{font-variant-numeric:tabular-nums}

/* ===================== 封面 ===================== */
.article-cover{padding:44px 0 0}
.article-cover figure{margin:0}
.article-cover .cover-box{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  background:var(--bg-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{margin-top:12px;font-size:12px;color:var(--text-2);letter-spacing:.02em}

/* ===================== 正文布局 ===================== */
.article-main{padding:56px 0 96px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:56px;align-items:start}
.article-body-wrap{min-width:0}
.article-body{
  max-width:800px;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;
  font-size:26px;line-height:1.35;
  margin:2.2em 0 1em;
  padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;
  width:3px;height:18px;border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(47,224,200,.7);
}
.article-body h3{font-size:20px;margin:1.8em 0 .8em;color:var(--text-0)}
.article-body h4{font-size:17px;margin:1.5em 0 .6em;color:var(--text-0)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(47,224,200,.35)}
.article-body a:hover{color:var(--brand-2);border-bottom-color:rgba(43,108,246,.5)}
.article-body strong{color:var(--text-0)}
.article-body ul{margin:0 0 1.1em;padding-left:1.2em}
.article-body ul li{position:relative;margin:.45em 0}
.article-body ul li::before{
  content:"";position:absolute;left:-1.05em;top:.72em;
  width:6px;height:6px;border-radius:1px;background:var(--brand);
}
.article-body ol{margin:0 0 1.1em;padding-left:1.4em;list-style:decimal}
.article-body ol li{margin:.45em 0}
.article-body ol li::marker{color:var(--brand)}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  border-radius:12px;
  color:var(--text-0);
  font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;border-radius:12px;
  border:1px solid var(--line);
  margin:1.6em 0 .8em;
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:12px;color:var(--text-2);text-align:left}
.article-body table{
  width:100%;
  margin:1.6em 0;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  font-size:14.5px;
}
.article-body table th{
  background:rgba(16,26,44,.9);
  color:var(--text-0);
  font-weight:600;
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-body table td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  color:var(--text-1);
  font-variant-numeric:tabular-nums;
}
.article-body table tr:last-child td{border-bottom:0}
.article-body pre{
  margin:1.6em 0;
  padding:18px 20px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:12px;
  overflow-x:auto;
  font-size:13.5px;
  line-height:1.7;
  color:#CFE4FF;
}
.article-body code{
  background:rgba(47,224,200,.10);
  color:var(--brand);
  padding:2px 6px;
  border-radius:6px;
  font-size:13.5px;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}

/* 空态 */
.empty-state{text-align:center;padding:72px 20px}
.empty-state svg{margin:0 auto 18px;display:block}
.empty-state p{color:var(--text-2);margin-bottom:22px}

/* ===================== 标签与分享 ===================== */
.article-foot{
  max-width:800px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag-list a{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  font-size:13px;color:var(--text-1);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.tag-list a:hover{color:var(--brand);border-color:rgba(47,224,200,.4);background:rgba(47,224,200,.08)}
.share-row{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-2)}
.share-row a{display:inline-flex;color:var(--text-2)}
.share-row a:hover{color:var(--brand)}

/* ===================== 侧栏 ===================== */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.side-card{padding:22px}
.side-card h3{font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.side-list li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--text-2);padding:8px 0;border-bottom:1px dashed rgba(120,200,255,.12)}
.side-list li:last-child{border-bottom:0}
.side-list li strong{color:var(--text-1);font-weight:500;text-align:right}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 12px;border-radius:10px;
  font-size:14px;color:var(--text-1);
}
.side-links a:hover{background:rgba(47,224,200,.08);color:var(--brand)}
.side-cta{background:linear-gradient(160deg,rgba(47,224,200,.14),rgba(16,26,44,.7));padding:24px}
.side-cta p{font-size:13.5px;color:var(--text-1);margin:10px 0 18px}

/* ===================== 相关推荐 ===================== */
.related{padding:96px 0;border-top:1px solid var(--line);background:var(--bg-1)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-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);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.4);box-shadow:var(--shadow-2)}
.post-thumb{position:relative;overflow:hidden;background:var(--bg-2)}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-thumb .badge-soft{position:absolute;left:14px;top:14px;background:rgba(5,8,15,.72)}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14px;color:var(--text-2);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-2);border-top:1px solid var(--line);padding-top:14px}
.post-foot .arrow{color:var(--brand)}
.post-card:hover h3{color:var(--brand)}

/* ===================== 底部转化 ===================== */
.cta-band{padding:96px 0;border-top:1px solid var(--line);position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;left:-160px;bottom:-180px;
  width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),rgba(47,224,200,0) 70%);
  pointer-events:none;
}
.cta-box{
  padding:48px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;
}
.cta-box h2{font-size:32px;line-height:1.3;margin-bottom:14px}
.cta-box p{color:var(--text-1);font-size:15px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.cta-tel{display:flex;align-items:baseline;gap:10px;margin-top:24px;font-size:13px;color:var(--text-2)}
.cta-tel strong{font-size:22px;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cta-form{display:grid;gap:14px}
.cta-form .btn{width:100%}
.form-note{font-size:12px;color:var(--text-2);text-align:center;margin:0}

/* ===================== 页脚 ===================== */
.site-footer{
  position:relative;
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:72px 0 28px;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;right:-60px;top:-120px;
  width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),rgba(47,224,200,0) 70%);
  pointer-events:none;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{font-size:14px;color:var(--text-2);margin:18px 0 20px;max-width:340px}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--text-2);padding:5px 0}
.footer-contact li strong{color:var(--text-0);font-weight:600;font-variant-numeric:tabular-nums}
.footer-col h3{font-size:14px;letter-spacing:.04em;margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:var(--text-2)}
.footer-col ul li a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:52px;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-2);
}
.footer-bottom .num{font-variant-numeric:tabular-nums}

/* ===================== 浮动 CTA ===================== */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:1050;
  display:flex;flex-direction:column;gap:10px;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:56px;height:52px;padding:0 18px;
  border-radius:999px;
  font-size:14px;font-weight:600;
  border:1px solid var(--line);
  background:rgba(12,20,34,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  color:var(--text-0);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,color .2s ease,background-color .2s ease;
}
.float-btn:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand)}
.float-main{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;border-color:transparent;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 14px 32px -14px rgba(47,224,200,.6);
}
.float-main:hover{color:#04121A;filter:brightness(1.06)}

/* ===================== 响应式 ===================== */
@media (max-width:1399.98px){
  .container{padding:0 28px}
}
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:40px}
  .article-title{font-size:38px}
  .cta-box{padding:40px;gap:32px}
}
@media (max-width:991.98px){
  body{padding-top:82px}
  .container{padding:0 24px}
  .section,.related,.cta-band{padding:72px 0}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;top:auto}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section-head h2{font-size:28px}
  .article-title{font-size:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .cta-box{grid-template-columns:1fr;padding:36px}
}
@media (max-width:767.98px){
  .section,.related,.cta-band{padding:56px 0}
  .container{padding:0 20px}
  .article-hero{padding:36px 0 30px}
  .article-title{font-size:27px}
  .article-body h2{font-size:22px}
  .article-body{font-size:15.5px}
  .article-cover{padding-top:28px}
  .article-main{padding:36px 0 56px}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:28px}
  .section-head h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .cta-box h2{font-size:24px}
  .float-cta{
    left:0;right:0;bottom:0;
    flex-direction:row;gap:0;
    transform:translateY(100%);
    border-top:1px solid var(--line);
    background:rgba(10,17,30,.96);
    padding:8px 12px calc(8px + env(safe-area-inset-bottom));
  }
  .float-cta.is-visible{transform:translateY(0)}
  .float-btn{flex:1;height:44px;border-radius:12px;min-width:0}
}
@media (max-width:575.98px){
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .article-title{font-size:24px}
  .brand-sub{display:none}
  .cta-box{padding:26px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#101A2C;
  --brand:#2FE0C8;
  --brand-2:#2B6CF6;
  --accent:#E8B45A;
  --text-0:#EAF2FF;
  --text-1:#A9BAD3;
  --text-2:#6E82A0;
  --line:rgba(120,200,255,.14);
  --glass:rgba(18,28,45,.55);
  --success:#35D07F;
  --warn:#F2B544;
  --danger:#FF6B6B;
  --info:#38BDF8;
  --r-card:16px;
  --r-btn:12px;
  --r-in:10px;
  --shadow-1:0 8px 24px -16px rgba(0,0,0,.7);
  --shadow-2:0 20px 48px -20px rgba(0,0,0,.85);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-bg:#05080F;
  --bs-body-color:#A9BAD3;
  --bs-primary:#2FE0C8;
  --bs-border-color:rgba(120,200,255,.14);
  --bs-border-radius:16px;
  --bs-link-color:#A9BAD3;
  --bs-link-hover-color:#2FE0C8;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(120,200,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
  opacity:.5;
}
img{max-width:100%;display:block;}
a{color:var(--text-1);text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{color:var(--text-0);font-weight:700;letter-spacing:-.02em;margin:0 0 .6em;line-height:1.25;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{list-style:none;margin:0;padding:0;}
em{font-style:normal;}
::selection{background:rgba(47,224,200,.28);color:#fff;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{max-width:1240px;padding:0 32px;margin:0 auto;position:relative;z-index:1;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:var(--bg-1);
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px -24px rgba(0,0,0,.9);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-0);}
.brand:hover{color:var(--text-0);}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:12px;
  font-weight:800;
  font-size:15px;
  letter-spacing:.04em;
  color:#04121A;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 28px -14px rgba(47,224,200,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-0);}
.brand-sub{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-2);}
.nav-main ul{display:flex;align-items:center;gap:6px;}
.nav-main ul li a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-1);
  border-radius:10px;
}
.nav-main ul li a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  opacity:0;
  transition:opacity .22s ease;
  box-shadow:0 0 12px rgba(47,224,200,.7);
}
.nav-main ul li a:hover{color:var(--text-0);background:rgba(47,224,200,.07);}
.nav-main ul li a.active{color:var(--brand);}
.nav-main ul li a.active::after{opacity:1;}
.nav-right{display:flex;align-items:center;gap:12px;}

.btn{
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  padding:11px 22px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background-color .22s ease,border-color .22s ease,color .22s ease,filter .2s ease;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.btn-glow:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04121A;box-shadow:0 0 0 1px rgba(47,224,200,.45),0 16px 40px -12px rgba(47,224,200,.7);}
.btn-glow:active{transform:translateY(-1px);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text-0);
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(47,224,200,.08);color:var(--text-0);}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-lg{padding:14px 30px;font-size:16px;}
.nav-right .dropdown-toggle::after{margin-left:8px;}

.mega{
  width:760px;
  padding:22px;
  margin-top:12px !important;
  background:rgba(10,17,30,.94);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-top:2px solid transparent;
  border-image:linear-gradient(90deg,var(--brand),var(--brand-2)) 1;
  border-radius:16px;
  box-shadow:var(--shadow-2);
}
.mega-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;}
.mega-title{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);margin-bottom:12px;}
.mega-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 12px;
  border-radius:12px;
  color:var(--text-1);
}
.mega-item:hover{background:rgba(47,224,200,.08);color:var(--text-0);}
.mega-num{
  font-size:12px;font-variant-numeric:tabular-nums;
  color:var(--accent);
  padding-top:2px;
}
.mega-item strong{display:block;color:var(--text-0);font-size:14px;font-weight:600;}
.mega-item span span{display:block;font-size:12px;color:var(--text-2);line-height:1.6;}
.mega-entry{
  display:block;padding:12px;border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  margin-bottom:10px;
}
.mega-entry:hover{border-color:var(--brand);}
.mega-entry strong{display:block;color:var(--text-0);font-size:14px;}
.mega-entry span{font-size:12px;color:var(--text-2);}

/* 移动端抽屉 */
.offcanvas{background:var(--bg-1);color:var(--text-1);border-right:1px solid var(--line);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{color:var(--text-0);font-size:16px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  color:var(--text-1);font-size:15px;
}
.drawer-link.active{color:var(--brand);}
.nav-toggle{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-0);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:96px 0 88px;
  background-color:var(--bg-0);
  background-image:linear-gradient(180deg,rgba(5,8,15,.70),rgba(5,8,15,.94)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-140px;right:-60px;
  width:480px;height:480px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.20),rgba(47,224,200,0) 70%);
  pointer-events:none;
  animation:glowFloat 14s ease-in-out infinite;
}
@keyframes glowFloat{
  0%,100%{transform:translate3d(0,0,0);}
  50%{transform:translate3d(-24px,26px,0);}
}
.hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:56px;align-items:end;}
.breadcrumb{background:none;padding:0;margin:0 0 18px;font-size:13px;}
.breadcrumb-item+.breadcrumb-item::before{color:var(--text-2);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .active{color:var(--text-1);}
.page-hero h1{font-size:48px;line-height:1.15;margin-bottom:18px;}
.page-hero h1 span{
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{font-size:17px;color:var(--text-1);max-width:620px;}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.stat-box{
  padding:20px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-1);
  position:relative;
  overflow:hidden;
}
.stat-box::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,.7),rgba(47,224,200,0));
}
.stat-num{
  display:block;
  font-size:32px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-num em{font-size:14px;color:var(--text-1);margin-left:4px;font-weight:500;}
.stat-label{font-size:13px;color:var(--text-2);}

/* ---------- 筛选条 ---------- */
.filter-bar{
  position:sticky;
  top:72px;
  z-index:1020;
  background:rgba(10,17,30,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.filter-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
  flex-wrap:wrap;
}
.chips{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;}
.chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  padding:8px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  font-size:14px;
  white-space:nowrap;
}
.chip:hover{border-color:var(--brand);color:var(--text-0);}
.chip.active{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border-color:transparent;
  color:#04121A;
  font-weight:600;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 10px 26px -14px rgba(47,224,200,.6);
}
.filter-right{display:flex;align-items:center;gap:12px;}
.form-select, .form-control{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-in);
  color:var(--text-0);
  font-size:14px;
  padding:9px 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.form-select:focus,.form-control:focus{
  background:rgba(47,224,200,.08);
  border-color:var(--brand);
  color:var(--text-0);
  box-shadow:0 0 0 3px rgba(47,224,200,.16);
}
.form-select option{background:var(--bg-1);color:var(--text-0);}
.result-count{font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;position:relative;z-index:1;}
.section + .section{border-top:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--brand);
  border:1px solid rgba(47,224,200,.35);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.section-head h2{font-size:34px;margin-bottom:14px;}
.section-head p{color:var(--text-1);}

/* ---------- 卡片网格（纯网格） ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.grid-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  position:relative;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.grid-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  opacity:.75;
}
.grid-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,200,.5);
  box-shadow:var(--shadow-2),0 0 0 1px rgba(47,224,200,.28);
}
.grid-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-2);}
.grid-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.grid-card:hover .grid-thumb img{transform:scale(1.04);}
.thumb-fade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,0) 45%,rgba(5,8,15,.78) 100%);
}
.badge-cat{
  position:absolute;left:14px;top:14px;
  font-size:12px;
  letter-spacing:.04em;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(5,8,15,.68);
  border:1px solid var(--line);
  color:var(--brand);
  backdrop-filter:blur(8px);
}
.grid-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.grid-body h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.grid-card:hover h3{color:var(--brand);}
.grid-body p{
  font-size:14px;
  color:var(--text-1);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:18px;
}
.grid-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.grid-meta .read{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);}
.grid-card:hover .read{color:var(--brand);}
.read i{transition:transform .28s ease;}
.grid-card:hover .read i{transform:translateX(4px);}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.flow-item{
  padding:26px 22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-1);
  position:relative;
  transition:border-color .25s ease,transform .25s ease,background-color .25s ease;
}
.flow-item:hover{border-color:rgba(47,224,200,.45);transform:translateY(-3px);background:var(--bg-2);}
.flow-num{
  font-size:13px;
  font-variant-numeric:tabular-nums;
  color:var(--accent);
  letter-spacing:.08em;
  margin-bottom:14px;
  display:block;
}
.flow-item h3{font-size:17px;margin-bottom:10px;}
.flow-item p{font-size:14px;color:var(--text-1);}
.flow-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(47,224,200,.08);
  color:var(--brand);
  margin-bottom:16px;
  font-size:18px;
}

/* ---------- 适用对象 ---------- */
.scene-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.scene-item{
  display:flex;gap:14px;
  padding:20px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
}
.scene-item i{color:var(--brand);font-size:18px;margin-top:4px;}
.scene-item h3{font-size:16px;margin-bottom:6px;}
.scene-item p{font-size:13px;color:var(--text-1);}

/* ---------- FAQ ---------- */
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-btn-focus-box-shadow:none;}
.accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.accordion-button{
  background:transparent;
  color:var(--text-0);
  font-size:17px;
  font-weight:600;
  padding:22px 46px 22px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  box-shadow:none;
  position:relative;
  transition:color .22s ease;
}
.accordion-button::after{display:none;}
.accordion-button:hover{color:var(--brand);}
.accordion-button:not(.collapsed){color:var(--brand);background:rgba(47,224,200,.05);}
.accordion-button:not(.collapsed)::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  border-radius:3px;
  background:var(--brand);
  box-shadow:0 0 14px rgba(47,224,200,.8);
}
.accordion-button:focus{box-shadow:none;}
.plus{
  position:absolute;
  right:16px;top:50%;
  width:18px;height:18px;
  transform:translateY(-50%);
  flex:0 0 18px;
}
.plus::before,.plus::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform .28s ease;
}
.plus::before{left:0;top:8px;width:18px;height:2px;}
.plus::after{left:8px;top:0;width:2px;height:18px;}
.accordion-button:not(.collapsed) .plus::after{transform:rotate(45deg);}
.accordion-button:not(.collapsed) .plus::before{transform:rotate(45deg);}
.accordion-body{padding:0 46px 24px 18px;font-size:15px;color:var(--text-1);}

/* ---------- 分页 ---------- */
.pagination-wrap{display:flex;justify-content:center;margin-top:52px;}
.pagination{gap:8px;margin:0;}
.page-link{
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-1);
  border-radius:10px;
  min-width:42px;
  text-align:center;
  font-size:14px;
  padding:9px 12px;
  font-variant-numeric:tabular-nums;
  transition:all .22s ease;
}
.page-link:hover{background:rgba(47,224,200,.08);border-color:var(--brand);color:var(--brand);}
.page-item.active .page-link{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border-color:transparent;
  color:#04121A;
  font-weight:700;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 10px 26px -14px rgba(47,224,200,.6);
}
.page-item.disabled .page-link{opacity:.4;background:var(--bg-1);color:var(--text-2);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  padding:88px 0;
  border-top:1px solid var(--line);
  background:var(--bg-1);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  left:-120px;bottom:-180px;
  width:480px;height:480px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),rgba(47,224,200,0) 70%);
  pointer-events:none;
}
.cta-panel{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:48px;
  padding:44px;
  border-radius:22px;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-2);
  position:relative;
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,.8),rgba(47,224,200,0));
}
.cta-panel h2{font-size:30px;margin-bottom:14px;}
.cta-panel p{font-size:15px;}
.cta-actions{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap;}
.cta-phone{
  display:inline-flex;align-items:center;gap:10px;
  margin-top:22px;
  font-size:19px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.cta-phone i{color:var(--brand);}
.form-label{font-size:13px;color:var(--text-1);margin-bottom:6px;}
.form-note{font-size:12px;color:var(--text-2);margin-top:10px;}

/* ---------- 页脚 ---------- */
footer{
  position:relative;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  overflow:hidden;
}
footer::before{
  content:"";
  position:absolute;
  left:50%;top:-120px;
  transform:translateX(-50%);
  width:240px;height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),rgba(47,224,200,0) 70%);
  pointer-events:none;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:38px;height:38px;font-size:13px;}
.footer-brand strong{color:var(--text-0);font-size:16px;}
.footer-desc{font-size:13px;color:var(--text-1);max-width:320px;margin-bottom:18px;}
.footer-contact li{font-size:13px;color:var(--text-2);margin-bottom:8px;display:flex;gap:8px;align-items:center;}
.footer-contact i{color:var(--brand);width:16px;}
.footer-title{font-size:14px;color:var(--text-0);font-weight:700;margin-bottom:18px;}
.footer-list li{margin-bottom:11px;}
.footer-list a{font-size:13px;color:var(--text-1);}
.footer-list a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--text-2);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:32px;
  z-index:1040;
  display:flex;
  flex-direction:column;
  gap:12px;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-btn{
  width:52px;height:52px;
  display:grid;place-items:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(10,17,30,.9);
  backdrop-filter:blur(12px);
  color:var(--text-0);
  font-size:18px;
  box-shadow:var(--shadow-1);
  transition:all .22s ease;
}
.float-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.float-btn.primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121A;
  border-color:transparent;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.float-btn.primary:hover{color:#04121A;filter:brightness(1.08);}
.float-label{
  position:absolute;
  right:64px;
  white-space:nowrap;
  font-size:13px;
  padding:6px 12px;
  border-radius:8px;
  background:rgba(10,17,30,.95);
  border:1px solid var(--line);
  color:var(--text-0);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
}
.float-btn:hover .float-label{opacity:1;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-main ul li a{padding:10px 10px;font-size:14px;}
  .mega{width:640px;}
}
@media (max-width:991.98px){
  .container{padding:0 24px;}
  .page-hero{padding:72px 0 64px;}
  .page-hero h1{font-size:34px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;align-items:start;}
  .section{padding:72px 0;}
  .section-head h2{font-size:26px;}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .scene-list{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .filter-bar{top:64px;}
  .accordion-button{font-size:16px;}
}
@media (max-width:575.98px){
  .container{padding:0 20px;}
  body{font-size:15px;}
  .page-hero{padding:56px 0 52px;}
  .page-hero h1{font-size:30px;}
  .hero-lead{font-size:15px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-num{font-size:26px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .flow-grid{grid-template-columns:1fr;}
  .cta-panel{padding:24px;border-radius:18px;}
  .cta-panel h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .float-cta{
    left:0;right:0;bottom:0;
    flex-direction:row;
    padding:0;
    gap:0;
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .float-btn{
    flex:1;
    width:auto;height:56px;
    border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    background:rgba(10,17,30,.96);
    font-size:15px;
  }
  .float-btn.primary{
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
  }
  .float-label{display:none;}
  .footer-bottom{padding-bottom:72px;}
  .pagination{gap:6px;}
  .page-link{min-width:38px;padding:8px 10px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .site-header{backdrop-filter:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05080F; --bg-1:#0A111E; --bg-2:#101A2C;
  --brand:#2FE0C8; --brand-2:#2B6CF6; --accent:#E8B45A;
  --text-0:#EAF2FF; --text-1:#A9BAD3; --text-2:#6E82A0;
  --line:rgba(120,200,255,.14); --glass:rgba(18,28,45,.55);
  --success:#35D07F; --warn:#F2B544; --danger:#FF6B6B; --info:#38BDF8;
  --r-card:16px; --r-btn:12px; --r-input:10px;
  --sh-quiet:0 8px 24px -16px rgba(0,0,0,.7);
  --sh-hover:0 20px 48px -20px rgba(0,0,0,.85), 0 0 0 1px rgba(47,224,200,.28);
  --bs-body-bg:var(--bg-0); --bs-body-color:var(--text-1);
  --bs-primary:var(--brand); --bs-border-color:var(--line);
  --bs-border-radius:var(--r-card); --bs-link-color:var(--text-0);
  --bs-link-hover-color:var(--brand); --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;text-align:left;
  font-variant-numeric:tabular-nums;
  background-image:linear-gradient(rgba(120,200,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--text-0);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{color:var(--text-0);font-weight:700;letter-spacing:-.02em;margin:0 0 .6em;}
h1{font-size:48px;line-height:1.15;}
h2{font-size:34px;line-height:1.25;}
h3{font-size:22px;line-height:1.4;}
p{margin:0 0 1.1em;}
ul{list-style:none;padding:0;margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,224,200,.28);color:#fff;}

.container{max-width:1240px;padding-left:32px;padding-right:32px;margin:0 auto;}
.section{padding:104px 0;border-top:1px solid var(--line);position:relative;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);border:1px solid rgba(47,224,200,.32);border-radius:999px;
  padding:5px 14px;margin-bottom:18px;background:rgba(47,224,200,.06);
}
.lead{color:var(--text-1);font-size:16px;max-width:700px;}
.muted{color:var(--text-2);font-size:14px;}

/* 按钮 */
.btn{
  border-radius:var(--r-btn);font-weight:600;font-size:15px;line-height:1;
  padding:13px 24px;border:1px solid transparent;letter-spacing:.01em;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
}
.btn-glow{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04121A;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.btn-glow:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04121A;
  box-shadow:0 0 0 1px rgba(47,224,200,.48),0 16px 42px -12px rgba(47,224,200,.72);}
.btn-glow:active{transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.02);border:1px solid var(--line);color:var(--text-0);}
.btn-ghost:hover{border-color:var(--brand);background:rgba(47,224,200,.08);color:var(--text-0);transform:translateY(-2px);}
.btn-sm{padding:8px 15px;font-size:13px;border-radius:10px;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;transition:background .3s ease,border-color .3s ease;
}
.site-header.scrolled{background:var(--bg-1);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:76px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(47,224,200,.9),rgba(43,108,246,.9));
  color:#04121A;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 10px 26px -14px rgba(47,224,200,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{color:var(--text-0);font-weight:700;font-size:17px;letter-spacing:-.01em;}
.brand-sub{color:var(--text-2);font-size:11px;letter-spacing:.14em;text-transform:uppercase;}
.nav-main{flex:1;}
.nav-main ul{display:flex;align-items:center;gap:6px;}
.nav-main a{
  position:relative;display:block;padding:10px 14px;font-size:15px;color:var(--text-1);border-radius:10px;
}
.nav-main a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));opacity:0;transition:opacity .22s ease;
  box-shadow:0 0 12px rgba(47,224,200,.8);
}
.nav-main a:hover{color:var(--text-0);background:rgba(120,200,255,.05);}
.nav-main a.active{color:var(--brand);}
.nav-main a.active::after{opacity:1;}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.dropdown-toggle::after{margin-left:8px;vertical-align:1px;}

/* Mega 面板 */
.dropdown-menu.mega{
  width:760px;padding:22px;margin-top:12px;border-radius:16px;
  background:rgba(10,17,30,.94);backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);border-top:2px solid rgba(47,224,200,.55);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.9);overflow:hidden;
}
.dropdown-menu.mega.show{animation:megaIn .2s ease-out;}
@keyframes megaIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}
.mega-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;}
.mega-title{font-size:12px;letter-spacing:.14em;color:var(--text-2);text-transform:uppercase;margin-bottom:12px;}
.mega-item{display:flex;gap:12px;padding:10px 12px;border-radius:12px;transition:background .2s ease,transform .2s ease;}
.mega-item:hover{background:rgba(47,224,200,.07);transform:translateX(3px);}
.mega-num{color:var(--accent);font-size:13px;font-weight:700;padding-top:2px;}
.mega-item strong{display:block;color:var(--text-0);font-size:15px;font-weight:600;}
.mega-item span span{display:block;color:var(--text-2);font-size:12px;line-height:1.6;}
.mega-post{display:block;padding:9px 12px;border-radius:10px;color:var(--text-1);font-size:14px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background .2s ease,color .2s ease;}
.mega-post:hover{background:rgba(47,224,200,.07);color:var(--text-0);}
.mega-post small{color:var(--text-2);display:block;font-size:12px;}

/* 移动导航 */
.nav-toggle{
  border:1px solid var(--line);background:rgba(255,255,255,.02);color:var(--text-0);
  border-radius:10px;padding:9px 13px;font-size:14px;
}
.mobile-nav{background:var(--bg-1);border-bottom:1px solid var(--line);}
.mobile-nav-inner{padding:16px 0 26px;display:flex;flex-direction:column;gap:4px;}
.mobile-link{display:block;padding:13px 4px;border-bottom:1px solid var(--line);color:var(--text-1);font-size:16px;}
.mobile-link.active{color:var(--brand);}
.mobile-link:hover{color:var(--brand);}

/* 分类页头 */
.page-head{
  position:relative;padding:104px 0 78px;overflow:hidden;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(5,8,15,.70),rgba(5,8,15,.94)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-head::before{
  content:"";position:absolute;width:480px;height:480px;right:-120px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.22),rgba(47,224,200,0) 68%);pointer-events:none;
}
.page-head .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:22px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb span{color:rgba(120,200,255,.35);}
.head-grid{display:grid;grid-template-columns:1.5fr .9fr;gap:48px;align-items:end;}
.page-head h1{margin-bottom:18px;}
.page-head h1 em{font-style:normal;color:var(--brand);}
.page-desc{color:var(--text-1);font-size:16px;max-width:640px;margin:0;}
.head-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.stat-card{
  background:var(--glass);backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);border-radius:14px;padding:20px 18px;
  box-shadow:var(--sh-quiet);position:relative;overflow:hidden;
}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,.7),rgba(47,224,200,0));}
.stat-num{font-size:30px;font-weight:700;color:var(--accent);letter-spacing:-.02em;line-height:1.2;}
.stat-label{font-size:13px;color:var(--text-2);}

/* 筛选条 */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-block;padding:7px 16px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);color:var(--text-1);background:rgba(255,255,255,.02);
  transition:all .22s ease;
}
.chip:hover{border-color:rgba(47,224,200,.5);color:var(--text-0);}
.chip.is-active{background:rgba(47,224,200,.14);border-color:rgba(47,224,200,.55);color:var(--brand);}
.select-wrap{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2);}
.form-select{
  background-color:rgba(16,26,44,.7);border:1px solid var(--line);color:var(--text-1);
  border-radius:var(--r-input);font-size:14px;padding:9px 34px 9px 14px;min-width:150px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%236E82A0' stroke-width='1.6' fill='none'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;
}
.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,224,200,.14);background-color:rgba(16,26,44,.9);color:var(--text-0);}
.form-select option{background:var(--bg-2);color:var(--text-0);}

/* 内容布局：清单 + 侧栏 */
.layout{padding:64px 0 96px;}
.side{position:sticky;top:104px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--glass);backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-quiet);
  position:relative;overflow:hidden;
}
.side-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,.6),rgba(47,224,200,0));}
.side-title{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-2);margin-bottom:14px;}
.side-nav a{display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-1);transition:all .2s ease;}
.side-nav a:hover{background:rgba(47,224,200,.08);color:var(--text-0);transform:translateX(3px);}
.side-nav a.on{color:var(--brand);background:rgba(47,224,200,.1);}
.rank-item{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);}
.rank-item:last-child{border-bottom:none;}
.rank-num{color:var(--accent);font-weight:700;font-size:14px;width:22px;flex-shrink:0;}
.rank-item a{font-size:14px;color:var(--text-1);line-height:1.5;}
.rank-item a:hover{color:var(--brand);}
.side-cta{background:linear-gradient(160deg,rgba(47,224,200,.12),rgba(43,108,246,.10));text-align:left;}
.side-cta h3{font-size:19px;margin-bottom:10px;}
.side-cta p{font-size:14px;color:var(--text-1);margin-bottom:18px;}
.side-cta .btn{width:100%;}

/* 案例条目 */
.case-list{display:flex;flex-direction:column;}
.case-row{
  display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);
  transition:transform .25s ease,background .25s ease;
}
.case-row:hover{transform:translateY(-4px);}
.case-thumb{
  flex:0 0 160px;width:160px;height:110px;border-radius:12px;overflow:hidden;
  border:1px solid var(--line);position:relative;
}
.case-thumb img{width:160px;height:110px;object-fit:cover;transition:transform .4s ease;}
.case-row:hover .case-thumb img{transform:scale(1.06);}
.case-body{flex:1;min-width:0;}
.badge-soft{
  display:inline-block;font-size:12px;letter-spacing:.06em;padding:4px 11px;border-radius:999px;
  color:var(--brand);background:rgba(47,224,200,.1);border:1px solid rgba(47,224,200,.28);margin-bottom:10px;
}
.badge-gold{color:var(--accent);background:rgba(232,180,90,.1);border-color:rgba(232,180,90,.3);}
.case-body h3{font-size:21px;margin-bottom:8px;line-height:1.45;}
.case-body h3 a{color:var(--text-0);}
.case-body h3 a:hover{color:var(--brand);}
.case-body p{font-size:15px;color:var(--text-1);margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.case-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--text-2);}
.case-meta b{color:var(--text-1);font-weight:500;}
.case-go{display:flex;align-items:center;gap:6px;align-self:center;color:var(--text-2);font-size:13px;flex-shrink:0;}
.case-row:hover .case-go{color:var(--brand);}

/* 数据带 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
.metric{background:var(--bg-1);padding:34px 26px;}
.metric-num{font-size:36px;font-weight:700;color:var(--accent);letter-spacing:-.02em;line-height:1.15;}
.metric-num small{font-size:16px;margin-left:3px;color:var(--accent);}
.metric-label{font-size:14px;color:var(--text-2);margin-top:6px;}

/* 行业与流程 */
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.industry{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-quiet);transition:all .25s ease;
}
.industry:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(47,224,200,.32);}
.industry h3{font-size:19px;margin-bottom:8px;}
.industry p{font-size:14px;color:var(--text-1);margin:0;}
.industry .ico{width:32px;height:32px;margin-bottom:14px;stroke:var(--brand);fill:none;stroke-width:1.6;}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.flow-item{position:relative;padding-top:26px;border-top:1px solid var(--line);}
.flow-item::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-14px;left:0;background:var(--bg-0);padding-right:12px;
  color:var(--brand);font-size:13px;letter-spacing:.1em;
}
.flow-item h3{font-size:18px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--text-1);margin:0;}

/* FAQ */
.faq .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line);}
.faq .accordion-button{
  background:transparent;color:var(--text-0);font-size:17px;font-weight:600;
  padding:22px 44px 22px 18px;box-shadow:none;border-radius:0;position:relative;line-height:1.55;
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .22s ease;box-shadow:0 0 12px rgba(47,224,200,.7);
}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:rgba(47,224,200,.04);}
.faq .accordion-button:not(.collapsed)::before{opacity:1;}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px;}
.faq .accordion-button::after{
  content:"+";background-image:none;font-size:24px;font-weight:400;color:var(--brand);
  width:auto;height:auto;line-height:1;transform:none;position:absolute;right:16px;top:22px;
  transition:transform .25s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq .accordion-body{color:var(--text-1);font-size:15px;padding:0 60px 24px 18px;}

/* 底部 CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;padding:56px 52px;
  background:linear-gradient(135deg,rgba(18,28,45,.9),rgba(10,17,30,.9));
  border:1px solid var(--line);box-shadow:var(--sh-quiet);
}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;right:-140px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.2),rgba(47,224,200,0) 70%);
}
.cta-band .inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .9fr;gap:40px;align-items:center;}
.cta-band h2{margin-bottom:12px;}
.cta-band p{color:var(--text-1);margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn{flex:1 1 auto;min-width:150px;text-align:center;}

/* 浮动 CTA */
.float-cta{position:fixed;right:20px;bottom:32px;z-index:1050;display:flex;flex-direction:column;gap:10px;
  opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .3s ease,transform .3s ease;}
.float-cta.show{opacity:1;transform:none;pointer-events:auto;}
.float-item{
  display:flex;align-items:center;justify-content:center;width:86px;height:46px;border-radius:999px;
  background:var(--glass);backdrop-filter:blur(16px);border:1px solid var(--line);
  color:var(--text-0);font-size:14px;cursor:pointer;box-shadow:var(--sh-quiet);transition:all .22s ease;
}
.float-item:hover{border-color:var(--brand);color:var(--brand);background:rgba(47,224,200,.1);}
.float-item.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04121A;border-color:transparent;font-weight:600;}
.float-item.primary:hover{filter:brightness(1.08);color:#04121A;}

/* 页脚 */
footer{position:relative;border-top:1px solid var(--line);background:var(--bg-1);overflow:hidden;}
footer::before{content:"";position:absolute;width:240px;height:240px;left:-60px;top:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),rgba(47,224,200,0) 70%);}
.foot-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:72px 0 48px;}
.foot-brand .brand{margin-bottom:18px;}
.foot-brand p{font-size:14px;color:var(--text-2);max-width:320px;}
.foot-contact{font-size:14px;color:var(--text-1);line-height:2;}
.foot-contact b{color:var(--text-0);font-weight:500;}
.foot-title{font-size:14px;color:var(--text-0);font-weight:600;margin-bottom:16px;}
.foot-col li{margin-bottom:11px;}
.foot-col a{font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:var(--text-2);position:relative;z-index:2;}

@media (max-width:1199.98px){
  h1{font-size:40px;}
  .nav-inner{gap:18px;}
  .dropdown-menu.mega{width:680px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  h1{font-size:34px;}h2{font-size:26px;}
  .page-head{padding:72px 0 56px;}
  .head-grid{grid-template-columns:1fr;gap:32px;align-items:start;}
  .nav-inner{min-height:68px;}
  .layout{padding:44px 0 72px;}
  .side{position:static;margin-bottom:36px;}
  .industry-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px 20px;}
  .cta-band{padding:40px 30px;}
  .cta-band .inner{grid-template-columns:1fr;gap:26px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;padding:56px 0 36px;}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  h1{font-size:30px;}h2{font-size:24px;}h3{font-size:20px;}
  .page-head{padding:52px 0 44px;}
  .head-stats{gap:12px;}
  .stat-num{font-size:24px;}
  .case-row{flex-direction:column;gap:14px;}
  .case-thumb,.case-thumb img{width:100%;height:180px;flex:none;}
  .case-go{display:none;}
  .industry-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .filter-bar{align-items:flex-start;flex-direction:column;}
  .faq .accordion-button{font-size:16px;padding:18px 40px 18px 16px;}
  .faq .accordion-body{padding:0 20px 20px 16px;}
  .float-cta{
    left:0;right:0;bottom:0;flex-direction:row;gap:0;transform:none;
    background:var(--bg-1);border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .float-item{flex:1;height:56px;border-radius:0;border:none;background:transparent;box-shadow:none;}
  .float-item.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));border-radius:0;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  body{padding-bottom:56px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .float-cta{transform:none;}
}

/* roulang page: category4 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#101A2C;
  --brand:#2FE0C8;
  --brand-2:#2B6CF6;
  --accent:#E8B45A;
  --text-0:#EAF2FF;
  --text-1:#A9BAD3;
  --text-2:#6E82A0;
  --line:rgba(120,200,255,.14);
  --glass:rgba(18,28,45,.55);
  --success:#35D07F;
  --warn:#F2B544;
  --danger:#FF6B6B;
  --info:#38BDF8;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 8px 24px -16px rgba(0,0,0,.7);
  --sh-2:0 20px 48px -20px rgba(0,0,0,.85),0 0 0 1px rgba(47,224,200,.28);
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-primary:var(--brand);
  --bs-primary-rgb:47,224,200;
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-card);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-2);
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  text-align:left;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.32;
  background-image:linear-gradient(rgba(120,200,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.08) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
}
h1,h2,h3,h4{color:var(--text-0);font-weight:700;letter-spacing:-.02em;margin:0}
h1{font-size:48px;line-height:1.15}
h2{font-size:34px;line-height:1.25}
h3{font-size:22px;line-height:1.4}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
a:hover{color:var(--brand-2)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num,.stat-value,.mag-num,.mega-num{font-variant-numeric:tabular-nums}
.container{max-width:1240px;padding-left:32px;padding-right:32px;position:relative;z-index:1}
main,header,footer{position:relative;z-index:1}
section{position:relative}
.section{padding:104px 0;border-top:1px solid var(--line)}
.section-tight{padding:72px 0;border-top:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:52px}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--brand);
  border:1px solid rgba(47,224,200,.32);
  background:rgba(47,224,200,.08);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:18px;
}
.lead{color:var(--text-1);font-size:16px;max-width:720px}
.muted{color:var(--text-2);font-size:14px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-solid{
  background:rgba(10,17,30,.92);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-0)}
.brand:hover{color:var(--text-0)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  font-size:15px;font-weight:800;letter-spacing:.04em;
  color:#04121A;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -16px rgba(47,224,200,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;color:var(--text-0)}
.brand-sub{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-2)}
.nav-main ul{display:flex;align-items:center;gap:6px}
.nav-main a{
  display:block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-1);
  border-radius:10px;
  position:relative;
}
.nav-main a:hover{color:var(--text-0);background:rgba(120,200,255,.07)}
.nav-main a.active{color:var(--brand)}
.nav-main a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(47,224,200,.8);
}
.nav-right{display:flex;align-items:center;gap:12px}
.btn{
  border-radius:var(--r-btn);
  font-size:14px;
  font-weight:600;
  padding:10px 20px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn:focus,.btn:active,.btn:focus-visible{box-shadow:none}
.btn-brand{
  color:#04121A;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.btn-brand:hover{color:#04121A;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,224,200,.5),0 18px 40px -14px rgba(47,224,200,.7)}
.btn-brand:active{transform:translateY(-1px)}
.btn-ghost{
  color:var(--text-0);
  background:rgba(18,28,45,.5);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{color:var(--text-0);border-color:var(--brand);background:rgba(47,224,200,.08);transform:translateY(-2px)}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-lg{padding:14px 30px;font-size:16px;border-radius:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-more::after{content:"→";transition:transform .2s ease}
.link-more:hover::after{transform:translateX(4px)}

/* Mega menu */
.dropdown-menu.mega{
  width:760px;
  padding:22px;
  border-radius:16px;
  border:1px solid var(--line);
  border-top:2px solid transparent;
  background:
    linear-gradient(var(--glass),var(--glass)) padding-box,
    linear-gradient(180deg,rgba(47,224,200,.9),rgba(43,108,246,0)) border-box;
  background-color:rgba(12,20,34,.94);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-2);
  margin-top:12px;
}
.mega-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px}
.mega-title{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);margin-bottom:12px}
.mega-item{display:flex;gap:12px;padding:10px 12px;border-radius:12px;color:var(--text-1);align-items:flex-start}
.mega-item:hover{background:rgba(47,224,200,.08);color:var(--text-0)}
.mega-num{font-size:12px;font-weight:700;color:var(--accent);padding-top:3px}
.mega-item strong{display:block;font-size:14px;font-weight:600;color:var(--text-0)}
.mega-item span span{display:block;font-size:12px;color:var(--text-2);line-height:1.6}
.mega-card{
  display:flex;gap:12px;align-items:center;
  padding:12px;border-radius:14px;
  border:1px solid var(--line);
  background:rgba(16,26,44,.6);
}
.mega-card:hover{border-color:rgba(47,224,200,.5);transform:translateY(-2px)}
.mega-card img{width:64px;height:48px;object-fit:cover;border-radius:10px}
.mega-card b{display:block;font-size:14px;color:var(--text-0)}
.mega-card i{font-style:normal;font-size:12px;color:var(--text-2)}

.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:40px;padding:0 10px;
  background:rgba(18,28,45,.6);
  border:1px solid var(--line);
  border-radius:10px;
}
.nav-toggle span{display:block;height:1.5px;background:var(--text-0);border-radius:2px}
.drawer{background:rgba(8,13,22,.98);color:var(--text-1);width:340px;border-left:1px solid var(--line)}
.drawer .offcanvas-header{border-bottom:1px solid var(--line)}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(2)}
.drawer .drawer-title{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);margin:18px 0 10px}
.drawer a.drawer-link{
  display:block;padding:12px 14px;border-radius:12px;color:var(--text-1);
  border:1px solid transparent;margin-bottom:6px;background:rgba(16,26,44,.5);
}
.drawer a.drawer-link.active{color:var(--brand);border-color:rgba(47,224,200,.4)}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:120px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(5,8,15,.70),rgba(5,8,15,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:480px;height:480px;
  right:-120px;top:-160px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.22),rgba(47,224,200,0) 68%);
  pointer-events:none;
}
.page-hero .hero-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:56px;align-items:end}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:22px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:rgba(110,130,160,.7)}
.page-hero h1{margin-bottom:18px}
.page-hero .lead{font-size:17px;max-width:640px}
.hero-stats{display:flex;gap:32px;flex-wrap:wrap;justify-content:flex-end}
.hero-stat{border-left:2px solid rgba(47,224,200,.45);padding-left:16px}
.hero-stat .stat-value{display:block;font-size:32px;font-weight:700;color:var(--accent);line-height:1.2}
.hero-stat .stat-label{font-size:13px;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;
  font-size:14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(16,26,44,.6);
  color:var(--text-1);
}
.chip:hover{color:var(--text-0);border-color:rgba(47,224,200,.5)}
.chip.active{color:#04121A;background:linear-gradient(135deg,var(--brand),var(--brand-2));border-color:transparent;font-weight:600}
.chip .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.7}
.select-wrap{display:flex;align-items:center;gap:10px}
.select-wrap label{font-size:13px;color:var(--text-2)}
.form-select{
  background-color:rgba(16,26,44,.85);
  border:1px solid var(--line);
  color:var(--text-0);
  border-radius:var(--r-input);
  font-size:14px;
  padding:9px 36px 9px 14px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' fill='none' stroke='%232FE0C8' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
}
.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,224,200,.16);background-color:rgba(16,26,44,.95)}

/* ============ 杂志式双列卡 ============ */
.mag-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;align-items:start}
.mag-card{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.mag-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,0),rgba(47,224,200,.75),rgba(47,224,200,0));
  opacity:.8;
}
.mag-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.5);box-shadow:var(--sh-2)}
.mag-media{position:relative;overflow:hidden;background:var(--bg-2)}
.mag-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.mag-card.ratio-a .mag-media{aspect-ratio:16/10}
.mag-card.ratio-b .mag-media{aspect-ratio:4/3}
.mag-card:hover .mag-media img{transform:scale(1.04)}
.mag-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.1),rgba(5,8,15,.72));
}
.mag-index{
  position:absolute;left:20px;top:16px;z-index:2;
  font-size:28px;font-weight:800;letter-spacing:-.02em;
  color:var(--accent);
  text-shadow:0 6px 24px rgba(0,0,0,.6);
}
.mag-tag{
  position:absolute;left:20px;bottom:16px;z-index:2;
  font-size:12px;letter-spacing:.06em;
  padding:5px 12px;border-radius:999px;
  color:var(--brand);
  border:1px solid rgba(47,224,200,.4);
  background:rgba(5,12,22,.72);
}
.mag-body{padding:26px 26px 28px}
.mag-body h3{font-size:21px;margin-bottom:12px}
.mag-body p{font-size:15px;color:var(--text-1);margin-bottom:16px}
.mag-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-2);border-top:1px solid var(--line);padding-top:14px}
.mag-meta .sep{color:rgba(110,130,160,.6)}
.mag-meta .link-more{margin-left:auto}
.mag-card.offset{margin-top:44px}

/* ============ 计费要素带 ============ */
.factor-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:rgba(12,20,34,.55);
}
.factor{padding:30px 26px;border-right:1px solid var(--line)}
.factor:last-child{border-right:none}
.factor .factor-k{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);margin-bottom:12px}
.factor h3{font-size:18px;margin-bottom:10px}
.factor p{font-size:14px;color:var(--text-1)}
.factor .factor-num{color:var(--accent);font-weight:700}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.flow-item{
  position:relative;
  padding:28px 24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh-1);
}
.flow-item::before{
  counter-increment:step;
  content:"0" counter(step);
  display:block;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--accent);
  margin-bottom:14px;
}
.flow-item h3{font-size:18px;margin-bottom:10px}
.flow-item p{font-size:14px;color:var(--text-1)}

/* ============ 说明双栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  overflow:hidden;
  background:var(--bg-2);
  box-shadow:var(--sh-1);
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.check-list{display:grid;gap:14px;margin-top:22px}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--text-1)}
.check-list li::before{
  content:"";flex:0 0 18px;width:18px;height:18px;margin-top:5px;
  border-radius:6px;
  border:1.5px solid var(--brand);
  background:
    linear-gradient(135deg,rgba(47,224,200,.18),rgba(47,224,200,0)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-7' fill='none' stroke='%232FE0C8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px 12px no-repeat;
}

/* ============ FAQ ============ */
.accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line)}
.accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent;
  color:var(--text-0);
  font-size:17px;
  font-weight:600;
  padding:22px 44px 22px 20px;
  box-shadow:none;
  position:relative;
  border-radius:0;
}
.accordion-button:not(.collapsed){background:rgba(47,224,200,.05);color:var(--text-0)}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(47,224,200,.6);
}
.accordion-button::after{
  position:absolute;right:16px;
  width:18px;height:18px;background-size:18px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 18 18'%3E%3Cpath d='M9 3.5v11M3.5 9h11' stroke='%232FE0C8' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  transition:transform .28s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-body{padding:0 44px 26px 20px;font-size:15px;color:var(--text-1)}

/* ============ 分页 ============ */
.pagination{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:0}
.page-link{
  min-width:44px;text-align:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(16,26,44,.6);
  color:var(--text-1);
  font-size:14px;
  padding:9px 14px;
  transition:all .2s ease;
}
.page-link:hover{border-color:rgba(47,224,200,.55);color:var(--text-0);background:rgba(47,224,200,.08)}
.page-item.active .page-link{
  color:#04121A;font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border-color:transparent;
}
.page-item.disabled .page-link{opacity:.4;background:rgba(16,26,44,.4);color:var(--text-2);border-color:var(--line)}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(18,28,45,.9),rgba(10,17,30,.85));
  padding:52px;
  box-shadow:var(--sh-1);
}
.cta-band::before{
  content:"";position:absolute;right:-100px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.22),rgba(47,224,200,0) 68%);
}
.cta-inner{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}
.cta-band h2{margin-bottom:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.form-panel{
  padding:26px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(8,14,24,.75);
  backdrop-filter:blur(18px) saturate(140%);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px}
.form-control{
  width:100%;
  background:rgba(16,26,44,.75);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text-0);
  padding:11px 14px;
  font-size:14px;
}
.form-control::placeholder{color:rgba(110,130,160,.8)}
.form-control:focus{border-color:var(--brand);background:rgba(47,224,200,.08);box-shadow:0 0 0 3px rgba(47,224,200,.14);outline:none}
.form-hint{font-size:12px;color:var(--text-2);margin-top:12px}
.form-panel .btn{width:100%;margin-top:6px}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,30,.9),rgba(5,8,15,1));
  position:relative;
  overflow:hidden;
  padding-top:72px;
}
.site-footer::before{
  content:"";position:absolute;left:-80px;top:-120px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),rgba(47,224,200,0) 70%);
  pointer-events:none;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-intro{font-size:14px;color:var(--text-1);max-width:320px;margin-bottom:18px}
.footer-contact{display:grid;gap:8px;font-size:14px;color:var(--text-1)}
.footer-contact b{color:var(--text-0);font-weight:600}
.footer-title{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-2);margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:var(--text-1);font-size:14px}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-2);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;bottom:32px;z-index:1050;
  display:flex;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateX(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:none}
.float-cta a{
  display:flex;align-items:center;gap:8px;
  padding:11px 18px;
  font-size:14px;font-weight:600;
  border-radius:999px;
  color:var(--text-0);
  border:1px solid var(--line);
  background:rgba(12,20,34,.9);
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
}
.float-cta a:hover{border-color:var(--brand);color:var(--text-0);transform:translateY(-2px)}
.float-cta a.primary{
  color:#04121A;border-color:transparent;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 12px 32px -12px rgba(47,224,200,.55);
}
.float-cta a.primary:hover{color:#04121A;filter:brightness(1.08)}
.mobile-bar{display:none}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  h1{font-size:40px}
  .page-hero .hero-grid{grid-template-columns:1.4fr 1fr;gap:36px}
  .facto-band{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .section{padding:80px 0}
  .section-tight{padding:60px 0}
  h1{font-size:34px}
  h2{font-size:27px}
  .page-hero{padding:96px 0 64px}
  .page-hero .hero-grid{grid-template-columns:1fr;align-items:start;gap:28px}
  .hero-stats{justify-content:flex-start;gap:24px}
  .split{grid-template-columns:1fr;gap:32px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .factor-band{grid-template-columns:repeat(2,1fr)}
  .factor{border-bottom:1px solid var(--line)}
  .factor:nth-child(2n){border-right:none}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-band{padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .dropdown-menu.mega{width:640px}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px}
  .section{padding:64px 0}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:20px}
  .mag-grid{grid-template-columns:1fr;gap:22px}
  .mag-card.offset{margin-top:0}
  .flow{grid-template-columns:1fr;gap:16px}
  .factor-band{grid-template-columns:1fr}
  .factor{border-right:none}
  .float-cta{display:none}
  .mobile-bar{
    display:flex;
    position:fixed;left:0;right:0;bottom:0;z-index:1050;
    height:56px;
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(8,14,24,.96);
    backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
  }
  .mobile-bar a{
    flex:1;display:flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:600;color:var(--text-0);
  }
  .mobile-bar a+a{border-left:1px solid var(--line)}
  .mobile-bar a.primary{color:#04121A;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
  body{padding-bottom:56px}
}
@media (max-width:575.98px){
  .hero-stats{gap:18px}
  .hero-stat .stat-value{font-size:26px}
  .filter-bar{padding:14px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .mag-body{padding:20px}
  .cta-band{padding:26px}
  .btn-lg{padding:12px 22px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}