/* roulang page: index */
:root{
  --bg-deep:#040912;
  --bg-main:#060d1f;
  --bg-soft:#0a1530;
  --panel-glass:rgba(255,255,255,.045);
  --panel-solid:rgba(13,24,48,.66);
  --line:rgba(125,175,255,.16);
  --line-soft:rgba(255,255,255,.08);
  --brand:#29a6ff;
  --brand-2:#65d6ff;
  --cyan:#12e7c0;
  --text:#ecf6ff;
  --text-dim:rgba(176,196,224,.74);
  --shadow-blue:0 20px 60px rgba(0,90,200,.25);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  background-color:var(--bg-main);
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:
    radial-gradient(circle at 88% 8%,rgba(30,150,255,.18),transparent 26%),
    radial-gradient(circle at 10% 36%,rgba(16,220,190,.1),transparent 28%),
    linear-gradient(rgba(122,182,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,182,255,.035) 1px,transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px;
}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease,transform .2s ease}
a:hover{color:var(--brand-2)}
img{max-width:100%;display:block;height:auto}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:100%}
button{background:none;border:0;cursor:pointer}
.grid-container{max-width:1280px}
.block{padding:100px 0}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--cyan);
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--cyan)}
.section-title{font-size:34px;line-height:1.32;font-weight:800;color:#fff;margin:10px 0 12px}
.section-desc{color:var(--text-dim);font-size:17px;max-width:840px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:42px}
.section-head.is-center{align-items:center}
.section-copy-link{flex-shrink:0}

.site-header{position:fixed;top:14px;left:0;right:0;z-index:80;padding:0 16px}
.nav-pill{
  max-width:1180px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 18px;
  background:rgba(7,13,28,.6);
  -webkit-backdrop-filter:blur(24px);
  backdrop-filter:blur(24px);
  border:1px solid rgba(125,175,255,.15);
  border-radius:60px;
  box-shadow:0 18px 50px rgba(0,10,35,.35), inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-brand{display:inline-flex;align-items:center;gap:9px;flex-shrink:0;color:#fff}
.brand-mark{
  width:34px;height:34px;
  border-radius:12px;
  background:linear-gradient(145deg,rgba(41,166,255,.24),rgba(0,80,255,.18));
  border:1px solid rgba(101,214,255,.42);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(41,166,255,.22);
}
.brand-mark svg{width:18px;height:18px;stroke:var(--brand-2)}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.01em;line-height:1.2;color:#f4f9ff}
.brand-text small{display:block;font-size:10px;font-weight:500;color:var(--text-dim);letter-spacing:.14em}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--text-dim);
  font-size:15px;
  font-weight:500;
  padding:10px 14px;
  border-radius:999px;
  position:relative;
}
.nav-link:hover{background:rgba(41,166,255,.09);color:#fff}
.nav-link.is-active{background:rgba(41,166,255,.12);color:#fff}
.nav-link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:5px;height:2px;border-radius:2px;background:var(--cyan)}
.nav-actions{margin-left:8px;display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
  color:#fff;
}
.nav-toggle:hover{border-color:rgba(101,214,255,.6)}
.burger{width:18px;height:14px;position:relative}
.burger i{position:absolute;left:0;width:18px;height:2px;border-radius:3px;background:#fff;transition:.3s}
.burger i:nth-child(1){top:0}
.burger i:nth-child(2){top:6px}
.burger i:nth-child(3){top:12px}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(1){top:6px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(3){top:6px;transform:rotate(-45deg)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  border-radius:999px;
  font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  background:rgba(255,255,255,.05);
  color:#fff;
  border:1px solid var(--line);
}
.btn svg{width:16px;height:16px;flex:none}
.btn--primary{
  background:linear-gradient(135deg,#0f93ff,#1266f6);
  border-color:transparent;
  box-shadow:0 0 0 1px rgba(255,255,255,.1) inset,0 12px 32px rgba(0,102,255,.3);
  color:#fff;
}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 44px rgba(0,122,255,.36)}
.btn--primary:active{transform:scale(.98)}
.btn--ghost{
  background:rgba(255,255,255,.06);
  border-color:rgba(125,175,255,.3);
  color:var(--brand-2);
}
.btn--ghost:hover{background:rgba(41,166,255,.1);color:#fff;border-color:rgba(101,214,255,.6)}
.btn--text{
  min-height:auto;
  background:transparent;
  border:0;
  color:var(--brand);
  padding:6px 0;
}
.btn--text svg{transition:transform .2s ease}
.btn--text:hover{color:var(--brand-2);background:transparent}
.btn--text:hover svg{transform:translateX(4px)}
.btn:focus-visible,.nav-toggle:focus-visible,.faq-toggle:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(41,166,255,.32);
}

.hero{
  position:relative;
  padding:158px 0 128px;
  border-bottom:1px solid var(--line-soft);
  background:
    linear-gradient(180deg,rgba(5,11,24,.72),rgba(7,16,32,.76) 55%,rgba(6,13,31,.9)),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.hero-copy-cell{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid rgba(101,214,255,.3);
  border-radius:999px;
  padding:6px 14px;
  color:var(--brand-2);
  font-size:13px;
  font-weight:600;
  background:rgba(41,166,255,.08);
}
.hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{
  font-size:clamp(34px,4.8vw,56px);
  line-height:1.18;
  letter-spacing:.01em;
  margin:22px 0 18px;
  max-width:780px;
  font-weight:800;
}
.hero h1 .accent{background:linear-gradient(120deg,#fff,#8fd8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{color:var(--text-dim);font-size:18px;max-width:620px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-tag{
  border:1px solid rgba(125,175,255,.18);
  background:rgba(255,255,255,.04);
  color:var(--text-dim);
  padding:6px 12px;
  border-radius:8px;
  font-size:13px;
}
.hero-tag strong{color:#fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual-cell{position:relative;min-height:500px}
.hero-stage{position:absolute;inset:0}
.hero-stage__glow{position:absolute;top:36%;left:50%;width:320px;height:320px;transform:translate(-50%,-50%);border-radius:50%;border:1px dashed rgba(101,214,255,.28);animation:hero-pulse 4s ease-in-out infinite}
@keyframes hero-pulse{0%,100%{transform:translate(-50%,-50%) scale(.96);opacity:.75}50%{transform:translate(-50%,-50%) scale(1.04);opacity:1}}
.hero-stage__glow::before{content:"";position:absolute;inset:32px;border-radius:50%;border:1px solid rgba(41,166,255,.2)}
.hero-stage__glow::after{content:"";position:absolute;inset:78px;border-radius:50%;background:radial-gradient(circle,rgba(41,166,255,.22),transparent 70%)}
.dash-card{
  position:absolute;
  width:230px;
  padding:18px;
  border-radius:18px;
  background:rgba(7,13,28,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid rgba(125,175,255,.2);
  box-shadow:0 16px 40px rgba(0,20,60,.32);
  z-index:2;
}
.dash-card .mini-label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-dim);letter-spacing:.08em;margin-bottom:8px}
.dash-card .mini-label strong{color:var(--cyan);font-weight:600}
.dash-card b{display:block;font-size:28px;color:#fff;line-height:1.2;font-weight:800}
.dash-card p{color:var(--text-dim);font-size:13px;line-height:1.6;margin-top:4px}
.dash-card--one{left:4%;top:18%}
.dash-card--two{right:0;top:45%}
.dash-card--three{left:14%;bottom:2%}
.card-line{height:3px;border-radius:3px;background:linear-gradient(90deg,var(--brand),transparent);margin-top:12px}
.hero-ornament{
  position:absolute;right:8%;top:10%;
  width:72px;height:72px;
  border-radius:22px;
  background:rgba(41,166,255,.08);
  border:1px solid rgba(101,214,255,.24);
  transform:rotate(12deg);
  z-index:1;
}
.hero-ornament svg{width:26px;height:26px;position:absolute;inset:0;margin:auto}

.metrics{padding:0 0 70px;margin-top:-54px;position:relative;z-index:5}
.metric-card{
  background:rgba(9,18,38,.86);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  border:1px solid rgba(125,175,255,.18);
  border-radius:20px;
  padding:26px 24px;
  position:relative;
  overflow:hidden;
  height:100%;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.metric-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent)}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(101,214,255,.46);box-shadow:0 20px 44px rgba(0,80,180,.24)}
.metric-icon{width:42px;height:42px;border-radius:12px;background:rgba(41,166,255,.1);border:1px solid rgba(41,166,255,.24);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.metric-icon svg{width:20px;height:20px;stroke:var(--brand-2)}
.metric-num{
  font-size:42px;
  line-height:1;
  font-weight:800;
  color:#fff;
  font-family:"DIN Alternate","Barlow Condensed","PingFang SC",sans-serif;
  letter-spacing:.02em;
}
.metric-num span{font-size:20px;color:var(--brand-2);margin-left:4px}
.metric-name{color:#fff;font-size:15px;font-weight:600;margin:8px 0 2px}
.metric-sub{color:var(--text-dim);font-size:13px;line-height:1.6}

.services-block{position:relative}
.bento-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:188px;gap:22px;margin-top:20px}
.bento-card{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  background:linear-gradient(145deg,rgba(13,24,48,.74),rgba(6,15,32,.62));
  border:1px solid rgba(125,175,255,.14);
  padding:26px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.bento-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);z-index:3}
.bento-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,12,26,.2),rgba(4,8,18,.92));z-index:1}
.bento-card:hover{transform:translateY(-4px);border-color:rgba(101,214,255,.42);box-shadow:0 20px 46px rgba(0,80,170,.3)}
.bento-card--large{grid-column:span 2;grid-row:span 2}
.bento-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34;z-index:0;transition:transform .4s ease,opacity .4s ease}
.bento-card:hover .bento-bg{transform:scale(1.03);opacity:.5}
.bento-card__body{position:relative;z-index:2}
.bento-card .card-icon{
  width:42px;height:42px;
  border-radius:12px;
  background:rgba(41,166,255,.14);
  border:1px solid rgba(41,166,255,.3);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.bento-card .card-icon svg{width:20px;height:20px;stroke:var(--brand-2)}
.bento-card h3{color:#fff;font-size:20px;font-weight:700;margin-bottom:8px}
.bento-card p{color:var(--text-dim);font-size:14px;line-height:1.65;max-width:430px}
.bento-card--large p{font-size:15px}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.card-tag{border:1px solid rgba(125,175,255,.2);background:rgba(255,255,255,.04);border-radius:7px;font-size:12px;color:var(--text-dim);padding:4px 9px}
.bento-card .btn--text{color:var(--brand-2)}

.compare-block{background:rgba(6,13,29,.45);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.compare-card{
  height:100%;
  padding:34px 30px;
  border-radius:24px;
  background:rgba(10,19,40,.72);
  border:1px solid var(--line-soft);
  position:relative;
  overflow:hidden;
}
.compare-card--bad{opacity:.78}
.compare-card--good{
  background:linear-gradient(145deg,rgba(13,30,58,.9),rgba(8,23,50,.82));
  border-color:rgba(41,166,255,.44);
  box-shadow:0 0 0 1px rgba(41,166,255,.05),0 26px 64px rgba(0,95,205,.2);
}
.compare-card__title{display:flex;align-items:center;gap:12px;font-size:19px;color:#fff;font-weight:700;margin-bottom:14px}
.compare-card__title .compare-ico{width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex:none}
.compare-card--bad .compare-ico{background:rgba(230,112,120,.1);border:1px solid rgba(230,112,120,.22)}
.compare-card--bad .compare-ico svg{stroke:#ff7a8d;width:19px;height:19px}
.compare-card--good .compare-ico{background:rgba(18,231,192,.1);border:1px solid rgba(18,231,192,.28)}
.compare-card--good .compare-ico svg{stroke:var(--cyan);width:19px;height:19px}
.compare-card p{color:var(--text-dim);font-size:15px;margin-bottom:20px}
.compare-list{padding:0}
.compare-list li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;color:var(--text-dim);font-size:15px;line-height:1.6}
.compare-list svg{width:16px;height:16px;flex:none;margin-top:6px;stroke:var(--cyan)}
.compare-card--bad .compare-list svg{stroke:#ed8f9d}
.compare-card--good .compare-list svg{stroke:var(--cyan)}

.latest-section{background:rgba(6,15,32,.55)}
.info-list{display:flex;flex-direction:column;gap:16px}
.info-item{
  display:flex;
  align-items:stretch;
  gap:18px;
  padding:18px;
  border:1px solid rgba(125,175,255,.14);
  border-radius:18px;
  background:rgba(255,255,255,.028);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.info-item:hover{background:rgba(41,166,255,.06);border-color:rgba(101,214,255,.36);transform:translateY(-2px)}
.info-item__thumb{flex:0 0 170px;border-radius:13px;overflow:hidden;background:linear-gradient(145deg,#0b1c36,#0e2b50);min-height:112px;border:1px solid var(--line-soft)}
.info-item__thumb img{width:100%;height:112px;object-fit:cover}
.info-item__content{flex:1;min-width:0}
.info-item__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:6px}
.info-item__meta .tag{display:inline-flex;color:var(--cyan);background:rgba(18,231,192,.08);border:1px solid rgba(18,231,192,.2);padding:2px 10px;border-radius:999px;font-size:12px}
.info-item__meta time{color:var(--text-dim);font-size:13px}
.info-item h4{font-size:18px;line-height:1.5;margin-bottom:6px;color:#fff;font-weight:700}
.info-item h4 a{color:#fff}
.info-item h4 a:hover{color:var(--brand-2)}
.info-item__summary{color:var(--text-dim);font-size:14px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-empty{
  border:1px dashed rgba(125,175,255,.24);
  border-radius:18px;
  padding:46px;
  text-align:center;
  color:var(--text-dim);
  font-size:15px;
  background:rgba(255,255,255,.018);
}
.hot-card{
  background:rgba(9,18,38,.7);
  border:1px solid rgba(125,175,255,.16);
  border-radius:22px;
  padding:28px;
  position:relative;
}
.hot-card::before{content:"";position:absolute;left:24px;right:24px;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.46),transparent)}
.hot-card h3{font-size:19px;color:#fff;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.hot-card h3::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--brand)}
.hot-list{counter-reset:hot}
.hot-list li{counter-increment:hot;border-bottom:1px solid rgba(255,255,255,.06);padding:14px 0}
.hot-list li:last-child{border-bottom:0}
.hot-list a{display:flex;align-items:flex-start;gap:14px;color:var(--text-dim);font-size:15px;line-height:1.6}
.hot-list a::before{content:counter(hot,decimal-leading-zero);font-size:13px;font-weight:700;color:var(--brand);opacity:.8;line-height:1.8;flex:none}
.hot-list a:hover{color:#fff}
.hot-list a span{display:block;color:var(--text-dim);font-size:12px;margin-top:2px}
.hot-footer{margin-top:18px;padding-top:14px;border-top:1px solid rgba(255,255,255,.05)}

.faq-block{background:rgba(6,15,32,.44)}
.faq-list{max-width:1080px;margin:0 auto}
.faq-item{border:1px solid rgba(125,175,255,.14);border-radius:18px;margin-bottom:14px;background:rgba(255,255,255,.028);overflow:hidden;transition:border-color .25s ease,background .25s ease}
.faq-item:hover{border-color:rgba(101,214,255,.32)}
.faq-item.is-open{background:rgba(10,24,46,.78);border-color:rgba(101,214,255,.3)}
.faq-toggle{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 20px;
  color:#fff;
  text-align:left;
}
.faq-q{
  width:26px;height:26px;
  flex:none;
  display:flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:rgba(41,166,255,.12);
  border:1px solid rgba(41,166,255,.3);
  color:var(--brand-2);
  font-size:12px;
  font-weight:700;
}
.faq-question{font-size:16px;font-weight:600;line-height:1.5;flex:1}
.faq-arrow{width:18px;height:18px;color:var(--text-dim);transition:transform .3s ease;flex:none}
.faq-arrow svg{width:18px;height:18px;display:block;stroke:currentColor;fill:none;stroke-width:1.8}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--brand)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 20px}
.faq-answer p{color:var(--text-dim);padding-bottom:20px;font-size:15px;line-height:1.8}

.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:32px;
  border:1px solid rgba(101,214,255,.28);
  background:
    radial-gradient(circle at 80% 10%,rgba(30,150,255,.18),transparent 32%),
    linear-gradient(145deg,rgba(10,27,58,.92),rgba(8,18,40,.94));
  padding:58px;
  box-shadow:var(--shadow-blue);
}
.cta-panel::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.7),transparent)}
.cta-feature h2{font-size:30px;line-height:1.36;margin:10px 0 14px}
.cta-feature p{color:var(--text-dim);font-size:16px;margin-bottom:26px}
.cta-points{display:flex;flex-direction:column;gap:16px;margin-top:12px}
.cta-points li{display:flex;align-items:flex-start;gap:12px;color:var(--text-dim);font-size:15px}
.cta-points .cta-ico{width:24px;height:24px;border-radius:8px;background:rgba(18,231,192,.1);border:1px solid rgba(18,231,192,.24);display:flex;align-items:center;justify-content:center;flex:none;margin-top:3px}
.cta-points svg{width:13px;height:13px;stroke:var(--cyan)}
.lead-form-card{
  background:rgba(3,9,22,.46);
  border:1px solid rgba(255,255,255,.06);
  border-radius:22px;
  padding:28px;
}
.lead-form-card h3{font-size:19px;color:#fff;margin-bottom:5px}
.lead-form-card>p{color:var(--text-dim);font-size:14px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;color:#dfeaff;font-size:13px;font-weight:600;margin-bottom:7px}
.form-control{
  width:100%;
  min-height:44px;
  color:#fff;
  background:rgba(0,0,0,.24);
  border:1px solid rgba(125,175,255,.18);
  border-radius:12px;
  padding:10px 14px;
  font-size:14px;
  transition:border-color .2s,box-shadow .2s;
  appearance:none;
}
.form-control:focus{border-color:rgba(101,214,255,.6);box-shadow:0 0 0 3px rgba(41,166,255,.16);outline:none}
.form-control::placeholder{color:rgba(176,196,224,.5)}
select.form-control{background-image:none}
textarea.form-control{resize:vertical;min-height:90px}
.form-note{margin-top:14px;font-size:13px;display:none}
.form-note--success{display:block;color:var(--cyan);border:1px solid rgba(18,231,192,.24);background:rgba(18,231,192,.08);border-radius:10px;padding:10px 14px}
.form-note--error{display:block;color:#ff7a8d;border:1px solid rgba(255,90,122,.26);background:rgba(255,90,122,.08);border-radius:10px;padding:10px 14px}

.site-footer{background:linear-gradient(180deg,#040912,#071126);border-top:1px solid rgba(255,255,255,.06);padding-top:76px;margin-top:70px}
.footer-brand-mark{font-size:20px;font-weight:800;color:#fff;display:flex;align-items:center;gap:8px}
.footer-brand-desc{color:var(--text-dim);font-size:14px;line-height:1.85;margin-top:16px;max-width:360px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:22px;height:2px;border-radius:2px;background:var(--brand)}
.footer-links li{margin-bottom:9px}
.footer-links a{color:var(--text-dim);font-size:14px}
.footer-links a:hover{color:var(--brand-2);padding-left:4px}
.footer-contact{color:var(--text-dim);font-size:14px;line-height:2}
.footer-contact a{color:var(--text-dim)}
.footer-contact a:hover{color:var(--brand-2)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);margin-top:50px;padding:20px 0 26px;color:rgba(176,196,224,.45);font-size:13px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.footer-bottom a{color:rgba(176,196,224,.45)}
.footer-bottom a:hover{color:var(--text)}

@media screen and (max-width:1100px){
  .nav-menu{
    display:none;
    position:absolute;
    left:16px;right:16px;top:calc(100% + 8px);
    flex-direction:column;
    align-items:stretch;
    padding:12px;
    gap:2px;
    background:rgba(7,13,28,.96);
    -webkit-backdrop-filter:blur(24px);
    backdrop-filter:blur(24px);
    border:1px solid rgba(125,175,255,.18);
    border-radius:24px;
    box-shadow:0 20px 60px rgba(0,10,35,.5);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu li{width:100%}
  .nav-link{width:100%;justify-content:space-between;padding:13px 14px}
  .nav-link.is-active::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav-pill{position:relative;max-width:780px}
  .nav-actions .btn span{display:none}
}
@media screen and (max-width:1024px){
  .block{padding:78px 0}
  .hero{padding:145px 0 100px}
  .bento-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px}
  .bento-card--large{grid-column:span 2;grid-row:span 2}
  .cta-panel{padding:38px}
  .info-item{gap:14px}
  .info-item__thumb{flex-basis:130px}
}
@media screen and (max-width:768px){
  .section-title{font-size:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px}
  .hero{padding:128px 0 70px}
  .hero h1{font-size:34px}
  .hero-desc{font-size:16px}
  .hero-visual-cell{min-height:380px;margin-top:20px}
  .dash-card{width:190px}
  .dash-card b{font-size:22px}
  .dash-card--one{left:2%;top:6%}
  .dash-card--two{right:0;top:40%}
  .dash-card--three{left:8%;bottom:-2%}
  .metrics{margin-top:-40px}
  .metric-card{padding:20px}
  .bento-grid{grid-template-columns:1fr;grid-auto-rows:auto}
  .bento-card--large{grid-column:auto;grid-row:auto}
  .bento-card{min-height:210px}
  .compare-card{margin-bottom:16px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
}
@media screen and (max-width:640px){
  .block{padding:64px 0}
  .grid-container{padding-left:16px;padding-right:16px}
  .hero{padding-top:120px}
  .hero-actions .btn{width:100%}
  .hero-visual-cell{min-height:280px}
  .dash-card{width:150px;padding:12px}
  .dash-card .mini-label{font-size:11px}
  .dash-card b{font-size:18px}
  .dash-card p{display:none}
  .card-line{display:none}
  .hero-stage__glow{display:none}
  .info-item{flex-direction:column}
  .info-item__thumb{flex:0 0 auto}
  .info-item__thumb img{width:100%;height:130px}
  .info-list{gap:12px}
  .section-title{font-size:25px}
  .cta-panel{padding:22px}
  .lead-form-card{margin-top:28px}
  .site-footer{padding-top:50px}
  .footer-bottom{font-size:12px}
}

/* roulang page: article */
:root {
    --bg-deep: #060D1F;
    --bg-dark: #040912;
    --panel: #0A1530;
    --glass: rgba(255, 255, 255, .045);
    --glass-strong: rgba(13, 24, 48, .72);
    --line: rgba(125, 175, 255, .16);
    --line-soft: rgba(255, 255, 255, .08);
    --blue: #29A6FF;
    --cyan: #65D6FF;
    --mint: #12E7C0;
    --danger: #FF5C7A;
    --text: rgba(236, 246, 255, .92);
    --text-body: rgba(210, 228, 248, .82);
    --text-muted: rgba(176, 196, 224, .72);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow: 0 20px 70px rgba(0, 90, 200, .28);
    --shadow-sm: 0 8px 30px rgba(0, 0, 0, .28);
    --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
    --font-num: "Rajdhani", "DIN Alternate", "Barlow Condensed", sans-serif;
    --max-width: 1200px;
    --space-section: 96px;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
    background-color: var(--bg-deep);
    background-image:
        radial-gradient(circle at 82% -8%, rgba(30, 150, 255, .12), transparent 46%),
        radial-gradient(circle at -2% 108%, rgba(18, 231, 192, .06), transparent 40%),
        linear-gradient(rgba(122, 182, 255, .03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(122, 182, 255, .03) 1px, transparent 1px);
    background-size: auto, auto, 56px 56px, 56px 56px;
    -webkit-font-smoothing: antialiased;
}

a {
    color: #3AAFFF;
    text-decoration: none;
    transition: color .25s ease;
}

a:hover {
    color: var(--cyan);
}

img {
    max-width: 100%;
    display: block;
}

ul, ol {
    margin: 0;
    padding: 0;
}

.grid-container {
    max-width: var(--max-width);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: 1px solid transparent;
    border-radius: 999px;
    cursor: pointer;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    color: #fff;
    background: transparent;
    transition: transform .28s ease, box-shadow .28s ease, background .28s ease, border-color .28s ease, color .28s ease;
}

.btn svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    fill: none;
}

.btn:active {
    transform: scale(.98);
}

.btn--primary {
    background: linear-gradient(120deg, #0F8CFF, #0052FF);
    color: #fff;
    box-shadow: 0 0 0 1px rgba(101, 214, 255, .16), 0 14px 40px rgba(0, 90, 255, .32);
}

.btn--primary:hover {
    color: #fff;
    background: linear-gradient(120deg, #1C9AFF, #0A5EF7);
    transform: translateY(-2px);
    box-shadow: 0 0 0 1px rgba(101, 214, 255, .3), 0 18px 52px rgba(0, 110, 255, .4);
}

.btn--glass {
    background: rgba(255, 255, 255, .06);
    border-color: rgba(125, 175, 255, .28);
    color: #BFE4FF;
}

.btn--glass:hover {
    background: rgba(255, 255, 255, .1);
    border-color: rgba(125, 175, 255, .42);
    color: #fff;
    transform: translateY(-2px);
}

.btn--small {
    padding: 9px 18px;
    font-size: 14px;
    min-height: 42px;
}

.eyebrow {
    display: inline-block;
    font-family: var(--font-num);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .16em;
    color: var(--mint);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--cyan);
    font-weight: 600;
    transition: gap .25s ease;
}

.text-link svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    transition: transform .25s ease;
}

.text-link:hover {
    color: #fff;
}

.text-link:hover svg {
    transform: translateX(4px);
}

a:focus-visible, button:focus-visible {
    outline: 3px solid rgba(40, 170, 255, .45);
    outline-offset: 3px;
    border-radius: 8px;
}

/* ========== 悬浮胶囊导航 ========== */
.site-header {
    position: fixed;
    top: 14px;
    left: 0;
    right: 0;
    z-index: 90;
    padding: 0 14px;
    pointer-events: none;
}

.nav-pill {
    pointer-events: auto;
    position: relative;
    display: flex;
    align-items: center;
    max-width: 1200px;
    min-height: 66px;
    margin: 0 auto;
    padding: 7px 10px 7px 16px;
    gap: 8px;
    background: rgba(7, 13, 28, .6);
    border: 1px solid rgba(145, 180, 255, .12);
    border-radius: 999px;
    box-shadow: 0 16px 50px rgba(0, 0, 0, .35);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    transition: background .35s ease, border-color .35s ease, box-shadow .35s ease;
}

.site-header.is-scrolled .nav-pill {
    background: rgba(6, 13, 31, .86);
    border-color: rgba(125, 175, 255, .2);
    box-shadow: 0 18px 60px rgba(0, 20, 60, .45);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 11px;
    flex: 0 0 auto;
    color: #fff;
    font-weight: 800;
    transition: opacity .25s ease;
}

.nav-brand:hover {
    color: #fff;
    opacity: .9;
}

.brand-mark {
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: linear-gradient(145deg, rgba(41, 166, 255, .92), rgba(18, 231, 192, .75));
    color: #041226;
    box-shadow: 0 0 22px rgba(41, 166, 255, .35);
}

.brand-mark svg {
    width: 21px;
    height: 21px;
    stroke: currentColor;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.brand-text {
    line-height: 1.15;
    font-size: 20px;
    letter-spacing: .02em;
    white-space: nowrap;
}

.brand-text small {
    display: block;
    margin-top: 2px;
    font-family: var(--font-num);
    font-size: 7.5px;
    font-weight: 600;
    letter-spacing: .16em;
    color: var(--mint);
    text-transform: uppercase;
    opacity: .85;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: auto;
    list-style: none;
}

.nav-menu li {
    list-style: none;
}

.nav-link {
    position: relative;
    display: block;
    padding: 9px 14px;
    color: #D3E7FC;
    font-size: 15px;
    font-weight: 500;
    border-radius: 999px;
    transition: color .25s ease, background .25s ease;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, .05);
}

.nav-link.is-active {
    color: #fff;
    font-weight: 600;
}

.nav-link.is-active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 3px;
    width: 18px;
    height: 3px;
    border-radius: 99px;
    background: var(--mint);
    transform: translateX(-50%);
    box-shadow: 0 0 12px rgba(18, 231, 192, .55);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(125, 175, 255, .18);
    background: rgba(255, 255, 255, .055);
    color: #fff;
    cursor: pointer;
    transition: background .25s ease, border-color .25s ease;
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, .1);
    border-color: rgba(125, 175, 255, .32);
}

.burger {
    display: block;
    width: 18px;
    height: 14px;
    position: relative;
}

.burger i {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    border-radius: 4px;
    transition: transform .3s ease, top .3s ease, opacity .3s ease;
}

.burger i:nth-child(1) { top: 0; }
.burger i:nth-child(2) { top: 6px; }
.burger i:nth-child(3) { top: 12px; }

.nav-toggle.is-open .burger i:nth-child(1) {
    top: 6px;
    transform: rotate(45deg);
}

.nav-toggle.is-open .burger i:nth-child(2) {
    opacity: 0;
}

.nav-toggle.is-open .burger i:nth-child(3) {
    top: 6px;
    transform: rotate(-45deg);
}

/* ========== 文章页 Hero ========== */
.article-hero {
    position: relative;
    isolation: isolate;
    padding: 180px 0 56px;
    background:
        linear-gradient(180deg, rgba(6, 13, 31, .90) 0%, rgba(6, 13, 31, .66) 100%),
        url('/assets/images/backpic/back-2.webp') center top / cover no-repeat;
    border-bottom: 1px solid rgba(125, 175, 255, .08);
    overflow: hidden;
}

.article-hero::before {
    content: "";
    position: absolute;
    inset: -40% -15% -20% -10%;
    z-index: -1;
    background:
        radial-gradient(circle at 72% 10%, rgba(41, 166, 255, .24), transparent 42%),
        radial-gradient(circle at 6% 82%, rgba(18, 231, 192, .08), transparent 40%);
    pointer-events: none;
}

.article-hero__content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.breadcrumb a {
    color: #C6DCFF;
}

.breadcrumb a:hover {
    color: #fff;
}

.crumb-sep {
    color: rgba(125, 175, 255, .35);
    font-family: var(--font-num);
}

.crumb-current {
    color: var(--text-muted);
}

.article-headline {
    margin: 0 0 24px;
    font-size: 44px;
    line-height: 1.3;
    font-weight: 800;
    letter-spacing: .01em;
    color: rgba(244, 250, 255, .96);
    text-wrap: balance;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px 22px;
    margin-top: 20px;
}

.article-meta__item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--text-muted);
    font-size: 14px;
}

.article-meta__item svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    color: var(--cyan);
}

.meta-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(125, 175, 255, .42);
}

.article-summary {
    margin-top: 28px;
    padding: 18px 22px;
    border: 1px solid rgba(125, 175, 255, .12);
    border-left: 4px solid var(--mint);
    border-radius: 16px;
    background: rgba(255, 255, 255, .03);
}

.article-summary__label {
    display: inline-block;
    margin-right: 10px;
    color: var(--mint);
    font-weight: 600;
    font-size: 14px;
}

.article-summary p {
    display: inline;
    margin: 0;
    color: var(--text-body);
    font-size: 15px;
}

/* ========== 正文阅读区 ========== */
.article-reader {
    padding: 76px 0 46px;
}

.article-frame {
    background: linear-gradient(160deg, rgba(255, 255, 255, .032), rgba(10, 21, 48, .36));
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 48px clamp(20px, 6vw, 60px);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.article-frame::before {
    content: "";
    position: absolute;
    top: -90px;
    right: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(41, 166, 255, .1), transparent 70%);
    pointer-events: none;
}

.article-content {
    max-width: 820px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    min-width: 0;
}

.article-content p {
    margin: 0 0 1.6em;
    color: var(--text-body);
    font-size: 17px;
    line-height: 1.9;
}

.article-content h2 {
    margin: 1.8em 0 .8em;
    font-size: 28px;
    line-height: 1.45;
    font-weight: 700;
    color: rgba(240, 248, 255, .96);
    border-left: 4px solid var(--blue);
    padding-left: 16px;
}

.article-content h3 {
    margin: 1.7em 0 .7em;
    font-size: 21px;
    line-height: 1.5;
    font-weight: 700;
    color: rgba(240, 248, 255, .95);
}

.article-content h4 {
    margin: 1.6em 0 .5em;
    font-size: 18px;
    font-weight: 700;
    color: rgba(240, 248, 255, .94);
}

.article-content ul,
.article-content ol {
    margin: 0 0 1.6em;
    padding-left: 22px;
    color: var(--text-body);
}

.article-content li {
    margin-bottom: .55em;
    line-height: 1.9;
}

.article-content li::marker {
    color: var(--cyan);
}

.article-content a {
    color: var(--cyan);
    border-bottom: 1px solid rgba(18, 231, 192, .35);
    transition: border-color .25s ease, color .25s ease;
}

.article-content a:hover {
    color: #fff;
    border-color: rgba(18, 231, 192, .8);
}

.article-content img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid rgba(125, 175, 255, .16);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .25);
    margin: 24px 0;
}

.article-content figure {
    margin: 28px 0;
}

.article-content figure img {
    margin: 0 0 10px;
}

.article-content figcaption {
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

.article-content blockquote {
    position: relative;
    margin: 30px 0;
    padding: 18px 24px 18px 28px;
    background: rgba(41, 166, 255, .05);
    border: 1px solid rgba(41, 166, 255, .14);
    border-left: 4px solid var(--mint);
    border-radius: 12px;
    color: rgba(225, 242, 255, .88);
    font-style: normal;
}

.article-content blockquote p {
    margin: 0;
}

.article-content pre {
    margin: 26px 0;
    padding: 20px 22px;
    background: #030712;
    border: 1px solid rgba(125, 175, 255, .12);
    border-radius: 14px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.8;
    color: #D5E9FF;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .02);
}

.article-content code {
    font-family: "SFMono-Regular", Consolas, Menlo, monospace;
    font-size: .9em;
    padding: .15em .4em;
    border-radius: .35em;
    background: rgba(41, 166, 255, .12);
    color: var(--cyan);
}

.article-content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
    border-radius: 0;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 28px 0;
    font-size: 15px;
    background: rgba(255, 255, 255, .025);
    border: 1px solid rgba(125, 175, 255, .12);
    border-radius: 12px;
    overflow: hidden;
}

.article-content th,
.article-content td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(125, 175, 255, .1);
    border-right: 1px solid rgba(125, 175, 255, .07);
    text-align: left;
    vertical-align: top;
}

.article-content th {
    background: rgba(41, 166, 255, .1);
    color: #E5F3FF;
    font-weight: 600;
}

.article-content tr:last-child td {
    border-bottom: 0;
}

.article-footnav {
    margin-top: 48px;
    padding-top: 26px;
    border-top: 1px solid rgba(125, 175, 255, .1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.article-bottom-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 15px;
    transition: color .25s ease;
}

.article-bottom-back:hover {
    color: var(--cyan);
}

/* ========== 相关推荐区 ========== */
.related-section {
    padding: 60px 0 var(--space-section);
    margin-top: 24px;
    border-top: 1px solid rgba(125, 175, 255, .08);
}

.related-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 34px;
}

.related-head h2 {
    margin: 6px 0 0;
    font-size: 30px;
    font-weight: 800;
    color: rgba(240, 248, 255, .95);
}

.related-card {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 100%;
    background: rgba(13, 24, 48, .55);
    border: 1px solid rgba(125, 175, 255, .13);
    border-radius: 22px;
    overflow: hidden;
    color: #fff;
    box-shadow: 0 8px 30px rgba(0, 0, 0, .28);
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.related-card:hover {
    color: #fff;
    transform: translateY(-6px);
    border-color: rgba(125, 175, 255, .34);
    box-shadow: 0 18px 45px rgba(0, 60, 140, .25);
}

.related-card__media {
    position: relative;
    height: 172px;
    background: linear-gradient(145deg, rgba(16, 32, 64, .9), rgba(24, 50, 90, .9));
    overflow: hidden;
}

.related-card__media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 35%, rgba(6, 13, 31, .55) 100%);
    pointer-events: none;
}

.related-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .55s ease;
}

.related-card:hover .related-card__media img {
    transform: scale(1.05);
}

.related-card__tag {
    position: absolute;
    left: 14px;
    bottom: 12px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    background: rgba(6, 13, 31, .68);
    border: 1px solid rgba(125, 175, 255, .18);
    color: var(--cyan);
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: .04em;
    backdrop-filter: blur(8px);
}

.related-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 22px 22px 20px;
}

.related-card__body h3 {
    margin: 0 0 10px;
    font-size: 19px;
    font-weight: 700;
    line-height: 1.45;
    color: rgba(240, 248, 255, .96);
}

.related-card__body p {
    margin: 0 0 16px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.75;
    flex: 1;
}

.related-card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--cyan);
    font-weight: 600;
    font-size: 14px;
}

.related-card:hover .related-card__link {
    color: #fff;
}

.related-card__link svg {
    width: 15px;
    height: 15px;
    stroke: currentColor;
    fill: none;
    transition: transform .25s ease;
}

.related-card:hover .related-card__link svg {
    transform: translateX(4px);
}

/* ========== 内容未找到 ========== */
.article-notfound {
    min-height: 78vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 170px 16px 80px;
}

.notfound-card {
    width: 100%;
    max-width: 560px;
    text-align: center;
    background: rgba(13, 24, 48, .5);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 48px 34px;
    box-shadow: var(--shadow);
}

.notfound-card .brand-mark {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    margin: 0 auto 20px;
}

.notfound-card .brand-mark svg {
    width: 27px;
    height: 27px;
}

.notfound-card h1 {
    margin: 0 0 10px;
    font-size: 32px;
    color: rgba(240, 248, 255, .96);
}

.notfound-card p {
    color: var(--text-muted);
    margin-bottom: 28px;
}

/* ========== 页脚 ========== */
.site-footer {
    background: linear-gradient(180deg, var(--bg-deep), #040912 18%);
    border-top: 1px solid rgba(125, 175, 255, .08);
    padding: 76px 0 0;
    color: var(--text-muted);
}

.site-footer .footer-brand-mark {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-size: 21px;
    font-weight: 800;
    margin-bottom: 18px;
}

.footer-brand-desc {
    font-size: 14px;
    line-height: 1.88;
    color: var(--text-muted);
    max-width: 360px;
}

.footer-title {
    margin: 6px 0 18px;
    font-size: 16px;
    font-weight: 600;
    color: #E8F3FF;
    border-left: 3px solid var(--cyan);
    padding-left: 12px;
    letter-spacing: .04em;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    list-style: none;
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 14px;
    transition: color .25s ease, padding-left .25s ease;
}

.footer-links a:hover {
    color: var(--cyan);
    padding-left: 4px;
}

.footer-contact p {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--text-muted);
}

.footer-contact a {
    color: var(--cyan);
}

.footer-bottom {
    margin-top: 50px;
    padding: 22px 0;
    border-top: 1px solid rgba(125, 175, 255, .08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: rgba(176, 196, 224, .55);
}

.footer-bottom a {
    color: rgba(176, 196, 224, .66);
}

.footer-bottom a:hover {
    color: #fff;
}

/* ========== 响应式 ========== */
@media screen and (max-width: 1180px) {
    .nav-pill {
        margin-left: 14px;
        margin-right: 14px;
    }
}

@media screen and (max-width: 1024px) {
    .nav-menu {
        gap: 0;
    }

    .nav-link {
        padding: 9px 10px;
        font-size: 14px;
    }

    .related-card__media {
        height: 155px;
    }

    .article-content {
        font-size: 16px;
    }
}

@media screen and (max-width: 960px) {
    .site-header {
        top: 10px;
    }

    .nav-pill {
        min-height: 62px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        left: 0;
        right: 0;
        top: calc(100% + 12px);
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 14px;
        background: rgba(7, 13, 28, .96);
        border: 1px solid rgba(125, 175, 255, .16);
        border-radius: 24px;
        box-shadow: 0 22px 60px rgba(0, 0, 0, .35);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        display: block;
        padding: 12px 16px;
        border-radius: 14px;
        font-size: 15px;
    }

    .nav-link.is-active::after {
        left: 18px;
        transform: none;
        bottom: 50%;
        margin: auto 0;
        top: 0;
        height: 22px;
        width: 3px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .article-hero {
        padding: 165px 0 46px;
    }

    .article-headline {
        font-size: 38px;
    }

    .related-head h2 {
        font-size: 26px;
    }

    .site-footer {
        padding-top: 56px;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --space-section: 70px;
    }

    .article-reader {
        padding: 52px 0 34px;
    }

    .article-frame {
        padding: 32px 20px;
    }

    .article-content p {
        font-size: 16px;
        line-height: 1.85;
    }

    .article-content h2 {
        font-size: 24px;
    }

    .article-content h3 {
        font-size: 19px;
    }

    .article-bottom-back {
        font-size: 14px;
    }

    .related-card {
        max-width: 540px;
        margin-left: auto;
        margin-right: auto;
    }

    .related-card__media {
        height: 185px;
    }
}

@media screen and (max-width: 640px) {
    .brand-text {
        font-size: 18px;
    }

    .brand-text small {
        display: none;
    }

    .btn--small {
        min-height: 38px;
        padding: 7px 14px;
        font-size: 13px;
    }

    .article-hero {
        padding: 145px 0 36px;
    }

    .article-headline {
        font-size: 30px;
        line-height: 1.35;
    }

    .article-meta {
        gap: 8px 12px;
    }

    .article-meta__item {
        font-size: 13px;
    }

    .meta-dot {
        display: none;
    }

    .article-summary {
        padding: 14px 16px;
    }

    .article-summary__label {
        display: block;
        margin-bottom: 4px;
    }

    .article-content table {
        display: block;
        overflow-x: auto;
        border: 0;
    }

    .article-content th,
    .article-content td {
        min-width: 130px;
    }

    .related-card__body {
        padding: 18px;
    }

    .related-card__body h3 {
        font-size: 18px;
    }

    .related-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .footer-bottom {
        flex-direction: column;
    }

    .footer-links {
        margin-bottom: 20px;
    }
}

@media screen and (max-width: 480px) {
    .site-header {
        padding: 0 10px;
    }

    .nav-pill {
        padding-left: 12px;
    }

    .brand-mark {
        width: 32px;
        height: 32px;
        flex-basis: 32px;
        border-radius: 11px;
    }

    .brand-mark svg {
        width: 19px;
        height: 19px;
    }

    .brand-text {
        font-size: 17px;
    }

    .nav-actions .btn--small svg {
        display: none;
    }

    .article-frame {
        border-radius: 18px;
    }

    .article-content blockquote {
        padding-left: 18px;
        padding-right: 16px;
    }

    .notfound-card {
        padding: 36px 20px;
    }

    .notfound-card h1 {
        font-size: 26px;
    }
}

/* roulang page: category1 */
:root {
  --bg: #060D1F;
  --bg-deep: #040912;
  --panel: rgba(13, 24, 48, 0.72);
  --panel-glass: rgba(255, 255, 255, 0.045);
  --primary: #29A6FF;
  --primary-light: #65D6FF;
  --cyan: #12E7C0;
  --danger: #FF5C7A;
  --orange: #FF9066;
  --text: rgba(236, 246, 255, 0.93);
  --text-2: rgba(176, 196, 224, 0.72);
  --text-3: rgba(140, 164, 196, 0.56);
  --border: rgba(125, 175, 255, 0.16);
  --border-strong: rgba(125, 175, 255, 0.34);
  --radius-lg: 28px;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 18px 60px rgba(0, 10, 40, 0.45);
  --glow: 0 18px 55px rgba(0, 90, 200, 0.25);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 88% 4%, rgba(30, 150, 255, 0.16), transparent 32%),
    radial-gradient(circle at 8% 22%, rgba(18, 231, 192, 0.07), transparent 28%),
    radial-gradient(circle at 50% 90%, rgba(0, 82, 255, 0.08), transparent 40%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .22s ease; }
a:hover { color: var(--primary-light); }
ul, ol { list-style: none; margin: 0; padding: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
input, select, textarea { outline: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid rgba(41, 166, 255, 0.75);
  outline-offset: 3px;
}
.grid-container { max-width: 1240px; }
.grid-container .grid-container { padding-left: 0; padding-right: 0; }
.site-main { position: relative; z-index: 1; }
.site-header {
  position: sticky;
  top: 12px;
  z-index: 300;
  padding: 0 16px;
}
.nav-pill {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px 10px 20px;
  border-radius: 60px;
  background: rgba(6, 13, 29, 0.62);
  border: 1px solid rgba(125, 175, 255, 0.18);
  box-shadow: 0 12px 40px rgba(0, 5, 20, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.nav-brand { display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  border-radius: 13px;
  background: linear-gradient(135deg, #0E8CFF 0%, #0052FF 100%);
  box-shadow: 0 0 20px rgba(41, 166, 255, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.brand-mark svg { width: 20px; height: 20px; }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: #fff;
  white-space: nowrap;
}
.brand-text small {
  margin-top: 3px;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.26em;
  color: rgba(160, 200, 240, 0.68);
  text-transform: uppercase;
}
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu li { line-height: 1; }
.nav-link {
  display: inline-block;
  padding: 10px 15px;
  border-radius: 999px;
  color: var(--text-2);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  transition: color .2s, background .2s, box-shadow .2s;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
.nav-link.is-active {
  position: relative;
  color: #fff;
  background: rgba(41, 166, 255, 0.14);
  box-shadow: inset 0 0 0 1px rgba(100, 190, 255, 0.18);
}
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--cyan));
  box-shadow: 0 0 12px rgba(18, 231, 192, 0.45);
}
.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(125, 175, 255, 0.3);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}
.burger { position: relative; display: block; width: 20px; height: 14px; }
.burger i {
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform .24s ease, opacity .24s ease, top .24s ease;
}
.burger i:nth-child(1) { top: 0; }
.burger i:nth-child(2) { top: 6px; }
.burger i:nth-child(3) { top: 12px; }
.nav-toggle.is-active .burger i:nth-child(1) { top: 6px; transform: rotate(45deg); }
.nav-toggle.is-active .burger i:nth-child(2) { opacity: 0; }
.nav-toggle.is-active .burger i:nth-child(3) { top: 6px; transform: rotate(-45deg); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 1.35rem;
  border-radius: 999px;
  border: 0;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: transform .2s, box-shadow .25s, background .25s, border-color .25s, color .2s;
}
.btn svg { width: 17px; height: 17px; }
.btn--primary {
  color: #fff;
  background: linear-gradient(125deg, #0F8CFF 0%, #0052FF 100%);
  border: 1px solid rgba(120, 210, 255, 0.35);
  box-shadow: 0 12px 32px rgba(0, 100, 255, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}
.btn--primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 18px 45px rgba(0, 130, 255, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.btn--primary:active { transform: scale(0.98); }
.btn--secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(125, 175, 255, 0.32);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.btn--secondary:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(125, 175, 255, 0.55);
  box-shadow: 0 12px 28px rgba(0, 80, 200, 0.15);
  transform: translateY(-2px);
}
.btn--small { min-height: 38px; padding: 0 18px; font-size: 13px; }
.btn--text {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: auto;
  padding: 4px 0;
  color: var(--primary-light);
  font-weight: 600;
  font-size: 14px;
}
.btn--text svg { width: 14px; height: 14px; transition: transform .2s; }
.btn--text:hover { color: var(--cyan); }
.btn--text:hover svg { transform: translateX(4px); }
.section { padding: 80px 0; }
.section--dim { background: linear-gradient(180deg, rgba(255,255,255,0.012), rgba(255,255,255,0.025)); }
.section-head { max-width: 760px; margin-bottom: 42px; }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-transform: uppercase;
}
.section-kicker::before { content: ""; width: 20px; height: 2px; border-radius: 2px; background: var(--cyan); box-shadow: 0 0 12px rgba(18, 231, 192, 0.5); }
.section-head p { color: var(--text-2); font-size: 16px; margin: 12px 0 0 0; }
h1, h2, h3, h4 { color: #fff; margin-top: 0; line-height: 1.35; }
h1 { font-size: clamp(34px, 4.8vw, 54px); font-weight: 800; line-height: 1.2; margin-bottom: 16px; }
h2 { font-size: clamp(26px, 3vw, 34px); font-weight: 700; margin-bottom: 14px; }
h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
h4 { font-size: 16px; font-weight: 650; margin-bottom: 6px; }
p { margin-top: 0; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; font-size: 14px; color: var(--text-2); }
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { color: var(--text-3); }
.hero-section { padding-top: 30px; }
.hero-wrap {
  position: relative;
  overflow: hidden;
  min-height: 500px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(125, 175, 255, 0.22);
  background-image:
    radial-gradient(circle at 12% 10%, rgba(18, 231, 192, 0.12), transparent 26%),
    radial-gradient(circle at 90% 6%, rgba(41, 166, 255, 0.34), transparent 34%),
    linear-gradient(135deg, rgba(6, 13, 31, 0.88) 0%, rgba(8, 22, 47, 0.72) 100%);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.hero-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 12, 28, 0.96) 0%, rgba(6, 16, 36, 0.72) 55%, rgba(8, 20, 44, 0.32) 100%);
  pointer-events: none;
}
.hero-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(122, 182, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 182, 255, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.hero-wrap > .grid-container { position: relative; z-index: 2; }
.hero-inner { padding: 58px 0 58px; align-items: center; }
.hero-copy { padding-right: 30px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  margin-bottom: 20px;
  border-radius: 999px;
  background: rgba(10, 22, 46, 0.55);
  border: 1px solid rgba(125, 175, 255, 0.22);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
  backdrop-filter: blur(14px);
}
.hero-badge i { width: 8px; height: 8px; border-radius: 99px; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.hero-copy > p { color: var(--text-2); font-size: 17px; max-width: 560px; margin: 20px 0 28px; }
.hero-tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(220, 235, 255, 0.9);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(125, 175, 255, 0.2);
  backdrop-filter: blur(10px);
}
.chip svg { width: 14px; height: 14px; color: var(--primary-light); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-panel {
  position: relative;
  padding: 26px;
  border-radius: 22px;
  background: rgba(8, 18, 38, 0.66);
  border: 1px solid rgba(125, 195, 255, 0.26);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.hero-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-bottom: 16px; margin-bottom: 16px; border-bottom: 1px solid rgba(255, 255, 255, 0.07); }
.hero-panel-title { font-size: 14px; font-weight: 700; color: #fff; }
.hero-panel-status { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-2); }
.hero-panel-status i { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.portal-graphic { margin: 18px 0 16px; }
.portal-graphic svg { width: 100%; height: auto; }
.hero-panel-list { display: grid; gap: 10px; }
.hero-panel-list li { display: flex; flex-direction: column; gap: 3px; padding: 12px 14px; background: rgba(255, 255, 255, 0.035); border: 1px solid rgba(125, 175, 255, 0.14); border-radius: 14px; }
.hero-panel-list strong { font-size: 14px; color: #fff; font-weight: 650; }
.hero-panel-list span { font-size: 13px; color: var(--text-2); }
.stats-section { padding: 38px 0 20px; }
.stat-card {
  position: relative;
  height: 100%;
  border-radius: var(--radius);
  padding: 22px 20px 20px;
  background: var(--panel-glass);
  border: 1px solid rgba(125, 175, 255, 0.15);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: transform .22s, border-color .22s, background .22s;
  backdrop-filter: blur(16px);
}
.stat-card:hover { transform: translateY(-4px); border-color: rgba(125, 175, 255, 0.34); background: rgba(255, 255, 255, 0.06); }
.stat-icon { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; color: var(--primary-light); border-radius: 13px; background: rgba(41, 166, 255, 0.1); margin-bottom: 14px; }
.stat-icon svg { width: 20px; height: 20px; }
.stat-num { font-size: clamp(28px, 2.4vw, 42px); font-weight: 800; color: #fff; line-height: 1.1; font-family: "DIN Alternate", "Bahnschrift", var(--font); }
.stat-num small { font-size: 0.52em; color: var(--primary-light); font-weight: 700; margin-left: 3px; }
.stat-label { display: block; margin-top: 10px; font-size: 14px; font-weight: 650; color: #fff; }
.stat-note { display: block; margin-top: 4px; color: var(--text-3); font-size: 12px; line-height: 1.6; }
.glass-card {
  background: var(--panel);
  border: 1px solid rgba(125, 175, 255, 0.14);
  border-radius: var(--radius);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.075);
}
.coverage-section { padding-top: 70px; }
.coverage-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 22px; }
.coverage-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border-radius: 22px;
  background: rgba(13, 24, 48, 0.8);
  border: 1px solid rgba(125, 175, 255, 0.16);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.09);
  transition: transform .24s, border-color .24s, box-shadow .24s;
}
.coverage-card:hover { transform: translateY(-5px); border-color: rgba(125, 190, 255, 0.32); box-shadow: 0 22px 60px rgba(0, 80, 180, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.11); }
.coverage-card--main { grid-column: span 4; }
.coverage-card--side { grid-column: span 2; }
.coverage-card--third { grid-column: span 2; }
.coverage-card__icon { width: 42px; height: 42px; margin-bottom: 18px; display: flex; align-items: center; justify-content: center; color: var(--cyan); border-radius: 14px; background: rgba(18, 231, 192, 0.1); border: 1px solid rgba(18, 231, 192, 0.14); }
.coverage-card__icon svg { width: 20px; height: 20px; }
.coverage-card h3 { margin-bottom: 8px; }
.coverage-card p { margin-bottom: 12px; color: var(--text-2); font-size: 14.5px; }
.check-list { display: grid; gap: 10px; margin-top: 16px; }
.check-list li { position: relative; padding-left: 30px; color: var(--text-2); font-size: 14.5px; line-height: 1.7; }
.check-list li::before { content: "✓"; position: absolute; left: 2px; top: 4px; width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; color: var(--cyan); font-size: 11px; font-weight: 800; border-radius: 6px; background: rgba(18, 231, 192, 0.1); border: 1px solid rgba(18, 231, 192, 0.16); }
.coverage-card--bg {
  background-image:
    linear-gradient(180deg, rgba(8, 18, 38, 0.94) 0%, rgba(8, 18, 38, 0.74) 100%),
    url('/assets/images/coverpic/cover-1.webp');
  background-size: cover;
  background-position: center;
}
.coverage-card__tag { display: inline-flex; align-items: center; gap: 6px; margin-top: 4px; padding: 5px 11px; border-radius: 999px; font-size: 12px; font-weight: 600; color: var(--text-2); background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(125, 175, 255, 0.13); }
.compare-card { height: 100%; padding: 30px; border-radius: 22px; }
.compare-card--old { background: rgba(3, 7, 15, 0.72); border: 1px solid rgba(125, 175, 255, 0.12); opacity: 0.9; }
.compare-card--new { background: rgba(13, 30, 60, 0.86); border: 1px solid rgba(105, 214, 255, 0.4); box-shadow: 0 20px 60px rgba(0, 90, 200, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.14), inset 0 0 45px rgba(41, 166, 255, 0.05); }
.compare-icon { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.compare-icon .icon-badge { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; color: var(--text-2); border-radius: 13px; background: rgba(255, 255, 255, 0.04); }
.compare-icon .icon-badge svg { width: 18px; height: 18px; }
.compare-card--new .compare-icon .icon-badge { color: #fff; background: linear-gradient(135deg, rgba(41, 166, 255, 0.9), rgba(18, 231, 192, 0.7)); }
.compare-card h3 { margin: 0; font-size: 18px; }
.compare-note { font-size: 14px; color: var(--text-2); margin-bottom: 22px; }
.comparison-list { display: grid; gap: 14px; }
.comparison-list li { position: relative; padding-left: 30px; color: var(--text-2); line-height: 1.7; }
.comparison-list li::before { content: "×"; position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; color: var(--danger); font-size: 13px; font-weight: 800; border-radius: 7px; background: rgba(255, 92, 122, 0.1); border: 1px solid rgba(255, 92, 122, 0.2); }
.compare-card--new .comparison-list li::before { content: "✓"; color: var(--cyan); background: rgba(18, 231, 192, 0.1); border-color: rgba(18, 231, 192, 0.2); }
.compare-card--new .comparison-list li { color: rgba(225, 242, 255, 0.9); }
.compare-action { margin-top: 26px; }
.path-section { padding: 70px 0; }
.path-img { position: relative; border-radius: 24px; overflow: hidden; min-height: 300px; box-shadow: var(--shadow); }
.path-img img { width: 100%; height: 100%; object-fit: cover; min-height: 300px; }
.path-img-overlay { position: absolute; inset: auto 0 0 0; padding: 16px 20px; color: var(--text); font-size: 13px; background: linear-gradient(180deg, transparent, rgba(4, 9, 16, 0.92)); }
.step-stack { display: grid; gap: 16px; }
.path-step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 22px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(125, 175, 255, 0.13);
  transition: border-color .2s, background .2s;
}
.path-step:hover { border-color: rgba(125, 175, 255, 0.28); background: rgba(255, 255, 255, 0.05); }
.step-num { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 20px; font-family: "DIN Alternate", var(--font); border-radius: 17px; background: linear-gradient(135deg, rgba(15, 140, 255, 0.9), rgba(0, 82, 255, 0.9)); box-shadow: 0 12px 26px rgba(0, 110, 230, 0.3); }
.path-step p { margin: 0; color: var(--text-2); font-size: 14.5px; }
.path-step h4 { margin: 0 0 3px; }
.cat-card { position: relative; height: 100%; padding: 26px; border-radius: 20px; background: rgba(255, 255, 255, 0.045); border: 1px solid rgba(125, 175, 255, 0.16); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07); transition: transform .22s, border-color .22s, background .22s; backdrop-filter: blur(16px); }
.cat-card:hover { transform: translateY(-4px); border-color: rgba(125, 190, 255, 0.4); background: rgba(255, 255, 255, 0.065); }
.cat-card.is-current { border-color: rgba(18, 231, 192, 0.4); box-shadow: 0 18px 55px rgba(0, 110, 190, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.1); }
.cat-card__icon { width: 40px; height: 40px; color: var(--primary-light); margin-bottom: 16px; display: flex; align-items: center; justify-content: center; border-radius: 13px; background: rgba(41, 166, 255, 0.12); }
.cat-card.is-current .cat-card__icon { color: var(--cyan); background: rgba(18, 231, 192, 0.12); }
.cat-card__icon svg { width: 20px; height: 20px; }
.cat-card p { margin: 0 0 18px; color: var(--text-2); font-size: 14px; }
.cat-card .btn--text { margin-top: auto; }
.cat-card .card-meta { color: var(--text-3); font-size: 13px; margin-top: 12px; }
.faq-section { padding-top: 70px; }
.faq-list { max-width: 920px; margin: 0 auto; }
.faq-item { margin-bottom: 14px; border-radius: 18px; background: rgba(255, 255, 255, 0.035); border: 1px solid rgba(125, 175, 255, 0.14); overflow: hidden; transition: border-color .2s, background .2s; }
.faq-item:hover { border-color: rgba(125, 175, 255, 0.28); }
.faq-item.is-open { background: rgba(255, 255, 255, 0.05); border-color: rgba(100, 190, 255, 0.3); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 19px 22px;
  background: none;
  border: 0;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  cursor: pointer;
  text-align: left;
}
.faq-q-num { flex: 0 0 auto; width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; color: var(--cyan); font-size: 13px; font-weight: 800; border-radius: 9px; background: rgba(18, 231, 192, 0.1); border: 1px solid rgba(18, 231, 192, 0.14); }
.faq-question span { flex: 1 1 auto; }
.faq-chevron { flex: 0 0 auto; width: 20px; height: 20px; color: var(--text-2); transition: transform .3s ease; }
.faq-chevron svg { width: 100%; height: 100%; }
.faq-item.is-open .faq-chevron { transform: rotate(45deg); color: var(--cyan); }
.faq-answer { display: grid; grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows .35s ease, opacity .25s ease; }
.faq-item.is-open .faq-answer { grid-template-rows: 1fr; opacity: 1; }
.faq-answer-inner { overflow: hidden; }
.faq-answer-inner p { padding: 0 24px 20px 52px; color: var(--text-2); font-size: 14.5px; line-height: 1.9; }
.lead-wrap { position: relative; overflow: hidden; border-radius: var(--radius-lg); background: rgba(10, 20, 42, 0.75); border: 1px solid rgba(90, 180, 255, 0.24); box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08); }
.lead-wrap::before { content: ""; position: absolute; z-index: 0; top: -140px; right: -100px; width: 320px; height: 320px; background: radial-gradient(circle, rgba(18, 231, 192, 0.18), transparent 65%); pointer-events: none; }
.lead-wrap::after { content: ""; position: absolute; z-index: 0; bottom: -140px; left: 10%; width: 300px; height: 300px; background: radial-gradient(circle, rgba(41, 166, 255, 0.2), transparent 65%); pointer-events: none; }
.lead-inner { position: relative; z-index: 1; padding: 48px; }
.lead-content { padding-right: 34px; }
.lead-list { display: grid; gap: 13px; margin-top: 24px; }
.lead-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--text-2); font-size: 14.5px; line-height: 1.7; }
.lead-list li::before { content: ""; flex: 0 0 auto; width: 7px; height: 7px; margin-top: 9px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px rgba(18, 231, 192, 0.7); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--full { grid-column: span 2; }
.field-label { font-size: 13px; font-weight: 600; color: var(--text-2); }
.form-control {
  width: 100%;
  color: #fff;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(125, 175, 255, 0.2);
  border-radius: 12px;
  padding: 11px 14px;
  line-height: 1.5;
  transition: border-color .2s, background .2s;
}
.form-control:focus { background: rgba(0, 0, 0, 0.3); border-color: var(--primary); }
.form-control::placeholder { color: var(--text-3); }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%23b0c4e0' stroke-width='1.6' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
select.form-control option { background: #0b1a33; color: #fff; }
textarea.form-control { min-height: 92px; resize: vertical; }
.form-note { display: none; grid-column: span 2; font-size: 14px; margin-top: 4px; }
.form-note.is-success { display: flex; align-items: center; gap: 8px; color: var(--cyan); }
.form-note.is-error { display: flex; align-items: center; gap: 8px; color: var(--danger); }
.site-footer { position: relative; z-index: 2; margin-top: 100px; padding: 64px 0 0; background: #040912; border-top: 1px solid rgba(125, 175, 255, 0.12); }
.footer-brand-mark { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: #fff; letter-spacing: 0.01em; }
.footer-brand-desc { margin: 18px 0 0; color: var(--text-3); font-size: 14px; line-height: 1.9; max-width: 360px; }
.footer-title { margin-bottom: 18px; font-size: 14px; font-weight: 700; color: rgba(210, 230, 255, 0.92); letter-spacing: 0.04em; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { display: inline-flex; align-items: center; gap: 7px; color: var(--text-3); font-size: 14px; transition: color .2s, transform .2s; }
.footer-links a::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--primary); opacity: 0.5; }
.footer-links a:hover { color: var(--primary-light); transform: translateX(3px); }
.footer-contact p { margin: 0 0 8px; color: var(--text-3); font-size: 14px; }
.footer-contact a { color: var(--text-2); }
.footer-contact a:hover { color: var(--primary-light); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 56px; padding: 20px 0 26px; border-top: 1px solid rgba(255, 255, 255, 0.06); color: var(--text-3); font-size: 13px; }
.footer-bottom a { color: var(--text-3); }
.site-round-img { border-radius: 20px; border: 1px solid rgba(125, 175, 255, 0.2); box-shadow: var(--shadow); }
@media (max-width: 1024px) {
  .section { padding: 58px 0; }
  .coverage-grid { grid-template-columns: repeat(2, 1fr); }
  .coverage-card--main { grid-column: span 2; }
  .coverage-card--side, .coverage-card--third { grid-column: span 1; }
  .lead-inner { padding: 34px; }
  .lead-content { padding-right: 0; padding-bottom: 22px; }
}
@media (max-width: 900px) {
  .site-header { padding: 0 12px; }
  .nav-pill { padding: 8px; }
  .nav-brand .brand-text { font-size: 16px; }
  .brand-mark { width: 34px; height: 34px; }
  .nav-actions .btn--small { display: none; }
  .nav-toggle { display: inline-flex; margin-left: 0; }
  .nav-menu {
    position: absolute;
    left: 8px;
    right: 8px;
    top: calc(100% + 14px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px;
    border-radius: 24px;
    background: rgba(6, 13, 29, 0.96);
    border: 1px solid rgba(125, 175, 255, 0.2);
    box-shadow: var(--shadow);
    backdrop-filter: blur(24px);
  }
  .nav-menu.is-open { display: flex; }
  .nav-menu li { padding: 3px 0; }
  .nav-link { display: block; padding: 13px 18px; font-size: 15px; }
  .nav-link.is-active::after { left: 18px; right: auto; width: 24px; bottom: 8px; }
  .hero-inner { padding: 36px 0; }
  .hero-copy { padding-right: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .field--full { grid-column: span 1; }
}
@media (max-width: 768px) {
  .section { padding: 44px 0; }
  .section-head { margin-bottom: 28px; }
  h1 { font-size: 32px; margin-bottom: 12px; }
  h2 { font-size: 24px; }
  .hero-wrap { min-height: 0; border-radius: 22px; }
  .hero-copy > p { font-size: 15px; }
  .hero-tag-row { gap: 8px; margin-bottom: 24px; }
  .coverage-card { padding: 22px; }
  .coverage-grid { gap: 14px; }
  .compare-card { padding: 24px; }
  .steps-media { margin-top: 24px; }
  .lead-inner { padding: 24px; }
  .footer-links { gap: 7px; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 520px) {
  .brand-text small { display: none; }
  .nav-brand { gap: 8px; }
  .nav-actions .btn { display: none; }
  .hero-inner { padding: 26px 0; }
  .hero-copy > p { font-size: 14.5px; }
  .hero-actions .btn { width: 100%; }
  .section { padding: 38px 0; }
  .coverage-grid { grid-template-columns: 1fr; }
  .coverage-card--main, .coverage-card--side, .coverage-card--third { grid-column: span 1; }
  .path-step { grid-template-columns: 1fr; gap: 12px; }
  .step-num { width: 46px; height: 46px; border-radius: 14px; font-size: 17px; }
  .faq-question { padding: 16px 16px; font-size: 14px; }
  .faq-answer-inner p { padding: 0 16px 18px 42px; font-size: 14px; }
  .cat-card { padding: 20px; }
  .stat-card { padding: 18px; }
  textarea.form-control { min-height: 76px; }
}

/* roulang page: category3 */
:root{
  --bg:#060D1F;
  --bg-2:#0A1530;
  --bg-3:#040912;
  --panel:rgba(13,24,48,.70);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --primary:#29A6FF;
  --primary-light:#65D6FF;
  --accent:#12E7C0;
  --warn:#FF5C7A;
  --text:rgba(236,246,255,.92);
  --text-dim:rgba(176,196,224,.72);
  --text-soft:rgba(176,196,224,.52);
  --line:rgba(125,175,255,.16);
  --line-soft:rgba(255,255,255,.08);
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 20px 60px rgba(0,90,200,.25);
  --shadow-soft:0 12px 34px rgba(2,10,28,.45);
  --maxw:1200px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"Rajdhani","DIN Alternate","Barlow Condensed",var(--font);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(circle at 82% 6%,rgba(30,150,255,.20),transparent 46%),
    radial-gradient(circle at 6% 34%,rgba(16,220,190,.10),transparent 42%),
    linear-gradient(180deg,#060D1F 0%,#08122A 42%,#060D1F 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:#fff}
p{margin:0}
input,select,textarea{font-family:inherit;font-size:15px}
::selection{background:rgba(41,166,255,.35);color:#fff}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(40,170,255,.45);border-radius:6px}

/* 容器 */
.grid-container{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:78px 0;position:relative}
.section--tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary-light);font-weight:600;
  padding:5px 14px;border-radius:999px;
  background:rgba(41,166,255,.10);border:1px solid var(--line);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
h2.section-title{
  font-size:clamp(24px,3vw,34px);font-weight:700;position:relative;padding-left:16px;margin-bottom:14px;
}
h2.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary-light),var(--accent));
}
.section-desc{color:var(--text-dim);font-size:16px;max-width:720px}
.section-head.is-center .section-title{padding-left:0}
.section-head.is-center .section-title::before{display:none}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:200;
  padding:16px 24px 10px;
  transition:padding .25s ease;
}
.nav-pill{
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 18px;
  border-radius:999px;
  background:rgba(7,13,28,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  box-shadow:0 14px 44px rgba(2,10,28,.55),inset 0 1px 0 rgba(255,255,255,.07);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-pill{
  background:rgba(7,13,28,.88);
  box-shadow:0 18px 52px rgba(2,10,28,.72),inset 0 1px 0 rgba(255,255,255,.09);
}
.nav-brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,rgba(41,166,255,.35),rgba(18,231,192,.20));
  border:1px solid rgba(125,175,255,.32);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 6px 18px rgba(0,90,200,.35);
}
.brand-mark svg{width:21px;height:21px;stroke:var(--primary-light);fill:none}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em}
.brand-text small{font-size:9.5px;letter-spacing:.18em;color:var(--text-soft);font-weight:500;margin-top:1px}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  display:inline-block;padding:9px 15px;border-radius:999px;
  font-size:15px;color:var(--text-dim);position:relative;white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.is-active{color:#fff;background:rgba(41,166,255,.14)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:3px;width:18px;height:2px;border-radius:2px;background:var(--accent);
  box-shadow:0 0 8px var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  cursor:pointer;align-items:center;justify-content:center;
}
.burger{display:inline-flex;flex-direction:column;gap:4px;width:18px}
.burger i{display:block;height:2px;border-radius:2px;background:var(--primary-light);transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none}
.btn--primary{
  color:#fff;
  background:linear-gradient(180deg,#0F8CFF 0%,#0052FF 100%);
  border-color:rgba(101,214,255,.45);
  box-shadow:0 10px 30px rgba(0,82,255,.35),inset 0 1px 0 rgba(255,255,255,.28);
}
.btn--primary:hover{box-shadow:0 16px 44px rgba(41,166,255,.55),inset 0 1px 0 rgba(255,255,255,.34);transform:translateY(-2px)}
.btn--ghost{
  color:#9fe6ff;
  background:rgba(255,255,255,.06);
  border-color:rgba(125,175,255,.30);
}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn--small{padding:9px 17px;font-size:14px}
.btn--block{width:100%}
.btn:active{transform:scale(.98)}
.link-more{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--primary-light);font-weight:600;font-size:15px;
}
.link-more svg{width:16px;height:16px;stroke:currentColor;fill:none;transition:transform .22s ease}
.link-more:hover svg{transform:translateX(4px)}

/* 玻璃卡 */
.glass-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.08);
  padding:28px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
}
.glass-card:hover{
  transform:translateY(-5px);
  border-color:rgba(101,214,255,.38);
  background:var(--glass-strong);
  box-shadow:0 22px 56px rgba(0,90,200,.35),inset 0 1px 0 rgba(255,255,255,.12);
}
.card-icon{
  width:46px;height:46px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(41,166,255,.28),rgba(18,231,192,.14));
  border:1px solid rgba(125,175,255,.28);
  margin-bottom:16px;
}
.card-icon svg{width:22px;height:22px;stroke:var(--primary-light);fill:none}
.glass-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.glass-card p{color:var(--text-dim);font-size:15px}
.glass-card .card-body{color:var(--text-dim);font-size:15px}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;
  color:var(--primary-light);background:rgba(41,166,255,.10);
  border:1px solid var(--line);letter-spacing:.04em;
}
.tag--accent{color:var(--accent);background:rgba(18,231,192,.10);border-color:rgba(18,231,192,.25)}

/* Hero */
.hero{position:relative;padding:44px 0 72px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,13,31,.55) 0%,rgba(6,13,31,.90) 62%,var(--bg) 100%),
    radial-gradient(circle at 78% 12%,rgba(30,150,255,.35),transparent 52%),
    radial-gradient(circle at 8% 82%,rgba(16,220,190,.16),transparent 48%);
}
.hero-grid-lines{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(122,182,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,182,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 20%,transparent 78%);
  pointer-events:none;
}
.hero .grid-container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:13.5px;color:var(--text-soft);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-dim)}
.breadcrumb a:hover{color:var(--primary-light)}
.breadcrumb span.sep{color:rgba(176,196,224,.32)}
.breadcrumb strong{color:var(--primary-light);font-weight:600}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.24;letter-spacing:-.01em;
  margin:14px 0 20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--primary-light),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--text-dim);font-size:16.5px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px}
.hero-fact{display:flex;flex-direction:column;gap:2px}
.hero-fact b{font-family:var(--font-num);font-size:26px;font-weight:700;color:#fff;letter-spacing:.02em}
.hero-fact span{font-size:13px;color:var(--text-soft)}
.hero-visual{
  position:relative;
  border-radius:var(--radius-lg);
  padding:22px;
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.12);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.hero-visual img{border-radius:14px;border:1px solid var(--line-soft);margin-bottom:16px;aspect-ratio:16/10;object-fit:cover}
.hero-visual-list{display:flex;flex-direction:column;gap:10px}
.hero-visual-list li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-dim);
  padding:9px 12px;border-radius:10px;background:rgba(0,0,0,.20);
  border:1px solid var(--line-soft);
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);flex-shrink:0}

/* 指标带 */
.stat-band{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.08);
  padding:10px 6px;
  margin-top:-34px;
  position:relative;z-index:5;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{
  padding:22px 24px;
  border-right:1px solid var(--line-soft);
  display:flex;flex-direction:column;gap:6px;
}
.stat-item:last-child{border-right:none}
.stat-item .stat-icon svg{width:20px;height:20px;stroke:var(--primary-light);fill:none}
.stat-num{font-family:var(--font-num);font-size:34px;font-weight:700;color:#fff;letter-spacing:.02em;line-height:1.1}
.stat-num small{font-size:15px;font-weight:600;color:var(--primary-light);margin-left:4px}
.stat-label{font-size:13.5px;color:var(--text-soft)}

/* 礼包类型 bento */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.bento .glass-card.span-2{grid-column:span 2}
.bento .glass-card.tall{grid-row:span 2}
.gift-thumb{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:14px;border:1px solid var(--line-soft);margin-bottom:18px;
}
.mini-list{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.mini-list li{display:flex;gap:9px;font-size:14.5px;color:var(--text-dim);align-items:flex-start}
.mini-list li svg{width:16px;height:16px;stroke:var(--accent);fill:none;flex-shrink:0;margin-top:5px}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.step{
  position:relative;padding:24px 20px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(101,214,255,.36)}
.step-index{
  font-family:var(--font-num);font-size:14px;font-weight:700;
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(41,166,255,.30),rgba(18,231,192,.14));
  border:1px solid rgba(125,175,255,.28);color:var(--primary-light);
  margin-bottom:14px;
}
.step h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-dim)}

/* 对比/场景 */
.scene-split{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.scene-panel{
  border-radius:var(--radius-lg);padding:32px;
  border:1px solid var(--line-soft);
  background:rgba(255,255,255,.025);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.scene-panel h3{font-size:20px;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.scene-panel h3 svg{width:20px;height:20px;stroke:var(--primary-light);fill:none}
.scene-panel.is-hot{
  border-color:rgba(101,214,255,.40);
  background:linear-gradient(160deg,rgba(41,166,255,.14),rgba(18,231,192,.06));
  box-shadow:0 24px 60px rgba(0,90,200,.35),inset 0 1px 0 rgba(255,255,255,.16);
}
.scene-list{display:flex;flex-direction:column;gap:12px;margin-top:6px}
.scene-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:15px;color:var(--text-dim);
  padding-bottom:12px;border-bottom:1px dashed rgba(125,175,255,.14);
}
.scene-list li:last-child{border-bottom:none;padding-bottom:0}
.scene-list li svg{width:17px;height:17px;stroke:var(--accent);fill:none;flex-shrink:0;margin-top:5px}
.scene-panel.is-hot .scene-list li svg{stroke:var(--accent)}

/* 自查清单 */
.check-panel{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.08);
  padding:38px;
  display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;
}
.check-panel img{border-radius:16px;border:1px solid var(--line-soft);aspect-ratio:16/11;object-fit:cover;width:100%}
.check-list{display:flex;flex-direction:column;gap:16px}
.check-list li{display:flex;gap:14px;align-items:flex-start}
.check-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--primary-light);
  width:30px;height:30px;flex-shrink:0;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(41,166,255,.12);border:1px solid var(--line);
}
.check-list strong{display:block;font-size:16px;color:#fff;font-weight:600;margin-bottom:3px}
.check-list span{font-size:14.5px;color:var(--text-dim)}

/* FAQ */
.faq-wrap{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:16px;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.faq-item.is-open{border-color:rgba(101,214,255,.40);background:var(--glass-strong);box-shadow:0 18px 46px rgba(0,90,200,.28)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 22px;background:transparent;border:none;cursor:pointer;
  text-align:left;color:#fff;font-size:16.5px;font-weight:600;
}
.faq-q .q-mark{
  font-family:var(--font-num);font-size:13px;font-weight:700;
  width:30px;height:30px;flex-shrink:0;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(41,166,255,.14);border:1px solid var(--line);color:var(--primary-light);
}
.faq-q .arrow{
  margin-left:auto;width:20px;height:20px;flex-shrink:0;
  transition:transform .3s ease;stroke:var(--primary-light);fill:none;
}
.faq-item.is-open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 22px 22px 66px;color:var(--text-dim);font-size:15px}

/* 关联入口 */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.link-card{
  display:flex;flex-direction:column;gap:10px;
  padding:26px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .26s ease,border-color .26s ease,background .26s ease;
}
.link-card:hover{transform:translateY(-5px);border-color:rgba(101,214,255,.38);background:var(--glass-strong)}
.link-card h3{font-size:17.5px;font-weight:600}
.link-card p{font-size:14.5px;color:var(--text-dim)}
.link-card .link-more{margin-top:6px}

/* CTA + 表单 */
.cta-band{
  position:relative;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  overflow:hidden;
  background:
    radial-gradient(circle at 12% 18%,rgba(30,150,255,.28),transparent 52%),
    radial-gradient(circle at 88% 82%,rgba(16,220,190,.14),transparent 50%),
    rgba(13,24,48,.72);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.10);
  padding:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(122,182,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,182,255,.06) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(circle at 50% 50%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(circle at 50% 50%,#000 30%,transparent 80%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;padding-left:0}
.cta-copy p{color:var(--text-dim);font-size:15.5px}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--text-dim);align-items:flex-start}
.cta-points li svg{width:16px;height:16px;stroke:var(--accent);fill:none;flex-shrink:0;margin-top:5px}
.form-card{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(4,9,18,.55);
  padding:26px;
  display:flex;flex-direction:column;gap:16px;
}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.5px;color:var(--text-dim);font-weight:500}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(0,0,0,.28);
  border:1px solid var(--line);
  color:#fff;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(176,196,224,.45)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(101,214,255,.55);
  box-shadow:0 0 0 3px rgba(40,170,255,.22);
  background:rgba(0,0,0,.38);
}
.field select option{background:#0A1530;color:#fff}
.field textarea{resize:vertical;min-height:96px}
.form-note{font-size:12.5px;color:var(--text-soft)}
.form-msg{font-size:14px;display:none;padding:10px 14px;border-radius:10px}
.form-msg.is-ok{display:block;color:var(--accent);background:rgba(18,231,192,.10);border:1px solid rgba(18,231,192,.28)}
.form-msg.is-err{display:block;color:var(--warn);background:rgba(255,92,122,.10);border:1px solid rgba(255,92,122,.28)}

/* 页脚 */
.site-footer{
  margin-top:40px;
  padding:62px 0 26px;
  background:linear-gradient(180deg,#040912 0%,#071226 100%);
  border-top:1px solid var(--line);
}
.footer-brand-mark{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand-desc{font-size:14px;color:var(--text-dim);max-width:420px;line-height:1.85}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-dim)}
.footer-links a:hover{color:var(--primary-light)}
.footer-contact p{font-size:14px;color:var(--text-dim);margin-bottom:10px}
.footer-contact a{color:var(--primary-light)}
.footer-contact a:hover{text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-soft);
}
.footer-bottom a{color:var(--text-soft)}
.footer-bottom a:hover{color:var(--primary-light)}

/* 响应式 */
@media (max-width:1100px){
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento .glass-card.span-2{grid-column:span 2}
  .steps{grid-template-columns:repeat(3,1fr)}
  .link-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:980px){
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;margin-left:0;
    padding:14px;
    border-radius:24px;
    background:rgba(7,13,28,.96);
    border:1px solid var(--line);
    backdrop-filter:blur(24px);
    -webkit-backdrop-filter:blur(24px);
    box-shadow:0 24px 60px rgba(2,10,28,.7);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-link{padding:13px 16px;border-radius:14px;font-size:15.5px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:rgba(41,166,255,.16)}
  .nav-toggle{display:inline-flex}
  .nav-pill{position:relative}
}
@media (max-width:900px){
  .section{padding:60px 0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item{border-right:none;border-bottom:1px solid var(--line-soft)}
  .stat-item:nth-child(2n){border-right:none}
  .stat-item:nth-last-child(-n+2){border-bottom:none}
  .scene-split{grid-template-columns:1fr}
  .check-panel{grid-template-columns:1fr;padding:28px}
  .cta-band{grid-template-columns:1fr;padding:30px;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px}
  .site-header{padding:12px 16px 8px}
  .nav-pill{padding:9px 10px 9px 14px}
  .brand-text{font-size:15.5px}
  .brand-text small{font-size:9px;letter-spacing:.14em}
  .hero{padding:26px 0 56px}
  .section{padding:52px 0}
  .bento{grid-template-columns:1fr}
  .bento .glass-card.span-2{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .glass-card{padding:22px}
  .hero-visual{padding:16px}
  .faq-a p{padding-left:22px}
  .hero-actions .btn{width:100%}
}
@media (max-width:520px){
  .stat-item{padding:18px 16px}
  .stat-num{font-size:28px}
  .hero h1{font-size:30px}
  .cta-band{padding:22px}
  .form-card{padding:20px}
  .check-panel{padding:22px}
}

/* roulang page: category2 */
:root{
  --bg-deep:#060D1F;
  --bg-mid:#0A1530;
  --bg-panel:rgba(13,24,48,.7);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(125,175,255,.16);
  --line-weak:rgba(255,255,255,.08);
  --brand:#29A6FF;
  --brand-light:#65D6FF;
  --accent:#12E7C0;
  --warn:#FF9066;
  --text:rgba(236,246,255,.92);
  --text-soft:rgba(176,196,224,.72);
  --text-dim:rgba(150,172,205,.55);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(0,90,200,.25);
  --shadow-soft:0 12px 34px rgba(3,10,26,.55);
  --glow:0 0 0 1px rgba(101,214,255,.35),0 18px 46px rgba(20,120,255,.28);
  --gap:24px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"Rajdhani","DIN Alternate","Barlow Condensed",var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg-deep);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 88% -6%,rgba(30,150,255,.30),transparent 62%),
    radial-gradient(680px 460px at 6% 22%,rgba(16,220,190,.13),transparent 60%),
    linear-gradient(180deg,#060D1F 0%,#0A1530 55%,#060D1F 100%);
  background-attachment:fixed;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:var(--brand-light);text-decoration:none;border-bottom:1px solid rgba(101,214,255,.28);transition:color .2s,border-color .2s}
a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.6)}
button,input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.35;font-weight:700;color:#fff}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(40,170,255,.35);border-radius:8px}
::selection{background:rgba(41,166,255,.35)}

.grid-container{max-width:1240px;margin:0 auto;padding:0 24px}
.site-main{display:block}
section{position:relative}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:18px 0 8px}
.nav-pill{
  max-width:1180px;margin:0 auto;padding:10px 12px 10px 18px;
  display:flex;align-items:center;gap:18px;
  background:rgba(7,13,28,.55);
  border:1px solid var(--line);
  border-radius:999px;
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  box-shadow:0 14px 40px rgba(2,8,22,.55);
  transition:background .3s,border-color .3s;
}
.nav-pill.is-scrolled{background:rgba(7,13,28,.88);border-color:rgba(101,214,255,.28)}
.nav-brand{display:flex;align-items:center;gap:10px;border:0;color:#fff;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(41,166,255,.32),rgba(18,231,192,.16));
  border:1px solid rgba(101,214,255,.38);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 8px 20px rgba(20,120,255,.28);
}
.brand-mark svg{width:21px;height:21px;stroke:var(--brand-light)}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;letter-spacing:.02em;line-height:1.15}
.brand-text small{font-family:var(--font-num);font-size:9px;letter-spacing:.22em;color:var(--text-dim);font-weight:500}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0 auto;list-style:none}
.nav-link{
  display:block;padding:9px 14px;border-radius:999px;border:0;
  color:var(--text-soft);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);border:0}
.nav-link.is-active{color:#fff;background:rgba(41,166,255,.16);box-shadow:inset 0 -2px 0 var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;cursor:pointer;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}
.burger{display:block;width:18px;margin:0 auto}
.burger i{display:block;height:2px;margin:4px 0;background:#fff;border-radius:2px;transition:transform .25s,opacity .25s}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;letter-spacing:.02em;line-height:1;
  transition:transform .18s,box-shadow .25s,background .25s,border-color .25s,color .2s;
}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn--primary{
  color:#fff;border-color:rgba(101,214,255,.55);
  background:linear-gradient(160deg,#0F8CFF 0%,#0052FF 100%);
  box-shadow:0 10px 26px rgba(20,110,255,.35),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn--primary:hover{
  color:#fff;transform:translateY(-2px);
  box-shadow:0 16px 40px rgba(30,140,255,.5),0 0 0 4px rgba(41,166,255,.16),inset 0 1px 0 rgba(255,255,255,.4);
}
.btn--ghost{
  color:var(--brand-light);background:rgba(255,255,255,.06);
  border-color:rgba(125,175,255,.3);box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.btn--ghost:hover{color:#fff;background:rgba(41,166,255,.14);border-color:rgba(101,214,255,.55);transform:translateY(-2px)}
.btn--small{padding:10px 18px;font-size:14px}
.btn:active{transform:scale(.98)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;border:0;color:var(--brand-light)}
.link-arrow svg{width:16px;height:16px;transition:transform .25s}
.link-arrow:hover{border:0;color:#fff}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- badges / tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;color:var(--brand-light);
  background:rgba(41,166,255,.12);border:1px solid rgba(101,214,255,.28);
}
.tag--mint{color:var(--accent);background:rgba(18,231,192,.1);border-color:rgba(18,231,192,.3)}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--text-dim);padding:26px 0 0}
.crumb a{color:var(--text-soft);border:0}
.crumb a:hover{color:var(--brand-light)}
.crumb span.sep{opacity:.5}

/* ---------- hero ---------- */
.page-hero{padding:22px 0 10px}
.hero-shell{
  position:relative;overflow:hidden;border-radius:26px;
  border:1px solid var(--line);
  background-image:linear-gradient(115deg,rgba(6,13,31,.94) 0%,rgba(8,20,44,.82) 52%,rgba(6,13,31,.72) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.hero-shell::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(122,182,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(122,182,255,.06) 1px,transparent 1px);
  background-size:52px 52px;opacity:.7;
}
.hero-inner{position:relative;z-index:2;padding:52px 48px 46px;display:grid;grid-template-columns:1.35fr .9fr;gap:36px;align-items:center}
.hero-copy h1{font-size:46px;font-weight:800;letter-spacing:-.01em;margin-bottom:16px}
.hero-copy h1 em{font-style:normal;color:var(--brand-light);text-shadow:0 0 34px rgba(41,166,255,.45)}
.hero-copy p.lead{font-size:16.5px;color:var(--text-soft);max-width:620px;margin-bottom:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-side{
  position:relative;border-radius:var(--radius-lg);padding:24px;
  background:var(--glass);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.22);
}
.hero-side h2{font-size:16px;color:var(--text-soft);font-weight:600;margin-bottom:16px}
.mini-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(125,175,255,.18);font-size:14.5px;color:var(--text-soft)}
.mini-list li:last-child{border-bottom:0}
.mini-list b{color:#fff;font-weight:600}
.mini-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px;flex:0 0 auto;box-shadow:0 0 12px rgba(18,231,192,.8)}

/* ---------- metric strip ---------- */
.metrics{margin:26px 0 0}
.metric-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--bg-panel);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);overflow:hidden;
}
.metric{padding:24px 22px;border-right:1px solid rgba(125,175,255,.12)}
.metric:last-child{border-right:0}
.metric .ico{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;margin-bottom:12px;background:rgba(41,166,255,.14);border:1px solid rgba(101,214,255,.26)}
.metric .ico svg{width:18px;height:18px;stroke:var(--brand-light)}
.metric .num{font-family:var(--font-num);font-size:38px;font-weight:700;line-height:1;color:#fff;letter-spacing:.02em}
.metric .num span{font-size:18px;color:var(--brand-light);margin-left:2px}
.metric .lbl{margin-top:8px;font-size:13.5px;color:var(--text-soft)}
.metric .trend{margin-top:6px;font-size:12px;color:var(--accent)}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section--tight{padding:46px 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:32px;display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:4px;height:26px;border-radius:3px;background:linear-gradient(180deg,var(--brand-light),var(--accent));box-shadow:0 0 18px rgba(41,166,255,.6)}
.section-head p{color:var(--text-soft);margin:0;font-size:15.5px}

/* ---------- cards ---------- */
.card{
  height:100%;padding:28px;border-radius:var(--radius-lg);
  background:var(--glass);border:1px solid rgba(255,255,255,.12);
  border-bottom-color:rgba(125,175,255,.14);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.2);
  transition:transform .26s,border-color .26s,box-shadow .26s;
}
.card:hover{transform:translateY(-5px);border-color:rgba(101,214,255,.42);box-shadow:var(--glow)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--text-soft);font-size:14.6px;margin:0}
.card .card-ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;background:linear-gradient(140deg,rgba(41,166,255,.24),rgba(18,231,192,.12));border:1px solid rgba(101,214,255,.3)}
.card .card-ico svg{width:21px;height:21px;stroke:var(--brand-light)}
.card-grid{display:grid;gap:var(--gap)}
.card-grid--4{grid-template-columns:repeat(4,1fr)}
.card-grid--3{grid-template-columns:repeat(3,1fr)}
.card-grid--2{grid-template-columns:repeat(2,1fr)}

/* staged cards */
.stage{position:relative;padding-top:34px}
.stage .step-no{
  position:absolute;top:-6px;left:26px;font-family:var(--font-num);font-size:15px;font-weight:700;
  padding:5px 13px;border-radius:999px;color:#04101F;background:linear-gradient(120deg,var(--brand-light),var(--accent));
  box-shadow:0 8px 20px rgba(18,231,192,.28);
}

/* ---------- list block ---------- */
.panel{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--bg-panel);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);padding:32px;
}
.check-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(125,175,255,.16);color:var(--text-soft);font-size:15px}
.check-list li:last-child{border-bottom:0}
.check-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;stroke:var(--accent)}
.check-list b{color:#fff;font-weight:600}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.split-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:300px;
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(41,166,255,.22),rgba(6,13,31,.9));
  box-shadow:var(--shadow);
}
.split-media img{width:100%;height:100%;min-height:300px;object-fit:cover;border-radius:0;opacity:.92}
.split-media .float-chip{
  position:absolute;left:18px;bottom:18px;padding:10px 16px;border-radius:999px;font-size:13px;
  background:rgba(7,13,28,.78);border:1px solid rgba(101,214,255,.35);color:var(--brand-light);backdrop-filter:blur(12px);
}
.timeline{border-left:1px solid rgba(125,175,255,.22);padding-left:22px;margin-top:6px}
.timeline li{position:relative;padding:0 0 20px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-28px;top:8px;width:11px;height:11px;border-radius:50%;background:var(--bg-deep);border:2px solid var(--brand-light);box-shadow:0 0 14px rgba(41,166,255,.7)}
.timeline h4{font-size:16px;margin-bottom:4px}
.timeline p{margin:0;color:var(--text-soft);font-size:14.4px}

/* ---------- related entries ---------- */
.entry-card{display:flex;flex-direction:column;gap:14px;text-decoration:none;border:1px solid rgba(255,255,255,.12)}
.entry-card:hover{border-color:rgba(101,214,255,.45);border-bottom-color:rgba(101,214,255,.45)}
.entry-thumb{border-radius:var(--radius-sm);overflow:hidden;height:132px;background:linear-gradient(140deg,rgba(41,166,255,.26),rgba(18,231,192,.12))}
.entry-thumb img{width:100%;height:132px;object-fit:cover;border-radius:0;transition:transform .4s}
.entry-card:hover .entry-thumb img{transform:scale(1.05)}
.entry-card h3{font-size:17px;margin:0;color:#fff}
.entry-card p{margin:0;font-size:14px;color:var(--text-soft)}

/* ---------- faq ---------- */
.faq-item{
  border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(255,255,255,.04);margin-bottom:14px;overflow:hidden;
  transition:border-color .25s,box-shadow .25s;
}
.faq-item.is-open{border-color:rgba(101,214,255,.42);box-shadow:0 0 0 1px rgba(101,214,255,.18)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;cursor:pointer;
  padding:18px 22px;background:transparent;border:0;color:#fff;font-size:16.5px;font-weight:600;
}
.faq-q .qmark{
  width:28px;height:28px;flex:0 0 auto;border-radius:9px;display:grid;place-items:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;color:#04101F;
  background:linear-gradient(130deg,var(--brand-light),var(--accent));
}
.faq-q .arrow{margin-left:auto;width:16px;height:16px;stroke:var(--brand-light);transition:transform .3s}
.faq-item.is-open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{padding:0 22px 20px 64px;color:var(--text-soft);font-size:15px;display:none}
.faq-item.is-open .faq-a{display:block}

/* ---------- form ---------- */
.cta-wrap{
  position:relative;overflow:hidden;border-radius:26px;padding:44px;
  border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(6,13,31,.94),rgba(10,24,52,.86)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.cta-wrap::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(122,182,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(122,182,255,.055) 1px,transparent 1px);
  background-size:46px 46px;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.cta-grid h2{font-size:30px;margin-bottom:14px}
.cta-grid p{color:var(--text-soft)}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:13.5px;color:var(--text-soft);margin-bottom:7px;letter-spacing:.02em}
.form-field input,.form-field select,.form-field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(0,0,0,.24);border:1px solid rgba(125,175,255,.22);color:#fff;
  transition:border-color .2s,box-shadow .2s;
}
.form-field input::placeholder,.form-field textarea::placeholder{color:rgba(150,172,205,.6)}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:rgba(101,214,255,.6);box-shadow:0 0 0 3px rgba(40,170,255,.22);
}
.form-field select option{background:#0A1530;color:#fff}
.form-note{font-size:12.5px;color:var(--text-dim);margin-top:12px}
.form-msg{margin-top:14px;padding:12px 16px;border-radius:12px;font-size:14px;display:none}
.form-msg.ok{display:block;color:var(--accent);background:rgba(18,231,192,.1);border:1px solid rgba(18,231,192,.32)}
.form-msg.err{display:block;color:var(--warn);background:rgba(255,144,102,.1);border:1px solid rgba(255,144,102,.32)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:70px;padding:58px 0 24px;
  background:linear-gradient(180deg,#040912 0%,#071226 100%);
  border-top:1px solid rgba(125,175,255,.14);
}
.footer-brand-mark{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand-desc{color:var(--text-soft);font-size:14.2px;max-width:420px}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-soft);font-size:14.2px;border:0}
.footer-links a:hover{color:var(--brand-light)}
.footer-contact p{color:var(--text-soft);font-size:14.2px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(125,175,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-dim);
}
.footer-bottom a{color:var(--text-dim);border:0}
.footer-bottom a:hover{color:var(--brand-light)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;padding:40px 32px 36px}
  .hero-copy h1{font-size:38px}
  .metric-band{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid rgba(125,175,255,.12)}
  .card-grid--4{grid-template-columns:repeat(2,1fr)}
  .card-grid--3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-wrap{padding:32px}
}
@media (max-width:860px){
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:12px;right:12px;
    flex-direction:column;align-items:stretch;gap:4px;padding:14px;
    background:rgba(7,13,28,.96);border:1px solid var(--line);border-radius:22px;
    box-shadow:0 24px 60px rgba(0,0,0,.6);backdrop-filter:blur(24px);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-link{padding:13px 16px;font-size:15.5px;border-radius:14px}
  .nav-toggle{display:block}
  .nav-pill{position:relative;padding:10px 12px}
  .nav-actions .btn--primary{display:none}
}
@media (max-width:768px){
  .grid-container{padding:0 16px}
  .hero-inner{padding:32px 20px 30px}
  .hero-copy h1{font-size:32px}
  .hero-copy p.lead{font-size:15.4px}
  .section{padding:48px 0}
  .section-head h2{font-size:25px}
  .card-grid--4,.card-grid--3,.card-grid--2{grid-template-columns:1fr}
  .panel{padding:22px}
  .card{padding:22px}
  .cta-wrap{padding:24px 18px;border-radius:20px}
  .faq-a{padding:0 18px 18px 18px}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .page-hero{padding:10px 0 0}
  .hero-shell{border-radius:20px}
  .brand-text{font-size:15.5px}
}
@media (max-width:520px){
  .hero-copy h1{font-size:27px}
  .metric .num{font-size:30px}
  .footer-bottom{flex-direction:column}
  .split-media,.split-media img{min-height:210px}
}

/* roulang page: category4 */
:root{
  --bg:#060D1F;
  --bg-deep:#040912;
  --bg-soft:#0A1530;
  --panel:rgba(13,24,48,.7);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --blue:#29A6FF;
  --blue-hi:#65D6FF;
  --blue-deep:#0052FF;
  --cyan:#12E7C0;
  --warn:#FF5C7A;
  --text:rgba(236,246,255,.92);
  --muted:rgba(176,196,224,.72);
  --line:rgba(125,175,255,.16);
  --line-soft:rgba(255,255,255,.08);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 12px 34px rgba(0,20,60,.35);
  --shadow-2:0 20px 60px rgba(0,90,200,.25);
  --glow:0 0 0 1px rgba(101,214,255,.22), 0 14px 40px rgba(20,140,255,.28);
  --ease:.28s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -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(122,182,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122,182,255,.05) 1px, transparent 1px);
  background-size:64px 64px, 64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--blue-hi);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:#fff;}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.3;font-weight:700;color:#fff;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.15em;}
li{margin:.35em 0;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(40,170,255,.35);border-radius:8px;}
.grid-container{max-width:1220px;padding-left:22px;padding-right:22px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:18px 16px 10px;
}
.nav-pill{
  max-width:1180px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:14px;
  padding:10px 12px 10px 16px;
  border-radius:60px;
  background:rgba(7,13,28,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  box-shadow:0 18px 44px rgba(0,12,40,.45);
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled .nav-pill{
  background:rgba(6,12,26,.86);
  border-color:rgba(125,175,255,.26);
}
.nav-brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:#fff;
}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg, rgba(41,166,255,.28), rgba(18,231,192,.14));
  border:1px solid rgba(125,175,255,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.24);
  flex:0 0 auto;
}
.brand-mark svg{width:21px;height:21px;stroke:var(--blue-hi);}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:17px;
  font-weight:700;
  line-height:1.15;
  letter-spacing:.01em;
}
.brand-text small{
  font-size:9.5px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--muted);
  text-transform:uppercase;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto 0 8px;
  padding:0;
  list-style:none;
}
.nav-menu li{list-style:none;margin:0;}
.nav-link{
  display:block;
  position:relative;
  padding:9px 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{
  color:#fff;
  background:rgba(41,166,255,.14);
  box-shadow:inset 0 -2px 0 rgba(101,214,255,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  cursor:pointer;
}
.burger{display:flex;flex-direction:column;gap:4px;align-items:center;justify-content:center;}
.burger i{display:block;width:18px;height:2px;border-radius:2px;background:var(--blue-hi);transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn svg{width:17px;height:17px;flex:0 0 auto;}
.btn--small{padding:9px 18px;font-size:14px;}
.btn--primary{
  color:#fff;
  background:linear-gradient(140deg,#0F8CFF,#0052FF);
  border-color:rgba(160,220,255,.45);
  box-shadow:var(--glow);
}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(140,225,255,.4),0 20px 48px rgba(20,140,255,.45);}
.btn--ghost{
  color:var(--blue-hi);
  background:rgba(255,255,255,.06);
  border-color:rgba(125,175,255,.3);
}
.btn--ghost:hover{color:#fff;background:rgba(255,255,255,.11);border-color:rgba(150,215,255,.5);transform:translateY(-2px);}
.btn:active{transform:scale(.98);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--cyan);
}
.link-more svg{width:15px;height:15px;transition:transform var(--ease);}
.link-more:hover svg{transform:translateX(5px);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  margin:8px 16px 0;
  border-radius:26px;
  overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(115deg,rgba(6,13,31,.94) 8%,rgba(10,21,48,.78) 52%,rgba(6,13,31,.92) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-2);
}
.page-hero::after{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-200px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(30,150,255,.35), transparent 66%);
  pointer-events:none;
}
.page-hero::before{
  content:"";
  position:absolute;
  width:360px;height:360px;
  left:-120px;bottom:-180px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(16,220,190,.16), transparent 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:1180px;
  margin:0 auto;
  padding:62px 40px 54px;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--blue-hi);}
.breadcrumb span.sep{opacity:.5;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:999px;
  font-size:12.5px;letter-spacing:.08em;
  color:var(--blue-hi);
  background:rgba(41,166,255,.12);
  border:1px solid rgba(125,175,255,.28);
  margin-bottom:20px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  max-width:860px;
  margin-bottom:18px;
  letter-spacing:-.01em;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#65D6FF,#12E7C0);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  max-width:760px;
  font-size:17px;
  color:var(--muted);
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;
  font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-soft);
}
.tag b{color:var(--blue-hi);font-weight:600;}

/* ---------- metric strip ---------- */
.metric-strip{
  position:relative;
  z-index:2;
  max-width:1180px;
  margin:-30px auto 0;
  padding:0 40px 0;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-radius:var(--radius-lg);
}
.metric{
  padding:22px 24px;
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.metric:first-child{border-radius:var(--radius-lg) 0 0 var(--radius-lg);}
.metric:last-child{border-radius:0 var(--radius-lg) var(--radius-lg) 0;}
.metric + .metric{border-left:none;}
.metric-num{
  font-family:"Rajdhani","DIN Alternate",-apple-system,sans-serif;
  font-size:38px;line-height:1.05;font-weight:700;
  color:var(--blue-hi);
  letter-spacing:.02em;
  text-shadow:0 0 26px rgba(41,166,255,.4);
}
.metric-num small{font-size:16px;margin-left:3px;color:var(--muted);}
.metric-label{font-size:14px;color:var(--muted);margin-top:4px;}

/* ---------- sections ---------- */
.section{padding:78px 0;position:relative;}
.section--tight{padding:58px 0;}
.section-head{max-width:740px;margin-bottom:40px;}
.section-eyebrow{
  display:inline-block;
  font-size:12.5px;letter-spacing:.14em;
  color:var(--cyan);
  margin-bottom:12px;
}
.section-title{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:700;
  position:relative;
  padding-left:18px;
  margin-bottom:14px;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:.22em;
  width:4px;height:1em;border-radius:3px;
  background:linear-gradient(180deg,var(--blue-hi),var(--cyan));
}
.section-sub{color:var(--muted);font-size:16px;margin:0;}

/* ---------- cards ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.qa-card{
  position:relative;
  padding:30px 30px 26px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-top-color:rgba(160,215,255,.32);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.qa-card:hover{
  transform:translateY(-6px);
  background:var(--glass-strong);
  border-color:rgba(125,175,255,.34);
  box-shadow:0 24px 54px rgba(0,60,150,.38);
}
.qa-card h3{font-size:20px;margin-bottom:10px;}
.qa-card p{color:var(--muted);font-size:15px;margin-bottom:14px;}
.qa-icon{
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(41,166,255,.22),rgba(18,231,192,.12));
  border:1px solid rgba(125,175,255,.28);
  margin-bottom:18px;
}
.qa-icon svg{width:22px;height:22px;stroke:var(--blue-hi);}
.mini-list{list-style:none;padding:0;margin:0;}
.mini-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--muted);
}
.mini-list li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;
  background:var(--cyan);
  transform:rotate(45deg);
}

/* ---------- feature split ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:44px;
  align-items:center;
}
.split-media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  background:linear-gradient(140deg,rgba(41,166,255,.2),rgba(18,231,192,.08));
}
.split-media img{
  width:100%;
  height:340px;
  object-fit:cover;
}
.split-body h3{font-size:22px;margin-bottom:12px;}
.split-body p{color:var(--muted);}
.dot-list{list-style:none;padding:0;margin:18px 0 0;}
.dot-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;
  border-top:1px solid var(--line-soft);
  color:var(--muted);
  font-size:15px;
}
.dot-list li:first-child{border-top:none;}
.dot-list b{color:#fff;font-weight:600;min-width:78px;display:inline-block;}

/* ---------- steps ---------- */
.step-flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  counter-reset:step;
}
.step{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius-md);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1);
  transition:transform var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-5px);border-color:rgba(125,175,255,.34);}
.step-num{
  font-family:"Rajdhani","DIN Alternate",sans-serif;
  font-size:15px;font-weight:700;letter-spacing:.1em;
  color:var(--cyan);
  display:block;margin-bottom:12px;
}
.step h4{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- entry links ---------- */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.entry-card{
  display:flex;
  gap:18px;
  padding:24px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line-soft);
  border-top-color:rgba(160,215,255,.3);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.entry-card:hover{transform:translateY(-5px);border-color:rgba(125,175,255,.36);background:var(--glass-strong);}
.entry-thumb{
  width:104px;height:78px;flex:0 0 auto;
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(41,166,255,.28),rgba(18,231,192,.12));
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;}
.entry-card h3{font-size:18px;margin-bottom:6px;}
.entry-card p{font-size:14.5px;color:var(--muted);margin-bottom:8px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  border-radius:var(--radius-md);
  background:var(--panel);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item.is-open{border-color:rgba(125,175,255,.38);background:rgba(13,24,48,.86);}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  background:none;border:none;
  text-align:left;
  font-size:16.5px;font-weight:600;color:#fff;
  cursor:pointer;
}
.faq-q .q-mark{
  flex:0 0 auto;
  width:30px;height:30px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  color:var(--blue-hi);
  background:rgba(41,166,255,.14);
  border:1px solid rgba(125,175,255,.28);
}
.faq-q .arrow{
  margin-left:auto;flex:0 0 auto;
  width:18px;height:18px;
  stroke:var(--muted);
  transition:transform var(--ease),stroke var(--ease);
}
.faq-item.is-open .faq-q .arrow{transform:rotate(180deg);stroke:var(--cyan);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 24px 22px 70px;
  color:var(--muted);
  font-size:15px;
}

/* ---------- CTA form ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(6,13,31,.93),rgba(10,21,48,.8)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-2);
  padding:52px 44px;
}
.cta-panel::after{
  content:"";
  position:absolute;
  width:420px;height:420px;right:-120px;top:-160px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(16,220,190,.18), transparent 68%);
  pointer-events:none;
}
.cta-grid{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:44px;
  align-items:start;
}
.cta-grid h2{font-size:clamp(23px,2.6vw,31px);margin-bottom:14px;}
.cta-grid p{color:var(--muted);}
.value-list{list-style:none;padding:0;margin:22px 0 0;}
.value-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--muted);
  padding:9px 0;
}
.value-list svg{width:17px;height:17px;stroke:var(--cyan);flex:0 0 auto;margin-top:5px;}
.form-card{
  padding:30px;
  border-radius:var(--radius-lg);
  background:rgba(6,13,31,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:7px;
}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  background:rgba(0,0,0,.24);
  border:1px solid var(--line);
  color:var(--text);
  font-size:15px;
  transition:border-color var(--ease),background var(--ease);
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:rgba(176,196,224,.5);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(101,214,255,.6);
  background:rgba(0,0,0,.34);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-actions{margin-top:6px;}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px;}
.alert{
  padding:12px 16px;
  border-radius:var(--radius-sm);
  font-size:14px;
  margin-bottom:18px;
  border:1px solid transparent;
}
.alert--success{color:#8ef3dd;background:rgba(18,231,192,.12);border-color:rgba(18,231,192,.35);}
.alert--error{color:#ffb3c1;background:rgba(255,92,122,.12);border-color:rgba(255,92,122,.35);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:82px;
  padding:66px 0 0;
  background:linear-gradient(180deg,#040912,#071226);
  border-top:1px solid var(--line);
  position:relative;
  z-index:1;
}
.footer-brand-mark{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:#fff;
  margin-bottom:16px;
}
.footer-brand-desc{color:var(--muted);font-size:14.5px;max-width:400px;}
.footer-title{font-size:15px;margin-bottom:16px;color:#fff;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin:0 0 10px;}
.footer-links a{color:var(--muted);font-size:14.5px;}
.footer-links a:hover{color:var(--blue-hi);}
.footer-contact p{color:var(--muted);font-size:14.5px;margin-bottom:10px;}
.footer-contact a{color:var(--blue-hi);}
.footer-bottom{
  margin-top:54px;
  padding:20px 0 26px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--blue-hi);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-menu{gap:0;}
  .nav-link{padding:8px 11px;font-size:14px;}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .metric{border-radius:var(--radius-md) !important;border-left:1px solid var(--line);}
  .step-flow{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:30px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-panel{padding:40px 30px;}
}
@media (max-width:860px){
  .site-header{padding:14px 12px 8px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-pill{padding:8px 10px 8px 14px;gap:10px;}
  .nav-menu{
    position:absolute;
    left:12px;right:12px;top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin:0;
    padding:14px;
    border-radius:22px;
    background:rgba(6,12,26,.96);
    border:1px solid var(--line);
    backdrop-filter:blur(24px);
    -webkit-backdrop-filter:blur(24px);
    box-shadow:0 26px 60px rgba(0,10,35,.6);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{padding:13px 16px;border-radius:14px;font-size:15.5px;}
  .nav-link.is-active{box-shadow:inset 0 0 0 1px rgba(101,214,255,.45);}
  .brand-text{font-size:15.5px;}
  .brand-text small{font-size:8.5px;letter-spacing:.12em;}
  .page-hero{margin:6px 12px 0;border-radius:20px;}
  .hero-inner{padding:40px 22px 44px;}
  .metric-strip{padding:0 22px;margin-top:-22px;gap:14px;grid-template-columns:repeat(2,1fr);}
  .metric{border-radius:var(--radius-md) !important;border:1px solid var(--line);}
  .card-grid,.entry-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .faq-a-inner{padding:0 20px 20px 20px;}
  .faq-q{padding:17px 18px;gap:12px;font-size:15.5px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .site-header{padding:12px 8px 6px;}
  .nav-pill{padding:7px 8px 7px 12px;}
  .brand-mark{width:34px;height:34px;}
  .brand-mark svg{width:18px;height:18px;}
  .nav-actions .btn--small span{display:none;}
  .nav-actions .btn--small{padding:10px 12px;}
  .page-hero{margin:6px 10px 0;border-radius:18px;}
  .hero-inner{padding:32px 16px 36px;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .metric-strip{padding:0 16px;grid-template-columns:1fr 1fr;gap:10px;}
  .metric{padding:16px;border-radius:14px !important;}
  .metric-num{font-size:30px;}
  .metric-label{font-size:12.5px;}
  .qa-card{padding:22px 20px;}
  .entry-card{flex-direction:column;gap:14px;}
  .entry-thumb{width:100%;height:132px;}
  .step-flow{grid-template-columns:1fr;}
  .field-row{grid-template-columns:1fr;}
  .cta-panel{padding:28px 18px;border-radius:20px;}
  .form-card{padding:20px;}
  .split-media img{height:210px;}
  .footer-bottom{flex-direction:column;}
}