/* roulang page: index */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1220;
  --main:#1FE0C4;
  --main-deep:#0FA890;
  --main-soft:rgba(31,224,196,.12);
  --main-line:rgba(31,224,196,.25);
  --accent:#FF7A3D;
  --txt:#E8EEF6;
  --txt-2:#9FB0C6;
  --txt-3:#6B7C93;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.10);
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow:0 20px 50px rgba(0,0,0,.45);
  --gap:24px;
  --sec:96px;
  --font-cn:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--txt);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-top:72px;
}
body.foundation,body{color:var(--txt);}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--main);text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease,transform .22s ease;}
a:hover{color:var(--main);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--main);outline-offset:3px;border-radius:4px;}
::selection{background:rgba(31,224,196,.28);color:#fff;}

.grid-container{
  max-width:1200px;
  width:100%;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.grid-margin-y{margin-top:-12px;margin-bottom:-12px;}
.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:900;
  height:72px;
  display:flex;
  align-items:center;
  background:rgba(5,8,15,.72);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:22px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
  color:var(--txt);
}
.brand:hover{color:var(--txt);}
.brand-mark{
  width:34px;height:34px;
  flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(140deg,var(--main),var(--main-deep));
  color:#04120F;
  font-weight:700;
  font-size:16px;
  letter-spacing:0;
  box-shadow:0 8px 22px rgba(31,224,196,.26);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--txt);
  white-space:nowrap;
}
.brand-text small{
  font-size:11px;
  color:var(--txt-3);
  letter-spacing:.06em;
  white-space:nowrap;
}
.nav-divider{
  width:1px;height:26px;
  background:var(--line);
  flex:0 0 1px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:22px;
  margin-left:2px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--txt-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;bottom:0;
  width:16px;height:2px;
  background:var(--main);
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform .25s ease;
  border-radius:2px;
}
.nav-links a:hover{color:var(--txt);}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(.6);}
.nav-links a.is-active{color:var(--main);}
.nav-links a.is-active::after{transform:translateX(-50%) scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--glass-line);
  border-radius:10px;
  background:transparent;
  align-items:center;justify-content:center;
  padding:0;
}
.nav-toggle span{
  display:block;width:18px;height:1.5px;background:var(--txt);
  position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--txt);
  transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  min-height:44px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#1FE0C4,#12B6A6);
  color:#04120F;
  border-color:rgba(31,224,196,.6);
  box-shadow:0 8px 24px rgba(31,224,196,.18);
}
.btn-primary:hover{
  color:#04120F;
  transform:translateY(-1px);
  box-shadow:0 10px 30px rgba(31,224,196,.35);
  border-color:rgba(31,224,196,.9);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(31,224,196,.2);}
.btn-ghost{
  background:transparent;
  color:var(--txt);
  border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{
  color:var(--main);
  border-color:var(--main);
  background:rgba(31,224,196,.08);
}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--main);font-size:15px;font-weight:600;
  background:none;border:none;padding:0;
}
.btn-text .arw{transition:transform .22s ease;font-family:var(--font-num);}
.btn-text:hover .arw{transform:translateX(3px);}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:620px;
  display:flex;
  align-items:center;
  padding:72px 0 64px;
  overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.62) 0%,rgba(5,8,15,.82) 55%,rgba(5,8,15,.97) 100%);
  z-index:1;
}
.hero>.grid-container{position:relative;z-index:2;}
.hero-title{
  font-size:clamp(28px,4vw,54px);
  line-height:1.14;
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:20px;
  max-width:14em;
}
.hero-title em{
  font-style:normal;
  color:var(--main);
}
.hero-sub{
  font-size:17px;
  color:var(--txt-2);
  line-height:1.75;
  max-width:30em;
  margin-bottom:32px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-mini{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:22px;
  max-width:520px;
}
.hero-mini li{
  flex:1 1 0;
  min-width:120px;
  padding-right:18px;
  border-right:1px solid var(--line);
}
.hero-mini li:last-child{border-right:none;padding-right:0;}
.hero-mini li:not(:first-child){padding-left:18px;}
.hero-mini b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:22px;
  font-weight:700;
  color:var(--txt);
  letter-spacing:-.01em;
}
.hero-mini span{font-size:13px;color:var(--txt-3);}
.hero-panel{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  padding:20px;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
}
.hero-panel-img{
  border-radius:14px;
  overflow:hidden;
  position:relative;
  margin-bottom:18px;
  border:1px solid var(--glass-line);
}
.hero-panel-img img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.hero-panel-img::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,8,15,.9));
}
.hero-panel-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:13px 0;
  border-bottom:1px solid var(--line);
}
.hero-panel-row:last-child{border-bottom:none;padding-bottom:2px;}
.hero-panel-row span{font-size:14px;color:var(--txt-2);}
.hero-panel-row b{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  color:var(--main);
  font-weight:700;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--main-soft);
  border:1px solid var(--main-line);
  color:var(--main);
  font-size:12px;
  font-weight:500;
  letter-spacing:.04em;
  line-height:1.7;
}

/* ---------- sections ---------- */
.section{padding:var(--sec) 0;}
.section-alt{background:var(--bg-1);}
.sec-head{margin-bottom:48px;}
.sec-head h2{
  font-size:32px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.sec-head p{font-size:15px;color:var(--txt-2);max-width:44em;}
.sec-head-row{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  flex-wrap:wrap;
}
.sticky-block{position:sticky;top:112px;}

/* ---------- service list ---------- */
.svc-list{border-top:1px solid var(--line);}
.svc-item{
  display:flex;
  gap:22px;
  align-items:flex-start;
  padding:28px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease;
}
.svc-item:hover{background:rgba(255,255,255,.02);}
.svc-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:20px;
  font-weight:700;
  color:var(--txt-3);
  flex:0 0 46px;
  transition:color .25s ease;
  line-height:1.5;
}
.svc-item:hover .svc-num{color:var(--main);}
.svc-body{flex:1 1 auto;}
.svc-body h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:8px;
  transition:transform .25s ease,color .25s ease;
}
.svc-item:hover .svc-body h3{transform:translateX(4px);color:var(--main);}
.svc-body p{font-size:15px;color:var(--txt-2);max-width:36em;}
.svc-arrow{
  color:var(--txt-3);
  font-family:var(--font-num);
  font-size:18px;
  flex:0 0 auto;
  padding-top:2px;
  transition:transform .25s ease,color .25s ease;
}
.svc-item:hover .svc-arrow{transform:translateX(3px);color:var(--main);}

/* ---------- stats ---------- */
.stats{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.stats-grid{display:flex;flex-wrap:wrap;}
.stat{
  flex:1 1 25%;
  max-width:25%;
  padding:8px 24px;
  border-right:1px solid var(--line);
}
.stat:last-child{border-right:none;}
.stat b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:clamp(34px,4vw,52px);
  line-height:1.1;
  font-weight:700;
  color:var(--main);
  letter-spacing:-.03em;
}
.stat b i{
  font-style:normal;
  font-size:.5em;
  color:var(--txt-2);
  margin-left:4px;
  font-weight:600;
}
.stat span{display:block;font-size:14px;color:var(--txt-2);margin-top:8px;}

/* ---------- cases ---------- */
.case-card{
  position:relative;
  display:block;
  border-radius:18px;
  overflow:hidden;
  border:1px solid var(--glass-line);
  background:var(--bg-1);
}
.case-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.case-card::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 38%,rgba(5,8,15,.92));
  transition:opacity .35s ease;
}
.case-card:hover img{transform:scale(1.03);}
.case-card:hover::after{opacity:.92;}
.case-cap{
  position:absolute;
  left:24px;right:24px;bottom:22px;
  z-index:2;
}
.case-cap h3{
  font-size:20px;
  font-weight:600;
  color:#fff;
  margin-bottom:6px;
}
.case-cap p{font-size:13px;color:var(--txt-2);}
.case-large .case-cap h3{font-size:26px;}
.case-large img{aspect-ratio:16/10;}
.case-small img{aspect-ratio:16/11;}

/* ---------- news cards ---------- */
.news-card{
  position:relative;
  display:flex;
  flex-direction:column;
  height:100%;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform .25s ease,border-color .25s ease,background-color .25s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:var(--main-line);
  background:rgba(31,224,196,.05);
}
.news-card .badge{margin-bottom:14px;align-self:flex-start;}
.news-card h3{
  font-size:17px;
  line-height:1.55;
  font-weight:600;
  margin-bottom:10px;
  color:var(--txt);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card p{
  font-size:14px;
  color:var(--txt-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:18px;
}
.news-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.news-time{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  color:var(--txt-3);
}
.news-arrow{
  font-family:var(--font-num);
  font-size:16px;
  color:var(--txt-3);
  transition:transform .25s ease,color .25s ease;
}
.news-card:hover .news-arrow{transform:translate(2px,-2px);color:var(--main);}
.news-card .card-link{position:absolute;inset:0;z-index:3;font-size:0;color:transparent;}
.empty-state{
  width:100%;
  padding:44px 24px;
  text-align:center;
  border:1px dashed var(--glass-line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.empty-state p{font-size:15px;color:var(--txt-3);margin-bottom:16px;}

/* ---------- flow ---------- */
.flow-row{align-items:center;margin-bottom:72px;}
.flow-row:last-child{margin-bottom:0;}
.flow-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.flow-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.flow-body h3{font-size:26px;font-weight:700;line-height:1.35;margin-bottom:14px;letter-spacing:-.01em;}
.flow-body>p{font-size:15px;color:var(--txt-2);margin-bottom:28px;}
.steps{position:relative;}
.steps::before{
  content:"";
  position:absolute;
  left:7px;top:14px;bottom:14px;
  width:1px;
  background:var(--line);
}
.step{
  position:relative;
  padding-left:34px;
  padding-bottom:24px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:15px;height:15px;
  border-radius:50%;
  background:var(--main);
  box-shadow:0 0 0 4px rgba(31,224,196,.14);
}
.step h4{font-size:17px;font-weight:600;margin-bottom:4px;}
.step p{font-size:14px;color:var(--txt-2);margin:0;}

/* ---------- faq ---------- */
.faq-wrap{max-width:760px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:18px;
  min-height:64px;
  padding:16px 0;
  background:none;
  border:none;
  text-align:left;
  color:var(--txt);
  font-size:17px;
  font-weight:500;
  line-height:1.6;
  transition:color .22s ease;
}
.faq-q:hover{color:var(--main);}
.faq-q .idx{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  color:var(--txt-3);
  flex:0 0 26px;
}
.faq-q .sign{
  margin-left:auto;
  font-family:var(--font-num);
  font-size:20px;
  font-weight:400;
  color:var(--main);
  flex:0 0 auto;
  line-height:1;
  transition:transform .25s ease;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a p{
  font-size:15px;
  color:var(--txt-2);
  padding:0 40px 0 44px;
  margin-bottom:0;
}
.faq-item.is-open .faq-a{padding-bottom:24px;}

/* ---------- contact ---------- */
.contact-card{
  padding:48px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
}
.contact-card h2{font-size:30px;font-weight:700;line-height:1.3;margin-bottom:12px;letter-spacing:-.01em;}
.contact-card .lead{font-size:15px;color:var(--txt-2);margin-bottom:28px;}
.contact-list{margin-bottom:28px;}
.contact-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--txt-2);
}
.contact-list li:last-child{border-bottom:none;}
.contact-list .ico{
  width:26px;height:26px;flex:0 0 26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:8px;
  background:var(--main-soft);
  border:1px solid var(--main-line);
  color:var(--main);
  font-family:var(--font-num);
  font-size:12px;
  font-weight:700;
}
.qr-box{
  width:112px;height:112px;
  border-radius:14px;
  border:1px solid var(--glass-line);
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 6px,rgba(255,255,255,.015) 6px 12px);
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  font-size:12px;
  color:var(--txt-3);
  line-height:1.6;
  padding:10px;
}
.form-grid{display:flex;flex-wrap:wrap;margin-left:-10px;margin-right:-10px;}
.field{
  padding:0 10px;
  margin-bottom:18px;
  width:100%;
}
.field.half{width:50%;}
.field label{
  display:block;
  font-size:13px;
  color:var(--txt-2);
  margin-bottom:7px;
  letter-spacing:.02em;
}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:14px 16px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.12);
  color:var(--txt);
  font-size:15px;
  line-height:1.5;
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
  appearance:none;
  -webkit-appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--txt-2) 50%),linear-gradient(135deg,var(--txt-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.field textarea{min-height:112px;resize:vertical;}
.field input::placeholder,
.field textarea::placeholder{color:var(--txt-3);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--main);
  box-shadow:0 0 0 3px rgba(31,224,196,.18);
  background:rgba(31,224,196,.04);
}
.field select option{background:#0A1220;color:var(--txt);}
.check-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--txt-2);
  line-height:1.7;
}
.check-line input{
  width:18px;height:18px;
  margin-top:3px;
  accent-color:var(--main);
  flex:0 0 18px;
}
.form-note{font-size:12px;color:var(--txt-3);margin-top:12px;}
.form-msg{
  display:none;
  margin-top:16px;
  padding:12px 16px;
  border-radius:var(--r-btn);
  background:var(--main-soft);
  border:1px solid var(--main-line);
  color:var(--main);
  font-size:14px;
}
.form-msg.show{display:block;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  padding:64px 0 0;
  background:var(--bg-1);
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,224,196,.5),transparent);
}
.foot-brand strong{
  display:block;
  font-size:17px;
  font-weight:700;
  margin:14px 0 10px;
  line-height:1.5;
}
.foot-brand p{font-size:14px;color:var(--txt-3);line-height:1.8;max-width:22em;}
.foot-col h4{
  font-size:14px;
  color:var(--main);
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:var(--txt-2);}
.foot-col a:hover{color:var(--main);}
.foot-col p{font-size:14px;color:var(--txt-2);line-height:1.9;}
.foot-bottom{
  margin-top:48px;
  padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--txt-3);
}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:950;
  background:rgba(5,8,15,.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  display:flex;
  flex-direction:column;
  padding:20px 20px 32px;
  transform:translateY(-100%);
  opacity:0;
  visibility:hidden;
  transition:transform .35s ease,opacity .3s ease,visibility .3s ease;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;
  border:1px solid var(--glass-line);
  border-radius:10px;
  background:transparent;
  color:var(--txt);
  font-size:20px;
  line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.drawer-nav{flex:1 1 auto;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 0;
  font-size:22px;
  font-weight:600;
  color:var(--txt);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--main);}
.drawer-nav a span{font-family:var(--font-num);font-size:14px;color:var(--txt-3);}
.drawer-cta{padding-top:24px;}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .hero{min-height:560px;}
  .section{padding:80px 0;}
  .stat{flex:1 1 50%;max-width:50%;padding:18px 24px;border-right:1px solid var(--line);}
  .stat:nth-child(2n){border-right:none;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);padding-bottom:26px;}
  .stat:nth-child(3),.stat:nth-child(4){padding-top:26px;}
}
@media screen and (max-width:1023px){
  body{padding-top:64px;}
  .site-header,.nav-wrap{height:64px;}
  .nav-links{display:none;}
  .nav-divider{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn{display:none;}
  .hero{min-height:540px;padding:56px 0 56px;}
  .hero-panel{margin-top:36px;}
  .sticky-block{position:static;margin-bottom:32px;}
  .case-small{margin-top:24px;}
  .contact-card{padding:32px;}
  .section{padding:72px 0;}
}
@media screen and (max-width:767px){
  body{font-size:15px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .brand-text strong{font-size:13px;}
  .brand-text small{display:none;}
  .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:14px;}
  .hero{min-height:520px;padding:44px 0 48px;}
  .hero-title{max-width:none;margin-bottom:16px;}
  .hero-sub{font-size:15px;margin-bottom:26px;}
  .hero-cta{gap:12px;margin-bottom:32px;}
  .hero-cta .btn{width:100%;}
  .hero-mini li{flex:1 1 100%;min-width:0;border-right:none;padding:10px 0 !important;border-bottom:1px solid var(--line);}
  .hero-mini li:last-child{border-bottom:none;}
  .section{padding:56px 0;}
  .sec-head{margin-bottom:32px;}
  .sec-head h2{font-size:24px;}
  .stats{padding:40px 0;}
  .stat{flex:1 1 50%;max-width:50%;padding:14px 16px;border-right:1px solid var(--line);}
  .stat:nth-child(2n){border-right:none;}
  .stat b i{font-size:.45em;}
  .svc-item{gap:14px;padding:22px 0;}
  .svc-num{flex:0 0 34px;font-size:17px;}
  .svc-body h3{font-size:17px;}
  .svc-arrow{display:none;}
  .case-cap{left:18px;right:18px;bottom:16px;}
  .case-large .case-cap h3{font-size:20px;}
  .case-cap h3{font-size:17px;}
  .flow-body h3{font-size:21px;}
  .flow-row{margin-bottom:48px;}
  .flow-body{margin-top:24px;}
  .faq-q{font-size:16px;min-height:56px;padding:14px 0;}
  .faq-a p{padding:0 0 0 44px;}
  .contact-card{padding:24px;}
  .contact-card h2{font-size:23px;}
  .field.half{width:100%;}
  .site-footer{padding-top:48px;}
  .foot-bottom{margin-top:32px;font-size:11px;}
  .drawer-nav a{font-size:19px;padding:17px 0;}
}
@media screen and (max-width:479px){
  .hero-title{font-size:26px;}
  .sec-head h2{font-size:21px;}
  .stat b{font-size:30px;}
  .news-card{padding:20px;}
  .btn{font-size:14px;padding:12px 20px;}
}

/* roulang page: article */
:root{
  --bg:#05080F;
  --bg-1:#0A1220;
  --main:#1FE0C4;
  --main-deep:#0FA890;
  --main-soft:rgba(31,224,196,0.12);
  --accent:#FF7A3D;
  --text:#E8EEF6;
  --text-2:#9FB0C6;
  --text-3:#6B7C93;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.18);
  --glass:rgba(255,255,255,0.045);
  --glass-line:rgba(255,255,255,0.10);
  --r-sm:10px;
  --r:16px;
  --r-lg:20px;
  --shadow:0 20px 50px rgba(0,0,0,0.45);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --num:Inter,"DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(760px 420px at 82% -8%, rgba(31,224,196,0.10), transparent 70%),
    radial-gradient(560px 360px at 6% 12%, rgba(255,122,61,0.06), transparent 72%);
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--main);text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease}
a:hover{color:#7FF3E2}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-0.01em;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--main);outline-offset:2px}
::selection{background:rgba(31,224,196,0.28);color:#fff}

.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}

/* ---------- 顶部进度条 ---------- */
.progress-bar{
  position:fixed;top:0;left:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--main-deep),var(--main));
  z-index:200;transition:width .12s linear;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:150;
  height:72px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,0.78);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex:none}
.brand:hover{color:var(--text)}
.brand-mark{
  display:grid;place-items:center;width:40px;height:40px;flex:none;
  border-radius:12px;font-size:18px;font-weight:700;color:#04120F;
  background:linear-gradient(140deg,var(--main),var(--main-deep));
  box-shadow:0 8px 22px rgba(31,224,196,0.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;font-weight:600;letter-spacing:0.01em}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:0.02em;margin-top:3px}
.nav-divider{width:1px;height:28px;background:var(--line);flex:none}
.nav-links{display:flex;align-items:center;gap:22px;flex:1;flex-wrap:wrap}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;letter-spacing:0.02em;
  color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav-links a:hover{color:var(--text)}
.nav-links a.is-active{color:var(--main)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:0;bottom:-4px;width:16px;height:2px;
  background:var(--main);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;cursor:pointer;
  background:transparent;border:1px solid var(--line-strong);border-radius:12px;position:relative;
}
.nav-toggle span{position:absolute;left:12px;right:12px;top:50%;height:1.5px;background:var(--text);transform:translateY(-50%)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;right:0;height:1.5px;background:var(--text)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;left:0;right:0;top:60px;bottom:0;z-index:140;
  display:none;padding:24px 20px 40px;
  background:rgba(5,8,15,0.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:18px 2px;font-size:22px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:hover{color:var(--main)}
.mobile-drawer .drawer-cta{margin-top:24px}
.mobile-drawer .drawer-note{margin-top:20px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:13px 24px;
  border-radius:var(--r-sm);border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--main),var(--main-deep));
  color:#04120F;border-color:rgba(31,224,196,0.5);
}
.btn-primary:hover{color:#04120F;transform:translateY(-1px);box-shadow:0 10px 30px rgba(31,224,196,0.35)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--main);background:var(--main-soft);color:var(--main)}
.btn-sm{padding:10px 18px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--main)}
.text-link::after{content:"→";transition:transform .22s ease}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- 通用徽章 / 分隔 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:500;
  color:var(--main);background:var(--main-soft);
  border:1px solid rgba(31,224,196,0.25);white-space:nowrap;
}
.rule{height:1px;background:var(--line);border:0;margin:32px 0}

/* ---------- 文章头部 ---------- */
.article-hero{padding:44px 0 8px;position:relative;z-index:1}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--main)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text)}
.article-shell{max-width:780px;margin:0 auto}
.article-head{padding-top:26px}
.article-head h1{
  margin:16px 0 18px;
  font-size:clamp(26px,3.4vw,36px);
  line-height:1.32;font-weight:700;letter-spacing:-0.02em;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);
}
.article-meta time,.article-meta .num{font-family:var(--num);font-variant-numeric:tabular-nums}
.article-meta .dot{color:var(--text-3);opacity:.7}

/* ---------- 文章正文 ---------- */
.article-main{padding:8px 0 0;position:relative;z-index:1}
.article-body{
  font-size:16px;line-height:1.85;color:var(--text-2);
  word-break:break-word;
}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0 0 1.2em;color:var(--text-2)}
.article-body h2{
  font-size:22px;line-height:1.5;color:var(--text);font-weight:600;
  padding-left:14px;border-left:3px solid var(--main);
  margin:2em 0 0.8em;
}
.article-body h3{
  font-size:18px;line-height:1.6;color:var(--main);font-weight:600;
  margin:1.8em 0 0.7em;
}
.article-body h4{font-size:17px;color:var(--text);margin:1.6em 0 0.6em}
.article-body strong{color:var(--text);font-weight:600}
.article-body a{color:var(--main);border-bottom:1px solid rgba(31,224,196,0.35)}
.article-body a:hover{border-bottom-color:var(--main)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none}
.article-body li{position:relative;padding-left:22px;margin-bottom:0.6em;color:var(--text-2)}
.article-body ul > li::before{
  content:"";position:absolute;left:0;top:0.72em;width:6px;height:6px;
  background:var(--main);border-radius:1px;
}
.article-body ol{counter-reset:artnum}
.article-body ol > li{counter-increment:artnum}
.article-body ol > li::before{
  content:counter(artnum,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--num);
  font-size:13px;color:var(--main);font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  background:var(--glass);border-left:2px solid var(--main);
  border-radius:0 12px 12px 0;color:var(--text-2);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;height:auto;border-radius:12px;
  border:1px solid var(--glass-line);margin:1.4em 0 0.6em;
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body thead th{
  background:rgba(255,255,255,0.05);color:var(--text);
  font-weight:600;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,0.025)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;color:#9FF6E8;background:rgba(255,255,255,0.07);
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:#070C15;border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;overflow-x:auto;margin:1.6em 0;
}
.article-body pre code{background:none;padding:0;color:#C9D6E8;font-size:13.5px;line-height:1.7}
.article-body hr{height:1px;border:0;background:var(--line);margin:2em 0}

/* ---------- 空态 ---------- */
.empty-state{
  padding:48px 28px;text-align:center;
  background:var(--glass);border:1px solid var(--glass-line);
  border-radius:var(--r);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--text-3);font-size:15px;max-width:32em;margin:0 auto 24px}

/* ---------- 文末标签与返回 ---------- */
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:18px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-list span{
  padding:6px 14px;border-radius:999px;font-size:12px;color:var(--text-2);
  background:rgba(255,255,255,0.04);border:1px solid var(--line);
}
.tag-list span:hover{color:var(--main);border-color:rgba(31,224,196,0.4)}

/* ---------- 继续阅读 ---------- */
.related{padding:72px 0 0;position:relative;z-index:1}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;flex-wrap:wrap;
}
.sec-head h2{font-size:26px;line-height:1.3}
.sec-head p{font-size:14px;color:var(--text-3);margin:8px 0 0}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(31,224,196,0.4);box-shadow:var(--shadow)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,8,15,0.85));
}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--text)}
.rel-body p{font-size:14px;line-height:1.7;color:var(--text-3);margin:0;flex:1}
.rel-body .text-link{font-size:13px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;padding:64px 0 0;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(31,224,196,0.45),transparent) 1;
  background:linear-gradient(180deg,rgba(10,18,32,0),var(--bg-1));
  position:relative;z-index:1;
}
.foot-brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.foot-brand strong{font-size:17px;font-weight:600;color:var(--text)}
.foot-brand p{font-size:14px;color:var(--text-3);margin:0;max-width:22em;line-height:1.7}
.foot-col h4{font-size:14px;font-weight:600;color:var(--main);margin:0 0 16px;letter-spacing:0.02em}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{font-size:14px;color:var(--text-2)}
.foot-col ul a:hover{color:var(--main)}
.foot-col p{font-size:14px;color:var(--text-3);margin:0 0 10px;line-height:1.7}
.foot-bottom{
  margin-top:56px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:12px;color:var(--text-3);letter-spacing:0.02em;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .rel-grid{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:1023px){
  .nav-links{gap:16px}
  .nav-links a{font-size:14px}
  .brand-text small{display:none}
  .article-hero{padding-top:32px}
  .related{padding-top:56px}
}
@media screen and (max-width:899px){
  .nav-links{display:none}
  .nav-divider{display:none}
  .nav-toggle{display:block}
  .nav-actions .btn-primary{display:none}
  .mobile-drawer .drawer-cta .btn{width:100%}
}
@media screen and (max-width:767px){
  body{padding-top:60px}
  .site-header,.nav-wrap{height:60px}
  .brand-mark{width:36px;height:36px;border-radius:10px;font-size:16px}
  .brand-text strong{font-size:14px}
  .grid-container{padding-left:20px;padding-right:20px}
  .article-head h1{font-size:26px;line-height:1.36}
  .article-body{font-size:15.5px;line-height:1.85}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .article-body table{font-size:13px}
  .article-body th,.article-body td{padding:10px}
  .rel-grid{grid-template-columns:1fr;gap:18px}
  .sec-head h2{font-size:22px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:64px;padding-top:48px}
  .foot-bottom{margin-top:36px;flex-direction:column;gap:6px}
  .related{padding-top:48px}
}
@media screen and (max-width:479px){
  .article-head h1{font-size:23px}
  .article-meta{font-size:12px;gap:8px}
  .btn{padding:12px 20px;font-size:14px}
  .empty-state{padding:36px 20px}
  .article-body img,.article-body figure img{border-radius:10px}
}

/* roulang page: category1 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1220;
  --main:#1FE0C4;
  --main-deep:#0FA890;
  --main-soft:rgba(31,224,196,0.12);
  --accent:#FF7A3D;
  --text:#E8EEF6;
  --text-2:#9FB0C6;
  --text-3:#6B7C93;
  --line:rgba(255,255,255,0.08);
  --glass:rgba(255,255,255,0.045);
  --glass-line:rgba(255,255,255,0.10);
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 20px 50px rgba(0,0,0,0.45);
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate",ui-monospace,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
body.drawer-open{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--main);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(31,224,196,0.28);color:#fff;}

/* ---------- 容器 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x > .cell{padding-left:12px;padding-right:12px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  height:72px;
  background:rgba(5,8,15,0.55);
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,0.86);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  height:72px;display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#1FE0C4,#0FA890);
  color:#04120F;font-weight:700;font-size:18px;
  box-shadow:0 8px 24px rgba(31,224,196,0.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:15px;font-weight:600;letter-spacing:0.01em;color:var(--text);white-space:nowrap;}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:0.02em;white-space:nowrap;}
.nav-divider{width:1px;height:24px;background:var(--line);flex-shrink:0;}
.nav-links{display:flex;align-items:center;gap:22px;}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;
  letter-spacing:0.02em;color:var(--text-2);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:16px;height:2px;
  background:var(--main);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--main);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:0.01em;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,#1FE0C4,#12B6A6);color:#04120F;
  border:1px solid rgba(31,224,196,0.6);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 30px rgba(31,224,196,0.35);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(255,255,255,0.18);
}
.btn-ghost:hover{border-color:var(--main);background:rgba(31,224,196,0.08);color:var(--main);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--main);font-size:15px;font-weight:600;
}
.btn-text::after{content:"→";transition:transform .22s ease;font-size:15px;}
.btn-text:hover::after{transform:translateX(3px);}

/* ---------- 移动抽屉 ---------- */
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);
}
.nav-toggle span{position:relative;display:block;width:18px;height:1.5px;background:var(--text);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--text);border-radius:2px;
  transition:transform .25s ease,opacity .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  position:fixed;inset:0;z-index:200;display:none;
  flex-direction:column;
  background:rgba(5,8,15,0.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:20px 20px 32px;
}
.mobile-drawer.is-open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:28px;}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-2);
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:20px 4px;font-size:22px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--main);}
.drawer-foot{margin-top:auto;padding-top:28px;}
.drawer-foot .btn{width:100%;height:50px;}

/* ---------- 分类页横幅 ---------- */
.page-banner{
  position:relative;min-height:280px;
  display:flex;align-items:flex-end;
  padding:64px 0 40px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  background-color:var(--bg-1);
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,0.35) 0%,rgba(5,8,15,0.82) 62%,rgba(5,8,15,0.98) 100%);
}
.banner-inner{position:relative;z-index:2;width:100%;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--main);}
.breadcrumb span.sep{color:rgba(255,255,255,0.22);}
.breadcrumb .current{color:var(--text-2);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12px;font-weight:500;letter-spacing:0.02em;
  color:var(--main);background:var(--main-soft);
  border:1px solid rgba(31,224,196,0.25);
}
.page-banner h1{
  margin-top:18px;
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.2;font-weight:700;letter-spacing:-0.02em;
  color:var(--text);
}
.banner-lead{
  margin-top:14px;max-width:640px;
  font-size:16px;color:var(--text-2);
}

/* ---------- 主体布局 ---------- */
.main-section{padding:72px 0 96px;position:relative;}
.toc-wrap{position:relative;}
.toc{
  position:sticky;top:96px;
  display:flex;flex-direction:column;
}
.toc-title{
  font-size:12px;letter-spacing:0.14em;color:var(--text-3);
  text-transform:uppercase;margin-bottom:16px;font-weight:600;
  font-family:var(--font-num);
}
.toc a{
  display:block;padding:11px 0 11px 16px;
  border-left:2px solid rgba(255,255,255,0.10);
  font-size:14px;color:var(--text-2);line-height:1.5;
  transition:color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.toc a:hover{color:var(--text);padding-left:20px;}
.toc a.is-active{color:var(--main);border-left-color:var(--main);}

.guide-section{margin-bottom:64px;scroll-margin-top:100px;}
.guide-section:last-of-type{margin-bottom:0;}
.section-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:0.12em;color:var(--main);
  display:block;margin-bottom:10px;
}
.guide-section h2{
  font-size:26px;line-height:1.3;font-weight:700;letter-spacing:-0.01em;
  padding-left:14px;border-left:3px solid var(--main);
  margin-bottom:22px;
}
.guide-section p{color:var(--text-2);font-size:16px;line-height:1.85;margin-bottom:18px;}
.guide-section p strong{color:var(--text);font-weight:600;}
.guide-figure{
  margin-top:26px;border-radius:14px;overflow:hidden;
  border:1px solid rgba(255,255,255,0.10);
  box-shadow:0 20px 50px rgba(0,0,0,0.35);
}
.guide-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.guide-figure figcaption{
  padding:12px 16px;font-size:13px;color:var(--text-3);
  background:rgba(255,255,255,0.03);border-top:1px solid var(--line);
}

.check-list{margin:4px 0 22px;}
.check-list li{
  position:relative;padding-left:26px;margin-bottom:12px;
  color:var(--text-2);font-size:15.5px;line-height:1.8;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:var(--main);opacity:0.85;
}

.tip-card{
  margin-top:24px;padding:22px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.tip-card h3{
  font-size:15px;font-weight:600;color:var(--main);
  margin-bottom:8px;letter-spacing:0.01em;
}
.tip-card p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-block{margin-top:8px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:500;color:var(--text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--main);}
.faq-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--main);flex-shrink:0;width:24px;
}
.faq-item summary .plus{
  margin-left:auto;color:var(--main);font-size:20px;line-height:1;
  font-weight:300;flex-shrink:0;transition:transform .25s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-answer{
  padding:0 0 24px 40px;
  font-size:15px;color:var(--text-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:56px;
  padding:36px 40px;
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(31,224,196,0.10),rgba(255,255,255,0.035) 55%);
  border:1px solid rgba(31,224,196,0.22);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:24px;font-weight:700;letter-spacing:-0.01em;margin-bottom:8px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 内链 ---------- */
.next-links{
  margin-top:56px;padding-top:32px;
  border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
.next-link{
  display:block;padding:20px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--glass-line);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.next-link:hover{transform:translateY(-4px);border-color:rgba(31,224,196,0.45);background:rgba(31,224,196,0.06);}
.next-link span{display:block;font-size:12px;color:var(--text-3);letter-spacing:0.1em;margin-bottom:6px;font-family:var(--font-num);}
.next-link strong{display:block;font-size:16px;font-weight:600;color:var(--text);margin-bottom:6px;}
.next-link em{font-style:normal;font-size:13.5px;color:var(--text-2);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-0);
  padding:64px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,224,196,0.55),transparent);
}
.foot-brand{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px;}
.foot-brand strong{font-size:16px;font-weight:600;color:var(--text);}
.foot-brand p{
  width:100%;font-size:14px;color:var(--text-2);line-height:1.75;margin:0;max-width:300px;
}
.foot-col h4{
  font-size:14px;font-weight:600;color:var(--main);
  margin-bottom:16px;letter-spacing:0.02em;
}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul li a{font-size:14px;color:var(--text-2);}
.foot-col ul li a:hover{color:var(--main);}
.foot-col p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:8px;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}
.foot-bottom a{color:var(--text-3);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .next-links{grid-template-columns:repeat(3,1fr);}
}
@media screen and (max-width:1023px){
  body{padding-top:60px;}
  .site-header{height:60px;}
  .nav-wrap{height:60px;gap:14px;}
  .nav-links,.nav-divider{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-primary{display:none;}
  .brand-text small{display:none;}
  .brand-text strong{font-size:14px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .main-section{padding:56px 0 72px;}
  .toc{
    position:static;flex-direction:row;flex-wrap:wrap;gap:8px;
    margin-bottom:40px;padding-bottom:20px;border-bottom:1px solid var(--line);
  }
  .toc-title{width:100%;margin-bottom:6px;}
  .toc a{
    border:1px solid var(--line);border-radius:999px;
    padding:8px 16px;font-size:13px;background:rgba(255,255,255,0.03);
  }
  .toc a:hover{padding-left:16px;}
  .toc a.is-active{border-color:rgba(31,224,196,0.5);background:var(--main-soft);border-left-width:1px;}
  .next-links{grid-template-columns:1fr;}
  .cta-band{padding:28px 24px;}
  .page-banner{padding:48px 0 34px;min-height:240px;}
}
@media screen and (max-width:767px){
  .grid-x{margin-left:-8px;margin-right:-8px;}
  .grid-x > .cell{padding-left:8px;padding-right:8px;}
  .guide-section{margin-bottom:48px;}
  .guide-section h2{font-size:22px;margin-bottom:18px;}
  .guide-section p{font-size:15.5px;}
  .faq-item summary{font-size:15.5px;gap:12px;padding:20px 0;}
  .faq-answer{padding-left:0;font-size:14.5px;}
  .cta-band h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;min-width:140px;}
  .site-footer{padding:48px 0 24px;}
  .foot-col{margin-bottom:28px;}
  .foot-col h4{margin-bottom:12px;}
  .banner-lead{font-size:15px;}
}
@media screen and (max-width:519px){
  .brand-mark{width:34px;height:34px;font-size:16px;border-radius:10px;}
  .brand-text strong{font-size:13px;}
  .page-banner h1{font-size:26px;}
  .guide-section h2{font-size:20px;}
  .guide-figure figcaption{font-size:12px;}
  .next-link{padding:18px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1220;
  --main:#1FE0C4;
  --main-dark:#0FA890;
  --main-deep:#12B6A6;
  --main-soft:rgba(31,224,196,.12);
  --main-line:rgba(31,224,196,.25);
  --accent:#FF7A3D;
  --text:#E8EEF6;
  --text-2:#9FB0C6;
  --text-3:#6B7C93;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.10);
  --line-3:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.03);
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 20px 50px rgba(0,0,0,.45);
  --ease:.25s ease;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate","SF Mono",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 78% -8%,rgba(31,224,196,.10),transparent 62%),
    radial-gradient(760px 480px at 6% 12%,rgba(255,122,61,.06),transparent 60%);
  z-index:0;
}
h1,h2,h3,h4,h5{
  font-family:var(--font);
  color:var(--text);
  margin:0;
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1.28;
}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--main);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
a:hover{color:#5cf0da}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--main);
  outline-offset:3px;
  border-radius:6px;
}
img{max-width:100%;display:block;border-style:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
strong{font-weight:600}
::selection{background:rgba(31,224,196,.28);color:#fff}

.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  height:72px;
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.74);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--main),var(--main-dark));
  color:#04120F;
  font-weight:700;
  font-size:17px;
  letter-spacing:0;
  box-shadow:0 8px 22px rgba(31,224,196,.22);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.02em;white-space:nowrap;margin-top:2px}
.nav-divider{width:1px;height:24px;background:var(--line-2);flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:22px;flex-wrap:nowrap}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--text-2);
  padding:8px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:16px;height:2px;
  background:var(--main);
  border-radius:2px;
  opacity:0;
  transform:translateY(3px);
  transition:opacity var(--ease),transform var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a.is-active{color:var(--main)}
.nav-links a.is-active::after{opacity:1;transform:translateY(0)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;position:relative;z-index:130}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-2);
  border-radius:10px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.03);
}
.nav-toggle span{display:block;position:relative;width:18px;height:1.5px;background:var(--text);border-radius:2px;transition:background var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--text);border-radius:2px;
  transition:transform var(--ease),top var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--main),var(--main-deep));
  color:#04120F;
  box-shadow:0 10px 26px rgba(31,224,196,.20);
}
.btn-primary:hover{
  color:#04120F;
  transform:translateY(-1px);
  box-shadow:0 10px 30px rgba(31,224,196,.35);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(31,224,196,.24)}
.btn-ghost{
  background:transparent;
  border:1px solid var(--line-3);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--main);
  background:rgba(31,224,196,.08);
  color:var(--text);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--main);font-weight:500;font-size:15px;
  border-bottom:1px solid transparent;
}
.btn-link i{font-size:12px;transition:transform var(--ease)}
.btn-link:hover i{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  font-size:12px;
  line-height:1.7;
  color:var(--main);
  background:var(--main-soft);
  border:1px solid var(--main-line);
  border-radius:var(--r-pill);
  letter-spacing:.02em;
  white-space:nowrap;
}
.badge-accent{color:var(--accent);background:rgba(255,122,61,.10);border-color:rgba(255,122,61,.28)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;
  color:var(--main);
  text-transform:uppercase;
  margin-bottom:18px;
  font-family:var(--font-num);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--main);display:block}

/* ============ 内页 Banner ============ */
.page-hero{
  position:relative;
  padding:158px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(5,8,15,.72) 0%,rgba(5,8,15,.88) 58%,var(--bg-0) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.92;
  z-index:0;
}
.page-hero .grid-container{position:relative;z-index:1}
.page-hero h1{
  font-size:clamp(28px,4vw,50px);
  line-height:1.14;
  letter-spacing:-.02em;
  font-weight:700;
  max-width:20em;
  margin-bottom:18px;
}
.page-hero .lede{
  max-width:640px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.9;
  margin-bottom:26px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;color:var(--text-3)}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--main);font-size:12px}

/* ============ 筛选标签行 ============ */
.filter-bar{
  padding:34px 0 0;
  position:relative;
  z-index:2;
}
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-2);
  background:var(--glass);
  color:var(--text-2);
  font-size:14px;
  letter-spacing:.01em;
  transition:all var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--line-3);transform:translateY(-1px)}
.chip.is-active{
  color:var(--main);
  border-color:var(--main);
  background:rgba(31,224,196,.09);
  box-shadow:0 0 0 3px rgba(31,224,196,.08);
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;position:relative;z-index:1}
.section-tight{padding:64px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.015em}
.section-head p{color:var(--text-2);font-size:15px;max-width:560px;margin-top:10px;margin-bottom:0}
.section-head .head-link{flex-shrink:0}

/* ============ 卡片网格 ============ */
.card-grid{margin-top:6px}
.grid-card{
  position:relative;
  height:100%;
  display:flex;
  flex-direction:column;
  padding:26px 24px 22px;
  border-radius:var(--r-card);
  border:1px solid var(--line-2);
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset;
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
  overflow:hidden;
}
.grid-card:hover{
  transform:translateY(-4px);
  border-color:var(--main-line);
  background:rgba(255,255,255,.065);
}
.grid-card .card-num{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--main);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.grid-card h3{
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:12px;
}
.grid-card h3 a{color:var(--text);display:block}
.grid-card h3 a:hover{color:var(--main)}
.grid-card p{
  font-size:14.5px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:20px;
}
.grid-card .card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.grid-card .card-foot .tag{font-size:12px;color:var(--text-3);letter-spacing:.02em}
.grid-card .card-arrow{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-2);
  color:var(--text-2);
  font-size:12px;
  transition:all var(--ease);
}
.grid-card:hover .card-arrow{border-color:var(--main);color:var(--main);background:rgba(31,224,196,.10)}
.grid-card .stretch-link{position:absolute;inset:0;z-index:1;border-radius:var(--r-card)}
.grid-card .stretch-link:focus-visible{outline-offset:-4px}

/* ============ 图文区块 ============ */
.split-block{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split-media{position:relative;border-radius:var(--r-big);overflow:hidden;border:1px solid var(--line-2)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 42%,rgba(5,8,15,.86) 100%);
  pointer-events:none;
}
.split-media .media-cap{
  position:absolute;left:22px;bottom:18px;right:22px;
  z-index:2;
  font-size:13px;color:var(--text-2);
  display:flex;align-items:center;gap:8px;
}
.split-media .media-cap i{color:var(--main)}
.split-copy h2{font-size:clamp(24px,3vw,30px);font-weight:700;margin-bottom:16px}
.split-copy p{color:var(--text-2);font-size:15.5px;line-height:1.9;margin-bottom:14px}
.split-copy .btn-link{margin-top:8px}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);margin-top:8px}
.step{
  position:relative;
  padding:32px 24px 8px 0;
}
.step:not(:last-child){border-right:1px solid var(--line)}
.step .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--main);
  box-shadow:0 0 0 5px rgba(31,224,196,.12);
  position:absolute;top:-5px;left:0;
}
.step .step-num{
  font-family:var(--font-num);
  font-size:12px;letter-spacing:.14em;color:var(--main);
  font-variant-numeric:tabular-nums;
  display:block;margin-bottom:10px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;padding-right:8px;margin-bottom:0}

/* 清单 */
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:0 44px;border-top:1px solid var(--line);margin-top:10px}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;color:var(--text-2);line-height:1.8;
}
.checklist li i{color:var(--main);font-size:13px;margin-top:7px;flex-shrink:0}
.checklist li strong{color:var(--text);font-weight:600;margin-right:6px}

/* ============ FAQ ============ */
.faq-wrap{max-width:780px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;
  min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  text-align:left;
  padding:16px 0;
  color:var(--text);
  font-size:16.5px;
  font-weight:500;
  line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--main)}
.faq-q .q-left{display:flex;align-items:flex-start;gap:16px}
.faq-q .q-num{
  font-family:var(--font-num);
  font-size:13px;color:var(--main);
  font-variant-numeric:tabular-nums;
  padding-top:3px;
  flex-shrink:0;
}
.faq-q .q-icon{
  width:26px;height:26px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  color:var(--main);
  font-size:18px;font-weight:400;line-height:1;
  border:1px solid var(--line-2);
  border-radius:50%;
  transition:all var(--ease);
}
.faq-item.is-open .q-icon{background:rgba(31,224,196,.12);border-color:var(--main-line)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a-inner{
  padding:0 0 24px 32px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.9;
  max-width:660px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:var(--r-big);
  border:1px solid var(--line-2);
  background:linear-gradient(120deg,rgba(31,224,196,.10),rgba(255,255,255,.035) 46%,rgba(255,122,61,.06));
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--main),transparent);
  opacity:.7;
}
.cta-band h2{font-size:clamp(21px,2.6vw,27px);font-weight:700;margin-bottom:8px}
.cta-band p{color:var(--text-2);font-size:15px;margin-bottom:0;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 表单 ============ */
.form-panel{
  border-radius:var(--r-card);
  border:1px solid var(--line-2);
  background:var(--glass-2);
  padding:28px 26px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--text-2);letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;
  padding:14px 16px;
  font-family:inherit;
  font-size:15px;
  color:var(--text);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-btn);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
  appearance:none;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--main);
  box-shadow:0 0 0 3px rgba(31,224,196,.18);
  background:rgba(255,255,255,.05);
}
.field select{color:var(--text-2)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-3);line-height:1.7}
.check-row input{width:18px;height:18px;flex-shrink:0;margin-top:2px;accent-color:var(--main)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--bg-0);
  padding:64px 0 0;
  margin-top:40px;
  z-index:1;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,224,196,.55),transparent);
}
.foot-brand{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.foot-brand strong{font-size:16px;font-weight:600}
.foot-brand p{font-size:14px;color:var(--text-3);max-width:280px;margin:0}
.foot-col h4{
  font-size:14px;font-weight:600;color:var(--main);
  letter-spacing:.04em;margin-bottom:16px;
}
.foot-col ul li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--text-2)}
.foot-col a:hover{color:var(--main)}
.foot-col p{font-size:14px;color:var(--text-2);margin-bottom:8px;line-height:1.8}
.foot-bottom{
  margin-top:48px;
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);letter-spacing:.02em;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-divider{display:none}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:fixed;
    inset:0;
    z-index:125;
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:0;
    padding:96px 28px 120px;
    background:rgba(5,8,15,.96);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    opacity:0;
    pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .28s ease,transform .28s ease;
  }
  body.nav-open .nav-links{opacity:1;pointer-events:auto;transform:none}
  .nav-links a{
    width:100%;
    font-size:26px;
    font-weight:600;
    color:var(--text);
    padding:20px 0;
    border-bottom:1px solid var(--line);
  }
  .nav-links a.is-active{color:var(--main)}
  .nav-links a::after{display:none}
  .brand-text small{display:none}
  .split-block{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(2){border-right:0}
  .step{border-bottom:1px solid var(--line);padding-bottom:24px}
  .step:nth-child(3),.step:nth-child(4){border-bottom:0}
  .page-hero{padding:132px 0 48px}
  .section{padding:64px 0}
  .cta-band{padding:34px 28px}
}
@media screen and (max-width:767px){
  .container,.grid-container{padding-left:20px;padding-right:20px}
  .site-header{height:60px}
  .nav-wrap{height:60px}
  .brand-mark{width:34px;height:34px;font-size:15px;border-radius:9px}
  .brand-text strong{font-size:14px}
  .page-hero{padding:112px 0 40px}
  .page-hero h1{font-size:28px;line-height:1.24}
  .page-hero .lede{font-size:15px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:30px}
  .grid-card{padding:22px 20px 18px}
  .checklist{grid-template-columns:1fr;gap:0}
  .steps{grid-template-columns:1fr}
  .step{border-right:0 !important;padding-right:0;border-bottom:1px solid var(--line);padding-bottom:22px}
  .step:last-child{border-bottom:0}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px;border-radius:var(--r-card)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .faq-q{font-size:15.5px;min-height:56px}
  .faq-a-inner{padding-left:0}
  .foot-bottom{margin-top:34px}
}
@media screen and (max-width:479px){
  .page-hero h1{font-size:24px}
  .grid-card h3{font-size:17.5px}
  .btn{min-height:44px;font-size:14px}
  .nav-links a{font-size:22px;padding:17px 0}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1220;
  --main:#1FE0C4;
  --main-deep:#0FA890;
  --main-soft:rgba(31,224,196,.12);
  --accent:#FF7A3D;
  --text:#E8EEF6;
  --text-2:#9FB0C6;
  --text-3:#6B7C93;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.045);
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow:0 20px 50px rgba(0,0,0,.45);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 80% -6%,rgba(31,224,196,.10),transparent 62%),
    radial-gradient(760px 460px at 6% 16%,rgba(255,122,61,.045),transparent 60%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em;color:var(--text)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--main);text-decoration:none;transition:color .2s ease}
a:hover{color:#7BF2DE}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--main);outline-offset:3px;border-radius:6px}
::selection{background:rgba(31,224,196,.28);color:#fff}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.26}
.section-desc{color:var(--text-2);font-size:15px;max-width:560px;margin:12px 0 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;color:var(--main);margin-bottom:16px;font-weight:600}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--main);display:block}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(135deg,#1FE0C4,#12B6A6);color:#04120F;box-shadow:0 8px 24px rgba(31,224,196,.22)}
.btn-primary:hover{color:#04120F;transform:translateY(-1px);box-shadow:0 10px 30px rgba(31,224,196,.35),inset 0 0 0 1px rgba(255,255,255,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(31,224,196,.28)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--main);background:rgba(31,224,196,.08);color:#fff}
.btn-ghost:active{background:rgba(31,224,196,.14)}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--main)}
.link-more svg{transition:transform .22s ease}
.link-more:hover svg{transform:translateX(3px)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--main);background:var(--main-soft);border:1px solid rgba(31,224,196,.25);
  letter-spacing:.03em;
}
.badge-accent{color:var(--accent);background:rgba(255,122,61,.1);border-color:rgba(255,122,61,.3)}

/* 顶部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;height:72px;z-index:120;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.74);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;height:72px;gap:22px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#1FE0C4,#0FA890);color:#04120F;
  font-weight:800;font-size:18px;flex-shrink:0;
  box-shadow:0 6px 18px rgba(31,224,196,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text small{font-size:11px;color:var(--text-3);margin-top:3px;white-space:nowrap}
.nav-divider{width:1px;height:26px;background:var(--line-2);flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:4px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;letter-spacing:.02em;
  color:var(--text-2);padding:8px 0;white-space:nowrap;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-1px;width:16px;height:2px;border-radius:2px;
  background:var(--main);opacity:0;transform:scaleX(.35);transform-origin:left;
  transition:opacity .25s ease,transform .25s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a.is-active{color:var(--main)}
.nav-links a.is-active::after{opacity:1;transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-2);
  background:transparent;cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:1.5px;background:var(--text);border-radius:2px;
  transition:background .2s ease;
}
.nav-toggle span{top:50%;margin-top:-.75px}
.nav-toggle span::before{content:"";top:-6px}
.nav-toggle span::after{content:"";top:6px}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:140;display:flex;flex-direction:column;justify-content:center;
  padding:92px 28px 40px;background:rgba(5,8,15,.94);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-close{
  position:absolute;top:16px;right:20px;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-2);background:transparent;color:var(--text);
  font-size:20px;line-height:1;cursor:pointer;
}
.drawer-links a{
  display:block;font-size:26px;font-weight:600;color:var(--text);
  padding:18px 0;border-bottom:1px solid var(--line);letter-spacing:.01em;
}
.drawer-links a.is-active{color:var(--main)}
.drawer-foot{margin-top:30px}
.drawer-foot .btn{width:100%}

/* Hero */
.cat-hero{position:relative;padding:172px 0 92px;text-align:center;overflow:hidden;isolation:isolate}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;opacity:.4;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(5,8,15,.74) 0%,rgba(5,8,15,.88) 54%,var(--bg-0) 100%);
}
.hero-inner{max-width:860px;margin:0 auto}
.cat-hero h1{font-size:clamp(28px,4vw,50px);line-height:1.16;letter-spacing:-.02em;margin-top:20px}
.hero-sub{margin:20px auto 0;max-width:620px;font-size:17px;color:var(--text-2);line-height:1.8}
.hero-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:34px}

/* 指标条 */
.metric-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(10,18,32,.72)}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric{padding:32px 26px;border-left:1px solid var(--line);text-align:left}
.metric:first-child{border-left:0}
.metric-num{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(30px,3.4vw,44px);font-weight:700;color:var(--main);line-height:1.05;
}
.metric-num em{font-style:normal;font-size:15px;font-weight:600;margin-left:6px;color:var(--text-2)}
.metric-label{display:block;margin-top:10px;font-size:14px;color:var(--text-3);line-height:1.6}

/* 卡片网格 */
.info-grid{row-gap:24px}
.info-grid>.cell{display:flex}
.info-card{
  width:100%;display:flex;flex-direction:column;gap:14px;
  padding:28px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(31,224,196,.45);background:rgba(255,255,255,.07)}
.card-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  color:var(--main);background:var(--main-soft);border:1px solid rgba(31,224,196,.24);
  flex-shrink:0;
}
.card-icon svg{width:22px;height:22px}
.info-card h3{font-size:20px;letter-spacing:-.01em}
.info-card p{color:var(--text-2);font-size:15px;line-height:1.82;margin:0}
.card-foot{margin-top:auto;padding-top:6px}

/* 流程 */
.flow-figure{margin:0}
.flow-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line-2);
  filter:saturate(1.05);
}
.flow-cap{margin-top:12px;font-size:13px;color:var(--text-3)}
.steps{margin-top:8px}
.steps li{position:relative;padding-left:38px;padding-bottom:28px}
.steps li:last-child{padding-bottom:0}
.steps li::before{
  content:"";position:absolute;left:0;top:7px;width:11px;height:11px;border-radius:50%;
  background:var(--main);box-shadow:0 0 0 4px rgba(31,224,196,.14);
}
.steps li:not(:last-child)::after{
  content:"";position:absolute;left:5px;top:24px;bottom:2px;width:1px;background:var(--line-2);
}
.step-title{display:flex;align-items:baseline;gap:10px;font-size:18px;font-weight:600;margin-bottom:6px}
.step-title span{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;color:var(--main);font-weight:700}
.steps p{color:var(--text-2);font-size:15px;line-height:1.82;margin:0}

/* FAQ */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;min-height:64px;
  padding:20px 0;background:none;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:17px;font-weight:500;line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--main)}
.faq-idx{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;color:var(--main);font-weight:700;flex-shrink:0;min-width:24px}
.faq-sign{margin-left:auto;font-size:20px;line-height:1;color:var(--text-3);flex-shrink:0;transition:color .2s ease}
.faq-item.is-open .faq-sign{color:var(--main)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .25s ease,opacity .25s ease,padding .25s ease}
.faq-item.is-open .faq-a{max-height:360px;opacity:1;padding-bottom:24px}
.faq-a p{margin:0 0 0 42px;color:var(--text-2);font-size:15px;line-height:1.85}

/* CTA */
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:42px 44px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(31,224,196,.14),rgba(255,255,255,.035) 62%);
  border:1px solid rgba(31,224,196,.28);
  box-shadow:var(--shadow);
}
.cta-bar::after{
  content:"";position:absolute;right:-60px;top:-80px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,196,.22),transparent 68%);pointer-events:none;
}
.cta-bar h2{font-size:clamp(21px,2.3vw,26px);line-height:1.35;max-width:560px}
.cta-bar p{margin:12px 0 0;color:var(--text-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.related-links{
  margin-top:34px;font-size:14px;color:var(--text-3);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
}
.related-links strong{color:var(--text-2);font-weight:600}
.related-links a{color:var(--text-2);border-bottom:1px solid rgba(31,224,196,.3);padding-bottom:2px}
.related-links a:hover{color:var(--main);border-bottom-color:var(--main)}

/* 页脚 */
.site-footer{position:relative;border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 0;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,224,196,.55),transparent);
}
.foot-brand{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.foot-brand strong{font-size:16px;letter-spacing:.01em}
.foot-brand p{color:var(--text-3);font-size:13px;margin:0;line-height:1.7}
.foot-col h4{font-size:14px;color:var(--main);margin:0 0 16px;letter-spacing:.04em;font-weight:600}
.foot-col li{margin-bottom:10px}
.foot-col a{color:var(--text-2);font-size:14px}
.foot-col a:hover{color:var(--main)}
.foot-col p{color:var(--text-2);font-size:14px;margin:0 0 10px;line-height:1.7}
.foot-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}

/* 响应式 */
@media screen and (max-width:1023px){
  .nav-links,.nav-divider{display:none}
  .nav-toggle{display:block}
  .nav-actions .btn{display:none}
  .section{padding:72px 0}
  .cat-hero{padding:140px 0 76px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(3){border-left:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-bar{padding:34px 30px}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px}
  .site-header{height:60px}
  .nav-wrap{height:60px}
  .brand-text strong{font-size:14px}
  .brand-text small{display:none}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:30px}
  .cat-hero{padding:118px 0 60px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .metric{padding:24px 18px}
  .info-card{padding:24px}
  .faq-q{min-height:56px;font-size:16px;gap:12px}
  .faq-a p{margin-left:0}
  .cta-bar{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-bottom{justify-content:flex-start}
  .drawer-links a{font-size:23px;padding:16px 0}
}
@media screen and (max-width:520px){
  .cat-hero h1{font-size:26px;line-height:1.28}
  .metric-grid{grid-template-columns:1fr}
  .metric{border-left:0;border-bottom:1px solid var(--line);padding:20px 4px}
  .metric:last-child{border-bottom:0}
  .info-card h3{font-size:18px}
  .section-title{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}