/* roulang page: index */
:root{
  --bg:#060A13;
  --bg-900:#0A111F;
  --bg-800:#0E1729;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(47,107,255,.35);
  --primary:#2F6BFF;
  --primary-soft:rgba(47,107,255,.14);
  --accent:#21E6C1;
  --warm:#FFB65C;
  --text:#E9EFFB;
  --text-2:#9FB0C9;
  --text-3:#67788F;
  --ok:#2BD98B;
  --warn:#FF7A6B;
  --info:#59A9FF;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-btn:0 0 0 1px rgba(47,107,255,.5),0 10px 30px -8px rgba(47,107,255,.65);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:96px;
}
*,*::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","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--text);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:0;color:var(--text);}
h1{font-size:44px;line-height:1.28;}
h2{font-size:32px;line-height:1.35;}
h3{font-size:22px;line-height:1.45;}
h4{font-size:18px;line-height:1.55;}
p{margin:0 0 1.2em;color:var(--text-2);line-height:1.85;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.row{margin-left:-12px;margin-right:-12px;}
.row::before,.row::after{content:"";display:table;clear:both;}
.columns,.column{padding-left:12px;padding-right:12px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(6,10,19,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,19,.92);box-shadow:0 12px 30px -20px rgba(0,0,0,.95);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(47,107,255,.95),rgba(33,230,193,.55));
  box-shadow:0 8px 22px -10px rgba(47,107,255,.9);
  color:#fff;font-size:15px;font-weight:700;flex:0 0 auto;
}
.brand-name{font-size:18px;font-weight:600;letter-spacing:0;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:24px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:72px;
  font-size:15px;
  color:var(--text-2);
  letter-spacing:0;
  transition:color .2s var(--ease);
}
.site-header.is-scrolled .nav-link{height:64px;}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:0;right:0;bottom:16px;height:2px;
  background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  font-size:14px;
  transition:all .2s var(--ease);
}
.mega-trigger:hover,.mega-trigger.is-open{color:var(--text);border-color:var(--line-strong);background:rgba(47,107,255,.12);}
.mega-trigger i{font-size:11px;transition:transform .2s var(--ease);}
.mega-trigger.is-open i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:640px;
  padding:22px;
  border-radius:var(--radius-lg);
  background:rgba(10,17,31,.94);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:12px;letter-spacing:.04em;color:var(--text-3);margin-bottom:12px;text-transform:uppercase;}
.mega-link{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px;border-radius:12px;
  border:1px solid transparent;
  transition:all .2s var(--ease);
}
.mega-link:hover{background:var(--glass);border-color:var(--line);}
.mega-link .ico{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(33,230,193,.1);color:var(--accent);font-size:14px;
}
.mega-link strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;}
.mega-link span{display:block;font-size:12px;color:var(--text-3);line-height:1.6;margin-top:2px;}
.mega-post{
  display:block;padding:12px;border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  margin-bottom:12px;
  transition:all .2s var(--ease);
}
.mega-post:last-child{margin-bottom:0;}
.mega-post:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.mega-post time{display:block;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;margin-bottom:4px;}
.mega-post strong{font-size:14px;font-weight:600;color:var(--text);line-height:1.5;display:block;}
.menu-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  align-items:center;justify-content:center;
  color:var(--text);font-size:17px;
}
.drawer{
  display:none;
  position:fixed;left:0;right:0;top:0;
  z-index:300;
  background:rgba(6,10,19,.98);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  padding:18px 20px 26px;
  transform:translateY(-102%);
  transition:transform .28s var(--ease);
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text);font-size:17px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);font-size:15px;
}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--text);}
.drawer-list a.is-active{color:var(--accent);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:0;
  transition:all .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);color:#fff;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{color:#fff;background:#3D77FF;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,107,255,.6),0 16px 38px -10px rgba(47,107,255,.8);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(255,255,255,.18);
}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent);background:rgba(33,230,193,.07);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--text-2);
}
.link-arrow i{transition:transform .2s var(--ease);font-size:12px;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Badge / Tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border-radius:999px;
  font-size:12px;line-height:18px;letter-spacing:0;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
}
.badge-accent{color:var(--accent);border-color:rgba(33,230,193,.35);background:rgba(33,230,193,.08);}
.badge-warm{color:var(--warm);border-color:rgba(255,182,92,.35);background:rgba(255,182,92,.08);}
.badge-primary{color:#9DB9FF;border-color:var(--line-strong);background:rgba(47,107,255,.12);}

/* ---------- Sections ---------- */
.section{padding:var(--gap-section) 0;}
.section-alt{background:var(--bg-900);}
.section-deep{background:var(--bg-800);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:44px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;
  color:var(--accent);
  margin:0 0 12px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent);}
.section-desc{font-size:15px;color:var(--text-2);max-width:620px;margin:12px 0 0;line-height:1.8;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:72px 0 88px;
  min-height:640px;
  display:flex;align-items:center;
  overflow:hidden;
  background:var(--bg);
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(47,107,255,.13) 0 1px,transparent 1px 100%),
    linear-gradient(90deg,rgba(47,107,255,.13) 0 1px,transparent 1px 100%);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  opacity:.5;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;top:-180px;right:-120px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(47,107,255,.16),transparent 62%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-row{display:flex;flex-wrap:wrap;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:999px;
  font-size:12px;color:var(--warm);
  background:rgba(255,182,92,.08);
  border:1px solid rgba(255,182,92,.32);
  margin-bottom:22px;
}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{
  color:var(--accent);
  border-bottom:2px solid var(--accent);
  padding-bottom:2px;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:520px;
  margin:0 0 32px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:30px;}
.hero-points{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.hero-points li{
  position:relative;
  font-size:14px;color:var(--text-2);
  padding-left:0;
}
.hero-points li+li::before{
  content:"";
  position:absolute;left:-9px;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--line);
}
.hero-visual{position:relative;padding-bottom:28px;}
.hero-glow{
  position:absolute;inset:auto 12px 0 12px;height:280px;
  background:radial-gradient(ellipse at 60% 40%,rgba(47,107,255,.22),transparent 70%);
  filter:blur(28px);
  pointer-events:none;
}
.hero-figure{
  position:relative;
  margin:0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/11;
  background:linear-gradient(145deg,#0E1729,#0A111F);
  box-shadow:var(--shadow-card);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-stat-card{
  position:absolute;
  left:-24px;bottom:0;
  width:min(300px,88%);
  padding:18px 20px;
  border-radius:var(--radius);
  background:rgba(14,23,41,.82);
  border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.stat-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:7px 0;}
.stat-row+.stat-row{border-top:1px solid var(--line);}
.stat-row span{font-size:13px;color:var(--text-3);}
.stat-row strong{
  font-size:22px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:0;
}

/* ---------- Steps ---------- */
.steps-wrap{position:relative;padding-top:8px;}
.steps-line{
  position:absolute;left:44px;right:44px;top:56px;height:1px;
  background:linear-gradient(90deg,rgba(33,230,193,.35),rgba(33,230,193,.14),rgba(33,230,193,.35));
  filter:drop-shadow(0 0 6px rgba(33,230,193,.5));
}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;}
.step{position:relative;}
.step-num{
  display:block;
  font-size:28px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:0;
  margin-bottom:16px;
}
.step-icon{
  width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--accent);
  font-size:16px;
  margin-bottom:16px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:14.5px;line-height:1.8;color:var(--text-2);margin:0;}

/* ---------- Proof / Stats band ---------- */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  margin-bottom:48px;
  overflow:hidden;
}
.stat-cell{padding:28px 24px;position:relative;text-align:left;}
.stat-cell+.stat-cell::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:1px;background:var(--line);}
.stat-cell strong{
  display:block;
  font-size:34px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  letter-spacing:0;
}
.stat-cell span{display:block;font-size:13px;color:var(--text-3);margin-top:8px;}

/* ---------- Case cards ---------- */
.case-card{
  display:flex;
  gap:0;
  height:100%;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(14,23,41,.72);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.case-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.4);}
.case-media{
  flex:0 0 40%;
  position:relative;
  background:linear-gradient(150deg,#0E1729,#0A111F);
  overflow:hidden;
}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease);}
.case-card:hover .case-media img{transform:scale(1.02);}
.case-body{padding:26px 24px;display:flex;flex-direction:column;gap:12px;}
.case-body h3{font-size:20px;}
.case-body p{font-size:14.5px;line-height:1.8;margin:0;}
.case-metric{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--accent);
  margin-top:auto;padding-top:8px;
}
.case-metric i{font-size:12px;transition:transform .2s var(--ease);}
.case-card:hover .case-metric i{transform:translateX(4px);}

/* ---------- Latest / CMS ---------- */
.news-main{
  display:block;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(14,23,41,.72);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  height:100%;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.news-main:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.4);}
.news-main .media{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(150deg,#0E1729,#0A111F);
  overflow:hidden;
}
.news-main .media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(6,10,19,.7));
}
.news-main .media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease);}
.news-main:hover .media img{transform:scale(1.02);}
.news-main .body{padding:24px;}
.news-main h3{font-size:21px;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-main p{font-size:14.5px;line-height:1.8;margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side{display:flex;flex-direction:column;gap:16px;height:100%;}
.news-mini{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(14,23,41,.6);
  transition:all .2s var(--ease);
}
.news-mini:hover{border-color:rgba(47,107,255,.4);transform:translateY(-2px);background:rgba(14,23,41,.9);}
.news-mini .thumb{
  width:96px;height:96px;flex:0 0 auto;
  border-radius:12px;overflow:hidden;
  background:linear-gradient(150deg,#0E1729,#0A111F);
}
.news-mini .thumb img{width:100%;height:100%;object-fit:cover;}
.news-mini .txt{min-width:0;display:flex;flex-direction:column;gap:6px;}
.news-mini h3{font-size:15.5px;line-height:1.55;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-mini p{font-size:13px;line-height:1.7;margin:0;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-time{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.empty-state{
  min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border-radius:var(--radius);
  border:1px dashed var(--line);
  background:var(--glass);
  text-align:center;
  padding:40px 24px;
}
.empty-state i{font-size:26px;color:var(--text-3);}
.empty-state p{font-size:15px;color:var(--text-2);margin:0;}

/* ---------- FAQ ---------- */
.faq-left{position:sticky;top:104px;}
.faq-list{display:flex;flex-direction:column;gap:16px;}
.acc-item{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.acc-item.is-open{border-color:rgba(33,230,193,.32);background:rgba(33,230,193,.05);}
.acc-head{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;
  padding:20px 22px 20px 22px;
  text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
  line-height:1.6;
}
.acc-head::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.acc-item.is-open .acc-head::before{opacity:1;}
.acc-head i{font-size:12px;color:var(--text-3);transition:transform .28s var(--ease);flex:0 0 auto;}
.acc-item.is-open .acc-head i{transform:rotate(180deg);color:var(--accent);}
.acc-body{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.acc-body p{
  padding:0 22px 20px 22px;
  font-size:15px;line-height:1.85;color:var(--text-2);margin:0;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(47,107,255,.3);
  background:linear-gradient(120deg,rgba(47,107,255,.14),rgba(14,23,41,.9) 55%);
  box-shadow:var(--shadow-card);
  padding:56px;
}
.cta-band::before{
  content:"";
  position:absolute;top:-40%;left:-10%;width:70%;height:180%;
  background:linear-gradient(90deg,transparent,rgba(33,230,193,.1),transparent);
  transform:rotate(14deg);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{margin-bottom:12px;}
.cta-inner p{max-width:560px;margin:0;font-size:15.5px;line-height:1.8;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-900);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.footer-col{padding:0 12px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  margin-bottom:16px;
}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-3);margin:0 0 18px;max-width:300px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin:0 0 18px;letter-spacing:0;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-2);}
.footer-contact span{display:inline-flex;align-items:center;gap:8px;}
.footer-contact i{color:var(--accent);font-size:13px;width:16px;}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .legal{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--text-2);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  :root{--gap-section:72px;}
  h1{font-size:36px;}
  h2{font-size:27px;}
  .main-nav{gap:16px;}
  .nav-link{font-size:14px;}
  .mega-panel{width:520px;}
  .hero{padding:56px 0 72px;min-height:auto;}
  .hero-visual{margin-top:48px;padding-bottom:24px;}
  .hero-stat-card{left:0;}
  .stats-band{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(3)::before{display:none;}
  .stat-cell:nth-child(odd)::before{display:none;}
  .steps{gap:24px;}
  .steps-line{display:none;}
  .cta-band{padding:44px 32px;}
  .faq-left{position:static;margin-bottom:32px;}
}
@media screen and (max-width:900px){
  .main-nav{display:none;}
  .mega-wrap{display:none;}
  .menu-toggle{display:inline-flex;}
  .drawer{display:block;}
}
@media screen and (max-width:768px){
  h1{font-size:32px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .hero-actions .btn{flex:1 1 100%;}
  .steps{grid-template-columns:1fr;gap:32px;}
  .step{display:block;padding-left:0;}
  .stats-band{grid-template-columns:1fr 1fr;}
  .stat-cell{padding:22px 18px;}
  .stat-cell strong{font-size:28px;}
  .case-card{flex-direction:column;}
  .case-media{flex:0 0 auto;aspect-ratio:16/9;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:640px){
  h1{font-size:30px;line-height:1.32;}
  h2{font-size:22px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:40px 0 56px;}
  .hero-sub{font-size:15.5px;}
  .hero-points{gap:14px;}
  .hero-points li{font-size:13px;}
  .hero-badge{margin-bottom:16px;}
  .hero-stat-card{position:static;width:100%;margin-top:16px;left:auto;bottom:auto;}
  .hero-visual{padding-bottom:0;}
  .stat-cell strong{font-size:26px;}
  .news-mini .thumb{width:80px;height:80px;}
  .cta-band{padding:32px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{flex-direction:column;}
  .footer-col{width:100%;margin-bottom:32px;}
  .footer-col:last-child{margin-bottom:0;}
  .acc-head{font-size:16px;padding:17px 18px;}
  .acc-body p{padding:0 18px 18px 18px;font-size:14.5px;}
}
@media screen and (min-width:1440px){
  .container{max-width:1280px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .case-card:hover,.news-main:hover,.news-mini:hover,.btn:hover{transform:none!important;}
}

/* roulang page: article */
:root{
  --bg:#060A13;
  --bg-800:#0A111F;
  --card:#0E1729;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --line-brand:rgba(47,107,255,.35);
  --brand:#2F6BFF;
  --accent:#21E6C1;
  --warm:#FFB65C;
  --text:#E9EFFB;
  --text-2:#9FB0C9;
  --text-3:#67788F;
  --white:#FFFFFF;
  --success:#2BD98B;
  --warn:#FF7A6B;
  --info:#59A9FF;
  --r-xl:20px;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -18px rgba(0,0,0,.85);
  --shadow-btn:0 0 0 1px rgba(47,107,255,.5), 0 10px 30px -8px rgba(47,107,255,.65);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--info);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:1.4em;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}
@media (max-width:1024px){.container{padding:0 20px;}}
@media (max-width:640px){.container{padding:0 16px;}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(6,10,19,.74);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .28s var(--ease);}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex-shrink:0;}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand),#1749c8);
  color:#fff;font-size:16px;font-weight:700;
  box-shadow:0 8px 20px -8px rgba(47,107,255,.9);
}
.brand-name{font-size:18px;font-weight:600;color:var(--text);letter-spacing:0;white-space:nowrap;}
.brand:hover .brand-name{color:var(--white);}
.main-nav{display:flex;align-items:stretch;gap:24px;height:72px;transition:height .28s var(--ease);}
.site-header.is-scrolled .main-nav{height:64px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:15px;color:var(--text-2);text-decoration:none;
  transition:color .2s var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--text);}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:var(--r-sm);border:1px solid var(--line);background:var(--glass);
  color:var(--text-2);font-size:14px;cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.mega-trigger i{font-size:11px;transition:transform .2s var(--ease);}
.mega-trigger:hover{color:var(--text);border-color:rgba(33,230,193,.45);background:rgba(33,230,193,.06);}
.mega-wrap.is-open .mega-trigger{color:var(--text);border-color:var(--line-brand);}
.mega-wrap.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:640px;max-width:calc(100vw - 48px);
  padding:20px;border-radius:var(--r-xl);
  background:rgba(10,17,31,.97);border:1px solid var(--line);
  box-shadow:0 30px 60px -20px rgba(0,0,0,.9);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  opacity:0;transform:translateY(8px);pointer-events:none;visibility:hidden;
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.mega-wrap.is-open .mega-panel{opacity:1;transform:translateY(0);pointer-events:auto;visibility:visible;}
.mega-col-title{font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-bottom:12px;}
.mega-item{
  display:flex;gap:12px;padding:12px;border-radius:var(--r-sm);
  color:var(--text-2);text-decoration:none;transition:background .2s var(--ease),color .2s var(--ease);
}
.mega-item:hover{background:rgba(255,255,255,.05);color:var(--text);}
.mega-item .mi-icon{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;display:grid;place-items:center;
  background:rgba(33,230,193,.1);color:var(--accent);font-size:13px;
}
.mega-item .mi-title{font-size:14px;color:var(--text);font-weight:600;line-height:1.5;}
.mega-item .mi-desc{font-size:12px;color:var(--text-3);line-height:1.6;margin-top:2px;}
.mega-mini{
  display:block;padding:12px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.03);text-decoration:none;margin-bottom:10px;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-mini:hover{border-color:var(--line-brand);transform:translateY(-2px);}
.mega-mini .mm-time{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.mega-mini .mm-title{font-size:14px;color:var(--text);line-height:1.6;margin-top:4px;}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:var(--r-sm);border:1px solid var(--line);background:var(--glass);
  color:var(--text);font-size:16px;cursor:pointer;transition:border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-brand);}
.mobile-drawer{
  display:none;overflow:hidden;max-height:0;
  border-top:1px solid transparent;background:rgba(10,17,31,.98);
  transition:max-height .3s var(--ease),border-color .3s var(--ease);
}
.mobile-drawer.is-open{max-height:560px;border-top-color:var(--line);}
.drawer-inner{padding:12px 20px 24px;}
.drawer-link{
  display:flex;align-items:center;min-height:44px;padding:0 4px;
  font-size:15px;color:var(--text-2);text-decoration:none;
  border-bottom:1px solid var(--line);transition:color .2s var(--ease);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--accent);}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{display:block;}
  .mega-wrap{display:none;}
}
@media (max-width:640px){
  .header-inner{height:64px;}
  .brand-name{font-size:16px;}
  .brand-mark{width:30px;height:30px;font-size:14px;border-radius:9px;}
}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--text-2);text-decoration:none;transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .crumb-sep{color:var(--text-3);opacity:.7;}
.breadcrumb .crumb-current{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article Hero ---------- */
.article-hero{position:relative;overflow:hidden;padding:52px 0 44px;border-bottom:1px solid var(--line);background:var(--bg);}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.13;
  -webkit-mask-image:linear-gradient(to bottom,#000 0%,transparent 88%);
  mask-image:linear-gradient(to bottom,#000 0%,transparent 88%);
  pointer-events:none;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(720px 300px at 12% 0%,rgba(47,107,255,.22),transparent 70%);
}
.article-hero .container{position:relative;z-index:1;}
.hero-col{max-width:860px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;line-height:1;background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);white-space:nowrap;
}
.badge-brand{color:var(--accent);border-color:rgba(33,230,193,.4);background:rgba(33,230,193,.08);}
.badge-warm{color:var(--warm);border-color:rgba(255,182,92,.4);background:rgba(255,182,92,.08);}
.article-title{
  font-size:32px;line-height:1.32;font-weight:600;color:var(--text);
  margin:18px 0 20px;letter-spacing:0;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:14px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.meta-row .sep{width:1px;height:12px;background:var(--line);display:inline-block;}
.meta-row i{font-size:12px;margin-right:5px;color:var(--text-3);}

/* ---------- Article Body ---------- */
.article-main{padding:56px 0 8px;}
.post-wrap{max-width:820px;margin:0 auto;}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--shadow-card);padding:40px;
}
.post-body{font-size:17px;line-height:32px;color:var(--text-2);letter-spacing:0;}
.post-body > *:first-child{margin-top:0;}
.post-body p{margin:0 0 1.2em;}
.post-body h2{
  position:relative;font-size:22px;line-height:1.45;font-weight:600;color:var(--text);
  margin:1.9em 0 .85em;padding-left:14px;
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:2px;background:var(--accent);
}
.post-body h3{font-size:18px;line-height:28px;font-weight:600;color:var(--text);margin:1.6em 0 .7em;}
.post-body h4{font-size:16px;line-height:26px;font-weight:600;color:var(--text);margin:1.4em 0 .6em;}
.post-body a{color:var(--info);text-decoration:none;border-bottom:1px solid rgba(89,169,255,.35);}
.post-body a:hover{color:var(--accent);border-bottom-color:rgba(33,230,193,.5);}
.post-body strong,.post-body b{color:var(--text);font-weight:600;}
.post-body ul,.post-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.post-body li{margin-bottom:.5em;line-height:32px;}
.post-body li::marker{color:var(--accent);}
.post-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;background:var(--glass);color:var(--text-2);
}
.post-body blockquote p:last-child{margin-bottom:0;}
.post-body img{border-radius:var(--r-md);margin:1.6em 0 .6em;height:auto;}
.post-body figure{margin:1.6em 0;}
.post-body figcaption{font-size:13px;line-height:1.7;color:var(--text-3);margin-top:8px;text-align:center;}
.post-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.post-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.post-body th,.post-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.post-body th{background:rgba(255,255,255,.04);color:var(--text);font-weight:600;}
.post-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
}
.post-tip{font-size:13px;color:var(--text-3);line-height:1.7;}

/* ---------- Empty state ---------- */
.empty-state{text-align:center;padding:48px 16px;}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:var(--r-lg);
  display:grid;place-items:center;font-size:24px;color:var(--text-3);
  background:var(--glass);border:1px solid var(--line);
}
.empty-state h2{font-size:20px;line-height:1.5;color:var(--text);font-weight:600;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--text-3);line-height:1.8;margin-bottom:24px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;text-decoration:none;border:1px solid transparent;
  cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
  min-width:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-btn);}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,107,255,.6),0 16px 38px -8px rgba(47,107,255,.8);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,.18);}
.btn-ghost:hover{color:var(--accent);border-color:rgba(33,230,193,.55);background:rgba(33,230,193,.06);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;height:44px;padding:0 4px;
  color:var(--text-2);font-size:14px;text-decoration:none;background:none;border:0;
  transition:color .2s var(--ease);
}
.btn-text i{transition:transform .2s var(--ease);font-size:12px;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- Section heading ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:600;color:var(--text);letter-spacing:0;}
.section-head p{font-size:15px;color:var(--text-3);margin-top:8px;line-height:1.7;}

/* ---------- Related cards ---------- */
.related{padding:var(--section) 0 0;}
.card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-card);text-decoration:none;color:inherit;
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.4);color:inherit;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0c1626 0%,#12233d 55%,#0b1524 100%);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.02);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;line-height:1.55;font-weight:600;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-desc{font-size:13px;line-height:1.75;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.card-foot .arrow{color:var(--text-3);transition:transform .2s var(--ease),color .2s var(--ease);}
.card:hover .card-foot .arrow{color:var(--accent);transform:translateX(4px);}
.cards-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media (max-width:1024px){.cards-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.cards-grid{grid-template-columns:1fr;}}

/* ---------- CTA band ---------- */
.cta-band{padding:var(--section) 0 0;}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  border:1px solid var(--line);background:linear-gradient(150deg,rgba(47,107,255,.16),rgba(10,17,31,.9) 55%);
  padding:56px;-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.cta-inner::before{
  content:"";position:absolute;top:-40%;right:-12%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(33,230,193,.22),transparent 65%);pointer-events:none;
}
.cta-inner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,transparent 40%,rgba(255,255,255,.05) 50%,transparent 60%);
}
.cta-inner > *{position:relative;z-index:1;}
.cta-inner h2{font-size:28px;line-height:1.35;font-weight:600;color:var(--text);margin-bottom:12px;}
.cta-inner p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:620px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-800);border-top:1px solid var(--line);padding:64px 0 24px;margin-top:var(--section);}
.footer-grid{display:flex;flex-wrap:wrap;margin:0 -12px;}
.footer-col{padding:0 12px;margin-bottom:32px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;margin-bottom:14px;}
.footer-brand .brand-name{font-size:18px;font-weight:600;color:var(--text);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-3);max-width:320px;margin-bottom:16px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:var(--text-2);text-decoration:none;transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-2);}
.footer-contact i{color:var(--text-3);margin-right:8px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:20px;font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.footer-bottom .legal{display:flex;gap:20px;}
.footer-bottom a{color:var(--text-3);text-decoration:none;transition:color .2s var(--ease);}
.footer-bottom a:hover{color:var(--accent);}
@media (max-width:1024px){
  .footer-col{width:50% !important;}
}
@media (max-width:640px){
  .footer-col{width:100% !important;}
  .site-footer{padding:48px 0 20px;}
}

/* ---------- Responsive type ---------- */
@media (max-width:1024px){
  :root{--section:72px;}
  .article-title{font-size:28px;}
  .post-card{padding:28px;}
  .cta-inner{padding:40px 32px;}
  .section-head h2{font-size:24px;}
}
@media (max-width:640px){
  :root{--section:56px;}
  .article-hero{padding:36px 0 32px;}
  .article-title{font-size:24px;line-height:1.4;}
  .article-main{padding:36px 0 0;}
  .post-card{padding:20px;border-radius:var(--r-lg);}
  .post-body{font-size:17px;line-height:1.85;}
  .post-body h2{font-size:20px;}
  .post-body h3{font-size:17px;}
  .cta-inner{padding:32px 20px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .section-head h2{font-size:22px;}
  .breadcrumb .crumb-current{max-width:200px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .card:hover,.btn:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --bg-900:#060A13;
  --bg-800:#0A111F;
  --bg-700:#0E1729;
  --glass:rgba(255,255,255,0.045);
  --glass-2:rgba(255,255,255,0.07);
  --line:rgba(255,255,255,0.09);
  --line-brand:rgba(47,107,255,0.35);
  --brand:#2F6BFF;
  --brand-soft:rgba(47,107,255,0.14);
  --accent:#21E6C1;
  --accent-soft:rgba(33,230,193,0.14);
  --warm:#FFB65C;
  --text:#E9EFFB;
  --text-2:#9FB0C9;
  --text-3:#67788F;
  --white:#FFFFFF;
  --ok:#2BD98B;
  --warn:#FF7A6B;
  --info:#59A9FF;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,0.06), 0 18px 40px -18px rgba(0,0,0,0.85);
  --shadow-btn:0 0 0 1px rgba(47,107,255,0.5), 0 10px 30px -8px rgba(47,107,255,0.65);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  letter-spacing:0;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--text-2);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,107,255,0.45);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.row{
  max-width:none;
  margin-left:-12px;
  margin-right:-12px;
}
.row .columns{padding-left:12px;padding-right:12px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:900;
  background:rgba(6,10,19,0.78);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,19,0.94);
  box-shadow:0 12px 30px -22px rgba(0,0,0,0.95);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
  transition:min-height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:64px;}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.brand-mark{
  width:34px;
  height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:linear-gradient(140deg,rgba(47,107,255,0.95),rgba(33,230,193,0.72));
  color:#04101f;
  font-size:16px;
  font-weight:700;
  box-shadow:0 8px 22px -12px rgba(47,107,255,0.9);
}
.brand-name{
  font-size:18px;
  font-weight:600;
  letter-spacing:0;
  white-space:nowrap;
  color:var(--white);
}
.brand:hover .brand-name{color:var(--accent);}

.main-nav{
  display:flex;
  align-items:center;
  gap:24px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:72px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s var(--ease),height .28s var(--ease);
}
.site-header.is-scrolled .nav-link{height:64px;}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--white);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.mega-trigger i{font-size:11px;transition:transform .24s var(--ease);}
.mega-trigger:hover{color:var(--white);border-color:var(--line-brand);background:var(--glass-2);}
.mega-trigger[aria-expanded="true"]{color:var(--white);border-color:var(--line-brand);}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);}

.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:640px;
  padding:20px;
  border-radius:20px;
  border:1px solid var(--line);
  background:rgba(14,23,41,0.96);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  opacity:0;
  transform:translateY(8px);
  pointer-events:none;
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.mega-panel.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mega-panel[hidden]{display:none;}
.mega-col-title{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:0.04em;
  margin-bottom:12px;
}
.mega-item{
  display:flex;
  gap:10px;
  padding:10px;
  border-radius:12px;
  border:1px solid transparent;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.mega-item:hover{background:var(--glass);border-color:var(--line);}
.mega-item i{
  color:var(--accent);
  font-size:14px;
  margin-top:5px;
}
.mega-item strong{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
}
.mega-item span{
  display:block;
  font-size:12px;
  color:var(--text-3);
  line-height:1.7;
}
.mega-latest .mega-item strong{font-size:13.5px;}
.mega-latest .mega-time{
  font-size:12px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text-2);
  border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease),background-color .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);background:var(--accent);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);background:var(--accent);}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(10,17,31,0.98);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:12px 0 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .container{display:flex;flex-direction:column;gap:2px;}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 4px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.drawer-link:hover{color:var(--white);}
.drawer-link.is-active{color:var(--accent);font-weight:600;}
.drawer-link i{font-size:12px;color:var(--text-3);}
.drawer-note{
  margin-top:14px;
  font-size:12.5px;
  color:var(--text-3);
  line-height:1.7;
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:22px 0 0;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);opacity:.7;}
.breadcrumb .current{color:var(--text);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  padding:36px 0 56px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  top:-220px;
  left:-120px;
  width:620px;
  height:620px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(33,230,193,0.16),rgba(33,230,193,0) 68%);
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  top:-160px;
  right:-80px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,107,255,0.16),rgba(47,107,255,0) 70%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:40px;align-items:flex-end;}
.cat-hero-main{flex:1 1 560px;min-width:0;}
.cat-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--accent-soft);
  background:rgba(33,230,193,0.08);
  color:var(--accent);
  font-size:12px;
  letter-spacing:0.02em;
  margin-bottom:18px;
}
.cat-hero h1{
  font-size:44px;
  line-height:1.3;
  font-weight:600;
  letter-spacing:0;
  color:var(--white);
}
.cat-hero h1 .h1-sub{color:var(--text-2);font-weight:600;}
.cat-hero-desc{
  margin-top:18px;
  max-width:660px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.cat-hero-desc p + p{margin-top:.9em;}
.cat-hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.cat-hero-side{
  flex:0 1 320px;
  display:grid;
  gap:12px;
  width:100%;
  max-width:340px;
}
.hero-stat-card{
  padding:18px 20px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.hero-stat-card .num{
  display:block;
  font-size:26px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.3;
}
.hero-stat-card .label{
  display:block;
  margin-top:4px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:0;
  transition:transform .2s var(--ease),box-shadow .28s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--brand);
  color:var(--white);
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{
  color:var(--white);
  background:#3f78ff;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,107,255,0.7), 0 16px 36px -8px rgba(47,107,255,0.8);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border:1px solid rgba(255,255,255,0.18);
}
.btn-ghost:hover{
  color:var(--white);
  border-color:var(--accent);
  background:rgba(255,255,255,0.05);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
}
.link-arrow i{transition:transform .2s var(--ease);font-size:12px;}
.link-arrow:hover{color:var(--white);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  line-height:1;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  white-space:nowrap;
}
.badge--brand{border-color:rgba(47,107,255,0.45);color:#a9c4ff;background:rgba(47,107,255,0.12);}
.badge--accent{border-color:rgba(33,230,193,0.42);color:#8ff0e0;background:rgba(33,230,193,0.1);}
.badge--warm{border-color:rgba(255,182,92,0.42);color:#ffd39b;background:rgba(255,182,92,0.1);}
.badge--warn{border-color:rgba(255,122,107,0.42);color:#ffb0a6;background:rgba(255,122,107,0.1);}

/* ---------- 筛选标签条 ---------- */
.filter-section{padding:8px 0 0;}
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:14px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-800);
}
.filter-tab{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.filter-tab:hover{color:var(--white);border-color:var(--line-brand);transform:translateY(-1px);}
.filter-tab.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:var(--white);
  font-weight:600;
  box-shadow:0 8px 24px -14px rgba(47,107,255,0.95);
}
.filter-tab .count{
  font-size:12px;
  color:inherit;
  opacity:.7;
  font-variant-numeric:tabular-nums;
}
.filter-note{
  margin-top:14px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0;}
.section--tight{padding:40px 0;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:32px;
  line-height:1.35;
  font-weight:600;
  color:var(--white);
  letter-spacing:0;
}
.section-head .sub{
  margin-top:10px;
  font-size:14.5px;
  color:var(--text-3);
  max-width:620px;
  line-height:1.8;
}
.section-head .head-right{display:flex;align-items:center;gap:16px;}

/* ---------- 资讯卡片网格 ---------- */
.news-grid{margin-bottom:-24px;}
.news-col{margin-bottom:24px;}
.news-card{
  height:100%;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-700);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.news-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,107,255,0.4);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08),0 24px 48px -20px rgba(0,0,0,0.95);
}
.news-card__link{display:flex;flex-direction:column;height:100%;color:inherit;}
.news-card__link:hover{color:inherit;}
.news-card__media{
  position:relative;
  width:100%;
  aspect-ratio:16 / 9;
  background:linear-gradient(135deg,#10203a,#0a1322 60%,#122a3d);
  overflow:hidden;
}
.news-card__media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,19,0) 40%,rgba(6,10,19,0.55));
  pointer-events:none;
}
.news-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .28s var(--ease);
}
.news-card:hover .news-card__media img{transform:scale(1.02);}
.news-card__flag{
  position:absolute;
  top:12px;
  left:12px;
  z-index:2;
}
.news-card__body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:22px;
  flex:1 1 auto;
}
.news-card__title{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__excerpt{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__meta{
  margin-top:auto;
  padding-top:6px;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  color:var(--text-3);
}
.news-card__meta .num{font-variant-numeric:tabular-nums;}
.news-card__meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);opacity:.7;}

/* ---------- 分页 ---------- */
.pager-wrap{
  margin-top:40px;
  display:flex;
  justify-content:center;
}
.pager{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.pager a,.pager span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  height:44px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  font-size:14px;
  font-variant-numeric:tabular-nums;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.pager a:hover{color:var(--white);border-color:var(--line-brand);background:var(--glass-2);}
.pager .is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:var(--white);
  font-weight:600;
}
.pager .gap{border-color:transparent;background:transparent;color:var(--text-3);}

/* ---------- 数据横带 ---------- */
.stat-band{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-800);
  box-shadow:var(--shadow-card);
  padding:32px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-item{position:relative;padding-left:0;}
.stat-item + .stat-item::before{
  content:"";
  position:absolute;
  left:-12px;
  top:8px;
  bottom:8px;
  width:1px;
  background:var(--line);
}
.stat-item .num{
  display:block;
  font-size:34px;
  line-height:1.2;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.stat-item .label{
  display:block;
  margin-top:8px;
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}

/* ---------- 阅读要点 ---------- */
.read-panel{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:24px;
  align-items:stretch;
}
.read-card{
  padding:28px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-700);
  box-shadow:var(--shadow-card);
}
.read-card h3{
  font-size:22px;
  line-height:1.4;
  font-weight:600;
  color:var(--white);
  margin-bottom:16px;
}
.read-list{display:grid;gap:14px;}
.read-list li{
  display:flex;
  gap:12px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.read-list li i{
  color:var(--accent);
  font-size:13px;
  margin-top:6px;
  flex-shrink:0;
}
.read-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(135deg,#10203a,#0a1322);
  min-height:280px;
}
.read-media img{width:100%;height:100%;object-fit:cover;}
.read-media .media-cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:18px 20px;
  background:linear-gradient(180deg,rgba(6,10,19,0),rgba(6,10,19,0.92));
  font-size:13px;
  color:var(--text-2);
}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:48px;
  align-items:start;
}
.faq-aside{position:sticky;top:96px;}
.faq-aside h2{
  font-size:30px;
  line-height:1.35;
  font-weight:600;
  color:var(--white);
}
.faq-aside p{
  margin-top:14px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--text-2);
}
.faq-aside .btn{margin-top:22px;}
.faq-list{display:grid;gap:16px;}
.faq-item{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  transition:border-color .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(33,230,193,0.35);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:20px 22px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .24s var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-q i{
  font-size:13px;
  color:var(--text-3);
  transition:transform .24s var(--ease),color .2s var(--ease);
  flex-shrink:0;
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--accent);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 22px 22px 22px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  border:1px solid var(--line);
  background:var(--bg-700);
  padding:56px;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-140px;
  right:-60px;
  width:520px;
  height:420px;
  background:linear-gradient(115deg,rgba(47,107,255,0.22),rgba(33,230,193,0.12) 55%,rgba(47,107,255,0) 78%);
  transform:rotate(-12deg);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-text{flex:1 1 520px;min-width:0;}
.cta-text h2{
  font-size:32px;
  line-height:1.35;
  font-weight:600;
  color:var(--white);
}
.cta-text p{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:620px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  border-top:1px solid var(--line);
  background:var(--bg-800);
  padding:56px 0 28px;
}
.footer-grid{
  display:flex;
  flex-wrap:wrap;
  margin:0 -12px 40px;
}
.footer-col{
  padding:0 12px;
  margin-bottom:24px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
  color:var(--white);
}
.footer-brand .brand-name{font-size:18px;font-weight:600;}
.footer-brand:hover .brand-name{color:var(--accent);}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--text-3);
  max-width:340px;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  line-height:1.6;
}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:grid;gap:12px;font-size:14px;color:var(--text-2);}
.footer-contact span{display:flex;gap:10px;align-items:flex-start;line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .legal{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1440px){
  .container{max-width:1200px;}
}
@media screen and (max-width:1024px){
  .container{padding:0 20px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mega-wrap{display:none;}
  .cat-hero{padding:28px 0 44px;}
  .cat-hero h1{font-size:36px;}
  .cat-hero-side{max-width:none;flex:1 1 100%;grid-template-columns:1fr 1fr;}
  .section{padding:44px 0;}
  .section-head h2{font-size:28px;}
  .stat-band{grid-template-columns:repeat(2,1fr);padding:26px;gap:26px;}
  .stat-item:nth-child(3)::before{display:none;}
  .read-panel{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-aside{position:static;}
  .cta-band{padding:40px;}
  .cta-text h2{font-size:28px;}
}
@media screen and (max-width:640px){
  .container{padding:0 16px;}
  .header-inner{min-height:64px;gap:12px;}
  .brand-name{font-size:16px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:14px;}
  .breadcrumb-bar{padding-top:16px;}
  .cat-hero{padding:22px 0 36px;}
  .cat-hero h1{font-size:30px;line-height:1.4;}
  .cat-hero-desc{font-size:15px;margin-top:14px;}
  .cat-hero-actions{gap:12px;}
  .cat-hero-actions .btn{width:100%;}
  .cat-hero-side{grid-template-columns:1fr;}
  .section{padding:36px 0;}
  .section-head{margin-bottom:22px;}
  .section-head h2{font-size:24px;}
  .section-head .sub{font-size:13.5px;}
  .filter-bar{padding:12px;gap:8px;}
  .filter-tab{min-height:44px;padding:0 14px;font-size:13px;}
  .news-card__body{padding:18px;}
  .news-card__title{font-size:17px;}
  .news-card__excerpt{font-size:13.5px;}
  .stat-band{grid-template-columns:1fr;padding:22px;gap:20px;}
  .stat-item + .stat-item::before{left:0;right:0;top:-10px;bottom:auto;width:auto;height:1px;}
  .stat-item{padding-top:0;}
  .stat-item .num{font-size:28px;}
  .read-card{padding:22px;}
  .read-card h3{font-size:19px;}
  .faq-aside h2{font-size:24px;}
  .faq-q{font-size:15.5px;padding:18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-band{padding:28px 22px;border-radius:16px;}
  .cta-text h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .site-footer{margin-top:48px;padding:40px 0 24px;}
  .footer-col{width:100% !important;margin-bottom:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .pager a,.pager span{min-width:40px;height:40px;padding:0 10px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .news-card:hover,.btn:hover,.filter-tab:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#060A13;
  --bg-900:#0A111F;
  --bg-800:#0E1729;
  --glass:rgba(255,255,255,0.045);
  --line:rgba(255,255,255,0.09);
  --line-strong:rgba(47,107,255,0.35);
  --primary:#2F6BFF;
  --primary-soft:rgba(47,107,255,0.14);
  --accent:#21E6C1;
  --warm:#FFB65C;
  --text:#E9EFFB;
  --text-2:#9FB0C9;
  --text-3:#67788F;
  --ok:#2BD98B;
  --warn:#FF7A6B;
  --info:#59A9FF;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,0.06), 0 18px 40px -18px rgba(0,0,0,0.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
h1,h2,h3,h4{font-weight:600;line-height:1.3;letter-spacing:0;}
ul,ol{padding-left:1.25em;}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:var(--text);text-decoration:none;transition:color 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease);}
a:hover{color:var(--primary);}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,107,255,.4);color:#fff;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* Foundation 栅格覆盖 */
.row{
  display:flex;
  flex-wrap:wrap;
  max-width:none;
  margin-left:-12px;
  margin-right:-12px;
}
.row .row{margin-left:-12px;margin-right:-12px;}
.column,.columns{
  padding-left:12px;
  padding-right:12px;
  float:none;
  width:100%;
  max-width:100%;
}
.row.align-middle{align-items:center;}
@media (min-width:1025px){
  .large-3{flex:0 0 25%;max-width:25%;}
  .large-4{flex:0 0 33.3333%;max-width:33.3333%;}
  .large-5{flex:0 0 41.6667%;max-width:41.6667%;}
  .large-6{flex:0 0 50%;max-width:50%;}
  .large-7{flex:0 0 58.3333%;max-width:58.3333%;}
  .large-8{flex:0 0 66.6667%;max-width:66.6667%;}
  .large-9{flex:0 0 75%;max-width:75%;}
}

/* ============ 按钮与徽章 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:transform 200ms var(--ease),box-shadow 280ms var(--ease),background-color 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 0 0 1px rgba(47,107,255,.5),0 10px 30px -8px rgba(47,107,255,.65);
}
.btn-primary:hover{
  color:#fff;
  background:#3b76ff;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,107,255,.65),0 16px 40px -8px rgba(47,107,255,.8);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:var(--accent);
  background:rgba(255,255,255,.05);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:color 200ms var(--ease);
}
.link-arrow i,.link-arrow .arw{transition:transform 200ms var(--ease);}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover .arw{transform:translateX(4px);}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  line-height:18px;
  font-weight:500;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
}
.badge-accent{
  color:var(--accent);
  border-color:rgba(33,230,193,.35);
  background:rgba(33,230,193,.08);
}
.badge-warm{
  color:var(--warm);
  border-color:rgba(255,182,92,.35);
  background:rgba(255,182,92,.09);
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,10,19,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color 280ms var(--ease);
}
.nav-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height 280ms var(--ease);
}
.site-header.is-scrolled .nav-bar{height:64px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:linear-gradient(150deg,rgba(47,107,255,.95),rgba(33,230,193,.85));
  color:#04101f;
  font-size:17px;
  font-weight:700;
  line-height:1;
  box-shadow:0 8px 22px -10px rgba(47,107,255,.9);
}
.brand-name{
  font-size:18px;
  font-weight:600;
  color:var(--text);
  letter-spacing:0;
}
.brand-short{display:none;font-size:17px;font-weight:600;color:var(--text);}
.brand:hover .brand-name,.brand:hover .brand-short{color:#fff;}

.nav-links{
  display:flex;
  align-items:center;
  gap:24px;
  height:100%;
  flex:1 1 auto;
  justify-content:center;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:100%;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
  transition:color 200ms var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform 200ms var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{transform:scaleX(1);}

.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-mega{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  transition:color 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease);
}
.mega-trigger i{font-size:11px;transition:transform 200ms var(--ease);}
.mega-trigger:hover{color:var(--text);border-color:rgba(47,107,255,.5);}
.nav-mega.is-open .mega-trigger{color:var(--text);border-color:rgba(47,107,255,.6);background:rgba(47,107,255,.14);}
.nav-mega.is-open .mega-trigger i{transform:rotate(180deg);}

.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:640px;
  display:flex;
  gap:20px;
  padding:22px;
  border-radius:var(--radius-lg);
  background:rgba(10,17,31,.96);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.06);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms var(--ease);
}
.nav-mega.is-open .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-col{flex:1 1 0;min-width:0;}
.mega-title{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.04em;
  margin-bottom:12px;
}
.mega-link{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px;
  border-radius:var(--radius-sm);
  transition:background-color 200ms var(--ease);
}
.mega-link:hover{background:rgba(255,255,255,.05);}
.mega-ico{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  flex-shrink:0;
  border-radius:9px;
  background:rgba(47,107,255,.16);
  color:var(--accent);
  font-size:13px;
}
.mega-link strong{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}
.mega-link em{
  display:block;
  font-style:normal;
  font-size:12px;
  color:var(--text-3);
  line-height:1.5;
}
.mega-card{
  display:block;
  padding:12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  margin-bottom:10px;
  transition:border-color 200ms var(--ease),transform 200ms var(--ease);
}
.mega-card:hover{border-color:rgba(47,107,255,.45);transform:translateY(-2px);}
.mega-time{
  display:block;
  font-size:12px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:4px;
}
.mega-card-title{
  display:block;
  font-size:13px;
  line-height:1.55;
  color:var(--text-2);
}
.mega-card:hover .mega-card-title{color:var(--text);}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  font-size:16px;
}

.mobile-drawer{
  display:none;
  max-height:0;
  overflow:hidden;
  border-top:1px solid var(--line);
  background:rgba(10,17,31,.98);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:max-height 280ms var(--ease);
}
.mobile-drawer.is-open{max-height:560px;}
.drawer-inner{padding:14px 0 22px;}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 4px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-link.is-active{color:var(--accent);}
.drawer-link i{font-size:12px;color:var(--text-3);}
.drawer-group-title{
  font-size:12px;
  color:var(--text-3);
  padding:16px 4px 8px;
}
body.no-scroll{overflow:hidden;}

/* ============ 面包屑 / Hero ============ */
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding-top:28px;
}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:rgba(255,255,255,.2);}
.crumbs .current{color:var(--text-2);}

.page-hero{
  position:relative;
  overflow:hidden;
  padding:0 0 64px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 20% 0%,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(circle at 20% 0%,#000 0%,transparent 70%);
  pointer-events:none;
}
.hero-glow{
  position:absolute;
  top:-160px;
  right:-120px;
  width:620px;
  height:620px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(33,230,193,.16) 0%,rgba(33,230,193,0) 66%);
  pointer-events:none;
}
.hero-row{position:relative;padding-top:40px;}
.hero-copy h1{
  font-size:44px;
  line-height:1.28;
  margin:18px 0 0;
  letter-spacing:0;
}
.hero-copy h1 .h1-line{
  display:inline-block;
  padding-bottom:6px;
  border-bottom:2px solid var(--accent);
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
  max-width:560px;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:18px;
  margin-top:28px;
  flex-wrap:wrap;
}
.hero-meta{
  display:flex;
  align-items:center;
  gap:0;
  margin-top:30px;
  flex-wrap:wrap;
  color:var(--text-3);
  font-size:13px;
}
.hero-meta span{padding:0 14px;border-left:1px solid var(--line);}
.hero-meta span:first-child{padding-left:0;border-left:0;}
.hero-meta b{color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums;}

.media{
  position:relative;
  overflow:hidden;
  border-radius:14px;
  background:linear-gradient(135deg,#0E1729,#0A111F);
  border:1px solid var(--line);
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform 280ms var(--ease);}
.hero-media{aspect-ratio:4/3;border-radius:18px;box-shadow:var(--shadow-card);}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,19,0) 42%,rgba(6,10,19,.72) 100%);
  pointer-events:none;
}
.hero-media-cap{
  position:absolute;
  left:16px;
  right:16px;
  bottom:14px;
  z-index:2;
  font-size:12px;
  color:var(--text-2);
}

/* ============ 板块通用 ============ */
.section{padding:var(--gap-section) 0;}
.section-alt{background:var(--bg-900);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:38px;max-width:760px;}
.section-head h2{
  font-size:32px;
  line-height:1.34;
  margin-bottom:14px;
}
.section-head p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--accent);
  letter-spacing:.06em;
  margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--accent);
  opacity:.7;
}

/* ============ 目录 + 编号列表 ============ */
.guide-wrap{padding-top:64px;}
.guide-toc{position:relative;}
.toc-card{
  position:sticky;
  top:96px;
  padding:22px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.toc-card::before{
  content:"";
  position:absolute;
  top:0;left:22px;right:22px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(33,230,193,.55),transparent);
}
.toc-title{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.08em;
  margin-bottom:14px;
}
.toc-nav{display:flex;flex-direction:column;}
.toc-nav a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:8px 8px 8px 10px;
  font-size:14px;
  color:var(--text-2);
  border-radius:10px;
  border-left:2px solid transparent;
  transition:color 200ms var(--ease),background-color 200ms var(--ease),border-color 200ms var(--ease);
}
.toc-nav a span.no{
  font-size:12px;
  font-weight:700;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  flex-shrink:0;
}
.toc-nav a:hover{color:var(--text);background:rgba(255,255,255,.045);}
.toc-nav a.is-current{
  color:#fff;
  background:rgba(47,107,255,.14);
  border-left-color:var(--accent);
}
.toc-nav a.is-current span.no{color:var(--accent);}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.toc-foot .btn{width:100%;}

.guide-list{
  border-top:1px solid var(--line);
}
.guide-item{
  display:flex;
  gap:24px;
  padding:30px 4px;
  border-bottom:1px solid var(--line);
  transition:background-color 200ms var(--ease);
}
.guide-item:hover{background:rgba(255,255,255,.022);}
.guide-num{
  flex:0 0 auto;
  width:58px;
  font-size:30px;
  font-weight:700;
  line-height:1.1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  opacity:.9;
}
.guide-body{flex:1 1 auto;min-width:0;}
.guide-body h3{
  font-size:20px;
  line-height:1.5;
  margin-bottom:10px;
}
.guide-body p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:640px;
}
.guide-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.guide-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:16px;
  flex-wrap:wrap;
}
.guide-time{
  font-size:12px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}

/* ============ 准备清单 ============ */
.check-figure{aspect-ratio:5/4;border-radius:var(--radius);box-shadow:var(--shadow-card);}
.check-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(47,107,255,.18),rgba(6,10,19,.1) 55%,rgba(6,10,19,.6));
  pointer-events:none;
}
.check-body h2{font-size:32px;line-height:1.34;margin-bottom:14px;}
.check-body > p{font-size:15px;line-height:1.85;color:var(--text-2);}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:26px;}
.check-item{
  display:flex;
  gap:14px;
  padding:18px 20px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color 200ms var(--ease),transform 200ms var(--ease);
}
.check-item:hover{border-color:rgba(47,107,255,.4);transform:translateY(-2px);}
.check-ico{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:11px;
  background:rgba(33,230,193,.1);
  border:1px solid rgba(33,230,193,.28);
  color:var(--accent);
  font-size:15px;
}
.check-item h4{font-size:16px;line-height:1.6;margin-bottom:4px;}
.check-item p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ============ 误区对照 ============ */
.compare-grid{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.compare-card{
  flex:1 1 calc(50% - 24px);
  min-width:280px;
  margin:0 12px 24px;
  padding:26px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.compare-card.is-good{border-color:rgba(33,230,193,.26);}
.compare-card.is-bad{border-color:rgba(255,122,107,.2);}
.compare-card h3{
  font-size:18px;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
}
.compare-card h3 i{font-size:14px;}
.compare-card.is-good h3 i{color:var(--accent);}
.compare-card.is-bad h3 i{color:var(--warn);}
.compare-card ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px;}
.compare-card li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
  padding-bottom:14px;
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.compare-card li:last-child{border-bottom:0;padding-bottom:0;}
.compare-card li .dot{
  flex:0 0 auto;
  width:6px;
  height:6px;
  margin-top:11px;
  border-radius:50%;
  background:var(--text-3);
}
.compare-card.is-good li .dot{background:var(--accent);}
.compare-card.is-bad li .dot{background:var(--warn);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:16px;}
.faq-item{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  overflow:hidden;
  transition:border-color 200ms var(--ease),background-color 200ms var(--ease);
}
.faq-item:hover{border-color:rgba(47,107,255,.35);}
.faq-q{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  min-height:56px;
  padding:18px 22px 18px 24px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  transition:color 200ms var(--ease);
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform 200ms var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-q i{
  flex-shrink:0;
  font-size:13px;
  color:var(--text-3);
  transition:transform 200ms var(--ease),color 200ms var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--accent);}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows 280ms var(--ease);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:56px;
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(47,107,255,.18),rgba(10,17,31,.9) 46%,rgba(33,230,193,.1));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 30px 70px -40px rgba(47,107,255,.75);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-70%;
  left:-10%;
  width:60%;
  height:240%;
  background:linear-gradient(90deg,rgba(47,107,255,.22),rgba(47,107,255,0));
  transform:rotate(18deg);
  pointer-events:none;
}
.cta-band h2{font-size:28px;line-height:1.4;margin-bottom:12px;}
.cta-band p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:560px;}
.cta-actions{
  display:flex;
  align-items:center;
  gap:18px;
  justify-content:flex-end;
  flex-wrap:wrap;
  position:relative;
}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-900);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{display:flex;flex-wrap:wrap;}
.footer-col{padding-right:24px;margin-bottom:32px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:320px;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-title{
  font-size:13px;
  color:var(--text);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.footer-links a:hover{color:var(--primary);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact span{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.footer-contact i{color:var(--accent);font-size:13px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  margin-top:12px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.footer-bottom .legal{display:flex;gap:18px;}
.footer-bottom .legal a{color:var(--text-3);font-size:13px;}
.footer-bottom .legal a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--gap-section:72px;}
  .container{padding:0 20px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{display:block;}
  .nav-mega{display:none;}
  .hero-copy h1{font-size:36px;line-height:1.3;}
  .section-head h2,.check-body h2{font-size:28px;}
  .hero-media{margin-top:32px;aspect-ratio:16/10;}
  .guide-toc{margin-bottom:28px;}
  .toc-card{position:static;}
  .toc-nav{flex-direction:row;flex-wrap:wrap;gap:6px;}
  .toc-nav a{flex:1 1 calc(50% - 6px);border-left:0;border:1px solid var(--line);}
  .toc-nav a.is-current{border-color:rgba(33,230,193,.5);}
  .check-figure{aspect-ratio:16/10;margin-bottom:28px;}
  .compare-card{flex:1 1 100%;}
  .cta-band{padding:40px 32px;}
  .cta-actions{justify-content:flex-start;margin-top:24px;}
  .footer-col{width:50% !important;}
}

@media (max-width:640px){
  :root{--gap-section:56px;}
  .container{padding:0 16px;}
  .nav-bar{height:64px;}
  .brand-mark{width:30px;height:30px;font-size:15px;border-radius:9px;}
  .brand-name{display:none;}
  .brand-short{display:inline;}
  .crumbs{padding-top:20px;font-size:12px;}
  .page-hero{padding-bottom:44px;}
  .hero-row{padding-top:26px;}
  .hero-copy h1{font-size:30px;line-height:1.35;margin-top:14px;}
  .hero-sub{font-size:15.5px;line-height:1.8;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .link-arrow{justify-content:center;min-height:44px;}
  .hero-meta{font-size:12px;margin-top:22px;}
  .hero-meta span{padding:0 10px;}
  .section-head h2,.check-body h2,.cta-band h2{font-size:23px;line-height:1.42;}
  .section-head{margin-bottom:26px;}
  .guide-wrap{padding-top:40px;}
  .guide-item{flex-direction:column;gap:10px;padding:24px 0;}
  .guide-num{font-size:24px;width:auto;}
  .guide-body h3{font-size:18px;}
  .guide-body p{font-size:14.5px;}
  .toc-nav a{flex:1 1 100%;}
  .compare-card{padding:20px;min-width:0;}
  .faq-q{font-size:16px;padding:16px 18px 16px 20px;}
  .faq-a-inner p{padding:0 18px 18px;font-size:14.5px;}
  .cta-band{padding:28px 20px;}
  .cta-actions .btn{width:100%;}
  .footer-col{width:100% !important;padding-right:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{height:46px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .btn:hover,.check-item:hover,.mega-card:hover,.media img{transform:none !important;}
}

/* roulang page: category3 */
:root{
  --bg:#060A13;
  --bg-900:#0A111F;
  --bg-800:#0E1729;
  --glass:rgba(255,255,255,0.045);
  --line:rgba(255,255,255,0.09);
  --line-brand:rgba(47,107,255,0.35);
  --brand:#2F6BFF;
  --brand-soft:rgba(47,107,255,0.16);
  --accent:#21E6C1;
  --accent-soft:rgba(33,230,193,0.12);
  --warm:#FFB65C;
  --text:#E9EFFB;
  --muted:#9FB0C9;
  --faint:#67788F;
  --ok:#2BD98B;
  --warn:#FF7A6B;
  --info:#59A9FF;
  --r-card:16px;
  --r-sm:12px;
  --r-panel:20px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,0.06), 0 18px 40px -18px rgba(0,0,0,0.85);
  --shadow-btn:0 0 0 1px rgba(47,107,255,0.5), 0 10px 30px -8px rgba(47,107,255,0.65);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::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","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--text);
  font-weight:600;
  line-height:1.3;
  letter-spacing:0;
  font-family:inherit;
}
p{margin:0 0 1.2em;color:var(--muted)}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease)}
img{max-width:100%;display:block;border-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
time,.num{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(47,107,255,.4);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--alt{background:var(--bg-900);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;line-height:18px;color:var(--accent);
  letter-spacing:.04em;margin:0 0 14px;font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{font-size:32px;line-height:1.32;margin-bottom:14px}
.section-desc{color:var(--muted);font-size:16px;line-height:1.85;margin:0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(6,10,19,.74);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color 280ms var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,19,.94)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height 280ms var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand),#1B3FB8);
  color:#fff;font-size:16px;font-weight:700;
  box-shadow:0 0 0 1px rgba(47,107,255,.45),0 8px 20px -10px rgba(47,107,255,.9);
}
.brand-name{font-size:18px;font-weight:600;color:var(--text);letter-spacing:0}
.main-nav{display:flex;align-items:center;gap:24px;flex:1 1 auto;justify-content:center}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 2px;font-size:14.5px;color:var(--muted);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);
  color:var(--muted);font-size:13.5px;transition:all 200ms var(--ease);
}
.mega-trigger:hover{color:var(--text);border-color:var(--line-brand)}
.mega-trigger i{font-size:11px;transition:transform 200ms var(--ease)}
.mega-wrap.is-open .mega-trigger{color:var(--text);border-color:var(--line-brand);background:rgba(47,107,255,.14)}
.mega-wrap.is-open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:640px;
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
  background:rgba(10,17,31,.97);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line);border-radius:16px;padding:18px;
  box-shadow:0 24px 60px -24px rgba(0,0,0,.95);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms;
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;color:var(--faint);margin:0 0 10px;letter-spacing:.04em}
.mega-link{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px;border-radius:12px;border:1px solid transparent;
  transition:all 200ms var(--ease);
}
.mega-link:hover{background:rgba(255,255,255,.05);border-color:var(--line)}
.mega-link i{color:var(--accent);font-size:14px;margin-top:5px}
.mega-link strong{display:block;font-size:14px;color:var(--text);font-weight:600;line-height:1.5}
.mega-link span{display:block;font-size:12px;color:var(--faint);line-height:1.6}
.mega-post{
  display:block;padding:12px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);transition:all 200ms var(--ease);
}
.mega-post:hover{border-color:var(--line-brand);background:rgba(47,107,255,.1)}
.mega-post time{font-size:12px;color:var(--accent)}
.mega-post b{display:block;font-size:13.5px;color:var(--text);font-weight:600;margin-top:4px;line-height:1.55}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);color:var(--text);
  font-size:16px;align-items:center;justify-content:center;
}
.mobile-drawer{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(8,13,24,.98);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  max-height:0;overflow:hidden;
  transition:max-height 280ms var(--ease);
}
.mobile-drawer.is-open{max-height:640px}
.drawer-inner{padding:14px 24px 24px}
.drawer-link{
  display:flex;align-items:center;min-height:44px;
  padding:4px 12px;border-radius:10px;color:var(--muted);font-size:15px;
  border-left:2px solid transparent;
}
.drawer-link:hover{background:rgba(255,255,255,.05);color:var(--text)}
.drawer-link.is-active{color:var(--text);background:rgba(47,107,255,.14);border-left-color:var(--accent);font-weight:600}
.drawer-sub-toggle{
  display:flex;align-items:center;justify-content:space-between;width:100%;
  min-height:44px;padding:4px 12px;margin-top:6px;border-radius:10px;
  color:var(--faint);font-size:13px;border:1px dashed var(--line);
}
.drawer-sub{max-height:0;overflow:hidden;transition:max-height 280ms var(--ease)}
.drawer-sub.is-open{max-height:320px}
.drawer-sub a{display:block;padding:10px 12px;font-size:13.5px;color:var(--muted);border-radius:10px}
.drawer-sub a:hover{color:var(--text);background:rgba(255,255,255,.05)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;
  font-size:15px;font-weight:600;letter-spacing:0;
  transition:transform 200ms var(--ease),box-shadow 280ms var(--ease),background-color 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-btn)}
.btn-primary:hover{background:#4A7DFF;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,107,255,.6),0 16px 36px -10px rgba(47,107,255,.8);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);background:rgba(33,230,193,.08);transform:translateY(-2px);color:var(--text)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--accent);
  transition:gap 200ms var(--ease),color 200ms var(--ease);
}
.btn-text i{font-size:12px;transition:transform 200ms var(--ease)}
.btn-text:hover{color:#5CF2D8}
.btn-text:hover i{transform:translateX(4px)}
.btn-text:hover{gap:10px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:var(--faint)}
.crumb .now{color:var(--text)}

/* ---------- 分类首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:40px 0 64px;
  background:var(--bg-900);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 300px at 82% -8%, rgba(33,230,193,.14), transparent 70%),
    radial-gradient(560px 260px at 6% 4%, rgba(47,107,255,.16), transparent 72%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.10;
  -webkit-mask-image:linear-gradient(100deg,transparent 20%,#000 100%);
  mask-image:linear-gradient(100deg,transparent 20%,#000 100%);
}
.hero-inner{position:relative;z-index:2;max-width:800px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:999px;
  font-size:12px;color:var(--accent);
  background:var(--accent-soft);border:1px solid rgba(33,230,193,.35);
  margin-bottom:20px;
}
.page-title{
  font-size:44px;line-height:1.25;margin:0 0 0;
  letter-spacing:0;
}
.page-title .sep{color:var(--faint);font-weight:400;padding:0 6px}
.page-title::after{
  content:"";display:block;width:52px;height:2px;border-radius:2px;
  background:var(--accent);margin-top:20px;
}
.hero-lead{
  margin:20px 0 0;font-size:16.5px;line-height:1.85;color:var(--muted);max-width:680px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 数据带 ---------- */
.stat-band{padding:0 0 8px;background:var(--bg-900)}
.stat-strip{
  margin-top:-32px;position:relative;z-index:3;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-panel);
  padding:26px 12px;
  box-shadow:var(--shadow-card);
}
.stat-row{margin-left:0;margin-right:0;max-width:none}
.stat-row .columns{padding-left:12px;padding-right:12px}
.stat{display:flex;flex-direction:column;gap:2px;padding-left:20px}
.stat-row .columns:first-child .stat{padding-left:0;border-left:0}
.stat-row .columns .stat{border-left:1px solid var(--line)}
.stat-num{
  font-size:34px;font-weight:700;line-height:1.2;color:var(--accent);
  font-variant-numeric:tabular-nums;display:inline-flex;align-items:baseline;gap:2px;
}
.stat-unit{font-size:15px;font-weight:600;color:var(--accent)}
.stat-label{font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding:8px 0 4px}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(33,230,193,0),rgba(33,230,193,.5) 10%,rgba(33,230,193,.5) 90%,rgba(33,230,193,0));
}
.tl-item{position:relative;width:calc(50% - 32px);margin-bottom:36px}
.tl-item:last-child{margin-bottom:0}
.tl-item.right{margin-left:calc(50% + 32px)}
.tl-dot{
  position:absolute;top:30px;width:14px;height:14px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(33,230,193,.14),0 0 20px rgba(33,230,193,.85);
}
.tl-item.left .tl-dot{right:-39px}
.tl-item.right .tl-dot{left:-39px}
.tl-card{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform 200ms var(--ease),border-color 200ms var(--ease),box-shadow 280ms var(--ease);
}
.tl-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.45);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 22px 46px -20px rgba(0,0,0,.9),0 0 0 1px rgba(47,107,255,.18)}
.card-media{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(140deg,#101B31 0%,#0A1424 55%,#102033 100%);
}
.card-media::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(115deg,transparent 46%,rgba(33,230,193,.14) 47%,transparent 48%),
    linear-gradient(65deg,transparent 62%,rgba(47,107,255,.18) 63%,transparent 64%);
}
.card-media img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;transition:transform 280ms var(--ease)}
.tl-card:hover .card-media img{transform:scale(1.02)}
.tl-body{padding:24px}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.tl-meta time{font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  font-size:12px;line-height:18px;border-radius:999px;
  color:var(--text);background:var(--glass);
  border:1px solid rgba(47,107,255,.42);
}
.badge--accent{color:var(--accent);border-color:rgba(33,230,193,.42);background:rgba(33,230,193,.1)}
.badge--warm{color:var(--warm);border-color:rgba(255,182,92,.42);background:rgba(255,182,92,.1)}
.tl-body h3{font-size:22px;line-height:1.34;margin-bottom:10px}
.tl-body p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0 0 14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  font-size:12px;color:var(--muted);border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:all 200ms var(--ease);
}
.tag:hover{color:var(--text);border-color:var(--line-brand)}

/* ---------- 参与流程 ---------- */
.flow-row{margin-left:-12px;margin-right:-12px;max-width:none}
.flow-row .columns{padding-left:12px;padding-right:12px}
.flow-card{
  height:100%;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.flow-card:hover{transform:translateY(-2px);border-color:var(--line-brand)}
.flow-num{
  font-size:26px;font-weight:700;color:var(--accent);line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.flow-card h3{font-size:17px;margin:14px 0 8px;line-height:1.5}
.flow-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.faq-aside{position:sticky;top:96px}
.faq-aside h2{font-size:32px;line-height:1.32;margin-bottom:14px}
.faq-aside p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:24px}
.faq-list{display:grid;gap:16px}
.faq-item{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color 200ms var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.16)}
.faq-item.is-open{border-color:rgba(33,230,193,.34)}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;text-align:left;padding:20px 22px;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
  min-height:44px;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--accent);opacity:0;transform:scaleY(.4);transform-origin:center;
  transition:opacity 200ms var(--ease),transform 200ms var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;transform:scaleY(1)}
.faq-arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  font-size:11px;transition:transform 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--accent);border-color:rgba(33,230,193,.4)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--muted);margin:0}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-panel);
  padding:56px;box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:560px;height:560px;
  background:radial-gradient(circle,rgba(47,107,255,.22),transparent 62%);
  pointer-events:none;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,transparent 42%,rgba(33,230,193,.07) 50%,transparent 58%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{font-size:32px;line-height:1.32;margin-bottom:12px}
.cta-inner p{font-size:15.5px;line-height:1.8;color:var(--muted);margin:0;max-width:520px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-800);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.footer-col{padding:0 12px 32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.85;color:var(--muted);max-width:300px;margin:0 0 16px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags .badge{border-color:var(--line);color:var(--muted)}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin:0 0 16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);display:inline-block}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:grid;gap:12px}
.footer-contact span{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);line-height:1.7}
.footer-contact i{color:var(--accent);font-size:13px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:22px;margin-top:8px;
  font-size:13px;color:var(--faint);
}
.footer-bottom .legal{display:flex;gap:20px}
.footer-bottom .legal a{color:var(--muted)}
.footer-bottom .legal a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px}
  .page-title{font-size:48px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .cta-band{padding-bottom:72px}
  .container{padding:0 20px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .mega-wrap{display:none}
  .header-actions .btn-primary{display:none}
  .page-title{font-size:36px;line-height:1.3}
  .section-head h2,.faq-aside h2,.cta-inner h2{font-size:28px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-panel{padding:40px}
  .stat{font-size:15px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .cta-band{padding-bottom:56px}
  .page-hero{padding:28px 0 52px}
  .page-title{font-size:30px;line-height:40px}
  .hero-lead{font-size:15px}
  .stat-strip{margin-top:-26px;padding:20px 8px}
  .stat-row .columns .stat{border-left:0;padding-left:0}
  .stat-row .columns:nth-child(n+3) .stat{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
  .stat-num{font-size:28px}
  .timeline::before{left:9px;transform:none}
  .tl-item,.tl-item.left,.tl-item.right{width:calc(100% - 44px);margin-left:44px}
  .tl-item.left .tl-dot,.tl-item.right .tl-dot{left:-42px;right:auto;top:26px}
  .tl-body{padding:18px}
  .tl-body h3{font-size:19px}
  .flow-card{padding:20px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 18px}
  .cta-panel{padding:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-col{width:50% !important}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-title{font-size:28px;line-height:1.32}
  .section-head h2,.faq-aside h2,.cta-inner h2{font-size:24px}
  .hero-actions .btn{width:100%}
  .footer-col{width:100% !important}
  .cta-inner{gap:24px}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
  .btn:hover,.tl-card:hover,.flow-card:hover{transform:none !important}
  .tl-card:hover .card-media img{transform:none !important}
}

/* roulang page: category4 */
:root{
  --bg-900:#060A13;
  --bg-800:#0A111F;
  --bg-700:#0E1729;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(47,107,255,.35);
  --brand:#2F6BFF;
  --brand-soft:rgba(47,107,255,.14);
  --accent:#21E6C1;
  --warm:#FFB65C;
  --text:#E9EFFB;
  --text-2:#9FB0C9;
  --text-3:#67788F;
  --white:#FFFFFF;
  --ok:#2BD98B;
  --warn:#FF7A6B;
  --info:#59A9FF;
  --r-card:16px;
  --r-sm:12px;
  --r-lg:20px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -18px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:200ms;
  --t-mid:280ms;
  --gap-section:96px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);}
a:hover{color:var(--text);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1.2em;padding-left:1.4em;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:600;line-height:1.3;letter-spacing:0;color:var(--text);}
h1{font-size:44px;line-height:56px;}
h2{font-size:32px;line-height:44px;}
h3{font-size:22px;line-height:32px;}
h4{font-size:18px;line-height:28px;}
button{font-family:inherit;}
::selection{background:rgba(47,107,255,.35);color:var(--white);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.row{margin-left:-12px;margin-right:-12px;}
.row .columns{padding-left:12px;padding-right:12px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(6,10,19,.78);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color var(--t-mid) var(--ease);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height var(--t-mid) var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(47,107,255,.9),rgba(33,230,193,.55));
  color:#04101c;font-size:16px;font-weight:700;
  box-shadow:0 8px 24px -10px rgba(47,107,255,.9);
}
.brand-name{font-size:18px;font-weight:600;color:var(--text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:24px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:72px;
  font-size:15px;
  color:var(--text-2);
  padding:0 2px;
  transition:color var(--t-fast) var(--ease),height var(--t-mid) var(--ease);
}
.site-header.is-scrolled .nav-link{height:64px;}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:14px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t-mid) var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text-2);
  font-size:14px;
  cursor:pointer;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.mega-trigger i{font-size:11px;transition:transform var(--t-fast) var(--ease);}
.mega-trigger:hover,.mega-trigger:focus-visible{color:var(--text);border-color:rgba(33,230,193,.45);background:rgba(255,255,255,.07);}
.mega-wrap.is-open .mega-trigger{color:var(--text);border-color:rgba(33,230,193,.45);}
.mega-wrap.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:640px;
  max-width:calc(100vw - 32px);
  background:rgba(10,17,31,.96);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
  padding:22px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity 180ms var(--ease),transform 180ms var(--ease),visibility 180ms;
  pointer-events:none;
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
.mega-title{font-size:12px;letter-spacing:0;color:var(--text-3);margin:0 0 12px;text-transform:none;}
.mega-list{display:flex;flex-direction:column;gap:6px;}
.mega-item{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px;border-radius:12px;
  border:1px solid transparent;
  transition:background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.mega-item:hover{background:rgba(255,255,255,.05);border-color:var(--line);}
.mega-item i{color:var(--accent);font-size:14px;margin-top:4px;flex:0 0 auto;}
.mega-item strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;}
.mega-item span{display:block;font-size:12px;color:var(--text-3);line-height:1.5;}
.mega-card{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  background:var(--glass);
  border:1px solid var(--line);
  margin-bottom:10px;
  transition:border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.mega-card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.mega-card time{display:block;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.mega-card strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text);
  font-size:16px;
  cursor:pointer;
}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(10,17,31,.98);
  padding:14px 0 22px;
}
.mobile-drawer.is-open{display:block;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;
  padding:0 4px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.drawer-link.is-active{color:var(--text);font-weight:600;}
.drawer-link i{font-size:12px;color:var(--text-3);}
.drawer-group-title{font-size:12px;color:var(--text-3);margin:16px 0 6px;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:20px 0 0;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--text-3);opacity:.7;}
.crumbs .current{color:var(--text);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  margin-top:18px;
  padding:56px 0 48px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(6,10,19,.86),rgba(6,10,19,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.55;
  z-index:0;
}
.cat-hero::after{
  content:"";
  position:absolute;
  width:560px;height:560px;
  right:-140px;top:-220px;
  background:radial-gradient(circle,rgba(33,230,193,.18),rgba(33,230,193,0) 68%);
  z-index:0;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.cat-hero-inner{max-width:760px;}
.cat-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid rgba(33,230,193,.35);
  color:var(--accent);
  font-size:12px;
  line-height:18px;
  margin-bottom:18px;
}
.cat-hero h1{font-size:44px;line-height:56px;margin-bottom:16px;}
.cat-hero h1 .hl{color:var(--brand);}
.cat-hero .lead{font-size:16px;line-height:1.9;color:var(--text-2);max-width:640px;margin-bottom:14px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:26px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:12px;
  font-size:15px;font-weight:600;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.btn-primary{
  background:var(--brand);
  color:var(--white);
  box-shadow:0 0 0 1px rgba(47,107,255,.5),0 10px 30px -8px rgba(47,107,255,.65);
}
.btn-primary:hover{background:#3f78ff;color:var(--white);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,107,255,.6),0 16px 38px -10px rgba(47,107,255,.8);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--accent);background:rgba(255,255,255,.06);color:var(--text);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);
  font-size:15px;font-weight:600;
  background:none;border:none;padding:0;cursor:pointer;
}
.btn-text i{transition:transform var(--t-fast) var(--ease);}
.btn-text:hover{color:#5b8cff;}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- 主内容区 ---------- */
.section{padding:var(--gap-section) 0;}
.section-tight{padding:72px 0;}
.section-bg-800{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--text-2);font-size:16px;}
.eyebrow{
  display:inline-block;
  font-size:12px;line-height:18px;
  color:var(--accent);
  letter-spacing:0;
  margin-bottom:12px;
}

.support-layout{margin-top:8px;}
.anchor-nav{
  position:sticky;
  top:96px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.anchor-nav .anchor-title{font-size:13px;color:var(--text-3);margin:0 0 12px;}
.anchor-list{display:flex;flex-direction:column;gap:4px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  min-height:44px;
  padding:8px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:background-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.anchor-list a i{font-size:12px;color:var(--accent);}
.anchor-list a:hover{background:rgba(255,255,255,.05);color:var(--text);border-color:var(--line);}
.anchor-list a.is-current{background:var(--brand-soft);border-color:var(--line-strong);color:var(--text);}
.anchor-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.75;
  color:var(--text-3);
}

.acc-group{margin-bottom:48px;}
.acc-group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.group-head .num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  border:1px solid rgba(33,230,193,.35);
  border-radius:999px;
  padding:2px 10px;
  line-height:20px;
}
.group-head h2{font-size:24px;line-height:34px;margin:0;}
.group-desc{color:var(--text-2);font-size:15px;margin:0 0 20px;}

.acc-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:16px;
  overflow:hidden;
  transition:border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease);
}
.acc-item:last-child{margin-bottom:0;}
.acc-item:hover{border-color:rgba(47,107,255,.3);}
.acc-item.is-open{border-color:var(--line-strong);background:rgba(255,255,255,.06);}
.acc-head{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;
  min-height:60px;
  padding:20px 22px 20px 24px;
  background:none;
  border:none;
  text-align:left;
  cursor:pointer;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  transition:color var(--t-fast) var(--ease);
}
.acc-head::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform var(--t-mid) var(--ease);
}
.acc-item.is-open .acc-head::before{transform:scaleY(1);}
.acc-head i{
  flex:0 0 auto;
  font-size:13px;
  color:var(--text-3);
  transition:transform var(--t-mid) var(--ease),color var(--t-fast) var(--ease);
}
.acc-item.is-open .acc-head i{transform:rotate(180deg);color:var(--accent);}
.acc-body{display:none;padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.9;}
.acc-item.is-open .acc-body{display:block;}
.acc-body p{margin-bottom:.9em;}
.acc-body p:last-child{margin-bottom:0;}
.acc-body ol,.acc-body ul{margin:0 0 .9em;padding-left:1.3em;}
.acc-body li{margin-bottom:.4em;}

/* ---------- 处理流程 ---------- */
.flow-wrap{position:relative;margin-top:8px;}
.flow-line{
  position:absolute;
  left:0;right:0;top:26px;
  height:1px;
  background:linear-gradient(90deg,rgba(33,230,193,.45),rgba(33,230,193,.12));
  box-shadow:0 0 12px rgba(33,230,193,.35);
}
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;}
.flow-step{position:relative;padding-top:0;}
.flow-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:28px;
  font-weight:700;
  color:var(--accent);
  line-height:1;
  margin-bottom:20px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:52px;height:52px;
  background:rgba(10,17,31,.95);
  border:1px solid rgba(33,230,193,.35);
  border-radius:14px;
  box-shadow:0 0 24px -8px rgba(33,230,193,.6);
}
.flow-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.flow-card:hover{transform:translateY(-2px);border-color:rgba(47,107,255,.35);}
.flow-card h3{font-size:20px;line-height:30px;margin-bottom:10px;}
.flow-card p{color:var(--text-2);font-size:15px;margin:0;}

/* ---------- 图文块 ---------- */
.media-block{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center;}
.media-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:4/3;
  background:linear-gradient(140deg,#0d1930,#0a1526 60%,#0d2231);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-mid) var(--ease);}
.media-figure:hover img{transform:scale(1.02);}
.media-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,19,0) 45%,rgba(6,10,19,.55));
  pointer-events:none;
}
.media-cap{
  position:absolute;
  left:16px;bottom:14px;
  z-index:2;
  font-size:12px;
  color:var(--text-2);
  background:rgba(6,10,19,.6);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 12px;
}
.check-list{list-style:none;padding:0;margin:0;}
.check-list li{
  display:flex;gap:12px;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.06);
  font-size:15px;
  color:var(--text-2);
}
.check-list li:last-child{border-bottom:none;}
.check-list i{color:var(--accent);font-size:14px;margin-top:5px;flex:0 0 auto;}
.check-list strong{color:var(--text);font-weight:600;margin-right:6px;}

/* ---------- 数据带 ---------- */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 8px;
  box-shadow:var(--shadow-card);
}
.stat-item{
  text-align:center;
  padding:6px 16px;
  border-right:1px solid rgba(255,255,255,.08);
}
.stat-item:last-child{border-right:none;}
.stat-value{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:36px;
  font-weight:700;
  color:var(--accent);
  line-height:1.15;
}
.stat-value small{font-size:16px;font-weight:600;margin-left:2px;}
.stat-label{font-size:13px;color:var(--text-2);margin-top:6px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:linear-gradient(120deg,rgba(47,107,255,.16),rgba(10,17,31,.9) 55%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  width:420px;height:420px;
  right:-120px;top:-200px;
  background:radial-gradient(circle,rgba(33,230,193,.18),rgba(33,230,193,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:560px;}
.cta-copy h2{font-size:30px;line-height:42px;margin-bottom:10px;}
.cta-copy p{color:var(--text-2);font-size:15px;margin:0;}
.cta-actions{position:relative;z-index:1;display:flex;align-items:center;gap:20px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-800);
  border-top:1px solid var(--line);
  padding:56px 0 24px;
  margin-top:0;
}
.footer-grid{display:flex;flex-wrap:wrap;gap:32px 0;}
.footer-col{padding-right:24px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;color:var(--text);}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px;}
.footer-brand .brand-name{font-size:16px;font-weight:600;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-3);max-width:320px;margin-bottom:16px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;line-height:18px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-2);
  white-space:nowrap;
}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin:0 0 14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2);}
.footer-contact span{display:flex;align-items:flex-start;gap:8px;}
.footer-contact i{color:var(--accent);font-size:13px;margin-top:5px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px;
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);margin-left:16px;}
.footer-bottom a:hover{color:var(--text-2);}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px;}
}

@media (max-width:1024px){
  h1{font-size:38px;line-height:50px;}
  .cat-hero h1{font-size:38px;line-height:50px;}
  :root{--gap-section:72px;}
  .main-nav{gap:16px;}
  .nav-link{font-size:14px;}
  .mega-panel{width:560px;}
  .media-block{grid-template-columns:1fr;gap:28px;}
  .anchor-nav{position:static;}
  .flow-grid{gap:18px;}
  .cta-band{padding:40px;}
  .stat-value{font-size:30px;}
}

@media (max-width:900px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mega-wrap{display:none;}
  .footer-col{width:50% !important;padding-right:16px;}
}

@media (max-width:767px){
  :root{--gap-section:56px;}
  body{font-size:15px;}
  .container{padding-left:20px;padding-right:20px;}
  .cat-hero{padding:40px 0 36px;}
  .cat-hero h1{font-size:32px;line-height:44px;}
  .cat-hero .lead{font-size:15px;}
  .section-head h2{font-size:26px;line-height:38px;}
  .flow-grid{grid-template-columns:1fr;gap:24px;}
  .flow-line{left:26px;top:0;bottom:0;right:auto;width:1px;height:auto;
    background:linear-gradient(180deg,rgba(33,230,193,.45),rgba(33,230,193,.1));}
  .flow-step{padding-left:72px;}
  .flow-num{position:absolute;left:0;top:0;margin-bottom:0;}
  .stats-band{grid-template-columns:repeat(2,1fr);row-gap:20px;padding:22px 6px;}
  .stat-item{border-right:none;}
  .stat-item:nth-child(odd){border-right:1px solid rgba(255,255,255,.08);}
  .cta-band{padding:28px;}
  .cta-copy h2{font-size:24px;line-height:34px;}
  .footer-grid{gap:28px 0;}
  .footer-col{width:100% !important;padding-right:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom a{margin-left:0;margin-right:16px;}
}

@media (max-width:640px){
  h1{font-size:30px;line-height:40px;}
  .cat-hero h1{font-size:30px;line-height:40px;}
  h2{font-size:24px;line-height:34px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .brand-name{font-size:16px;}
  .acc-head{font-size:16px;padding:18px 18px 18px 20px;}
  .acc-body{padding:0 20px 20px;font-size:14.5px;}
  .group-head h2{font-size:21px;line-height:30px;}
  .stat-value{font-size:28px;}
  .media-figure{aspect-ratio:16/10;}
}

@media (max-width:400px){
  .brand-name{font-size:15px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
  }
  .btn:hover,.btn:active,.flow-card:hover,.mega-card:hover,.media-figure:hover img{transform:none !important;}
}

/* roulang page: category5 */
:root{
  --bg-900:#060A13;
  --bg-800:#0A111F;
  --bg-700:#0E1729;
  --glass:rgba(255,255,255,0.045);
  --glass-strong:rgba(255,255,255,0.075);
  --line:rgba(255,255,255,0.09);
  --line-brand:rgba(47,107,255,0.35);
  --brand:#2F6BFF;
  --brand-hi:#4A7DFF;
  --accent:#21E6C1;
  --warm:#FFB65C;
  --text:#E9EFFB;
  --text-2:#9FB0C9;
  --text-3:#67788F;
  --ok:#2BD98B;
  --warn:#FF7A6B;
  --info:#59A9FF;
  --radius-xl:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,0.06), 0 18px 40px -18px rgba(0,0,0,0.85);
  --shadow-brand:0 0 0 1px rgba(47,107,255,0.5), 0 10px 30px -8px rgba(47,107,255,0.65);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg-900);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font-cn);
  font-weight:600;
  line-height:1.3;
  letter-spacing:0;
  color:var(--text);
}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;border:0;}
a{
  color:var(--text-2);
  text-decoration:none;
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),opacity .2s var(--ease);
}
a:hover{color:var(--brand);}
ul,ol{list-style:none;margin:0;padding:0;}
button{
  font-family:inherit;
  font-size:inherit;
  cursor:pointer;
  border:0;
  background:none;
  color:inherit;
}
input,textarea,select{
  font-family:inherit;
  font-size:inherit;
  color:var(--text);
}
:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
::selection{background:rgba(47,107,255,.45);color:#fff;}

/* 容器 */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  letter-spacing:0;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .28s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--brand);
  color:#FFFFFF;
  box-shadow:var(--shadow-brand);
}
.btn-primary:hover{
  background:var(--brand-hi);
  color:#FFFFFF;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(47,107,255,0.65),0 16px 36px -10px rgba(47,107,255,0.8);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,0.18);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(33,230,193,0.55);
  background:rgba(255,255,255,0.05);
  color:#FFFFFF;
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--accent);
  height:44px;
}
.btn-link i{transition:transform .2s var(--ease);}
.btn-link:hover{color:#5cf3d6;}
.btn-link:hover i{transform:translateX(4px);}

/* 徽章与标签 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  line-height:1;
  letter-spacing:0;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  white-space:nowrap;
}
.badge-accent{
  color:var(--accent);
  background:rgba(33,230,193,0.08);
  border-color:rgba(33,230,193,0.35);
}
.badge-brand{
  color:#B8CCFF;
  background:rgba(47,107,255,0.14);
  border-color:rgba(47,107,255,0.4);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{
  color:#FFFFFF;
  border-color:rgba(47,107,255,0.5);
  background:rgba(47,107,255,0.14);
  transform:translateY(-2px);
}

/* 站点头部 */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(6,10,19,0.82);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background-color .28s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,19,0.94);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  display:grid;
  place-items:center;
  font-size:16px;
  font-weight:600;
  color:#FFFFFF;
  background:linear-gradient(140deg,#2F6BFF,#1B3C99);
  box-shadow:0 0 0 1px rgba(47,107,255,0.5),0 8px 22px -8px rgba(47,107,255,0.8);
}
.brand-name{
  font-size:18px;
  font-weight:600;
  color:var(--text);
  letter-spacing:0;
  white-space:nowrap;
}
.brand:hover .brand-name{color:#FFFFFF;}

.main-nav{
  display:flex;
  align-items:center;
  gap:24px;
  align-self:stretch;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:100%;
  font-size:15px;
  color:var(--text-2);
  letter-spacing:0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(.55);}
.nav-link.is-active{color:#FFFFFF;}
.nav-link.is-active::after{transform:scaleX(1);}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  font-size:14px;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.mega-trigger i{font-size:11px;transition:transform .2s var(--ease);}
.mega-trigger:hover{color:#FFFFFF;border-color:rgba(33,230,193,0.45);}
.mega-wrap.is-open .mega-trigger{color:#FFFFFF;border-color:rgba(33,230,193,0.55);}
.mega-wrap.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  right:0;
  top:calc(100% + 16px);
  width:640px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  padding:20px;
  border-radius:var(--radius-xl);
  background:rgba(10,17,31,0.97);
  border:1px solid var(--line);
  box-shadow:0 30px 60px -26px rgba(0,0,0,0.95);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.mega-wrap:hover .mega-panel,
.mega-wrap.is-open .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-col-title{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:0;
  margin-bottom:12px;
}
.mega-item{
  display:flex;
  gap:12px;
  padding:12px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.mega-item:hover{background:rgba(255,255,255,0.05);border-color:var(--line);}
.mega-item i{
  width:32px;
  height:32px;
  flex:0 0 32px;
  display:grid;
  place-items:center;
  border-radius:10px;
  font-size:13px;
  color:var(--accent);
  background:rgba(33,230,193,0.1);
  border:1px solid rgba(33,230,193,0.25);
}
.mega-item strong{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}
.mega-item span{
  display:block;
  font-size:12px;
  color:var(--text-3);
  line-height:1.6;
  margin-top:2px;
}
.mega-post{
  display:block;
  padding:12px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.035);
  border:1px solid var(--line);
  margin-bottom:10px;
  transition:border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.mega-post:last-child{margin-bottom:0;}
.mega-post:hover{border-color:rgba(47,107,255,0.45);transform:translateY(-2px);}
.mega-post time{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:12px;
  color:var(--text-3);
  margin-bottom:6px;
}
.mega-post strong{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  font-size:16px;
}
.nav-toggle:hover{border-color:rgba(47,107,255,0.5);color:#FFFFFF;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(8,13,24,0.98);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  max-height:calc(100vh - 64px);
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.drawer-inner{padding:16px 24px 28px;}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:44px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.drawer-link:hover{color:#FFFFFF;}
.drawer-link.is-active{color:var(--accent);}
.drawer-details{margin-top:8px;}
.drawer-details summary{
  display:flex;
  align-items:center;
  min-height:44px;
  font-size:15px;
  color:var(--text-2);
  cursor:pointer;
  list-style:none;
}
.drawer-details summary::-webkit-details-marker{display:none;}
.drawer-details summary::after{
  content:"\f107";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  margin-left:auto;
  font-size:12px;
  color:var(--text-3);
}
.drawer-details a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding-left:14px;
  font-size:14px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.drawer-cta{width:100%;margin-top:18px;}

/* 面包屑 */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:28px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text);}

/* 分类 Hero */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--bg-900);
  padding:40px 0 76px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center 28%;
  opacity:.16;
  pointer-events:none;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(620px 320px at 82% 4%, rgba(33,230,193,0.18), transparent 72%),
    radial-gradient(520px 300px at 6% 0%, rgba(47,107,255,0.18), transparent 74%),
    linear-gradient(180deg, rgba(6,10,19,0.72), var(--bg-900) 92%);
}
.page-hero .container{position:relative;z-index:1;}
.hero-inner{max-width:820px;}
.hero-inner h1{
  font-size:40px;
  line-height:1.28;
  margin:18px 0 18px;
  letter-spacing:0;
}
.hero-lead{
  font-size:18px;
  line-height:1.75;
  color:var(--text-2);
  margin-bottom:10px;
  max-width:640px;
}
.hero-sub{
  font-size:15px;
  line-height:1.85;
  color:var(--text-3);
  margin-bottom:30px;
  max-width:680px;
}

/* 搜索框 */
.search-box{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px;
  max-width:720px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:border-color .2s var(--ease),box-shadow .28s var(--ease);
}
.search-box:focus-within{
  border-color:rgba(47,107,255,0.65);
  box-shadow:0 0 0 4px rgba(47,107,255,0.14),var(--shadow-card);
}
.search-field{
  flex:1;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 10px;
  min-width:0;
}
.search-field i{font-size:15px;color:var(--text-3);}
.search-field input{
  flex:1;
  min-width:0;
  height:48px;
  border:0;
  outline:none;
  background:transparent;
  font-size:15px;
  color:var(--text);
  -webkit-appearance:none;
  appearance:none;
}
.search-field input::placeholder{color:var(--text-3);}
.search-box .btn{flex-shrink:0;}

.hot-tags{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:20px;
}
.hot-label{font-size:13px;color:var(--text-3);}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:26px;
}

/* 板块 */
.section{padding:96px 0;}
.section-alt{
  background:var(--bg-800);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:660px;margin-bottom:42px;}
.section-head h2{font-size:32px;line-height:1.3;}
.section-desc{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* 帮助入口卡 */
.help-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.help-card{
  position:relative;
  display:flex;
  flex-direction:column;
  padding:24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.help-card::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.22),transparent);
}
.help-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,107,255,0.4);
  background:rgba(255,255,255,0.06);
}
.help-icon{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:var(--radius-sm);
  font-size:18px;
  color:var(--accent);
  background:rgba(33,230,193,0.1);
  border:1px solid rgba(33,230,193,0.28);
}
.help-card h3{
  font-size:18px;
  line-height:1.45;
  margin:18px 0 8px;
}
.help-card p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  margin-bottom:18px;
}
.help-card .go{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--accent);
}
.help-card .go i{transition:transform .2s var(--ease);}
.help-card:hover .go i{transform:translateX(4px);}

/* 三步自查 */
.steps{
  position:relative;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:32px;
  padding-top:6px;
}
.steps::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:22px;
  height:1px;
  background:linear-gradient(90deg,rgba(33,230,193,0),rgba(33,230,193,0.4),rgba(33,230,193,0));
}
.step{position:relative;}
.step-num{
  position:relative;
  z-index:1;
  display:inline-block;
  padding-right:18px;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:28px;
  font-weight:700;
  line-height:1;
  color:var(--accent);
  background:var(--bg-800);
  letter-spacing:0;
}
.step h3{
  font-size:20px;
  line-height:1.45;
  margin:20px 0 10px;
}
.step p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  margin:0;
  max-width:320px;
}

/* 图文准备清单 */
.prepare{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:56px;
  align-items:center;
}
.prepare h2{font-size:32px;line-height:1.3;margin-bottom:16px;}
.prepare .lead{
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:28px;
}
.checklist li{
  position:relative;
  padding-left:38px;
  margin-bottom:18px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}
.checklist li:last-child{margin-bottom:0;}
.checklist li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;
  top:5px;
  width:22px;
  height:22px;
  display:grid;
  place-items:center;
  border-radius:7px;
  font-size:10px;
  color:var(--accent);
  background:rgba(33,230,193,0.12);
  border:1px solid rgba(33,230,193,0.38);
}
.checklist strong{color:var(--text);font-weight:600;}
.figure{
  position:relative;
  margin:0;
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(140deg,#0E1729,#0A111F);
  aspect-ratio:4/3;
  box-shadow:var(--shadow-card);
}
.figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .28s var(--ease);
}
.figure:hover img{transform:scale(1.02);}
.figure figcaption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:18px 20px;
  font-size:13px;
  line-height:1.6;
  color:var(--text-2);
  background:linear-gradient(180deg,rgba(6,10,19,0),rgba(6,10,19,0.9));
}

/* 规则清单 */
.rule-list{
  border-top:1px solid var(--line);
}
.rule-item{
  display:grid;
  grid-template-columns:240px 1fr;
  gap:32px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.rule-item h3{
  font-size:17px;
  line-height:1.6;
  display:flex;
  align-items:center;
  gap:10px;
}
.rule-item h3 i{
  font-size:14px;
  color:var(--warm);
}
.rule-item p{
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* CTA 条 */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:56px;
  border-radius:var(--radius-xl);
  background:var(--glass);
  border:1px solid var(--line-brand);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(115deg,rgba(47,107,255,0.22),transparent 56%),
    linear-gradient(300deg,rgba(33,230,193,0.14),transparent 62%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:560px;}
.cta-text h2{font-size:30px;line-height:1.32;margin-bottom:14px;}
.cta-text p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  margin:0;
}
.cta-actions{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
}

/* 页脚 */
.site-footer{
  background:var(--bg-800);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:flex;
  flex-wrap:wrap;
  padding-bottom:48px;
}
.footer-col{
  box-sizing:border-box;
  padding-right:32px;
  margin-bottom:24px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:30px;height:30px;font-size:14px;border-radius:9px;}
.footer-brand .brand-name{font-size:17px;font-weight:600;color:var(--text);}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  max-width:320px;
  margin-bottom:18px;
}
.footer-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin:0 0 18px;
  letter-spacing:0;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  line-height:1.6;
}
.footer-links a:hover{color:var(--brand);}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:12px;
  font-size:14px;
  line-height:1.6;
  color:var(--text-2);
}
.footer-contact i{
  color:var(--accent);
  margin-right:8px;
  font-size:13px;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .legal a{
  color:var(--text-3);
  margin-left:18px;
}
.footer-bottom .legal a:hover{color:var(--brand);}

/* 平板 */
@media (max-width:1024px){
  .main-nav{display:none;}
  .mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-name{font-size:17px;}

  .page-hero{padding:32px 0 60px;}
  .hero-inner h1{font-size:34px;}
  .hero-lead{font-size:17px;}

  .section{padding:72px 0;}
  .section-head h2{font-size:28px;}
  .help-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .prepare{grid-template-columns:1fr;gap:36px;}
  .prepare h2{font-size:28px;}
  .steps{
    grid-template-columns:1fr;
    gap:30px;
    padding-top:0;
    padding-left:44px;
  }
  .steps::before{
    left:14px;
    right:auto;
    top:6px;
    bottom:6px;
    width:1px;
    height:auto;
    background:linear-gradient(180deg,rgba(33,230,193,0.42),rgba(33,230,193,0));
  }
  .step-num{
    position:absolute;
    left:-44px;
    top:0;
    padding-right:0;
    background:transparent;
  }
  .step h3{margin-top:4px;}
  .step p{max-width:none;}

  .rule-item{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .cta-band{padding:40px;}
  .cta-text h2{font-size:26px;}
}

/* 手机 */
@media (max-width:640px){
  .container{padding-left:16px;padding-right:16px;}
  .header-inner{height:64px;gap:12px;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .brand-name{font-size:16px;}
  .brand-mark{width:30px;height:30px;font-size:14px;border-radius:9px;}

  .page-hero{padding:24px 0 48px;}
  .breadcrumb{font-size:12px;margin-bottom:20px;}
  .hero-inner h1{font-size:30px;line-height:1.35;margin:14px 0 14px;}
  .hero-lead{font-size:16px;line-height:1.8;}
  .hero-sub{font-size:14px;line-height:1.85;margin-bottom:24px;}

  .search-box{flex-direction:column;align-items:stretch;padding:12px;gap:10px;}
  .search-field{padding:0 4px;}
  .search-box .btn{width:100%;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hot-tags{gap:8px;}

  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .section-desc{font-size:14px;}

  .help-grid{grid-template-columns:1fr;gap:16px;}
  .help-card{padding:18px;}
  .help-card h3{font-size:17px;margin-top:14px;}

  .steps{padding-left:38px;gap:26px;}
  .steps::before{left:12px;}
  .step-num{left:-38px;font-size:24px;}
  .step h3{font-size:18px;}

  .prepare{gap:24px;}
  .prepare h2{font-size:24px;}
  .prepare .lead{font-size:14px;margin-bottom:20px;}
  .checklist li{font-size:14px;padding-left:34px;margin-bottom:14px;}
  .figure{border-radius:var(--radius);}

  .rule-item h3{font-size:16px;}
  .rule-item p{font-size:14px;}

  .cta-band{padding:26px 20px;gap:20px;}
  .cta-text h2{font-size:22px;}
  .cta-text p{font-size:14px;}
  .cta-actions{width:100%;gap:14px;}
  .cta-actions .btn{width:100%;}
  .cta-actions .btn-link{width:100%;justify-content:flex-start;}

  .site-footer{padding-top:48px;}
  .footer-col{width:100% !important;padding-right:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom .legal a{margin-left:0;margin-right:16px;}
}

@media (max-width:780px) and (min-width:521px){
  .footer-col{width:50% !important;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .help-card:hover,
  .btn:hover,
  .tag:hover,
  .mega-post:hover{transform:none;}
  .figure:hover img{transform:none;}
}