/* roulang page: index */
:root{
  --brand:#1F5FE0;
  --brand-dark:#1648A8;
  --brand-soft:#E8F0FE;
  --neon:#16E0C4;
  --ink:#0B1220;
  --ink-2:#131C2E;
  --warm:#FFB43A;
  --bg:#F5F8FD;
  --band:#EAF1FB;
  --card:#FFFFFF;
  --t1:#0E1626;
  --t2:#5A6478;
  --t3:#8A94A6;
  --line:#E3EAF5;
  --re-white:#EAF0FA;
  --r-btn:10px;
  --r-card:16px;
  --r-img:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px rgba(16,32,64,.08);
  --sh-3:0 14px 34px rgba(16,32,64,.14);
  --sp:8px;
  --w:1200px;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),text-decoration-color var(--ease);}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:2px;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:600;letter-spacing:0;}
h1{font-size:40px;line-height:1.25;font-weight:700;}
h2{font-size:30px;line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 16px;padding-left:22px;}
li{margin-bottom:8px;}
hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
::selection{background:var(--brand-soft);color:var(--brand-dark);}

/* ---------- 容器 ---------- */
.grid-container{
  max-width:var(--w);
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
.section{padding:88px 0;}
.section--band{background:var(--band);}
.section--tight{padding:56px 0;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.sec-head .sec-title{position:relative;padding-top:18px;}
.sec-head .sec-title::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:40px;height:8px;
  border-radius:4px;
  background:var(--neon);
}
.sec-head .sec-title h2{margin-bottom:8px;}
.sec-head p{margin:0;color:var(--t2);font-size:15px;max-width:640px;}
.more-link{
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
}
.more-link svg{width:16px;height:16px;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink);
}
.site-header::after{
  content:"";
  display:block;
  height:1px;
  background:linear-gradient(90deg,var(--brand),var(--neon));
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:64px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  text-decoration:none;
  flex:0 0 auto;
}
.logo:hover{color:#fff;text-decoration:none;}
.logo-mark{
  width:22px;height:22px;
  border-radius:6px;
  background:var(--brand);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.logo-mark svg{width:14px;height:14px;stroke:#fff;fill:none;stroke-width:1.8;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text .lt-top{font-size:11px;color:var(--neon);letter-spacing:2px;font-weight:500;}
.logo-text .lt-main{font-size:16px;font-weight:700;color:#fff;white-space:nowrap;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  list-style:none;
  padding:0;
  margin-bottom:0;
}
.nav-menu li{margin:0;}
.nav-link{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  color:#C7D2E4;
  font-size:15px;
  border-radius:8px;
  position:relative;
  text-decoration:none;
}
.nav-link:hover{color:#fff;text-decoration:none;}
.nav-link.is-active{color:#fff;text-shadow:0 0 12px rgba(22,224,196,.55);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:8px;
  height:2px;
  border-radius:2px;
  background:var(--neon);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-icon{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);
  border:1px solid rgba(234,240,250,.28);
  background:transparent;
  color:var(--re-white);
  cursor:pointer;
  transition:border-color var(--ease),background var(--ease),color var(--ease);
}
.btn-icon:hover{border-color:var(--neon);color:#fff;background:rgba(22,224,196,.12);}
.btn-icon svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;}
.nav-toggle{display:none;}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:currentColor;
  border-radius:2px;
  margin:3px 0;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--t1);border-color:var(--line);box-shadow:var(--sh-1);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:#CBDCFA;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-neon{background:var(--neon);color:#062C27;font-weight:600;}
.btn-neon:hover{background:#fff;color:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(22,224,196,.28);}
.btn-outline-neon{background:transparent;color:var(--neon);border-color:var(--neon);}
.btn-outline-neon:hover{background:rgba(22,224,196,.14);color:#fff;border-color:var(--neon);}
.btn-sm{min-height:38px;padding:0 16px;font-size:15px;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:12px;
  font-weight:500;
  line-height:1.6;
}
.badge-warm{background:rgba(255,180,58,.18);color:#8A5A00;}
.badge-neon{background:rgba(22,224,196,.16);color:#0A6E60;}
.badge-dark{background:rgba(234,240,250,.12);color:var(--re-white);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:80px 0 88px;
  background:
    radial-gradient(680px 320px at 88% -10%,rgba(31,95,224,.10),transparent 70%),
    linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(31,95,224,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(31,95,224,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  pointer-events:none;
}
.hero .grid-container{position:relative;z-index:1;}
.hero-copy{max-width:840px;}
.hero h1{margin:18px 0 16px;max-width:620px;}
.hero-sub{font-size:17px;color:var(--t2);max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.trust-list{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
}
.trust-list li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--t2);
  margin:0;
}
.trust-list svg{
  width:16px;height:16px;
  flex:0 0 auto;
  stroke:var(--brand);
  fill:none;
  stroke-width:2.2;
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
}
.float-card{
  position:absolute;
  left:-22px;
  bottom:26px;
  width:250px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-3);
  padding:18px 20px;
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.float-card .fc-ico{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.float-card .fc-ico svg{width:18px;height:18px;stroke:var(--brand);fill:none;stroke-width:1.9;}
.float-card strong{display:block;color:var(--t1);font-size:15px;font-weight:600;line-height:1.5;}
.float-card span{font-size:13px;color:var(--t3);}

/* ---------- 状态条 ---------- */
.status-strip{
  background:var(--ink);
  border-radius:var(--r-card);
  padding:22px 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px 32px;
  color:var(--re-white);
  box-shadow:var(--sh-2);
}
.status-item{display:flex;align-items:center;gap:10px;font-size:15px;}
.dot{
  width:9px;height:9px;
  border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 0 4px rgba(22,224,196,.18);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(22,224,196,.18);}
  50%{box-shadow:0 0 0 8px rgba(22,224,196,.06);}
}
.status-item .num{font-weight:700;color:#fff;font-size:18px;font-variant-numeric:tabular-nums;}
.status-item .lbl{color:#A9B6CC;font-size:14px;}

/* ---------- 数据条 ---------- */
.stats{margin-top:36px;}
.stat-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  height:100%;
  transition:transform var(--ease),box-shadow var(--ease);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat-card .num{font-size:32px;font-weight:700;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums;}
.stat-card .lbl{margin-top:6px;font-size:15px;color:var(--t2);}

/* ---------- 流程步骤 ---------- */
.steps{position:relative;}
.step{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px;
  height:100%;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#CBDCFA;}
.step .idx{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
  font-size:16px;
}
.step h3{margin-bottom:10px;font-size:19px;}
.step p{font-size:15px;line-height:1.7;color:var(--t2);margin:0;}

/* ---------- 非对称精选卡 ---------- */
.feature-grid{margin-top:4px;}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:20px;margin-bottom:10px;}
.card-body h3 a{color:var(--t1);text-decoration:none;}
.card-body h3 a:hover{color:var(--brand-dark);text-decoration:underline;}
.card-excerpt{font-size:15px;line-height:1.7;color:var(--t2);margin-bottom:18px;}
.card-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--t3);
  border-top:1px solid var(--line);
  padding-top:14px;
}
.card-meta .sep{width:1px;height:12px;background:var(--line);}
.card--large .card-media img{aspect-ratio:16/10;}
.card--large .card-body h3{font-size:24px;}
.card--flat{background:var(--brand-soft);border-color:#D3E2FB;box-shadow:none;}
.card--flat:hover{box-shadow:var(--sh-2);}

/* ---------- 图文错位 ---------- */
.split{align-items:center;}
.split + .split{margin-top:72px;}
.split-media img{
  width:100%;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  object-fit:cover;
  aspect-ratio:4/3;
}
.split-copy h3{font-size:26px;margin-bottom:14px;}
.split-copy .quote{
  border-left:3px solid var(--brand);
  padding:2px 0 2px 16px;
  font-size:16px;
  color:var(--t1);
  margin:0 0 18px;
  line-height:1.8;
}
.point-list{list-style:none;padding:0;margin:0;}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--t2);
  margin-bottom:12px;
}
.point-list .tick{
  width:22px;height:22px;
  border-radius:50%;
  background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
  margin-top:2px;
}
.point-list .tick svg{width:12px;height:12px;stroke:var(--brand-dark);fill:none;stroke-width:2.6;}

/* ---------- 最新信息 ---------- */
.news-list{margin-top:4px;}
.news-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  height:100%;
  display:flex;
  gap:20px;
  align-items:flex-start;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CBDCFA;}
.news-card .news-main{flex:1;min-width:0;}
.news-card h3{font-size:18px;margin:10px 0 8px;}
.news-card h3 a{color:var(--t1);text-decoration:none;display:block;}
.news-card h3 a:hover{color:var(--brand-dark);text-decoration:underline;}
.news-excerpt{
  font-size:15px;
  line-height:1.7;
  color:var(--t2);
  margin:0 0 14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--t3);
  border-top:1px solid var(--line);
  padding-top:12px;
}
.news-meta .read-more{font-size:14px;font-weight:500;color:var(--brand);white-space:nowrap;}
.news-thumb{
  flex:0 0 auto;
  width:150px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.empty-state{
  min-height:260px;
  border-radius:var(--r-card);
  border:1px dashed #C7D8F5;
  background:#F0F5FE;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  text-align:center;
  padding:40px 24px;
}
.empty-state svg{width:56px;height:56px;stroke:#9FB8E6;fill:none;stroke-width:1.6;}
.empty-state p{margin:0;color:var(--t2);font-size:15px;}

/* ---------- 评价与背书 ---------- */
.review-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  height:100%;
  transition:transform var(--ease),box-shadow var(--ease);
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:42px;height:42px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;
  font-weight:600;
  font-size:16px;
  flex:0 0 auto;
}
.review-top .rv-name{color:var(--t1);font-weight:600;font-size:15px;line-height:1.4;}
.review-top .rv-tag{font-size:12px;color:var(--t3);}
.review-card p{font-size:15px;line-height:1.75;margin:0;color:var(--t2);}
.stars{display:flex;gap:3px;margin-bottom:10px;}
.stars svg{width:15px;height:15px;fill:var(--warm);stroke:none;}
.logo-strip{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:36px;
}
.logo-box{
  flex:1 1 130px;
  min-height:64px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  display:flex;align-items:center;justify-content:center;
  color:#9AA6BC;
  font-size:14px;
  font-weight:600;
  filter:grayscale(1);
  opacity:.8;
  transition:filter var(--ease),opacity var(--ease),transform var(--ease),color var(--ease);
}
.logo-box:hover{filter:grayscale(0);opacity:1;color:var(--brand-dark);transform:translateY(-2px);}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item[open]{box-shadow:var(--sh-2);border-color:#CBDCFA;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px 20px 26px;
  font-size:16px;
  font-weight:600;
  color:var(--t1);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  position:relative;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--neon);
  opacity:0;
  transition:opacity var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-plus{
  width:22px;height:22px;
  flex:0 0 auto;
  position:relative;
  transition:transform var(--ease);
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-plus::before{left:3px;right:3px;top:10px;height:2px;}
.faq-plus::after{top:3px;bottom:3px;left:10px;width:2px;}
.faq-item[open] .faq-plus{transform:rotate(90deg);}
.faq-item[open] .faq-plus::after{opacity:0;}
.faq-body{padding:0 24px 22px 26px;font-size:15px;line-height:1.85;color:var(--t2);}

/* ---------- CTA 深色带 ---------- */
.cta-band{
  background:var(--ink);
  border-radius:var(--r-img);
  padding:52px 48px;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,var(--brand),var(--neon));
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:#A9B6CC;font-size:15px;margin:0;max-width:520px;}
.sub-form{display:flex;gap:12px;align-items:flex-start;}
.sub-form input[type="text"]{
  flex:1;
  min-height:48px;
  margin:0;
  border-radius:var(--r-btn);
  border:1px solid rgba(234,240,250,.24);
  background:rgba(255,255,255,.06);
  color:#fff;
  padding:0 16px;
  font-size:15px;
  box-shadow:none;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.sub-form input[type="text"]::placeholder{color:#7D8BA3;}
.sub-form input[type="text"]:focus{
  border-color:var(--neon);
  box-shadow:0 0 0 3px rgba(22,224,196,.22);
  background:rgba(255,255,255,.1);
  outline:none;
}
.form-note{margin-top:12px;font-size:13px;color:#7D8BA3;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#A9B6CC;margin-top:88px;}
.footer-main{padding:64px 0 40px;}
.footer-brand .logo-text .lt-main{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:#8E9CB4;margin:16px 0 0;max-width:340px;}
.footer-col h4{color:var(--re-white);font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#A9B6CC;font-size:14px;text-decoration:none;display:inline-flex;align-items:center;min-height:32px;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:2px;}
.footer-contact{font-size:14px;line-height:2;color:#8E9CB4;}
.footer-bottom{
  border-top:1px solid rgba(234,240,250,.1);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7D8BA3;
}
.to-top{
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--neon);
  color:var(--neon);
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.to-top:hover{background:rgba(22,224,196,.14);transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:64px 0;}
  .hero{padding:64px 0 68px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  .split-copy h3{font-size:22px;}
  .split + .split{margin-top:52px;}
  .cta-band{padding:40px 30px;}
  .float-card{left:12px;bottom:12px;}
  .news-thumb{width:130px;}
}
@media (max-width:767px){
  .nav-menu{
    position:absolute;
    left:0;right:0;
    top:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--ink-2);
    padding:8px 16px 16px;
    border-bottom:1px solid rgba(234,240,250,.1);
    display:none;
    animation:fadeDown 200ms ease;
  }
  .nav-menu.is-open{display:flex;}
  @keyframes fadeDown{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
  .nav-menu li{border-bottom:1px solid rgba(255,255,255,.08);}
  .nav-menu li:last-child{border-bottom:0;}
  .nav-link{width:100%;padding:0 6px;border-radius:0;}
  .nav-link.is-active::after{left:6px;right:auto;width:28px;}
  .nav-toggle{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;}
  .nav-actions{margin-left:auto;}
  .nav-search{display:none;}
  .section{padding:52px 0;}
  .hero{padding:48px 0 56px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .hero-sub{font-size:16px;}
  .hero-cta .btn{flex:1 1 100%;}
  .news-card{flex-direction:column-reverse;padding:20px;}
  .news-thumb{width:100%;}
  .float-card{position:static;width:100%;margin-top:16px;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .footer-main{padding:48px 0 32px;}
  .site-footer{margin-top:56px;}
  .status-strip{padding:20px;gap:14px 24px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --primary:#1F5FE0;
  --primary-dark:#1648A8;
  --primary-soft:#E8F0FE;
  --neon:#16E0C4;
  --ink-dark:#0B1220;
  --ink-2:#131C2E;
  --warm:#FFB43A;
  --bg:#F5F8FD;
  --bg-alt:#EAF1FB;
  --card:#FFFFFF;
  --text-title:#0E1626;
  --text-body:#5A6478;
  --text-meta:#8A94A6;
  --invert:#EAF0FA;
  --line:#E3EAF5;
  --r-btn:10px;
  --r-card:16px;
  --r-hero:20px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-card:0 8px 24px rgba(16,32,64,.08);
  --sh-hover:0 14px 34px rgba(16,32,64,.14);
  --t:200ms ease;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-num:Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t),text-decoration-color var(--t);}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(22,224,196,.28);border-radius:8px;}
h1,h2,h3,h4{color:var(--text-title);margin:0;font-weight:600;}
h1{font-size:40px;line-height:1.25;font-weight:700;}
h2{font-size:30px;line-height:1.3;}
h3{font-size:20px;line-height:1.4;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;}
button{font-family:inherit;font-size:inherit;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media screen and (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:16px;font-weight:500;line-height:1;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
}
.btn:hover{text-decoration:none;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:var(--sh-card);}
.btn-neon{background:var(--neon);color:#08201C;font-weight:600;box-shadow:var(--sh-1);}
.btn-neon:hover{background:#fff;color:var(--primary-dark);box-shadow:var(--sh-card);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text-title);}
.btn-ghost:hover{background:var(--primary-soft);border-color:#cfe0fb;color:var(--primary-dark);}
.btn-outline-neon{background:transparent;border-color:rgba(22,224,196,.6);color:var(--neon);}
.btn-outline-neon:hover{background:rgba(22,224,196,.14);border-color:var(--neon);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  background:transparent;color:#C7D2E4;cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.btn-icon svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.btn-icon:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(22,224,196,.5);}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--ink-dark);}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,var(--primary),var(--neon));}
.nav-shell{position:relative;display:flex;align-items:center;gap:20px;min-height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;}
.logo:hover{text-decoration:none;}
.logo-mark{width:24px;height:24px;flex:0 0 24px;border-radius:7px;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;}
.logo-mark svg{width:17px;height:17px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.lt-top{font-size:11px;letter-spacing:1.5px;color:var(--neon);font-family:var(--font-num);}
.lt-main{font-size:15px;font-weight:600;color:#fff;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0 0 0 auto;padding:0;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:#C7D2E4;border-radius:8px;
  transition:color var(--t),background-color var(--t);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);text-decoration:none;}
.nav-link.is-active{color:#fff;text-shadow:0 0 10px rgba(22,224,196,.45);}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;background:var(--neon);box-shadow:0 0 8px rgba(22,224,196,.8);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor;}
@media screen and (max-width:1023px){
  .nav-menu{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;
    align-items:stretch;gap:0;margin:0;padding:8px 16px 16px;
    background:var(--ink-2);box-shadow:0 24px 44px rgba(0,0,0,.4);
  }
  .nav-menu.is-open{display:flex;animation:menuDrop 200ms ease;}
  .nav-menu li{list-style:none;}
  .nav-link{height:48px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;padding:0 4px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--neon);}
  .nav-toggle{display:inline-flex;}
  .nav-actions{margin-left:auto;}
}
@keyframes menuDrop{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
@media screen and (max-width:560px){
  .lt-main{font-size:13.5px;}
  .nav-actions .btn-sm{display:none;}
}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#E8F0FE 0%,#F5F8FD 60%,#FFFFFF 100%);
  padding:56px 0 52px;
}
.page-head::after{
  content:"";position:absolute;right:-140px;top:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,95,224,.20),rgba(31,95,224,0) 68%);
  pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--text-meta);margin-bottom:20px;}
.breadcrumb a{color:var(--text-meta);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--text-title);}
.page-head .page-title{max-width:820px;}
.page-lead{font-size:17px;line-height:1.8;max-width:780px;margin-top:18px;}
.anchor-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.anchor-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--text-body);
  font-size:14px;box-shadow:var(--sh-1);
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.anchor-pill:hover{color:var(--primary-dark);border-color:#cfe0fb;background:var(--primary-soft);transform:translateY(-2px);text-decoration:none;}
.anchor-pill.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--sh-card);}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section.alt{background:var(--bg-alt);}
.section-head{max-width:820px;margin-bottom:40px;}
.sec-title{position:relative;padding-top:18px;margin-bottom:16px;}
.sec-title::before{content:"";position:absolute;top:0;left:0;width:44px;height:3px;border-radius:2px;background:var(--neon);}
.sec-desc{font-size:16px;line-height:1.8;max-width:760px;}
.split-media{
  border-radius:var(--r-hero);overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-card);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.split-body{margin-bottom:28px;}
@media screen and (min-width:1024px){
  .split-body{margin-bottom:0;}
}
.split h2{margin-bottom:16px;}
.split .quote{
  border-left:3px solid var(--primary);background:var(--primary-soft);
  border-radius:0 12px 12px 0;padding:14px 18px;font-size:15px;color:var(--text-body);
  margin:0 0 22px;
}
.grid-margin-x>.cell.split-media{padding:0;}
@media screen and (max-width:640px){
  .grid-margin-x>.cell.split-media{padding-left:.9375rem;padding-right:.9375rem;}
}

/* ---------- 列表组件 ---------- */
.check-list{list-style:none;padding:0;display:grid;gap:14px;margin-top:24px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.7;}
.check-list .ico{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;margin-top:3px;
  background:var(--primary-soft);display:inline-flex;align-items:center;justify-content:center;
}
.check-list .ico svg{width:13px;height:13px;fill:none;stroke:var(--primary);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.check-list b{color:var(--text-title);font-weight:600;}
.step-list{list-style:none;counter-reset:step;padding:0;display:grid;gap:16px;margin-top:24px;}
.step-list li{position:relative;counter-increment:step;padding-left:46px;font-size:15px;line-height:1.7;min-height:28px;}
.step-list li::before{
  content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary-dark);font-family:var(--font-num);
  font-size:14px;font-weight:600;display:flex;align-items:center;justify-content:center;
}
.step-list b{color:var(--text-title);font-weight:600;}

/* ---------- 数据条 ---------- */
.stats-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px 20px;text-align:center;
  transition:transform var(--t),box-shadow var(--t);
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-card);}
.stat b{display:block;font-family:var(--font-num);font-size:32px;line-height:1.2;font-weight:700;color:var(--primary);}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--text-meta);}
@media screen and (max-width:1023px){
  .stats-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media screen and (max-width:420px){
  .stats-bar{grid-template-columns:minmax(0,1fr);}
}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
  transition:box-shadow var(--t),transform var(--t);
}
.faq-item:hover{box-shadow:var(--sh-card);}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--neon),var(--sh-card);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:44px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--text-title);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-ico{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.faq-ico::before{left:0;top:8px;width:18px;height:2px;}
.faq-ico::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] .faq-ico::after{transform:rotate(90deg);opacity:0;}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-body);}

/* ---------- 暗色 CTA ---------- */
.cta-wrap{padding:0 0 88px;}
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-dark);color:var(--invert);
  border-radius:var(--r-hero);padding:48px;
}
.cta-band::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--neon));}
.cta-band::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,196,.18),rgba(22,224,196,0) 70%);
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:#A9B6CC;font-size:16px;line-height:1.8;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .cta-wrap{padding-bottom:64px;}
  .cta-band{padding:36px 28px;}
}
@media screen and (max-width:639px){
  .section{padding:52px 0;}
  .cta-wrap{padding-bottom:52px;}
  .cta-band{padding:32px 20px;border-radius:16px;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-dark);color:#A9B6CC;padding:64px 0 0;}
.footer-main{padding-bottom:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9B6CC;max-width:340px;}
.footer-col h4{color:var(--invert);font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#A9B6CC;}
.footer-col a:hover{color:#fff;text-decoration:none;}
.footer-contact{font-size:14px;line-height:1.9;color:#A9B6CC;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13px;color:#8A94A6;
}
.to-top{
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(22,224,196,.55);
  background:transparent;color:var(--neon);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color var(--t),transform var(--t),box-shadow var(--t);
}
.to-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.to-top:hover{background:rgba(22,224,196,.14);transform:translateY(-2px);box-shadow:0 0 0 4px rgba(22,224,196,.12);}
@media screen and (max-width:639px){
  .site-footer{padding-top:52px;}
  .footer-bottom{font-size:12px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --blue:#1F5FE0;
  --blue-dark:#1648A8;
  --blue-soft:#E8F0FE;
  --neon:#16E0C4;
  --dark:#0B1220;
  --dark-2:#131C2E;
  --amber:#FFB43A;
  --bg:#F5F8FD;
  --bg-alt:#EAF1FB;
  --card:#FFFFFF;
  --title:#0E1626;
  --text:#5A6478;
  --meta:#8A94A6;
  --invert:#EAF0FA;
  --line:#E3EAF5;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px rgba(16,32,64,.08);
  --sh-3:0 14px 34px rgba(16,32,64,.14);
  --t:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--blue);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:var(--blue-dark)}
h1,h2,h3,h4{color:var(--title);font-weight:700;line-height:1.3;margin:0}
h1{font-size:40px}
h2{font-size:30px;font-weight:600}
h3{font-size:20px;font-weight:600}
h4{font-size:17px;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
.grid-container{max-width:1200px;width:100%;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
@media screen and (max-width:639px){.grid-container{padding-left:16px;padding-right:16px}}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--dark)}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,var(--blue),var(--neon))}
.nav-shell{display:flex;align-items:center;gap:16px;height:64px;position:relative}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--blue-dark));display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.logo-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.lt-top{font-size:11px;color:var(--neon);letter-spacing:.18em}
.lt-main{font-size:15px;font-weight:700;color:#fff;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:64px;font-size:15px;color:#C7D2E4;padding:0 2px;white-space:nowrap}
.nav-link:hover{color:#fff}
.nav-link.is-active{color:#fff;text-shadow:0 0 12px rgba(22,224,196,.55)}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;border-radius:2px;background:var(--neon)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.2);color:#C7D2E4;background:transparent;transition:border-color var(--t),color var(--t),background-color var(--t)}
.btn-icon:hover{border-color:var(--neon);color:#fff;background:rgba(22,224,196,.08)}
.btn-icon svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:4px;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.2)}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:#fff}
@media screen and (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-search{display:none}
  .nav-menu{position:absolute;top:64px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:6px 16px 16px;background:var(--dark-2);border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 18px 30px rgba(6,12,26,.35);max-height:calc(100vh - 64px);overflow:auto}
  .nav-menu.is-open{display:flex;animation:fadeDown .22s ease}
  .nav-menu>li{border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-menu>li:last-child{border-bottom:0}
  .nav-link{height:52px;width:100%;font-size:15px}
  .nav-link.is-active{color:var(--neon);text-shadow:none}
  .nav-link.is-active::after{display:none}
}
@keyframes fadeDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:500;line-height:1;white-space:nowrap;text-decoration:none;transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-neon{background:var(--neon);color:#062A26;font-weight:600}
.btn-neon:hover{background:#fff;color:var(--blue-dark);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-neon:active{transform:translateY(0)}
.btn-outline{border-color:var(--line);background:#fff;color:var(--title)}
.btn-outline:hover{background:var(--blue-soft);border-color:#C9DCFB;color:var(--blue-dark);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:500;line-height:1}
.badge-amber{background:#FFF3DC;color:#9A6100}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--meta)}
.breadcrumb a{color:var(--meta)}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb .sep{color:#C3CCDA}
.breadcrumb .current{color:var(--title)}

/* ---------- 标题区 ---------- */
.article-hero{background:linear-gradient(180deg,var(--blue-soft) 0%,#FFFFFF 100%);border-bottom:1px solid var(--line);padding:46px 0 38px}
.article-hero h1{font-size:36px;line-height:1.3;margin:16px 0 18px;max-width:920px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--meta)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-dot{width:5px;height:5px;border-radius:50%;background:var(--neon);display:inline-block}

/* ---------- 正文区 ---------- */
.article-section{padding:56px 0 40px}
.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:34px;max-width:780px;font-size:16px;line-height:1.9;color:var(--text);overflow-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{font-size:24px;font-weight:600;color:var(--title);line-height:1.45;margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--blue)}
.article-body h3{font-size:19px;font-weight:600;color:var(--title);margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--title);margin:24px 0 10px}
.article-body ul{list-style:disc;margin:0 0 20px;padding-left:24px}
.article-body ol{list-style:decimal;margin:0 0 20px;padding-left:24px}
.article-body li{margin:8px 0;line-height:1.9}
.article-body li::marker{color:var(--blue)}
.article-body strong{color:var(--title);font-weight:600}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--blue-soft);border-left:3px solid var(--blue);border-radius:0 12px 12px 0;color:#3B4761}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:24px auto;box-shadow:var(--sh-1)}
.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--blue-dark)}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body thead th{background:var(--bg-alt);color:var(--title);font-weight:600}
.article-body tbody tr:nth-child(even){background:#F8FAFE}
.article-body code{background:var(--bg-alt);border-radius:6px;padding:2px 6px;font-size:14px}

/* ---------- 空态 ---------- */
.article-empty{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);min-height:268px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:40px 24px;text-align:center}
.article-empty svg{width:72px;height:72px;fill:none;stroke:#B7C7E4;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.article-empty p{font-size:15px;color:var(--meta)}

/* ---------- 文末 ---------- */
.article-foot{margin-top:32px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--blue-soft);color:var(--blue-dark);font-size:13px}
.tag:hover{background:#D6E4FD;color:var(--blue-dark)}
.pager-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pager-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0FA}
.pager-card img{width:88px;height:62px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.pager-card .p-meta{font-size:12px;color:var(--meta);margin-bottom:4px}
.pager-card .p-title{font-size:15px;font-weight:600;color:var(--title);line-height:1.5}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- 数据条 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px}
.stat-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-1);padding:20px}
.stat-item .num{font-size:26px;font-weight:700;color:var(--blue);line-height:1.2}
.stat-item .lbl{font-size:13px;color:var(--meta);margin-top:6px}

/* ---------- 侧栏 ---------- */
.article-aside{display:flex;flex-direction:column;gap:20px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px}
.aside-card h3{font-size:16px;font-weight:600;line-height:1.2;margin-bottom:14px;padding-left:12px;border-left:3px solid var(--neon)}
.toc-list li a{display:block;padding:9px 0;font-size:14px;color:var(--text);border-bottom:1px dashed var(--line);transition:color var(--t),padding-left var(--t)}
.toc-list li:last-child a{border-bottom:0}
.toc-list li a:hover{color:var(--blue);padding-left:5px}
.hot-list li{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed var(--line)}
.hot-list li:last-child{border-bottom:0}
.hot-num{flex:0 0 22px;height:22px;border-radius:6px;background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:3px}
.hot-num.is-hot{background:#FFF3DC;color:#9A6100}
.hot-list a{font-size:14px;color:var(--text);line-height:1.6}
.hot-list a:hover{color:var(--blue)}
@media screen and (max-width:1023px){
  .article-aside{margin-top:32px}
}

/* ---------- 相关推荐 ---------- */
.related-section{padding:64px 0 72px;background:var(--bg-alt)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{position:relative;padding-top:18px}
.section-head h2::before{content:"";position:absolute;top:0;left:0;width:36px;height:6px;border-radius:3px;background:var(--neon)}
.section-head p{font-size:15px;color:var(--meta);margin-top:8px}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--blue);font-weight:500}
.more-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.more-link:hover{color:var(--blue-dark)}
.card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;text-decoration:none;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#CFE0FA}
.card-media{position:relative;aspect-ratio:16/9;background:var(--blue-soft);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:12px;flex:1;padding:22px}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5}
.card-body p{font-size:15px;line-height:1.7;color:var(--text)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;font-size:13px;color:var(--meta)}
.card-foot .read{color:var(--blue);font-weight:500}

/* ---------- CTA ---------- */
.cta-section{padding:64px 0 76px}
.cta-band{position:relative;background:var(--dark);border-radius:var(--r-lg);padding:48px;overflow:hidden}
.cta-band::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue),var(--neon))}
.cta-band h2{color:#fff;font-size:28px}
.cta-band .lead{color:#A9B6CC;font-size:15px;margin-top:12px;max-width:460px}
.cta-form{display:flex;gap:12px}
.cta-form input{flex:1;height:48px;min-width:0;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:15px;transition:border-color var(--t),box-shadow var(--t)}
.cta-form input::placeholder{color:#7E8CA6}
.cta-form input:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(22,224,196,.22)}
.form-note{font-size:12px;color:#7E8CA6;margin-top:10px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A9B6CC;padding:56px 0 0}
.footer-main{padding-bottom:36px}
.footer-brand p{font-size:14px;line-height:1.8;color:#8A98B2;margin-top:16px;max-width:340px}
.footer-col h4{color:var(--invert);font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:#A9B6CC}
.footer-col ul li a:hover{color:#fff}
.footer-contact{font-size:14px;line-height:2;color:#8A98B2}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;font-size:13px;color:#7E8CA6}
.to-top{width:42px;height:42px;border-radius:50%;border:1px solid rgba(22,224,196,.55);color:var(--neon);display:inline-flex;align-items:center;justify-content:center;transition:background-color var(--t),color var(--t),transform var(--t)}
.to-top:hover{background:rgba(22,224,196,.12);color:#fff;transform:translateY(-2px)}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  h1{font-size:32px}
  .article-hero{padding:38px 0 32px}
  .article-hero h1{font-size:30px}
  .article-body{padding:26px;max-width:100%}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .section-head h2{font-size:26px}
  .cta-band{padding:34px}
  .cta-band h2{font-size:24px}
  .cta-form{flex-direction:column;margin-top:20px}
  .cta-form .btn{width:100%}
}
@media screen and (max-width:639px){
  h1{font-size:28px}
  h2{font-size:22px}
  .article-hero h1{font-size:26px}
  .article-body{padding:20px;border-radius:14px}
  .article-body h2{font-size:20px;margin-top:32px}
  .meta-row{gap:8px 16px}
  .pager-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr 1fr;gap:12px}
  .stat-item{padding:16px}
  .stat-item .num{font-size:22px}
  .foot-actions .btn{flex:1}
  .footer-bottom{justify-content:center;text-align:center}
  .related-section{padding:52px 0 58px}
  .cta-section{padding:48px 0 60px}
  .cta-band{padding:26px 20px;border-radius:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#1F5FE0;
  --brand-dark:#1648A8;
  --brand-soft:#E8F0FE;
  --neon:#16E0C4;
  --dark:#0B1220;
  --dark-2:#131C2E;
  --warm:#FFB43A;
  --warm-soft:#FFF3DC;
  --bg:#F5F8FD;
  --bg-alt:#EAF1FB;
  --card:#FFFFFF;
  --t1:#0E1626;
  --t2:#5A6478;
  --t3:#8A94A6;
  --t-inv:#EAF0FA;
  --line:#E3EAF5;
  --r-btn:10px;
  --r-card:16px;
  --r-img:20px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px rgba(16,32,64,.08);
  --sh-3:0 14px 34px rgba(16,32,64,.14);
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:600;line-height:1.3;}
h1{font-size:40px;font-weight:700;line-height:1.25;}
h2{font-size:30px;}
h3{font-size:20px;}
h4{font-size:17px;}
p{margin:0 0 16px;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:2px;}
img{max-width:100%;height:auto;display:block;}
ul,ol{padding-left:22px;margin:0 0 16px;}
li{margin-bottom:8px;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:4px;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-margin-x>.cell{margin-bottom:0;}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--dark);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.site-header::after{
  content:"";display:block;height:2px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--neon) 60%,rgba(22,224,196,0) 100%);
}
.nav-shell{display:flex;align-items:center;gap:20px;min-height:64px;position:relative;}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:22px;height:22px;flex:0 0 22px;border-radius:6px;
  background:var(--brand);display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:16px;height:16px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.lt-top{font-size:11px;letter-spacing:.14em;color:var(--neon);font-weight:600;}
.lt-main{font-size:15px;font-weight:700;color:#FFFFFF;}
.nav-menu{list-style:none;display:flex;align-items:center;gap:6px;margin:0 0 0 auto;padding:0;}
.nav-menu li{margin:0;}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;border-radius:8px;
  color:#C7D2E4;font-size:15px;font-weight:500;position:relative;text-decoration:none;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);text-decoration:none;}
.nav-link.is-active{color:#fff;text-shadow:0 0 12px rgba(22,224,196,.45);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--neon);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:12px;}
.btn-icon{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid rgba(255,255,255,.18);border-radius:10px;
  color:#C7D2E4;cursor:pointer;transition:all var(--ease);
}
.btn-icon svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.btn-icon:hover{color:#fff;border-color:var(--neon);background:rgba(22,224,196,.08);}
.nav-toggle{display:none;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform var(--ease),opacity var(--ease);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--t1);border-color:var(--line);box-shadow:var(--sh-1);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:#C9DAF7;transform:translateY(-2px);}
.btn-neon{background:var(--neon);color:#062B27;font-weight:600;}
.btn-neon:hover{background:#fff;color:var(--brand-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(22,224,196,.28);}
.btn-ghost-neon{background:transparent;color:var(--neon);border-color:rgba(22,224,196,.55);}
.btn-ghost-neon:hover{background:rgba(22,224,196,.12);color:#fff;border-color:var(--neon);}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head .eyebrow{display:block;width:32px;height:8px;border-radius:4px;background:var(--neon);margin-bottom:16px;}
.section-head p{margin:8px 0 0;color:var(--t2);font-size:15px;max-width:640px;}
.more-link{font-size:15px;font-weight:500;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.more-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 分类页头（居中简洁型） ============ */
.cat-hero{padding:88px 0 56px;background:var(--bg);position:relative;overflow:hidden;}
.cat-hero::before{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,95,224,.10) 0%,rgba(31,95,224,0) 70%);
  pointer-events:none;
}
.cat-hero .inner{max-width:820px;margin:0 auto;text-align:center;position:relative;z-index:1;}
.crumb{display:flex;justify-content:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:24px;flex-wrap:wrap;}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:#C3CCDC;}
.crumb .current{color:var(--t2);}
.cat-hero h1{margin-bottom:18px;}
.cat-hero .lead{font-size:16px;line-height:1.9;color:var(--t2);max-width:700px;margin:0 auto 28px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:500;
}
.badge.warm{background:var(--warm-soft);color:#8A5B00;}
.badge svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 卡片网格 ============ */
.card{
  display:flex;flex-direction:column;height:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D4E1F5;}
.card-body{padding:26px;display:flex;flex-direction:column;flex:1;}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.card-icon svg{width:22px;height:22px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.card h3{margin-bottom:10px;}
.card p{font-size:15px;line-height:1.7;color:var(--t2);margin-bottom:18px;}
.card-link{margin-top:auto;font-size:14px;font-weight:500;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.card-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--ease);}
.card:hover .card-link svg{transform:translateX(3px);}
.card-media{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-featured .card-body{padding:30px;}
.card-featured h3{font-size:22px;}

/* ============ 图文块 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-2);}
.point-list{list-style:none;padding:0;margin:24px 0 0;}
.point-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;font-size:15px;color:var(--t2);}
.point-list .tick{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.point-list .tick svg{width:13px;height:13px;fill:none;stroke:var(--brand);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;}
.quote{
  border-left:3px solid var(--brand);background:var(--brand-soft);
  padding:16px 20px;border-radius:0 12px 12px 0;color:#25406E;font-size:15px;margin:20px 0 0;
}

/* ============ 对比块 ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:44px;}
.compare-col{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:18px;}
.compare-col .dot{width:10px;height:10px;border-radius:50%;display:inline-block;}
.compare-col.good{border-top:3px solid var(--neon);}
.compare-col.good .dot{background:var(--neon);}
.compare-col.warn{border-top:3px solid var(--warm);}
.compare-col.warn .dot{background:var(--warm);}
.compare-col ul{list-style:none;padding:0;margin:0;}
.compare-col li{position:relative;padding-left:18px;font-size:15px;color:var(--t2);margin-bottom:12px;}
.compare-col li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:#C9D6EA;}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);box-shadow:var(--sh-1);}
table.data{width:100%;border-collapse:collapse;min-width:640px;margin:0;}
table.data thead th{
  background:var(--dark);color:var(--t-inv);font-size:14px;font-weight:600;
  text-align:left;padding:16px 20px;white-space:nowrap;letter-spacing:.02em;
}
table.data tbody td{padding:15px 20px;font-size:15px;color:var(--t2);border-top:1px solid var(--line);}
table.data tbody tr:nth-child(even){background:#FAFCFF;}
table.data tbody tr:hover{background:var(--brand-soft);}
table.data tbody td:first-child{color:var(--t1);font-weight:600;}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-2);border-color:#D4E1F5;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;border-left:3px solid transparent;transition:border-color var(--ease),background var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-q{font-size:16px;font-weight:600;color:var(--t1);}
.faq-item[open] summary{border-left-color:var(--neon);background:#FBFDFF;}
.faq-sign{position:relative;flex:0 0 20px;width:20px;height:20px;color:var(--brand);}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-sign::before{left:2px;right:2px;top:9px;height:2px;}
.faq-sign::after{top:2px;bottom:2px;left:9px;width:2px;transition:transform var(--ease),opacity var(--ease);}
.faq-item[open] .faq-sign::after{transform:scaleY(0);opacity:0;}
.faq-a{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--t2);}
.faq-a p:last-child{margin-bottom:0;}

/* ============ 暗色 CTA ============ */
.cta-band{
  background:var(--dark);border-radius:var(--r-img);padding:56px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--neon) 50%,rgba(22,224,196,0) 100%);
}
.cta-band::after{
  content:"";position:absolute;bottom:-140px;right:-100px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,196,.16) 0%,rgba(22,224,196,0) 70%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;position:relative;z-index:1;}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:#A9B6CC;margin:0;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#A9B6CC;padding:72px 0 0;margin-top:0;}
.footer-main{padding-bottom:48px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#8FA0BC;max-width:320px;}
.footer-col h4{color:var(--t-inv);font-size:14px;margin-bottom:18px;font-weight:600;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#A9B6CC;}
.footer-col a:hover{color:#fff;text-decoration:none;}
.footer-contact{font-size:14px;line-height:2;color:#8FA0BC;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 28px;font-size:13px;color:#7C8CA8;
}
.to-top{
  width:42px;height:42px;border-radius:50%;background:transparent;
  border:1px solid rgba(22,224,196,.55);color:var(--neon);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:all var(--ease);
}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.to-top:hover{background:rgba(22,224,196,.14);border-color:var(--neon);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px;}
  h1,.cat-hero h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .cat-hero{padding:64px 0 48px;}
  .nav-toggle{display:inline-flex;}
  .nav-menu{
    position:absolute;top:calc(100% + 1px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--dark);border-top:1px solid rgba(255,255,255,.08);
    padding:8px 12px 16px;margin:0;display:none;
    box-shadow:0 24px 40px rgba(5,12,26,.5);
    animation:fadeSlide var(--ease);
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{height:48px;border-radius:8px;border-bottom:1px solid rgba(255,255,255,.08);}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--neon);}
  .split{grid-template-columns:1fr;gap:32px;}
  .compare-wrap{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px;}
  h1,.cat-hero h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .section{padding:52px 0;}
  .cat-hero{padding:52px 0 40px;}
  .card-body{padding:22px;}
  .card-featured .card-body{padding:24px;}
  .cta-band{padding:32px 20px;border-radius:16px;}
  .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .nav-actions .btn-sm{height:34px;padding:0 12px;font-size:13px;}
  .footer-bottom{justify-content:center;text-align:center;}
}
@media (max-width:420px){
  .nav-actions .btn-neon{display:none;}
}
@keyframes fadeSlide{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category3 */
:root{
  --brand:#1F5FE0;
  --brand-dark:#1648A8;
  --brand-soft:#E8F0FE;
  --neon:#16E0C4;
  --dark:#0B1220;
  --dark-2:#131C2E;
  --amber:#FFB43A;
  --amber-soft:#FFF4E0;
  --bg:#F5F8FD;
  --bg-alt:#EAF1FB;
  --card:#FFFFFF;
  --t1:#0E1626;
  --t2:#5A6478;
  --t3:#8A94A6;
  --on-dark:#EAF0FA;
  --line:#E3EAF5;
  --r-btn:10px;
  --r-card:16px;
  --r-media:20px;
  --sh-1:0 1px 2px rgba(16,32,64,.06);
  --sh-2:0 8px 24px rgba(16,32,64,.08);
  --sh-3:0 14px 34px rgba(16,32,64,.14);
  --ease:200ms ease;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:2px}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:600;line-height:1.3}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
svg{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.grid-container{max-width:var(--maxw);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-x>.cell{padding-left:0;padding-right:0}
.row-gap{margin-top:8px}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--dark);
  box-shadow:0 6px 20px rgba(6,14,28,.28);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--neon));
}
.nav-shell{display:flex;align-items:center;gap:24px;height:64px;position:relative}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none!important;flex:0 0 auto}
.logo-mark{
  width:26px;height:26px;border-radius:8px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;flex:0 0 26px;
}
.logo-mark svg{width:16px;height:16px;stroke-width:1.9}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text .lt-top{font-size:11px;color:#8FA3C4;letter-spacing:.08em}
.logo-text .lt-main{font-size:15px;font-weight:600;color:#fff;letter-spacing:.01em}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0;padding:0;flex:1 1 auto}
.nav-menu li{list-style:none}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 12px;border-radius:8px;
  color:#C7D2E4;font-size:15px;position:relative;text-decoration:none!important;transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--neon);opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease);
}
.nav-link.is-active{color:#fff;text-shadow:0 0 12px rgba(22,224,196,.5)}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-icon{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:transparent;color:#C7D2E4;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all var(--ease);
}
.btn-icon:hover{color:#fff;border-color:rgba(22,224,196,.6);background:rgba(22,224,196,.08)}
.btn-icon svg{width:18px;height:18px}
.nav-toggle{display:none;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav-toggle span{width:18px;height:2px;border-radius:2px;background:#C7D2E4;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.search-pop{
  position:absolute;top:calc(100% + 10px);right:24px;width:360px;z-index:90;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-3);padding:16px;
}
.search-pop[hidden]{display:none}
.search-pop-inner{display:flex;gap:10px}
.search-pop input{
  flex:1 1 auto;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--t1);background:#fff;margin:0;
}
.search-pop input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,224,196,.28)}
.search-tip{margin:10px 0 0;font-size:12.5px;color:var(--t3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;
  text-decoration:none!important;white-space:nowrap;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn svg{width:16px;height:16px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;color:var(--t1);border-color:var(--line)}
.btn-secondary:hover{background:var(--brand-soft);border-color:#BFD4F7;color:var(--brand-dark);transform:translateY(-2px)}
.btn-neon{background:var(--neon);color:#06251F;border-color:var(--neon);font-weight:600}
.btn-neon:hover{background:#fff;color:var(--brand-dark);border-color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(22,224,196,.3)}
.btn-ghost-neon{background:transparent;color:var(--neon);border-color:var(--neon)}
.btn-ghost-neon:hover{background:rgba(22,224,196,.14);color:#fff;transform:translateY(-2px)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head h2{font-size:30px;line-height:1.3}
.sec-head p{margin:12px 0 0;font-size:15px;color:var(--t2);max-width:720px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);margin-bottom:14px}
.kicker::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--neon)}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand);flex:0 0 auto;padding-bottom:4px}
.more-link svg{width:14px;height:14px}
.more-link:hover{gap:10px}

/* ---------- 深色页面头部 ---------- */
.page-hero{position:relative;background:var(--dark);color:var(--on-dark);padding:52px 0 72px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.24;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--neon));
}
.page-hero .grid-container{position:relative;z-index:1}
.crumb{font-size:13px;color:#9FB0CC;margin-bottom:22px}
.crumb a{color:#C7D2E4;text-decoration:none}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:2px}
.crumb .sep{margin:0 8px;color:#6E7E99}
.crumb .current{color:var(--on-dark)}
.page-hero h1{font-size:40px;line-height:1.25;color:#fff;max-width:900px}
.page-hero .lead{margin:20px 0 0;font-size:17px;line-height:1.75;color:#B9C6DC;max-width:800px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  font-size:13px;background:rgba(22,224,196,.1);border:1px solid rgba(22,224,196,.34);color:var(--neon);
}
.chip svg{width:14px;height:14px}
.page-hero .btn-row{margin-top:32px}

/* ---------- 清单卡 ---------- */
.check-card{
  display:flex;gap:16px;height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFDEF8}
.check-icon{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;
}
.check-icon svg{width:20px;height:20px;stroke-width:2}
.check-card h3{font-size:17px;margin-bottom:8px}
.check-card p{margin:0;font-size:15px;line-height:1.7;color:var(--t2)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:920px;margin:0 auto}
.tl-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-item:not(:last-child)::before{
  content:"";position:absolute;left:31px;top:64px;bottom:0;width:2px;
  background:linear-gradient(180deg,#C9DBFA,var(--line));
}
.tl-dot{
  width:64px;height:64px;border-radius:50%;background:#fff;border:2px solid var(--brand);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;box-shadow:var(--sh-1);position:relative;z-index:1;
}
.tl-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFDEF8}
.tl-body h3{font-size:20px;margin-bottom:10px}
.tl-body p{margin:0;font-size:15px;line-height:1.8;color:var(--t2)}
.tl-tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12.5px;margin-bottom:14px;
}
.tl-thumb{margin-top:18px;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.tl-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 图文 + 说明列表 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);background:#fff}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split h2{font-size:30px;line-height:1.3}
.split p{font-size:16px;line-height:1.8;color:var(--t2)}
.split-points{margin-top:20px;display:grid;gap:12px}
.split-points li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--t2)}
.split-points svg{width:18px;height:18px;color:var(--brand);flex:0 0 18px;margin-top:4px}
.note-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.note-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:22px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);
}
.note-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.ni-icon{
  flex:0 0 38px;width:38px;height:38px;border-radius:11px;background:#F1F6FE;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
}
.ni-icon svg{width:18px;height:18px}
.note-item h4{font-size:16px;margin-bottom:6px}
.note-item p{margin:0;font-size:14.5px;line-height:1.7;color:var(--t2)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;
  overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{border-color:#CFDEF8;box-shadow:var(--sh-1)}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--neon),var(--sh-1);border-color:#CFDEF8}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;padding:20px 60px 20px 24px;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before,
.faq-item summary::after{
  content:"";position:absolute;top:50%;right:24px;background:var(--brand);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-item summary::before{width:14px;height:2px;transform:translateY(-1px)}
.faq-item summary::after{width:2px;height:14px;right:30px;transform:translateY(-7px)}
.faq-item[open] summary::after{transform:translateY(-7px) rotate(90deg);opacity:0}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--t2)}
.faq-body p:last-child{margin-bottom:0}

/* ---------- 暗色 CTA ---------- */
.cta-wrap{padding:0 0 88px}
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-media);
  padding:52px;color:var(--on-dark);box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--neon));
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,196,.22),rgba(22,224,196,0) 70%);
}
.cta-band h2{font-size:30px;color:#fff;line-height:1.3}
.cta-band p{margin:14px 0 0;font-size:16px;color:#B9C6DC;max-width:640px}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center}
.cta-band .btn-row{justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A9B6CC;padding-top:72px;position:relative}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--neon));
}
.footer-main{padding-bottom:48px}
.footer-brand p{margin:16px 0 0;font-size:14px;line-height:1.8;color:#A9B6CC;max-width:320px}
.footer-col h4{font-size:14px;color:#EAF0FA;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:#A9B6CC;text-decoration:none}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:2px}
.footer-contact{font-size:14px;line-height:2;color:#A9B6CC}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 28px;font-size:13px;color:#8A94A6;
}
.to-top{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--neon);background:transparent;
  color:var(--neon);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all var(--ease);
}
.to-top:hover{background:rgba(22,224,196,.14);color:#fff}
.to-top svg{width:18px;height:18px}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:64px 0}
  .page-hero{padding:40px 0 56px}
  .page-hero h1{font-size:32px}
  .sec-head h2,.split h2,.cta-band h2{font-size:26px}
  .nav-toggle{display:inline-flex}
  .nav-menu{
    display:none;position:absolute;top:calc(100% + 1px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;background:var(--dark-2);
    padding:8px 0;box-shadow:var(--sh-3);border-bottom:1px solid rgba(255,255,255,.08);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu li{border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-menu li:last-child{border-bottom:0}
  .nav-link{height:auto;min-height:44px;padding:13px 24px;border-radius:0;width:100%}
  .nav-link::after{bottom:8px;left:24px;right:auto;width:18px}
  .nav-link:hover{background:rgba(255,255,255,.06)}
  .search-pop{right:16px;left:16px;width:auto}
  .split{grid-template-columns:1fr;gap:32px}
  .note-list{grid-template-columns:1fr}
  .cta-band{padding:40px 32px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .cta-band .btn-row{justify-content:flex-start}
}
@media (max-width:767px){
  .grid-container{padding-left:16px;padding-right:16px}
  .site-header .nav-shell{gap:12px}
  .logo-text .lt-top{font-size:10px}
  .logo-text .lt-main{font-size:12.5px}
  .logo-mark{width:24px;height:24px;flex:0 0 24px}
  .nav-search{display:none}
  .section{padding:52px 0}
  .section-tight{padding:44px 0}
  .page-hero{padding:32px 0 48px}
  .page-hero h1{font-size:28px}
  .page-hero .lead{font-size:15.5px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .sec-head h2,.split h2,.cta-band h2{font-size:23px}
  .timeline{padding-left:0}
  .tl-item{grid-template-columns:44px 1fr;gap:14px;padding-bottom:26px}
  .tl-dot{width:44px;height:44px;font-size:15px;border-width:2px}
  .tl-item:not(:last-child)::before{left:21px;top:44px}
  .tl-body{padding:20px}
  .tl-body h3{font-size:17px}
  .btn-row{width:100%}
  .btn-row .btn{flex:1 1 100%}
  .cta-band{padding:32px 22px;border-radius:16px}
  .cta-wrap{padding:0 0 64px}
  .footer-bottom{justify-content:flex-start;gap:10px}
  .check-card{padding:22px}
  .note-item{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}