/* roulang page: index */
:root{
  --primary:#0E7490;
  --primary-dark:#0B5566;
  --accent:#F26522;
  --accent-dark:#DB5518;
  --success:#17A67A;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --band:#EAF2F5;
  --line:#E1E9ED;
  --text:#131F27;
  --text-2:#4C5D69;
  --text-3:#7E8E99;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(11,55,70,.06);
  --sh-2:0 10px 28px rgba(11,55,70,.12);
  --sh-3:0 24px 64px rgba(11,55,70,.18);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Roboto","PingFang SC","Microsoft YaHei",sans-serif;
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.modal-open{overflow:hidden;}
h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;border:0;}
a{color:inherit;text-decoration:none;background:transparent;}
a:hover,a:focus{color:var(--primary);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
table{border-collapse:collapse;width:100%;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1248px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-y) 0;}
.section-tight{padding:64px 0;}
.section-band{background:var(--band);}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;letter-spacing:.2px;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary);}
.btn-outline:hover{background:rgba(14,116,144,.08);border-color:var(--primary-dark);color:var(--primary-dark);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:15px;font-weight:600;
  transition:color .2s ease;
}
.text-link .arrow{transition:transform .2s ease;display:inline-block;}
.text-link:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover .arrow{transform:translateX(2px);}
.link-arrow{color:var(--primary);font-weight:600;font-size:15px;}
.link-arrow:hover{text-decoration:underline;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;letter-spacing:.2px;
}
.badge-cyan{background:rgba(14,116,144,.1);color:var(--primary-dark);}
.badge-orange{background:rgba(242,101,34,.12);color:#B23F0C;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
  backdrop-filter:blur(8px);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:#fff;}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:20px;min-height:76px;
}
.nav-group{display:flex;align-items:center;gap:6px;}
.nav-group.right{justify-content:flex-end;}
.nav-group.left{border-right:0;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:8px;transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--primary);background:rgba(14,116,144,.06);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;
  height:2px;border-radius:2px;background:var(--primary);
}
.nav-divider{width:1px;height:28px;background:var(--line);margin:0 12px;}
.brand{display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1;padding:0 8px;}
.brand-main{font-size:19px;font-weight:700;letter-spacing:.5px;color:var(--primary-dark);}
.brand-sub{font-size:11px;letter-spacing:2px;color:var(--text-3);margin-top:3px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--primary-dark);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--primary-dark);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{
  display:none;position:fixed;inset:76px 0 0 0;background:#fff;z-index:880;
  padding:16px 24px 32px;overflow-y:auto;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;min-height:52px;font-size:16px;font-weight:500;
  color:var(--text-2);border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--primary);font-weight:600;}
.mobile-panel .btn{margin-top:20px;width:100%;}

/* ---------- Hero ---------- */
.hero{padding:64px 0 80px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:999px;background:rgba(14,116,144,.09);color:var(--primary-dark);
  font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;
  color:var(--text);margin-bottom:20px;
}
.hero-sub{font-size:17px;line-height:1.75;color:var(--text-2);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--text-2);font-size:13px;font-weight:500;
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  box-shadow:var(--sh-2);background:var(--band);display:block;
}
.float-card{
  position:absolute;left:-18px;bottom:26px;
  background:var(--primary-dark);color:#fff;border-radius:14px;
  padding:16px 22px;box-shadow:var(--sh-2);min-width:186px;
}
.float-card strong{display:block;font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--accent);line-height:1.1;}
.float-card span{display:block;font-size:12px;color:rgba(255,255,255,.78);margin-top:6px;letter-spacing:.3px;}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:44px;}
.sec-title{
  position:relative;padding-left:42px;
  font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.3px;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:28px;height:4px;border-radius:2px;background:var(--primary);
}
.sec-sub{font-size:15px;color:var(--text-3);max-width:620px;}

/* ---------- 痛点区 ---------- */
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px 32px;}
.pain-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFE0E7;}
.pain-card:nth-child(2),.pain-card:nth-child(4){margin-top:42px;}
.pain-q{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px;}
.pain-q .mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(242,101,34,.12);color:#B23F0C;font-weight:700;font-size:14px;line-height:1;
}
.pain-q h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);}
.pain-card p{font-size:15px;color:var(--text-2);line-height:1.7;padding-left:38px;}

/* ---------- 方案区 ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:28px;align-items:stretch;}
.sol-feature{
  grid-column:span 7;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.sol-feature:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.sol-feature img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;background:var(--band);}
.sol-feature-body{padding:28px;display:flex;flex-direction:column;flex:1;}
.sol-side{grid-column:span 5;display:grid;grid-template-rows:1fr 1fr;gap:28px;}
.sol-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.sol-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.sol-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--band);
  color:var(--primary-dark);font-family:var(--font-num);font-weight:700;font-size:14px;
  margin-bottom:16px;
}
.sol-card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.sol-card .desc{font-size:15px;color:var(--text-2);line-height:1.7;margin-bottom:16px;}
.sol-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.sol-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2);line-height:1.7;}
.sol-list li::before{
  content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:3px;
  background:rgba(23,166,122,.9);
}
.sol-card .text-link{margin-top:auto;}

/* ---------- 数据区 ---------- */
.data-section{background:var(--primary-dark);color:#fff;padding:var(--sec-y) 0;}
.data-section .sec-title{color:#fff;}
.data-section .sec-title::before{background:var(--accent);}
.data-section .sec-sub{color:rgba(255,255,255,.72);}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.data-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);padding:28px 24px;transition:background-color .25s ease,transform .25s ease;
}
.data-card:hover{background:rgba(255,255,255,.12);transform:translateY(-3px);}
.data-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.1;color:var(--accent);
  display:flex;align-items:baseline;gap:4px;
}
.data-num em{font-style:normal;font-size:16px;font-weight:600;color:rgba(255,255,255,.82);}
.data-card p{font-size:14px;color:rgba(255,255,255,.78);line-height:1.7;margin-top:10px;}
.data-foot{margin-top:28px;font-size:13px;color:rgba(255,255,255,.6);line-height:1.7;}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:22px;}
.news-card{
  display:grid;grid-template-columns:40% 1fr;min-height:196px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFE0E7;}
.news-thumb{display:block;overflow:hidden;background:var(--band);}
.news-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:22px 24px;display:flex;flex-direction:column;gap:10px;min-width:0;}
.news-title{font-size:17px;font-weight:600;line-height:1.5;}
.news-title a{color:var(--text);transition:color .2s ease;}
.news-title a:hover{color:var(--primary);}
.news-sum{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.news-meta .meta-link{margin-left:auto;color:var(--primary);font-weight:600;}
.news-side{display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:17px;font-weight:600;margin-bottom:12px;color:var(--primary-dark);}
.side-card p{font-size:14px;color:var(--text-2);line-height:1.7;margin-bottom:16px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--band);color:var(--primary-dark);font-size:13px;font-weight:500;
  transition:background-color .2s ease,color .2s ease;
}
.tag-cloud a:hover{background:var(--primary);color:#fff;}
.empty-state{
  background:var(--band);border:1px dashed #C7D8DF;border-radius:var(--r-card);
  padding:32px 24px;text-align:center;color:var(--text-2);
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 14px;border-radius:14px;background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:22px;
  box-shadow:var(--sh-1);
}
.empty-state p{font-size:15px;margin-bottom:10px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s ease;
}
.faq-item.is-open{box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s ease,background-color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--band);
  color:var(--primary-dark);display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:transform .2s ease,background-color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .2s ease;
  background:var(--bg);border-top:1px solid var(--line);
}
.faq-a p{padding:20px 24px;font-size:15px;color:var(--text-2);line-height:1.75;}

/* ---------- CTA 表单 ---------- */
.cta-panel{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--sh-2);overflow:hidden;
  display:grid;grid-template-columns:5fr 7fr;
}
.cta-copy{padding:44px;background:var(--band);display:flex;flex-direction:column;justify-content:center;}
.cta-copy h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.4;margin-bottom:16px;}
.cta-copy p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:22px;}
.cta-copy .btn{align-self:flex-start;}
.cta-form{padding:44px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-field{display:flex;flex-direction:column;margin-bottom:20px;}
.form-field label{font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:8px;}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;font-size:15px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.6;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,116,144,.12);
}
.form-field .err{font-size:12px;color:#D64545;margin-top:8px;display:none;}
.form-field.has-error input,.form-field.has-error select{border-color:#D64545;}
.form-field.has-error .err{display:block;}
.privacy-note{margin-top:10px;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.6;}
.check-line input{width:16px;height:16px;margin-top:3px;accent-color:var(--primary);flex:0 0 auto;}
.privacy-note .hint{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:8px;}

/* ---------- 隐私条 ---------- */
.privacy-bar{
  border-top:1px solid var(--line);background:#fff;
}
.privacy-bar .container{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  padding-top:20px;padding-bottom:20px;
}
.privacy-bar p{font-size:13px;color:var(--text-3);line-height:1.7;}

/* ---------- 弹层 ---------- */
.modal-overlay{
  position:fixed;inset:0;z-index:1200;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(9,32,42,.5);backdrop-filter:blur(4px);
}
.modal-overlay.is-open{display:flex;}
.modal-box{
  width:560px;max-width:100%;max-height:90vh;overflow-y:auto;
  background:#fff;border-radius:16px;box-shadow:var(--sh-3);
  padding:32px;position:relative;
}
.modal-box h2{font-size:22px;font-weight:700;margin-bottom:8px;}
.modal-box .modal-sub{font-size:14px;color:var(--text-2);line-height:1.7;margin-bottom:22px;}
.modal-close{
  position:absolute;top:16px;right:16px;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:22px;line-height:1;
  color:var(--text-2);background:var(--bg);transition:background-color .2s ease,color .2s ease;
}
.modal-close:hover{background:var(--band);color:var(--primary-dark);}
.form-success{
  display:none;background:rgba(23,166,122,.1);border:1px solid rgba(23,166,122,.35);
  color:#0F7A5A;border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:18px;
}
.form-success.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{display:inline-flex;align-items:flex-start;margin-bottom:16px;}
.footer-brand .brand-main{font-size:18px;}
.footer-brand .brand-sub{letter-spacing:1.5px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:340px;}
.site-footer h4{
  font-size:15px;font-weight:700;color:var(--primary-dark);margin-bottom:18px;letter-spacing:.3px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-links a:hover{color:var(--primary);}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-2);line-height:1.7;}
.copyright{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0 26px;text-align:center;
}
.copyright p{font-size:13px;color:var(--text-3);line-height:1.8;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sec-y:68px;}
  .nav-inner{grid-template-columns:auto 1fr auto;min-height:68px;gap:12px;}
  .nav-group.left,.nav-group.right{display:none;}
  .brand{align-items:flex-start;justify-self:start;}
  .nav-toggle{display:inline-flex;}
  .mobile-panel{inset:68px 0 0 0;}
  .hero{padding:44px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:2;}
  .float-card{left:16px;bottom:16px;}
  .solution-grid{grid-template-columns:1fr;}
  .sol-feature,.sol-side{grid-column:span 12;}
  .sol-side{grid-template-rows:none;grid-template-columns:1fr 1fr;}
  .data-grid{grid-template-columns:1fr 1fr;}
  .news-layout{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .pain-card:nth-child(2),.pain-card:nth-child(4){margin-top:0;}
}
@media (max-width:640px){
  :root{--sec-y:52px;}
  .container{padding:0 16px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .pain-grid{grid-template-columns:1fr;gap:18px;}
  .pain-card{padding:22px 18px;}
  .pain-card p{padding-left:0;}
  .sol-side{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:1fr;gap:16px;}
  .news-card{grid-template-columns:1fr;min-height:0;}
  .news-thumb img{aspect-ratio:16/10;height:auto;}
  .news-body{padding:18px;}
  .cta-copy,.cta-form{padding:26px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sec-head{margin-bottom:30px;}
  .sec-title{padding-left:34px;}
  .sec-title::before{width:22px;}
  .btn{height:46px;padding:0 22px;}
  .modal-overlay{padding:0;align-items:flex-end;backdrop-filter:none;}
  .modal-box{
    width:100%;max-height:100vh;height:100%;border-radius:0;padding:28px 20px;
    display:flex;flex-direction:column;justify-content:flex-start;
  }
  .float-card{left:12px;bottom:12px;padding:12px 16px;min-width:150px;}
  .float-card strong{font-size:22px;}
}

/* roulang page: article */
:root{
  --primary:#0E7490;
  --primary-dark:#0B5566;
  --accent:#F26522;
  --accent-dark:#D5541A;
  --success:#17A67A;
  --page:#F5F8FA;
  --card:#FFFFFF;
  --band:#EAF2F5;
  --line:#E1E9ED;
  --text:#131F27;
  --text-2:#4C5D69;
  --text-3:#7E8E99;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(11,55,70,.06);
  --shadow-2:0 10px 28px rgba(11,55,70,.12);
  --shadow-3:0 24px 64px rgba(11,55,70,.18);
  --danger:#D64545;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}
button{font-family:var(--font-cn);cursor:pointer;}
table{border-collapse:collapse;width:100%;}
.num{font-variant-numeric:tabular-nums;font-family:"Inter","Roboto",var(--font-cn);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* 通用按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);text-decoration:none;}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:rgba(14,116,144,.08);border-color:var(--primary-dark);color:var(--primary-dark);text-decoration:none;}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.link-arrow{color:var(--primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover i{transform:translateX(2px);}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.badge-teal{background:rgba(14,116,144,.1);color:var(--primary-dark);}
.badge-orange{background:rgba(242,101,34,.12);color:var(--accent-dark);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--band);color:var(--primary-dark);font-size:13px;font-weight:500;
}
.tag-cloud a:hover{background:rgba(14,116,144,.16);text-decoration:none;}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:78px;gap:16px;}
.nav-group{display:flex;align-items:center;gap:4px;}
.nav-group.left{justify-self:start;}
.nav-group.right{justify-self:end;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:8px;
  color:var(--text-2);font-size:15px;font-weight:500;position:relative;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left center;transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary);background:rgba(14,116,144,.06);text-decoration:none;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:0 30px;line-height:1.1;border-left:1px solid var(--line);border-right:1px solid var(--line);
  max-height:44px;overflow:hidden;
}
.brand-main{font-size:19px;font-weight:700;color:var(--primary-dark);letter-spacing:.5px;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:2px;margin-top:2px;}
.brand:hover{text-decoration:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{width:18px;height:2px;background:var(--primary-dark);position:relative;border-radius:2px;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;transition:transform .22s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{
  display:none;flex-direction:column;gap:2px;padding:12px 0 22px;
  border-top:1px solid var(--line);background:#fff;
}
.nav-drawer.is-open{display:flex;}
.nav-drawer a{
  display:flex;align-items:center;min-height:52px;padding:0 4px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.nav-drawer a:hover{color:var(--primary);text-decoration:none;}
.nav-drawer .drawer-cta{margin-top:16px;border-bottom:none;}
.nav-drawer .drawer-cta .btn{width:100%;}

/* 面包屑 */
.breadcrumb-bar{padding:22px 0 0;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--text-3);min-width:0;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--primary);text-decoration:none;}
.crumbs .sep{color:var(--text-3);}
.crumbs .current{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%;}

/* 文章主区 */
.article-section{padding:28px 0 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start;}
.article-layout .columns{width:auto;padding-left:0;padding-right:0;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:36px 40px;
}
.article-head{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:28px;}
.article-head h1{
  font-size:clamp(26px,3.6vw,38px);line-height:1.32;letter-spacing:-.4px;margin-bottom:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--text-2);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--primary);font-size:13px;}

/* 正文排版 */
.article-body{max-width:880px;color:var(--text);font-size:16px;line-height:1.8;}
.article-body h2{
  font-size:clamp(21px,2.6vw,27px);line-height:1.4;margin:40px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.35em;width:4px;height:1em;border-radius:3px;background:var(--primary);
}
.article-body h3{font-size:19px;line-height:1.45;margin:28px 0 12px;color:var(--primary-dark);}
.article-body h4{font-size:17px;margin:22px 0 10px;}
.article-body p{margin:0 0 1.2em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body ul li::marker{color:var(--primary);}
.article-body ol li::marker{color:var(--primary);font-weight:600;}
.article-body img{border-radius:var(--radius-img);margin:22px 0 10px;box-shadow:var(--shadow-1);}
.article-body figcaption{
  font-size:13px;color:var(--text-3);text-align:center;margin-bottom:22px;line-height:1.6;
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--band);border-left:4px solid var(--primary);
  border-radius:0 10px 10px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  margin:22px 0;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:15px;
}
.article-body thead th{background:var(--band);color:var(--primary-dark);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFCFD;}
.article-body code{
  background:var(--band);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--primary-dark);
}
.article-body a{text-decoration:underline;text-decoration-color:rgba(14,116,144,.35);}
.article-body a:hover{text-decoration-color:var(--primary-dark);}

/* 空态 */
.empty-state{
  background:var(--band);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:34px 24px;text-align:center;color:var(--text-2);max-height:220px;
}
.empty-state i{font-size:26px;color:var(--primary);margin-bottom:10px;display:block;}
.empty-state p{margin:0 0 8px;font-size:15px;}

/* 文末 */
.article-foot{margin-top:34px;padding-top:24px;border-top:1px solid var(--line);}
.article-foot h3{font-size:16px;margin-bottom:12px;color:var(--primary-dark);}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}

/* 侧栏 */
.side-col{display:flex;flex-direction:column;gap:24px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;
}
.side-card h3{font-size:17px;margin-bottom:14px;color:var(--primary-dark);}
.side-card h3::after{
  content:"";display:block;width:32px;height:3px;border-radius:3px;background:var(--primary);margin-top:10px;
}
.toc-list{list-style:none;margin:0;padding:0;}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;
  font-size:15px;color:var(--text-2);
}
.toc-list a:hover{background:var(--band);color:var(--primary-dark);text-decoration:none;}
.toc-list i{font-size:7px;color:var(--primary);}
.side-consult{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;}
.side-consult h3{color:#fff;}
.side-consult h3::after{background:var(--accent);}
.side-consult p{color:rgba(255,255,255,.82);font-size:14px;line-height:1.7;}
.side-consult .btn{width:100%;margin-top:6px;}

/* 相关推荐 */
.recommend-section{padding:72px 0 0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,3vw,30px);line-height:1.35;}
.section-head h2::after{
  content:"";display:block;width:32px;height:3px;border-radius:3px;background:var(--primary);margin-top:12px;
}
.section-head p{color:var(--text-2);font-size:15px;margin:14px 0 0;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.card-media{width:100%;aspect-ratio:16/10;background:var(--band);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;}
.card-body h3 a{color:var(--text);}
.card-body h3 a:hover{color:var(--primary);text-decoration:none;}
.card-body p{font-size:14px;color:var(--text-2);margin:0;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}

/* FAQ */
.faq-section{padding:72px 0 0;}
.faq-list{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--card);box-shadow:var(--shadow-1);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:#fff;border:none;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{background:#FAFCFD;}
.faq-q .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--primary);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;transition:transform .2s ease,background-color .2s ease;
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);background:rgba(14,116,144,.1);}
.faq-a{display:none;padding:0 24px 22px;background:var(--page);border-top:1px solid var(--line);}
.faq-a p{margin:16px 0 0;font-size:15px;color:var(--text-2);}
.faq-item.is-open .faq-a{display:block;animation:fadeIn .2s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* CTA 区块 */
.cta-section{padding:72px 0 88px;}
.cta-panel{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F8FA 100%);
  border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-1);
  padding:44px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:start;
}
.cta-copy h2{font-size:clamp(22px,3vw,30px);line-height:1.35;}
.cta-copy h2::after{content:"";display:block;width:32px;height:3px;border-radius:3px;background:var(--accent);margin-top:12px;}
.cta-copy p{color:var(--text-2);margin:18px 0 20px;}
.cta-points{list-style:none;padding:0;margin:0;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);margin-bottom:10px;}
.cta-points i{color:var(--success);margin-top:5px;font-size:13px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-2);font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;font-family:var(--font-cn);font-size:15px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:96px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(14,116,144,.12);
}
.field .err{font-size:12px;color:var(--danger);display:none;}
.field.has-error .err{display:block;}
.field.has-error input,.field.has-error select{border-color:var(--danger);}
.privacy-note{margin-top:12px;font-size:12.5px;color:var(--text-3);line-height:1.65;}
.privacy-note label{display:flex;gap:8px;align-items:flex-start;cursor:pointer;}
.privacy-note input{margin-top:4px;accent-color:var(--primary);}
.form-actions{margin-top:22px;}

/* 页脚 */
.site-footer{margin-top:24px;background:#FBFDFE;border-top:1px solid var(--line);padding:64px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:36px;}
.footer-brand .brand{border:none;padding:0;align-items:flex-start;max-height:none;}
.footer-brand p{font-size:14px;color:var(--text-2);margin:16px 0 0;line-height:1.75;}
.site-footer h4{font-size:15px;color:var(--primary-dark);margin-bottom:16px;}
.footer-links,.footer-info{display:flex;flex-direction:column;gap:10px;}
.footer-links a,.footer-info span{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);text-decoration:none;}
.copyright{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);text-align:center;}
.copyright p{font-size:13px;color:var(--text-3);margin:0;}

/* 响应式 */
@media screen and (max-width:1023px){
  .nav-inner{min-height:70px;grid-template-columns:auto 1fr auto;}
  .nav-group{display:none;}
  .brand{grid-column:2;justify-self:center;padding:0 14px;border:none;}
  .nav-toggle{display:inline-flex;grid-column:3;justify-self:end;}
  .article-layout{grid-template-columns:1fr;}
  .side-col{order:2;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-panel{grid-template-columns:1fr;padding:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-card{padding:30px 26px;}
  .recommend-section,.faq-section,.cta-section{padding-top:56px;}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  .brand-main{font-size:17px;}
  .brand-sub{font-size:10px;letter-spacing:1.4px;}
  .crumbs{font-size:14px;}
  .crumbs .current{max-width:46%;}
  .article-card{padding:24px 18px;}
  .article-body{font-size:16px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-panel{padding:26px 18px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .btn{height:46px;padding:0 22px;}
  .side-card{padding:20px 18px;}
}

/* roulang page: category1 */
:root{
  --primary:#0E7490;
  --primary-dark:#0B5566;
  --accent:#F26522;
  --accent-dark:#D9571B;
  --success:#17A67A;
  --danger:#D64545;
  --bg:#F5F8FA;
  --band:#EAF2F5;
  --card:#FFFFFF;
  --line:#E1E9ED;
  --text:#131F27;
  --text-2:#4C5D69;
  --text-3:#7E8E99;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(11,55,70,.06);
  --sh-2:0 10px 28px rgba(11,55,70,.12);
  --sh-3:0 24px 64px rgba(11,55,70,.18);
  --sec-y:96px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Roboto","PingFang SC",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:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-family:var(--font-cn);color:var(--text);font-weight:700;}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.25;letter-spacing:-.5px;}
h2{font-size:clamp(22px,3vw,32px);line-height:1.35;}
h3{font-size:19px;line-height:1.45;font-weight:600;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
time,.stat-num,.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--sec-y) 0;}
.section--white{background:var(--card);}
.section--band{background:var(--band);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-title{position:relative;}
.sec-title::after{content:"";display:block;width:32px;height:4px;border-radius:2px;background:var(--primary);margin-top:14px;}
.sec-desc{margin-top:16px;color:var(--text-2);font-size:16px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(11,55,70,.02);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:72px;
}
.nav-group{display:flex;align-items:center;gap:4px;flex:1 1 0;min-width:0;}
.nav-group.right{justify-content:flex-end;}
.nav-group.left{padding-right:20px;border-right:1px solid var(--line);}
.nav-group.right{padding-left:20px;border-left:1px solid var(--line);}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text-2);
  white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:rgba(14,116,144,.07);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;background:var(--primary);
}
.brand{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-decoration:none;flex:0 0 auto;max-height:44px;
}
.brand-main{font-size:20px;font-weight:700;color:var(--primary-dark);letter-spacing:.6px;line-height:1.15;}
.brand-sub{font-size:10px;color:var(--text-3);letter-spacing:3px;line-height:1.4;}
.brand:hover .brand-main{color:var(--primary);}
.nav-toggle{
  display:none;
  width:44px;height:44px;flex:0 0 44px;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary-dark);
  content:"";transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:translateX(-50%) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:translateX(-50%) rotate(-45deg);}
.mobile-panel{
  position:fixed;left:0;right:0;top:72px;bottom:0;
  background:#fff;z-index:190;
  padding:16px 24px 40px;
  overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 4px;
  font-size:16px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:hover{color:var(--primary);}
.mobile-panel .btn{margin-top:20px;width:100%;}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  text-decoration:none;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:rgba(14,116,144,.08);border-color:var(--primary-dark);color:var(--primary-dark);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:9px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
}
.link-more::after{content:"→";transition:transform .2s ease;}
.link-more:hover::after{transform:translateX(2px);}
.link-more:hover{color:var(--primary-dark);text-decoration:underline;}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(14,116,144,.1);color:var(--primary-dark);
}
.badge--accent{background:rgba(242,101,34,.12);color:#B8440F;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- breadcrumb ---------- */
.crumb-wrap{border-bottom:1px solid var(--line);background:#fff;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--text-3);padding:16px 0;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw;}

/* ---------- hero ---------- */
.hero-simple{background:var(--band);padding:48px 0 56px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
  background:#fff;color:var(--primary);border:1px solid rgba(14,116,144,.18);
  font-size:13px;font-weight:600;
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:26px;}
.trust-row li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2);}
.trust-row li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:50%;background:var(--success);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--sh-1);}
.hero-media{position:relative;}

/* ---------- feature rows ---------- */
.feature-row{margin-bottom:80px;}
.feature-row:last-child{margin-bottom:0;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  background:var(--band);
}
.feature-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:16px;
  background:rgba(14,116,144,.1);color:var(--primary-dark);
  font-family:var(--font-num);font-size:14px;font-weight:700;
}
.feature-body h3{margin-bottom:14px;}
.feature-body p{color:var(--text-2);font-size:16px;}
.feature-body .badge-row{margin-top:20px;}

/* ---------- list block ---------- */
.split-block{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:16px;
  color:var(--text-2);font-size:15.5px;line-height:1.7;
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"";position:absolute;left:0;top:6px;
  width:16px;height:16px;border-radius:50%;
  background:rgba(23,166,122,.14);
  border:1.5px solid var(--success);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:11px;
  width:6px;height:3px;border-left:1.5px solid var(--success);border-bottom:1.5px solid var(--success);
  transform:rotate(-45deg);
}
.check-list strong{color:var(--text);font-weight:600;}

/* ---------- stat band ---------- */
.stat-band{
  margin-top:56px;
  background:var(--primary-dark);
  border-radius:16px;
  padding:40px 40px 32px;
  color:#fff;
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
}
.stat-item .stat-num{
  display:block;
  font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.1;
  color:var(--accent);
}
.stat-item .stat-unit{font-size:14px;font-weight:600;color:#fff;margin-left:4px;}
.stat-item .stat-label{display:block;margin-top:10px;font-size:14px;color:rgba(255,255,255,.78);line-height:1.6;}
.stat-note{margin-top:22px;font-size:13px;color:rgba(255,255,255,.6);grid-column:1/-1;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-img);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:rgba(14,116,144,.35);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.55;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;flex:0 0 20px;width:20px;height:20px;
  transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--primary);border-radius:2px;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;background:var(--bg);border-top:1px solid var(--line);}
.faq-a p{padding:16px 22px;color:var(--text-2);font-size:15px;line-height:1.75;}

/* ---------- CTA / form ---------- */
.cta-section{background:var(--band);}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.cta-copy h2::after{content:"";display:block;width:32px;height:4px;border-radius:2px;background:var(--primary);margin-top:14px;}
.cta-copy p{margin-top:18px;color:var(--text-2);}
.cta-points{margin-top:26px;}
.cta-points li{position:relative;padding-left:18px;margin-bottom:12px;font-size:15px;color:var(--text-2);}
.cta-points li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--accent);}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-field{display:flex;flex-direction:column;}
.form-field.full{grid-column:1/-1;}
.form-field label{font-size:13px;color:var(--text-2);margin-bottom:6px;font-weight:500;}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  font-size:15px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,116,144,.12);
}
.form-actions{margin-top:24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.privacy-note{
  display:flex;align-items:flex-start;gap:10px;
  margin-top:14px;font-size:13px;line-height:1.7;color:var(--text-2);
}
.privacy-note input[type="checkbox"]{
  width:18px;height:18px;flex:0 0 18px;margin-top:3px;
  accent-color:var(--primary);cursor:pointer;
}

/* ---------- cross links ---------- */
.cross-links{display:flex;flex-wrap:wrap;gap:14px;}
.cross-link{
  display:flex;flex-direction:column;gap:6px;
  min-width:220px;flex:1 1 220px;
  padding:22px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cross-link:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,116,144,.3);}
.cross-link .cross-title{font-size:16px;font-weight:600;color:var(--text);}
.cross-link .cross-desc{font-size:13px;color:var(--text-3);}
.cross-link:hover .cross-title{color:var(--primary);}

/* ---------- footer ---------- */
.site-footer{
  background:#fff;border-top:1px solid var(--line);
  padding:64px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.8;max-width:320px;}
.footer-brand .brand{align-items:flex-start;}
.site-footer h4{color:var(--primary-dark);font-size:15px;margin-bottom:16px;font-weight:700;}
.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(--primary);text-decoration:underline;}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.copyright{
  margin-top:56px;border-top:1px solid var(--line);
  padding:20px 0;text-align:center;
}
.copyright p{font-size:13px;color:var(--text-3);margin:0;}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  :root{--sec-y:64px;}
  .nav-group{display:none;}
  .nav-toggle{display:block;}
  .nav-inner{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:2;}
  .hero-simple{padding:36px 0 44px;}
  .split-block{grid-template-columns:1fr;gap:32px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-band{grid-template-columns:1fr 1fr;padding:32px 28px;}
  .feature-row{margin-bottom:56px;}
  .feature-row.is-reverse .feature-media{order:0;}
}
@media (max-width:640px){
  :root{--sec-y:48px;}
  .container{padding:0 16px;}
  .hero-lead{font-size:16px;}
  .btn{height:46px;padding:0 22px;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:10px 18px;}
  .stat-band{grid-template-columns:1fr;gap:22px;padding:26px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .mobile-panel{top:72px;padding:12px 16px 32px;}
  .cross-links{flex-direction:column;}
  .cross-link{min-width:0;}
  .breadcrumb .current{max-width:52vw;}
}

/* roulang page: category2 */
:root{
  --primary:#0E7490;
  --primary-deep:#0B5566;
  --accent:#F26522;
  --accent-deep:#D9551A;
  --success:#17A67A;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --band:#EAF2F5;
  --border:#E1E9ED;
  --text:#131F27;
  --text-2:#4C5D69;
  --text-3:#7E8E99;
  --white:#FFFFFF;
  --danger:#D64545;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(11,55,70,.06);
  --shadow-2:0 10px 28px rgba(11,55,70,.12);
  --shadow-3:0 24px 64px rgba(11,55,70,.18);
  --gap-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--primary-deep)}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:"Inter","Roboto",sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,248,250,.94);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--border);
  box-shadow:var(--shadow-1);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:74px;
}
.nav-group{display:flex;align-items:center;gap:4px}
.nav-group.left{padding-right:18px;border-right:1px solid var(--border)}
.nav-group.right{padding-left:18px;border-left:1px solid var(--border);gap:10px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;font-size:15px;font-weight:500;color:var(--text-2);
}
.nav-link:hover{color:var(--primary)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;
  border-radius:2px;background:var(--primary);
}
.brand{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  line-height:1.05;text-align:center;height:44px;
}
.brand-main{font-size:22px;font-weight:700;letter-spacing:-.5px;color:var(--primary-deep)}
.brand-sub{font-size:11px;letter-spacing:2.6px;color:var(--text-3);margin-top:3px}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--border);background:#fff;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;
  background:var(--primary-deep);transform:translateX(-50%);transition:.2s ease;
}
.nav-toggle span{top:21px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.mobile-panel{
  position:fixed;left:0;right:0;top:74px;bottom:0;z-index:70;
  background:#fff;padding:12px 24px 32px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:none}
.mobile-panel a{
  display:flex;align-items:center;min-height:52px;font-size:16px;
  color:var(--text);border-bottom:1px solid var(--border);
}
.mobile-panel a.is-active{color:var(--primary);font-weight:600}
.mobile-panel .btn{margin-top:20px;width:100%}

/* ---------- 按钮与徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-primary:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(14,116,144,.08);border-color:var(--primary-deep);color:var(--primary-deep)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-more span{transition:transform .2s ease}
.link-more:hover span{transform:translateX(2px)}
.link-more:hover{text-decoration:underline}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--band);color:var(--primary-deep);
}
.badge-accent{background:#FDECE3;color:var(--accent-deep)}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border)}
.breadcrumbs{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:15px;color:var(--text-3)}
.breadcrumbs a{color:var(--text-2)}
.breadcrumbs a:hover{color:var(--primary)}
.breadcrumbs .sep{color:#B9C6CE}
.breadcrumbs .current{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%}

/* ---------- Hero ---------- */
.hero{background:#fff;padding:48px 0 72px;border-bottom:1px solid var(--border)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;
  letter-spacing:-.5px;color:var(--text);margin-bottom:16px;
}
.hero-sub{font-size:18px;line-height:1.7;color:var(--text-2);margin-bottom:18px}
.hero-lead{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:24px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--band);color:var(--primary-deep);font-size:13px;font-weight:500;
}
.hero-media{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-1)}
.hero-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 通用板块 ---------- */
.section{padding:var(--gap-section) 0}
.section-band{background:var(--band)}
.section-white{background:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  position:relative;font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.35;
  color:var(--text);padding-left:18px;margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:32px;
  border-radius:3px;background:var(--primary);
}
.section-head p{font-size:16px;color:var(--text-2)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:880px}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;background:var(--border);
}
.timeline-item{position:relative;padding:0 0 40px 78px}
.timeline-item:last-child{padding-bottom:0}
.timeline-index{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--primary);color:var(--primary-deep);
  font-family:"Inter","Roboto",sans-serif;font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;
}
.timeline-item:first-child .timeline-index{background:var(--primary);color:#fff}
.timeline-body h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:8px;color:var(--text)}
.timeline-body p{font-size:15px;line-height:1.8;color:var(--text-2);max-width:720px}
.timeline-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.timeline-meta span{
  font-size:13px;color:var(--text-3);background:#fff;border:1px solid var(--border);
  border-radius:999px;padding:4px 12px;
}

/* ---------- 数据小条 ---------- */
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.metric-item{padding:28px 26px;border-right:1px solid var(--border)}
.metric-item:last-child{border-right:0}
.metric-value{
  font-family:"Inter","Roboto",sans-serif;font-variant-numeric:tabular-nums;
  font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.1;color:var(--primary-deep);
}
.metric-value em{font-style:normal;font-size:16px;font-weight:600;color:var(--accent);margin-left:4px}
.metric-label{font-size:14px;font-weight:600;color:var(--text);margin-top:10px}
.metric-note{font-size:13px;color:var(--text-3);margin-top:4px}
.metric-foot{font-size:13px;color:var(--text-3);margin-top:16px}

/* ---------- 数据表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-card);background:#fff;box-shadow:var(--shadow-1)}
.data-table{width:100%;border-collapse:collapse;min-width:640px}
.data-table caption{text-align:left;padding:18px 20px;font-size:14px;color:var(--text-3)}
.data-table th,.data-table td{padding:14px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--border)}
.data-table thead th{background:var(--band);color:var(--primary-deep);font-weight:600;font-size:14px}
.data-table tbody tr:nth-child(even){background:#FAFCFD}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table td:first-child{font-weight:600;color:var(--text)}
.data-table td{color:var(--text-2)}

/* ---------- 要点清单 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 32px;margin-top:8px}
.check-list li{position:relative;padding-left:28px;font-size:15px;line-height:1.8;color:var(--text-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;
  background:rgba(23,166,122,.14);border:1.5px solid var(--success);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:14px;width:6px;height:3px;border-left:2px solid var(--success);
  border-bottom:2px solid var(--success);transform:rotate(-45deg);
}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-item.is-open{border-color:#C7DCE2}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:60px;padding:18px 24px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);text-align:left;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;position:relative;width:22px;height:22px;border-radius:50%;
  border:1.5px solid var(--primary);transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;background:var(--bg);border-top:1px solid transparent}
.faq-item.is-open .faq-a{border-top-color:var(--border)}
.faq-a p{padding:18px 24px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA 表单 ---------- */
.cta-wrap{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-1);padding:44px;display:grid;grid-template-columns:5fr 7fr;gap:48px;
}
.cta-copy h2{
  position:relative;font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.35;
  color:var(--text);padding-left:18px;margin-bottom:16px;
}
.cta-copy h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:30px;border-radius:3px;background:var(--accent);
}
.cta-copy p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:20px}
.cta-points li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2);margin-bottom:10px}
.cta-points li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid var(--border);background:#fff;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,116,144,.12);
}
.form-error{font-size:13px;color:var(--danger);min-height:18px}
.form-action{margin-top:8px}
.privacy-note{margin-top:10px;font-size:12.5px;line-height:1.7;color:var(--text-3)}
.privacy-note label{display:flex;gap:8px;align-items:flex-start;cursor:pointer}
.privacy-note input{margin-top:3px}
.form-tip{margin-top:12px;font-size:13px;color:var(--success);min-height:18px}

/* ---------- 互链区 ---------- */
.cross-links{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cross-card{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cross-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C7DCE2}
.cross-card h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:8px}
.cross-card p{font-size:14px;line-height:1.8;color:var(--text-2);margin-bottom:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--band);border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-grid h4{font-size:15px;font-weight:700;color:var(--primary-deep);margin-bottom:16px}
.footer-brand .brand{align-items:flex-start;text-align:left;height:auto;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:340px}
.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(--primary)}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.copyright{
  margin-top:52px;padding:20px 0;border-top:1px solid var(--border);
  text-align:center;font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--gap-section:64px}
  .nav-group.left,.nav-group.right{display:none}
  .nav-toggle{display:block}
  .nav-inner{justify-content:center}
  .nav-toggle{position:absolute;right:16px;top:15px}
  .site-header .container{position:relative}
  .hero{padding:40px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2;max-width:560px}
  .metric-bar{grid-template-columns:repeat(2,1fr)}
  .metric-item:nth-child(2){border-right:0}
  .metric-item:nth-child(1),.metric-item:nth-child(2){border-bottom:1px solid var(--border)}
  .cta-wrap{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cross-links{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:639px){
  :root{--gap-section:48px}
  .container{padding:0 16px}
  .brand-main{font-size:20px}
  .brand-sub{letter-spacing:2px}
  .hero{padding:32px 0 48px}
  .hero-actions .btn{width:100%}
  .section-head{margin-bottom:30px}
  .timeline::before{left:19px}
  .timeline-item{padding:0 0 32px 62px}
  .timeline-index{width:40px;height:40px;font-size:14px}
  .metric-bar{grid-template-columns:1fr}
  .metric-item{border-right:0;border-bottom:1px solid var(--border);padding:22px 20px}
  .metric-item:last-child{border-bottom:0}
  .check-list{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-wrap{padding:24px 18px}
  .cross-links{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .breadcrumbs{font-size:14px}
  .breadcrumbs .current{max-width:48%}
}

/* roulang page: category3 */
:root{
  --primary:#0E7490;
  --primary-dark:#0B5566;
  --accent:#F26522;
  --success:#17A67A;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --band:#EAF2F5;
  --line:#E1E9ED;
  --ink:#131F27;
  --ink-2:#4C5D69;
  --ink-3:#7E8E99;
  --white:#FFFFFF;
  --danger:#D64545;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(11,55,70,.06);
  --sh-2:0 10px 28px rgba(11,55,70,.12);
  --sh-3:0 24px 64px rgba(11,55,70,.18);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Roboto",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--band{background:var(--band);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.35;position:relative;padding-left:18px;letter-spacing:-.3px;}
.section-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:26px;border-radius:3px;background:var(--primary);}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:74px;}
.nav-group{display:flex;align-items:center;gap:2px;}
.nav-group.left{border-right:1px solid var(--line);padding-right:14px;}
.nav-group.right{border-left:1px solid var(--line);padding-left:14px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 13px;border-radius:8px;font-size:15px;color:var(--ink-2);
}
.nav-link:hover{color:var(--primary);background:rgba(14,116,144,.07);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:6px;height:2px;border-radius:2px;background:var(--primary);
}
.brand{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  height:44px;line-height:1.15;text-decoration:none;
}
.brand-main{font-size:20px;font-weight:700;letter-spacing:-.4px;color:var(--ink);}
.brand-sub{font-size:11px;letter-spacing:2.4px;color:var(--primary);margin-top:2px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:74px;bottom:0;background:#fff;
  border-top:1px solid var(--line);overflow-y:auto;padding:12px 20px 40px;z-index:55;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;min-height:52px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--primary);font-weight:600;}
.mobile-panel .btn{margin-top:20px;justify-content:center;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#d9531a;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{
  background:transparent;color:var(--primary);border:1.5px solid var(--primary);
}
.btn-ghost:hover{background:rgba(14,116,144,.08);border-color:var(--primary-dark);color:var(--primary-dark);}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px;}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--primary);}
.link-arrow::after{content:"›";display:inline-block;transition:transform .18s ease;font-size:18px;line-height:1;}
.link-arrow:hover{text-decoration:underline;color:var(--primary-dark);}
.link-arrow:hover::after{transform:translateX(2px);}

/* ============ badges ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.3px;
}
.badge-cyan{background:rgba(14,116,144,.1);color:var(--primary-dark);}
.badge-orange{background:rgba(242,101,34,.12);color:#B4430F;}
.badge-green{background:rgba(23,166,122,.12);color:#0E7A58;}

/* ============ breadcrumb ============ */
.crumbs{padding:20px 0 4px;font-size:15px;color:var(--ink-3);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0;}
.crumbs li+li::before{content:"›";color:var(--ink-3);}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .current{color:var(--ink-3);max-width:60vw;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}

/* ============ hero ============ */
.hero{padding:36px 0 8px;}
.hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-tagline{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--primary-dark);background:rgba(14,116,144,.09);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;letter-spacing:.3px;
}
.hero h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:56ch;}
.hero-lead{
  margin-top:22px;padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-left:4px solid var(--primary);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--ink-2);font-size:15.5px;line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-trust span{
  font-size:13px;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:7px 14px;
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--sh-2);
}
.hero-visual::after{
  content:"";position:absolute;inset:auto -10px -10px auto;width:120px;height:120px;
  border-radius:16px;background:var(--band);z-index:-1;
}

/* ============ compare table ============ */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.compare-head{
  display:grid;grid-template-columns:1fr 1.4fr;background:var(--primary-dark);color:#fff;
}
.compare-head span{padding:18px 26px;font-size:14.5px;font-weight:600;letter-spacing:.4px;}
.compare-row{display:grid;grid-template-columns:1fr 1.4fr;border-top:1px solid var(--line);}
.compare-row:nth-child(odd){background:#FBFDFE;}
.compare-row:nth-child(even){background:var(--band);}
.compare-row dt{padding:22px 26px;font-size:16px;font-weight:600;color:var(--primary-dark);}
.compare-row dd{padding:22px 26px;font-size:15.5px;color:var(--ink-2);border-left:1px solid var(--line);}
.compare-row dd strong{color:var(--ink);font-weight:600;}

/* ============ gallery ============ */
.gallery{display:grid;grid-template-columns:1.55fr 1fr;grid-template-rows:repeat(2,1fr);gap:22px;}
.gallery figure{
  position:relative;margin:0;border-radius:var(--r-card);overflow:hidden;
  background:var(--band);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.gallery figure:first-child{grid-row:span 2;}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.gallery figure:hover img{transform:scale(1.03);}
.gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:28px 22px 16px;
  color:#fff;font-size:14px;line-height:1.6;
  background:linear-gradient(to top,rgba(11,55,70,.82),rgba(11,55,70,0));
}
.gallery figcaption strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px;}

/* ============ metrics ============ */
.metric-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px;}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);
}
.metric .value{font-size:clamp(26px,3.4vw,36px);font-weight:700;color:var(--accent);line-height:1.1;}
.metric .value small{font-size:15px;color:var(--ink-2);font-weight:600;margin-left:4px;}
.metric .label{margin-top:10px;font-size:14.5px;color:var(--ink-2);}
.metric-note{margin-top:18px;font-size:13px;color:var(--ink-3);}

/* ============ checklist ============ */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 30px;margin-top:8px;}
.checklist li{position:relative;padding-left:30px;font-size:15.5px;color:var(--ink-2);}
.checklist li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:9px;
  border-left:2.5px solid var(--success);border-bottom:2.5px solid var(--success);
  transform:rotate(-45deg);border-radius:1px;
}
.checklist li strong{color:var(--ink);font-weight:600;}

/* ============ faq ============ */
.faq-accordion{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--sh-1);}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-item:last-child{border-bottom:0;}
.faq-accordion .accordion-title{
  display:block;position:relative;padding:20px 58px 20px 26px;
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;border:0;line-height:1.6;
}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--primary);line-height:1;transition:transform .2s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.faq-accordion .accordion-title:hover{color:var(--primary);}
.faq-accordion .accordion-content{
  background:var(--bg);border-top:1px solid var(--line);padding:18px 26px 22px;color:var(--ink-2);font-size:15.5px;
}
.faq-accordion .accordion-content p+p{margin-top:10px;}

/* ============ form ============ */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:44px;box-shadow:var(--sh-1);
}
.cta-copy h2{font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.3px;}
.cta-copy p{margin-top:16px;color:var(--ink-2);font-size:15.5px;}
.cta-list{margin-top:24px;display:grid;gap:12px;}
.cta-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);}
.cta-list li::before{
  content:"";position:absolute;left:0;top:11px;width:14px;height:8px;
  border-left:2.5px solid var(--primary);border-bottom:2.5px solid var(--primary);transform:rotate(-45deg);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,116,144,.12);
}
.field .err{display:none;margin-top:12px;font-size:12.5px;color:var(--danger);}
.privacy-strip{margin-top:10px;font-size:12.5px;color:var(--ink-3);line-height:1.7;}
.privacy-strip label{display:flex;align-items:flex-start;gap:8px;cursor:pointer;}
.privacy-strip input[type="checkbox"]{width:16px;height:16px;margin-top:3px;accent-color:var(--primary);flex:0 0 auto;}

/* ============ cross links ============ */
.cross-links{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px;}
.cross-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cross-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,116,144,.35);}
.cross-card h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.cross-card p{font-size:14.5px;color:var(--ink-2);}

/* ============ footer ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{align-items:flex-start;height:auto;margin-bottom:16px;}
.footer-brand .brand-sub{letter-spacing:2px;}
.footer-brand p{font-size:14.5px;color:var(--ink-2);max-width:34ch;}
.site-footer h4{font-size:15px;font-weight:700;color:var(--primary-dark);margin-bottom:16px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{font-size:14.5px;color:var(--ink-2);}
.footer-links a:hover{color:var(--primary);text-decoration:underline;}
.footer-info{display:grid;gap:12px;font-size:14.5px;color:var(--ink-2);}
.copyright{margin-top:48px;border-top:1px solid var(--line);padding:20px 0 26px;text-align:center;}
.copyright p{font-size:13px;color:var(--ink-3);}

/* ============ responsive ============ */
@media (max-width:1023px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .nav-group{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{min-height:66px;justify-content:flex-start;gap:12px;}
  .brand{position:absolute;left:50%;transform:translateX(-50%);}
  .site-header .nav-inner{position:relative;}
  .mobile-panel{top:66px;}
  .hero{padding:24px 0 0;}
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:2;}
  .hero-visual::after{display:none;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cross-links{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .compare-head,.compare-row{grid-template-columns:1fr;}
  .compare-head span{padding:14px 20px;}
  .compare-row dt{padding:18px 20px 6px;}
  .compare-row dd{padding:6px 20px 20px;border-left:0;}
  .gallery{grid-template-columns:1fr;grid-template-rows:none;gap:18px;}
  .gallery figure{aspect-ratio:16/10;}
  .gallery figure:first-child{grid-row:auto;aspect-ratio:16/10;}
  .metric-strip{grid-template-columns:1fr;gap:16px;}
  .checklist{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .brand-main{font-size:18px;}
  .brand-sub{font-size:10px;letter-spacing:1.6px;}
  .hero h1{font-size:26px;}
  .hero-sub{font-size:15.5px;}
  .hero-lead{padding:16px 16px;font-size:15px;}
  .hero-actions .btn{width:100%;height:46px;}
  .cta-panel{padding:22px 18px;}
  .compare-head span,.compare-row dt,.compare-row dd{padding-left:16px;padding-right:16px;}
  .faq-accordion .accordion-title{padding:16px 50px 16px 18px;}
  .faq-accordion .accordion-content{padding:14px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .copyright{margin-top:32px;}
}