/* roulang page: index */
:root{
  --brand:#17606A;
  --brand-deep:#114C54;
  --brand-soft:#E7F0F0;
  --brand-mist:#EDF3F2;
  --slate:#47666B;
  --amber:#C97B3C;
  --bg:#F4F7F6;
  --ink:#17272B;
  --muted:#5A6F73;
  --danger:#B4472F;
  --line:rgba(23,96,106,0.12);
  --footer-bg:#0E2A2E;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 6px 18px rgba(14,42,46,0.06);
  --shadow-md:0 14px 32px rgba(14,42,46,0.12);
  --gap:24px;
  --section-y:96px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(23,96,106,0.28);outline-offset:2px;border-radius:6px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--section-y) 0;}
.section--mist{background:var(--brand-mist);}
.section--white{background:#fff;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head p{color:var(--muted);font-size:16px;margin-top:12px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:16px;font-weight:600;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:inline-block;}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:600;line-height:1.3;letter-spacing:0;}
h3{font-size:20px;font-weight:600;line-height:1.4;}

/* 导航 */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:90;padding:0 16px;}
.nav-shell{
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:64px;padding:0 12px 0 20px;
  background:rgba(255,255,255,0.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid rgba(23,96,106,0.08);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--shadow-md);border-color:var(--line);background:rgba(255,255,255,0.96);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;flex:0 0 34px;color:var(--brand);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.brand-sub{font-size:10px;letter-spacing:.16em;color:var(--slate);text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand);font-weight:600;}
.nav-links a.is-active::after{background:var(--brand);transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1.5px solid var(--brand);background:transparent;color:var(--brand);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  position:fixed;inset:0;z-index:95;
  background:rgba(14,42,46,0.42);
  display:none;
}
.nav-drawer.is-open{display:block;}
.nav-panel{
  background:#fff;border-radius:0 0 20px 20px;padding:20px 20px 24px;
  box-shadow:var(--shadow-md);
  max-height:100vh;overflow-y:auto;
}
.nav-panel a{
  display:flex;align-items:center;min-height:48px;
  font-size:16px;border-bottom:1px solid var(--line);color:var(--ink);
}
.nav-panel a.is-active{color:var(--brand);font-weight:600;}
.nav-panel .btn{margin-top:16px;width:100%;justify-content:center;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(23,96,106,0.18);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(23,96,106,0.26);}
.btn-primary:active{transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;}
.text-link .arrow{transition:transform .18s ease-out;}
.text-link:hover{color:var(--brand-deep);}
.text-link:hover .arrow{transform:translateX(3px);}

/* Hero */
.hero{position:relative;overflow:hidden;color:#fff;min-height:82vh;display:flex;align-items:center;padding:150px 0 76px;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  z-index:0;
}
.hero-bg::after{content:"";position:absolute;inset:0;background:rgba(14,42,46,0.66);}
.hero .wrap{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.24;font-weight:700;letter-spacing:0;
  color:#fff;margin:18px 0 0;
}
.hero h1 em{font-style:normal;color:#F0C79B;}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,0.86);
  max-width:36em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,0.7);}
.hero-actions .btn-outline:hover{background:rgba(255,255,255,0.14);color:#fff;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.28);
  font-size:13px;color:#fff;letter-spacing:.02em;
}
.hero-tag i{width:6px;height:6px;background:#8FD3C7;border-radius:50%;display:inline-block;}
.hero-trust{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:48px;padding-top:26px;border-top:1px solid rgba(255,255,255,0.2);
  gap:16px;
}
.hero-trust div{border-left:1px solid rgba(255,255,255,0.2);padding-left:16px;}
.hero-trust div:first-child{border-left:0;padding-left:0;}
.hero-trust strong{display:block;font-size:19px;color:#fff;font-weight:700;}
.hero-trust span{font-size:13px;color:rgba(255,255,255,0.76);}
.hero-panel{
  background:rgba(255,255,255,0.96);color:var(--ink);
  border-radius:20px;padding:24px;box-shadow:var(--shadow-md);
  border:1px solid rgba(255,255,255,0.6);
}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.hero-panel-head h2{font-size:15px;font-weight:600;letter-spacing:0;margin:0;}
.hero-panel-head span{font-size:12px;color:var(--muted);}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.panel-row:last-of-type{border-bottom:0;}
.panel-row strong{font-weight:600;}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:8px;background:#3FA08F;}
.dot.warn{background:var(--amber);}
.dot.idle{background:#9BB2B5;}
.panel-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;justify-content:space-between;}

/* 服务区 */
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
.service-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.service-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.service-feature img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.service-feature-body{padding:26px;}
.service-feature h3{margin-bottom:10px;}
.service-feature p{color:var(--muted);font-size:15px;line-height:1.75;}
.service-feature .text-link{margin-top:18px;}
.num-list{border-top:1px solid var(--line);}
.num-item{display:flex;gap:18px;padding:24px 0;border-bottom:1px solid var(--line);}
.num-item .num{font-size:20px;font-weight:700;color:var(--amber);line-height:1.2;min-width:34px;}
.num-item h3{font-size:18px;margin-bottom:8px;}
.num-item p{color:var(--muted);font-size:15px;line-height:1.75;}

/* 数据条 */
.stats{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  display:grid;grid-template-columns:repeat(4,1fr);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.stat{padding:32px 24px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;}
.stat strong{display:block;font-size:clamp(28px,3vw,38px);font-weight:700;color:var(--amber);line-height:1.15;letter-spacing:-.01em;}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--muted);}

/* 案例 */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:64px;}
.case-row:last-child{margin-bottom:0;}
.case-row.reverse .case-media{order:2;}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-sm);}
.tag{
  display:inline-block;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);
}
.case-body h3{font-size:clamp(20px,2.2vw,26px);margin:14px 0 12px;line-height:1.35;}
.case-body p{color:var(--muted);font-size:15px;line-height:1.8;}
.case-points{margin-top:18px;display:grid;gap:10px;}
.case-points li{display:flex;gap:10px;font-size:15px;color:var(--ink);}
.case-points li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:10px;
  background:var(--brand);border-radius:2px;
}

/* 方案 */
.plan-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start;}
.plan-list{border-top:1px solid var(--line);}
.plan-item{
  display:flex;gap:20px;padding:26px 20px;border-bottom:1px solid var(--line);
  border-radius:12px;transition:background .18s ease-out,transform .18s ease-out;
}
.plan-item:hover{background:#fff;transform:translateX(3px);}
.plan-item .num{font-size:15px;font-weight:700;color:var(--amber);letter-spacing:.06em;min-width:30px;padding-top:2px;}
.plan-item h3{font-size:18px;margin-bottom:8px;}
.plan-item p{color:var(--muted);font-size:15px;line-height:1.75;}
.plan-sticky{position:sticky;top:110px;}
.plan-sticky img{width:100%;border-radius:var(--radius-card);box-shadow:var(--shadow-md);aspect-ratio:4/3;object-fit:cover;}
.plan-note{
  margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;font-size:14px;color:var(--muted);
}
.plan-note strong{color:var(--ink);display:block;margin-bottom:6px;font-size:15px;}

/* 最新信息 */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.post-card:hover h3 a{color:var(--brand);}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-excerpt{color:var(--muted);font-size:14px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.post-meta a{color:var(--brand);font-weight:600;font-size:13px;}
.post-grid>.post-card:first-child:nth-last-child(n+2){grid-column:span 2;}
.post-grid>.post-card:first-child:nth-last-child(n+2) .post-thumb img{aspect-ratio:16/9;}
.post-grid>.post-card:first-child:nth-last-child(n+2) h3{font-size:20px;}
.empty-state{
  grid-column:1/-1;min-height:240px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;text-align:center;
  background:var(--brand-mist);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:40px 24px;color:var(--muted);
}
.empty-state svg{width:44px;height:44px;color:var(--slate);opacity:.7;}
.empty-state p{font-size:15px;}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-side h2{margin-bottom:14px;}
.faq-side p{color:var(--muted);font-size:15px;line-height:1.8;max-width:24em;}
.faq-side .contact-mini{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);}
.faq-side .contact-mini a{color:var(--brand);font-weight:600;}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-child{border-top:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .18s ease-out,background .18s ease-out;
  position:relative;
}
.faq-q:hover{color:var(--brand);background:rgba(237,243,242,0.6);}
.faq-q .sign{position:relative;flex:0 0 16px;width:16px;height:16px;}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-q .sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-q .sign::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-q .sign::after{transform:scaleY(0);opacity:0;}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--brand);border-radius:0 3px 3px 0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease-out;}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.contact-info h2{margin-bottom:14px;}
.contact-info p{color:var(--muted);font-size:15px;line-height:1.85;}
.info-list{margin-top:26px;display:grid;gap:16px;}
.info-list li{display:flex;gap:12px;font-size:15px;color:var(--ink);}
.info-list li strong{color:var(--slate);font-weight:600;min-width:80px;font-size:14px;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--slate);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:12px 14px;color:var(--ink);line-height:1.6;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input{height:46px;}
.field textarea{min-height:120px;resize:vertical;}
.field input:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,96,106,0.14);outline:none;
}
.form-hint{font-size:13px;color:var(--muted);margin-top:14px;}
.form-note{font-size:13px;color:var(--danger);margin-top:8px;display:none;}
.form-note.is-show{display:block;}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,0.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,0.5);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,0.62);max-width:22em;}
.footer-col h3{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,0.68);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.12);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,0.5);
}
.footer-bottom a{color:rgba(255,255,255,0.6);}
.footer-bottom a:hover{color:#fff;}

/* 响应式 */
@media (max-width:1199px){
  :root{--section-y:80px;}
  .hero-grid{gap:36px;}
}
@media (max-width:991px){
  :root{--section-y:64px;}
  .nav-links{display:none;}
  .nav-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{min-height:auto;padding:132px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-panel{max-width:520px;}
  .service-grid,.plan-grid,.faq-grid,.contact-grid{grid-template-columns:1fr;gap:36px;}
  .case-row{grid-template-columns:1fr;gap:28px;margin-bottom:52px;}
  .case-row.reverse .case-media{order:0;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-grid>.post-card:first-child:nth-last-child(n+2){grid-column:span 2;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3){border-left:0;}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
  .plan-sticky{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--section-y:52px;}
  .wrap{padding:0 16px;}
  .site-header{padding:0 12px;top:12px;}
  .nav-shell{height:58px;padding:0 10px 0 14px;}
  .brand-name{font-size:15px;}
  .hero{padding:112px 0 52px;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-sub{font-size:15px;}
  .hero-trust{grid-template-columns:1fr;gap:14px;padding-top:20px;}
  .hero-trust div{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,0.16);padding-top:12px;}
  .hero-trust div:first-child{border-top:0;padding-top:0;}
  .hero-actions .btn{width:100%;}
  .post-grid{grid-template-columns:1fr;}
  .post-grid>.post-card:first-child:nth-last-child(n+2){grid-column:span 1;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat{padding:22px 18px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
  .form-card{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .list-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .stat strong{font-size:26px;}
  .service-feature-body{padding:20px;}
  .post-body{padding:18px;}
}

/* roulang page: article */
:root{
  --brand:#17606A;
  --brand-dark:#114C54;
  --brand-tint:#E7F0F0;
  --brand-tint-2:#EDF3F2;
  --stone:#47666B;
  --amber:#C97B3C;
  --ink:#17272B;
  --ink-soft:#5A6F73;
  --danger:#B4472F;
  --bg:#F4F7F6;
  --surface:#FFFFFF;
  --line:rgba(23,96,106,.12);
  --line-strong:rgba(23,96,106,.26);
  --footer:#0E2A2E;
  --r-lg:16px;
  --r-md:10px;
  --r-pill:999px;
  --sh-1:0 6px 18px rgba(14,42,46,.06);
  --sh-2:0 14px 32px rgba(14,42,46,.12);
  --container:1200px;
  --sect:clamp(52px,6vw,96px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:1.15em}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(23,96,106,.28);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;padding:16px 24px 0;pointer-events:none}
.nav-shell{
  pointer-events:auto;
  max-width:1180px;margin:0 auto;
  height:64px;display:flex;align-items:center;gap:22px;
  padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid transparent;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.site-header.is-stuck .nav-shell{border-color:var(--line);box-shadow:var(--sh-1)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand .brand-mark{width:34px;height:34px;color:var(--brand);flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand .brand-name{font-size:17px;font-weight:700;color:var(--brand-dark);letter-spacing:.3px}
.brand .brand-sub{font-size:10px;letter-spacing:.14em;color:var(--stone);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:transparent;transition:background-color .18s ease-out;
}
.nav-links a:hover{color:var(--brand-dark)}
.nav-links a:hover::after{background:var(--amber)}
.nav-links a.is-active{color:var(--brand);font-weight:600}
.nav-links a.is-active::after{background:var(--brand)}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  transition:background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.nav-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(17,76,84,.22)}
.nav-cta:active{transform:translateY(0)}
.nav-burger{
  display:none;width:44px;height:44px;margin-left:auto;border-radius:50%;
  border:1px solid var(--line-strong);background:#fff;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-nav{
  pointer-events:auto;display:none;max-width:1180px;margin:12px auto 0;
  background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-2);
  padding:12px;
}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;color:var(--ink);font-size:16px}
.mobile-nav a:hover{background:var(--brand-tint);color:var(--brand-dark)}
.mobile-nav a.is-active{background:var(--brand-tint);color:var(--brand-dark);font-weight:600}
.mobile-nav .m-cta{margin-top:8px;justify-content:center;background:var(--brand);color:#fff;font-weight:600}
.mobile-nav .m-cta:hover{background:var(--brand-dark);color:#fff}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-dark);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.btn-text .arw{transition:transform .18s ease-out}
.btn-text:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.btn-text:hover .arw{transform:translateX(3px)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-tint);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-amber{background:rgba(201,123,60,.12);color:#A5612B}

/* ---------- 面包屑 ---------- */
.crumbs{padding:104px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;font-size:13px;color:var(--stone)}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0}
.crumbs li+li::before{content:"/";color:var(--stone);opacity:.55}
.crumbs a{color:var(--brand)}
.crumbs a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.crumbs li[aria-current] span{display:block;max-width:min(58vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-soft)}

/* ---------- 文章头部 ---------- */
.article-hero{padding:26px 0 0}
.article-hero .badge{margin-bottom:18px}
.article-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.32;font-weight:700;letter-spacing:0;
  max-width:20em;color:var(--ink);
}
.article-summary{
  margin-top:18px;max-width:52em;font-size:16.5px;line-height:1.85;color:var(--ink-soft);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:24px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-soft);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row .meta-item+.meta-item::before{content:"";width:1px;height:12px;background:var(--line-strong);margin-right:12px;display:inline-block}
.meta-row strong{color:var(--brand);font-weight:600}

/* ---------- 正文布局 ---------- */
.article-section{padding:44px 0 var(--sect)}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-main{min-width:0}
.article-figure{
  margin-bottom:36px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh-1);
}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out}
.article-figure:hover img{transform:scale(1.02)}
.article-figure figcaption{padding:12px 18px;font-size:13px;color:var(--ink-soft);border-top:1px solid var(--line);background:#fff}

.article-body{
  max-width:760px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(24px,4vw,48px);
  box-shadow:var(--sh-1);
  font-size:17px;line-height:1.9;color:var(--ink);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body>*+*{margin-top:18px}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:600;color:var(--brand-dark);
  margin-top:40px;padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);margin-top:28px}
.article-body h4{font-size:17px;font-weight:600;color:var(--brand-dark);margin-top:22px}
.article-body p{color:var(--ink)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-dark);text-decoration-thickness:2px}
.article-body ul,.article-body ol{padding-left:1.2em}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--amber);font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--brand);
  background:var(--brand-tint-2);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--stone);
}
.article-body blockquote p{margin:0;color:var(--stone)}
.article-body img{border-radius:12px;margin:24px auto;max-width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{background:var(--brand-tint);color:var(--brand-dark);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFCFB}
.article-body tbody tr:last-child td{border-bottom:none}
.article-body code{
  background:#EEF2F1;color:#2A4A4F;border-radius:6px;padding:2px 6px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
}
.article-body pre{
  background:#0E2A2E;color:#DCEAEA;border-radius:12px;padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}

/* 空态 */
.empty-state{
  max-width:760px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .empty-mark{
  width:64px;height:64px;margin:0 auto 20px;border-radius:50%;
  background:var(--brand-tint);display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.empty-state h2{font-size:22px;font-weight:600;color:var(--brand-dark)}
.empty-state p{margin-top:10px;color:var(--ink-soft);font-size:15px}
.empty-state .btn{margin-top:24px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.side-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.side-card h2{font-size:16px;font-weight:600;color:var(--brand-dark);margin-bottom:10px}
.side-card p{font-size:14px;line-height:1.75;color:var(--ink-soft)}
.side-card .btn{width:100%;height:44px;font-size:14.5px;margin-top:16px}
.side-list{list-style:none;margin:14px 0 0;padding:0}
.side-list li+li{border-top:1px solid var(--line)}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;font-size:14.5px;color:var(--ink)}
.side-list a:hover{color:var(--brand)}
.side-list a .arw{color:var(--stone);transition:transform .18s ease-out}
.side-list a:hover .arw{transform:translateX(3px);color:var(--brand)}
.side-card.is-accent{background:var(--brand-tint-2);border-color:rgba(23,96,106,.18)}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--sect)}
.related-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.related-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;color:var(--brand-dark)}
.related-head p{font-size:15px;color:var(--ink-soft);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(23,96,106,.22)}
.related-card .idx{font-size:13px;font-weight:700;color:var(--amber);letter-spacing:.08em}
.related-card h3{font-size:17px;font-weight:600;color:var(--ink);margin-top:8px;line-height:1.5}
.related-card:hover h3{color:var(--brand)}
.related-card p{font-size:14px;line-height:1.75;color:var(--ink-soft);margin-top:8px;flex:1}
.related-card .more{margin-top:16px;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.related-card:hover .more{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ---------- CTA / 联系 ---------- */
.cta-band{background:var(--brand-tint-2);padding:var(--sect) 0;scroll-margin-top:100px}
.cta-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.cta-copy h2{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:700;color:var(--brand-dark)}
.cta-copy p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--stone);max-width:32em}
.cta-facts{list-style:none;margin:26px 0 0;padding:0;display:flex;flex-direction:column;gap:12px}
.cta-facts li{display:flex;gap:10px;font-size:15px;color:var(--ink)}
.cta-facts li::before{content:"";flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--amber);margin-top:10px}
.cta-note{margin-top:24px;font-size:13px;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:16px}

.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(22px,3vw,34px);box-shadow:var(--sh-1)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;font-weight:600;color:var(--stone)}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--r-md);
  background:#fff;padding:0 14px;height:46px;font-size:15px;color:var(--ink);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9AAFAF}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,96,106,.16);
}
.form-card .btn{width:100%}
.form-tip{margin-top:14px;font-size:13px;color:var(--ink-soft)}
.form-tip.is-error{color:var(--danger)}
.form-tip.is-ok{color:var(--brand)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:rgba(255,255,255,.72);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand .brand-mark{width:34px;height:34px;color:#fff;flex:0 0 auto}
.footer-brand .brand-name{display:block;font-size:17px;font-weight:700;color:#fff;letter-spacing:.3px}
.footer-brand .brand-sub{display:block;font-size:10px;letter-spacing:.14em;color:rgba(255,255,255,.55);text-transform:uppercase}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:26em}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:36px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  .site-header{padding:12px 16px 0}
  .nav-shell{height:60px;padding:0 10px 0 14px}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 260px}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .crumbs{padding-top:92px}
}
@media(max-width:767px){
  body{font-size:16px}
  .container,.wrap{padding:0 16px}
  .article-hero h1{font-size:clamp(24px,6.4vw,32px)}
  .article-summary{font-size:15px}
  .meta-row{font-size:12.5px;gap:8px 12px}
  .meta-row .meta-item+.meta-item::before{margin-right:6px}
  .article-body{font-size:16px;line-height:1.85;border-radius:14px}
  .article-body table{display:block;white-space:nowrap;overflow-x:auto}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .form-row{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-grid>div:first-child{grid-column:1/-1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-side{flex-direction:column}
  .article-side .side-card{flex:1 1 auto}
}
@media(max-width:520px){
  .btn{width:100%;padding:0 20px}
  .btn-text{width:auto}
  .side-card .btn{width:100%}
  .article-hero h1{font-size:24px}
  .badge{height:24px;font-size:11.5px}
  .footer-grid{grid-template-columns:1fr}
  .crumbs li[aria-current] span{max-width:46vw}
}

/* roulang page: category1 */
:root{
  --primary:#17606A;
  --primary-dark:#114C54;
  --primary-light:#E7F0F0;
  --surface-alt:#EDF3F2;
  --stone:#47666B;
  --amber:#C97B3C;
  --bg:#F4F7F6;
  --surface:#FFFFFF;
  --ink:#17272B;
  --muted:#5A6F73;
  --danger:#B4472F;
  --footer-bg:#0E2A2E;
  --border:rgba(23,96,106,0.12);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 6px 18px rgba(14,42,46,0.06);
  --shadow-2:0 14px 32px rgba(14,42,46,0.12);
  --ease:cubic-bezier(.33,.1,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body,button,input,textarea,select,summary{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;color:var(--primary-dark);letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary-dark);}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(23,96,106,.28);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.grid-x{margin:0;}
.grid-x.gap-lg{gap:40px;}
.grid-x.gap-lg>.cell{flex:1 1 0;min-width:0;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:16px;z-index:120;padding:0 16px;}
.nav-shell{
  max-width:1180px;margin:0 auto;min-height:64px;
  display:flex;align-items:center;gap:22px;
  padding:10px 14px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px) saturate(150%);
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  border:1px solid rgba(255,255,255,.65);
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  background:rgba(255,255,255,.95);
  border-color:var(--border);
  box-shadow:var(--shadow-1);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--primary-dark);}
.brand-mark{width:34px;height:34px;color:var(--primary);flex:0 0 auto;}
.brand-text{display:block;}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.2;color:var(--primary-dark);letter-spacing:.02em;}
.brand-sub{display:block;font-size:10.5px;line-height:1.3;letter-spacing:.18em;text-transform:uppercase;color:var(--stone);}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{position:relative;font-size:15px;color:var(--stone);padding:6px 0;white-space:nowrap;}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--primary-dark);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary);font-weight:600;}
.nav-links a.is-active::after{background:var(--primary);transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 8px 18px rgba(23,96,106,.18);
  transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease);
}
.nav-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(23,96,106,.24);}
.nav-cta:active{transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  border-radius:50%;border:1.5px solid rgba(23,96,106,.35);
  background:#fff;color:var(--primary);
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-light);}
.bars{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.bars::before,.bars::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.bars::before{top:-6px;}
.bars::after{top:6px;}
.mobile-panel{
  position:fixed;inset:0;z-index:110;background:#fff;
  padding:100px 24px 32px;display:flex;flex-direction:column;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease);
  overflow-y:auto;
}
.mobile-panel.is-open{opacity:1;transform:none;pointer-events:auto;}
.mobile-panel a.m-link{
  display:flex;align-items:center;min-height:52px;
  font-size:17px;color:var(--ink);border-bottom:1px solid var(--border);
}
.mobile-panel a.m-link.is-active{color:var(--primary);font-weight:600;}
.mobile-panel .mobile-cta{width:100%;margin-top:24px;}
body.nav-open{overflow:hidden;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(23,96,106,.18);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(23,96,106,.24);}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 8px 18px rgba(23,96,106,.2);}
.btn-ghost{background:transparent;border-color:rgba(23,96,106,.42);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(-1px);}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:26px;}
.crumbs a{color:var(--primary);}
.crumbs a:hover{color:var(--primary-dark);}
.crumbs .sep{color:var(--stone);opacity:.55;}
.crumbs .current{color:var(--muted);}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:52px 0 88px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--primary-light);color:var(--primary);
  font-size:12.5px;font-weight:600;letter-spacing:.05em;
}
.hero h1{font-size:clamp(32px,4.2vw,50px);font-weight:700;line-height:1.22;margin-top:20px;color:var(--primary-dark);}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--muted);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{display:flex;flex-wrap:wrap;margin-top:42px;border-top:1px solid var(--border);padding-top:22px;}
.hero-trust .trust-item{
  flex:1 1 30%;min-width:150px;padding:0 20px;border-right:1px solid var(--border);
}
.hero-trust .trust-item:first-child{padding-left:0;}
.hero-trust .trust-item:last-child{border-right:0;padding-right:0;}
.hero-trust strong{display:block;font-size:22px;font-weight:700;color:var(--amber);line-height:1.3;font-family:Inter,-apple-system,"Segoe UI",sans-serif;}
.hero-trust span{display:block;margin-top:4px;font-size:13.5px;color:var(--muted);line-height:1.6;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:20px;box-shadow:var(--shadow-2);
}

/* ---------- 板块骨架 ---------- */
.section{padding:92px 0;}
.section-alt{background:var(--surface-alt);}
.section-head{max-width:660px;margin-bottom:40px;}
.eyebrow{display:block;font-size:12.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--amber);}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-top:12px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.8;}

/* ---------- 接入方式对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.compare-note{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-1);
}
.compare-note h3{font-size:20px;}
.compare-note p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted);}
.compare-note ul{margin-top:20px;display:grid;gap:12px;}
.compare-note li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.7;color:var(--stone);}
.compare-note li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--primary);}
.option-list{display:grid;}
.option-item{display:grid;grid-template-columns:58px 1fr;gap:14px;padding:24px 0;border-bottom:1px solid var(--border);}
.option-item:first-child{padding-top:0;}
.option-item:last-child{border-bottom:0;padding-bottom:0;}
.option-num{font-size:26px;font-weight:700;line-height:1;color:var(--amber);font-family:Inter,-apple-system,"Segoe UI",sans-serif;padding-top:4px;}
.option-item h3{font-size:19px;}
.option-item p{margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--muted);}
.option-tag{display:inline-block;margin-top:12px;padding:4px 12px;border-radius:var(--radius-pill);background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;}

/* ---------- 终端覆盖 ---------- */
.term-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.term-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.term-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.term-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.term-body{padding:18px 20px 22px;}
.term-body h3{font-size:16.5px;}
.term-body p{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--muted);}

/* ---------- 开通流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step::after{content:"";position:absolute;top:50%;right:-13px;width:12px;height:1px;background:rgba(23,96,106,.3);}
.step:last-child::after{display:none;}
.step-num{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--amber);font-family:Inter,-apple-system,"Segoe UI",sans-serif;}
.step h3{font-size:17px;margin-top:10px;}
.step p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-aside h2{font-size:clamp(24px,3vw,32px);}
.faq-aside p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--muted);}
.aside-link{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-size:15px;font-weight:600;color:var(--primary);}
.aside-link:hover{color:var(--primary-dark);}
.faq-accordion{display:grid;gap:12px;}
details.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:0 22px;box-shadow:var(--shadow-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
details.faq-item[open]{border-color:rgba(23,96,106,.34);box-shadow:var(--shadow-2);}
details.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:20px 0;font-size:16.5px;font-weight:600;color:var(--primary-dark);
}
details.faq-item summary::-webkit-details-marker{display:none;}
details.faq-item summary::after{content:"＋";font-size:20px;font-weight:400;line-height:1;color:var(--primary);}
details.faq-item[open] summary::after{content:"－";}
.faq-body{border-top:1px solid var(--border);padding:16px 0 22px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- 关联分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease);}
.related-card:hover img{transform:scale(1.03);}
.related-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;align-self:flex-start;
}
.related-body h3{font-size:18px;margin-top:12px;}
.related-body p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);flex:1 1 auto;}
.related-more{margin-top:16px;font-size:14px;font-weight:600;color:var(--primary);}
.related-card:hover .related-more{color:var(--primary-dark);}
.related-card:hover h3{color:var(--primary);}

/* ---------- CTA ---------- */
.cta-band{background:var(--surface-alt);padding:76px 0;border-top:1px solid var(--border);}
.cta-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
  background:var(--surface);border:1px solid var(--border);border-radius:24px;
  padding:44px;box-shadow:var(--shadow-1);
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);}
.cta-inner p{margin-top:14px;font-size:15.5px;line-height:1.8;color:var(--muted);max-width:36em;}
.cta-side{display:grid;gap:12px;justify-items:start;}
.cta-side .cta-note{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;}
.footer-brand .brand-mark{width:34px;height:34px;color:#8FC6C6;}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;line-height:1.2;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:26em;}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;line-height:1.7;}
.site-footer a{color:rgba(255,255,255,.72);font-size:14px;}
.site-footer a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{font-size:13px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .section{padding:80px 0;}
  .hero{padding:44px 0 72px;}
  .hero-grid{gap:40px;}
  .cta-inner{padding:36px;}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-shell{min-height:60px;padding:8px 12px 8px 16px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/10;}
  .compare{grid-template-columns:1fr;gap:30px;}
  .term-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container,.wrap{padding:0 16px;}
  .section{padding:52px 0;}
  .hero{padding:32px 0 56px;}
  .hero h1{font-size:clamp(28px,7.2vw,36px);}
  .hero-lead{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-trust{flex-direction:column;gap:0;padding-top:18px;}
  .hero-trust .trust-item{flex:1 1 100%;min-width:0;padding:12px 0;border-right:0;border-bottom:1px solid var(--border);}
  .hero-trust .trust-item:last-child{border-bottom:0;}
  .term-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .option-item{grid-template-columns:44px 1fr;gap:10px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col ul{grid-template-columns:1fr 1fr;display:grid;gap:10px 16px;}
  .cta-inner{padding:26px;}
  .cta-side{justify-items:stretch;}
  .cta-side .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:479px){
  body{font-size:15.5px;}
  .brand-name{font-size:15.5px;}
  .brand-sub{font-size:10px;letter-spacing:.14em;}
  .brand-mark{width:30px;height:30px;}
  .section-head h2{font-size:23px;}
  .compare-note{padding:22px;}
  details.faq-item{padding:0 18px;}
  .cta-inner{padding:22px;}
}

/* roulang page: category2 */
:root{
  --primary:#17606A;
  --primary-dark:#114C54;
  --primary-soft:#E7F0F0;
  --primary-soft-2:#EDF3F2;
  --accent:#C97B3C;
  --rock:#47666B;
  --ink:#17272B;
  --ink-soft:#5A6F73;
  --danger:#B4472F;
  --bg:#F4F7F6;
  --white:#FFFFFF;
  --line:rgba(23,96,106,0.12);
  --footer-bg:#0E2A2E;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-sm:0 6px 18px rgba(14,42,46,0.06);
  --shadow-md:0 14px 32px rgba(14,42,46,0.12);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.33,.7,.4,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;color:var(--ink);letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:3px solid rgba(23,96,106,.28);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--soft{background:var(--primary-soft-2)}
.section--white{background:var(--white)}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(26px,2.6vw,34px)}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:16px;max-width:42em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);border-radius:999px;
  padding:5px 14px;line-height:1.6;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:sticky;top:16px;z-index:80;
  padding:0 24px;
}
.nav-shell{
  max-width:1180px;margin:0 auto;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 12px 0 22px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid transparent;
  border-radius:999px;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  border-color:var(--line);
  box-shadow:var(--shadow-sm);
  background:rgba(255,255,255,.95);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--primary);flex:0 0 auto}
.brand:hover{color:var(--primary-dark)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;color:inherit;letter-spacing:.5px}
.brand-sub{font-size:10px;letter-spacing:1.4px;color:var(--rock);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-soft);
  padding:4px 0;white-space:nowrap;transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .18s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary);font-weight:600}
.nav-links a.is-active::after{background:var(--primary);transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1.5px solid var(--primary);background:transparent;color:var(--primary);
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;
  transition:transform .2s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{
  display:none;position:fixed;inset:0;z-index:90;
  background:var(--white);padding:88px 24px 32px;
  overflow-y:auto;
}
.mobile-panel.is-open{display:block}
.mobile-panel .mobile-nav{display:flex;flex-direction:column}
.mobile-panel .mobile-nav a{
  display:flex;align-items:center;min-height:48px;font-size:16px;
  color:var(--ink);border-bottom:1px solid var(--line);
}
.mobile-panel .mobile-nav a.is-active{color:var(--primary);font-weight:600}
.mobile-panel .btn{margin-top:24px;width:100%;justify-content:center}
.mobile-close{
  position:absolute;top:20px;right:24px;width:44px;height:44px;border-radius:50%;
  border:1.5px solid var(--primary);background:transparent;color:var(--primary);
  font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;
}

/* ============ 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;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(23,96,106,.18)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(23,96,106,.26)}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 22px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-weight:600;font-size:15px;background:none;border:0;padding:0;
}
.btn-text .arrow{transition:transform .18s var(--ease)}
.btn-text:hover{color:var(--primary-dark)}
.btn-text:hover .arrow{transform:translateX(3px)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--rock);margin-bottom:28px}
.breadcrumb a{color:var(--primary)}
.breadcrumb .sep{color:var(--rock);opacity:.7}
.breadcrumb .current{color:var(--ink-soft)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;padding:44px 0 88px;
  background:
    radial-gradient(900px 420px at 88% -10%, rgba(23,96,106,.10), transparent 70%),
    linear-gradient(180deg,#F4F7F6 0%,#EDF3F2 100%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy h1{font-size:clamp(32px,4vw,52px);font-weight:700;line-height:1.25;margin-top:20px}
.hero-lead{margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:0;margin-top:36px;
  border-top:1px solid var(--line);padding-top:20px;
}
.hero-trust li{
  position:relative;padding:0 24px;font-size:14px;color:var(--ink-soft);
}
.hero-trust li:first-child{padding-left:0}
.hero-trust li + li::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--line);
}
.hero-trust strong{display:block;font-size:20px;color:var(--primary);font-weight:700;line-height:1.4}
.hero-media{position:relative}
.hero-media .media-frame{
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-md);
  aspect-ratio:4/3;background:var(--primary-soft);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-md);padding:14px 20px;min-width:196px;
}
.hero-float .num{font-size:26px;font-weight:700;color:var(--accent);line-height:1.2}
.hero-float .label{font-size:13px;color:var(--ink-soft);margin-top:2px}

/* ============ 台账与状态 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);aspect-ratio:16/11;background:var(--primary-soft)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-copy h2{font-size:clamp(24px,2.4vw,32px)}
.split-copy p.lead{margin-top:16px;color:var(--ink-soft);font-size:16px}
.point-list{margin-top:26px;display:flex;flex-direction:column;gap:16px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink)}
.point-list .dot{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;margin-top:2px;
}
.point-list strong{color:var(--primary-dark)}

/* ============ 能力清单 ============ */
.cap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 32px}
.cap-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.cap-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.cap-check{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;
  border:1.5px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
  margin-top:3px;background:var(--primary-soft);
}
.cap-item h3{font-size:16px;font-weight:600;line-height:1.5}
.cap-item p{font-size:14px;color:var(--ink-soft);line-height:1.7;margin-top:4px}

/* ============ 场景表格 ============ */
.table-shell{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.table-scroll{overflow-x:auto}
.scene-table{width:100%;border-collapse:collapse;min-width:680px;font-size:15px}
.scene-table th{
  text-align:left;padding:16px 22px;background:var(--primary-soft);
  color:var(--primary-dark);font-weight:600;font-size:14px;letter-spacing:.3px;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.scene-table td{padding:16px 22px;border-bottom:1px solid var(--line);color:var(--ink);vertical-align:top}
.scene-table tbody tr:nth-child(even){background:#FAFCFB}
.scene-table tbody tr:last-child td{border-bottom:0}
.scene-table td:first-child{font-weight:600;color:var(--primary-dark);white-space:nowrap}
.scene-table td .muted{color:var(--ink-soft);font-size:14px}

/* ============ 数据条 ============ */
.stats-band{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  padding:36px 12px;
}
.stat{position:relative;text-align:center;padding:6px 20px}
.stat + .stat::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--line)}
.stat .num{font-size:clamp(30px,3.4vw,40px);font-weight:700;color:var(--accent);line-height:1.15;letter-spacing:-.5px}
.stat .desc{margin-top:6px;font-size:14px;color:var(--ink-soft)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside h2{font-size:clamp(24px,2.4vw,32px)}
.faq-aside p{margin-top:14px;color:var(--ink-soft);font-size:15px}
.faq-aside .aside-link{margin-top:22px;display:inline-flex}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-item.is-open{border-color:rgba(23,96,106,.34);box-shadow:var(--shadow-md)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;padding:20px 24px;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  border-left:3px solid transparent;transition:border-color .18s var(--ease),color .18s var(--ease);
}
.faq-item.is-open .faq-q{border-left-color:var(--primary);color:var(--primary-dark)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:400;color:var(--primary);line-height:1;
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a p{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--ink-soft)}

/* ============ 关联分类跳转条 ============ */
.related-strip{
  background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:34px 0;
}
.related-inner{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.related-inner .label{font-size:14px;color:var(--rock);font-weight:600;margin-right:6px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 20px;border-radius:999px;border:1px solid var(--line);
  background:var(--bg);font-size:14px;color:var(--ink);
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.chip:hover{background:var(--primary-soft);border-color:rgba(23,96,106,.3);color:var(--primary-dark);transform:translateY(-2px)}
.chip.is-current{background:var(--primary);border-color:var(--primary);color:#fff}
.chip.is-current:hover{transform:none;color:#fff}

/* ============ CTA ============ */
.cta-band{background:var(--primary-soft-2);padding:80px 0}
.cta-inner{
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow-sm);padding:48px;
}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px)}
.cta-inner p{margin-top:14px;color:var(--ink-soft);font-size:15px;max-width:36em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-note{margin-top:22px;font-size:13px;color:var(--rock)}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand .brand-mark{width:34px;height:34px;color:#8FC3C6}
.footer-brand .brand-name{font-size:17px;font-weight:700;color:#fff;display:block;line-height:1.2}
.footer-brand .brand-sub{font-size:10px;letter-spacing:1.4px;color:rgba(255,255,255,.5);text-transform:uppercase}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:24em}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.66)}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .section{padding:80px 0}
  .hero-grid{gap:40px}
  .split{gap:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn{display:none}
  .site-header{padding:0 16px}
  .wrap{padding:0 20px}
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-float{left:auto;right:12px;bottom:-18px;padding:12px 16px;min-width:170px}
  .split{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;padding:36px;gap:24px}
  .cta-actions{justify-content:flex-start}
  .cap-grid{grid-template-columns:1fr}
  .stats-band{padding:28px 4px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .section{padding:52px 0}
  .page-hero{padding:28px 0 64px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-trust{gap:16px 0}
  .hero-trust li{padding:0 16px;font-size:13px}
  .hero-trust li:first-child{padding-left:0}
  .hero-trust strong{font-size:18px}
  .stats-band{grid-template-columns:1fr;gap:0;padding:8px 0}
  .stat{padding:20px 16px}
  .stat + .stat::before{left:16px;right:16px;top:0;bottom:auto;width:auto;height:1px}
  .cta-inner{padding:26px}
  .cta-actions .btn{width:100%}
  .related-inner{gap:10px}
  .chip{font-size:13px;padding:8px 16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .scene-table th,.scene-table td{padding:14px 16px}
}
@media (max-width:519px){
  .brand-name{font-size:15px}
  .brand-sub{font-size:9px}
  .hero-copy h1{font-size:clamp(26px,7.6vw,34px)}
  .hero-lead{font-size:15px}
  .cap-item{padding:16px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
  .hero-float{position:static;margin-top:16px;display:inline-block}
  .cta-inner h2{font-size:22px}
}

/* roulang page: category3 */
:root{
  --primary:#17606A;
  --primary-dark:#114C54;
  --primary-soft:#E7F0F0;
  --primary-soft-2:#EDF3F2;
  --stone:#47666B;
  --amber:#C97B3C;
  --ink:#17272B;
  --muted:#5A6F73;
  --line:rgba(23,96,106,.12);
  --footer:#0E2A2E;
  --danger:#B4472F;
  --bg:#F4F7F6;
  --white:#ffffff;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh:0 6px 18px rgba(14,42,46,.06);
  --sh-h:0 14px 32px rgba(14,42,46,.12);
  --t:190ms ease-out;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--primary-dark)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:600;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
::selection{background:var(--primary-soft);color:var(--primary-dark)}
:focus-visible{outline:3px solid rgba(23,96,106,.28);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:80;
  padding:0 24px;
}
.nav-shell{
  max-width:1180px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:22px;
  padding:0 14px 0 22px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid transparent;
  border-radius:var(--r-pill);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled .nav-shell{
  border-color:var(--line);
  box-shadow:var(--sh);
  background:rgba(255,255,255,.95);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;color:var(--primary);flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-sub{font-size:10.5px;letter-spacing:1.4px;color:var(--muted);text-transform:uppercase}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--stone);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background var(--t);
}
.nav-links a:hover{color:var(--primary-dark)}
.nav-links a:hover::after{background:var(--amber)}
.nav-links a.is-active{color:var(--primary);font-weight:600}
.nav-links a.is-active::after{background:var(--primary)}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  background:var(--primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid var(--primary);
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.nav-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-h)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:50%;
  border:1.5px solid var(--primary);
  background:transparent;
  color:var(--primary);
  padding:0;
}
.nav-toggle span{display:block;position:relative;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform var(--t),top var(--t)
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}
.nav-mobile-cta{display:none}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 6px 16px rgba(23,96,106,.18)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(23,96,106,.24)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(23,96,106,.45)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--primary);border-color:#fff}
.btn-light:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary-soft);transform:translateY(-2px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
}
.btn-text .arrow{transition:transform var(--t)}
.btn-text:hover{color:var(--primary-dark)}
.btn-text:hover .arrow{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  max-width:var(--wrap);
  margin:0 auto;
  padding:22px 24px 0;
  font-size:13px;
  color:var(--stone);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:rgba(71,102,107,.5)}
.breadcrumb .current{color:var(--stone)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  margin-top:18px;
  overflow:hidden;
  border-radius:24px;
  max-width:var(--wrap);
  margin-left:auto;
  margin-right:auto;
  color:#fff;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,38,42,.92) 0%,rgba(14,42,46,.78) 52%,rgba(17,76,84,.62) 100%);
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
  padding:76px 0 72px;
}
.hero-text{max-width:600px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.4px;
  background:var(--primary-soft);color:var(--primary);
}
.badge-light{background:rgba(231,240,240,.16);color:#D9EAEA;border:1px solid rgba(231,240,240,.24)}
.hero h1{
  font-size:clamp(32px,4vw,50px);
  font-weight:700;
  line-height:1.25;
  margin:20px 0 18px;
  color:#fff;
}
.hero-sub{
  font-size:clamp(16px,1.3vw,18.5px);
  line-height:1.85;
  color:rgba(255,255,255,.82);
  max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-actions .btn-ghost{color:#E7F0F0;border-color:rgba(231,240,240,.5)}
.hero-actions .btn-ghost:hover{background:rgba(231,240,240,.14);color:#fff;border-color:#E7F0F0}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  margin-top:32px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.18);
  font-size:13.5px;color:rgba(255,255,255,.72);
}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--amber);flex:0 0 auto;
}
.hero-status{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-card);
  padding:26px 26px 22px;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.hero-status h2{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;
  letter-spacing:.4px;
}
.hero-status li{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:13px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
  font-size:14.5px;color:rgba(255,255,255,.8);
}
.hero-status li:last-child{border-bottom:0;padding-bottom:0}
.hero-status .val{font-size:13.5px;font-weight:600;color:#9FD3D3}
.hero-status .val.amber{color:#E3B183}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:76px 0}
.section-alt{background:var(--primary-soft-2)}
.section-white{background:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--amber);
  letter-spacing:1px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);border-radius:2px}
.section-head h2{font-size:clamp(24px,2.6vw,33px);color:var(--ink);margin-bottom:16px}
.section-head p{font-size:16px;line-height:1.85;color:var(--muted);max-width:42em}

/* ---------- 安全机制 ---------- */
.mech-grid{
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:56px;
  align-items:start;
}
.mech-list{border-top:1px solid var(--line)}
.mech-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.mech-item:hover{background:rgba(231,240,240,.4)}
.num{
  font-size:15px;font-weight:700;color:var(--amber);
  letter-spacing:1px;padding-top:3px;
  font-variant-numeric:tabular-nums;
}
.mech-item h3{font-size:20px;margin-bottom:8px;color:var(--ink)}
.mech-item p{font-size:15px;line-height:1.8;color:var(--muted)}
.shield-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  padding:34px 26px 28px;
  text-align:center;
  position:sticky;
  top:104px;
}
.shield-card svg{width:170px;height:auto;margin:0 auto 18px;color:var(--primary)}
.shield-card h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.shield-card p{font-size:13.5px;line-height:1.8;color:var(--muted)}
.shield-card .shield-foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--stone);letter-spacing:.4px;
}

/* ---------- 权限与审计 ---------- */
.perm-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:48px;
  align-items:center;
}
.perm-figure{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  background:var(--primary-soft);
}
.perm-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 260ms ease-out}
.perm-figure:hover img{transform:scale(1.03)}
.perm-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:18px 20px;
  font-size:13px;color:#fff;
  background:linear-gradient(to top,rgba(14,42,46,.82),rgba(14,42,46,0));
}
.perm-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh);
  transition:box-shadow var(--t),transform var(--t);
}
.panel:hover{box-shadow:var(--sh-h);transform:translateY(-3px)}
.panel h3{font-size:18.5px;margin-bottom:6px}
.panel .panel-sub{font-size:13px;color:var(--stone);margin-bottom:16px}
.check-list li{
  position:relative;
  padding-left:28px;
  margin-bottom:12px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--muted);
}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{
  content:"";
  position:absolute;left:0;top:4px;
  width:16px;height:16px;
  border-radius:5px;
  border:1.5px solid rgba(23,96,106,.4);
  background:
    linear-gradient(45deg,transparent 45%,var(--primary) 45%,var(--primary) 58%,transparent 58%) 4px 6px/8px 8px no-repeat,
    linear-gradient(-45deg,transparent 45%,var(--primary) 45%,var(--primary) 58%,transparent 58%) 8px 6px/6px 6px no-repeat;
}
.panel strong{color:var(--ink);font-weight:600}

/* ---------- 合规说明 ---------- */
.compliance{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.quote-block{
  background:var(--primary-soft-2);
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:28px 30px;
}
.quote-block p{font-size:16px;line-height:1.9;color:var(--ink)}
.quote-block p + p{margin-top:14px;font-size:14.5px;color:var(--muted)}
.fact-list{display:grid;gap:14px}
.fact{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:18px 20px;
}
.fact .fact-tag{
  flex:0 0 auto;
  font-size:12px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);
  border-radius:var(--r-pill);
  padding:3px 12px;
  margin-top:2px;
}
.fact p{font-size:14.5px;line-height:1.75;color:var(--muted)}
.fact b{display:block;font-size:15px;color:var(--ink);font-weight:600;margin-bottom:2px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.faq-aside p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:22px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);background:transparent}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  background:none;
  border:0;
  padding:22px 4px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  position:relative;
  transition:color var(--t);
}
.faq-q::before{
  content:"";
  position:absolute;left:-16px;top:22px;bottom:22px;
  width:3px;border-radius:3px;
  background:transparent;
  transition:background var(--t);
}
.faq-q:hover{color:var(--primary)}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-item.is-open .faq-q::before{background:var(--primary)}
.faq-icon{
  flex:0 0 auto;
  position:relative;
  width:22px;height:22px;
  margin-top:3px;
  border:1px solid rgba(23,96,106,.3);
  border-radius:50%;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.5px}
.faq-icon::after{width:1.5px;height:10px;transition:opacity var(--t),transform var(--t)}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 240ms ease-out;
}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{
  padding:0 40px 24px 4px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- 关联分类 ---------- */
.crosslinks{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.link-card{
  display:flex;
  flex-direction:column;
  gap:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 24px 22px;
  box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--sh-h);border-color:rgba(23,96,106,.24)}
.link-card .tag{
  align-self:flex-start;
  font-size:12px;font-weight:600;
  color:var(--amber);
  letter-spacing:.6px;
}
.link-card h3{font-size:18.5px;color:var(--ink);transition:color var(--t)}
.link-card:hover h3{color:var(--primary)}
.link-card p{font-size:14px;line-height:1.75;color:var(--muted)}
.link-card .go{margin-top:6px;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.link-card .go .arrow{transition:transform var(--t)}
.link-card:hover .go .arrow{transform:translateX(3px)}

/* ---------- CTA 与表单 ---------- */
.cta-band{
  background:var(--primary-soft-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:80px 0;
}
.cta-inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.cta-copy h2{font-size:clamp(25px,2.7vw,34px);margin-bottom:16px}
.cta-copy p{font-size:15.5px;line-height:1.9;color:var(--muted);margin-bottom:26px}
.cta-meta{display:grid;gap:10px;font-size:14px;color:var(--stone)}
.cta-meta li{display:flex;gap:10px;align-items:baseline}
.cta-meta b{font-weight:600;color:var(--ink)}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  padding:32px 32px 28px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--stone);
  margin-bottom:8px;
  letter-spacing:.3px;
}
.field input,.field textarea{
  width:100%;
  font-family:inherit;
  font-size:15px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 14px;
  height:46px;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9AAEAE}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(23,96,106,.16);
}
.form-hint{font-size:12.5px;color:var(--stone);line-height:1.7;margin-top:14px}
.form-msg{
  display:none;
  margin-top:14px;
  font-size:13.5px;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:10px;
  padding:10px 14px;
}
.form-msg.is-on{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--footer);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .8fr .9fr 1.1fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff}
.footer-brand .brand-mark{width:36px;height:36px;color:#CFE4E4}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.48)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;max-width:320px;color:rgba(255,255,255,.66)}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;font-weight:600;letter-spacing:.3px}
.footer-col ul li{font-size:14px;line-height:2;color:rgba(255,255,255,.66)}
.footer-col a{color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:20px;
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .section{padding:80px 0}
  .section-tight{padding:64px 0}
  .hero-inner{gap:36px;padding:64px 0 60px}
  .mech-grid{gap:40px}
  .faq-grid{gap:40px}
  .cta-inner{gap:40px}
}
@media (max-width:991px){
  .site-header{top:12px;padding:0 16px}
  .nav-shell{height:60px;padding:0 12px 0 16px;gap:12px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta{display:none}
  .nav-links{
    position:absolute;
    left:0;right:0;
    top:72px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin:0;
    padding:12px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:20px;
    box-shadow:var(--sh-h);
    max-height:calc(100vh - 120px);
    overflow:auto;
  }
  body.nav-open .nav-links{display:flex}
  body.nav-open{overflow:hidden}
  .nav-links a{padding:13px 14px;border-radius:12px;font-size:15.5px}
  .nav-links a::after{display:none}
  .nav-links a:hover{background:var(--primary-soft-2)}
  .nav-links a.is-active{background:var(--primary-soft);color:var(--primary)}
  .nav-mobile-cta{
    display:flex;
    align-items:center;
    justify-content:center;
    height:48px;
    margin-top:8px;
    border-radius:var(--r-btn);
    background:var(--primary);
    color:#fff !important;
    font-weight:600;
  }
  .nav-mobile-cta:hover{background:var(--primary-dark)}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:56px 0 52px}
  .hero-status{max-width:520px}
  .mech-grid{grid-template-columns:1fr;gap:32px}
  .shield-card{position:static;max-width:420px}
  .perm-grid{grid-template-columns:1fr;gap:32px}
  .perm-cols{grid-template-columns:1fr}
  .compliance{grid-template-columns:1fr;gap:32px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .crosslinks{grid-template-columns:1fr 1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .breadcrumb{padding:18px 16px 0}
  .hero{border-radius:18px;margin-left:16px;margin-right:16px}
  .hero-inner{padding:44px 0 44px}
  .hero h1{margin:16px 0 14px}
  .hero-actions .btn{width:100%}
  .hero-points{gap:8px 16px;font-size:13px}
  .section-head{margin-bottom:32px}
  .mech-item{grid-template-columns:44px 1fr;gap:12px;padding:22px 0}
  .perm-cols{gap:18px}
  .panel{padding:22px 20px}
  .crosslinks{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px 20px 20px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-grid > div:first-child{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;gap:8px}
  .quote-block{padding:22px 20px}
  .faq-a p{padding-right:12px}
  .site-footer{padding:56px 0 24px}
}
@media (max-width:519px){
  body{font-size:16px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:9.5px;letter-spacing:1px}
  .brand-mark{width:30px;height:30px}
  .nav-shell{height:56px}
  .nav-links{top:68px}
  .hero-status{padding:20px 18px}
  .hero-status li{font-size:13.5px}
  .faq-q{font-size:15.5px;padding:18px 2px}
  .link-card{padding:20px}
  .panel h3{font-size:17px}
  .fact{flex-direction:column;gap:6px}
}

/* roulang page: category4 */
:root{
  --brand:#17606A;
  --brand-dark:#114C54;
  --brand-soft:#E7F0F0;
  --brand-soft-2:#EDF3F2;
  --slate:#47666B;
  --accent:#C97B3C;
  --ink:#17272B;
  --muted:#5A6F73;
  --danger:#B4472F;
  --bg:#F4F7F6;
  --white:#FFFFFF;
  --footer:#0E2A2E;
  --line:rgba(23,96,106,0.12);
  --line-strong:rgba(23,96,106,0.22);
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow:0 6px 18px rgba(14,42,46,0.06);
  --shadow-hover:0 14px 32px rgba(14,42,46,0.12);
  --shadow-lg:0 18px 44px rgba(14,42,46,0.14);
  --space:96px;
  --ease:cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--ink);line-height:1.3;}
p{margin:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;margin:0;}
button{cursor:pointer;}
:focus-visible{outline:3px solid rgba(23,96,106,0.28);outline-offset:2px;border-radius:6px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--space) 0;}
.section-alt{background:var(--brand-soft-2);}
.section-white{background:var(--white);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);text-transform:none;margin-bottom:14px;
}
.eyebrow::before{content:'';width:22px;height:2px;border-radius:2px;background:var(--accent);}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:38px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-lead{max-width:420px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:16px;z-index:80;padding:0 16px;}
.nav-shell{
  max-width:1180px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 12px 0 20px;
  background:rgba(255,255,255,0.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid rgba(23,96,106,0.08);
  border-radius:999px;
  box-shadow:var(--shadow);
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--shadow-hover);border-color:rgba(23,96,106,0.16);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand-dark);}
.brand:hover{color:var(--brand-dark);}
.brand-mark{width:34px;height:34px;color:var(--brand);flex:0 0 auto;}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.2;letter-spacing:.02em;}
.brand-sub{display:block;font-size:10px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;line-height:1.4;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:38px;
  padding:0 13px;border-radius:999px;font-size:15px;color:var(--ink);
  white-space:nowrap;transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a::after{
  content:'';position:absolute;left:13px;right:13px;bottom:5px;height:2px;
  border-radius:2px;background:transparent;transition:background .18s var(--ease);
}
.nav-links a:hover{color:var(--brand-dark);background:rgba(23,96,106,0.06);}
.nav-links a:hover::after{background:var(--accent);}
.nav-links a.is-active{color:var(--brand);font-weight:600;}
.nav-links a.is-active::after{background:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  text-decoration:none;transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(23,96,106,0.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:0 12px 26px rgba(23,96,106,0.28);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(23,96,106,0.45);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:#F1F7F6;color:var(--brand-dark);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;font-size:15px;}
.btn-link .arw{transition:transform .18s var(--ease);}
.btn-link:hover{color:var(--brand-dark);}
.btn-link:hover .arw{transform:translateX(3px);}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1.5px solid rgba(23,96,106,0.35);background:#fff;
  align-items:center;justify-content:center;flex:0 0 auto;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--brand);transition:background .18s var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{content:'';position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--brand);transition:transform .2s var(--ease);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.site-header.menu-open .nav-toggle span{background:transparent;}
.site-header.menu-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg);}
.site-header.menu-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg);}

.mobile-panel{
  display:none;max-width:1180px;margin:10px auto 0;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:14px;box-shadow:var(--shadow-hover);
}
.site-header.menu-open .mobile-panel{display:block;}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:12px;
  font-size:15.5px;color:var(--ink);
}
.mobile-panel a:hover{background:var(--brand-soft);color:var(--brand-dark);}
.mobile-panel a.is-active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
.mobile-panel .m-cta{margin-top:8px;}
.mobile-panel .btn{width:100%;}

/* ---------- Breadcrumb ---------- */
.crumbs{padding:22px 0 0;font-size:13px;color:var(--slate);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs a{color:var(--brand);}
.crumbs a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.crumbs .sep{color:rgba(71,102,107,0.55);}
.crumbs .current{color:var(--muted);}

/* ---------- Hero ---------- */
.hero-banner{position:relative;padding:26px 0 0;}
.hero-bg{
  position:absolute;top:0;left:0;right:0;height:520px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{content:'';position:absolute;inset:0;background:rgba(14,42,46,0.46);}
.hero-banner .wrap{position:relative;z-index:2;}
.hero-panel{
  max-width:880px;margin-top:210px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:clamp(26px,4vw,46px);
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:rgba(201,123,60,0.12);color:#A5602A;}
.hero-panel h1{
  font-size:clamp(30px,4vw,48px);font-weight:700;line-height:1.22;
  margin:18px 0 0;letter-spacing:-0.01em;
}
.hero-panel .hero-sub{
  margin-top:18px;font-size:clamp(15.5px,1.4vw,17.5px);line-height:1.85;
  color:var(--muted);max-width:42em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:0;margin-top:32px;padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-meta li{
  flex:1 1 0;min-width:150px;padding-right:20px;
  font-size:13.5px;color:var(--muted);line-height:1.6;
}
.hero-meta li + li{padding-left:20px;border-left:1px solid var(--line);}
.hero-meta strong{display:block;font-size:19px;font-weight:700;color:var(--brand-dark);margin-bottom:2px;}

/* ---------- Grid helpers ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.col-6{grid-column:span 6;}
.col-4{grid-column:span 4;}
.col-3{grid-column:span 3;}
.col-8{grid-column:span 8;}
.col-5{grid-column:span 5;}
.col-7{grid-column:span 7;}
.col-12{grid-column:span 12;}

/* ---------- SLA cards ---------- */
.sla-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.sla-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.sla-featured{grid-column:span 6;padding:0;overflow:hidden;}
.sla-media{position:relative;overflow:hidden;}
.sla-media img{width:100%;height:246px;object-fit:cover;transition:transform .4s var(--ease);}
.sla-featured:hover .sla-media img{transform:scale(1.03);}
.sla-body{padding:26px 28px 30px;display:flex;flex-direction:column;gap:12px;}
.sla-card h3{font-size:21px;}
.sla-card p{font-size:14.5px;line-height:1.8;color:var(--muted);}
.sla-metric{display:flex;align-items:baseline;gap:8px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.sla-metric strong{font-size:32px;font-weight:700;color:var(--accent);line-height:1;letter-spacing:-0.02em;}
.sla-metric span{font-size:13px;color:var(--muted);}
.sla-num{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
  color:var(--accent);letter-spacing:.06em;margin-bottom:6px;
}
.sla-num i{display:block;width:18px;height:2px;background:var(--accent);border-radius:2px;}
.sla-list{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.sla-list li{position:relative;padding-left:16px;font-size:14px;color:var(--slate);line-height:1.7;}
.sla-list li::before{content:'';position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--brand);opacity:.6;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px 28px;box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  font-size:15px;font-weight:700;letter-spacing:.02em;margin-bottom:18px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:14.5px;line-height:1.8;color:var(--muted);}
.step::after{
  content:'';position:absolute;right:-18px;top:52px;width:12px;height:1px;
  background:var(--line-strong);
}
.step:last-child::after{display:none;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-intro h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px;}
.faq-intro p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:24px;max-width:20em;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item[open]{border-color:rgba(23,96,106,0.3);box-shadow:var(--shadow);}
.faq-item[open]::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-dark);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s var(--ease);}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-answer{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- Contact / form ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.contact-info h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px;}
.contact-info p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:26px;}
.info-list{display:flex;flex-direction:column;gap:16px;}
.info-list li{display:flex;gap:12px;font-size:14.5px;color:var(--slate);line-height:1.7;}
.info-list .dot{flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px;}
.info-list strong{color:var(--ink);font-weight:600;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(24px,3vw,36px);box-shadow:var(--shadow);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field:last-of-type{margin-bottom:22px;}
.field label{font-size:13px;font-weight:600;color:var(--brand-dark);letter-spacing:.02em;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;color:var(--ink);font-size:15px;box-shadow:none;
  padding:0 14px;height:46px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#9BABAE;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,96,106,0.16);}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:14px;}

/* ---------- Related bar ---------- */
.related-bar{padding:8px 0 0;}
.related-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:14px 22px;box-shadow:var(--shadow);
}
.related-label{font-size:13px;font-weight:600;color:var(--slate);letter-spacing:.06em;}
.related-links{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:14px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.chip:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.chip.is-current{background:rgba(23,96,106,0.08);color:var(--slate);pointer-events:none;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--footer);color:#fff;padding:72px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{color:#fff;font-size:clamp(23px,2.6vw,30px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,0.72);font-size:15px;line-height:1.8;max-width:38em;}
.cta-band .btn-light{box-shadow:0 10px 24px rgba(0,0,0,0.18);}

/* ---------- Footer ---------- */
.site-footer{background:var(--footer);color:rgba(255,255,255,0.74);padding:72px 0 32px;}
.site-footer .wrap{max-width:1200px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px;}
.site-footer .brand-mark{width:34px;height:34px;color:#8FC6CA;}
.site-footer .brand-name{display:block;font-size:17px;font-weight:700;line-height:1.2;}
.site-footer .brand-sub{display:block;font-size:10px;letter-spacing:.16em;color:rgba(255,255,255,0.5);text-transform:uppercase;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,0.62);max-width:22em;}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.62);}
.footer-col a{color:rgba(255,255,255,0.72);font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,0.12);
  font-size:13px;color:rgba(255,255,255,0.55);
}
.footer-bottom a{color:rgba(255,255,255,0.75);}
.footer-bottom a:hover{color:#fff;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  :root{--space:80px;}
  .faq-layout{gap:42px;}
  .contact-grid{gap:42px;}
}
@media (max-width:991px){
  :root{--space:64px;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-sm{display:none;}
  .nav-shell{gap:12px;padding:0 12px 0 16px;justify-content:space-between;}
  .hero-bg{height:420px;}
  .hero-panel{margin-top:170px;}
  .grid-12{grid-template-columns:repeat(6,1fr);}
  .col-6,.sla-featured{grid-column:span 6;}
  .col-4,.col-3{grid-column:span 3;}
  .col-8,.col-7,.col-5{grid-column:span 6;}
  .steps{grid-template-columns:1fr;gap:18px;}
  .step::after{display:none;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-intro p{max-width:none;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  :root{--space:52px;}
  body{font-size:16px;}
  .wrap{padding:0 16px;}
  .site-header{top:10px;padding:0 10px;}
  .nav-shell{height:60px;}
  .hero-bg{height:360px;}
  .hero-panel{margin-top:140px;padding:24px;}
  .hero-meta li{flex:1 1 100%;padding:0 0 14px;}
  .hero-meta li + li{padding-left:0;padding-top:14px;border-left:0;border-top:1px solid var(--line);}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .grid-12{grid-template-columns:1fr;gap:18px;}
  .col-6,.col-4,.col-3,.col-8,.col-7,.col-5,.col-12,.sla-featured{grid-column:span 1;}
  .sla-media img{height:200px;}
  .sla-card{padding:24px;}
  .sla-body{padding:22px 24px 26px;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .related-inner{border-radius:20px;padding:16px 18px;}
  .cta-band{padding:52px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:52px 0 26px;}
  .footer-bottom{flex-direction:column;margin-top:32px;}
  .faq-item summary{font-size:15.5px;padding:18px;}
  .faq-answer{padding:0 18px 18px;}
}
@media (max-width:479px){
  .brand-name{font-size:15.5px;}
  .brand-sub{font-size:9px;}
  .brand-mark{width:30px;height:30px;}
  .hero-panel h1{font-size:27px;}
  .hero-actions .btn{width:100%;}
  .sla-metric strong{font-size:28px;}
}