/* roulang page: index */
:root{
  --brand:#155E7E;
  --brand-deep:#0E4761;
  --brand-soft:#EAF3F7;
  --accent:#2FA79E;
  --warm:#DE8A4B;
  --ink:#17262F;
  --ink-2:#526673;
  --line:#E1EAF0;
  --bg:#F6F9FB;
  --card:#FFFFFF;
  --ok:#2E8B6B;
  --warn:#C98A2E;
  --err:#C0503F;
  --shadow-1:0 2px 8px rgba(14,71,97,.06);
  --shadow-2:0 10px 28px rgba(14,71,97,.10);
  --shadow-3:0 18px 44px rgba(14,71,97,.16);
  --r-card:14px;
  --r-media:12px;
  --r-btn:10px;
  --nav-h:76px;
  --bs-body-color:#17262F;
  --bs-body-bg:#FFFFFF;
  --bs-primary:#155E7E;
  --bs-border-color:#E1EAF0;
  --bs-link-color:#155E7E;
  --bs-link-hover-color:#0E4761;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  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 .2s ease}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;letter-spacing:0;color:var(--ink)}
h1{font-size:clamp(28px,3.2vw,46px);line-height:1.25;font-weight:700}
h2{font-size:clamp(22px,2.2vw,32px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.bg-soft{background:var(--brand-soft)}
.bg-white{background:#fff}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.22);
  transition:height .26s ease,background .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.site-header.is-stuck{
  height:64px;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;white-space:nowrap}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;flex:0 0 auto;
}
.is-stuck .brand{color:var(--ink)}
.is-stuck .brand:hover{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:28px;margin:0}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  color:rgba(255,255,255,.92);font-size:15px;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.is-stuck .nav-links a{color:var(--ink-2)}
.is-stuck .nav-links a:hover,.is-stuck .nav-links a.active{color:var(--brand)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-icon{
  width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.32);color:#fff;font-size:16px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-icon:hover{background:rgba(255,255,255,.22);color:#fff}
.is-stuck .nav-icon{background:#fff;border-color:var(--line);color:var(--brand)}
.is-stuck .nav-icon:hover{background:var(--brand-soft);color:var(--brand)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  background:#fff;color:var(--brand);border:1px solid #fff;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.nav-cta:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.nav-cta:active{transform:none}
.is-stuck .nav-cta{background:var(--brand);color:#fff;border-color:var(--brand)}
.is-stuck .nav-cta:hover{background:var(--brand-deep);color:#fff}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.32);color:#fff;font-size:20px;
}
.is-stuck .nav-toggle{background:#fff;border-color:var(--line);color:var(--brand)}
.drawer{
  position:fixed;inset:0;z-index:1050;background:#fff;padding:22px 24px 40px;
  transform:translateY(-12px);opacity:0;visibility:hidden;overflow-y:auto;
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
}
.drawer.open{opacity:1;visibility:visible;transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-head .brand{color:var(--ink)}
.drawer-close{width:40px;height:40px;border-radius:10px;background:var(--brand-soft);border:1px solid var(--line);color:var(--brand);font-size:18px}
.drawer-links{display:flex;flex-direction:column;margin:18px 0 24px}
.drawer-links a{padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink);font-size:16px;font-weight:500}
.drawer-links a.active{color:var(--brand);font-weight:600}
.drawer-cta{display:block;text-align:center}
.drawer-meta{margin-top:22px;font-size:13px;color:var(--ink-2);line-height:1.9}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s cubic-bezier(.22,.61,.36,1),color .2s,transform .2s,box-shadow .2s,border-color .2s;
}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(21,94,126,.08);color:var(--brand-deep);transform:translateY(-2px)}
.btn-glass{background:rgba(255,255,255,.92);color:var(--brand);border-color:rgba(255,255,255,.92)}
.btn-glass:hover{background:#fff;color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-3)}
.btn-outline-light-2{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7)}
.btn-outline-light-2:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.btn-brand:active,.btn-ghost:active,.btn-glass:active,.btn-outline-light-2:active{transform:none}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand);position:relative}
.link-more i{transition:transform .24s ease}
.link-more:hover i{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  min-height:660px;display:flex;align-items:center;
  padding:calc(var(--nav-h) + 74px) 0 96px;
  background:var(--brand-deep) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,71,97,.88) 0%,rgba(14,71,97,.62) 48%,rgba(21,94,126,.28) 100%);
}
.hero::after{
  content:"";position:absolute;right:-80px;bottom:-60px;width:520px;height:520px;opacity:.08;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:44px 44px;
  transform:rotate(-8deg);
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,620px) minmax(0,1fr);gap:48px;align-items:end}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);color:#fff;
}
.hero h1{color:#fff;margin:20px 0 18px}
.hero-sub{color:rgba(255,255,255,.86);font-size:17px;line-height:1.8;max-width:580px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;color:rgba(255,255,255,.85);font-size:14px}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust i{color:var(--accent);font-size:16px}
.hero-side{display:flex;justify-content:flex-end;align-items:flex-end}
.hero-card{
  width:320px;padding:24px;border-radius:var(--r-card);color:#fff;
  background:rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.22);
  box-shadow:var(--shadow-3);
}
.hero-card h4{color:#fff;font-size:15px;margin-bottom:6px}
.hero-card .hc-note{font-size:12px;color:rgba(255,255,255,.72);margin-bottom:16px}
.hero-card ul{display:flex;flex-direction:column;gap:12px}
.hero-card li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:rgba(255,255,255,.92)}
.hero-card li b{font-weight:600;font-variant-numeric:tabular-nums}
.dot-ok{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#DFF5F1}
.dot-ok::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(47,167,158,.18)}

/* ---------- 通用板块头 ---------- */
.sec-head{margin-bottom:44px;max-width:720px}
.sec-title{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.sec-title::before{content:"";width:12px;height:12px;border-radius:3px;background:var(--brand);flex:0 0 auto}
.sec-desc{color:var(--ink-2);font-size:16px;line-height:1.8}
.eyebrow{font-size:13px;color:var(--accent);font-weight:600;letter-spacing:.02em;margin-bottom:10px}

/* ---------- 服务卡片 ---------- */
.svc-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.svc-left h2{margin-bottom:16px}
.svc-left p{color:var(--ink-2);font-size:16px}
.svc-left .link-more{margin-top:20px}
.svc-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card-base{
  background:var(--card);border:1px solid transparent;border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card-base:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE3EC}
.svc-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:18px;
}
.svc-card h3{font-size:18px;margin-bottom:10px}
.svc-card p{font-size:15px;line-height:1.7;color:var(--ink-2);margin-bottom:16px}
.svc-card .link-more{font-size:14px}

/* ---------- 数据带 ---------- */
.stats{background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);padding:64px 0;color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stat-item{padding:0 26px;border-left:1px solid rgba(255,255,255,.14)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:40px;font-weight:700;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.stat-num small{font-size:18px;font-weight:600;margin-left:4px;color:var(--warm)}
.stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:10px}
.stats-note{margin-top:28px;font-size:12px;color:rgba(255,255,255,.6)}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px}
.case-main{position:relative;border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease}
.case-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.case-main .case-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,var(--brand),var(--accent))}
.case-main .case-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.case-main:hover .case-media img{transform:scale(1.03)}
.case-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  padding:6px 14px;border-radius:999px;font-size:12px;color:var(--brand);
  background:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.case-main .case-body{padding:24px}
.case-main h3{margin-bottom:10px;font-size:20px}
.case-main p{font-size:15px;color:var(--ink-2);line-height:1.7}
.case-side{display:grid;grid-template-rows:repeat(2,minmax(0,1fr));gap:24px}
.case-row{display:grid;grid-template-columns:40% minmax(0,1fr);gap:20px;padding:18px;align-items:center}
.case-row .case-thumb{border-radius:var(--r-media);overflow:hidden;aspect-ratio:4/3;background:linear-gradient(135deg,var(--brand),var(--accent))}
.case-row .case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.case-row:hover .case-thumb img{transform:scale(1.03)}
.case-row h4{margin-bottom:8px;font-size:17px}
.case-row p{font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand);
}
.case-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2)}
.case-foot i{color:var(--brand);transition:transform .24s ease}
.case-row:hover .case-foot i{transform:translateX(4px)}

/* ---------- 方案 zig-zag ---------- */
.plan{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px;align-items:center}
.plan + .plan{margin-top:72px;padding-top:72px;border-top:1px solid var(--line)}
.plan.reverse .plan-media{order:2}
.plan-media{border-radius:var(--r-media);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,var(--brand),var(--accent));box-shadow:var(--shadow-1)}
.plan-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.plan-media:hover img{transform:scale(1.03)}
.plan-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;margin-bottom:20px;
}
.plan-body h3{margin-bottom:14px;font-size:22px}
.plan-body>p{color:var(--ink-2);font-size:16px;margin-bottom:20px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink)}
.check-list i{color:var(--accent);font-size:16px;margin-top:4px;flex:0 0 auto}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  background:var(--card);border:1px solid transparent;border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  align-self:start;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE3EC}
.news-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--brand),var(--accent))}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-cat{
  position:absolute;left:12px;top:12px;
  padding:4px 12px;border-radius:12px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.88);color:var(--brand);
}
.news-body{padding:22px}
.news-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--ink)}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{font-size:15px;line-height:1.7;color:var(--ink-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);padding-top:14px;border-top:1px solid var(--line)}
.news-foot i{color:var(--brand);transition:transform .24s ease}
.news-card:hover .news-foot i{transform:translateX(4px)}
.news-empty{
  min-height:220px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  color:var(--ink-2);font-size:15px;text-align:center;padding:32px;
}
.news-empty i{font-size:28px;color:var(--brand)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.faq-left h2{margin-bottom:16px}
.faq-left p{color:var(--ink-2);font-size:16px;margin-bottom:20px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:#CFE3EC;box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 56px 18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:center;transition:transform .24s ease;
}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:12px;height:12px;margin-top:-6px;
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;
  background-size:12px 2px,2px 12px;
  background-position:center center,center center;
  transition:transform .24s ease;
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- 联系转化 ---------- */
.cta-section{padding:96px 0;background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.cta-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.cta-info h2{margin-bottom:16px}
.cta-info>p{color:var(--ink-2);font-size:16px;margin-bottom:28px}
.contact-list{display:flex;flex-direction:column;gap:18px}
.contact-list li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--ink)}
.contact-list i{
  width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto;
}
.contact-list b{display:block;font-size:13px;color:var(--ink-2);font-weight:600}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-2);padding:28px}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-note-top{font-size:14px;color:var(--ink-2);margin-bottom:22px}
.form-label{font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.req{color:var(--err);margin-left:2px}
.form-control,.form-select{
  height:48px;border:1px solid #D8E4EB;border-radius:var(--r-btn);
  font-size:15px;color:var(--ink);padding:0 14px;background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{height:auto;min-height:112px;padding:12px 14px;line-height:1.7}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,94,126,.14);outline:none;
}
.form-check-input{border-color:#C9DCE6;width:18px;height:18px;margin-top:.2em}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(21,94,126,.14);border-color:var(--brand)}
.form-check-label{font-size:13px;color:var(--ink-2);line-height:1.7}
.form-tip{font-size:12px;color:var(--ink-2);margin-top:14px;line-height:1.7}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:10px;font-size:14px;background:var(--brand-soft);color:var(--brand-deep);border:1px solid #CFE3EC}
.form-msg.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,2fr) minmax(0,2.4fr) minmax(0,3.6fr);gap:40px}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.f-brand .brand-mark{background:rgba(255,255,255,.14)}
.f-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:20px;max-width:320px}
.f-qr{width:96px;height:96px;border-radius:12px;border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;text-align:center;font-size:11px;line-height:1.6;color:rgba(255,255,255,.55);padding:8px}
.f-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.f-links{display:flex;flex-direction:column;gap:10px}
.f-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s ease,transform .2s ease;display:inline-block}
.f-links a:hover{color:#fff;transform:translateX(2px)}
.f-contact{display:flex;flex-direction:column;gap:12px;font-size:14px}
.f-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.72)}
.f-contact i{color:var(--accent);margin-top:4px;flex:0 0 auto}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .hero{min-height:620px}
  .hero-card{width:300px}
}
@media (max-width:1199.98px){
  .section{padding:80px 0}
  .hero{min-height:560px;padding-top:calc(var(--nav-h) + 64px)}
  .hero-grid{grid-template-columns:1fr}
  .hero-side{display:none}
  .svc-grid{grid-template-columns:1fr;gap:36px}
  .faq-grid,.cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-icon{display:none}
  .section{padding:64px 0}
  .hero{padding:calc(var(--nav-h) + 56px) 0 72px;min-height:auto}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .case-grid{grid-template-columns:1fr}
  .case-side{grid-template-rows:auto auto}
  .plan{grid-template-columns:1fr;gap:28px}
  .plan.reverse .plan-media{order:0}
  .plan + .plan{margin-top:56px;padding-top:56px}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 0}
  .stat-item{border-left:0;padding:0}
  .stat-item:nth-child(even){padding-left:24px;border-left:1px solid rgba(255,255,255,.14)}
  .stats{padding:56px 0}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:48px 0}
  .wrap{padding:0 20px}
  .svc-cards{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .hero-actions .btn-brand,.hero-actions .btn-glass{width:100%}
  .hero-trust{gap:16px 24px;font-size:13px}
  .case-row{grid-template-columns:1fr;gap:14px}
  .case-row .case-thumb{aspect-ratio:16/9}
  .form-card{padding:22px}
  .news-head{align-items:flex-start}
  .stat-num{font-size:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:575.98px){
  .hero{padding-top:calc(var(--nav-h) + 48px);padding-bottom:56px;background:linear-gradient(160deg,var(--brand-deep),var(--brand))}
  .hero::after{display:none}
  .card-base,.form-card{padding:20px}
  .brand{font-size:16px}
  .brand-mark{width:30px;height:30px;font-size:15px}
  .news-body{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-property:color,background-color,border-color,box-shadow !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#155E7E;
  --brand-deep:#0E4761;
  --brand-soft:#EAF3F7;
  --accent:#2FA79E;
  --warm:#DE8A4B;
  --ink:#17262F;
  --ink-2:#526673;
  --line:#E1EAF0;
  --bg:#F6F9FB;
  --card:#FFFFFF;
  --ok:#2E8B6B;
  --err:#C0503F;
  --shadow-1:0 2px 8px rgba(14,71,97,.06);
  --shadow-2:0 10px 28px rgba(14,71,97,.10);
  --shadow-3:0 18px 44px rgba(14,71,97,.16);
  --r-card:14px;
  --r-media:12px;
  --r-btn:10px;
  --bs-body-color:#17262F;
  --bs-body-bg:#F6F9FB;
  --bs-primary:#155E7E;
  --bs-border-radius:10px;
  --bs-link-color:#155E7E;
  --bs-link-hover-color:#0E4761;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,"Segoe UI",Arial,sans-serif;
  font-size:17px;
  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(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
ul,ol{padding-left:1.2em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container,.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost,.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  cursor:pointer;transition:background .2s cubic-bezier(.22,.61,.36,1),transform .2s cubic-bezier(.22,.61,.36,1),box-shadow .2s cubic-bezier(.22,.61,.36,1),color .2s,border-color .2s;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(21,94,126,.08);color:var(--brand-deep);border-color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-glass{background:rgba(255,255,255,.94);color:var(--brand);box-shadow:var(--shadow-2);}
.btn-glass:hover{background:#fff;color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-3);}
.btn-sm{padding:11px 20px;font-size:14px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  backdrop-filter:blur(12px) saturate(150%);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(14,71,97,.05);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);font-weight:700;font-size:18px;letter-spacing:0;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#fff;font-size:18px;
}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0;}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.icon-btn:hover{color:var(--brand);border-color:#CFE3EC;background:var(--brand-soft);}
.burger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:20px;align-items:center;justify-content:center;cursor:pointer;
}
.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:0;bottom:0;z-index:120;
  background:#fff;padding:24px;overflow-y:auto;
  transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;
}
.mobile-panel.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.mobile-links{list-style:none;margin:0 0 24px;padding:0;}
.mobile-links li{border-bottom:1px solid var(--line);}
.mobile-links a{display:block;padding:15px 4px;font-size:16px;color:var(--ink);}
.mobile-links a.active{color:var(--brand);font-weight:600;}
.mobile-contact{border-top:1px solid var(--line);padding-top:18px;color:var(--ink-2);font-size:14px;line-height:2;}
.mobile-contact i{color:var(--accent);margin-right:8px;}

/* ---------- page head ---------- */
.page-head{
  position:relative;overflow:hidden;
  background:
    linear-gradient(100deg,rgba(234,243,247,.96) 0%,rgba(234,243,247,.86) 55%,rgba(234,243,247,.62) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  padding:56px 0 48px;
  border-bottom:1px solid var(--line);
}
.crumbs{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:0 0 18px;padding:0;font-size:13px;color:var(--ink-2);}
.crumbs li{display:inline-flex;align-items:center;gap:6px;}
.crumbs li+li::before{content:"›";color:#9DB3BE;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs li:last-child{color:var(--brand);font-weight:600;}
.page-head h1{
  font-size:clamp(26px,2.9vw,40px);line-height:1.3;font-weight:700;
  margin:0 0 18px;max-width:880px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.head-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13px;color:var(--ink-2);}
.head-meta span{display:inline-flex;align-items:center;gap:6px;}
.head-meta i{color:var(--accent);}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
  background:#fff;color:var(--brand);border:1px solid #CFE3EC;
}

/* ---------- article layout ---------- */
.article-wrap{padding:56px 0 72px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;}
.article-card{
  background:var(--card);border:1px solid transparent;border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:36px 40px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink);}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:clamp(21px,2vw,27px);line-height:1.4;font-weight:700;
  margin:36px 0 16px;padding-left:16px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:20px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;margin:28px 0 12px;color:var(--ink);}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:1.3em;}
.article-body li{margin-bottom:8px;}
.article-body ul li::marker{color:var(--accent);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;border-left:3px solid var(--brand);
  background:var(--brand-soft);border-radius:14px;color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-media);box-shadow:var(--shadow-1);margin:20px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:8px;}
.article-body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;margin:22px 0;font-size:15px;white-space:nowrap;
}
.article-body th{background:var(--brand-soft);color:var(--ink);font-weight:600;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body tbody tr:nth-child(even){background:rgba(21,94,126,.03);}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(21,94,126,.35);}
.article-body a:hover{border-bottom-color:var(--brand-deep);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;border:1px dashed var(--line);border-radius:14px;background:var(--bg);padding:32px 20px;
}
.empty-state i{font-size:32px;color:#B6CBD6;}
.empty-state p{margin:0;color:var(--ink-2);font-size:15px;}
.empty-state h2{font-size:20px;margin:0;}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line);}
.tag-pill{
  display:inline-flex;align-items:center;font-size:13px;font-weight:500;
  padding:6px 14px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  border:1px solid transparent;transition:background .2s,border-color .2s;
}
.tag-pill:hover{background:#fff;border-color:#CFE3EC;color:var(--brand-deep);}
.article-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:24px;}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:var(--card);border:1px solid transparent;border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:24px;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.side-card:hover{border-color:#CFE3EC;box-shadow:var(--shadow-2);}
.side-title{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600;margin:0 0 16px;color:var(--ink);}
.side-title::before{content:"";width:12px;height:12px;border-radius:3px;background:var(--brand);flex-shrink:0;}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li+li{border-top:1px dashed var(--line);}
.side-list a{
  display:flex;align-items:center;gap:10px;padding:11px 0;font-size:14.5px;color:var(--ink-2);
  transition:color .2s,padding-left .2s;
}
.side-list a i{color:var(--accent);font-size:13px;flex-shrink:0;}
.side-list a:hover{color:var(--brand);padding-left:4px;}
.side-cta{
  background:linear-gradient(150deg,var(--brand-deep),var(--brand));
  border-radius:var(--r-card);padding:26px 24px;color:#fff;box-shadow:var(--shadow-2);
}
.side-cta h3{font-size:18px;margin:0 0 10px;color:#fff;}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.78);margin:0 0 18px;}
.side-cta .btn-glass{width:100%;padding:13px 18px;}
.side-note{font-size:12px;color:rgba(255,255,255,.62);margin-top:12px;line-height:1.7;}

/* ---------- related ---------- */
.related{padding:0 0 72px;}
.section-head{margin-bottom:28px;}
.section-head h2{
  display:flex;align-items:center;gap:10px;
  font-size:clamp(21px,2vw,27px);font-weight:700;margin:0 0 10px;color:var(--ink);
}
.section-head h2::before{content:"";width:12px;height:12px;border-radius:3px;background:var(--brand);flex-shrink:0;}
.section-head p{margin:0;color:var(--ink-2);font-size:15px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.info-card{
  display:flex;flex-direction:column;background:var(--card);border-radius:var(--r-card);
  border:1px solid transparent;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.info-card:hover{transform:translateY(-2px);border-color:#CFE3EC;box-shadow:var(--shadow-2);}
.info-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#155E7E,#2FA79E);}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.info-card:hover .thumb img{transform:scale(1.03);}
.info-card .thumb .badge-cat{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.9);}
.info-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.info-card h3{font-size:17px;line-height:1.5;font-weight:600;margin:0;color:var(--ink);}
.info-card h3 a{color:inherit;}
.info-card h3 a:hover{color:var(--brand);}
.info-card p{font-size:14.5px;line-height:1.7;color:var(--ink-2);margin:0;}
.card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);}
.card-foot i{color:var(--brand);transition:transform .2s;}
.info-card:hover .card-foot i{transform:translateX(4px);}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--brand-deep),var(--brand));
  padding:64px 0;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,167,158,.35),transparent 68%);
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;position:relative;z-index:1;}
.cta-inner h2{font-size:clamp(21px,2.2vw,29px);margin:0 0 10px;color:#fff;}
.cta-inner p{margin:0;color:rgba(255,255,255,.78);font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-line:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:#0B2C3B;color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px;line-height:1.8;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.f-brand .brand-mark{width:36px;height:36px;}
.f-desc{margin:0 0 18px;color:rgba(255,255,255,.66);max-width:320px;}
.f-qr{
  width:96px;height:96px;border-radius:12px;border:1px dashed rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:rgba(255,255,255,.6);line-height:1.6;
}
.f-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s,transform .2s;}
.f-links a:hover{color:#fff;transform:translateX(2px);}
.f-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.f-contact li{display:flex;align-items:flex-start;gap:10px;color:rgba(255,255,255,.72);}
.f-contact i{color:var(--accent);margin-top:4px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:26px;}
  .article-card{padding:32px 32px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-actions .btn-brand{display:none;}
  .burger{display:inline-flex;}
  .mobile-panel{display:block;}
  .article-grid{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .side-cta{grid-column:1/-1;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .nav-inner{height:64px;gap:12px;}
  .brand{font-size:16px;}
  .brand-mark{width:32px;height:32px;font-size:16px;}
  .page-head{padding:40px 0 36px;}
  .article-wrap{padding:36px 0 56px;}
  .article-card{padding:24px 20px;}
  .article-body{font-size:16px;line-height:1.85;}
  .sidebar{grid-template-columns:minmax(0,1fr);}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .btn-brand,.btn-ghost,.btn-glass{width:100%;}
  .head-meta{gap:12px;}
  .related{padding-bottom:52px;}
  .cta-band{padding:48px 0;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .f-qr{display:none;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .container,.wrap{padding-left:16px;padding-right:16px;}
  .brand-text{max-width:170px;overflow:hidden;text-overflow:ellipsis;}
  .article-body h2{padding-left:14px;}
  .article-body table{font-size:14px;}
  .article-foot{flex-direction:column;align-items:stretch;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .info-card:hover,.btn-brand:hover,.btn-ghost:hover,.btn-glass:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand:#155E7E;
  --brand-deep:#0E4761;
  --brand-soft:#EAF3F7;
  --accent:#2FA79E;
  --warm:#DE8A4B;
  --ink:#17262F;
  --ink-2:#526673;
  --line:#E1EAF0;
  --line-hover:#CFE3EC;
  --bg:#F6F9FB;
  --card:#FFFFFF;
  --ok:#2E8B6B;
  --warn:#C98A2E;
  --err:#C0503F;
  --r-card:14px;
  --r-media:12px;
  --r-btn:10px;
  --r-icon:12px;
  --shadow-1:0 2px 8px rgba(14,71,97,.06);
  --shadow-2:0 10px 28px rgba(14,71,97,.10);
  --shadow-3:0 18px 44px rgba(14,71,97,.16);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#155E7E;
  --bs-body-color:#17262F;
  --bs-body-bg:#F6F9FB;
  --bs-border-color:#E1EAF0;
  --bs-border-radius:10px;
  --bs-link-color:#155E7E;
  --bs-link-hover-color:#0E4761;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,"Segoe UI",Arial,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,"Segoe UI",Arial,sans-serif;
  font-size:17px;
  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 .2s var(--ease)}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(47,167,158,.22)}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:background .26s var(--ease),box-shadow .26s var(--ease);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--ink);
  font-weight:700;
  font-size:17px;
  letter-spacing:0;
}
.logo:hover{color:var(--brand)}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-icon);
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#fff;
  font-size:19px;
  flex-shrink:0;
}
.logo-text{white-space:nowrap}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 0 0 auto;
}
.nav-links li{position:relative}
.nav-links a{
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:8px;
  position:relative;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:rgba(21,94,126,.05)}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  border-radius:10px;
  font-size:16px;
  cursor:pointer;
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--line-hover);box-shadow:var(--shadow-1)}
.nav-toggle{display:none}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  line-height:1.4;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn i{font-size:15px}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(21,94,126,.08);color:var(--brand-deep);border-color:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(14,71,97,.42);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
  z-index:1040;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(360px,88vw);
  height:100%;
  background:#fff;
  z-index:1050;
  display:flex;
  flex-direction:column;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  box-shadow:var(--shadow-3);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
  padding:18px 20px;
  border-bottom:1px solid var(--line);
}
.drawer-head .logo{font-size:15px}
.drawer-body{padding:12px 12px 4px}
.drawer-body a{
  display:block;
  padding:13px 14px;
  border-radius:10px;
  color:var(--ink);
  font-size:16px;
  font-weight:500;
}
.drawer-body a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-body a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-foot{
  margin-top:auto;
  padding:20px;
  border-top:1px solid var(--line);
  background:var(--bg);
}
.drawer-foot .btn{width:100%}
.drawer-contact{
  margin-top:16px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.9;
}
.drawer-contact span{display:block}

/* ============ 内页页头 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(100deg,rgba(14,71,97,.92) 0%,rgba(14,71,97,.74) 52%,rgba(21,94,126,.5) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  color:#fff;
  padding:72px 0 64px;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
  mask-image:linear-gradient(90deg,transparent 0%,#000 60%);
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 60%);
}
.page-hero .wrap{position:relative;z-index:2}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  line-height:1.6;
  color:rgba(255,255,255,.78);
  margin-bottom:22px;
}
.crumbs a{color:rgba(255,255,255,.82)}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.6}
.crumbs .current{color:#fff;font-weight:600}

.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  backdrop-filter:blur(10px);
  font-size:13px;
  font-weight:500;
  color:#fff;
  margin-bottom:20px;
}
.hero-badge i{color:#8FE3D8}
.page-hero h1{
  font-size:clamp(28px,3.2vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:0;
  max-width:760px;
  margin-bottom:18px;
}
.page-hero h1 .h1-accent{color:#9FE6DC}
.page-hero .hero-lead{
  max-width:720px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
}

/* 分类互链 */
.cat-bar{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:3;
}
.cat-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:18px 0;
}
.cat-pills a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  font-weight:500;
  color:var(--ink-2);
  transition:all .2s var(--ease);
}
.cat-pills a:hover{
  color:var(--brand);
  border-color:var(--line-hover);
  background:var(--brand-soft);
  transform:translateY(-1px);
}
.cat-pills a.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:var(--shadow-1);
}
.cat-pills a.is-active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--soft{background:var(--brand-soft)}
.section--white{background:#fff}
.sec-head{margin-bottom:48px;max-width:720px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  letter-spacing:.02em;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:12px;height:12px;
  border-radius:3px;
  background:var(--accent);
  flex-shrink:0;
}
h2.sec-title{
  font-size:clamp(22px,2.2vw,32px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:0;
  color:var(--ink);
}
.sec-desc{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
}
.sq-bullet{
  width:12px;height:12px;border-radius:3px;
  background:var(--brand);
  display:inline-block;
  margin-right:12px;
  flex-shrink:0;
}

/* 左文右图 */
.split{
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:56px;
  align-items:center;
}
.split-copy h2{margin-bottom:18px}
.split-copy p{
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
  margin-bottom:16px;
}
.check-list{margin:26px 0 30px}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:11px 0;
  font-size:15.5px;
  line-height:1.7;
  color:var(--ink);
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list i{
  color:var(--accent);
  font-size:16px;
  margin-top:3px;
  flex-shrink:0;
}
.split-actions{display:flex;flex-wrap:wrap;gap:12px}

.split-media{position:relative}
.media-frame{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  background:linear-gradient(135deg,#155E7E,#2FA79E);
  aspect-ratio:4/3;
}
.media-frame img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.media-frame:hover img{transform:scale(1.03)}
.media-tag{
  position:absolute;
  left:16px;bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}
.media-note{
  position:absolute;
  right:-18px;top:-18px;
  background:#fff;
  border-radius:var(--r-card);
  box-shadow:var(--shadow-2);
  padding:16px 20px;
  border:1px solid var(--line);
  min-width:150px;
}
.media-note .n{
  font-size:26px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.media-note .t{font-size:13px;color:var(--ink-2);margin-top:2px}

/* 2×2 要点卡 */
.point-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.point-card{
  background:#fff;
  border:1px solid transparent;
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.point-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:var(--line-hover);
}
.icon-block{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-icon);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:20px;
  margin-bottom:16px;
}
.icon-block.is-accent{background:rgba(47,167,158,.12);color:var(--accent)}
.point-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:8px;
}
.point-card p{
  font-size:15px;
  line-height:1.7;
  color:var(--ink-2);
}
.point-card .tag{
  display:inline-block;
  margin-top:16px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
}

/* 引用说明 */
.quote-block{
  max-width:820px;
  margin:0 auto;
  background:#fff;
  border-left:3px solid var(--brand);
  border-radius:var(--r-card);
  padding:32px 36px;
  box-shadow:var(--shadow-1);
  position:relative;
}
.quote-block p{
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-2);
}
.quote-block .q-mark{
  font-size:34px;
  color:var(--brand-soft);
  line-height:1;
  margin-bottom:8px;
  display:block;
}
.quote-block .q-src{
  margin-top:18px;
  font-size:13px;
  color:var(--ink-2);
  display:flex;
  align-items:center;
  gap:8px;
}
.quote-block .q-src::before{
  content:"";
  width:24px;height:1px;
  background:var(--line);
  display:inline-block;
}

/* CTA */
.cta-band{
  background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);
  border-radius:var(--r-card);
  padding:48px;
  color:#fff;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  box-shadow:var(--shadow-2);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:rgba(47,167,158,.22);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.2vw,30px);
  line-height:1.3;
  font-weight:700;
  margin-bottom:14px;
  position:relative;
  z-index:1;
}
.cta-band p{
  font-size:15.5px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
  position:relative;
  z-index:1;
}
.cta-side{position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.btn-glass{
  background:rgba(255,255,255,.94);
  color:var(--brand);
  border-color:transparent;
}
.btn-glass:hover{background:#fff;color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-glass:active{transform:translateY(0)}
.btn-outline-light2{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.55);
}
.btn-outline-light2:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-2px)}
.btn-outline-light2:active{transform:translateY(0)}
.cta-info{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  font-size:14px;
  color:rgba(255,255,255,.86);
}
.cta-info span{display:inline-flex;align-items:center;gap:8px}
.cta-info i{color:#8FE3D8}

/* 相关链接 */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rel-card{
  display:block;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  color:var(--ink);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rel-card:hover{
  color:var(--ink);
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:var(--line-hover);
}
.rel-card .rel-ico{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-icon);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:18px;
  margin-bottom:14px;
}
.rel-card h3{
  font-size:17px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:8px;
}
.rel-card p{
  font-size:14.5px;
  line-height:1.7;
  color:var(--ink-2);
  margin-bottom:14px;
}
.rel-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.rel-link i{transition:transform .2s var(--ease)}
.rel-card:hover .rel-link i{transform:translateX(4px)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.f-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:16px;
  margin-bottom:16px;
}
.f-brand .brand-mark{width:34px;height:34px;font-size:17px;background:rgba(255,255,255,.14)}
.f-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.7);
  max-width:300px;
  margin-bottom:20px;
}
.f-qr{
  width:96px;height:96px;
  border-radius:10px;
  border:1px dashed rgba(255,255,255,.3);
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.5;
  color:rgba(255,255,255,.55);
  background:rgba(255,255,255,.04);
}
.f-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.f-links{display:flex;flex-direction:column;gap:11px}
.f-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
  width:fit-content;
}
.f-links a:hover{color:#fff;transform:translateX(2px)}
.f-contact{display:flex;flex-direction:column;gap:12px}
.f-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.72);
}
.f-contact i{color:var(--accent);font-size:15px;margin-top:4px;flex-shrink:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .section{padding:80px 0}
  .split{gap:40px}
  .cta-band{padding:40px}
}
@media (max-width:991px){
  .nav-links,.nav-actions .icon-btn,.nav-actions .btn-brand{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:64px}
  .section{padding:64px 0}
  .page-hero{padding:56px 0 48px}
  .split{grid-template-columns:1fr;gap:36px}
  .split-media{order:-1}
  .media-note{right:12px;top:12px;padding:12px 16px;min-width:126px}
  .media-note .n{font-size:22px}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:36px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .point-grid{grid-template-columns:1fr}
  .quote-block{padding:24px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .f-qr{display:none}
}
@media (max-width:575px){
  .wrap{padding:0 20px}
  .section{padding:48px 0}
  .page-hero{padding:44px 0 40px}
  .btn{width:100%}
  .split-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .point-card{padding:22px}
  .cat-pills a{padding:8px 14px;font-size:13px}
  .page-hero .hero-lead{font-size:15px}
  .media-note{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .media-frame:hover img,.point-card:hover,.btn:hover,.rel-card:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --brand:#155E7E;
  --brand-deep:#0E4761;
  --brand-soft:#EAF3F7;
  --accent:#2FA79E;
  --warm:#DE8A4B;
  --ink:#17262F;
  --ink-2:#526673;
  --line:#E1EAF0;
  --bg:#F6F9FB;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-md:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(14,71,97,.06);
  --shadow-2:0 10px 28px rgba(14,71,97,.10);
  --shadow-3:0 18px 44px rgba(14,71,97,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#155E7E;
  --bs-body-color:#17262F;
  --bs-body-bg:#F6F9FB;
  --bs-border-radius:12px;
  --bs-link-color:#155E7E;
  --bs-link-hover-color:#0E4761;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,"Segoe UI",Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:0;color:var(--ink);}
h1{font-size:clamp(28px,3.2vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(22px,2.2vw,32px);line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px) saturate(150%);
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .26s var(--ease),background .26s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-2);background:rgba(255,255,255,.98);}
.nav-inner{
  height:76px;display:flex;align-items:center;gap:24px;
  transition:height .26s var(--ease);
}
.site-header.is-stuck .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;box-shadow:var(--shadow-1);
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap;}
.nav-main{margin-left:auto;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;
  font-size:15px;font-weight:500;color:var(--ink-2);border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);background:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:#CFE3EC;background:var(--brand-soft);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);cursor:pointer;
  transition:all .2s var(--ease);
}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;
  background:transparent;color:var(--brand);border:1px solid var(--brand);
  border-radius:var(--radius-btn);cursor:pointer;
  transition:all .2s var(--ease);
}
.btn-ghost:hover{background:rgba(21,94,126,.08);color:var(--brand-deep);border-color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 18px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:20px;
}
.mobile-panel{
  display:none;position:absolute;top:100%;left:0;right:0;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-3);padding:16px 24px 24px;
}
.mobile-panel.open{display:block;}
.mobile-panel a.m-link{
  display:block;padding:14px 4px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.m-link.active{color:var(--brand);font-weight:600;}
.mobile-panel .m-cta{margin-top:18px;width:100%;}
.mobile-panel .m-contact{margin-top:16px;font-size:13px;color:var(--ink-2);line-height:1.9;}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:calc(76px + 64px) 0 56px;
  background-image:
    linear-gradient(180deg,rgba(234,243,247,.96) 0%,rgba(246,249,251,.92) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(21,94,126,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.page-head .wrap{position:relative;z-index:1;}
.breadcrumb-nav{margin-bottom:20px;}
.breadcrumb-nav ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.breadcrumb-nav li+li::before{content:"›";margin-right:8px;color:#9FB4C0;}
.breadcrumb-nav a{color:var(--ink-2);}
.breadcrumb-nav a:hover{color:var(--brand);}
.breadcrumb-nav li[aria-current] {color:var(--brand);font-weight:600;}
.page-head h1{max-width:900px;margin-bottom:18px;}
.page-lead{max-width:760px;font-size:17px;line-height:1.85;color:var(--ink-2);}
.cat-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 18px;font-size:14px;font-weight:500;
  border:1px solid #CFE3EC;border-radius:999px;
  background:#fff;color:var(--brand);transition:all .2s var(--ease);
}
.pill:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-1px);}
.pill.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;box-shadow:var(--shadow-1);}
.pill.is-active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:48px;}
.sec-head h2{margin-bottom:14px;display:flex;align-items:center;gap:12px;}
.sec-head h2::before{
  content:"";width:12px;height:12px;border-radius:3px;
  background:var(--brand);flex-shrink:0;
}
.sec-head p{color:var(--ink-2);font-size:16px;}

/* ---------- 徽章网格 ---------- */
.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.sec-card{
  background:var(--card);border:1px solid transparent;border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;gap:14px;height:100%;
}
.sec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE3EC;}
.sec-icon{
  width:44px;height:44px;border-radius:12px;display:inline-flex;
  align-items:center;justify-content:center;font-size:21px;
  background:var(--brand-soft);color:var(--brand);
}
.sec-icon.accent{background:rgba(47,167,158,.12);color:var(--accent);}
.sec-card h3{font-size:18px;}
.sec-card p{font-size:15px;line-height:1.7;color:var(--ink-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.tag{
  display:inline-block;padding:3px 10px;font-size:12px;font-weight:500;
  border-radius:999px;background:var(--brand-soft);color:var(--brand);
}
.tag.warm{background:rgba(222,138,75,.12);color:#B96C31;}

/* ---------- 折叠条款 ---------- */
.two-col{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.col-head h2{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.col-head h2::before{content:"";width:12px;height:12px;border-radius:3px;background:var(--brand);flex-shrink:0;}
.col-head p{color:var(--ink-2);font-size:16px;margin-bottom:22px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand);}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}
.acc-list{display:flex;flex-direction:column;gap:12px;}
.acc-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.acc-item:hover{border-color:#CFE3EC;box-shadow:var(--shadow-1);}
.acc-btn{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:color .2s var(--ease),background .2s var(--ease);
  position:relative;
}
.acc-btn .num{
  font-size:13px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:6px;padding:2px 8px;flex-shrink:0;
}
.acc-btn .plus{
  margin-left:auto;font-size:18px;color:var(--ink-2);
  transition:transform .24s var(--ease),color .2s var(--ease);flex-shrink:0;
}
.acc-item.open .acc-btn{color:var(--brand);}
.acc-item.open .acc-btn::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--brand);border-radius:0 3px 3px 0;
}
.acc-item.open .acc-btn .plus{transform:rotate(45deg);color:var(--brand);}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.acc-body .inner{padding:0 22px 20px 60px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.acc-body .inner p+p{margin-top:10px;}

/* ---------- 自查区 ---------- */
.check-panel{
  display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:36px;box-shadow:var(--shadow-1);
}
.check-figure{margin:0;border-radius:var(--radius-md);overflow:hidden;background:linear-gradient(135deg,#155E7E,#2FA79E);}
.check-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .4s var(--ease);}
.check-panel:hover .check-figure img{transform:scale(1.03);}
.check-body h2{display:flex;align-items:center;gap:12px;margin-bottom:14px;font-size:clamp(22px,2vw,28px);}
.check-body h2::before{content:"";width:12px;height:12px;border-radius:3px;background:var(--brand);flex-shrink:0;}
.check-body>p{font-size:15px;line-height:1.8;color:var(--ink-2);margin-bottom:20px;}
.check-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--ink);}
.check-list li i{color:var(--accent);font-size:16px;line-height:1.7;flex-shrink:0;}

/* ---------- 相关链接 ---------- */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.link-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE3EC;}
.link-card .lc-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.link-card h3{font-size:17px;}
.link-card p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.link-card .lc-arrow{color:var(--brand);font-size:16px;transition:transform .2s var(--ease);}
.link-card:hover .lc-arrow{transform:translateX(4px);}

/* ---------- 转化区 ---------- */
.cta-band{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 100%);
  border-radius:18px;padding:56px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:50%;background:rgba(47,167,158,.18);
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{color:#fff;margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8;max-width:520px;}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:24px;}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.9);}
.cta-points i{color:#8FD9D2;}
.form-card{
  position:relative;z-index:1;background:#fff;border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-3);color:var(--ink);
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-note{font-size:13px;color:var(--ink-2);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:500;}
.field label .req{color:#C0503F;margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid #D8E4EB;border-radius:var(--radius-btn);
  padding:12px 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input,.field select{height:48px;}
.field textarea{resize:vertical;min-height:96px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,94,126,.14);
}
.form-card .btn-brand{width:100%;margin-top:6px;}
.form-tip{font-size:12px;color:var(--ink-2);line-height:1.7;margin-top:12px;}
.form-msg{display:none;margin-top:12px;font-size:13px;color:#2E8B6B;background:rgba(46,139,107,.08);border:1px solid rgba(46,139,107,.24);border-radius:10px;padding:10px 12px;}
.form-msg.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B2C3B;color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px;}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.f-brand .brand-mark{background:linear-gradient(135deg,var(--brand),var(--accent));}
.f-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.f-qr{
  margin-top:20px;width:110px;height:110px;border-radius:10px;
  border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;line-height:1.6;color:rgba(255,255,255,.55);
}
.f-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.f-links{display:flex;flex-direction:column;gap:12px;}
.f-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.f-links a:hover{color:#fff;transform:translateX(2px);}
.f-contact{display:flex;flex-direction:column;gap:14px;}
.f-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);}
.f-contact i{color:#8FD9D2;font-size:15px;line-height:1.7;flex-shrink:0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .section{padding:80px 0;}
  .nav-links a{padding:8px 9px;font-size:14px;}
}
@media (max-width:991px){
  .nav-main,.nav-actions .nav-cta,.nav-actions .icon-btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .badge-grid{grid-template-columns:repeat(2,1fr);}
  .two-col{grid-template-columns:1fr;gap:32px;}
  .check-panel{grid-template-columns:1fr;gap:28px;padding:28px;}
  .link-cards{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-head{padding:calc(76px + 48px) 0 44px;}
}
@media (max-width:767px){
  .section{padding:64px 0;}
  .badge-grid{grid-template-columns:1fr;}
  .link-cards{grid-template-columns:1fr;}
  .acc-body .inner{padding-left:22px;}
  .check-panel{padding:22px;}
  .cta-band{padding:32px 24px;border-radius:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .f-qr{display:none;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .page-head{padding:calc(76px + 40px) 0 36px;}
  .sec-card{padding:20px;}
  .cat-pills{gap:8px;}
  .pill{padding:7px 14px;font-size:13px;}
  .form-card{padding:20px;}
  .btn-brand,.btn-ghost{width:100%;}
  .nav-inner{height:64px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:color .01ms linear,background-color .01ms linear,border-color .01ms linear !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#155E7E;
  --brand-deep:#0E4761;
  --brand-soft:#EAF3F7;
  --accent:#2FA79E;
  --warm:#DE8A4B;
  --ink:#17262F;
  --ink-2:#526673;
  --line:#E1EAF0;
  --line-hover:#CFE3EC;
  --bg:#F6F9FB;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-media:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(14,71,97,.06);
  --shadow-2:0 10px 28px rgba(14,71,97,.10);
  --shadow-3:0 18px 44px rgba(14,71,97,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-body-color:#17262F;
  --bs-body-bg:#F6F9FB;
  --bs-primary:#155E7E;
  --bs-border-radius:12px;
  --bs-link-color:#155E7E;
  --bs-link-hover-color:#0E4761;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:96px 0;}
.section--soft{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head h2{
  font-size:clamp(22px,2.2vw,32px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:0;
  position:relative;
  padding-left:22px;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.34em;
  width:12px;height:12px;
  border-radius:3px;
  background:var(--brand);
}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px) saturate(150%);
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .26s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-2);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:76px;
  transition:height .26s var(--ease);
}
.site-header.is-stuck .header-inner{height:64px;}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;
}
.brand:hover{color:var(--brand-deep);}
.brand-mark{
  width:38px;height:38px;flex:none;
  border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:grid;place-items:center;
  color:#fff;font-size:19px;
}
nav[aria-label="主导航"]{margin-left:auto;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:6px 0;font-size:15px;color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{background:var(--brand);transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;
  background:var(--brand);color:#fff;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid var(--brand);
  border-radius:var(--radius-btn);
  box-shadow:var(--shadow-1);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-brand:active{transform:none;box-shadow:var(--shadow-1);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;
  background:transparent;color:var(--brand);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid var(--brand);
  border-radius:var(--radius-btn);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-ghost:hover{background:rgba(21,94,126,.08);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-ghost:active{transform:none;}
.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;
  background:rgba(255,255,255,.94);color:var(--brand);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid rgba(255,255,255,.94);
  border-radius:var(--radius-btn);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-glass:hover{background:#fff;color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-line-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;
  background:transparent;color:#fff;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid rgba(255,255,255,.6);
  border-radius:var(--radius-btn);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.btn-line-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.mobile-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  background:#fff;color:var(--ink);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  font-size:20px;
}
.mobile-toggle:hover{border-color:var(--line-hover);color:var(--brand);}

/* ---------- Mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:1050;
  background:#fff;
  padding:88px 24px 32px;
  transform:translateY(-100%);
  opacity:0;visibility:hidden;
  transition:transform .3s var(--ease),opacity .3s var(--ease),visibility .3s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:none;opacity:1;visibility:visible;}
.drawer-close{
  position:absolute;top:20px;right:24px;
  width:42px;height:42px;
  display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:20px;color:var(--ink);
}
.drawer-close:hover{border-color:var(--line-hover);color:var(--brand);}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;margin-bottom:28px;}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:28px;}
.drawer-links a{
  display:block;padding:14px 4px;
  font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--brand);font-weight:600;}
.drawer-contact{font-size:14px;color:var(--ink-2);display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.drawer-contact i{color:var(--accent);margin-right:8px;}

/* ---------- Page head ---------- */
.page-head{
  position:relative;
  padding:60px 0 64px;
  color:#fff;
  background:
    linear-gradient(100deg,rgba(14,71,97,.92) 0%,rgba(21,94,126,.80) 52%,rgba(21,94,126,.60) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:40px 40px;
  opacity:.5;
}
.page-head .wrap{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"›";color:rgba(255,255,255,.5);}
.crumbs a{color:rgba(255,255,255,.85);}
.crumbs a:hover{color:#fff;}
.crumbs .current{color:#fff;}
.head-badge{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:22px;padding:6px 14px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  border-radius:999px;
  font-size:13px;color:#fff;
  backdrop-filter:blur(6px);
}
.head-badge i{color:var(--accent);}
.page-head h1{
  margin-top:18px;
  font-size:clamp(28px,3.2vw,44px);
  line-height:1.25;font-weight:700;letter-spacing:0;
  max-width:900px;
}
.head-lead{
  margin-top:18px;max-width:780px;
  font-size:16px;line-height:1.85;
  color:rgba(255,255,255,.86);
}

/* ---------- Tabs ---------- */
.tabs-bar{padding:32px 0 0;background:var(--bg);}
.tabs{display:flex;flex-wrap:wrap;gap:10px;}
.tab{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;
  background:#fff;color:var(--ink-2);
  font-size:14px;font-weight:500;
  border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.tab:hover{border-color:var(--line-hover);color:var(--brand);box-shadow:var(--shadow-1);}
.tab.is-current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.tab.is-current:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;}

/* ---------- Quick cards ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px;}
.quick-card{
  background:#fff;
  border:1px solid transparent;
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.quick-card:hover{border-color:var(--line-hover);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.quick-card .ico{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  display:grid;place-items:center;
  font-size:20px;margin-bottom:16px;
}
.quick-card h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.quick-card p{font-size:15px;line-height:1.7;color:var(--ink-2);}

/* ---------- Timeline layout ---------- */
.layout-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:40px;
  align-items:start;
  margin-top:12px;
}
.timeline{position:relative;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;top:14px;bottom:14px;
  width:1px;
  background:linear-gradient(180deg,rgba(47,167,158,.55),var(--line) 92%);
}
.step{position:relative;padding-left:60px;padding-bottom:28px;}
.step:last-child{padding-bottom:0;}
.step-num{
  position:absolute;left:0;top:0;
  width:40px;height:40px;
  border-radius:12px;
  background:#fff;
  border:1px solid rgba(47,167,158,.45);
  color:var(--brand);
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  display:grid;place-items:center;
  box-shadow:var(--shadow-1);
  transition:background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.step:hover .step-num{background:var(--accent);border-color:var(--accent);color:#fff;}
.step-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 26px;
  box-shadow:var(--shadow-1);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.step-card:hover{border-color:var(--line-hover);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.step-card h3{font-size:19px;line-height:1.45;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:15px;line-height:1.75;color:var(--ink-2);}
.step-card .tip{margin-top:14px;padding:12px 16px;background:var(--brand-soft);border-radius:10px;font-size:14px;color:var(--brand-deep);}
.step-card .tip i{color:var(--accent);margin-right:6px;}

/* ---------- Side sticky card ---------- */
.side-col{position:sticky;top:96px;}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-2);
}
.side-card .side-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;
  border-radius:999px;
  margin-bottom:16px;
}
.side-card h3{font-size:19px;line-height:1.45;font-weight:600;margin-bottom:16px;}
.side-list{display:flex;flex-direction:column;gap:14px;}
.side-list li{display:flex;gap:12px;font-size:15px;line-height:1.7;color:var(--ink-2);}
.side-list i{color:var(--accent);font-size:16px;margin-top:4px;flex:none;}
.side-divider{height:1px;background:var(--line);margin:22px 0;}
.side-meta{font-size:13px;color:var(--ink-2);display:flex;flex-direction:column;gap:8px;}
.side-meta span{display:flex;align-items:center;gap:8px;}
.side-meta i{color:var(--brand);}
.side-card .btn-brand{width:100%;margin-top:20px;}

/* ---------- Common issue block ---------- */
.issue-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:48px;
  align-items:center;
}
.media-figure{margin:0;}
.media-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-media);
  box-shadow:var(--shadow-1);
}
.media-figure figcaption{margin-top:12px;font-size:13px;color:var(--ink-2);text-align:center;}
.issue-list{display:flex;flex-direction:column;gap:20px;}
.issue-item{
  display:flex;gap:16px;
  padding:20px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.issue-item:hover{border-color:var(--line-hover);box-shadow:var(--shadow-1);}
.issue-item .dot{
  width:10px;height:10px;flex:none;
  border-radius:3px;background:var(--accent);
  margin-top:11px;
}
.issue-item h4{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px;}
.issue-item p{font-size:15px;line-height:1.7;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  position:relative;
  padding:20px 56px 20px 24px;
  font-size:17px;font-weight:600;line-height:1.5;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;right:24px;top:50%;
  transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);
  transition:transform .24s var(--ease);
}
.faq-item[open]{border-color:var(--line-hover);box-shadow:var(--shadow-1);}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand-deep) 0%,var(--brand) 100%);
  color:#fff;
  padding:72px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;font-weight:700;}
.cta-inner p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.78);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:#0B2C3B;color:rgba(255,255,255,.72);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px;}
.f-brand .brand-mark{background:linear-gradient(135deg,var(--accent),var(--brand));}
.f-desc{font-size:14px;line-height:1.8;max-width:320px;}
.f-qr{
  margin-top:20px;width:108px;height:108px;
  border:1px dashed rgba(255,255,255,.28);
  border-radius:12px;
  display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.6;color:rgba(255,255,255,.55);
}
.f-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.f-links{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.f-links a{display:inline-block;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);}
.f-links a:hover{color:#fff;transform:translateX(2px);}
.f-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;margin-bottom:10px;align-items:flex-start;}
.f-contact i{color:var(--accent);margin-top:3px;flex:none;}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .section{padding:80px 0;}
  .layout-grid{gap:32px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  nav[aria-label="主导航"]{display:none;}
  .mobile-toggle{display:inline-flex;}
  .header-actions .btn-brand{display:none;}
  .quick-grid{grid-template-columns:1fr 1fr;}
  .layout-grid{grid-template-columns:1fr;}
  .side-col{position:static;}
  .issue-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-head{padding:48px 0 52px;}
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  .quick-grid{grid-template-columns:1fr;}
  .step{padding-left:52px;}
  .step-card{padding:20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-line-light{flex:1 1 auto;}
  .head-lead{font-size:15px;}
}
@media (max-width:575.98px){
  .section{padding:48px 0;}
  .header-inner{height:66px;gap:12px;}
  .brand{font-size:16px;}
  .brand-mark{width:34px;height:34px;font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .tabs{gap:8px;}
  .tab{padding:8px 14px;font-size:13px;}
  .side-card{padding:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --brand:#155E7E;
  --brand-deep:#0E4761;
  --brand-soft:#EAF3F7;
  --accent:#2FA79E;
  --warm:#DE8A4B;
  --ink:#17262F;
  --ink-2:#526673;
  --line:#E1EAF0;
  --bg:#F6F9FB;
  --card:#FFFFFF;
  --ok:#2E8B6B;
  --err:#C0503F;
  --r-card:14px;
  --r-media:12px;
  --r-btn:10px;
  --shadow-1:0 2px 8px rgba(14,71,97,.06);
  --shadow-2:0 10px 28px rgba(14,71,97,.10);
  --shadow-3:0 18px 44px rgba(14,71,97,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#155E7E;
  --bs-body-color:#17262F;
  --bs-body-bg:#F6F9FB;
  --bs-border-color:#E1EAF0;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding-top:76px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{letter-spacing:0;margin:0;color:var(--ink)}
h1{font-size:clamp(28px,3.2vw,46px);line-height:1.25;font-weight:700}
h2{font-size:clamp(22px,2.2vw,32px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn-brand,.btn-ghost,.btn-glass,.btn-light-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  text-decoration:none;
}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(21,94,126,.08);color:var(--brand-deep);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-glass{background:rgba(255,255,255,.92);color:var(--brand);border-color:rgba(255,255,255,.6)}
.btn-glass:hover{background:#fff;color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-light-solid{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-light-solid:hover{border-color:#CFE3EC;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.btn-block{width:100%}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:76px;display:flex;align-items:center;
  transition:height .26s var(--ease),background .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.nav--solid{
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(12px) saturate(160%);
  backdrop-filter:blur(12px) saturate(160%);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.site-header.is-stuck{height:64px;box-shadow:var(--shadow-2)}
.nav-inner{display:flex;align-items:center;gap:28px;width:100%}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);flex-shrink:0}
.logo:hover{color:var(--brand)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-size:17px;flex-shrink:0;
}
.nav-links{display:flex;align-items:center;list-style:none;gap:26px;margin:0 0 0 auto;padding:0}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--ink);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:17px;
  transition:all .2s var(--ease);cursor:pointer;
}
.icon-btn:hover{color:var(--brand);border-color:#CFE3EC;box-shadow:var(--shadow-1)}
.nav-cta{padding:11px 22px;font-size:14px}
.hamburger{display:none}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,71,97,.42);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s;z-index:1040;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);z-index:1050;
  background:#fff;box-shadow:var(--shadow-3);
  transform:translateX(102%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:22px 24px 30px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-links{list-style:none;display:flex;flex-direction:column;gap:4px;margin:0 0 22px;padding:0}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--brand);font-weight:600}
.drawer-links a i{color:var(--ink-2);font-size:14px}
.drawer-foot{margin-top:auto;font-size:13px;line-height:1.9;color:var(--ink-2)}
.drawer-foot strong{display:block;color:var(--ink);font-size:15px;margin-bottom:6px}

/* ============ 内页页头 ============ */
.page-head{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(14,71,97,.90) 0%,rgba(14,71,97,.70) 52%,rgba(21,94,126,.42) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  padding:64px 0 56px;color:#fff;
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 82% 18%,rgba(47,167,158,.22),transparent 46%);
}
.page-head .wrap{position:relative;z-index:2}
.crumb{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 22px;padding:0;font-size:13px;color:rgba(255,255,255,.78)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb a{color:rgba(255,255,255,.86)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.45)}
.crumb .current{color:#fff;font-weight:600}
.head-badge{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;
}
.head-badge i{color:var(--accent)}
.page-head h1{color:#fff;max-width:840px}
.page-head .lead{max-width:760px;margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.84)}

/* 分类 pill 条 */
.cat-bar{padding:22px 0;background:#fff;border-bottom:1px solid var(--line)}
.cat-pills{display:flex;flex-wrap:wrap;gap:10px}
.cat-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:999px;font-size:14px;font-weight:500;
  background:var(--brand-soft);color:var(--brand);border:1px solid transparent;
  transition:all .2s var(--ease);
}
.cat-pill:hover{background:#DDEBF2;color:var(--brand-deep);transform:translateY(-1px)}
.cat-pill.is-active{background:var(--brand);color:#fff;font-weight:600;box-shadow:var(--shadow-1)}
.cat-pill.is-active:hover{background:var(--brand-deep);color:#fff}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-alt{background:#fff}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;color:var(--brand);
}
.sec-tag::before{content:"";width:12px;height:12px;border-radius:3px;background:var(--accent);display:inline-block}
.sec-title{display:flex;align-items:flex-start;gap:12px}
.sec-title::before{content:"";flex:0 0 auto;width:12px;height:12px;border-radius:3px;background:var(--brand);margin-top:11px}
.sec-desc{color:var(--ink-2);font-size:16px;line-height:1.8;margin-top:14px}

/* ============ 支持渠道 ============ */
.support-hero-media{
  border-radius:var(--r-media);overflow:hidden;margin-bottom:26px;
  box-shadow:var(--shadow-1);background:linear-gradient(135deg,#155E7E,#2FA79E);
}
.support-hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.channel-card{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--card);border:1px solid transparent;border-radius:var(--r-card);
  padding:24px 26px;margin-bottom:16px;box-shadow:var(--shadow-1);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
}
.channel-card:hover{border-color:#CFE3EC;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.channel-icon{
  flex:0 0 auto;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:20px;
}
.channel-card .channel-body{min-width:0}
.channel-card h3{font-size:18px;margin-bottom:6px}
.channel-card p{font-size:15px;line-height:1.7;color:var(--ink-2);margin-bottom:10px}
.channel-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--ink-2)}
.channel-meta span{display:inline-flex;align-items:center;gap:6px}
.channel-meta i{color:var(--accent)}
.channel-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);margin-top:12px}
.channel-link i{transition:transform .2s var(--ease)}
.channel-link:hover{color:var(--brand-deep)}
.channel-link:hover i{transform:translateX(4px)}

/* 服务时间条 */
.time-bar{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;margin-top:8px;
}
.time-bar .tb-item{background:#fff;padding:20px 22px}
.time-bar .tb-num{
  font-size:20px;font-weight:700;color:var(--brand);line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.time-bar .tb-label{font-size:13px;color:var(--ink-2);margin-top:4px}

/* 提交清单 */
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.check-list li{
  position:relative;padding-left:30px;font-size:15px;line-height:1.75;color:var(--ink-2);
}
.check-list li::before{
  content:"\F26E";font-family:"bootstrap-icons";position:absolute;left:0;top:1px;
  width:20px;height:20px;display:grid;place-items:center;border-radius:6px;
  background:rgba(47,167,158,.14);color:var(--accent);font-size:12px;
}
.check-list strong{color:var(--ink);font-weight:600}

/* ============ 表单卡 ============ */
.form-card{
  background:var(--card);border-radius:var(--r-card);box-shadow:var(--shadow-2);
  padding:28px;border:1px solid var(--line);
}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-sub{font-size:14px;color:var(--ink-2);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:500}
.field .req{color:var(--err);margin-left:2px}
.field .form-control,.field .form-select{
  width:100%;height:48px;border:1px solid #D8E4EB;border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea.form-control{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field .form-control:focus,.field .form-select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,94,126,.14);
}
.field .form-control::placeholder{color:#9BADB8}
.field.invalid .form-control,.field.invalid .form-select{border-color:var(--err);box-shadow:0 0 0 3px rgba(192,80,63,.10)}
.err-tip{display:none;font-size:13px;color:var(--err);margin-top:6px}
.field.invalid .err-tip{display:block}
.agree{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--ink-2);line-height:1.65;margin:4px 0 18px}
.agree input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand);flex:0 0 auto}
.form-note{font-size:12px;color:var(--ink-2);margin-top:12px;line-height:1.7}
.form-ok{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(46,139,107,.10);color:var(--ok);font-size:14px;
}
.form-ok.show{display:block}
.side-sticky{position:sticky;top:96px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:#CFE3EC;box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 56px 18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--brand);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s var(--ease);
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;display:grid;place-items:center;
  font-size:18px;font-weight:400;color:var(--ink-2);line-height:1;
  transition:transform .25s var(--ease),color .2s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--brand)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-body p{margin-bottom:10px}

/* ============ 相关入口 ============ */
.link-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.link-card{
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;transition:all .25s var(--ease);
}
.link-card:hover{border-color:#CFE3EC;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.link-card .lc-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.link-card .lc-body{min-width:0}
.link-card h4{font-size:16px;margin-bottom:2px;color:var(--ink)}
.link-card p{font-size:13px;color:var(--ink-2);line-height:1.6;margin:0}
.link-card .lc-arrow{margin-left:auto;color:var(--brand);font-size:15px;transition:transform .2s var(--ease)}
.link-card:hover .lc-arrow{transform:translateX(4px)}

/* ============ CTA 带 ============ */
.cta-band{
  background:linear-gradient(135deg,var(--brand-deep),var(--brand));
  color:#fff;border-radius:var(--r-card);
  padding:48px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,167,158,.28),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2vw,28px)}
.cta-band p{color:rgba(255,255,255,.8);font-size:15px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2;flex-shrink:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#fff;margin-top:0;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.f-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px}
.f-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.2)}
.f-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:18px;max-width:330px}
.f-qr{
  width:96px;height:96px;border-radius:10px;display:grid;place-items:center;text-align:center;
  background:rgba(255,255,255,.08);border:1px dashed rgba(255,255,255,.26);
  font-size:12px;line-height:1.6;color:rgba(255,255,255,.66);
}
.f-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.f-links{display:flex;flex-direction:column;gap:11px}
.f-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease)}
.f-links a:hover{color:#fff;transform:translateX(2px)}
.f-contact{list-style:none;display:flex;flex-direction:column;gap:12px;margin:0;padding:0}
.f-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72)}
.f-contact i{color:var(--accent);font-size:15px;margin-top:3px;flex:0 0 auto}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section{padding:80px 0}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
  .footer-grid > div:last-child{grid-column:1 / -1}
}
@media (max-width:991.98px){
  body{padding-top:68px}
  .site-header{height:68px}
  .nav-links,.nav-actions .nav-cta,.nav-actions .icon-btn{display:none}
  .hamburger{
    display:grid;place-items:center;width:42px;height:42px;border-radius:10px;
    border:1px solid var(--line);background:#fff;color:var(--ink);font-size:20px;cursor:pointer;
  }
  .nav-actions{margin-left:auto}
  .section{padding:64px 0}
  .section-sm{padding:56px 0}
  .side-sticky{position:static}
  .form-card{margin-top:28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .time-bar{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .page-head{padding:48px 0 44px}
  .page-head .lead{font-size:15px}
  .link-cards{grid-template-columns:1fr}
  .channel-card{padding:20px;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px}
  .section{padding:48px 0}
  .section-sm{padding:44px 0}
  .btn-brand,.btn-ghost,.btn-glass,.btn-light-solid{width:100%}
  .cta-actions{width:100%}
  .form-card{padding:22px}
  .channel-card{flex-direction:column;gap:14px}
  .faq-item summary{padding:16px 48px 16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
  .sec-title::before{margin-top:9px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}