/* roulang page: index */
:root{
  --c-600:#0D6E8A; --c-700:#0A5A70; --c-900:#073B4C;
  --c-100:#E6F3F7; --c-50:#F4F9FB;
  --acc:#FF8A3D; --acc-50:#FFF1E6; --lime:#C7E85A;
  --ink:#0F2A33; --body:#4A6270; --muted:#8AA0AA;
  --line:#E3ECF0; --bg:#F5F9FA; --bg-alt:#EAF4F7; --card:#FFFFFF;
  --r-sm:8px; --r-md:12px; --r-lg:18px; --r-xl:22px; --r-pill:999px;
  --sh-xs:0 1px 2px rgba(11,42,51,.06);
  --sh-sm:0 4px 12px rgba(11,42,51,.06);
  --sh-md:0 10px 30px rgba(11,42,51,.08);
  --sh-lg:0 20px 48px rgba(11,42,51,.12);
  --sh-brand:0 12px 28px rgba(13,110,138,.22);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(13,110,138,.28);outline-offset:2px;border-radius:6px}

.container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container-x{padding-left:24px;padding-right:24px}}
@media(min-width:1280px){.container-x{padding-left:32px;padding-right:32px}}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--c-900);color:#fff;font-size:13px;height:38px;display:flex;align-items:center}
.topbar .tb-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar span{color:#BCD3DA}
.topbar strong{color:#fff;font-weight:600}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow var(--t)
}
.site-header.is-scrolled{box-shadow:var(--sh-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:12px;flex:none}
.logo-mark{
  width:44px;height:44px;border-radius:14px;flex:none;
  background:linear-gradient(135deg,var(--c-600),var(--c-900));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;letter-spacing:.02em;box-shadow:var(--sh-sm)
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--c-600);letter-spacing:.04em}
.nav-main{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:8px 2px;border-radius:var(--r-pill);transition:color var(--t),background var(--t);
  white-space:nowrap
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--c-600);
  transform:scaleX(0);transform-origin:center;transition:transform var(--t);border-radius:2px
}
.nav-link:hover{color:var(--c-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-600);background:var(--c-100);padding:8px 14px;font-weight:600}
.nav-link.is-active::after{transform:scaleX(1);bottom:4px;left:14px;right:14px}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.menu-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background var(--t),border-color var(--t)
}
.menu-btn:hover{background:var(--c-50);border-color:var(--c-100)}
.menu-btn span{display:block;width:20px;height:2px;background:var(--c-600);border-radius:2px;position:relative;transition:var(--t)}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--c-600);border-radius:2px;transition:var(--t)
}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
.menu-btn.is-open span{background:transparent}
.menu-btn.is-open span::before{transform:translateY(6px) rotate(45deg)}
.menu-btn.is-open span::after{transform:translateY(-6px) rotate(-45deg)}

.mask{
  position:fixed;inset:0;background:rgba(7,59,76,.45);opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);z-index:60
}
.mask.is-open{opacity:1;visibility:visible}
.mobile-panel{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;background:#fff;
  border-radius:20px 0 0 20px;z-index:70;transform:translateX(105%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;
  box-shadow:var(--sh-lg);overflow-y:auto
}
.mobile-panel.is-open{transform:translateX(0)}
.mp-head{padding:20px 22px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
.mp-nav{flex:1;padding:8px 0}
.mp-nav a{
  display:flex;align-items:center;height:52px;padding:0 22px;font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);transition:background var(--t),color var(--t)
}
.mp-nav a:hover{background:var(--c-50);color:var(--c-600)}
.mp-nav a.is-active{color:var(--c-600);font-weight:600;background:var(--c-50)}
.mp-foot{padding:18px 22px 26px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:12px;font-size:15px;font-weight:600;
  cursor:pointer;border:1.5px solid transparent;transition:all var(--t);white-space:nowrap
}
.btn-primary{background:var(--c-600);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{background:var(--c-700);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;border-color:var(--c-600);color:var(--c-600)}
.btn-ghost:hover{background:var(--c-100);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-600);font-size:15px;font-weight:600;cursor:pointer;background:none;border:none;padding:6px 0}
.btn-text .arw{transition:transform var(--t)}
.btn-text:hover .arw{transform:translateX(4px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:10px}

/* ---------- 通用板块 ---------- */
.sec{padding:56px 0}
@media(min-width:768px){.sec{padding:72px 0}}
@media(min-width:1024px){.sec{padding:96px 0}}
.sec-white{background:#fff}
.sec-alt{background:var(--bg-alt)}
.sec-line{border-top:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-600);
  background:var(--c-100);border-radius:var(--r-pill);padding:5px 14px;letter-spacing:.02em
}
.sec-title{
  position:relative;padding-left:16px;font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;color:var(--ink);letter-spacing:-.01em
}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--c-600)}
.sec-title::after{content:"";position:absolute;left:16px;bottom:-14px;width:32px;height:3px;border-radius:3px;background:var(--c-600)}
.sec-desc{margin-top:26px;font-size:17px;line-height:1.8;color:var(--body);max-width:640px}
.sticky-col{position:sticky;top:104px}

/* ---------- Hero ---------- */
.hero{position:relative;background:#fff;overflow:hidden;padding:48px 0 56px}
@media(min-width:1024px){.hero{padding:76px 0 88px}}
.hero::before{
  content:"";position:absolute;right:-160px;top:-180px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(13,110,138,.16),rgba(13,110,138,0) 68%);pointer-events:none
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.04;
  background-image:radial-gradient(#0D6E8A 1px,transparent 1px);background-size:18px 18px
}
.hero-grid{position:relative;z-index:2;display:grid;gap:36px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:6fr 6fr;gap:48px}}
.hero h1{
  font-size:clamp(30px,4.6vw,46px);line-height:1.18;font-weight:800;color:var(--ink);
  letter-spacing:-.01em;margin-top:18px
}
.hl{
  color:var(--c-600);background:linear-gradient(transparent 62%,rgba(13,110,138,.16) 62%);
  padding:0 2px;border-radius:3px
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--body);max-width:620px}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-cta .btn{width:100%}
@media(min-width:640px){.hero-cta .btn{width:auto}}
.trust{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:28px;font-size:13px;color:var(--muted)}
.trust li{display:flex;align-items:center;gap:6px}
.trust li+li{padding-left:14px;border-left:1px solid var(--line)}
.trust svg{width:16px;height:16px;flex:none;stroke:var(--c-600)}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-xl);box-shadow:var(--sh-md);width:100%;aspect-ratio:16/11;object-fit:cover}
.float-card{
  position:absolute;left:-12px;bottom:-18px;background:#fff;border-radius:16px;padding:14px 18px;
  box-shadow:var(--sh-lg);min-width:150px;border:1px solid var(--line)
}
@media(min-width:1024px){.float-card{left:-24px;bottom:-24px}}
.float-card b{display:block;font-size:26px;font-weight:800;color:var(--acc);font-variant-numeric:tabular-nums;line-height:1.2}
.float-card span{font-size:12px;color:var(--muted)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:24px;transition:box-shadow var(--t),transform var(--t),border-color var(--t)
}
@media(max-width:767px){.card{padding:18px}}
.card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:var(--c-100)}
.svc-grid{display:grid;gap:20px}
@media(min-width:768px){.svc-grid{grid-template-columns:repeat(2,1fr)}}
.svc-card{display:flex;flex-direction:column;gap:12px}
.svc-icon{
  width:46px;height:46px;border-radius:13px;background:var(--c-100);color:var(--c-600);
  display:flex;align-items:center;justify-content:center;flex:none
}
.svc-icon svg{width:22px;height:22px}
.svc-card h3{font-size:20px;font-weight:600;color:var(--ink);line-height:1.45}
.svc-card p{font-size:15px;line-height:1.8;color:var(--body)}
.svc-card .svc-more{margin-top:auto;padding-top:6px}
.svc-head{display:flex;align-items:center;gap:12px}
.svc-card .arrow{transition:transform var(--t);color:var(--c-600)}
.svc-card:hover .arrow{transform:translateX(4px)}

/* ---------- 数据通栏 ---------- */
.stats{background:var(--c-900);color:#fff;padding:72px 0}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0}
@media(min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat{padding:18px 12px;text-align:center;border-right:1px solid rgba(255,255,255,.16)}
.stat:nth-child(2n){border-right:none}
@media(min-width:1024px){
  .stat{border-right:1px solid rgba(255,255,255,.16)}
  .stat:nth-child(2n){border-right:1px solid rgba(255,255,255,.16)}
  .stat:last-child{border-right:none}
}
.stat b{display:block;font-size:clamp(34px,4.4vw,46px);font-weight:800;line-height:1.15;color:var(--lime);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:10px;font-size:13px;color:rgba(255,255,255,.72)}
.stat-note{text-align:center;margin-top:34px;font-size:14px;color:rgba(255,255,255,.62)}

/* ---------- 案例交替 ---------- */
.case-row{display:grid;gap:24px;align-items:center;padding:32px 0;border-bottom:1px solid var(--line)}
.case-row:last-child{border-bottom:none}
@media(min-width:1024px){
  .case-row{grid-template-columns:6fr 6fr;gap:56px;padding:44px 0}
  .case-row.flip .case-text{order:2}
  .case-row.flip .case-img{order:1}
}
.case-img img{border-radius:var(--r-lg);width:100%;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--sh-sm);transition:transform 500ms cubic-bezier(.2,.7,.3,1)}
.case-img{overflow:hidden;border-radius:var(--r-lg)}
.case-img:hover img{transform:scale(1.04)}
.badge{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-100);color:var(--c-600)
}
.badge-soft{background:#EEF2F4;color:#6B818C}
.badge-acc{background:var(--acc-50);color:#C25E1C}
.case-text h3{margin-top:14px;font-size:22px;font-weight:600;color:var(--ink);line-height:1.45}
.case-text p{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--body)}
.case-metric{margin-top:16px;display:flex;gap:22px;flex-wrap:wrap}
.case-metric div b{display:block;font-size:20px;font-weight:800;color:var(--c-600);font-variant-numeric:tabular-nums}
.case-metric div span{font-size:12px;color:var(--muted)}

/* ---------- 方案条目 ---------- */
.plan-list{display:flex;flex-direction:column;gap:16px}
.plan-item{
  display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px 24px;box-shadow:var(--sh-xs);transition:all var(--t)
}
.plan-item:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:var(--c-100)}
.plan-no{
  font-size:30px;font-weight:800;color:transparent;-webkit-text-stroke:1.4px var(--c-600);
  line-height:1;flex:none;width:56px;font-variant-numeric:tabular-nums
}
.plan-body{flex:1;min-width:0}
.plan-body h3{font-size:18px;font-weight:600;color:var(--ink)}
.plan-body p{margin-top:6px;font-size:14px;color:var(--body);line-height:1.7}
@media(max-width:767px){
  .plan-item{flex-wrap:wrap;gap:12px;padding:18px}
  .plan-item .btn{width:100%}
  .plan-no{width:auto}
}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-xs);display:flex;flex-direction:column;transition:all var(--t)
}
.news-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.news-thumb{display:block;overflow:hidden;aspect-ratio:16/10;background:var(--c-100)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 500ms cubic-bezier(.2,.7,.3,1)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t)}
.news-card:hover .news-body h3{color:var(--c-600)}
.news-body p{font-size:14px;line-height:1.75;color:var(--body);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.news-meta time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.empty-state{
  border:1.5px dashed rgba(13,110,138,.35);border-radius:16px;background:#fff;
  padding:40px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px
}
.empty-state svg{width:36px;height:36px;stroke:var(--c-600)}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden;transition:box-shadow var(--t)}
.faq-item:hover{box-shadow:var(--sh-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5
}
.faq-ico{
  width:30px;height:30px;flex:none;border-radius:50%;background:var(--c-100);color:var(--c-600);
  display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;transition:transform var(--t)
}
.faq-item.is-open .faq-ico{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--body);background:var(--c-50);margin:0 0 0;padding-top:14px;border-top:1px solid var(--line)}

/* ---------- 表单 ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-md);padding:26px}
@media(min-width:768px){.form-card{padding:32px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--acc)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;border:1px solid #DCE6EB;border-radius:10px;padding:12px 14px;
  background:#fff;font-size:15px;color:var(--ink);transition:border-color var(--t),box-shadow var(--t)
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A9BDC6}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-600);box-shadow:0 0 0 3px rgba(13,110,138,.14);outline:none}
.field select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230D6E8A' stroke-width='2.4' stroke-linecap='round'><path d='M6 9l6 6 6-6'/></svg>");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.form-actions{display:flex;justify-content:flex-start;margin-top:6px}
@media(min-width:768px){.form-actions{justify-content:flex-end}}
.form-actions .btn{width:100%}
@media(min-width:768px){.form-actions .btn{width:auto}}
.form-note{margin-top:14px;font-size:13px;color:var(--muted)}
.form-msg{display:none;margin-top:14px;background:var(--c-100);color:var(--c-700);border-radius:10px;padding:12px 14px;font-size:14px}
.form-msg.is-show{display:block}
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-item:last-child{border-bottom:none}
.contact-item .ci-ico{width:40px;height:40px;border-radius:12px;background:var(--c-100);color:var(--c-600);display:flex;align-items:center;justify-content:center;flex:none}
.contact-item .ci-ico svg{width:19px;height:19px}
.contact-item small{display:block;font-size:13px;color:var(--muted)}
.contact-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink);margin-top:2px}
.map-box{
  margin-top:18px;height:120px;border-radius:14px;background:var(--c-50);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--c-600);gap:8px;font-size:13px
}

/* ---------- CTA 通栏 ---------- */
.cta-bar{background:var(--c-600);color:#fff;padding:40px 0}
@media(min-width:1024px){.cta-bar{padding:48px 0}}
.cta-inner{display:flex;flex-direction:column;gap:20px;align-items:flex-start}
@media(min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:#fff;line-height:1.3}
.cta-inner p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.85);max-width:640px}
.cta-bar .btn-light{background:#fff;color:var(--c-700)}
.cta-bar .btn-light:hover{background:var(--c-100);transform:translateY(-1px)}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-900);color:#BCD3DA;padding:56px 0 0;font-size:14px}
@media(min-width:1024px){.site-foot{padding-top:72px}}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.foot-grid{grid-template-columns:4fr 2fr 3fr 3fr}}
.foot-brand .logo-text strong{color:#fff}
.foot-brand .logo-text em{color:#7FC4D6}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:320px}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:#BCD3DA;transition:all var(--t);display:inline-block}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-contact li{margin-bottom:12px;font-size:14px;line-height:1.7}
.foot-contact b{color:#fff;font-weight:600}
.foot-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;flex-direction:column;gap:10px;font-size:13px;color:#8FB3BF
}
@media(min-width:768px){.foot-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.foot-bottom a{color:#BCD3DA}
.foot-bottom a:hover{color:#fff}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none}
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand-600:#0D6E8A;
  --brand-700:#0A5A70;
  --brand-900:#073B4C;
  --brand-100:#E6F3F7;
  --brand-50:#F4F9FB;
  --accent:#FF8A3D;
  --accent-soft:#FFF1E6;
  --lime:#C7E85A;
  --ink:#0F2A33;
  --text:#4A6270;
  --muted:#8AA0AA;
  --line:#E3ECF0;
  --page:#F5F9FA;
  --alt:#EAF4F7;
  --card:#FFFFFF;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-xs:0 1px 2px rgba(11,42,51,.06);
  --sh-sm:0 4px 12px rgba(11,42,51,.06);
  --sh-md:0 10px 30px rgba(11,42,51,.08);
  --sh-lg:0 20px 48px rgba(11,42,51,.12);
  --sh-brand:0 12px 28px rgba(13,110,138,.22);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--page);
  overflow-x:hidden;
}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 24px}}
@media (min-width:1280px){.container-x{padding:0 32px}}

/* 顶栏 */
.topbar{background:var(--brand-900);color:#D8E9EE;font-size:13px;display:none}
@media (min-width:768px){.topbar{display:block}}
.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar p{color:#BCD3DA}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right a{color:#fff}
.topbar-right a:hover{color:var(--lime)}

/* 头部导航 */
.site-head{
  position:sticky;top:0;z-index:50;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-head.is-scrolled{box-shadow:var(--sh-sm)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-900));
  color:#fff;font-size:15px;font-weight:800;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-brand);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--brand-600);letter-spacing:.02em}
.nav-main{align-items:center;gap:24px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 2px;transition:color var(--t);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:center;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:var(--brand-600);background:var(--brand-100);
  border-radius:var(--r-pill);padding:6px 14px;
}
.nav-link.is-active::after{transform:scaleX(1);left:14px;right:14px}
.head-actions{display:flex;align-items:center;gap:12px}
.menu-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  background:#fff;transition:border-color var(--t),background var(--t);
}
.menu-btn span{display:block;width:20px;height:2px;background:var(--brand-600);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.menu-btn:hover{border-color:var(--brand-600);background:var(--brand-50)}
.menu-btn.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.is-open span:nth-child(2){opacity:0}
.menu-btn.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.menu-btn{display:none}}
.nav-main{display:none}
@media (min-width:1024px){.nav-main{display:flex !important}}
@media (max-width:1023.98px){.nav-main{display:none !important}}
.head-actions .btn-head{display:none}
@media (min-width:640px){.head-actions .btn-head{display:inline-flex}}

.mobile-mask{
  position:fixed;inset:0;background:rgba(7,59,76,.45);z-index:60;
  opacity:0;pointer-events:none;transition:opacity var(--t);
}
.mobile-mask.is-show{opacity:1;pointer-events:auto}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:61;
  background:#fff;border-radius:20px 0 0 20px;padding:22px 20px 26px;
  transform:translateX(104%);transition:transform 240ms cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;box-shadow:var(--sh-lg);overflow-y:auto;
}
.mobile-panel.is-show{transform:translateX(0)}
.mobile-panel .panel-title{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-bottom:8px}
.mobile-panel a.panel-link{
  display:flex;align-items:center;height:52px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.panel-link.is-active{color:var(--brand-600);font-weight:700}
.mobile-panel a.panel-link:hover{color:var(--brand-600)}
.panel-cta{margin-top:auto;padding-top:22px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:12px;
  font-size:15px;font-weight:600;transition:transform var(--t),background var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--brand-600);border:1.5px solid var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100)}
.btn-ghost:active{transform:scale(.98)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:var(--brand-100);transform:translateY(-1px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:15px;font-weight:600}
.link-arrow svg{transition:transform var(--t)}
.link-arrow:hover svg{transform:translateX(4px)}

/* 面包屑 */
.crumb{background:#fff;border-bottom:1px solid var(--line)}
.crumb-inner{display:flex;align-items:center;gap:8px;height:48px;font-size:14px;color:var(--muted);overflow:hidden;white-space:nowrap}
.crumb-inner a{color:var(--text)}
.crumb-inner a:hover{color:var(--brand-600)}
.crumb-inner .sep{color:#C3D5DC}
.crumb-inner .current{color:var(--ink);font-weight:700;overflow:hidden;text-overflow:ellipsis}

/* 分类 Hero */
.cat-hero{
  position:relative;background:var(--brand-100);overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.18),rgba(255,138,61,0) 68%);
}
.cat-hero-inner{position:relative;z-index:2;display:grid;gap:24px;padding:48px 0 52px}
@media (min-width:1024px){
  .cat-hero-inner{grid-template-columns:7fr 5fr;align-items:center;padding:56px 0 60px;min-height:300px}
}
.cat-hero-text h1{
  font-size:clamp(28px,4.2vw,42px);line-height:1.2;font-weight:800;
  letter-spacing:-.01em;color:var(--ink);margin-bottom:16px;
}
.cat-hero-text h1 .hl{
  color:var(--brand-600);
  background:linear-gradient(transparent 66%,rgba(199,232,90,.55) 66%);
}
.cat-hero-text p{max-width:600px;font-size:17px;line-height:1.8;color:var(--text);margin-bottom:24px}
.cat-hero-btns{display:flex;flex-wrap:wrap;gap:12px}
.cat-hero-btns .btn{flex:1 1 160px}
@media (min-width:640px){.cat-hero-btns .btn{flex:0 0 auto}}
.cat-hero-art{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);border:1px solid rgba(13,110,138,.12)}
.cat-hero-art img{width:100%;height:220px;object-fit:cover}
@media (min-width:1024px){.cat-hero-art img{height:280px}}

.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:#fff;color:var(--brand-600);
  font-size:12px;font-weight:600;border:1px solid rgba(13,110,138,.2);margin-bottom:14px;
}
.badge-accent{background:var(--accent-soft);color:#C25E14;border-color:rgba(255,138,61,.3)}

/* 锚点条 */
.chip-bar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:72px;z-index:40}
.chip-scroll{display:flex;gap:10px;overflow-x:auto;padding:14px 20px;scrollbar-width:none}
.chip-scroll::-webkit-scrollbar{display:none}
@media (min-width:768px){.chip-scroll{padding:14px 24px}}
@media (min-width:1280px){.chip-scroll{padding:16px 32px}}
.chip{
  flex:0 0 auto;height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--text);
  font-size:14px;font-weight:600;display:inline-flex;align-items:center;
  transition:all var(--t);
}
.chip:hover{border-color:var(--brand-600);color:var(--brand-600)}
.chip.is-on{background:var(--brand-600);border-color:var(--brand-600);color:#fff;box-shadow:var(--sh-brand)}

/* 板块 */
.sec{padding:56px 0}
@media (min-width:768px){.sec{padding:72px 0}}
@media (min-width:1024px){.sec{padding:96px 0}}
.sec-alt{background:var(--alt)}
.sec-white{background:#fff}
.sec-head{max-width:720px;margin-bottom:36px}
.sec-tag{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand-600);
  letter-spacing:.06em;margin-bottom:10px;
  border-left:4px solid var(--brand-600);padding-left:10px;line-height:1.2;
}
.sec-head h2{
  font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;color:var(--ink);
  margin-bottom:12px;position:relative;padding-bottom:18px;
}
.sec-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;border-radius:3px;background:var(--brand-600);
}
.sec-head p{font-size:16px;color:var(--text);line-height:1.85}
.sec-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.sec-head-row .sec-head{margin-bottom:0}

/* 卡片网格 */
.grid-cards{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.grid-cards{grid-template-columns:repeat(2,1fr);gap:24px}}
@media (min-width:1024px){.grid-cards{grid-template-columns:repeat(3,1fr)}}
.card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:18px;padding:24px;box-shadow:var(--sh-xs);
  transition:box-shadow var(--t),transform var(--t);
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.card-ico{
  width:46px;height:46px;border-radius:14px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);margin-bottom:16px;
}
.card h3{font-size:20px;font-weight:600;color:var(--ink);line-height:1.45;margin-bottom:8px}
.card p{font-size:15px;color:var(--text);line-height:1.8;margin-bottom:18px}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.card-corner{
  position:absolute;top:0;right:0;width:54px;height:54px;
  background:linear-gradient(225deg,var(--brand-50) 50%,transparent 50%);
  border-radius:0 18px 0 0;pointer-events:none;
}
.card-grid-num{
  position:absolute;top:22px;right:26px;font-size:13px;font-weight:700;color:#C3D5DC;
  font-variant-numeric:tabular-nums;
}

/* 流程 */
.flow-wrap{display:grid;gap:28px;align-items:center}
@media (min-width:1024px){.flow-wrap{grid-template-columns:5fr 7fr;gap:48px}}
.flow-media{border-radius:20px;overflow:hidden;box-shadow:var(--sh-md);border:1px solid var(--line);background:#fff}
.flow-media img{width:100%;height:240px;object-fit:cover}
@media (min-width:1024px){.flow-media img{height:360px}}
.flow-list{display:grid;gap:16px}
.flow-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;
  display:flex;gap:16px;align-items:flex-start;box-shadow:var(--sh-xs);
  transition:box-shadow var(--t),transform var(--t);
}
.flow-item:hover{box-shadow:var(--sh-sm);transform:translateY(-2px)}
.flow-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:4px}
.flow-item p{font-size:14px;line-height:1.75;color:var(--text)}

/* 数据条 */
.stat-band{background:var(--brand-900);padding:56px 0;color:#fff}
@media (min-width:1024px){.stat-band{padding:72px 0}}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0}
@media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat-cell{padding:18px 16px;border-left:1px solid rgba(255,255,255,.16)}
.stat-cell:first-child{border-left:0}
@media (max-width:1023.98px){
  .stat-cell{border-left:0}
  .stat-cell:nth-child(odd){border-left:0}
  .stat-cell:nth-child(even){border-left:1px solid rgba(255,255,255,.16)}
}
.stat-num{
  font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.1;
  color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat-cell:nth-child(2n) .stat-num{color:var(--accent)}
.stat-label{font-size:13px;color:#BCD3DA;margin-top:8px;line-height:1.7}

/* FAQ */
.faq-split{display:grid;gap:28px}
@media (min-width:1024px){.faq-split{grid-template-columns:4fr 8fr;gap:48px}}
.faq-aside{position:relative}
@media (min-width:1024px){.faq-aside{position:sticky;top:140px;align-self:start}}
.faq-aside h2{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--ink);line-height:1.3;margin-bottom:14px}
.faq-aside p{font-size:15px;color:var(--text);margin-bottom:18px}
.faq-list{display:grid;gap:10px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--sh-xs);overflow:hidden;transition:box-shadow var(--t),border-color var(--t);
}
.faq-item.is-open{border-color:rgba(13,110,138,.35);box-shadow:var(--sh-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand-600)}
.faq-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;background:var(--brand-100);
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:600;line-height:1;transition:transform var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--text)}
.faq-a-inner .tip{
  margin-top:12px;padding:12px 14px;border-radius:10px;background:var(--brand-50);
  border-left:3px solid var(--brand-600);font-size:14px;color:var(--brand-700);
}

/* CTA 通栏 */
.cta-band{background:var(--brand-600);color:#fff;padding:40px 0}
@media (min-width:1024px){.cta-band{padding:52px 0}}
.cta-inner{display:flex;flex-direction:column;gap:22px}
@media (min-width:768px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between}}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin-bottom:8px}
.cta-inner p{font-size:15px;color:#D8E9EE;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}
.cta-actions .btn{flex:1 1 150px}
@media (min-width:640px){.cta-actions .btn{flex:0 0 auto}}

/* 页脚 */
.site-foot{background:var(--brand-900);color:#BCD3DA;padding:56px 0 0;margin-top:0}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:4fr 2fr 3fr 3fr;gap:40px}}
.foot-brand .logo-text strong{color:#fff}
.foot-brand .logo-text em{color:var(--lime)}
.foot-brand p{font-size:14px;line-height:1.8;color:#BCD3DA;margin-top:16px;max-width:300px}
.foot-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:#BCD3DA;display:inline-block;transition:color var(--t),transform var(--t)}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-contact li{font-size:14px;line-height:1.9;margin-bottom:8px;color:#BCD3DA}
.foot-contact b{color:#fff;font-weight:600}
.foot-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8AA0AA;
}
.foot-bottom p{line-height:1.7}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms ease,transform 420ms ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: article */
:root{
  --c-600:#0D6E8A;
  --c-700:#0A5A70;
  --c-900:#073B4C;
  --c-100:#E6F3F7;
  --c-50:#F4F9FB;
  --acc:#FF8A3D;
  --acc-50:#FFF1E6;
  --lime:#C7E85A;
  --t-900:#0F2A33;
  --t-600:#4A6270;
  --t-400:#8AA0AA;
  --line:#E3ECF0;
  --page:#F5F9FA;
  --alt:#EAF4F7;
  --card:#FFFFFF;
  --r-s:8px; --r-m:12px; --r-l:16px; --r-xl:22px; --r-p:999px;
  --sh-xs:0 1px 2px rgba(11,42,51,.06);
  --sh-sm:0 4px 12px rgba(11,42,51,.06);
  --sh-md:0 10px 30px rgba(11,42,51,.08);
  --sh-lg:0 20px 48px rgba(11,42,51,.12);
  --sh-brand:0 12px 28px rgba(13,110,138,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;color:var(--t-600);background:var(--page);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container-x{padding:0 24px;}}
@media (min-width:1280px){.container-x{padding:0 32px;}}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(13,110,138,.28);border-radius:8px;}

/* 顶栏 */
.topbar{background:var(--c-900);color:#C6DDE4;font-size:13px;display:none;}
@media (min-width:768px){.topbar{display:block;}}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px;}
.topbar-inner p{margin:0;}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right span{color:#9FC2CC;}
.topbar-right a{color:#fff;font-weight:600;transition:color .18s var(--ease);}
.topbar-right a:hover{color:var(--lime);}

/* 头部 */
.site-head{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .18s var(--ease);}
.site-head.is-scrolled{box-shadow:var(--sh-sm);}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px;}
.logo{display:flex;align-items:center;gap:10px;}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#0D6E8A,#0A5A70);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800;letter-spacing:.5px;box-shadow:var(--sh-brand);flex:none;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:20px;font-weight:700;color:var(--t-900);letter-spacing:-.01em;}
.logo-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--c-600);letter-spacing:.06em;}
nav.nav-main{display:none;align-items:center;gap:6px;}
@media (min-width:1024px){nav.nav-main{display:flex;}}
.nav-link{position:relative;display:inline-block;padding:7px 12px;border-radius:var(--r-p);font-size:15px;font-weight:500;color:var(--t-900);transition:color .18s var(--ease),background-color .18s var(--ease);}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-600);transform:scaleX(0);transform-origin:center;transition:transform .18s var(--ease);}
.nav-link:hover{color:var(--c-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-600);background:var(--c-100);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.head-actions{display:flex;align-items:center;gap:12px;}

/* 按钮 */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-m);background:var(--c-600);color:#fff;font-size:15px;font-weight:600;border:1px solid transparent;box-shadow:var(--sh-xs);transition:background-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);}
.btn-primary:hover{background:var(--c-700);transform:translateY(-1px);box-shadow:var(--sh-brand);}
.btn-primary:active{transform:scale(.98);}
.btn-primary.btn-sm{height:40px;padding:0 20px;}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:var(--r-m);background:#fff;border:1.5px solid var(--c-600);color:var(--c-700);font-size:15px;font-weight:600;transition:background-color .18s var(--ease),transform .18s var(--ease);}
.btn-ghost:hover{background:var(--c-100);transform:translateY(-1px);}
.btn-ghost:active{transform:scale(.98);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-600);font-size:15px;font-weight:600;transition:color .18s var(--ease);}
.btn-text::after{content:"→";transition:transform .18s var(--ease);}
.btn-text:hover{color:var(--c-700);}
.btn-text:hover::after{transform:translateX(4px);}
.btn-light{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 26px;border-radius:var(--r-m);background:#fff;color:var(--c-700);font-size:15px;font-weight:600;box-shadow:var(--sh-sm);transition:transform .18s var(--ease),box-shadow .18s var(--ease);}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--sh-md);}

/* 汉堡与抽屉 */
.burger{width:44px;height:44px;border-radius:var(--r-m);border:1px solid var(--line);background:#fff;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-600);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (min-width:1024px){.burger{display:none;}}
.drawer-mask{position:fixed;inset:0;background:rgba(7,59,76,.45);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s var(--ease),visibility .2s var(--ease);z-index:60;}
.drawer-mask.is-open{opacity:1;visibility:visible;pointer-events:auto;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:#fff;border-radius:20px 0 0 20px;padding:20px;overflow-y:auto;z-index:61;transform:translateX(100%);visibility:hidden;transition:transform .25s var(--ease),visibility .25s var(--ease);}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-title{font-size:16px;font-weight:700;color:var(--t-900);}
.drawer-close{width:36px;height:36px;border-radius:var(--r-s);border:1px solid var(--line);background:#fff;color:var(--c-700);display:grid;place-items:center;}
.drawer-link{display:flex;align-items:center;height:52px;font-size:15px;color:var(--t-900);border-bottom:1px solid var(--line);}
.drawer-link.is-active{color:var(--c-600);font-weight:600;}
.drawer-cta{margin-top:20px;width:100%;}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;align-items:center;gap:8px;height:52px;font-size:14px;color:var(--t-400);white-space:nowrap;overflow:hidden;}
.crumb a{color:var(--t-600);transition:color .18s var(--ease);}
.crumb a:hover{color:var(--c-600);}
.crumb .current{color:var(--t-900);font-weight:600;overflow:hidden;text-overflow:ellipsis;}
.crumb .sep{color:#C3D3DA;}

/* 文章头 */
.article-hero{background:#fff;padding:44px 0 36px;border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.article-hero::before{content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(13,110,138,.10),rgba(13,110,138,0) 68%);pointer-events:none;}
.hero-inner{position:relative;max-width:900px;}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-p);background:var(--c-100);color:var(--c-700);font-size:12px;font-weight:600;letter-spacing:.02em;}
.article-title{margin:16px 0 0;font-size:clamp(26px,4vw,40px);line-height:1.22;font-weight:800;letter-spacing:-.01em;color:var(--t-900);}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:var(--t-400);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;}
.article-meta .meta-sep{width:1px;height:12px;background:var(--line);}

/* 布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding-top:40px;padding-bottom:56px;}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;}}
.article-main{min-width:0;}
.article-cover{margin:0 0 32px;max-width:820px;}
.article-cover img{width:100%;border-radius:18px;box-shadow:var(--sh-sm);aspect-ratio:16/10;object-fit:cover;}

/* 正文排版 */
.article-body{max-width:820px;font-size:16px;line-height:1.9;color:var(--t-600);}
.article-body p{margin:0 0 1.1em;}
.article-body h2{position:relative;margin:2em 0 .7em;padding-left:14px;font-size:24px;font-weight:700;line-height:1.4;color:var(--t-900);}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--c-600);}
.article-body h3{margin:1.4em 0 .6em;font-size:20px;font-weight:600;line-height:1.45;color:var(--t-900);}
.article-body h4{margin:1.2em 0 .5em;font-size:17px;font-weight:600;color:var(--t-900);}
.article-body ul{list-style:disc;padding-left:1.35em;margin:0 0 1.2em;}
.article-body ol{list-style:decimal;padding-left:1.45em;margin:0 0 1.2em;}
.article-body li{margin:8px 0;line-height:1.8;}
.article-body ul li::marker{color:var(--c-600);}
.article-body ol li::marker{color:var(--c-600);font-weight:700;}
.article-body blockquote{margin:1.4em 0;padding:16px 20px;background:var(--c-50);border-left:4px solid var(--c-600);border-radius:0 12px 12px 0;font-size:15.5px;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{max-width:100%;height:auto;border-radius:14px;margin:1.4em 0 .6em;}
.article-body figcaption{font-size:13px;color:var(--t-400);text-align:center;margin:0 0 1.4em;}
.article-body a{color:var(--c-600);text-decoration:underline;text-decoration-style:dashed;text-decoration-thickness:1px;text-underline-offset:3px;}
.article-body a:hover{text-decoration-style:solid;color:var(--c-700);}
.article-body strong{color:var(--t-900);font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;background:#fff;}
.article-body th{background:var(--c-100);color:var(--c-700);font-weight:600;text-align:left;padding:12px 14px;border:1px solid var(--line);}
.article-body td{padding:12px 14px;border:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFCFD;}
@media (max-width:767px){.article-body table{display:block;overflow-x:auto;white-space:nowrap;}}

/* 空态 */
.empty-card{border:1.5px dashed rgba(13,110,138,.35);border-radius:var(--r-l);background:#fff;padding:40px 24px;text-align:center;max-width:820px;}
.empty-icon{width:48px;height:48px;margin:0 auto 14px;color:var(--c-600);}
.empty-title{font-size:20px;font-weight:700;color:var(--t-900);margin-bottom:6px;}
.empty-desc{font-size:14px;color:var(--t-400);margin-bottom:20px;}

/* 尾部 */
.article-foot{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);max-width:820px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-p);background:var(--c-100);color:var(--c-700);font-size:13px;font-weight:500;transition:background-color .18s var(--ease);}
.tag:hover{background:#D5EAF1;}
.tag-soft{background:#EEF2F4;color:#6B818C;}
.back-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0;}
@media (min-width:1024px){.article-side{position:sticky;top:96px;align-self:start;}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:22px;box-shadow:var(--sh-xs);}
.side-card-tint{background:var(--c-50);border-color:#D8EAF0;}
.side-title{position:relative;padding-left:11px;margin-bottom:14px;font-size:16px;font-weight:700;color:var(--t-900);}
.side-title::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--c-600);}
.side-list li+li{border-top:1px solid var(--line);}
.side-list a{display:flex;align-items:center;gap:8px;padding:11px 0;font-size:15px;color:var(--t-600);line-height:1.5;transition:color .18s var(--ease),transform .18s var(--ease);}
.side-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-100);flex:none;transition:background-color .18s var(--ease);}
.side-list a:hover{color:var(--c-600);transform:translateX(2px);}
.side-list a:hover::before{background:var(--c-600);}
.side-desc{font-size:14px;line-height:1.8;color:var(--t-600);margin-bottom:16px;}
.side-btn{width:100%;}

/* 继续了解 */
.related-sec{background:var(--alt);padding:var(--sec-pad,56px) 0;border-top:1px solid var(--line);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--t-900);line-height:1.3;}
.sec-head p{margin-top:8px;font-size:15px;color:var(--t-600);}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-xs);display:flex;flex-direction:column;transition:transform .18s var(--ease),box-shadow .18s var(--ease);}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
.card-thumb{aspect-ratio:16/10;overflow:hidden;}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;font-weight:600;color:var(--t-900);line-height:1.5;}
.card-body p{font-size:14px;line-height:1.8;color:var(--t-600);}
.card-body .btn-text{margin-top:auto;font-size:14px;}

/* CTA 通栏 */
.cta-band{background:var(--c-900);padding:56px 0;}
.cta-inner{display:flex;flex-direction:column;align-items:flex-start;gap:20px;}
@media (min-width:768px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;}}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:#fff;line-height:1.35;}
.cta-inner p{margin-top:10px;font-size:15px;color:#B9D3DB;max-width:620px;}

/* 页脚 */
.site-foot{background:var(--c-900);color:#BCD3DA;padding:56px 0 0;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.foot-grid{grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#BCD3DA;max-width:320px;}
.site-foot .logo-text strong{color:#fff;}
.site-foot .logo-text em{color:#8FD3E3;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links li{margin-bottom:10px;}
.foot-links a{display:inline-block;font-size:14px;color:#BCD3DA;transition:color .18s var(--ease),transform .18s var(--ease);}
.foot-links a:hover{color:#fff;transform:translateX(2px);}
.foot-contact li{margin-bottom:10px;font-size:14px;}
.foot-contact b{color:#fff;font-weight:600;}
.foot-bottom{margin-top:40px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-direction:column;gap:8px;font-size:13px;color:#93B3BD;}
@media (min-width:768px){.foot-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}
.foot-bottom p{margin:0;}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c600:#0D6E8A; --c700:#0A5A70; --c900:#073B4C;
  --c-light:#E6F3F7; --c-lighter:#F4F9FB;
  --accent:#FF8A3D; --accent-light:#FFF1E6; --lime:#C7E85A;
  --ink:#0F2A33; --body:#4A6270; --muted:#8AA0AA;
  --line:#E3ECF0; --page:#F5F9FA; --alt:#EAF4F7; --card:#FFFFFF;
  --r-s:8px; --r-m:12px; --r-l:18px; --r-xl:22px;
  --sh-xs:0 1px 2px rgba(11,42,51,.06);
  --sh-sm:0 4px 12px rgba(11,42,51,.06);
  --sh-md:0 10px 30px rgba(11,42,51,.08);
  --sh-lg:0 20px 48px rgba(11,42,51,.12);
  --brand-sh:0 12px 28px rgba(13,110,138,.22);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--page);color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container-x{max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container-x{padding:0 24px;}}
@media(min-width:1280px){.container-x{padding:0 32px;}}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--c900);color:#D7E7EC;font-size:13px;height:38px;display:none;}
@media(min-width:768px){.topbar{display:block;}}
.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-inner b{color:#fff;font-weight:600;}
.topbar-links{display:flex;gap:18px;}
.topbar-links a{color:#BCD3DA;transition:color var(--t);}
.topbar-links a:hover{color:#fff;}

/* ---------- Header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--t);}
.site-head.is-scrolled{box-shadow:var(--sh-sm);}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,var(--c600),var(--c900));
  color:#fff;font-weight:800;font-size:15px;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--brand-sh);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.logo-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--c600);}
.nav-main{align-items:center;gap:26px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink);padding:8px 12px;border-radius:999px;transition:color var(--t),background var(--t);}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:calc(100% - 24px);height:2px;
  background:var(--c600);transform:scaleX(0) translateX(-50%);transform-origin:center;
  transition:transform var(--t);left:12px;
}
.nav-link:hover{color:var(--c600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c600);background:var(--c-light);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.head-cta{height:40px;padding:0 20px;border-radius:12px;align-items:center;justify-content:center;}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border:0;border-radius:12px;cursor:pointer;
  background:var(--c600);color:#fff;font-size:15px;font-weight:600;
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary:hover{background:var(--c700);transform:translateY(-1px);box-shadow:var(--brand-sh);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:12px;cursor:pointer;
  background:#fff;color:var(--c600);font-size:15px;font-weight:600;
  border:1.5px solid var(--c600);
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-ghost:hover{background:var(--c-light);transform:translateY(-1px);}
.btn-ghost:active{transform:scale(.98);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c600);font-size:15px;font-weight:600;}
.btn-text span{transition:transform var(--t);}
.btn-text:hover span{transform:translateX(4px);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(13,110,138,.18);
}

/* ---------- 汉堡与抽屉 ---------- */
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:20px;height:2px;background:var(--c600);border-radius:2px;transition:transform var(--t),opacity var(--t);}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{position:fixed;inset:0;background:rgba(7,59,76,.45);opacity:0;pointer-events:none;transition:opacity var(--t);z-index:60;}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:#fff;z-index:61;
  border-radius:20px 0 0 20px;transform:translateX(102%);transition:transform var(--t);
  display:flex;flex-direction:column;padding:22px 18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-nav a{display:flex;align-items:center;min-height:52px;font-size:16px;font-weight:500;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-nav a.is-active{color:var(--c600);font-weight:700;}
.drawer-cta{margin-top:auto;padding-top:20px;}
.drawer-cta .btn-primary{width:100%;}

/* ---------- 面包屑 ---------- */
.crumb{background:#fff;border-bottom:1px solid var(--line);}
.crumb-inner{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:14px 0;overflow:hidden;white-space:nowrap;}
.crumb-inner a{color:var(--c600);}
.crumb-inner a:hover{text-decoration:underline;}
.crumb-inner .cur{color:var(--ink);font-weight:700;overflow:hidden;text-overflow:ellipsis;}

/* ---------- Hero ---------- */
.hero2{background:#fff;border-bottom:1px solid var(--line);}
.hero2-inner{display:grid;gap:28px;padding:44px 0 40px;}
@media(min-width:1024px){.hero2-inner{grid-template-columns:7fr 5fr;align-items:center;gap:44px;padding:56px 0 52px;}}
.tag-line{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--c600);background:var(--c-light);border-radius:999px;padding:6px 14px;}
.hero2 h1{
  font-size:clamp(30px,4.6vw,46px);line-height:1.18;font-weight:800;color:var(--ink);
  letter-spacing:-.01em;margin:16px 0 0;padding-left:18px;position:relative;
}
.hero2 h1::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c600);}
.hero2 h1 mark{background:linear-gradient(transparent 62%,rgba(13,110,138,.22) 62%);color:inherit;padding:0 2px;}
.hero2 .lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--body);max-width:640px;}
.hero2-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero2-cta .btn-primary,.hero2-cta .btn-ghost{flex:1 1 200px;}
@media(min-width:640px){.hero2-cta .btn-primary,.hero2-cta .btn-ghost{flex:0 0 auto;}}
.hero2-media{position:relative;}
.hero2-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--sh-md);}
.hero2-float{
  position:absolute;left:-10px;bottom:-18px;background:#fff;border-radius:14px;padding:12px 16px;
  box-shadow:var(--sh-lg);border:1px solid var(--line);min-width:150px;
}
.hero2-float b{display:block;font-size:22px;font-weight:800;color:var(--c600);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero2-float small{font-size:12px;color:var(--muted);}

/* ---------- Chips ---------- */
.chips-wrap{background:#fff;border-bottom:1px solid var(--line);}
.chips-scroll{display:flex;gap:10px;overflow-x:auto;padding:16px 0;scrollbar-width:none;}
.chips-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;font-size:14px;font-weight:600;border-radius:999px;padding:9px 18px;cursor:pointer;
  background:#fff;color:var(--body);border:1px solid var(--line);transition:all var(--t);
}
.chip:hover{border-color:var(--c600);color:var(--c600);}
.chip.is-on{background:var(--c600);color:#fff;border-color:var(--c600);box-shadow:var(--brand-sh);}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0;}
@media(min-width:768px){.section{padding:72px 0;}}
@media(min-width:1024px){.section{padding:96px 0;}}
.sec-head{max-width:760px;}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;color:var(--ink);padding-left:16px;position:relative;}
.sec-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c600);}
.sec-sub{margin-top:14px;font-size:16px;color:var(--body);}
.title-rule{width:32px;height:4px;border-radius:2px;background:var(--c600);margin-top:18px;}

/* ---------- 交错长条 ---------- */
.track-row{display:grid;gap:26px;padding:34px 0;border-bottom:1px solid var(--line);}
.track-row:first-of-type{padding-top:0;}
.track-row:last-of-type{border-bottom:0;padding-bottom:0;}
@media(min-width:1024px){
  .track-row{grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:44px 0;}
  .track-row.rev .track-media{order:2;}
}
.track-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-l);box-shadow:var(--sh-sm);transition:transform 700ms cubic-bezier(.2,.7,.3,1);}
.track-media{overflow:hidden;border-radius:var(--r-l);}
.track-row:hover .track-media img{transform:scale(1.04);}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--c600);background:var(--c-light);border-radius:999px;padding:5px 12px;}
.badge-accent{color:#B65A18;background:var(--accent-light);}
.badge-soft{color:#6B818C;background:#EEF2F4;}
.track-body h3{font-size:21px;line-height:1.45;font-weight:600;color:var(--ink);margin-top:14px;}
.track-body p{margin-top:12px;font-size:15.5px;color:var(--body);}
.track-meta{margin-top:16px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center;}
.track-meta span{display:inline-flex;align-items:center;gap:6px;}
.track-meta i{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--muted);}
.track-body .btn-text{margin-top:18px;}

/* ---------- 数据小结 ---------- */
.stat-strip{background:var(--c-lighter);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(3,1fr);gap:0;}}
.stat-cell{text-align:left;padding:0 8px;}
@media(min-width:1024px){.stat-cell{padding:0 32px;border-right:1px solid rgba(13,110,138,.16);}
.stat-cell:last-child{border-right:0;}}
.stat-cell b{display:block;font-size:clamp(30px,4vw,42px);font-weight:800;color:var(--c600);line-height:1.15;font-variant-numeric:tabular-nums;}
.stat-cell strong{display:block;margin-top:8px;font-size:15px;font-weight:600;color:var(--ink);}
.stat-cell small{display:block;margin-top:6px;font-size:13px;color:var(--muted);}

/* ---------- 流程 ---------- */
.flow{display:grid;gap:22px;}
@media(min-width:1024px){.flow{grid-template-columns:repeat(4,1fr);gap:0;}}
.flow-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:24px;box-shadow:var(--sh-xs);}
@media(min-width:1024px){.flow-step{border:0;box-shadow:none;background:transparent;padding:0 22px;}}
.flow-num{
  width:44px;height:44px;border-radius:50%;background:var(--c600);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;font-variant-numeric:tabular-nums;
  box-shadow:var(--brand-sh);
}
.flow-step h3{margin-top:16px;font-size:18px;font-weight:600;color:var(--ink);}
.flow-step p{margin-top:10px;font-size:14.5px;color:var(--body);}
@media(min-width:1024px){
  .flow-step::after{content:"";position:absolute;top:22px;left:56px;right:-22px;height:1.5px;background:linear-gradient(90deg,var(--c600),rgba(13,110,138,.15));}
  .flow-step:last-child::after{display:none;}
}

/* ---------- 场景标签区 ---------- */
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--sh-xs);padding:28px;}
.scene-list{display:grid;gap:14px;margin-top:20px;}
@media(min-width:768px){.scene-list{grid-template-columns:repeat(2,1fr);gap:16px 28px;}}
.scene-list li{display:flex;gap:12px;font-size:15px;color:var(--body);}
.scene-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:6px;
  background:var(--c-light);border:1.5px solid rgba(13,110,138,.35);
  background-image:linear-gradient(45deg,transparent 44%,var(--c600) 44%,var(--c600) 56%,transparent 56%);
  background-size:10px 10px;background-position:center;background-repeat:no-repeat;
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;gap:28px;}
@media(min-width:1024px){.faq-layout{grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-aside{position:sticky;top:100px;}}
.faq-list{display:grid;gap:10px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-xs);overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:18px 20px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-ico{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--c-light);color:var(--c600);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;line-height:1;
  transition:transform var(--t),background var(--t);
}
.faq-item.is-open .faq-ico{transform:rotate(180deg);background:var(--c600);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{padding:0 20px 20px;margin-top:4px;}
.faq-a-inner p{font-size:15px;line-height:1.8;color:var(--body);background:var(--c-lighter);border-radius:10px;padding:14px 16px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--c600);border-radius:var(--r-xl);padding:32px 26px;display:grid;gap:20px;align-items:center;}
@media(min-width:768px){.cta-band{grid-template-columns:1fr auto;padding:40px 44px;gap:32px;}}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;color:#fff;line-height:1.35;}
.cta-band p{margin-top:10px;font-size:15px;color:#D6EAF1;}
.cta-band .btn-light{
  display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 26px;
  background:#fff;color:var(--c700);font-weight:700;font-size:15px;border-radius:12px;border:0;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t);
}
.cta-band .btn-light:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,0,0,.18);}
.cta-band .btn-light:active{transform:scale(.98);}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c900);color:#BCD3DA;padding:56px 0 26px;margin-top:8px;}
.foot-grid{display:grid;gap:32px;}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.foot-grid{grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}}
.foot-brand .logo-text strong{color:#fff;}
.foot-brand .logo-text em{color:#7FC6DA;}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9FBEC7;max-width:320px;}
.foot-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.foot-links li,.foot-contact li{font-size:14px;line-height:1.7;margin-bottom:11px;}
.foot-links a{color:#BCD3DA;transition:color var(--t),transform var(--t);display:inline-block;}
.foot-links a:hover{color:#fff;transform:translateX(-2px);}
.foot-contact b{color:#fff;font-weight:600;}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:#8FB2BC;
}
@media(min-width:768px){.foot-bottom{flex-direction:row;justify-content:space-between;align-items:center;}}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category3 */
:root{
  --c600:#0D6E8A;
  --c700:#0A5A70;
  --c900:#073B4C;
  --c100:#E6F3F7;
  --c50:#F4F9FB;
  --accent:#FF8A3D;
  --accent-50:#FFF1E6;
  --lime:#C7E85A;
  --t1:#0F2A33;
  --t2:#4A6270;
  --t3:#8AA0AA;
  --line:#E3ECF0;
  --bg:#F5F9FA;
  --bg2:#EAF4F7;
  --card:#FFFFFF;
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --r-xl:22px;
  --sh-xs:0 1px 2px rgba(11,42,51,.06);
  --sh-sm:0 4px 12px rgba(11,42,51,.06);
  --sh-md:0 10px 30px rgba(11,42,51,.08);
  --sh-lg:0 20px 48px rgba(11,42,51,.12);
  --sh-brand:0 12px 28px rgba(13,110,138,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;color:var(--t2);background:var(--bg);
}
h1,h2,h3,h4{margin:0;color:var(--t1);line-height:1.25;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(13,110,138,.28);border-radius:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.container-x{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 24px}}
@media (min-width:1280px){.container-x{padding:0 32px}}

/* 顶栏 */
.topbar{background:var(--c900);color:#D7E7EC;font-size:13px;display:none}
@media (min-width:768px){.topbar{display:block}}
.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-inner span{color:#9FC3CE}
.topbar-inner b{color:#fff;font-weight:600}

/* Header */
.site-head{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow 180ms var(--ease)}
.site-head.is-scrolled{box-shadow:var(--sh-sm)}
.head-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;min-width:0}
.logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--c600);color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;letter-spacing:.02em;box-shadow:var(--sh-xs)}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text strong{font-size:19px;font-weight:700;color:var(--t1);letter-spacing:.01em}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--c600);letter-spacing:.05em}
.nav-main{display:none;align-items:center;gap:6px;margin-left:auto}
@media (min-width:1024px){.nav-main{display:flex}}
.nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--t1);padding:9px 12px;border-radius:999px;transition:color 180ms var(--ease),background 180ms var(--ease)}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--c600);border-radius:2px;transform:scaleX(0);transform-origin:center;transition:transform 180ms var(--ease)}
.nav-link:hover{color:var(--c600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c600);background:var(--c100);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.head-actions{display:flex;align-items:center;gap:10px}
.head-cta{display:none}
@media (min-width:1024px){.head-cta{display:inline-flex}}
.burger{width:44px;height:44px;border-radius:var(--r-m);border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease)}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c600);transition:transform 180ms var(--ease),opacity 180ms var(--ease)}
.burger:hover{border-color:var(--c600);box-shadow:var(--sh-xs)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.burger{display:none}}

/* 移动面板 */
.mask{position:fixed;inset:0;background:rgba(7,59,76,.45);opacity:0;visibility:hidden;transition:opacity 200ms var(--ease),visibility 200ms var(--ease);z-index:55}
.mask.is-open{opacity:1;visibility:visible}
.mobile-panel{position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;background:#fff;border-radius:20px 0 0 20px;box-shadow:var(--sh-lg);z-index:60;transform:translateX(102%);transition:transform 260ms var(--ease);padding:22px 20px;overflow-y:auto;display:flex;flex-direction:column}
.mobile-panel.is-open{transform:translateX(0)}
.mp-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.mp-title{font-size:15px;font-weight:600;color:var(--t1)}
.mp-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--c600);font-size:18px;line-height:1}
.mp-list{margin-top:8px}
.mp-list a{display:flex;align-items:center;min-height:52px;font-size:15px;font-weight:500;color:var(--t1);border-bottom:1px solid var(--line);transition:color 180ms var(--ease),padding-left 180ms var(--ease)}
.mp-list a:hover,.mp-list a.is-active{color:var(--c600);padding-left:6px}
.mp-foot{margin-top:auto;padding-top:20px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-m);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:transform 180ms var(--ease),background 180ms var(--ease),color 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease)}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--c600);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{background:var(--c700);transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--c600);color:var(--c600)}
.btn-ghost:hover{background:var(--c100)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c600);font-size:15px;font-weight:600;padding:6px 0}
.btn-text .arw{transition:transform 180ms var(--ease)}
.btn-text:hover .arw{transform:translateX(4px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* Hero */
.hero-lite{background:var(--c50);border-bottom:1px solid var(--line);padding:40px 0 44px;position:relative;overflow:hidden}
.hero-lite::after{content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(13,110,138,.10),rgba(13,110,138,0) 68%);pointer-events:none}
.hero-lite-inner{display:grid;gap:28px;align-items:center;position:relative;z-index:1}
@media (min-width:900px){.hero-lite-inner{grid-template-columns:1.32fr .95fr;gap:40px}}
.eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--c700);background:var(--c100);border-radius:999px;padding:5px 14px;letter-spacing:.03em}
.hero-lite h1{font-size:clamp(27px,4.1vw,40px);font-weight:800;letter-spacing:-.01em;margin:14px 0 12px}
.hero-lite h1 mark{background:linear-gradient(180deg,rgba(255,138,61,0) 62%,rgba(255,138,61,.34) 62%);color:inherit;padding:0 2px}
.lede{font-size:17px;line-height:1.8;color:var(--t2);max-width:620px}
.hero-lite .btn-row{margin-top:22px}
.hero-lite-img{width:100%;border-radius:20px;box-shadow:var(--sh-md);aspect-ratio:16/10;object-fit:cover;margin-top:6px}

/* 面包屑 */
.crumb{background:#fff;border-bottom:1px solid var(--line)}
.crumb-inner{display:flex;align-items:center;gap:8px;height:48px;font-size:14px;color:var(--t3);overflow:hidden;white-space:nowrap}
.crumb-inner a{color:var(--c600)}
.crumb-inner a:hover{text-decoration:underline}
.crumb-inner .sep{color:#C6D6DC}
.crumb-inner .now{color:var(--t1);font-weight:600;text-overflow:ellipsis;overflow:hidden}

/* 通用板块 */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1280px){.section{padding:96px 0}}
.section-alt{background:var(--bg2)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head .tag{display:inline-block;font-size:12.5px;font-weight:600;color:var(--c700);background:var(--c100);border-radius:999px;padding:5px 13px;margin-bottom:12px}
.sec-head h2{font-size:clamp(23px,2.8vw,32px);position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--c600)}
.sec-head .rule{width:52px;height:3px;border-radius:2px;background:var(--accent);margin:14px 0 14px 16px}
.sec-head p{font-size:16px;color:var(--t2);padding-left:16px}

/* 方案对照卡 */
.plan-grid{display:grid;gap:20px;align-items:start}
@media (min-width:860px){.plan-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.plan-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);padding:26px 22px;box-shadow:var(--sh-sm);transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease)}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.plan-card--featured{border:1.5px solid var(--c600);background:#fff;padding:38px 24px 30px;box-shadow:var(--sh-md)}
.plan-card--featured:hover{box-shadow:var(--sh-lg)}
.plan-flag{position:absolute;top:-14px;left:22px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;border-radius:999px;padding:5px 14px;letter-spacing:.03em;box-shadow:0 8px 18px rgba(255,138,61,.28)}
.plan-name{font-size:20px;font-weight:700;color:var(--t1)}
.plan-sub{font-size:13.5px;color:var(--t3);margin-top:6px}
.plan-term{margin:18px 0 4px;font-size:26px;font-weight:800;color:var(--c600);font-variant-numeric:tabular-nums;line-height:1.2}
.plan-card--featured .plan-term{color:var(--c700)}
.plan-term small{font-size:13px;font-weight:500;color:var(--t3);margin-left:6px}
.plan-desc{font-size:14.5px;line-height:1.8;color:var(--t2);margin-top:12px;padding-top:14px;border-top:1px solid var(--line)}
.plan-feats{margin:16px 0 22px;display:flex;flex-direction:column;gap:10px}
.plan-feats li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--t2)}
.plan-feats .ck{flex:0 0 18px;width:18px;height:18px;margin-top:4px;border-radius:50%;background:var(--c100);color:var(--c700);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.plan-card .btn{width:100%}
.plan-note{font-size:13px;color:var(--t3);margin-top:14px;text-align:center}

/* 对照表 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-sm);background:#fff;-webkit-overflow-scrolling:touch}
.cmp-table{width:100%;border-collapse:collapse;min-width:660px}
.cmp-table caption{text-align:left;font-size:14px;color:var(--t3);padding:14px 18px;border-bottom:1px solid var(--line)}
.cmp-table th,.cmp-table td{padding:15px 18px;font-size:15px;border-bottom:1px solid var(--line);text-align:left}
.cmp-table thead th{background:var(--c100);color:var(--c700);font-weight:600;font-size:15px;white-space:nowrap}
.cmp-table thead th.col-hl{background:#D8ECF2;color:var(--c900)}
.cmp-table tbody tr:nth-child(even) td{background:#FAFCFD}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table td.col-hl{background:#F4F9FB;font-weight:600;color:var(--t1)}
.cmp-table tbody tr:nth-child(even) td.col-hl{background:#EDF6F9}
.cmp-table .yes{color:var(--c600);font-weight:700}
.cmp-table .no{color:#B7C7CE}
.cmp-table td:first-child{color:var(--t1);font-weight:500;white-space:nowrap}

/* 场景卡 */
.scene-grid{display:grid;gap:20px}
@media (min-width:768px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.scene-grid{grid-template-columns:repeat(3,1fr)}}
.scene-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-sm);transition:transform 180ms var(--ease),box-shadow 180ms var(--ease)}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.scene-thumb{aspect-ratio:16/10;overflow:hidden}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.scene-card:hover .scene-thumb img{transform:scale(1.04)}
.scene-body{padding:20px}
.scene-body h3{font-size:18px;margin-bottom:8px}
.scene-body p{font-size:14.5px;line-height:1.8;color:var(--t2)}
.badge{display:inline-block;font-size:12px;font-weight:600;color:var(--c700);background:var(--c100);border-radius:999px;padding:4px 12px;margin-bottom:10px}
.badge-lime{background:rgba(199,232,90,.28);color:#4A6A0F}

/* 流程 */
.steps{display:grid;gap:20px;counter-reset:step}
@media (min-width:860px){.steps{grid-template-columns:repeat(4,1fr);gap:24px}}
.step{position:relative;padding-top:6px}
@media (min-width:860px){
  .step:not(:last-child)::after{content:"";position:absolute;top:22px;left:calc(100% - 6px);width:calc(100% - 34px);height:2px;background:linear-gradient(90deg,rgba(13,110,138,.35),rgba(13,110,138,.08));border-radius:2px}
  .step:not(:last-child)::before{content:"";position:absolute;top:17px;right:-14px;width:10px;height:10px;border-top:2px solid rgba(13,110,138,.35);border-right:2px solid rgba(13,110,138,.35);transform:rotate(45deg)}
}
.step-num{width:44px;height:44px;border-radius:50%;background:var(--c600);color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-brand);font-variant-numeric:tabular-nums}
.step h3{font-size:17px;margin:14px 0 8px}
.step p{font-size:14.5px;line-height:1.8;color:var(--t2)}

/* FAQ */
.faq-layout{display:grid;gap:28px}
@media (min-width:1024px){.faq-layout{grid-template-columns:4fr 8fr;gap:44px}}
.faq-side{position:relative}
@media (min-width:1024px){.faq-side{position:sticky;top:100px;align-self:start}}
.faq-side h2{font-size:clamp(23px,2.8vw,32px);padding-left:16px;position:relative}
.faq-side h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--c600)}
.faq-side .rule{width:52px;height:3px;border-radius:2px;background:var(--accent);margin:14px 0 14px 16px}
.faq-side p{padding-left:16px;font-size:15.5px}
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow 180ms var(--ease),border-color 180ms var(--ease)}
.faq-item.is-open{border-color:#BFDDE6;box-shadow:var(--sh-sm)}
.faq-q{width:100%;background:transparent;border:0;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:17px 20px;font-size:17px;font-weight:600;color:var(--t1);transition:color 180ms var(--ease)}
.faq-q:hover{color:var(--c600)}
.faq-icon{flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--c100);color:var(--c600);font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center;transition:transform 200ms var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a-inner{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--t2);background:var(--c50);border-top:1px solid var(--line);padding-top:14px}

/* CTA 通栏 */
.cta-band{background:var(--c900);border-radius:var(--r-xl);padding:32px 26px;display:flex;flex-direction:column;gap:20px;align-items:flex-start;box-shadow:var(--sh-md)}
@media (min-width:860px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;gap:32px}}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,27px)}
.cta-band p{color:#B6D2DA;font-size:15px;margin-top:10px;max-width:640px}
.cta-band .btn-primary{background:var(--accent);box-shadow:0 12px 28px rgba(255,138,61,.28)}
.cta-band .btn-primary:hover{background:#F2771F}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-foot{background:var(--c900);color:#BCD3DA;padding:52px 0 22px;margin-top:0}
.foot-grid{display:grid;gap:30px}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.45fr .85fr 1fr 1.1fr;gap:32px}}
.foot-brand .logo-text strong{color:#fff}
.foot-brand .logo-text em{color:#8FD3E6}
.foot-brand .logo-mark{background:var(--c600)}
.foot-brand p{font-size:14px;line-height:1.8;color:#9FC3CE;margin-top:16px;max-width:320px}
.foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.foot-links li,.foot-contact li{font-size:14px;line-height:2}
.foot-links a,.foot-contact a{color:#BCD3DA;display:inline-block;transition:color 180ms var(--ease),transform 180ms var(--ease)}
.foot-links a:hover,.foot-contact a:hover{color:#fff;transform:translateX(2px)}
.foot-contact b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:20px;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:13px;color:#8FB3BE}

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

/* roulang page: category4 */
:root{
    --c-600:#0D6E8A;
    --c-700:#0A5A70;
    --c-900:#073B4C;
    --c-100:#E6F3F7;
    --c-50:#F4F9FB;
    --acc:#FF8A3D;
    --acc-50:#FFF1E6;
    --lime:#C7E85A;
    --t-900:#0F2A33;
    --t-600:#4A6270;
    --t-400:#8AA0AA;
    --line:#E3ECF0;
    --bg:#F5F9FA;
    --bg-alt:#EAF4F7;
    --card:#FFFFFF;
    --r-xs:8px;
    --r-sm:10px;
    --r-md:12px;
    --r-lg:16px;
    --r-xl:22px;
    --sh-xs:0 1px 2px rgba(11,42,51,.06);
    --sh-sm:0 4px 12px rgba(11,42,51,.06);
    --sh-md:0 10px 30px rgba(11,42,51,.08);
    --sh-lg:0 20px 48px rgba(11,42,51,.12);
    --sh-brand:0 12px 28px rgba(13,110,138,.22);
    --ease:cubic-bezier(.2,.7,.3,1);
    --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.85;
    color:var(--t-600);
    background:#fff;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;transition:color 180ms var(--ease);}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  h1,h2,h3,h4{margin:0;color:var(--t-900);font-weight:700;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:none;box-shadow:0 0 0 3px rgba(13,110,138,.18);border-radius:6px;}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.container-x{padding-left:24px;padding-right:24px;}}
  @media (min-width:1280px){.container-x{padding-left:32px;padding-right:32px;}}

  /* ---------- 顶栏 ---------- */
  .topbar{display:none;background:var(--c-900);color:#fff;font-size:13px;height:38px;}
  .topbar-in{display:flex;align-items:center;justify-content:space-between;height:38px;}
  .topbar-in p{margin:0;color:rgba(255,255,255,.82);}
  .topbar-right{display:flex;align-items:center;gap:18px;color:rgba(255,255,255,.82);}
  .topbar-right b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums;}
  .topbar-right span.sep{width:1px;height:14px;background:rgba(255,255,255,.24);display:inline-block;}
  @media (min-width:768px){.topbar{display:block;}}

  /* ---------- Header ---------- */
  .site-head{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow 180ms var(--ease);}
  .site-head.is-scrolled{box-shadow:var(--sh-sm);}
  .head-in{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
  .logo{display:flex;align-items:center;gap:10px;}
  .logo-mark{
    width:40px;height:40px;border-radius:var(--r-md);background:var(--c-600);color:#fff;
    display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:.03em;flex:0 0 40px;
    box-shadow:var(--sh-xs);
  }
  .logo-text strong{display:block;font-size:20px;font-weight:700;color:var(--t-900);line-height:1.15;letter-spacing:-.01em;}
  .logo-text em{display:block;font-style:normal;font-size:12px;font-weight:500;color:var(--c-600);line-height:1.3;letter-spacing:.02em;}
  .nav-main{display:flex;align-items:center;gap:22px;}
  .nav-link{
    position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--t-900);
    padding:6px 2px;white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-600);
    transform:scaleX(0);transform-origin:center;transition:transform 180ms var(--ease);
  }
  .nav-link:hover{color:var(--c-600);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{
    color:var(--c-600);background:var(--c-100);border-radius:999px;padding:6px 14px;font-weight:600;
  }
  .nav-link.is-active::after{transform:scaleX(1);bottom:0;}
  .head-cta{display:flex;align-items:center;gap:12px;}
  @media (max-width:1023px){
    .nav-main{display:none;}
    .head-cta .btn{display:none;}
  }

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-md);
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    transition:all 180ms var(--ease);
  }
  .btn:active{transform:scale(.98);}
  .btn-primary{background:var(--c-600);color:#fff;box-shadow:var(--sh-brand);}
  .btn-primary:hover{background:var(--c-700);transform:translateY(-1px);color:#fff;}
  .btn-ghost{background:#fff;border:1.5px solid var(--c-600);color:var(--c-600);}
  .btn-ghost:hover{background:var(--c-100);}
  .btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-600);font-size:15px;font-weight:600;padding:0;}
  .btn-link .arw{transition:transform 180ms var(--ease);display:inline-block;}
  .btn-link:hover .arw{transform:translateX(4px);}

  /* ---------- 汉堡与抽屉 ---------- */
  .burger{
    width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-sm);
    border:1px solid var(--line);background:#fff;
  }
  .burger i{position:relative;display:block;width:20px;height:2px;background:var(--c-600);border-radius:2px;transition:all 200ms var(--ease);}
  .burger i::before,.burger i::after{
    content:"";position:absolute;left:0;width:20px;height:2px;background:var(--c-600);border-radius:2px;transition:all 200ms var(--ease);
  }
  .burger i::before{top:-6px;}
  .burger i::after{top:6px;}
  .burger.is-open i{background:transparent;}
  .burger.is-open i::before{top:0;transform:rotate(45deg);}
  .burger.is-open i::after{top:0;transform:rotate(-45deg);}
  @media (min-width:1024px){.burger{display:none;}}

  .drawer-mask{
    position:fixed;inset:0;background:rgba(7,59,76,.45);opacity:0;pointer-events:none;
    transition:opacity 200ms var(--ease);z-index:60;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:#fff;
    border-radius:20px 0 0 20px;box-shadow:var(--sh-lg);z-index:61;
    transform:translateX(105%);transition:transform 240ms var(--ease);
    display:flex;flex-direction:column;padding:20px 0;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--line);}
  .drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--c-600);font-size:18px;line-height:1;display:grid;place-items:center;}
  .drawer-nav{padding:8px 0;overflow-y:auto;flex:1;}
  .drawer-nav a{
    display:flex;align-items:center;height:52px;padding:0 20px;font-size:16px;font-weight:500;color:var(--t-900);
    border-bottom:1px solid var(--line);
  }
  .drawer-nav a.is-active{color:var(--c-600);background:var(--c-50);font-weight:600;}
  .drawer-foot{padding:16px 20px 0;border-top:1px solid var(--line);}
  .drawer-foot .btn{width:100%;}

  /* ---------- 面包屑 ---------- */
  .crumb-bar{background:var(--c-50);border-bottom:1px solid var(--line);}
  .crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--t-400);overflow:hidden;white-space:nowrap;padding:12px 0;}
  .crumb a{color:var(--t-400);}
  .crumb a:hover{color:var(--c-600);}
  .crumb .sep{color:#C3D4DA;}
  .crumb .now{color:var(--t-900);font-weight:600;overflow:hidden;text-overflow:ellipsis;}

  /* ---------- 板块通用 ---------- */
  .sec{padding:56px 0;}
  @media (min-width:768px){.sec{padding:72px 0;}}
  @media (min-width:1024px){.sec{padding:96px 0;}}
  .sec-alt{background:var(--bg);}
  .kicker{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-600);
    background:var(--c-100);border-radius:999px;padding:5px 14px;letter-spacing:.02em;
  }
  .sec-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;color:var(--t-900);position:relative;padding-left:16px;}
  .sec-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;background:var(--c-600);}
  .sec-sub{margin-top:14px;font-size:17px;line-height:1.8;color:var(--t-600);max-width:620px;}

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;background:var(--c-50);border-bottom:1px solid var(--line);overflow:hidden;
  }
  .cat-hero::after{
    content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle,rgba(13,110,138,.12),rgba(13,110,138,0) 68%);pointer-events:none;
  }
  .hero-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;padding:44px 0;}
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:7fr 5fr;gap:48px;padding:56px 0;}
  }
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #D8E9EF;
    border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;color:var(--c-600);
  }
  .hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);}
  .cat-hero h1{
    margin-top:16px;font-size:clamp(28px,4.4vw,42px);line-height:1.2;font-weight:800;letter-spacing:-.01em;color:var(--t-900);
  }
  .cat-hero h1 mark{background:linear-gradient(transparent 62%,rgba(199,232,90,.55) 62%);color:var(--t-900);padding:0 2px;}
  .hero-lead{margin-top:16px;font-size:17px;line-height:1.8;color:var(--t-600);max-width:600px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  @media (max-width:519px){.hero-actions .btn{width:100%;}}
  .hero-figure{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-md);background:var(--c-100);}
  .hero-figure img{width:100%;height:220px;object-fit:cover;}
  @media (min-width:768px){.hero-figure img{height:280px;}}
  @media (min-width:1024px){.hero-figure img{height:320px;}}
  .hero-chip{
    position:absolute;left:16px;bottom:16px;background:#fff;border-radius:var(--r-md);
    box-shadow:var(--sh-lg);padding:12px 16px;display:flex;align-items:center;gap:12px;
  }
  .hero-chip b{font-size:26px;font-weight:800;color:var(--c-600);line-height:1;font-variant-numeric:tabular-nums;}
  .hero-chip span{font-size:12px;color:var(--t-400);line-height:1.4;}

  /* ---------- 介绍区 ---------- */
  .intro-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
  @media (min-width:1024px){.intro-grid{grid-template-columns:1fr 1fr;gap:56px;}}
  .intro-media{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-md);}
  .intro-media img{width:100%;height:260px;object-fit:cover;}
  @media (min-width:768px){.intro-media img{height:360px;}}
  .intro-text h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;}
  .intro-text p{margin-top:16px;font-size:16px;line-height:1.9;color:var(--t-600);}
  .intro-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;}
  .intro-stat{background:var(--c-50);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;}
  .intro-stat b{display:block;font-size:30px;font-weight:800;color:var(--c-600);line-height:1.1;font-variant-numeric:tabular-nums;}
  .intro-stat span{display:block;margin-top:6px;font-size:13px;color:var(--t-400);}

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;margin-top:40px;padding-left:34px;}
  .timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--c-100);}
  .tl-item{position:relative;padding-bottom:32px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item::before{
    content:"";position:absolute;left:-34px;top:6px;width:20px;height:20px;border-radius:50%;
    background:#fff;border:3px solid var(--c-600);box-shadow:0 0 0 4px rgba(13,110,138,.08);
  }
  .tl-step{font-size:28px;font-weight:800;color:var(--c-600);line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
  .tl-item h3{margin-top:10px;font-size:20px;line-height:1.45;font-weight:600;color:var(--t-900);}
  .tl-item p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--t-600);max-width:720px;}

  /* ---------- 权益卡网格 ---------- */
  .card-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:40px;}
  @media (min-width:640px){.card-grid{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
  .bene-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh-xs);overflow:hidden;text-align:center;
    transition:transform 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .bene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
  .bene-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
  .bene-body{padding:20px 18px 24px;}
  .bene-body h3{font-size:19px;font-weight:600;color:var(--t-900);}
  .bene-body p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--t-600);}
  .bene-tag{
    display:inline-block;margin-bottom:12px;font-size:12px;font-weight:600;color:var(--c-600);
    background:var(--c-100);border-radius:999px;padding:3px 12px;
  }

  /* ---------- 通栏数据条（浅底） ---------- */
  .stat-band{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);}
  @media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);}}
  .stat-cell{padding:28px 18px;text-align:center;border-right:1px solid rgba(13,110,138,.12);border-bottom:1px solid rgba(13,110,138,.12);}
  @media (min-width:1024px){
    .stat-cell{border-bottom:0;padding:36px 20px;}
    .stat-cell:last-child{border-right:0;}
  }
  .stat-cell:nth-child(2n){border-right:0;}
  @media (min-width:1024px){.stat-cell:nth-child(2n){border-right:1px solid rgba(13,110,138,.12);}}
  .stat-cell b{display:block;font-size:40px;font-weight:800;color:var(--c-600);line-height:1.05;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
  .stat-cell span{display:block;margin-top:10px;font-size:13px;color:var(--t-400);}

  /* ---------- FAQ ---------- */
  .faq-list{margin-top:32px;display:flex;flex-direction:column;gap:10px;}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-xs);overflow:hidden;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;text-align:left;font-size:17px;font-weight:600;color:var(--t-900);line-height:1.5;
  }
  .faq-q:hover{color:var(--c-600);}
  .faq-ico{
    position:relative;flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--c-100);
    transition:transform 200ms var(--ease);
  }
  .faq-ico::before,.faq-ico::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--c-600);border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-ico::before{width:12px;height:2px;}
  .faq-ico::after{width:2px;height:12px;transition:transform 200ms var(--ease);}
  .faq-item.is-open .faq-ico{transform:rotate(180deg);}
  .faq-item.is-open .faq-ico::after{transform:translate(-50%,-50%) scaleY(0);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);}
  .faq-item.is-open .faq-a{max-height:360px;}
  .faq-a-in{margin:0 20px 18px;padding:14px 16px;background:var(--c-50);border-radius:var(--r-md);font-size:15px;line-height:1.8;color:var(--t-600);}

  /* ---------- CTA 通栏 ---------- */
  .cta-band{background:var(--c-600);border-radius:var(--r-xl);padding:32px 24px;color:#fff;display:flex;flex-direction:column;gap:20px;}
  @media (min-width:768px){
    .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;gap:32px;}
  }
  .cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;}
  .cta-band p{margin-top:10px;font-size:15px;line-height:1.75;color:rgba(255,255,255,.85);max-width:620px;}
  .cta-band .btn{background:#fff;color:var(--c-700);box-shadow:0 12px 28px rgba(4,32,42,.22);}
  .cta-band .btn:hover{background:var(--c-50);transform:translateY(-1px);color:var(--c-700);}
  @media (max-width:767px){.cta-band .btn{width:100%;}}

  /* ---------- 页脚 ---------- */
  .site-foot{background:var(--c-900);color:#BCD3DA;padding:56px 0 0;}
  .foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){.foot-grid{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.foot-grid{grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}}
  .foot-brand .logo-text strong{color:#fff;}
  .foot-brand .logo-text em{color:#8FC8D8;}
  .foot-brand .logo-mark{background:#0D6E8A;}
  .foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9FBEC7;max-width:320px;}
  .foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
  .foot-links li{margin-bottom:10px;}
  .foot-links a{font-size:14px;color:#BCD3DA;display:inline-block;transition:all 180ms var(--ease);}
  .foot-links a:hover{color:#fff;transform:translateX(2px);}
  .foot-contact li{font-size:14px;line-height:1.9;color:#9FBEC7;margin-bottom:6px;}
  .foot-contact b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums;}
  .foot-bottom{
    margin-top:44px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
    display:flex;flex-direction:column;gap:8px;font-size:13px;color:#8AA9B3;
  }
  @media (min-width:768px){.foot-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
  }

/* roulang page: category5 */
:root{
  --c-600:#0D6E8A;
  --c-700:#0A5A70;
  --c-900:#073B4C;
  --c-100:#E6F3F7;
  --c-50:#F4F9FB;
  --acc:#FF8A3D;
  --acc-soft:#FFF1E6;
  --lime:#C7E85A;
  --ink:#0F2A33;
  --txt:#4A6270;
  --muted:#8AA0AA;
  --line:#E3ECF0;
  --page:#F5F9FA;
  --alt:#EAF4F7;
  --card:#FFFFFF;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-xl:22px;
  --sh-xs:0 1px 2px rgba(11,42,51,.06);
  --sh-sm:0 4px 12px rgba(11,42,51,.06);
  --sh-md:0 10px 30px rgba(11,42,51,.08);
  --sh-lg:0 20px 48px rgba(11,42,51,.12);
  --sh-brand:0 12px 28px rgba(13,110,138,.22);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--txt);
  background:var(--page);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(13,110,138,.35);outline-offset:2px;border-radius:6px}
.container-x{max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:1279px){.container-x{padding:0 24px}}
@media (max-width:767px){.container-x{padding:0 20px}}

/* ============ 顶栏 ============ */
.top-bar{background:var(--c-900);color:#D6E7EC;font-size:13px}
.top-bar .container-x{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.top-bar b{color:#fff;font-weight:600}
@media (max-width:767px){.top-bar{display:none}}

/* ============ Header ============ */
.site-head{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-head.is-scrolled{box-shadow:var(--sh-sm)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  background:linear-gradient(140deg,var(--c-600),var(--c-900));
  color:#fff;font-weight:800;font-size:15px;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;
}
.logo-text strong{display:block;font-size:20px;line-height:1.12;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.logo-text em{display:block;font-style:normal;font-size:12px;line-height:1.3;font-weight:500;color:var(--c-600)}
.nav-main{align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--c-600);transform:scaleX(0);transform-origin:center;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--c-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-600);background:var(--c-100)}
.nav-link.is-active::after{transform:scaleX(1)}
.head-cta{display:flex;align-items:center;gap:12px}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--c-600);border-radius:2px;position:relative;transition:transform var(--t),background var(--t)}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--c-600);border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.hamburger.is-open span{background:transparent}
.hamburger.is-open span::before{transform:translateY(6px) rotate(45deg)}
.hamburger.is-open span::after{transform:translateY(-6px) rotate(-45deg)}
@media (max-width:1023px){
  .head-inner{height:66px}
  .hamburger{display:flex}
}
@media (max-width:479px){
  .logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;font-size:13px}
  .logo-text strong{font-size:17px}
  .logo-text em{font-size:11px}
}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(7,59,76,.45);opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);z-index:60;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:#fff;
  border-radius:20px 0 0 20px;z-index:61;transform:translateX(102%);
  transition:transform 240ms cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--c-600);font-size:18px;line-height:1;cursor:pointer}
.drawer-nav{padding:8px 0}
.drawer-nav a{
  display:block;padding:0 20px;line-height:52px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);transition:background var(--t),color var(--t);
}
.drawer-nav a:hover{background:var(--c-50);color:var(--c-600)}
.drawer-nav a.is-active{color:var(--c-600);background:var(--c-100);font-weight:600}
.drawer-foot{margin-top:auto;padding:20px}
@media (min-width:1024px){.drawer,.drawer-mask{display:none}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:12px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),background var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--c-600);color:#fff;box-shadow:var(--sh-brand)}
.btn-primary:hover{background:var(--c-700);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--c-600);border-color:var(--c-600)}
.btn-ghost:hover{background:var(--c-100)}
.btn-light{background:#fff;color:var(--c-700)}
.btn-light:hover{background:var(--c-100);transform:translateY(-1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-600);font-size:15px;font-weight:600;
  transition:color var(--t);
}
.btn-text i{font-style:normal;transition:transform var(--t)}
.btn-text:hover i{transform:translateX(4px)}
.btn-block{width:100%}
@media (max-width:767px){.btn-block-mobile{width:100%}}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--muted);padding:14px 0}
.crumbs a{color:var(--c-600);transition:color var(--t)}
.crumbs a:hover{color:var(--c-700)}
.crumbs .sep{color:#B9CBD3}
.crumbs .cur{color:var(--ink);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ Hero（压缩） ============ */
.hero-compact{position:relative;background:var(--c-50);border-bottom:1px solid var(--line);overflow:hidden}
.hero-compact::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(13,110,138,.9) 1px,transparent 1px);
  background-size:20px 20px;opacity:.035;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:repeat(12,1fr);gap:32px;
  align-items:center;min-height:288px;padding:32px 0;
}
.hero-copy{grid-column:span 7}
.hero-figure{grid-column:span 5}
.hero-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:var(--sh-md);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--c-600);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--acc)}
.h1{
  margin-top:16px;
  font-size:clamp(28px,3.9vw,42px);line-height:1.2;font-weight:800;color:var(--ink);
  letter-spacing:-.01em;
}
.h1 .h1-dot{color:var(--acc);margin:0 6px;font-weight:700}
.h1 .h1-brand{color:var(--c-600)}
.hero-lead{margin-top:14px;max-width:640px;font-size:17px;line-height:1.8;color:var(--txt)}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:500;background:#fff;border:1px solid var(--line);color:var(--txt);
}
.chip.is-on{background:var(--c-600);border-color:var(--c-600);color:#fff}
@media (max-width:1023px){
  .hero-copy,.hero-figure{grid-column:span 12}
  .hero-grid{min-height:0;padding:28px 0 32px;gap:24px}
  .hero-figure img{aspect-ratio:16/9;max-height:230px}
}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-alt{background:var(--alt)}
.section-white{background:#fff}
.section-tint{background:var(--c-50);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:767px){.section{padding:56px 0}}
.sec-head{max-width:720px}
.sec-title{
  position:relative;padding-left:14px;font-size:clamp(23px,2.9vw,32px);line-height:1.28;
  font-weight:700;color:var(--ink);letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;background:var(--c-600);
}
.sec-title::after{
  content:"";display:block;width:32px;height:3px;border-radius:3px;background:var(--acc);margin-top:12px;opacity:.85;
}
.sec-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--txt)}

/* ============ FAQ ============ */
.faq-block{margin-top:56px}
.faq-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:start}
.faq-side{grid-column:span 4;position:sticky;top:104px}
.faq-main{grid-column:span 8}
.faq-side-label{font-size:13px;font-weight:700;color:var(--c-600);letter-spacing:.08em}
.faq-side h2{margin-top:10px;font-size:clamp(20px,2.2vw,26px);line-height:1.35;font-weight:700;color:var(--ink)}
.faq-side p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--txt)}
.faq-side .side-note{
  margin-top:20px;padding:16px 18px;border-radius:14px;background:var(--acc-soft);
  font-size:14px;line-height:1.75;color:#8A5327;
}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;
  box-shadow:var(--sh-xs);overflow:hidden;transition:box-shadow var(--t),border-color var(--t);
}
.faq-item:hover{box-shadow:var(--sh-sm);border-color:#D3E3EA}
.faq-h{margin:0;font-size:inherit;font-weight:inherit}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:#fff;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
  transition:background var(--t),color var(--t);
}
.faq-q:hover{background:var(--c-50)}
.faq-icon{
  position:relative;width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  background:var(--c-100);transition:transform var(--t),background var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-600);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:transform var(--t),background var(--t)}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-600)}
.faq-item.is-open .faq-icon::before{background:#fff}
.faq-item.is-open .faq-icon::after{background:#fff;transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{
  padding:14px 20px 20px;background:var(--c-50);border-top:1px solid var(--line);
  font-size:15px;line-height:1.8;color:var(--txt);
}
@media (max-width:1023px){
  .faq-layout{gap:24px;margin-top:0}
  .faq-side,.faq-main{grid-column:span 12;position:static}
  .faq-block{margin-top:40px}
}

/* ============ 服务信息卡 ============ */
.info-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--sh-sm);transition:transform var(--t),box-shadow var(--t);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.info-ico{
  width:46px;height:46px;border-radius:13px;background:var(--c-100);color:var(--c-600);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.info-ico svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.info-card h3{font-size:19px;font-weight:600;color:var(--ink)}
.info-card .val{margin-top:8px;font-size:16px;font-weight:600;color:var(--c-700);font-variant-numeric:tabular-nums}
.info-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted)}
@media (max-width:1023px){.info-cards{grid-template-columns:1fr 1fr;gap:18px}}
@media (max-width:640px){.info-cards{grid-template-columns:1fr}}

/* ============ 联系区 ============ */
.contact-layout{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;margin-top:8px}
.contact-info h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;color:var(--ink);position:relative;padding-left:14px}
.contact-info h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;background:var(--c-600)}
.contact-info > p{margin-top:14px;font-size:16px;line-height:1.8}
.contact-lines{margin-top:24px}
.contact-line{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line)}
.contact-line svg{width:20px;height:20px;flex:0 0 20px;margin-top:4px;stroke:var(--c-600);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.contact-line .lb{font-size:13px;color:var(--muted)}
.contact-line .vv{font-size:15px;font-weight:600;color:var(--ink)}
.contact-photo{margin-top:24px}
.contact-photo img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-sm)}
.contact-photo figcaption{margin-top:10px;font-size:13px;color:var(--muted)}

.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;
  box-shadow:var(--sh-md);
}
.form-card h3{font-size:20px;font-weight:700;color:var(--ink)}
.form-card .form-sub{margin-top:6px;font-size:14px;color:var(--muted)}
.form-tip{
  margin:20px 0 0;padding:12px 16px;border-radius:10px;background:var(--c-100);
  color:var(--c-700);font-size:14px;line-height:1.7;
}
.field{margin-top:20px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px}
.req{color:var(--acc);margin-left:3px}
.field input,.field textarea,.field select{
  width:100%;height:48px;border:1px solid #DCE6EB;border-radius:10px;padding:0 14px;
  font-size:15px;color:var(--ink);background:#fff;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:auto;min-height:126px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A9BCC4}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-600);box-shadow:0 0 0 3px rgba(13,110,138,.18);
}
.form-actions{margin-top:24px;display:flex;justify-content:flex-end}
.form-actions .btn{min-width:160px}
.map-ph{
  margin-top:28px;aspect-ratio:16/6;min-height:150px;border-radius:16px;
  background:var(--c-50);border:1.5px dashed rgba(13,110,138,.22);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:var(--c-600);text-align:center;padding:16px;
}
.map-ph svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.map-ph span{font-size:13px;color:var(--muted)}
@media (max-width:1023px){
  .contact-layout{grid-template-columns:1fr;gap:32px}
}
@media (max-width:767px){
  .form-card{padding:22px}
  .form-actions{justify-content:stretch}
  .form-actions .btn{width:100%}
}

/* ============ CTA 通栏 ============ */
.cta-band{background:var(--c-900);padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(21px,2.5vw,28px);line-height:1.35;font-weight:700;color:#fff}
.cta-band p{margin-top:8px;font-size:15px;line-height:1.75;color:#B9D3DB;max-width:620px}
@media (max-width:640px){.cta-band{padding:40px 0}.cta-inner .btn{width:100%}}

/* ============ 页脚 ============ */
.site-foot{background:var(--c-900);color:#BCD3DA;padding-top:64px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px}
.site-foot .logo-text strong{color:#fff}
.site-foot .logo-text em{color:#9FD3E3}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9FBAC3;max-width:320px}
.foot-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:#BCD3DA;display:inline-block;transition:color var(--t),transform var(--t)}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-contact li{margin-bottom:10px;font-size:14px;color:#9FBAC3}
.foot-contact b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.foot-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FAEB8;
}
@media (max-width:1023px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:640px){.foot-grid{grid-template-columns:1fr}.site-foot{padding-top:48px}}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms ease,transform 520ms ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto!important}
}