/* roulang page: index */
:root{
  --brand:#0F5C4A;
  --brand-deep:#0A3F33;
  --brand-soft:#E4F0EB;
  --accent:#DF8A3C;
  --accent-soft:#FBEBDA;
  --bg:#F7F4EE;
  --bg-alt:#FFFFFF;
  --bg-tint:#F0EDE5;
  --ink:#17211D;
  --ink-2:#5A6660;
  --ink-3:#8B948F;
  --line:#E2DED4;
  --line-strong:#CFC8B8;
  --grad-brand:linear-gradient(135deg,#0F5C4A 0%,#1E8A6D 55%,#2FA98A 100%);
  --grad-accent:linear-gradient(120deg,#DF8A3C 0%,#C96E2A 100%);
  --r-xl:22px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 2px 8px rgba(23,33,29,.05);
  --sh-2:0 10px 28px rgba(23,33,29,.08);
  --sh-3:0 18px 48px rgba(23,33,29,.12);
  --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","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 3px rgba(15,92,74,.18);border-radius:6px;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-narrow{width:100%;max-width:880px;margin:0 auto;padding:0 24px;}
.section{padding:92px 0;}
.section-tint{background:var(--bg-tint);}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--brand-deep);color:#F3F6F4;}

/* ---------- 通用标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-title{position:relative;font-size:32px;line-height:1.3;font-weight:700;padding-left:18px;color:var(--ink);}
.sec-title::before{content:"";position:absolute;left:0;top:6px;width:6px;height:28px;border-radius:3px;background:var(--grad-brand);}
.sec-sub{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:72ch;}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap;}
.sec-link span{transition:transform .25s var(--ease);}
.sec-link:hover span{transform:translateX(4px);}
.sec-link:hover{text-decoration:underline;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;border:0;cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease),filter .25s var(--ease);}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-3);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px);color:var(--brand-deep);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,244,238,.93);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);}
.brand-mark svg{width:19px;height:19px;}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1.2;}
.brand:hover .brand-name{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;font-size:15px;color:var(--ink-2);font-weight:500;border-radius:10px;white-space:nowrap;}
.nav-links a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);}
.nav-links a:hover{color:var(--brand);background:rgba(15,92,74,.05);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer;transition:transform .25s var(--ease),background-color .25s var(--ease);}
.nav-burger svg{width:20px;height:20px;stroke:var(--brand);}
.nav-burger.is-open{transform:rotate(90deg);}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:var(--bg);border-left:1px solid var(--line);box-shadow:var(--sh-3);transform:translateX(102%);transition:transform .3s var(--ease);z-index:120;padding:24px;overflow-y:auto;}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--ink-2);}
.drawer-nav a{display:flex;align-items:center;height:48px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-nav a.active{color:var(--brand);font-weight:600;}
.drawer-actions{margin-top:22px;display:grid;gap:12px;}
.overlay{position:fixed;inset:0;background:rgba(10,63,51,.35);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s;z-index:110;}
.overlay.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 84px;overflow:hidden;}
.hero::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center;min-height:560px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:22px;}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero h1{font-size:50px;line-height:1.22;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.hero h1 em{font-style:normal;color:var(--brand);position:relative;white-space:nowrap;}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;border-radius:4px;background:rgba(47,169,138,.22);z-index:-1;}
.hero-lead{margin-top:22px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:34em;}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:16px;}
.hero-meta{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--ink-3);}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta span+span::before{content:"·";color:var(--line-strong);margin-right:2px;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:16/12;object-fit:cover;border-radius:22px;box-shadow:var(--sh-3);background:var(--bg-tint);}
.hero-float{position:absolute;right:-8px;bottom:-26px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-2);padding:16px 20px;min-width:196px;}
.hero-float strong{display:block;font-size:30px;font-weight:700;color:var(--brand);line-height:1.2;}
.hero-float span{display:block;font-size:13px;color:var(--ink-2);margin-top:4px;}

/* ---------- 服务卡 3+2 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.svc-card.span-2{grid-column:span 2;}
.svc-card.span-3{grid-column:span 3;}
.svc-card.tall{grid-column:span 2;grid-row:span 1;background:var(--brand-soft);border-color:#CFE3DA;}
.svc-icon{width:46px;height:46px;border-radius:14px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;}
.svc-card.tall .svc-icon{background:#fff;}
.svc-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.svc-card h3{font-size:20px;font-weight:600;line-height:1.45;}
.svc-card p{font-size:15px;line-height:1.75;color:var(--ink-2);}
.svc-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);padding-top:6px;}
.svc-more span{transition:transform .25s var(--ease);}
.svc-card:hover .svc-more span{transform:translateX(4px);}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;}

/* ---------- 深色数据区 ---------- */
.stat-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center;}
.stat-lead h2{font-size:32px;line-height:1.3;font-weight:700;color:#F6FAF8;}
.stat-lead p{margin-top:16px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.76);max-width:44ch;}
.stat-note{margin-top:22px;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);}
.stat-note i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.stat-badge{background:transparent;border:1px solid rgba(255,255,255,.28);border-radius:16px;padding:20px;transition:border-color .25s var(--ease),background-color .25s var(--ease);}
.stat-badge:hover{border-color:var(--accent);background:rgba(255,255,255,.06);}
.stat-badge b{display:block;font-size:38px;font-weight:700;line-height:1.15;color:#F6FAF8;}
.stat-badge b small{font-size:14px;font-weight:600;margin-left:3px;}
.stat-badge span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.72);}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;}
.case-left{display:grid;gap:24px;align-content:start;}
.case-row{display:grid;grid-template-columns:180px 1fr;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:18px;box-shadow:var(--sh-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);align-items:center;}
.case-row:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.case-row img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:14px;background:var(--bg-tint);}
.case-row h3{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.45;}
.case-row p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.case-row .tag{margin-top:12px;}
.case-big{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);min-height:100%;display:flex;flex-direction:column;background:#fff;}
.case-big img{width:100%;height:100%;min-height:300px;object-fit:cover;background:var(--bg-tint);}
.case-big-body{padding:22px;}
.case-big-body h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.case-big-body p{font-size:14px;color:var(--ink-2);line-height:1.7;}

/* ---------- 方案卡 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:30px 26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.plan-card.featured{border:2px solid var(--brand);box-shadow:var(--sh-2);transform:translateY(-4px);}
.plan-card.featured:hover{transform:translateY(-8px);}
.plan-flag{position:absolute;top:-13px;left:26px;background:var(--grad-accent);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;box-shadow:var(--sh-1);}
.plan-card h3{font-size:21px;font-weight:600;}
.plan-card .plan-desc{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.plan-price{margin:18px 0 4px;font-size:15px;color:var(--brand);font-weight:600;}
.plan-list{margin-top:18px;display:grid;gap:12px;font-size:14.5px;color:var(--ink-2);}
.plan-list li{display:flex;gap:10px;align-items:flex-start;line-height:1.65;}
.plan-list svg{width:17px;height:17px;flex-shrink:0;margin-top:4px;stroke:var(--brand);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.plan-card .btn{margin-top:26px;width:100%;}

/* ---------- 最新信息 CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-1);overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.news-card:focus-visible{transform:translateY(-4px);}
.news-thumb{aspect-ratio:16/10;background:var(--bg-tint);overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink);}
.news-body p{font-size:15px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.news-date{font-size:13px;color:var(--ink-3);display:inline-flex;align-items:center;gap:6px;}
.news-date svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-xl);padding:52px 24px;text-align:center;}
.empty-state svg{width:48px;height:48px;stroke:var(--line-strong);fill:none;stroke-width:1.5;margin:0 auto 14px;}
.empty-state p{font-size:15px;color:var(--ink-2);}
.empty-state .btn{margin-top:18px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start;}
.faq-side h2{font-size:30px;font-weight:700;line-height:1.3;position:relative;padding-left:18px;}
.faq-side h2::before{content:"";position:absolute;left:0;top:6px;width:6px;height:26px;border-radius:3px;background:var(--grad-brand);}
.faq-side p{margin-top:14px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.faq-list{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;background:none;border:0;cursor:pointer;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:color .25s var(--ease);}
.faq-q:hover{color:var(--brand);}
.faq-q .ic{position:relative;width:18px;height:18px;flex-shrink:0;transition:transform .25s var(--ease);}
.faq-q .ic::before,.faq-q .ic::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
.faq-q .ic::before{left:0;top:8px;width:18px;height:2px;}
.faq-q .ic::after{left:8px;top:0;width:2px;height:18px;transition:opacity .25s var(--ease);}
.faq-item.is-open .faq-q .ic{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.faq-item.is-open .faq-a{max-height:320px;}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:start;}
.contact-info h2{font-size:32px;font-weight:700;line-height:1.3;}
.contact-info > p{margin-top:16px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:44ch;}
.contact-list{margin-top:28px;display:grid;gap:18px;}
.contact-list li{display:flex;gap:14px;align-items:flex-start;}
.contact-list .ci{width:40px;height:40px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.contact-list .ci svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.contact-list b{display:block;font-size:14px;font-weight:600;color:var(--ink);}
.contact-list span{display:block;font-size:14px;color:var(--ink-2);line-height:1.6;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:30px;box-shadow:var(--sh-2);}
.form-card h3{font-size:20px;font-weight:600;margin-bottom:6px;}
.form-card .form-tip{font-size:13.5px;color:var(--ink-2);margin-bottom:20px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px;}
.field label{font-size:13px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;font-size:15px;color:var(--ink);font-family:inherit;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#A8B0AB;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,92,74,.15);}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:12px;line-height:1.7;}
.form-msg{display:none;margin-bottom:16px;padding:10px 14px;border-radius:10px;background:var(--brand-soft);color:var(--brand);font-size:14px;font-weight:600;}
.form-msg.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--brand-deep);color:#EDF3F0;padding-top:4px;}
.site-footer::before{content:"";display:block;height:4px;background:var(--grad-brand);margin-bottom:-4px;}
.footer-top{padding:64px 0 44px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-name{color:#F6FAF8;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:600;color:#F6FAF8;margin-bottom:16px;}
.footer-col a,.footer-col li{display:block;font-size:14px;line-height:2.2;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-col a:hover{color:var(--accent);transform:translateX(-2px);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:44px;}
  .hero-grid{grid-template-columns:7fr 5fr;gap:36px;min-height:auto;}
  .svc-card.span-3{grid-column:span 3;}
}
@media (max-width:991px){
  .nav-links,.nav-actions .btn{display:none;}
  .nav-burger{display:flex;}
  .section{padding:64px 0;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;min-height:440px;}
  .hero h1{font-size:38px;}
  .hero-visual img{aspect-ratio:16/10;}
  .hero-float{right:12px;bottom:-22px;}
  .svc-grid{grid-template-columns:repeat(4,1fr);}
  .svc-card.span-2,.svc-card.span-3{grid-column:span 2;}
  .svc-card.tall{grid-column:span 4;}
  .stat-wrap{grid-template-columns:1fr;gap:36px;}
  .case-grid{grid-template-columns:1fr;}
  .case-big{min-height:auto;}
  .plan-grid{grid-template-columns:repeat(2,1fr);}
  .plan-card.featured{transform:none;}
  .plan-card.featured:hover{transform:translateY(-4px);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding-top:52px;}
}
@media (max-width:767px){
  .container,.container-narrow{padding:0 18px;}
  .section{padding:48px 0;}
  .sec-title,.stat-lead h2,.contact-info h2,.faq-side h2{font-size:24px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .hero h1{font-size:31px;}
  .hero-lead{font-size:16px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{width:100%;}
  .hero-float{position:static;margin-top:16px;box-shadow:var(--sh-1);}
  .svc-grid{grid-template-columns:1fr;}
  .svc-card.span-2,.svc-card.span-3,.svc-card.tall{grid-column:span 1;}
  .svc-card{padding:20px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-badge b{font-size:30px;}
  .case-row{grid-template-columns:1fr;gap:14px;}
  .case-row img{aspect-ratio:16/9;}
  .plan-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a p{padding:0 16px 18px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .hero h1{font-size:28px;}
  body{font-size:15.5px;}
  .brand-name{font-size:16px;}
  .stat-badge b{font-size:28px;}
  .news-body{padding:18px;}
}

/* roulang page: article */
:root{
  --brand:#0F5C4A;
  --brand-deep:#0A3F33;
  --brand-soft:#E4F0EB;
  --accent:#DF8A3C;
  --accent-soft:#FBEBDA;
  --bg:#F7F4EE;
  --bg-alt:#FFFFFF;
  --bg-tint:#F0EDE5;
  --ink:#17211D;
  --ink-2:#5A6660;
  --ink-3:#8B948F;
  --line:#E2DED4;
  --line-strong:#CFC8B8;
  --grad-brand:linear-gradient(135deg,#0F5C4A 0%,#1E8A6D 55%,#2FA98A 100%);
  --grad-accent:linear-gradient(120deg,#DF8A3C 0%,#C96E2A 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --sh-1:0 2px 8px rgba(23,33,29,.05);
  --sh-2:0 10px 28px rgba(23,33,29,.08);
  --sh-3:0 18px 48px rgba(23,33,29,.12);
  --container:1200px;
  --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;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.2em;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 3px rgba(15,92,74,.18);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.container-narrow{width:100%;max-width:880px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn svg{width:18px;height:18px;}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2);}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-weak{background:var(--bg-tint);color:var(--ink-2);box-shadow:none;border-color:var(--line);}
.btn-weak:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-soft);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(247,244,238,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.site-header::before{
  content:"";display:block;height:4px;width:100%;background:var(--grad-brand);
}
.header-inner{
  display:flex;align-items:center;gap:28px;min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px;}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.brand:hover .brand-name{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap;}
.nav-links a{
  position:relative;padding:9px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transform:scaleX(.6);transform-origin:left;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:rgba(228,240,235,.6);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{opacity:1;transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);align-items:center;justify-content:center;cursor:pointer;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.nav-toggle:hover{background:var(--brand-soft);}
.nav-toggle.is-open{transform:rotate(90deg);}
.nav-toggle svg{width:20px;height:20px;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:120;
  background:#fff;box-shadow:var(--sh-3);padding:24px;
  display:none;flex-direction:column;gap:8px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s var(--ease);
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-title{font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.08em;margin:8px 0 4px;}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  font-size:16px;color:var(--ink);border:1px solid transparent;
}
.mobile-drawer a.drawer-link:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand);}
.mobile-drawer a.drawer-link.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.mobile-drawer .btn{margin-top:14px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,33,29,.42);z-index:110;display:none;
}
.drawer-mask.is-open{display:block;}

/* ---------- 文章头图区 ---------- */
.article-hero{
  position:relative;
  min-height:190px;
  display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,92,74,.88) 0%,rgba(15,92,74,.55) 55%,rgba(15,92,74,.20) 100%);
}
.article-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:34px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.82);}
.crumbs a{color:rgba(255,255,255,.92);}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.crumbs span.sep{color:rgba(255,255,255,.5);}
.crumbs .crumb-current{
  color:#fff;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.3);
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ---------- 文章头部 ---------- */
.article-head{padding:52px 0 0;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-xs);
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{
  font-size:40px;line-height:1.28;font-weight:700;letter-spacing:.01em;
  margin-top:18px;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.article-meta time{font-variant-numeric:tabular-nums;}
.article-cover{
  margin:32px 0 0;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--bg-tint);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}

/* ---------- 正文排版 ---------- */
.article-body{padding:44px 0 24px;}
.prose{font-size:16px;line-height:1.9;color:var(--ink);}
.prose p{margin:0 0 18px;max-width:72ch;}
.prose h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:6px;width:6px;height:26px;border-radius:3px;
  background:var(--grad-brand);
}
.prose h3{font-size:19px;line-height:1.5;font-weight:600;margin:30px 0 12px;color:var(--ink);}
.prose h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--ink);}
.prose ul,.prose ol{margin:0 0 18px;padding-left:1.3em;line-height:1.9;}
.prose li{margin:6px 0;}
.prose ul li::marker{color:var(--brand);}
.prose ol li::marker{color:var(--brand);font-weight:600;}
.prose blockquote{
  margin:24px 0;padding:18px 22px;border-radius:var(--r-sm);
  background:var(--brand-soft);border-left:4px solid var(--brand);
  color:#0d4b3d;font-size:15px;line-height:1.85;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.prose thead{background:var(--bg-tint);}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.prose tbody tr:nth-child(even){background:#FBFAF6;}
.prose th{font-weight:600;color:var(--ink);}
.prose img{border-radius:18px;margin:18px 0 8px;aspect-ratio:16/10;object-fit:cover;background:var(--bg-tint);}
.prose figure{margin:22px 0;}
.prose figcaption{font-size:13px;color:var(--ink-3);line-height:1.6;text-align:center;}
.prose a{color:var(--brand);font-weight:500;text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--brand-deep);}
.prose hr{border:none;border-top:1px solid var(--line);margin:32px 0;}
.prose strong{font-weight:700;color:var(--ink);}
.prose code{
  background:var(--bg-tint);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:14px;color:var(--brand-deep);
}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.empty-state svg{width:48px;height:48px;color:var(--line-strong);margin:0 auto 14px;}
.empty-state p{font-size:16px;color:var(--ink-2);margin-bottom:20px;}

/* ---------- 文末操作 ---------- */
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
}
.share{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);}
.share-btn{
  height:38px;padding:0 16px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);font-size:13px;font-weight:500;cursor:pointer;
  transition:all .25s var(--ease);
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.share-btn:active{transform:translateY(1px);}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:30px;flex-wrap:wrap;
}
.section-head h2{
  position:relative;font-size:30px;line-height:1.3;font-weight:700;padding-left:18px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:6px;height:28px;border-radius:3px;
  background:var(--grad-brand);
}
.section-head p{font-size:15px;color:var(--ink-2);margin-top:8px;padding-left:18px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);}
.link-arrow svg{width:16px;height:16px;transition:transform .25s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.rel-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-tint);}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rel-card:hover .thumb img{transform:scale(1.04);}
.rel-card .rel-inner{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card h4{
  font-size:17px;line-height:1.5;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover h4{color:var(--brand);}
.rel-card .rel-desc{
  font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;}
.badge-cat{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-xs);
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.rel-time{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--ink-3);}
.rel-time svg{width:13px;height:13px;}

/* ---------- 咨询 CTA ---------- */
.cta-band{
  margin:76px 0 0;padding:56px 0;
  background:var(--brand-deep);color:#F7F4EE;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);
}
.cta-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;}
.cta-inner h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff;}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(247,244,238,.78);max-width:56ch;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:14px;color:rgba(247,244,238,.85);}
.cta-points span{display:inline-flex;align-items:center;gap:8px;}
.cta-points i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn{width:100%;}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.cta-note{font-size:13px;color:rgba(247,244,238,.6);text-align:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;background:var(--brand-deep);color:#F7F4EE;position:relative;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand .brand-name{color:#F7F4EE;}
.site-footer .brand-mark{background:var(--brand-soft);}
.site-footer .brand-mark svg{stroke:var(--brand-deep);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(247,244,238,.68);max-width:36ch;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col a,.footer-col li{
  display:block;font-size:14px;line-height:2.2;color:rgba(247,244,238,.72);
  transition:color .25s var(--ease),transform .25s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(247,244,238,.56);
}
.footer-bottom a{color:rgba(247,244,238,.72);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:2px;}
  .nav-links a{padding:9px 9px;font-size:14px;}
  .header-inner{gap:18px;}
}
@media (max-width:991px){
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .article-head h1{font-size:32px;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
}
@media (max-width:767px){
  .container,.container-narrow{padding:0 18px;}
  .article-hero{min-height:160px;}
  .article-head{padding:38px 0 0;}
  .article-head h1{font-size:28px;}
  .article-body{padding:32px 0 16px;}
  .prose h2{font-size:21px;margin-top:32px;}
  .prose h3{font-size:18px;}
  .prose table{display:block;overflow-x:auto;white-space:nowrap;}
  .related{padding:52px 0 0;}
  .section-head h2{font-size:24px;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-band{margin-top:56px;padding:44px 0;}
  .cta-inner h2{font-size:24px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .article-head h1{font-size:26px;}
  .prose{font-size:15.5px;}
  .btn{width:100%;}
  .btn.btn-sm{width:auto;}
  .footer-top{grid-template-columns:1fr;}
  .share{width:100%;}
  .share-btn{flex:1;}
  .article-hero .crumbs .crumb-current{max-width:150px;}
}

/* roulang page: category1 */
:root{
  --brand:#0F5C4A;
  --brand-deep:#0A3F33;
  --brand-soft:#E4F0EB;
  --accent:#DF8A3C;
  --accent-soft:#FBEBDA;
  --bg:#F7F4EE;
  --bg-alt:#FFFFFF;
  --bg-tint:#F0EDE5;
  --ink:#17211D;
  --ink-2:#5A6660;
  --ink-3:#8B948F;
  --line:#E2DED4;
  --line-strong:#CFC8B8;
  --grad-brand:linear-gradient(135deg,#0F5C4A 0%,#1E8A6D 60%,#2FA98A 100%);
  --grad-accent:linear-gradient(120deg,#DF8A3C 0%,#C96E2A 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(23,33,29,.05);
  --sh-2:0 10px 28px rgba(23,33,29,.08);
  --sh-3:0 18px 48px rgba(23,33,29,.12);
  --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","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 3px rgba(15,92,74,.18)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:880px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(247,244,238,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad-brand);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;stroke:#fff}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap;color:var(--ink)}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:20px;flex:1}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:999px;
  font-size:15px;color:var(--ink-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:3px;
  border-radius:3px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);
  border-radius:12px;background:var(--bg-alt);cursor:pointer;
  align-items:center;justify-content:center;margin-left:auto;position:relative;z-index:220;
  transition:transform .25s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{background:var(--brand-soft)}
.nav-toggle.open{transform:rotate(90deg)}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;border-radius:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-brand:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-brand:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:var(--bg-alt);border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-more{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);
  font-size:14px;font-weight:600;
}
.link-more svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease)}
.link-more:hover svg{transform:translateX(4px)}
.link-more:hover{text-decoration:underline}

/* ---------- 页面头 ---------- */
.page-head{
  position:relative;padding:60px 0 56px;color:#F5F3EC;
  background-image:linear-gradient(100deg,rgba(10,63,51,.94) 0%,rgba(15,92,74,.86) 52%,rgba(15,92,74,.58) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(245,243,236,.78)}
.breadcrumb a{color:rgba(245,243,236,.9);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.6}
.breadcrumb [aria-current]{color:#fff;font-weight:600}
.page-head h1{
  margin-top:18px;font-size:clamp(32px,4.2vw,48px);line-height:1.24;font-weight:700;letter-spacing:.01em;
}
.page-head .sub{margin-top:16px;max-width:62ch;font-size:16px;line-height:1.85;color:rgba(245,243,236,.86)}
.page-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;color:#F5F3EC;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.page-head .btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.page-head .btn-outline:hover{background:rgba(255,255,255,.14)}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-tint{background:var(--bg-tint)}
.section-head{max-width:720px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.section-head h2{
  margin-top:16px;font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:.01em;
  position:relative;padding-left:18px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:6px;height:1.05em;border-radius:4px;background:var(--grad-brand);
}
.lead{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:72ch}

/* ---------- 双栏：目录 + 卡片 ---------- */
.guide-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;align-items:start}
.side-nav{
  position:sticky;top:96px;background:var(--bg-alt);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px 20px;box-shadow:var(--sh-1);
}
.side-nav h2{font-size:12px;letter-spacing:.14em;color:var(--ink-3);font-weight:700;margin-bottom:14px}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:block;padding:9px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.side-list a:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px)}
.side-contact{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line-strong)}
.side-contact p{font-size:13px;color:var(--ink-3);line-height:1.7}
.side-contact strong{display:block;font-size:15px;color:var(--ink);margin-bottom:4px}
.side-contact .btn{margin-top:14px;height:42px;font-size:14px;padding:0 18px}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.guide-card{
  display:flex;flex-direction:column;gap:14px;padding:26px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.card-icon{
  width:46px;height:46px;border-radius:14px;background:var(--brand-soft);
  display:grid;place-items:center;color:var(--brand);
}
.card-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.guide-card h3{font-size:19px;line-height:1.45;font-weight:600}
.guide-card p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.tag-accent{background:var(--accent-soft);color:#A85A20}
.card-link{margin-top:auto;padding-top:6px}

/* ---------- 登录前准备 ---------- */
.prep{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.prep-media{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2)}
.prep-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.prep-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:#F5F3EC;
  background:linear-gradient(180deg,rgba(10,63,51,0) 0%,rgba(10,63,51,.78) 100%);
}
.check-list{display:flex;flex-direction:column;gap:16px;margin-top:24px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.8;color:var(--ink-2)}
.check-mark{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin-top:3px;
}
.check-mark svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.check-list strong{color:var(--ink);font-weight:600}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px}
.step{
  position:relative;padding:24px 22px;background:var(--bg-alt);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.step-num{
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--accent);
}
.step h3{font-size:17px;font-weight:600;margin-top:10px}
.step p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}

/* ---------- 数据区 ---------- */
.stats-band{background:var(--brand-deep);color:#F3F1EA;padding:76px 0}
.stats-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center}
.stats-copy h2{font-size:clamp(22px,2.6vw,28px);line-height:1.4;font-weight:700;color:#fff}
.stats-copy p{margin-top:16px;font-size:15px;line-height:1.85;color:rgba(243,241,234,.76);max-width:46ch}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.stat{
  padding:20px;border-radius:16px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.03);
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.stat:hover{border-color:var(--accent);background:rgba(255,255,255,.06)}
.stat-num{font-size:36px;line-height:1.15;font-weight:700;font-variant-numeric:tabular-nums;color:#fff}
.stat-num span{font-size:14px;font-weight:600;margin-left:4px;color:rgba(243,241,234,.8)}
.stat-label{margin-top:8px;font-size:13px;color:rgba(243,241,234,.72)}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px}
.faq-item{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.open{border-color:var(--line-strong);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);display:grid;place-items:center;
  color:var(--brand);transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-icon svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-soft);border-color:var(--brand-soft)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- 联系表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:18px;margin-top:26px}
.info-row{display:flex;gap:14px;align-items:flex-start}
.info-icon{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;
}
.info-icon svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.info-row .label{font-size:13px;color:var(--ink-3);line-height:1.6}
.info-row .value{font-size:15px;color:var(--ink);font-weight:600;line-height:1.7;word-break:break-all}
.form-card{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;font-weight:600}
.form-card .hint{margin-top:8px;font-size:13.5px;color:var(--ink-3);line-height:1.7}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:12px;
  font-family:inherit;font-size:15px;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input,.field select{height:48px;padding:0 14px}
.field textarea{min-height:120px;padding:12px 14px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:#A9B1AC}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,92,74,.16);
}
.form-actions{margin-top:22px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.form-note{font-size:13px;color:var(--ink-3)}
.form-success{
  display:none;margin-top:18px;padding:12px 16px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);font-size:14px;font-weight:600;
  border:1px solid rgba(15,92,74,.18);
}
.form-success.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--brand-deep);color:#EFEDE6;padding:0 0 28px}
.site-footer::before{content:"";display:block;height:4px;background:var(--grad-brand);margin-bottom:56px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-name{color:#F7F4EE}
.footer-brand .brand-mark{background:var(--brand-soft)}
.footer-brand .brand-mark svg{stroke:var(--brand-deep)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(239,237,230,.72);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col a,.footer-col li{
  display:block;font-size:14px;line-height:2.2;color:rgba(239,237,230,.74);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-col ul{display:flex;flex-direction:column}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(239,237,230,.62);
}
.footer-bottom a{color:rgba(239,237,230,.82)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .header-inner{gap:16px}
  .nav-links a{padding:8px 10px;font-size:14.5px}
}
@media (max-width:992px){
  .nav-toggle{display:inline-flex}
  .nav-shell{
    position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;
    background:var(--bg-alt);flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:10px;padding:84px 22px 28px;box-shadow:var(--sh-3);
    transform:translateX(105%);transition:transform .3s var(--ease);
    overflow-y:auto;z-index:210;
  }
  .nav-shell.open{transform:translateX(0)}
  .nav-links{flex-direction:column;align-items:stretch;gap:2px;flex-wrap:nowrap}
  .nav-links a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;font-size:16px}
  .nav-links a.active{background:var(--brand-soft)}
  .nav-links a.active::after{display:none}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:14px}
  .nav-actions .btn{width:100%}
  .guide-layout{grid-template-columns:1fr;gap:28px}
  .side-nav{position:static;padding:18px 16px}
  .side-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .side-list a{white-space:nowrap;background:var(--bg-tint);font-size:14px;padding:8px 14px;border-radius:999px}
  .side-contact{display:none}
  .prep{grid-template-columns:1fr;gap:28px}
  .stats-layout{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .stats-band{padding:60px 0}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .page-head{padding:48px 0 44px}
  .page-head .sub{font-size:15px}
  .card-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:52px 0}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:520px){
  .header-inner{min-height:60px}
  .brand-name{font-size:16px}
  .page-head h1{font-size:28px}
  .section-head h2{font-size:22px;padding-left:14px}
  .guide-card{padding:20px}
  .steps{grid-template-columns:1fr}
  .stat-num{font-size:30px}
  .form-card{padding:20px}
  .form-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .page-head-actions .btn{width:100%}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
  --brand:#0F5C4A; --brand-deep:#0A3F33; --brand-soft:#E4F0EB;
  --accent:#DF8A3C; --accent-soft:#FBEBDA;
  --bg:#F7F4EE; --bg-alt:#FFFFFF; --bg-tint:#F0EDE5;
  --ink:#17211D; --ink-2:#5A6660; --ink-3:#8B948F;
  --line:#E2DED4; --line-strong:#CFC8B8;
  --grad-brand:linear-gradient(135deg,#0F5C4A 0%,#1E8A6D 55%,#2FA98A 100%);
  --grad-accent:linear-gradient(120deg,#DF8A3C 0%,#C96E2A 100%);
  --sh-1:0 2px 8px rgba(23,33,29,.05);
  --sh-2:0 10px 28px rgba(23,33,29,.08);
  --sh-3:0 18px 48px rgba(23,33,29,.12);
  --r-lg:22px; --r-md:16px; --r-sm:12px; --r-badge:10px;
  --sec:92px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.002em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--ink);}
p{margin:0 0 18px;max-width:72ch;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 5px rgba(15,92,74,.18);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.narrow{max-width:880px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.site-header::before{
  content:"";display:block;height:4px;background:var(--grad-brand);
}
.header-inner{
  display:flex;align-items:center;gap:24px;min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:var(--sh-1);
}
.brand-mark svg{width:20px;height:20px;}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.brand:hover .brand-name{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap;}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{color:var(--brand);font-weight:700;background:var(--brand-soft);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:20px;height:3px;border-radius:3px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);cursor:pointer;align-items:center;justify-content:center;
  transition:transform .25s ease,background .2s ease;
}
.nav-toggle:hover{background:var(--brand-soft);}
.nav-toggle.is-open{transform:rotate(90deg);}
.nav-toggle svg{width:22px;height:22px;}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;z-index:120;
  width:84vw;max-width:360px;height:100vh;
  background:var(--bg);border-left:1px solid var(--line);
  box-shadow:var(--sh-3);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  padding:24px 22px 32px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--brand);}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--ink-2);font-size:20px;line-height:1;cursor:pointer;
}
.drawer a.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  font-size:16px;color:var(--ink);border:1px solid transparent;
}
.drawer a.drawer-link:hover{background:var(--brand-soft);color:var(--brand);}
.drawer a.drawer-link.active{background:var(--brand-soft);color:var(--brand);font-weight:700;border-color:var(--line);}
.drawer .btn{margin-top:14px;width:100%;justify-content:center;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,63,51,.38);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
}
.link-arrow .arw{transition:transform .25s ease;}
.link-arrow:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:4px;}
.link-arrow:hover .arw{transform:translateX(4px);}

/* ---------- 分类页头图 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--brand-deep);
  padding:74px 0 78px;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-position:center;background-size:cover;background-repeat:no-repeat;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(95deg,rgba(15,92,74,.88) 0%,rgba(15,92,74,.68) 48%,rgba(10,63,51,.42) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.crumbs .sep{opacity:.55;}
.hero-pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 16px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  color:#F3F7F5;font-size:13px;font-weight:600;letter-spacing:.04em;
  margin-bottom:20px;
}
.hero-pill .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.page-hero h1{
  color:#fff;font-size:46px;line-height:1.22;max-width:14em;
  text-shadow:0 2px 18px rgba(0,0,0,.16);
}
.page-hero h1 .hl{
  position:relative;display:inline-block;
}
.page-hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:9px;
  background:rgba(223,138,60,.55);border-radius:4px;z-index:-1;
}
.hero-sub{
  margin-top:18px;max-width:640px;color:rgba(255,255,255,.9);font-size:16.5px;line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
  font-size:13px;color:rgba(255,255,255,.76);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;}
.section-alt{background:var(--bg-alt);}
.section-tint{background:var(--bg-tint);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);
  margin-bottom:12px;
}
.sec-eyebrow::before{content:"";width:6px;height:24px;border-radius:4px;background:var(--grad-brand);}
.sec-head h2{font-size:32px;line-height:1.3;}
.sec-desc{margin-top:14px;font-size:15.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- 交错图文行 ---------- */
.split-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
}
.split-row + .split-row{border-top:1px solid var(--line);}
.split-row.reverse .split-media{order:2;}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:18px;
  border:1px solid var(--line);box-shadow:var(--sh-2);background:var(--bg-tint);
}
.split-media .media-tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-badge);
  background:rgba(255,255,255,.94);color:var(--brand);
  font-size:12.5px;font-weight:700;box-shadow:var(--sh-1);
}
.split-body h3{font-size:23px;line-height:1.45;margin-bottom:14px;}
.split-body p{font-size:15.5px;color:var(--ink-2);line-height:1.85;margin-bottom:14px;}
.point-list{margin:18px 0 20px;display:grid;gap:10px;}
.point-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink);line-height:1.7;
}
.point-list .tick{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;margin-top:3px;
}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{
  display:inline-block;padding:4px 12px;border-radius:var(--r-badge);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12.5px;font-weight:600;
}
.chip.warm{background:var(--accent-soft);color:#A9541C;}

/* ---------- 安装步骤 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  counter-reset:step;
}
.step-card{
  position:relative;background:var(--bg-alt);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;
}
.step-card h4{font-size:17px;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin:0;}

/* ---------- 信息条 ---------- */
.notice-bar{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--accent-soft);border:1px solid #F0D4B4;border-radius:var(--r-md);
  padding:18px 22px;margin-top:36px;
}
.notice-bar .nb-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:#fff;color:#A9541C;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;
}
.notice-bar p{margin:0;font-size:14.5px;color:#7A421A;line-height:1.8;max-width:none;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start;}
.faq-aside h2{font-size:30px;line-height:1.3;margin-bottom:14px;}
.faq-aside p{font-size:15px;color:var(--ink-2);}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;flex-shrink:0;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);transition:transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{
  padding:0 22px 20px;margin:0;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:none;
}
.faq-item.open .faq-a{max-height:420px;}

/* ---------- 窄横幅 CTA ---------- */
.cta-band{
  background:var(--brand-deep);position:relative;overflow:hidden;
  border-radius:0;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:52px 0;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:27px;line-height:1.4;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:56ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);color:#EDF3F0;position:relative;
  padding:0 0 30px;margin-top:0;
}
.site-footer::before{
  content:"";display:block;height:4px;background:var(--grad-brand);
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;
  padding:64px 0 44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-mark{background:var(--brand-soft);box-shadow:none;}
.footer-brand .brand-mark svg{stroke:var(--brand-deep);}
.footer-brand p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.85;max-width:34ch;margin:0;}
.footer-col h4{
  color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.04em;
}
.footer-col a,.footer-col li{
  display:block;color:rgba(255,255,255,.74);font-size:14px;line-height:2.2;
  transition:color .2s ease,transform .2s ease;
}
.footer-col ul{margin:0;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.74);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 22px;}
  .page-hero h1{font-size:42px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  :root{--sec:64px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-ghost{display:none;}
  .page-hero{padding:56px 0 60px;}
  .page-hero h1{font-size:34px;}
  .split-row{grid-template-columns:1fr;gap:26px;padding:36px 0;}
  .split-row.reverse .split-media{order:0;}
  .faq-wrap{grid-template-columns:1fr;gap:26px;}
  .cta-inner{padding:44px 0;flex-direction:column;align-items:flex-start;gap:22px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .sec-head h2{font-size:24px;}
  .steps{grid-template-columns:1fr;}
  .split-body h3{font-size:20px;}
  .faq-aside h2{font-size:24px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:519px){
  .page-hero h1{font-size:27px;}
  body{font-size:15.5px;}
  .brand-name{font-size:16px;}
  .hero-meta{flex-direction:column;gap:8px;}
  .split-media img{aspect-ratio:4/3;}
  .footer-top{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category3 */
:root{
  --brand:#0F5C4A;
  --brand-deep:#0A3F33;
  --brand-soft:#E4F0EB;
  --accent:#DF8A3C;
  --accent-soft:#FBEBDA;
  --bg:#F7F4EE;
  --bg-alt:#FFFFFF;
  --bg-tint:#F0EDE5;
  --ink:#17211D;
  --ink-2:#5A6660;
  --ink-3:#8B948F;
  --line:#E2DED4;
  --line-strong:#CFC8B8;
  --grad-brand:linear-gradient(135deg,#0F5C4A 0%,#1E8A6D 55%,#2FA98A 100%);
  --grad-accent:linear-gradient(120deg,#DF8A3C 0%,#C96E2A 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(23,33,29,.05);
  --sh-2:0 10px 28px rgba(23,33,29,.08);
  --sh-3:0 18px 48px rgba(23,33,29,.12);
  --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","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:18px;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700;}
p{margin:0 0 18px;max-width:72ch;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(15,92,74,.18);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.narrow{max-width:880px;margin:0 auto;}
.section{padding:88px 0;}
.section-alt{background:var(--bg-alt);}
.section-tint{background:var(--bg-tint);}

/* ---------- 通用组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.sec-title{position:relative;padding-left:18px;font-size:32px;line-height:1.3;}
.sec-title::before{content:"";position:absolute;left:0;top:6px;width:6px;height:28px;border-radius:3px;background:var(--grad-brand);}
.sec-sub{color:var(--ink-2);font-size:15px;max-width:640px;margin:10px 0 0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:0;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline{background:#fff;color:var(--brand);border:1.5px solid var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--line-strong);}
.btn-ghost:hover{background:#fff;border-color:var(--brand);color:var(--brand-deep);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:24px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.tag{
  display:inline-block;padding:4px 10px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;line-height:1.6;
}
.tag-accent{background:var(--accent-soft);color:#A55A1C;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px;}
.brand-name{font-size:18px;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transform:scaleX(.4);
  transition:opacity .2s var(--ease),transform .25s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:rgba(228,240,235,.6);}
.nav-links a.active{color:var(--brand);font-weight:700;background:var(--brand-soft);}
.nav-links a.active::after{opacity:1;transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;margin-left:auto;
  transition:transform .25s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle[aria-expanded="true"]{transform:rotate(90deg);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:80;
  width:84vw;max-width:360px;height:100%;
  background:#fff;border-left:1px solid var(--line);
  box-shadow:var(--sh-3);
  padding:88px 22px 32px;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer a.m-link{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;
  font-size:16px;font-weight:500;color:var(--ink);
}
.mobile-drawer a.m-link:hover,.mobile-drawer a.m-link.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;}
.mobile-drawer .m-cta{margin-top:18px;display:grid;gap:10px;}
.drawer-close{
  position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-strong);background:#fff;cursor:pointer;font-size:18px;color:var(--ink-2);
}
.scrim{
  position:fixed;inset:0;background:rgba(10,63,51,.36);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.scrim.is-open{opacity:1;pointer-events:auto;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:64px 0 72px;
  color:#fff;
  background-image:linear-gradient(90deg,rgba(10,63,51,.9) 0%,rgba(15,92,74,.62) 52%,rgba(15,92,74,.28) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-brand);}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:20px;flex-wrap:wrap;}
.crumbs a{color:rgba(255,255,255,.9);}
.crumbs a:hover{color:var(--accent);}
.crumbs span{opacity:.7;}
.page-title{
  color:#fff;font-size:44px;line-height:1.22;letter-spacing:.01em;max-width:900px;
}
.page-title em{font-style:normal;color:#FFD9B4;}
.page-lead{
  margin-top:16px;max-width:640px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
  font-size:13px;color:rgba(255,255,255,.78);
}
.hero-meta i{font-style:normal;color:var(--accent);margin-right:6px;}

/* ---------- 方案卡 ---------- */
.plan-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;
}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:28px 24px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.plan-card.featured{
  border:2px solid var(--brand);
  box-shadow:var(--sh-2);
  transform:translateY(-4px);
}
.plan-card.featured:hover{transform:translateY(-8px);box-shadow:var(--sh-3);}
.plan-flag{
  position:absolute;top:-14px;left:24px;
  padding:4px 14px;border-radius:var(--r-pill);
  background:var(--grad-accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;
  box-shadow:var(--sh-1);
}
.plan-name{font-size:22px;line-height:1.4;margin-bottom:8px;}
.plan-desc{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:18px;}
.plan-scale{
  display:flex;align-items:baseline;gap:8px;padding:14px 0 18px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:18px;
}
.plan-scale b{font-size:26px;font-weight:700;color:var(--brand);letter-spacing:.01em;}
.plan-scale span{font-size:13px;color:var(--ink-3);}
.plan-list{display:grid;gap:10px;margin-bottom:24px;}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.plan-list li .tick{
  flex:0 0 20px;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;margin-top:3px;
}
.plan-card .btn{margin-top:auto;}

/* ---------- 对比表 ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.compare-table{
  width:100%;min-width:760px;border-collapse:collapse;font-size:14.5px;
}
table.compare-table caption{
  text-align:left;padding:20px 24px 4px;font-size:13px;color:var(--ink-3);
}
table.compare-table th,table.compare-table td{
  padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle;
}
table.compare-table thead th{
  background:var(--bg-tint);color:var(--brand-deep);font-size:15px;font-weight:700;white-space:nowrap;
}
table.compare-table thead th.col-featured{background:var(--brand-soft);color:var(--brand-deep);}
table.compare-table tbody tr:nth-child(even){background:#FCFAF6;}
table.compare-table tbody tr:hover{background:var(--brand-soft);}
table.compare-table tbody th{
  font-weight:600;color:var(--ink);background:#fff;white-space:nowrap;
}
table.compare-table tbody tr:nth-child(even) th{background:#FCFAF6;}
table.compare-table td{color:var(--ink-2);}
table.compare-table td.col-featured{color:var(--brand-deep);font-weight:600;background:rgba(228,240,235,.45);}
.yes,.no{display:inline-flex;align-items:center;gap:6px;}
.yes::before{content:"✓";color:var(--brand);font-weight:700;}
.no::before{content:"—";color:var(--ink-3);font-weight:700;}
.table-note{padding:14px 24px 20px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);}

/* ---------- 清单板块 ---------- */
.check-split{display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:center;}
.check-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.check-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);}
.check-figure .float-card{
  position:absolute;right:16px;bottom:16px;
  background:rgba(255,255,255,.96);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh-2);border:1px solid var(--line);
}
.check-figure .float-card b{display:block;font-size:24px;color:var(--brand);line-height:1.2;}
.check-figure .float-card span{font-size:12px;color:var(--ink-3);}
.check-list{display:grid;gap:16px;margin-top:26px;}
.check-item{
  display:flex;gap:16px;padding:18px 20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.check-item .ico{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
}
.check-item .ico svg{width:20px;height:20px;}
.check-item h3{font-size:17px;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:none;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-q .pm{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform .25s var(--ease);}
.faq-q .pm::before,.faq-q .pm::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .pm::before{width:14px;height:2px;}
.faq-q .pm::after{width:2px;height:14px;transition:opacity .25s var(--ease);}
.faq-item.is-open .faq-q .pm{transform:rotate(45deg);}
.faq-item.is-open .faq-q .pm::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease);
}
.faq-a p{padding:0 20px 20px;margin:0;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:none;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--brand-deep);color:#fff;border-radius:var(--r-lg);
  padding:48px 44px;box-shadow:var(--sh-3);
  display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;
}
.cta-panel::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-brand);}
.cta-panel h2{color:#fff;font-size:30px;line-height:1.32;}
.cta-panel p{color:rgba(255,255,255,.78);margin:14px 0 0;font-size:15px;max-width:52ch;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff;}
.cta-contact{display:flex;gap:22px;margin-top:26px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.72);}
.cta-contact span{display:inline-flex;align-items:center;gap:8px;}
.cta-contact i{font-style:normal;color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--brand-deep);color:rgba(255,255,255,.82);
  padding-top:64px;margin-top:0;
}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-brand);}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand-soft);}
.footer-brand .brand-mark svg{stroke:var(--brand);}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);margin:0;max-width:34ch;}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:14px;letter-spacing:.03em;}
.footer-col a,.footer-col li{
  display:block;font-size:14px;line-height:2.2;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col ul{margin:0;padding:0;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.78);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links a{padding:8px 9px;font-size:14px;}
  .page-title{font-size:40px;}
}
@media (max-width:1080px){
  .header-actions .btn-outline{display:none;}
}
@media (max-width:991px){
  .nav-links,.header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;}
  .section{padding:64px 0;}
  .page-hero{padding:52px 0 56px;}
  .page-title{font-size:34px;}
  .plan-grid{grid-template-columns:1fr;gap:20px;}
  .plan-card.featured{transform:none;}
  .plan-card.featured:hover{transform:translateY(-4px);}
  .check-split{grid-template-columns:1fr;gap:28px;}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px;}
  .cta-panel h2{font-size:26px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .sec-title{font-size:27px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .page-title{font-size:30px;}
  .page-lead{font-size:15px;}
  .sec-title{font-size:24px;}
  .card{padding:18px;}
  .plan-card{padding:22px 18px;}
  .cta-panel{padding:30px 20px;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{width:100%;}
  .header-inner .btn{width:auto;}
  .faq-q{font-size:15px;padding:12px 16px;}
  .faq-a p{padding:0 16px 18px;}
}
@media (max-width:479px){
  body{font-size:15.5px;}
  .page-title{font-size:28px;}
  .sec-title{font-size:22px;}
  .hero-meta{font-size:12px;gap:8px 16px;}
  table.compare-table{min-width:680px;}
}

/* roulang page: category4 */
:root{
  --brand:#0F5C4A;
  --brand-deep:#0A3F33;
  --brand-soft:#E4F0EB;
  --accent:#DF8A3C;
  --accent-soft:#FBEBDA;
  --bg:#F7F4EE;
  --bg-alt:#FFFFFF;
  --bg-tint:#F0EDE5;
  --ink:#17211D;
  --ink-2:#5A6660;
  --ink-3:#8B948F;
  --line:#E2DED4;
  --line-strong:#CFC8B8;
  --grad-brand:linear-gradient(135deg,#0F5C4A,#1E8A6D,#2FA98A);
  --grad-accent:linear-gradient(120deg,#DF8A3C,#C96E2A);
  --sh-1:0 2px 8px rgba(23,33,29,.05);
  --sh-2:0 10px 28px rgba(23,33,29,.08);
  --sh-3:0 18px 48px rgba(23,33,29,.12);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --container:1200px;
}
*,*::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","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 3px rgba(15,92,74,.18);border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-tint{background:var(--bg-tint)}
.section-head{margin-bottom:32px;max-width:760px}
.section-title{font-size:32px;font-weight:700;position:relative;padding-left:18px}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:6px;background:var(--grad-brand)}
.section-sub{margin-top:12px;color:var(--ink-2);font-size:15px;line-height:1.8}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,244,238,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  display:grid;place-items:center;flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px}
.brand-name{font-size:18px;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 12px;font-size:15px;color:var(--ink-2);
  border-radius:10px;transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:1px;width:18px;height:3px;border-radius:3px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
  transition:transform .25s ease,box-shadow .25s ease;
}
.nav-toggle:hover{box-shadow:var(--sh-1)}
.nav-toggle .bars{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);position:relative;transition:transform .25s ease}
.nav-toggle .bars::before,.nav-toggle .bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);transition:transform .25s ease;
}
.nav-toggle .bars::before{top:-6px}
.nav-toggle .bars::after{top:6px}
body.nav-open .nav-toggle .bars{transform:rotate(90deg)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(23,33,29,.45);
  opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:65;
}
body.nav-open .nav-overlay{opacity:1;pointer-events:auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;
  border:1.5px solid transparent;
  transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s ease,background .25s ease,color .25s ease,filter .25s ease;
}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  transition:color .2s ease;
}
.text-link .arrow{transition:transform .25s ease}
.text-link:hover .arrow{transform:translateX(4px)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ 页头 ============ */
.topline{height:4px;background:var(--grad-brand)}
.page-hero{padding:56px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{
  font-size:46px;font-weight:700;letter-spacing:.01em;line-height:1.22;
  color:var(--brand-deep);margin-bottom:16px;
}
.page-hero .lede{font-size:17px;color:var(--ink-2);max-width:60ch;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:22px}
.micro-info{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:13px;color:var(--ink-3)}
.micro-info span{display:inline-flex;align-items:center;gap:6px}
.micro-info .tick{width:5px;height:5px;border-radius:50%;background:var(--line-strong)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);padding-top:8px;
}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--brand-deep);font-weight:600}

/* ============ 概览 ============ */
.overview-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.overview-copy p{color:var(--ink-2);font-size:16px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:600;
}
.tag .mini-arrow{color:var(--accent);font-weight:700}
.overview-figure{position:relative}
.overview-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:18px;border:1px solid var(--line);box-shadow:var(--sh-2);
}
.figure-badge{
  position:absolute;right:-12px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 20px;box-shadow:var(--sh-2);
}
.figure-badge .num{font-size:26px;font-weight:700;color:var(--brand);line-height:1.2}
.figure-badge .label{font-size:13px;color:var(--ink-3)}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:8px;padding-left:30px}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;
  border-left:2px dashed var(--line-strong);
}
.tl-item{position:relative;padding-bottom:24px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-30px;top:22px;
  width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(15,92,74,.08);
}
.tl-item.is-new .tl-dot{border-color:var(--accent);box-shadow:0 0 0 4px rgba(223,138,60,.14)}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s ease,border-color .25s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.tl-version{font-size:19px;font-weight:700;color:var(--brand-deep)}
.badge-new{
  padding:3px 10px;border-radius:10px;
  background:var(--accent-soft);color:#A85A18;
  font-size:12px;font-weight:600;
}
.tl-date{font-size:13px;color:var(--ink-3)}
.tl-card p{color:var(--ink-2);font-size:15px;margin-bottom:12px}
.tl-points{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--ink-2)}
.tl-points li{display:flex;align-items:flex-start;gap:8px}
.tl-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);margin-top:11px;flex-shrink:0;
}

/* ============ FAQ 双栏 ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}
.faq-group{margin-bottom:32px}
.faq-group:last-child{margin-bottom:0}
.faq-group-title{
  font-size:20px;font-weight:600;color:var(--brand-deep);
  margin-bottom:14px;display:flex;align-items:center;gap:10px;
}
.faq-group-title .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:700;
}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;box-shadow:var(--sh-1);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.open{border-color:var(--brand);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;width:20px;height:20px;flex-shrink:0;
  transition:transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{
  padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);
}
.faq-side{position:sticky;top:96px}
.contact-card{
  background:var(--brand-soft);border:1px solid #CFE3DA;
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
}
.contact-card .icon-box{
  width:44px;height:44px;border-radius:14px;background:#fff;
  display:grid;place-items:center;color:var(--brand);margin-bottom:16px;
}
.contact-card h3{font-size:19px;font-weight:700;color:var(--brand-deep);margin-bottom:10px}
.contact-card p{font-size:14.5px;color:#3F5A50;margin-bottom:16px}
.contact-card .btn{width:100%;margin-bottom:10px}
.contact-card .btn-ghost{background:#fff}
.contact-meta{font-size:13px;color:#4C6A5E;line-height:2}
.contact-meta strong{color:var(--brand-deep)}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  background:var(--brand-deep);border-radius:var(--r-lg);
  padding:34px;color:#F7F4EE;
}
.stat-item{
  border:1px solid rgba(255,255,255,.28);border-radius:var(--r-md);
  padding:20px;background:rgba(255,255,255,.04);
  transition:border-color .25s ease,background .25s ease;
}
.stat-item:hover{border-color:var(--accent);background:rgba(255,255,255,.07)}
.stat-num{font-size:36px;font-weight:700;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.stat-num small{font-size:14px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.8)}
.stat-label{font-size:13.5px;color:rgba(255,255,255,.75);margin-top:8px}

/* ============ CTA ============ */
.cta-banner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--sh-1);
}
.cta-banner h2{font-size:28px;font-weight:700;color:var(--brand-deep);margin-bottom:12px}
.cta-banner p{color:var(--ink-2);font-size:15.5px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--brand-deep);color:#F7F4EE;padding-top:4px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:32px;
  padding:64px 0 40px;
}
.footer-brand .brand-name{color:#F7F4EE}
.footer-brand .brand-mark{background:rgba(255,255,255,.16)}
.footer-brand p{
  margin-top:16px;font-size:14px;line-height:1.9;
  color:rgba(247,244,238,.72);max-width:34ch;
}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:#fff}
.footer-col a{
  display:block;font-size:14px;line-height:2.2;
  color:rgba(247,244,238,.72);transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-col ul li{font-size:14px;line-height:2.2;color:rgba(247,244,238,.72)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(247,244,238,.6);
}
.footer-bottom a{color:rgba(247,244,238,.82);text-decoration:underline;text-underline-offset:3px}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 22px}
  .page-hero h1{font-size:42px}
  .nav-links a{padding:8px 10px;font-size:14.5px}
}
@media (max-width:991px){
  .nav-toggle{display:flex}
  .header-inner{height:64px;gap:12px}
  .brand-name{font-size:16px}
  .nav-links{
    position:fixed;top:0;right:0;z-index:70;
    width:84vw;max-width:360px;height:100vh;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:92px 24px 32px;margin:0;
    transform:translateX(105%);
    transition:transform .3s ease;
    box-shadow:var(--sh-3);overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{
    height:48px;padding:0 12px;font-size:16px;border-radius:10px;
  }
  .nav-links a.active::after{display:none}
  .header-actions .btn-ghost{display:none}
  .hero-grid{grid-template-columns:1fr}
  .breadcrumb{padding-top:0}
  .page-hero{padding:40px 0 48px}
  .page-hero h1{font-size:36px}
  .section{padding:64px 0}
  .overview-grid{grid-template-columns:1fr;gap:36px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .stat-strip{grid-template-columns:1fr;padding:26px}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .page-hero h1{font-size:30px}
  .section-title{font-size:24px}
  .section{padding:48px 0}
  .hero-actions .btn{width:100%}
  .cta-banner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .tl-card{padding:18px}
  .faq-a-inner p{padding:0 16px 18px}
  .stat-num{font-size:30px}
  .figure-badge{right:8px;bottom:-14px;padding:12px 16px}
}
@media (max-width:479px){
  body{font-size:15.5px}
  .page-hero h1{font-size:28px}
  .brand-name{font-size:15px}
  .header-inner{gap:8px}
  .btn-sm{height:36px;padding:0 14px;font-size:13px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .stat-strip{padding:20px}
}

/* roulang page: category5 */
:root{
  --brand:#0F5C4A;
  --brand-deep:#0A3F33;
  --brand-soft:#E4F0EB;
  --accent:#DF8A3C;
  --accent-soft:#FBEBDA;
  --bg:#F7F4EE;
  --bg-alt:#FFFFFF;
  --bg-tint:#F0EDE5;
  --ink:#17211D;
  --ink-2:#5A6660;
  --ink-3:#8B948F;
  --line:#E2DED4;
  --line-strong:#CFC8B8;
  --grad-brand:linear-gradient(135deg,#0F5C4A,#1E8A6D,#2FA98A);
  --grad-accent:linear-gradient(120deg,#DF8A3C,#C96E2A);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(23,33,29,.05);
  --sh-2:0 10px 28px rgba(23,33,29,.08);
  --sh-3:0 18px 48px rgba(23,33,29,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-deep)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 3px rgba(15,92,74,.18);border-radius:8px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.narrow{max-width:880px;margin:0 auto}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,244,238,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  box-shadow:0 4px 12px rgba(15,92,74,.24);
}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:10px}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 12px;
  font-size:15px;color:var(--ink-2);border-radius:10px;
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
  border-radius:3px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:12px;
  cursor:pointer;color:var(--brand);transition:transform .25s var(--ease),background .2s var(--ease);
  padding:0;
}
.nav-toggle:hover{background:var(--brand-soft)}
.nav-toggle svg{width:20px;height:20px;transition:transform .25s var(--ease)}
body.nav-open .nav-toggle svg{transform:rotate(90deg)}
body::after{
  content:"";position:fixed;inset:0;z-index:55;
  background:rgba(10,63,51,.42);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
body.nav-open::after{opacity:1;pointer-events:auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  border:0;cursor:pointer;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),filter .25s var(--ease);
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3);filter:brightness(1.06);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-secondary{background:#fff;color:var(--brand);border:1.5px solid var(--brand)}
.btn-secondary:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid rgba(15,92,74,.3)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.link-arrow span{transition:transform .25s var(--ease)}
.link-arrow:hover span{transform:translateX(4px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ 页头 Banner ============ */
.page-hero{
  position:relative;
  padding:64px 0 72px;
  background-image:linear-gradient(100deg,rgba(10,63,51,.94) 0%,rgba(15,92,74,.78) 46%,rgba(15,92,74,.42) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  color:#F7F4EE;
  border-top:4px solid transparent;
}
.page-hero::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:26px;
}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  font-size:13px;letter-spacing:.04em;color:#F1F6F3;margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{
  font-size:46px;line-height:1.24;font-weight:700;letter-spacing:.01em;
  color:#fff;max-width:820px;margin-bottom:20px;
}
.page-hero h1 .h1-divider{color:var(--accent);padding:0 6px;font-weight:400}
.hero-lead{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);
  max-width:660px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.page-hero .btn-secondary{
  background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.6);
}
.page-hero .btn-secondary:hover{background:#fff;color:var(--brand-deep);border-color:#fff}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13.5px;color:rgba(255,255,255,.78);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{
  width:5px;height:5px;border-radius:50%;background:var(--accent);font-style:normal;
}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--alt{background:var(--bg-alt)}
.section--tint{background:var(--bg-tint)}
.section-head{max-width:760px;margin-bottom:34px}
.section-title{
  position:relative;font-size:32px;line-height:1.32;font-weight:700;
  padding-left:18px;color:var(--ink);
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:6px;background:var(--grad-brand);
}
.section-sub{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--ink-2)}

/* ============ 支持主题卡 ============ */
.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.support-card{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px 22px;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.icon-box{
  width:46px;height:46px;border-radius:14px;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.icon-box svg{width:22px;height:22px}
.support-card h3{font-size:18px;font-weight:600;color:var(--ink)}
.support-card p{font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.support-card .link-arrow{margin-top:auto;padding-top:6px}

/* ============ 帮助双栏 ============ */
.help-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:40px;
  align-items:start;
}
.faq-group + .faq-group{margin-top:38px}
.faq-group-title{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:600;color:var(--ink);margin-bottom:16px;
}
.faq-group-title .dot{
  width:10px;height:10px;border-radius:3px;background:var(--grad-brand);flex:none;
}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.open{border-color:rgba(15,92,74,.34);box-shadow:var(--sh-2)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;min-height:56px;padding:16px 20px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);flex:none;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:opacity .2s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent-soft)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:#C96E2A}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{
  overflow:hidden;
  font-size:15px;line-height:1.8;color:var(--ink-2);
  padding:0 20px;
}
.faq-item.open .faq-a-inner{padding-bottom:20px}
.faq-a-inner p{margin-bottom:10px}
.faq-a-inner p:last-child{margin-bottom:0}

/* ============ 快速联系卡 ============ */
.side-card{
  position:sticky;top:96px;
  background:var(--brand-soft);
  border:1px solid rgba(15,92,74,.16);
  border-radius:var(--r-lg);
  padding:28px 24px;
  box-shadow:var(--sh-1);
}
.side-card .icon-box{background:#fff;margin-bottom:16px}
.side-card h3{font-size:19px;font-weight:700;color:var(--brand-deep);margin-bottom:10px}
.side-card p{font-size:14.5px;line-height:1.8;color:#3A5A50;margin-bottom:18px}
.side-card .btn{width:100%;margin-bottom:10px}
.side-note{
  font-size:13px;line-height:1.7;color:#4B6C61;
  padding-top:14px;border-top:1px dashed rgba(15,92,74,.22);
}
.side-note strong{color:var(--brand-deep);font-weight:600}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.stat{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  text-align:left;
  box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.stat .num{
  display:flex;align-items:baseline;gap:6px;
  font-size:38px;font-weight:700;line-height:1.1;color:var(--brand);
  letter-spacing:-.01em;
}
.stat .num small{font-size:14px;font-weight:600;color:var(--ink-2)}
.stat .label{margin-top:10px;font-size:14.5px;color:var(--ink-2)}

/* ============ 联系与表单 ============ */
.contact-layout{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:44px;align-items:start;
}
.contact-info h2{
  position:relative;font-size:30px;line-height:1.32;font-weight:700;padding-left:18px;margin-bottom:16px;
}
.contact-info h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:6px;border-radius:6px;background:var(--grad-brand);
}
.contact-info > p{font-size:15.5px;line-height:1.85;color:var(--ink-2);margin-bottom:26px;max-width:46ch}
.info-list{display:flex;flex-direction:column;gap:16px}
.info-item{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--sh-1);
}
.info-item .icon-box{width:40px;height:40px;border-radius:12px}
.info-item .icon-box svg{width:19px;height:19px}
.info-item dt{font-size:13px;color:var(--ink-3);margin-bottom:2px}
.info-item dd{margin:0;font-size:15px;color:var(--ink);font-weight:600;line-height:1.6;word-break:break-all}

.form-card{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh-2);
}
.form-card h3{font-size:21px;font-weight:700;margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:22px}
.form-tip{
  display:none;
  align-items:center;gap:10px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  border:1px solid rgba(15,92,74,.24);
  border-radius:var(--r-sm);
  padding:12px 16px;font-size:14px;margin-bottom:18px;
}
.form-tip.show{display:flex}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  font-family:inherit;
  font-size:15px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235A6660' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:16px;
  padding-right:40px;
}
.field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,92,74,.16);
}
.field input::placeholder,.field textarea::placeholder{color:#A9B2AC}
.form-note{font-size:12.5px;color:var(--ink-3);line-height:1.7;margin-top:12px}

/* ============ 关联入口 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.entry-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);text-decoration:none}
.entry-card img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;background:var(--bg-tint);
}
.entry-card h3{font-size:17px;font-weight:600;color:var(--ink)}
.entry-card p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.entry-card .link-arrow{margin-top:auto}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--brand-deep);
  color:#E9EFEB;
  padding:72px 0 28px;
  margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-mark{background:var(--brand-soft)}
.footer-brand .brand-mark svg{stroke:var(--brand-deep)}
.footer-brand p{
  margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);max-width:34ch;
}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col a,.footer-col li{
  display:block;font-size:14px;line-height:2.2;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-col ul li{list-style:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .page-hero h1{font-size:42px}
  .support-grid{grid-template-columns:repeat(2,1fr)}
  .help-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px}
  .contact-layout{gap:32px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:fixed;top:0;right:0;z-index:60;
    width:84vw;max-width:360px;height:100vh;
    flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:92px 22px 140px;
    background:var(--bg);
    border-left:1px solid var(--line);
    box-shadow:-24px 0 60px rgba(23,33,29,.18);
    transform:translateX(100%);
    transition:transform .3s var(--ease);
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{height:48px;padding:0 12px;font-size:16px;border-radius:12px}
  .nav-links a.active{background:var(--brand-soft)}
  .nav-links a.active::after{display:none}
  .nav-actions{
    position:fixed;right:0;bottom:0;z-index:61;
    width:84vw;max-width:360px;
    flex-direction:column;align-items:stretch;gap:10px;
    margin:0;padding:16px 22px 26px;
    background:var(--bg);
    border-left:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .3s var(--ease);
  }
  body.nav-open .nav-actions{transform:translateX(0)}
  .nav-actions .btn{width:100%}
  .page-hero{padding:52px 0 60px}
  .page-hero h1{font-size:36px}
  .hero-lead{font-size:16px}
  .section{padding:64px 0}
  .section-title{font-size:27px}
  .help-layout{grid-template-columns:1fr}
  .side-card{position:static}
  .contact-layout{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(3,1fr)}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:60px;gap:14px}
  .brand-name{font-size:16px}
  .page-hero h1{font-size:30px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .hero-meta{font-size:12.5px}
  .section{padding:50px 0}
  .section-title{font-size:24px;padding-left:14px}
  .section-title::before{width:5px}
  .section-sub{font-size:14.5px}
  .support-grid{grid-template-columns:1fr;gap:16px}
  .stat-strip{grid-template-columns:1fr;gap:16px}
  .entry-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .contact-info h2{font-size:25px;padding-left:14px}
  .faq-q{font-size:15px;padding:14px 16px}
  .faq-a-inner{padding:0 16px}
  .faq-item.open .faq-a-inner{padding-bottom:16px}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .page-hero h1{font-size:27px}
  body{font-size:15.5px}
  .stat .num{font-size:30px}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .nav-actions{padding-bottom:20px}
}