/* roulang page: index */
:root{
  --brand-900:#0B292C;
  --brand-700:#123B3F;
  --brand-500:#1E7A6B;
  --brand-300:#6FB3A6;
  --accent-500:#E39B2E;
  --accent-100:#FBEFD8;
  --bg:#F5F7F6;
  --surface:#FFFFFF;
  --border:#DCE5E2;
  --text:#22322F;
  --text-muted:#5F716D;
  --grad-brand:linear-gradient(135deg,#123B3F 0%,#1E7A6B 100%);
  --grad-accent:linear-gradient(135deg,#E39B2E 0%,#F2C063 100%);
  --shadow-sm:0 2px 8px rgba(11,41,44,.06);
  --shadow-md:0 8px 24px rgba(11,41,44,.08);
  --shadow-lift:0 16px 40px rgba(11,41,44,.12);
  --radius-lg:24px;
  --radius:18px;
  --radius-img:16px;
  --radius-btn:12px;
  --ease:all .25s cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:var(--ease)}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{color:var(--brand-700);margin:0 0 12px;font-weight:700;letter-spacing:0}
h1{font-size:48px;line-height:1.25}
h2{font-size:34px;line-height:1.35}
h3{font-size:23px;line-height:1.45}
h4{font-size:18px;line-height:1.5}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.num{font-variant-numeric:tabular-nums}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-head{margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-500);
  background:rgba(30,122,107,.08);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--text-muted);max-width:680px;margin:0}
.section-head.center{text-align:center}
.section-head.center p{margin:0 auto}
.lead-muted{color:var(--text-muted)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:13.5px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;min-height:40px;gap:24px}
.topbar-msg i{color:var(--brand-300);margin-right:8px}
.topbar-tel{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.topbar-tel i{color:var(--accent-500)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.site-nav{background:rgba(255,255,255,.96);border-bottom:1px solid var(--border);padding:0}
.site-nav.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-700);font-weight:700;font-size:20px}
.brand:hover{color:var(--brand-500)}
.brand-mark{
  width:24px;height:24px;border-radius:7px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:12px;
  box-shadow:var(--shadow-sm);
}
.brand-text{letter-spacing:.5px}
.nav-desktop{display:flex;align-items:center;gap:8px}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-list .nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  color:var(--brand-700);font-weight:500;font-size:15.5px;
}
.nav-list .nav-link:hover{background:rgba(30,122,107,.08);color:var(--brand-700)}
.nav-list .nav-link.active{color:var(--brand-700);font-weight:600}
.nav-list .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--grad-brand);
}
.nav-cta{
  background:var(--grad-brand);color:#fff;border-radius:999px;padding:11px 22px;font-weight:600;
  font-size:15px;border:0;margin-left:6px;
}
.nav-cta:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:12px;
  color:var(--brand-700);font-size:17px;
}
.nav-panel{background:var(--brand-900);color:#E6EFEC;width:300px}
.nav-panel .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 22px}
.nav-panel .offcanvas-title{color:#fff;font-size:18px;font-weight:700}
.nav-panel .btn-close{filter:invert(1) grayscale(1);opacity:.8}
.nav-panel .offcanvas-body{padding:12px 0}
.panel-link{
  display:flex;align-items:center;height:52px;padding:0 22px;color:#E6EFEC;font-size:16px;
  border-left:4px solid transparent;
}
.panel-link:hover{background:rgba(255,255,255,.06);color:#fff}
.panel-link.active{border-left-color:var(--accent-500);background:rgba(255,255,255,.08);color:#fff;font-weight:600}
.panel-cta{margin:18px 22px 24px}
.panel-cta .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);font-weight:600;
  font-size:15.5px;border:0;transition:var(--ease);cursor:pointer;
}
.btn-brand{background:var(--grad-brand);color:#fff}
.btn-brand:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-brand:active{transform:translateY(0)}
.btn-outline-brand{
  background:transparent;color:var(--brand-500);border:1.5px solid var(--brand-500);
}
.btn-outline-brand:hover{background:rgba(30,122,107,.08);color:var(--brand-700);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.32)}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-accent{background:var(--grad-accent);color:#3A2A08}
.btn-accent:hover{color:#3A2A08;filter:brightness(1.05);transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff}
.hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.55;
}
.hero::before{
  content:"";position:absolute;inset:0;background:var(--grad-brand);opacity:.86;
}
.hero-lines{
  position:absolute;inset:0;opacity:.12;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.9) 0 1px,transparent 1px 58px);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;min-height:560px;padding:72px 0}
.hero h1{color:#fff;font-size:50px;line-height:1.22;margin-bottom:20px}
.hero h1 .hl{background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17.5px;color:rgba(255,255,255,.86);max-width:600px;margin-bottom:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.hero-point{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#EAF4F1;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  border-radius:999px;padding:7px 16px;
}
.hero-point i{color:var(--accent-500)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{position:relative}
.hero-figure{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.22);
  box-shadow:var(--shadow-lift);aspect-ratio:4/5;background:rgba(255,255,255,.06);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:#fff;color:var(--text);
  border-radius:var(--radius);padding:16px 20px;box-shadow:var(--shadow-lift);min-width:210px;
}
.hero-float .k{font-size:13px;color:var(--text-muted);display:block;margin-bottom:2px}
.hero-float .v{font-size:30px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums}
.hero-float .v small{font-size:13px;font-weight:600;color:var(--text-muted);margin-left:4px}

/* ---------- 数据徽章带 ---------- */
.stats-band{margin-top:-44px;position:relative;z-index:5}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);transition:var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.stat-num{font-size:44px;font-weight:700;color:var(--brand-500);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-num small{font-size:15px;font-weight:600;color:var(--text-muted);margin-left:4px}
.stat-label{font-size:14px;color:var(--text-muted);margin-top:6px}
.stat-card.accent .stat-num{color:var(--accent-500)}

/* ---------- 服务能力 7+5 ---------- */
.service-layout{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.service-main{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--ease);display:flex;flex-direction:column;
}
.service-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.service-main .cover{aspect-ratio:16/10;overflow:hidden}
.service-main .cover img{width:100%;height:100%;object-fit:cover;transition:var(--ease)}
.service-main:hover .cover img{transform:scale(1.04)}
.service-main .body{padding:28px 30px 30px}
.service-main h3{font-size:24px}
.service-main p{color:var(--text-muted);margin-bottom:18px}
.service-side{display:flex;flex-direction:column;gap:20px}
.service-mini{
  display:flex;align-items:center;gap:18px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px 22px;min-height:96px;box-shadow:var(--shadow-sm);
  transition:var(--ease);flex:1;
}
.service-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:var(--brand-300)}
.service-mini .icon{
  width:48px;height:48px;flex:0 0 48px;border-radius:14px;background:rgba(30,122,107,.1);
  color:var(--brand-500);display:flex;align-items:center;justify-content:center;font-size:19px;
}
.service-mini h4{margin:0 0 4px;font-size:19px}
.service-mini p{margin:0;font-size:14.5px;color:var(--text-muted);line-height:1.6}

/* ---------- 深色优势区 ---------- */
.section-dark{background:var(--brand-900);color:#E6EFEC}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark p{color:rgba(255,255,255,.72)}
.adv-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.adv-list{display:grid;grid-template-columns:1fr 1fr;gap:28px 32px;margin-top:8px}
.adv-item .v{font-size:48px;font-weight:700;color:#fff;line-height:1.1;font-variant-numeric:tabular-nums}
.adv-item .v span{font-size:16px;color:var(--accent-500);margin-left:4px;font-weight:600}
.adv-item .l{font-size:13.5px;color:rgba(255,255,255,.62);padding-top:10px;border-top:1px solid rgba(255,255,255,.16);margin-top:12px}
.adv-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.14);margin-top:36px;overflow:hidden}
.adv-bar span{display:block;height:100%;width:82%;border-radius:999px;background:var(--grad-accent)}

/* ---------- 案例错位双列 ---------- */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.case-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--ease);display:block;color:var(--text);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);color:var(--text)}
.case-card .cover{aspect-ratio:16/10;overflow:hidden}
.case-card .cover img{width:100%;height:100%;object-fit:cover;transition:var(--ease)}
.case-card:hover .cover img{transform:scale(1.04)}
.case-card .body{padding:26px 28px 28px}
.case-card h3{font-size:22px;margin-bottom:10px}
.case-card:hover h3{color:var(--brand-500)}
.case-card p{color:var(--text-muted);font-size:15px;margin-bottom:16px}
.case-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.case-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--border);padding-top:16px}
.case-foot .go{color:var(--brand-500);font-weight:600;font-size:14.5px}
.case-col-2{padding-top:56px}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  border-radius:999px;padding:5px 13px;background:rgba(30,122,107,.1);color:var(--brand-700);
}
.badge-data{background:var(--accent-100);color:#94631A}
.badge-solid{background:rgba(11,41,44,.78);color:#fff}

/* ---------- 方案交替图文 ---------- */
.plan-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:44px 0;border-bottom:1px solid var(--border)}
.plan-row:last-child{border-bottom:0}
.plan-row.reverse .plan-media{order:2}
.plan-num{
  font-size:64px;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1.5px var(--brand-300);margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.plan-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-sm);aspect-ratio:16/11}
.plan-media img{width:100%;height:100%;object-fit:cover}
.plan-body h3{font-size:26px;margin-bottom:14px}
.plan-body p{color:var(--text-muted)}
.plan-list{margin-top:18px;display:grid;gap:10px}
.plan-list li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.plan-list li i{color:var(--brand-500);margin-top:6px}

/* ---------- 最新信息 CMS ---------- */
.news-section{background:var(--bg)}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.news-head p{color:var(--text-muted);margin:0;max-width:600px}
.more-link{color:var(--brand-500);font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;gap:8px}
.more-link:hover{gap:12px;color:var(--brand-700)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--ease);display:flex;flex-direction:column;
  color:var(--text);height:100%;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);color:var(--text)}
.news-card .cover{aspect-ratio:16/10;overflow:hidden}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:var(--ease)}
.news-card:hover .cover img{transform:scale(1.04)}
.news-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-card h3{
  font-size:19px;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover h3{color:var(--brand-500)}
.news-card .desc{
  font-size:14.5px;color:var(--text-muted);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--border);padding-top:14px;font-size:13.5px;color:var(--text-muted)}
.news-foot .go{color:var(--brand-500);font-weight:600}
.empty-state{
  grid-column:1 / -1;text-align:center;padding:64px 24px;background:var(--surface);
  border:1px dashed var(--border);border-radius:var(--radius);
}
.empty-state i{font-size:34px;color:var(--brand-300);margin-bottom:16px;display:block}
.empty-state p{color:var(--text-muted);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-list{max-width:920px;margin:0 auto}
.accordion-item.faq-item{border:0;border-bottom:1px solid var(--border);background:transparent}
.accordion-button.faq-btn{
  width:100%;background:transparent;border:0;box-shadow:none;border-radius:0;
  min-height:64px;padding:18px 44px 18px 18px;font-size:17.5px;font-weight:600;color:var(--brand-700);
  position:relative;text-align:left;line-height:1.6;
}
.accordion-button.faq-btn:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none}
.accordion-button.faq-btn::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:var(--ease);
}
.accordion-button.faq-btn:not(.collapsed)::before{opacity:1}
.accordion-button.faq-btn::after{
  content:"+";font-size:24px;line-height:1;color:var(--brand-500);position:absolute;right:16px;top:50%;
  transform:translateY(-50%);transition:var(--ease);font-weight:400;
}
.accordion-button.faq-btn:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg)}
.accordion-button.faq-btn:focus{box-shadow:none;outline:none}
.accordion-body.faq-body{padding:0 48px 22px 18px;color:var(--text-muted);font-size:16px;line-height:1.85}

/* ---------- 联系 ---------- */
.contact-section{background:var(--surface)}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.contact-info{background:var(--brand-900);color:#E6EFEC;border-radius:var(--radius-lg);padding:34px 32px}
.contact-info h3{color:#fff;font-size:22px;margin-bottom:14px}
.contact-info > p{color:rgba(255,255,255,.7);font-size:15px}
.contact-line{display:flex;gap:16px;margin-top:22px}
.contact-line .icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:50%;background:rgba(111,179,166,.2);
  color:var(--brand-300);display:flex;align-items:center;justify-content:center;font-size:17px;
}
.contact-line .t{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:2px}
.contact-line .v{font-size:16px;color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.contact-form{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:34px 32px}
.contact-form h3{font-size:22px;margin-bottom:8px}
.contact-form .hint{color:var(--text-muted);font-size:14.5px;margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--brand-700);margin-bottom:8px}
.form-control,.form-select{
  height:48px;border-radius:var(--radius-btn);border:1px solid var(--border);background:#fff;
  padding:0 16px;font-size:15px;color:var(--text);width:100%;box-shadow:none;
}
textarea.form-control{height:120px;padding:12px 16px;line-height:1.7;resize:vertical}
.form-control:focus,.form-select:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.14);outline:none}
.form-control::placeholder{color:#9BABA7}
.form-note{font-size:13px;color:var(--text-muted);margin-top:14px}

/* ---------- CTA 横幅 ---------- */
.cta-band{background:var(--grad-brand);border-radius:var(--radius-lg);padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;color:#fff;box-shadow:var(--shadow-md)}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);margin:0;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#E6EFEC;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:0}
.footer-col{padding:0 28px;border-right:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0;border-right:0}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:20px;font-weight:700;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.footer-brand .brand-mark{background:var(--grad-accent);color:#3A2A08}
.footer-col p{color:rgba(255,255,255,.62);font-size:14.5px}
.footer-title{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px}
.footer-links li{margin-bottom:12px}
.footer-links a,.footer-col a{color:rgba(255,255,255,.72);font-size:14.5px}
.footer-links a:hover,.footer-col a:hover{color:#fff}
.footer-tel{font-size:26px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;display:block;margin-bottom:6px}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{
  flex:1;height:46px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14.5px;
}
.footer-form input::placeholder{color:rgba(255,255,255,.5)}
.footer-form input:focus{outline:none;border-color:var(--brand-300);background:rgba(255,255,255,.12)}
.footer-form .btn{height:46px;padding:0 20px;border-radius:var(--radius-btn)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  h1{font-size:44px}
  .hero h1{font-size:44px}
}
@media (max-width:991.98px){
  .section{padding:76px 0}
  .hero-inner{grid-template-columns:1fr;gap:40px;min-height:0;padding:56px 0 64px;text-align:left}
  .hero-figure{aspect-ratio:16/11}
  .hero-float{position:static;margin-top:16px;left:0;bottom:0}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stats-band{margin-top:-32px}
  .service-layout{grid-template-columns:1fr}
  .adv-grid{grid-template-columns:1fr;gap:36px}
  .case-grid{grid-template-columns:1fr}
  .case-col-2{padding-top:0}
  .plan-row{grid-template-columns:1fr;gap:26px;padding:36px 0}
  .plan-row.reverse .plan-media{order:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .footer-col{padding:0 24px;border-right:0}
  .footer-col:nth-child(odd){padding-left:0}
  .footer-col:nth-child(even){padding-right:0;border-left:1px solid rgba(255,255,255,.12)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:30px}
  h2{font-size:26px}
  h3{font-size:21px}
  .hero h1{font-size:31px}
  .hero-sub{font-size:16px}
  .section{padding:60px 0}
  .section-head{margin-bottom:28px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-num{font-size:34px}
  .stat-card{padding:18px 16px}
  .news-grid{grid-template-columns:1fr}
  .news-head{flex-direction:column;align-items:flex-start}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-col{padding:0 !important;border:0 !important}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
  .contact-form,.contact-info{padding:26px 20px}
  .cta-band{padding:30px 22px}
  .adv-list{gap:22px}
  .adv-item .v{font-size:38px}
  .case-card .body{padding:22px 20px}
  .accordion-button.faq-btn{font-size:16.5px;padding-right:40px}
  .accordion-body.faq-body{padding-right:20px}
  .plan-num{font-size:48px}
}

/* roulang page: article */
:root{
  --brand-900:#0B292C;
  --brand-700:#123B3F;
  --brand-500:#1E7A6B;
  --brand-300:#6FB3A6;
  --accent-500:#E39B2E;
  --accent-100:#FBEFD8;
  --bg:#F5F7F6;
  --surface:#FFFFFF;
  --border:#DCE5E2;
  --text:#22322F;
  --text-muted:#5F716D;
  --grad-brand:linear-gradient(135deg,#123B3F 0%,#1E7A6B 100%);
  --grad-accent:linear-gradient(135deg,#E39B2E 0%,#F2C063 100%);
  --radius-lg:24px;
  --radius:18px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-sm:0 2px 8px rgba(11,41,44,.06);
  --shadow-md:0 8px 24px rgba(11,41,44,.08);
  --shadow-lift:0 16px 40px rgba(11,41,44,.12);
  --ease:all .25s cubic-bezier(.2,.7,.3,1);
  --sec-pad:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:hover{color:var(--brand-500)}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;color:var(--brand-700);font-weight:700;letter-spacing:0}
h1{font-size:46px;line-height:1.25}
h2{font-size:34px;line-height:1.35}
h3{font-size:23px;line-height:1.45}
h4{font-size:18px;line-height:1.6}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding:0 24px;margin:0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:var(--ease);cursor:pointer;text-align:center}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--brand-500);border:1.5px solid var(--brand-500)}
.btn-outline:hover{background:rgba(30,122,107,.08);color:var(--brand-500);transform:translateY(-2px)}
.btn-accent{background:var(--grad-accent);color:#2A1C05;border:none}
.btn-accent:hover{color:#2A1C05;filter:brightness(1.05)}
.badge-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;font-size:13px;line-height:1.6;font-weight:600}
.badge-soft{background:rgba(111,179,166,.18);color:var(--brand-700)}
.badge-accent{background:var(--accent-100);color:#9A6612}

/* ============ header / nav ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.62);transition:var(--ease)}
.site-header.is-scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);box-shadow:var(--shadow-sm)}
.topbar{background:var(--brand-900);color:rgba(255,255,255,.78);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px}
.topbar-msg i,.topbar-tel i{color:var(--brand-300);margin-right:8px}
.topbar-tel{color:#fff;font-weight:600}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--brand-700)}
.brand-mark{width:24px;height:24px;border-radius:7px;background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;flex:none}
.nav-desktop{display:flex;align-items:center;gap:30px}
.nav-list{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0}
.nav-link{position:relative;display:inline-block;padding:6px 2px;font-size:15px;font-weight:500;color:var(--brand-700);border-radius:6px}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:3px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:var(--ease)}
.nav-link:hover{background:rgba(111,179,166,.16);color:var(--brand-700)}
.nav-link.active{color:var(--brand-700);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-cta{display:inline-flex;align-items:center;height:42px;padding:0 22px;border-radius:999px;background:var(--grad-brand);color:#fff;font-size:14px;font-weight:600;box-shadow:var(--shadow-sm)}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.nav-toggle{width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;color:var(--brand-700);font-size:18px;display:inline-flex;align-items:center;justify-content:center}
.offcanvas.nav-panel{background:var(--brand-900);color:#fff;width:300px}
.nav-panel .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12)}
.nav-panel .offcanvas-title{color:#fff;font-weight:700}
.nav-panel .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}
.panel-list{list-style:none;margin:0;padding:8px 0}
.panel-list a{display:flex;align-items:center;height:52px;padding:0 22px;color:rgba(255,255,255,.86);font-size:15.5px;width:100%}
.panel-list a:hover{background:rgba(255,255,255,.06);color:#fff}
.panel-list a.active{background:rgba(255,255,255,.08);color:#fff;border-left:4px solid var(--accent-500);font-weight:700}
.panel-contact{padding:16px 22px 28px}
.panel-contact .btn{width:100%}

/* ============ page banner ============ */
.page-banner{position:relative;background:var(--brand-900);color:#fff;overflow:hidden}
.page-banner::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.28}
.page-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,41,44,.94) 0%,rgba(18,59,63,.82) 55%,rgba(30,122,107,.72) 100%)}
.page-banner .banner-inner{position:relative;z-index:2;padding:34px 0 42px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.4)}
.crumb .current{color:rgba(255,255,255,.62);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);font-size:13px;color:#E6EFEC;margin-bottom:18px}
.banner-tag i{color:var(--brand-300)}

/* ============ article ============ */
.article-wrap{padding:56px 0 72px;background:var(--surface)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:0}
.article-main{max-width:820px;margin:0 auto;width:100%}
.article-head{margin-bottom:32px}
.article-head h1{font-size:36px;line-height:1.4;color:var(--brand-700)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--text-muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--brand-300);display:inline-block}
.article-meta .author{display:inline-flex;align-items:center;gap:8px}
.article-meta .avatar{width:26px;height:26px;border-radius:50%;background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}
.article-divider{height:1px;background:var(--border);margin:28px 0 34px}

.article-body{font-size:17px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:27px;line-height:1.45;margin:44px 0 18px;padding-top:16px}
.article-body h2::before{content:"";position:absolute;top:0;left:0;width:24px;height:4px;border-radius:3px;background:var(--grad-brand)}
.article-body h3{font-size:21px;margin:32px 0 14px}
.article-body h4{font-size:18px;margin:24px 0 12px}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.3em}
.article-body li{margin-bottom:.5em}
.article-body ul li::marker{color:var(--brand-500)}
.article-body ol li::marker{color:var(--brand-500);font-weight:700}
.article-body a{color:var(--brand-500)}
.article-body a:hover{text-decoration:underline;text-underline-offset:3px}
.article-body img{border-radius:var(--radius-img);box-shadow:var(--shadow-sm);margin:22px auto;width:100%;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-muted);margin-top:10px}
.article-body blockquote{margin:26px 0;padding:20px 22px;background:var(--accent-100);border-left:4px solid var(--accent-500);border-radius:0 var(--radius) var(--radius) 0;color:#5C4413}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left}
.article-body th{background:rgba(30,122,107,.08);color:var(--brand-700);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(30,122,107,.04)}
.article-body code{background:rgba(30,122,107,.08);color:var(--brand-700);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body pre{background:var(--brand-900);color:#E6EFEC;padding:18px 20px;border-radius:var(--radius);overflow-x:auto;font-size:14px;line-height:1.7}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body hr{border:0;height:1px;background:var(--border);margin:34px 0}

.article-empty{text-align:center;padding:64px 24px;border:1px dashed var(--border);border-radius:var(--radius-lg);background:var(--bg)}
.article-empty i{font-size:38px;color:var(--brand-300)}
.article-empty h2{font-size:24px;margin:18px 0 10px}
.article-empty p{color:var(--text-muted);margin-bottom:24px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--border)}
.tag-row .label{font-size:13px;color:var(--text-muted);margin-right:4px}
.tag-row a{padding:6px 14px;border-radius:999px;background:rgba(111,179,166,.16);color:var(--brand-700);font-size:13px;font-weight:600}
.tag-row a:hover{background:rgba(30,122,107,.2);color:var(--brand-700)}
.article-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:28px}

/* ============ TOC ============ */
.toc-aside{display:none}
.toc-card{position:sticky;top:110px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.toc-card .toc-title{font-size:13px;font-weight:700;color:var(--brand-700);letter-spacing:.06em;padding-bottom:12px;border-bottom:1px solid var(--border);margin-bottom:12px}
.toc-card ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc-card li{margin-bottom:8px}
.toc-card a{display:block;font-size:14px;color:var(--text-muted);line-height:1.6;padding-left:14px;position:relative}
.toc-card a::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-300)}
.toc-card a:hover{color:var(--brand-500)}
@media(min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,820px) 220px;gap:48px;justify-content:center;align-items:start}
  .article-main{margin:0;max-width:none}
  .toc-aside{display:block}
}

/* ============ related cards ============ */
.section{padding:var(--sec-pad) 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px}
.section-head h2{font-size:32px}
.section-head .sub{color:var(--text-muted);font-size:15px;margin-top:10px;max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand-500);font-size:15px}
.link-more:hover{gap:12px;color:var(--brand-500)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.info-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--ease);display:flex;flex-direction:column}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.info-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:var(--ease)}
.info-card:hover .thumb img{transform:scale(1.04)}
.info-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.info-card h3{font-size:19px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-card:hover h3{color:var(--brand-500)}
.info-card .desc{font-size:14.5px;color:var(--text-muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.info-card .meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-top:auto;padding-top:6px}
.info-card .meta i{color:var(--brand-500)}

/* ============ CTA ============ */
.cta-band{background:var(--grad-brand);border-radius:var(--radius-lg);padding:52px 48px;color:#fff;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--shadow-md);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.08)}
.cta-band h2{color:#fff;font-size:30px;position:relative;z-index:2}
.cta-band p{color:rgba(255,255,255,.82);margin:12px 0 0;font-size:15px;position:relative;z-index:2}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}
.cta-band .btn-outline{color:#fff;border-color:rgba(255,255,255,.6)}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff}

/* ============ footer ============ */
.site-footer{background:var(--brand-900);color:#E6EFEC;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 28px;border-right:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{border-right:none;padding-right:0}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-links a:hover{color:#fff}
.footer-form{display:flex;gap:10px;margin-top:14px}
.footer-form input{flex:1;height:46px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;outline:none}
.footer-form input::placeholder{color:rgba(255,255,255,.45)}
.footer-form input:focus{border-color:var(--brand-300);background:rgba(255,255,255,.1)}
.footer-form .btn{height:46px;padding:0 20px}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:56px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom a{color:rgba(255,255,255,.8)}
.footer-bottom a:hover{color:#fff}

/* ============ responsive ============ */
@media (max-width:1199px){
  :root{--sec-pad:80px}
  h1{font-size:40px}
}
@media (max-width:991px){
  :root{--sec-pad:72px}
  h1{font-size:34px}
  h2{font-size:28px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}
  .footer-col{padding:0;border-right:none}
  .article-head h1{font-size:30px}
  .article-body{font-size:16.5px}
  .cta-band{padding:40px 28px}
  .cta-band h2{font-size:25px}
}
@media (max-width:767px){
  :root{--sec-pad:60px}
  .container{padding:0 16px}
  h1{font-size:29px}
  h2{font-size:24px}
  h3{font-size:20px}
  .card-grid{grid-template-columns:1fr}
  .article-head h1{font-size:26px;line-height:1.45}
  .article-wrap{padding:36px 0 56px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin-top:36px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .cta-band{padding:34px 22px;border-radius:var(--radius)}
  .section-head h2{font-size:24px}
}
@media (max-width:575px){
  h1{font-size:26px}
  .banner-inner{padding:26px 0 30px}
  .crumb .current{max-width:220px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B292C;
  --brand-700:#123B3F;
  --brand-500:#1E7A6B;
  --brand-300:#6FB3A6;
  --accent-500:#E39B2E;
  --accent-100:#FBEFD8;
  --bg:#F5F7F6;
  --surface:#FFFFFF;
  --border:#DCE5E2;
  --text:#22322F;
  --text-muted:#5F716D;
  --grad-brand:linear-gradient(135deg,#123B3F 0%,#1E7A6B 100%);
  --grad-accent:linear-gradient(135deg,#E39B2E 0%,#F2C063 100%);
  --shadow-sm:0 2px 8px rgba(11,41,44,.06);
  --shadow-md:0 8px 24px rgba(11,41,44,.08);
  --shadow-lift:0 16px 40px rgba(11,41,44,.12);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-btn:12px;
  --ease:all .25s cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:var(--ease);}
a:hover{color:var(--brand-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--brand-700);font-weight:700;line-height:1.35;}
h1{font-size:44px;line-height:1.25;}
h2{font-size:34px;}
h3{font-size:23px;}
h4{font-size:18px;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (max-width:767px){.container{padding-left:16px;padding-right:16px;}}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  font-size:13.5px;
  line-height:1;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:42px;gap:24px;
}
.topbar-msg{display:inline-flex;align-items:center;gap:8px;}
.topbar-msg i{color:var(--accent-500);}
.topbar-tel{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;letter-spacing:.3px;}
.topbar-tel i{color:var(--brand-300);}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;}
.site-nav{
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:var(--ease);
}
.site-header.scrolled .site-nav{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.96);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-700);font-size:19px;letter-spacing:.2px;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:24px;height:24px;border-radius:7px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:12px;flex:0 0 24px;
}
.brand-text{white-space:nowrap;}
.nav-desktop{display:flex;align-items:center;gap:30px;}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 10px;
  border-radius:6px;
  font-size:15.5px;
  font-weight:500;
  color:var(--brand-700);
  transition:var(--ease);
}
.nav-link:hover{background:rgba(30,122,107,.08);color:var(--brand-700);}
.nav-link.active{color:var(--brand-700);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:0;height:3px;border-radius:3px;
  background:var(--grad-brand);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 24px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);filter:brightness(1.06);}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--brand-700);font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:var(--ease);
}
.nav-toggle:hover{background:var(--bg);}
.offcanvas.nav-panel{background:var(--brand-900);color:#E6EFEC;width:308px;}
.nav-panel .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 22px;}
.nav-panel .offcanvas-title{color:#fff;font-weight:700;font-size:17px;}
.nav-panel .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.8;}
.nav-panel .offcanvas-body{padding:14px 0;}
.panel-link{
  display:flex;align-items:center;
  min-height:52px;padding:0 22px;
  color:#E6EFEC;font-size:16px;font-weight:500;
  border-left:4px solid transparent;
  transition:var(--ease);
}
.panel-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.panel-link.active{border-left-color:var(--accent-500);color:#fff;font-weight:600;background:rgba(255,255,255,.05);}
.panel-cta{
  display:block;margin:16px 22px 6px;text-align:center;
  height:48px;line-height:48px;border-radius:var(--r-btn);
  background:var(--grad-accent);color:#3A2400;font-weight:700;
}
.panel-cta:hover{color:#3A2400;filter:brightness(1.05);}

/* ============ 页头横幅 ============ */
.page-banner{
  position:relative;
  min-height:280px;
  display:flex;align-items:center;
  background-image:
    linear-gradient(135deg,rgba(11,41,44,.94) 0%,rgba(18,59,63,.88) 45%,rgba(30,122,107,.82) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.10) 0 1px,transparent 1px 46px);
  opacity:.5;pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding:56px 0;}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:16px;
}
.breadcrumb-line a{color:rgba(255,255,255,.8);}
.breadcrumb-line a:hover{color:#fff;}
.breadcrumb-line .sep{color:rgba(255,255,255,.4);}
.breadcrumb-line .current{color:var(--accent-500);}
.banner-inner h1{color:#fff;font-size:46px;max-width:760px;}
.banner-sub{
  margin-top:14px;max-width:640px;
  color:rgba(255,255,255,.82);font-size:16.5px;line-height:1.75;
}
.banner-deco{
  position:absolute;right:4%;top:50%;transform:translateY(-50%);
  width:260px;height:200px;opacity:.4;pointer-events:none;
}
.banner-deco .shaft-line{stroke:var(--brand-300);stroke-width:2;fill:none;}
.banner-deco .shaft-arrow{stroke:var(--accent-500);stroke-width:2.5;fill:none;}

/* ============ 数据徽章带 ============ */
.stat-strip{margin-top:-46px;position:relative;z-index:5;}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.stat-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);box-shadow:var(--shadow-sm);
  padding:22px 24px;transition:var(--ease);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.stat-value{
  font-size:42px;font-weight:700;line-height:1.1;color:var(--brand-500);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-value .unit{font-size:15px;font-weight:600;color:var(--text-muted);margin-left:4px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--text-muted);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--bg);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--text-muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(30,122,107,.1);color:var(--brand-700);
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.eyebrow i{color:var(--brand-500);}

/* ============ 目录 + 长文 ============ */
.cat-layout{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.toc-wrap{position:sticky;top:104px;}
.toc-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);box-shadow:var(--shadow-sm);
  padding:22px 20px;
}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand-300);margin-bottom:14px;
}
.toc-list li + li{margin-top:4px;}
.toc-list a{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:15px;color:var(--text);border-left:3px solid transparent;
  transition:var(--ease);
}
.toc-list a:hover{background:rgba(30,122,107,.08);color:var(--brand-700);border-left-color:var(--brand-300);}
.toc-list a.is-on{background:var(--accent-100);color:var(--brand-700);font-weight:600;border-left-color:var(--accent-500);}
.toc-tip{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--border);
  font-size:13.5px;color:var(--text-muted);line-height:1.7;
}
.toc-tip strong{color:var(--brand-700);display:block;font-size:15px;margin-bottom:6px;}

.article-body{max-width:none;}
.article-body > .lead{
  font-size:17px;color:var(--text);background:var(--surface);
  border:1px solid var(--border);border-left:4px solid var(--brand-500);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--shadow-sm);
  margin-bottom:44px;
}
.sec-block{padding:8px 0 44px;border-bottom:1px solid var(--border);margin-bottom:44px;}
.sec-block:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.sec-block > h2{position:relative;padding-left:18px;margin-bottom:20px;font-size:30px;}
.sec-block > h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;border-radius:4px;
  background:var(--grad-brand);
}
.sec-body{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;}
.sec-body.reverse .sec-media{order:2;}
.sec-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--shadow-sm);
}
.sec-text p{color:var(--text);}
.sec-points{margin-top:18px;display:grid;gap:10px;}
.sec-points li{
  position:relative;padding-left:24px;font-size:15.5px;color:var(--text-muted);
}
.sec-points li::before{
  content:"";position:absolute;left:4px;top:11px;
  width:8px;height:8px;border-radius:50%;background:var(--brand-500);
}
.param-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.param-list span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--accent-100);color:#8A5A0B;
}

/* ============ 适用场景 ============ */
.scene-list{display:grid;gap:16px;}
.scene-row{
  display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:22px;align-items:center;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);box-shadow:var(--shadow-sm);
  padding:22px 26px;transition:var(--ease);
}
.scene-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:var(--brand-300);}
.scene-icon{
  width:56px;height:56px;border-radius:16px;
  background:rgba(30,122,107,.1);color:var(--brand-500);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.scene-row h3{font-size:19px;margin-bottom:6px;}
.scene-row p{font-size:15px;color:var(--text-muted);margin:0;}
.scene-tag{
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--bg);color:var(--brand-700);border:1px solid var(--border);
  white-space:nowrap;
}

/* ============ 交付标准卡片 ============ */
.deliver-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.deliver-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);box-shadow:var(--shadow-sm);
  padding:26px 24px;transition:var(--ease);
}
.deliver-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.deliver-num{
  font-size:28px;font-weight:700;color:transparent;
  -webkit-text-stroke:1.4px var(--brand-300);
  font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.deliver-card h3{font-size:19px;margin-bottom:10px;}
.deliver-card p{font-size:15px;color:var(--text-muted);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;text-align:left;
  padding:22px 4px 22px 16px;cursor:pointer;
  font-size:17.5px;font-weight:600;color:var(--brand-700);
  position:relative;transition:var(--ease);
}
.faq-btn::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:var(--ease);
}
.faq-btn[aria-expanded="true"]::before{opacity:1;}
.faq-btn:hover{color:var(--brand-500);}
.faq-btn .faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(30,122,107,.1);color:var(--brand-500);
  font-size:12px;transition:var(--ease);
}
.faq-btn[aria-expanded="true"] .faq-ico{transform:rotate(45deg);background:var(--accent-100);color:#8A5A0B;}
.faq-body{padding:0 40px 24px 16px;color:var(--text-muted);font-size:16px;line-height:1.85;}

/* ============ CTA 横幅 ============ */
.cta-banner{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--grad-brand);
  padding:52px 56px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  box-shadow:var(--shadow-md);
}
.cta-banner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  border-radius:50%;background:rgba(111,179,166,.16);
}
.cta-banner h2{color:#fff;font-size:30px;margin-bottom:12px;position:relative;z-index:2;}
.cta-banner p{color:rgba(255,255,255,.82);margin:0;max-width:640px;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:var(--ease);text-align:center;
}
.btn-primary{
  background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-sm);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);filter:brightness(1.08);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  background:transparent;border-color:var(--brand-500);color:var(--brand-500);
}
.btn-outline:hover{background:rgba(30,122,107,.08);color:var(--brand-700);}
.btn-ghost{
  background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;}
.btn-accent{background:var(--grad-accent);color:#3A2400;font-weight:700;}
.btn-accent:hover{color:#3A2400;filter:brightness(1.05);transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#E6EFEC;padding:72px 0 0;margin-top:96px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;
}
.footer-col{padding:0 30px;}
.footer-col:first-child{padding-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.12);}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{background:var(--grad-accent);color:#3A2400;}
.footer-col p{color:rgba(255,255,255,.62);font-size:14.5px;line-height:1.8;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li + li{margin-top:11px;}
.footer-links a{color:rgba(255,255,255,.68);font-size:14.5px;}
.footer-links a:hover{color:#fff;}
.footer-form{display:flex;gap:10px;margin-top:14px;}
.footer-form input{
  flex:1;height:48px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;
  padding:0 16px;font-size:14.5px;transition:var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.45);}
.footer-form input:focus{outline:0;border-color:var(--brand-300);background:rgba(255,255,255,.12);}
.footer-form .btn{height:48px;padding:0 22px;}
.footer-bottom{
  margin-top:56px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .banner-inner h1{font-size:40px;}
  .banner-deco{opacity:.25;width:200px;}
  .cat-layout{gap:40px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  h1{font-size:34px;}
  h2{font-size:28px;}
  .banner-inner h1{font-size:34px;}
  .banner-deco{display:none;}
  .page-banner{min-height:240px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .cat-layout{grid-template-columns:1fr;gap:28px;}
  .toc-wrap{position:static;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;}
  .toc-list li + li{margin-top:0;}
  .toc-list a{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;}
  .toc-list a.is-on{border-left:0;border-bottom-color:var(--accent-500);}
  .toc-tip{display:none;}
  .sec-body{grid-template-columns:1fr;gap:22px;}
  .sec-body.reverse .sec-media{order:0;}
  .deliver-grid{grid-template-columns:repeat(2,1fr);}
  .cta-banner{grid-template-columns:1fr;padding:38px 30px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px;}
  .footer-col{padding:0;}
  .footer-col + .footer-col{border-left:0;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .section{padding:60px 0;}
  h1{font-size:29px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .banner-inner{padding:44px 0;}
  .banner-inner h1{font-size:28px;}
  .banner-sub{font-size:15.5px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat-value{font-size:32px;}
  .stat-card{padding:18px;}
  .stat-strip{margin-top:-30px;}
  .sec-block > h2{font-size:23px;}
  .scene-row{grid-template-columns:48px minmax(0,1fr);gap:16px;padding:18px;}
  .scene-icon{width:44px;height:44px;font-size:18px;border-radius:14px;}
  .scene-tag{grid-column:1 / -1;justify-self:start;}
  .deliver-grid{grid-template-columns:1fr;}
  .faq-btn{font-size:16px;padding:18px 4px 18px 14px;}
  .cta-banner{padding:30px 22px;border-radius:var(--r-md);}
  .cta-banner h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B292C;
  --brand-700:#123B3F;
  --brand-500:#1E7A6B;
  --brand-300:#6FB3A6;
  --accent-500:#E39B2E;
  --accent-100:#FBEFD8;
  --bg:#F5F7F6;
  --surface:#FFFFFF;
  --border:#DCE5E2;
  --text:#22322F;
  --text-muted:#5F716D;
  --grad-brand:linear-gradient(135deg,#123B3F 0%,#1E7A6B 100%);
  --grad-accent:linear-gradient(135deg,#E39B2E 0%,#F2C063 100%);
  --shadow-sm:0 2px 8px rgba(11,41,44,.06);
  --shadow-md:0 8px 24px rgba(11,41,44,.08);
  --shadow-lift:0 16px 40px rgba(11,41,44,.12);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-btn:12px;
  --ease:all .25s cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:var(--ease)}
a:hover{color:var(--brand-700)}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;color:var(--brand-700);font-weight:700;line-height:1.35}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:var(--ease);text-decoration:none;white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);color:#fff;border:0;box-shadow:var(--shadow-sm);
}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:transparent;color:var(--brand-500);border:1.5px solid var(--brand-500);
}
.btn-outline:hover{background:rgba(30,122,107,.08);color:var(--brand-700);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-2px)}
.btn-accent{background:var(--grad-accent);color:#3B2A08;font-weight:700;border:0}
.btn-accent:hover{color:#3B2A08;filter:brightness(1.05);transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 18px;font-size:14.5px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:13.5px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:42px;gap:20px}
.topbar-msg{display:inline-flex;align-items:center;gap:8px}
.topbar-msg i{color:var(--brand-300)}
.topbar-tel{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:.4px}
.topbar-tel i{color:var(--accent-500)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);transition:var(--ease)}
.site-header.is-scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:var(--shadow-sm)}
.site-nav{border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--brand-700);letter-spacing:.2px}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:24px;height:24px;border-radius:8px;background:var(--grad-brand);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;flex:0 0 24px;
}
.nav-desktop{align-items:center;gap:30px}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;display:inline-block;padding:9px 4px;border-radius:6px;
  font-size:15.5px;font-weight:500;color:var(--brand-700);transition:var(--ease);
}
.nav-link:hover{background:rgba(30,122,107,.08);color:var(--brand-500)}
.nav-link.active{color:var(--brand-700);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:4px;right:4px;bottom:2px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.nav-cta{
  display:inline-flex;align-items:center;height:42px;padding:0 22px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-sm);transition:var(--ease);
}
.nav-cta:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.nav-toggle{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--border);
  background:#fff;color:var(--brand-700);font-size:18px;display:inline-flex;
  align-items:center;justify-content:center;transition:var(--ease);
}
.nav-toggle:hover{background:rgba(30,122,107,.08);color:var(--brand-500)}

/* 移动端抽屉 */
.nav-panel{background:var(--brand-900);color:#fff;width:300px}
.nav-panel .offcanvas-header{padding:20px 22px;border-bottom:1px solid rgba(255,255,255,.12);align-items:center}
.brand-light{color:#fff}
.brand-light:hover{color:#fff}
.panel-close{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.24);
  background:transparent;color:#fff;font-size:16px;
}
.panel-close:hover{background:rgba(255,255,255,.12)}
.nav-panel .offcanvas-body{padding:12px 0 26px;display:flex;flex-direction:column}
.panel-link{
  position:relative;display:flex;align-items:center;height:52px;padding:0 22px;
  color:rgba(255,255,255,.86);font-size:15.5px;font-weight:500;
}
.panel-link:hover{background:rgba(255,255,255,.08);color:#fff}
.panel-link.active{color:#fff;font-weight:600}
.panel-link.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;
  border-radius:0 4px 4px 0;background:var(--accent-500);
}
.panel-cta{margin:18px 22px 0}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--brand-900);color:#fff;
  padding:58px 0 62px;min-height:268px;display:flex;align-items:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(11,41,44,.94) 0%,rgba(30,122,107,.76) 100%);
}
.ph-inner{position:relative;z-index:2;width:100%}
.crumb{font-size:13.5px;color:rgba(255,255,255,.68);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.42)}
.crumb .now{color:#fff}
.ph-title{font-size:clamp(28px,3.6vw,44px);color:#fff;margin:16px 0 12px;line-height:1.25;max-width:820px}
.ph-sub{font-size:16px;line-height:1.85;color:rgba(255,255,255,.82);max-width:660px}
.ph-deco{
  position:absolute;right:6%;top:50%;transform:translateY(-50%);
  display:flex;align-items:flex-end;gap:14px;z-index:1;opacity:.55;
}
.ph-deco span{display:block;width:8px;border-radius:8px;background:var(--brand-300);opacity:.42}
.ph-deco span:nth-child(1){height:64px}
.ph-deco span:nth-child(2){height:108px;opacity:.6}
.ph-deco span:nth-child(3){height:150px;opacity:.28}
.ph-deco span:nth-child(4){height:92px;opacity:.5}
.ph-deco span:nth-child(5){height:132px;opacity:.34}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-tight{padding:76px 0}
.section-head{max-width:720px;margin-bottom:40px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:1.2px;color:var(--brand-500);background:rgba(30,122,107,.08);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.sec-title{font-size:clamp(26px,3vw,34px);line-height:1.35;margin-bottom:14px}
.sec-desc{font-size:16px;color:var(--text-muted);line-height:1.85;margin:0}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.filter-chip{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;
  border-radius:999px;border:1px solid var(--border);background:var(--surface);
  color:var(--brand-700);font-size:14.5px;font-weight:600;transition:var(--ease);
}
.filter-chip i{color:var(--brand-300);font-size:13px}
.filter-chip:hover{border-color:var(--brand-300);color:var(--brand-500);box-shadow:var(--shadow-sm)}
.filter-chip.is-on{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--shadow-sm)}
.filter-chip.is-on i{color:rgba(255,255,255,.8)}

/* ---------- 服务卡片网格 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.svc-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:var(--ease);
}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.svc-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E8EFEC}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:var(--ease)}
.svc-card:hover .svc-media img{transform:scale(1.04)}
.svc-badges{position:absolute;left:12px;right:12px;bottom:12px;display:flex;flex-wrap:wrap;gap:8px}
.svc-badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;
  background:var(--accent-100);color:#9A6212;font-size:13px;font-weight:700;
  line-height:1;box-shadow:0 2px 6px rgba(11,41,44,.12);
}
.svc-badge i{color:var(--accent-500);font-size:11px}
.svc-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.svc-tag{
  align-self:flex-start;display:inline-flex;align-items:center;padding:5px 12px;
  border-radius:999px;background:rgba(111,179,166,.18);color:var(--brand-700);
  font-size:13px;font-weight:600;margin-bottom:12px;
}
.svc-title{font-size:19px;line-height:1.5;margin-bottom:10px;transition:var(--ease)}
.svc-card:hover .svc-title{color:var(--brand-500)}
.svc-desc{font-size:14.5px;line-height:1.8;color:var(--text-muted);margin:0;flex:1}
.svc-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;font-weight:600;color:var(--brand-500);
}
.svc-foot span{font-variant-numeric:tabular-nums}
.svc-foot i{transition:var(--ease)}
.svc-card:hover .svc-foot i{transform:translateX(4px)}

/* ---------- 深色数据带 ---------- */
.band{background:var(--brand-900);color:#E6EFEC;padding:96px 0;position:relative;overflow:hidden}
.band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(30,122,107,.34) 0%,rgba(11,41,44,0) 70%);
}
.band-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.band h2{color:#fff;font-size:clamp(26px,3vw,34px);line-height:1.35;margin-bottom:18px}
.band p{color:rgba(255,255,255,.72);font-size:16px;line-height:1.9;margin:0}
.band-bar{margin-top:28px;height:6px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.band-bar span{display:block;height:100%;width:78%;border-radius:999px;background:var(--grad-brand);filter:brightness(1.5) saturate(1.2)}
.band-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 34px}
.band-item{border-top:1px solid rgba(255,255,255,.16);padding-top:20px}
.band-num{
  font-size:48px;font-weight:700;line-height:1.1;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.band-num small{font-size:17px;font-weight:600;color:var(--brand-300);margin-left:6px}
.band-label{margin-top:6px;font-size:14px;color:var(--accent-500);font-weight:600}

/* ---------- 报修通道 ---------- */
.channel{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.channel-panel{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:32px 30px;box-shadow:var(--shadow-sm);
}
.channel-panel h3{font-size:20px;margin-bottom:14px}
.channel-panel p{font-size:14.5px;color:var(--text-muted);margin-bottom:22px}
.tel-box{
  display:flex;align-items:center;gap:14px;padding:18px 20px;border-radius:var(--r-md);
  background:var(--bg);border:1px solid var(--border);margin-bottom:16px;
}
.tel-icon{
  width:44px;height:44px;border-radius:50%;flex:0 0 44px;
  background:rgba(111,179,166,.22);color:var(--brand-500);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
}
.tel-meta small{display:block;font-size:13px;color:var(--text-muted)}
.tel-meta strong{font-size:21px;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:.4px}
.check-list{display:grid;gap:14px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:#C9DBD6}
.check-item i{
  color:var(--brand-500);font-size:12px;margin-top:7px;
  width:22px;height:22px;flex:0 0 22px;border-radius:50%;
  background:rgba(30,122,107,.1);display:inline-flex;align-items:center;justify-content:center;
}
.check-item h4{font-size:16.5px;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--text-muted);margin:0;line-height:1.75}

/* ---------- FAQ ---------- */
.faq{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.faq .accordion-item{border:0;border-bottom:1px solid var(--border);background:transparent}
.faq .accordion-item:last-child{border-bottom:0}
.faq .accordion-header{margin:0}
.faq .accordion-button{
  position:relative;display:flex;align-items:center;width:100%;
  min-height:64px;padding:18px 52px 18px 20px;background:transparent;border:0;
  border-radius:0;box-shadow:none;color:var(--brand-700);
  font-size:17.5px;font-weight:600;line-height:1.6;text-align:left;
  transition:var(--ease);
}
.faq .accordion-button:not(.collapsed){background:rgba(30,122,107,.05);color:var(--brand-500)}
.faq .accordion-button:focus{box-shadow:none;outline:none}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:var(--ease);
}
.faq .accordion-button:not(.collapsed)::before{opacity:1}
.faq .accordion-button::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;background-image:none;margin-left:0;
  font-size:26px;font-weight:400;line-height:1;color:var(--brand-500);
  transition:var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);color:var(--brand-700)}
.faq .accordion-body{padding:4px 52px 24px 20px;font-size:16px;line-height:1.85;color:var(--text-muted)}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad-brand);color:#fff;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--shadow-md);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta-text{position:relative;z-index:2}
.cta-text h2{color:#fff;font-size:clamp(24px,2.6vw,30px);margin-bottom:10px;line-height:1.4}
.cta-text p{color:rgba(255,255,255,.82);font-size:15.5px;margin:0;max-width:620px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#E6EFEC;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-col{position:relative;padding-left:0}
.footer-col + .footer-col{padding-left:36px}
.footer-col + .footer-col::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:rgba(255,255,255,.12);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);margin:0}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links{display:grid;gap:12px}
.footer-links a{color:rgba(255,255,255,.66);font-size:14.5px}
.footer-links a:hover{color:#fff}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{
  flex:1;height:44px;padding:0 14px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  color:#fff;font-size:14.5px;transition:var(--ease);
}
.footer-form input::placeholder{color:rgba(255,255,255,.42)}
.footer-form input:focus{outline:none;border-color:var(--brand-300);background:rgba(255,255,255,.1)}
.footer-form .btn{height:44px;padding:0 20px;border-radius:10px;font-size:14.5px}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff}
.num{font-variant-numeric:tabular-nums}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .ph-deco{right:2%;opacity:.4}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .section-tight{padding:60px 0}
  .svc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .band{padding:72px 0}
  .band-inner{grid-template-columns:1fr;gap:40px}
  .channel{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .footer-col + .footer-col{padding-left:0}
  .footer-col + .footer-col::before{display:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:46px 0 50px;min-height:236px}
  .ph-deco{display:none}
  .ph-sub{font-size:15px}
  .svc-grid{grid-template-columns:1fr;gap:20px}
  .band{padding:56px 0}
  .band-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .band-num{font-size:36px}
  .band-num small{font-size:14px}
  .cta-band{padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;text-align:left}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq .accordion-button{font-size:16.5px;padding-right:46px}
  .faq .accordion-body{padding-right:20px}
  .filter-chip{height:40px;padding:0 16px;font-size:14px}
}
@media (max-width:575.98px){
  .band-grid{grid-template-columns:1fr}
  .sec-title{font-size:25px}
  .svc-title{font-size:17.5px}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B292C;
  --brand-700:#123B3F;
  --brand-500:#1E7A6B;
  --brand-300:#6FB3A6;
  --accent-500:#E39B2E;
  --accent-100:#FBEFD8;
  --bg:#F5F7F6;
  --surface:#FFFFFF;
  --border:#DCE5E2;
  --text:#22322F;
  --text-muted:#5F716D;
  --grad-brand:linear-gradient(135deg,#123B3F 0%,#1E7A6B 100%);
  --grad-accent:linear-gradient(135deg,#E39B2E 0%,#F2C063 100%);
  --shadow-sm:0 2px 8px rgba(11,41,44,.06);
  --shadow-md:0 8px 24px rgba(11,41,44,.08);
  --shadow-lift:0 16px 40px rgba(11,41,44,.12);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --t:all .25s cubic-bezier(.2,.7,.3,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--brand-500);text-decoration:none;transition:var(--t)}
a:hover{color:var(--brand-700)}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;color:var(--brand-700);font-weight:700;line-height:1.35}
h1{line-height:1.25}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:14px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:42px}
.topbar-msg i,.topbar-tel i{color:var(--brand-300);margin-right:8px}
.topbar-tel .num,.topbar-tel{color:#fff;font-weight:600;letter-spacing:.3px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;transition:var(--t)}
.site-nav{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.site-header.is-scrolled .site-nav{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.96)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--brand-900);letter-spacing:.4px}
.brand:hover{color:var(--brand-500)}
.brand-mark{width:24px;height:24px;border-radius:7px;background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;box-shadow:var(--shadow-sm)}
.nav-desktop{display:flex;align-items:center;gap:30px}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;display:inline-block;padding:8px 6px;font-size:15px;font-weight:500;color:var(--brand-700);border-radius:6px}
.nav-link:hover{background:rgba(30,122,107,.08);color:var(--brand-700)}
.nav-link.active{color:var(--brand-700);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:6px;right:6px;bottom:0;height:3px;border-radius:2px;background:var(--grad-brand)}
.nav-cta{display:inline-flex;align-items:center;height:42px;padding:0 22px;border-radius:var(--r-pill);background:var(--grad-brand);color:#fff;font-weight:600;font-size:15px;box-shadow:var(--shadow-sm);transition:var(--t)}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);filter:brightness(1.06)}
.nav-toggle{width:44px;height:44px;border:1px solid var(--border);border-radius:var(--r-btn);background:#fff;color:var(--brand-700);font-size:18px}
.nav-toggle:hover{background:rgba(30,122,107,.08)}

/* 移动端抽屉 */
.offcanvas.nav-panel{background:var(--brand-900);color:#fff;width:300px}
.nav-panel .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.nav-panel .offcanvas-title{color:#fff;font-weight:700;font-size:17px}
.nav-panel .btn-close{filter:invert(1) grayscale(1);opacity:.75}
.panel-list{padding:10px 0}
.panel-list a{display:flex;align-items:center;height:52px;padding:0 20px;color:rgba(255,255,255,.88);font-size:16px;border-left:4px solid transparent}
.panel-list a:hover{background:rgba(255,255,255,.06);color:#fff}
.panel-list a.active{color:#fff;font-weight:600;border-left-color:var(--accent-500);background:rgba(255,255,255,.06)}
.panel-cta{margin:14px 20px 24px;display:block;text-align:center;height:46px;line-height:46px;border-radius:var(--r-btn);background:var(--grad-accent);color:#2A1C03;font-weight:700}

/* 页头横幅 */
.page-banner{
  position:relative;
  min-height:290px;
  display:flex;
  align-items:center;
  background-color:var(--brand-900);
  background-image:linear-gradient(135deg,rgba(11,41,44,.92) 0%,rgba(18,59,63,.86) 55%,rgba(30,122,107,.78) 100%),
                   url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::after{
  content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.6) 0 1px,transparent 1px 46px);
}
.banner-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 220px;gap:40px;align-items:center;padding-top:52px;padding-bottom:52px}
.breadcrumb-trail{font-size:13px;color:rgba(255,255,255,.66);margin-bottom:14px}
.breadcrumb-trail a{color:rgba(255,255,255,.8)}
.breadcrumb-trail a:hover{color:#fff}
.breadcrumb-trail .sep{margin:0 8px;color:rgba(255,255,255,.4)}
.breadcrumb-trail .current{color:rgba(255,255,255,.62)}
.page-banner h1{color:#fff;font-size:42px;max-width:720px;text-shadow:0 4px 20px rgba(0,0,0,.25)}
.banner-lead{margin:16px 0 0;color:rgba(255,255,255,.82);font-size:17px;max-width:640px}
.banner-art{justify-self:end;opacity:.85}

/* 通用板块 */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--paper{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-500);letter-spacing:1px;margin-bottom:12px}
.eyebrow::before{content:"";width:20px;height:3px;border-radius:2px;background:var(--grad-accent)}
.section-head h2{font-size:34px}
.section-head p{margin:12px 0 0;color:var(--text-muted);max-width:660px}

/* 徽章 */
.badge-data{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:var(--r-pill);background:var(--accent-100);color:#9A6412;font-size:13px;font-weight:600}
.badge-tag{display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);background:rgba(111,179,166,.18);color:var(--brand-700);font-size:13px;font-weight:600}

/* 概述与数据 */
.intro-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.intro-copy{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow-sm)}
.intro-copy p:last-child{margin-bottom:0}
.stat-stack{display:grid;gap:18px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--shadow-sm);transition:var(--t)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.stat-card .figure{font-size:42px;font-weight:700;line-height:1.1;color:var(--brand-500);font-variant-numeric:tabular-nums}
.stat-card .figure small{font-size:15px;font-weight:600;color:var(--text-muted);margin-left:6px}
.stat-card .cap{margin-top:8px;font-size:14px;color:var(--text-muted)}

/* 时间线 */
.timeline{position:relative;margin-top:6px}
.timeline::before{content:"";position:absolute;left:35px;top:28px;bottom:28px;width:3px;border-radius:3px;background:var(--grad-brand)}
.tl-row{display:grid;grid-template-columns:72px 1fr;gap:24px;padding-bottom:26px}
.tl-row:last-child{padding-bottom:0}
.tl-node{position:relative;padding-top:34px;display:flex;justify-content:center}
.tl-node .dot{width:16px;height:16px;border-radius:50%;background:#fff;border:4px solid var(--brand-500);box-shadow:0 0 0 5px rgba(30,122,107,.12)}
.step-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:28px 30px;box-shadow:var(--shadow-sm);transition:var(--t)}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(30,122,107,.35)}
.step-head{display:flex;align-items:center;gap:16px;margin-bottom:14px;flex-wrap:wrap}
.step-num{font-size:28px;font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1.4px var(--brand-300);letter-spacing:1px}
.step-head h3{font-size:22px}
.step-card p{color:var(--text-muted);margin-bottom:16px}
.step-list{display:grid;gap:10px;margin-bottom:18px}
.step-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text)}
.step-list li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--brand-300)}
.step-meta{display:flex;flex-wrap:wrap;gap:10px}

/* 交替图文 */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:38px 0;border-top:1px solid var(--border)}
.alt-row:first-child{border-top:0;padding-top:0}
.alt-row .alt-media img{width:100%;aspect-ratio:16/11;border-radius:var(--r-img);box-shadow:var(--shadow-sm)}
.alt-row.reverse .alt-media{order:2}
.alt-row.reverse .alt-body{order:1}
.alt-body h3{font-size:24px;margin-bottom:14px}
.alt-body p{color:var(--text-muted)}
.alt-body .badge-tag{margin:0 8px 10px 0}

/* 深色交付区 */
.dark-panel{background:var(--brand-900);color:#E6EFEC;position:relative;overflow:hidden}
.dark-panel::after{content:"";position:absolute;inset:0;opacity:.1;pointer-events:none;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 1px,transparent 1px 52px)}
.dark-panel .container{position:relative;z-index:2}
.dark-panel h2{color:#fff}
.dark-panel .eyebrow{color:var(--accent-500)}
.dark-panel .section-head p{color:rgba(255,255,255,.68)}
.deliver-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.deliver-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);padding:26px 28px;transition:var(--t)}
.deliver-item:hover{background:rgba(255,255,255,.09);transform:translateY(-4px)}
.deliver-item h4{color:#fff;font-size:18px;margin-bottom:10px}
.deliver-item p{color:rgba(255,255,255,.68);font-size:15px;margin:0}
.deliver-item .idx{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--grad-accent);color:#2A1C03;font-weight:700;font-size:15px;margin-bottom:14px}
.bar-progress{margin-top:34px;height:6px;border-radius:3px;background:rgba(255,255,255,.14);overflow:hidden}
.bar-progress span{display:block;height:100%;width:86%;background:var(--grad-accent);border-radius:3px}

/* FAQ */
.faq-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:12px 32px;box-shadow:var(--shadow-sm)}
.acc-item{border-bottom:1px solid var(--border)}
.acc-item:last-child{border-bottom:0}
.acc-btn{position:relative;width:100%;background:transparent;border:0;text-align:left;padding:20px 8px 20px 20px;font-size:17px;font-weight:600;color:var(--brand-700);display:flex;align-items:center;justify-content:space-between;gap:18px;transition:var(--t);min-height:64px}
.acc-btn::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;background:var(--grad-brand);opacity:0;transition:var(--t)}
.acc-btn[aria-expanded="true"]::before{opacity:1}
.acc-btn:hover{color:var(--brand-500)}
.acc-btn .plus{position:relative;flex:0 0 auto;width:22px;height:22px;transition:var(--t)}
.acc-btn .plus::before,.acc-btn .plus::after{content:"";position:absolute;background:var(--brand-300);border-radius:2px}
.acc-btn .plus::before{left:0;top:10px;width:22px;height:2px}
.acc-btn .plus::after{left:10px;top:0;width:2px;height:22px}
.acc-btn[aria-expanded="true"] .plus{transform:rotate(45deg)}
.acc-btn[aria-expanded="true"] .plus::before,.acc-btn[aria-expanded="true"] .plus::after{background:var(--accent-500)}
.acc-body{padding:0 40px 24px 20px;color:var(--text-muted);font-size:16px}
.acc-body p:last-child{margin-bottom:0}

/* CTA 横幅 */
.cta-band{background-image:var(--grad-brand);border-radius:var(--r-lg);padding:52px 56px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;color:#fff;position:relative;overflow:hidden;box-shadow:var(--shadow-md)}
.cta-band::after{content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.6) 0 1px,transparent 1px 48px)}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-band p{margin:0;color:rgba(255,255,255,.8)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 按钮 */
.btn-brand,.btn-ghost,.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-weight:600;font-size:16px;border:0;transition:var(--t);cursor:pointer}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);filter:brightness(1.07)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand-500);color:var(--brand-500)}
.btn-ghost:hover{background:rgba(30,122,107,.08);color:var(--brand-700);transform:translateY(-2px)}
.btn-accent{background:var(--grad-accent);color:#2A1C03;box-shadow:var(--shadow-sm)}
.btn-accent:hover{color:#2A1C03;transform:translateY(-2px);box-shadow:var(--shadow-md);filter:brightness(1.05)}
.on-dark.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.on-dark.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#E6EFEC;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:36px}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.12);padding-left:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px;margin-bottom:16px}
.footer-brand:hover{color:var(--brand-300)}
.footer-col p{color:rgba(255,255,255,.62);font-size:14px;line-height:1.8}
.footer-title{color:#fff;font-weight:700;font-size:16px;margin-bottom:16px}
.footer-links{display:grid;gap:12px}
.footer-links a{color:rgba(255,255,255,.68);font-size:15px}
.footer-links a:hover{color:#fff}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{flex:1;height:48px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:15px}
.footer-form input::placeholder{color:rgba(255,255,255,.45)}
.footer-form input:focus{outline:none;border-color:var(--brand-300);background:rgba(255,255,255,.1)}
.footer-form .btn-accent{height:48px;padding:0 22px}
.footer-bottom{margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.7)}

/* 覆盖 Bootstrap 默认外观 */
.btn{border-radius:var(--r-btn);font-weight:600}
.card{border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--shadow-sm)}
.badge{border-radius:var(--r-pill);font-weight:600;padding:6px 12px}
.form-control{border-radius:var(--r-btn);border:1px solid var(--border);min-height:48px}
.form-control:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,122,107,.15)}
.collapse{transition:var(--t)}

/* 响应式 */
@media (max-width:1199px){
  .page-banner h1{font-size:36px}
}
@media (max-width:991px){
  .nav-inner{height:64px}
  .topbar-inner{height:38px}
  .banner-inner{grid-template-columns:1fr;gap:24px;padding-top:40px;padding-bottom:40px}
  .banner-art{display:none}
  .intro-grid{grid-template-columns:1fr}
  .deliver-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .section{padding:76px 0}
}
@media (max-width:767px){
  .page-banner{min-height:250px}
  .page-banner h1{font-size:30px}
  .banner-lead{font-size:16px}
  .section{padding:60px 0}
  .section--tight{padding:52px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .section-head h2{font-size:27px}
  .intro-copy{padding:26px}
  .timeline::before{left:23px}
  .tl-row{grid-template-columns:48px 1fr;gap:16px;padding-bottom:20px}
  .step-card{padding:22px 20px}
  .step-head h3{font-size:20px}
  .alt-row{grid-template-columns:1fr;gap:20px;padding:26px 0}
  .alt-row.reverse .alt-media{order:1}
  .alt-row.reverse .alt-body{order:2}
  .faq-wrap{padding:8px 20px}
  .acc-btn{font-size:16px;padding:18px 6px 18px 18px}
  .acc-body{padding:0 20px 20px 18px}
  .cta-band h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-form{flex-direction:column}
  .footer-form .btn-accent{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .page-banner h1{font-size:26px}
  .stat-card .figure{font-size:34px}
}