/* roulang page: index */
:root{
  --primary:#0F4C46;
  --primary-dark:#0A332F;
  --primary-deep:#0B2E2A;
  --primary-soft:#E6F0ED;
  --primary-line:#BFD6D1;
  --accent:#F2733F;
  --accent-soft:#FFF3EC;
  --support:#2E8B84;
  --bg:#FBF8F3;
  --card:#FFFFFF;
  --text:#17211F;
  --text-2:#5A6864;
  --text-3:#8A9693;
  --border:#E3E0D8;
  --divider:rgba(23,33,31,.08);
  --r-card:18px;
  --r-inner:14px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,46,42,.06), 0 8px 24px -12px rgba(11,46,42,.16);
  --sh-2:0 16px 36px -16px rgba(11,46,42,.22);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px; --sp-7:96px;
  --t:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--support);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.4px;line-height:1.3;}
p{margin:0 0 var(--sp-2);max-width:72ch;}
ul{margin:0;padding:0;list-style:none;}
figure{margin:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);border-radius:6px;}

.container-x{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.sec{padding:96px 0;}
.sec-tight{padding:64px 0;}
.sec-alt{background:#fff;}
.sec-soft{background:var(--primary-soft);}
.sec-warm{background:var(--accent-soft);}
.sec-dark{background:var(--primary-deep);color:#F4F7F6;}
.sec-dark h2,.sec-dark h3{color:#fff;}
.sec-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.sec-head.left{margin-left:0;text-align:left;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1px;color:var(--support);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
h2.sec-title{font-size:30px;margin-bottom:14px;}
.sec-sub{color:var(--text-2);font-size:15px;margin:0 auto;max-width:64ch;}
.sec-head.left .sec-sub{margin-left:0;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.head-row .sec-head{margin:0;text-align:left;}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);font-weight:700;font-size:15px;
  border:1.5px solid transparent;cursor:pointer;transition:all var(--t);white-space:nowrap;
}
.btn-main{background:var(--primary);color:#fff;}
.btn-main:hover{background:#0c4039;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:rgba(15,76,70,.08);color:var(--primary);transform:translateY(-1px);}
.btn-soft{background:#fff;color:var(--primary);border-color:var(--border);}
.btn-soft:hover{border-color:var(--primary-line);color:var(--primary);box-shadow:var(--sh-1);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#e2652f;color:#fff;transform:translateY(-1px);box-shadow:0 16px 36px -16px rgba(242,115,63,.5);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--primary);font-size:14px;
}
.btn-link-arrow i{transition:transform var(--t);font-size:12px;}
.btn-link-arrow:hover i{transform:translateX(3px);}

/* ============ 徽章 ============ */
.badge-pill,.badge-accent,.badge-line{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:700;line-height:1;
}
.badge-pill{background:var(--primary-soft);color:var(--primary);}
.badge-accent{background:var(--accent-soft);color:#C4521F;}
.badge-line{background:transparent;border:1px solid var(--border);color:var(--text-2);font-weight:600;}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1000;background:transparent;
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{background:#fff;border-bottom:1px solid var(--border);box-shadow:0 1px 2px rgba(11,46,42,.05),0 8px 24px -20px rgba(11,46,42,.3);}
.nav-wrap{display:flex;align-items:center;gap:16px;height:76px;position:relative;}
.nav-side{display:flex;align-items:center;gap:2px;flex:1;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;gap:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:76px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--text);letter-spacing:-.2px;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:20px;transform:translateX(-50%);
  width:0;height:2px;background:var(--accent);border-radius:2px;transition:width var(--t);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:20px;}
.nav-link.active{color:var(--primary);font-weight:700;}
.nav-link.active::after{width:20px;}
.brand{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;line-height:1.1;
  text-align:center;
}
.brand-main{font-size:19px;font-weight:800;color:var(--primary);letter-spacing:-.6px;transition:font-size var(--t);}
.brand-sub{font-size:11px;letter-spacing:3px;color:var(--text-3);margin-top:3px;font-weight:600;}
.is-stuck .brand-main{font-size:17px;}
.nav-cta{height:40px;padding:0 20px;font-size:14px;border-radius:var(--r-pill);margin-left:6px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:12px;
  align-items:center;justify-content:center;color:var(--primary);font-size:17px;margin-left:auto;
}
.mobile-menu{
  display:none;background:#fff;border-top:1px solid var(--border);
  box-shadow:0 24px 40px -24px rgba(11,46,42,.28);
}
.mobile-menu.open{display:block;}
.mobile-menu ul{padding:8px 0;}
.mobile-menu li a{
  display:flex;align-items:center;height:52px;padding:0 24px;font-size:15px;font-weight:600;
  color:var(--text);border-bottom:1px solid var(--divider);justify-content:flex-start;
}
.mobile-menu li a.active{color:var(--primary);font-weight:700;background:var(--primary-soft);}
.mobile-menu .m-cta{padding:16px 24px 24px;}
.mobile-menu .m-cta .btn-main{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:56px 0 88px;
  background:
    repeating-linear-gradient(90deg,rgba(15,76,70,.05) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(0deg,rgba(15,76,70,.04) 0 1px,transparent 1px 72px),
    linear-gradient(180deg,#FBF8F3 0%,#F5F1E9 100%);
}
.hero::after{
  content:"";position:absolute;top:-120px;right:-140px;width:520px;height:520px;
  background:radial-gradient(circle at 50% 50%,rgba(46,139,132,.14),transparent 68%);
  pointer-events:none;
}
.hero-row{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;position:relative;z-index:2;}
.hero-copy{max-width:560px;}
.hero h1{font-size:44px;line-height:1.22;margin:18px 0 18px;letter-spacing:-.8px;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;color:var(--text-2);margin-bottom:28px;max-width:44ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badges span{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;
  border:1px solid var(--primary-line);border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--primary);background:rgba(255,255,255,.66);
}
.hero-badges i{color:var(--accent);font-size:12px;}
.hero-visual{position:relative;padding-bottom:24px;}
.hero-visual .shot{
  border-radius:20px;overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:16/10;background:var(--primary-soft);
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover;}
.hero-visual .slash{
  position:absolute;top:-18px;left:-18px;width:132px;height:132px;border-radius:20px;
  background:linear-gradient(135deg,rgba(15,76,70,.14),rgba(242,115,63,.18));
  transform:skewY(-6deg);z-index:-1;
}
.float-card{
  position:absolute;left:-24px;bottom:0;width:290px;background:#fff;border-radius:var(--r-inner);
  padding:18px 20px;box-shadow:var(--sh-2);border:1px solid var(--border);
}
.float-card .fc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.float-card p{font-size:13px;color:var(--text-2);margin:0 0 6px;line-height:1.6;}
.float-card strong{color:var(--text);font-weight:700;}

/* ============ 价值要点条 ============ */
.value-strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:#fff;}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);}
.value-item{padding:34px 32px;display:flex;gap:16px;}
.value-item + .value-item{border-left:1px solid var(--divider);}
.value-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:17px;
}
.value-item h3{font-size:17px;margin-bottom:6px;}
.value-item p{font-size:14px;color:var(--text-2);margin:0;}

/* ============ 优惠阶梯 ============ */
.ladder{position:relative;padding-left:0;}
.ladder-axis{position:absolute;left:50%;top:12px;bottom:12px;width:2px;background:linear-gradient(180deg,var(--primary-line),rgba(191,214,209,.2));transform:translateX(-1px);}
.ladder-item{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;margin-bottom:48px;}
.ladder-item:last-child{margin-bottom:0;}
.ladder-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:28px;
  box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.ladder-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.ladder-card h3{font-size:20px;margin-bottom:6px;}
.ladder-cond{font-size:13px;color:var(--text-2);margin-bottom:16px;padding-bottom:14px;border-bottom:1px dashed var(--border);}
.ladder-card ul li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);
  margin-bottom:10px;line-height:1.6;
}
.ladder-card ul li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;border-radius:3px;background:var(--primary-line);margin-top:8px;
}
.ladder-node{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--primary);
  z-index:2;
}
.ladder-item.lv-1 .ladder-node{border-color:var(--primary-line);}
.ladder-item.lv-2 .ladder-node{border-color:var(--support);}
.ladder-item.lv-3 .ladder-node{border-color:var(--primary);}
.ladder-item.lv-4 .ladder-node{border-color:var(--accent);}
.ladder-item:nth-child(even) .ladder-card{grid-column:2;}
.ladder-item:nth-child(even) .ladder-side{grid-column:1;grid-row:1;text-align:right;}
.ladder-side h4{font-size:34px;color:var(--primary-soft);letter-spacing:-1px;line-height:1;margin-bottom:8px;font-weight:800;}
.ladder-item.lv-3 .ladder-side h4{color:rgba(15,76,70,.16);}
.ladder-side p{font-size:14px;color:var(--text-3);margin:0;}

/* ============ 套餐对比 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:32px 26px;
  display:flex;flex-direction:column;position:relative;transition:transform var(--t),box-shadow var(--t);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.plan-card.feature{border:2px solid var(--primary);box-shadow:var(--sh-1);}
.plan-ribbon{
  position:absolute;top:-1px;left:50%;transform:translateX(-50%);
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;
  padding:5px 16px;border-radius:0 0 10px 10px;letter-spacing:.4px;
}
.plan-name{font-size:18px;font-weight:700;margin:12px 0 8px;}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-bottom:10px;}
.plan-price b{font-size:36px;font-weight:800;letter-spacing:-1.2px;color:var(--primary);}
.plan-price span{font-size:14px;color:var(--text-2);}
.plan-desc{font-size:14px;color:var(--text-2);padding-bottom:18px;border-bottom:1px solid var(--divider);margin-bottom:18px;}
.plan-list{flex:1;margin-bottom:24px;}
.plan-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);margin-bottom:11px;line-height:1.6;}
.plan-list li i{color:var(--support);font-size:12px;margin-top:6px;}
.plan-list li.off i{color:var(--text-3);}
.plan-list li.off{color:var(--text-3);}
.plan-card .btn-main,.plan-card .btn-ghost{width:100%;}

/* ============ 限时入口 ============ */
.limit-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
.limit-grid h2{font-size:30px;margin-bottom:14px;}
.limit-grid p{color:rgba(244,247,246,.74);font-size:15px;}
.countdown{display:flex;gap:12px;margin:24px 0 28px;}
.cd-box{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:12px;
  min-width:78px;padding:12px 8px;text-align:center;
}
.cd-box b{display:block;font-size:28px;font-weight:800;color:var(--accent);letter-spacing:-1px;line-height:1.1;}
.cd-box span{font-size:12px;color:rgba(244,247,246,.6);}
.limit-tag{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);background:rgba(242,115,63,.16);color:#F5A381;font-size:12px;font-weight:700;margin-bottom:16px;}
.limit-side{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);padding:28px;}
.limit-side h3{font-size:17px;margin-bottom:16px;}
.limit-side ul li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:rgba(244,247,246,.78);margin-bottom:14px;line-height:1.6;}
.limit-side ul li i{color:var(--accent);margin-top:5px;font-size:12px;}

/* ============ 反馈 ============ */
.voice-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.voice-img{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:16/10;background:var(--primary-soft);}
.voice-img img{width:100%;height:100%;object-fit:cover;}
.voice-list{display:grid;gap:16px;}
.voice-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-inner);padding:22px;box-shadow:var(--sh-1);}
.voice-card p{font-size:15px;color:var(--text-2);margin-bottom:14px;}
.voice-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);}
.voice-meta b{color:var(--text);font-weight:700;font-size:14px;}
.voice-meta .stars{color:var(--accent);font-size:12px;letter-spacing:2px;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-thumb{position:relative;aspect-ratio:16/10;background:var(--primary-soft);overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-thumb .badge-pill{position:absolute;left:14px;top:14px;background:#fff;box-shadow:var(--sh-1);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:17px;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card:hover h3{color:var(--primary);}
.news-body p{font-size:14px;color:var(--text-2);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--divider);font-size:13px;color:var(--text-3);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;background:#fff;border:1px dashed var(--border);
  border-radius:var(--r-card);
}
.empty-state i{font-size:30px;color:var(--primary-line);margin-bottom:14px;display:block;}
.empty-state p{color:var(--text-2);margin-bottom:18px;font-size:15px;max-width:none;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--divider);}
.faq-q{
  width:100%;background:none;border:none;text-align:left;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 0;font-size:17px;font-weight:700;color:var(--text);position:relative;
  transition:color var(--t);
}
.faq-q::before{
  content:"";position:absolute;left:-16px;top:22px;bottom:22px;width:3px;background:var(--accent);
  border-radius:2px;opacity:0;transition:opacity var(--t);
}
.faq-item.open .faq-q{color:var(--primary);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-q i{font-size:14px;color:var(--text-3);transition:transform var(--t);}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{font-size:15px;color:var(--text-2);padding:0 0 22px;max-width:70ch;}

/* ============ 表单 ============ */
.form-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.contact-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-inner);padding:24px;
  box-shadow:var(--sh-1);margin-top:24px;
}
.contact-card .row-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--divider);}
.contact-card .row-item:last-child{border-bottom:none;padding-bottom:0;}
.contact-card .row-item i{
  flex:0 0 38px;width:38px;height:38px;border-radius:11px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;
}
.contact-card .row-item b{display:block;font-size:15px;margin-bottom:2px;}
.contact-card .row-item span{font-size:13px;color:var(--text-2);}
.form-card{
  background:#fff;border:1px solid var(--border);border-radius:18px;padding:32px;box-shadow:var(--sh-2);
}
.form-card .fld{margin-bottom:20px;}
.form-card label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;}
.form-card label .req{color:var(--accent);}
.form-control-x{
  width:100%;height:48px;border-radius:var(--r-btn);border:1px solid var(--border);
  padding:0 14px;background:#fff;transition:border-color var(--t),box-shadow var(--t);
}
textarea.form-control-x{height:auto;padding:12px 14px;resize:vertical;}
.form-control-x::placeholder{color:var(--text-3);}
.form-control-x:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,76,70,.12);outline:none;}
.form-check-x{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);}
.form-check-x input{margin-top:4px;accent-color:var(--primary);width:16px;height:16px;}
.form-card .btn-main{width:100%;height:52px;}
.privacy-note{font-size:12px;color:var(--text-3);text-align:center;margin:12px 0 0;}

/* ============ CTA 带 ============ */
.cta-band{background:var(--primary);color:#fff;padding:36px 0;}
.cta-band .inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.cta-band h2{font-size:22px;color:#fff;margin:0;}
.cta-band p{margin:6px 0 0;font-size:14px;color:rgba(244,247,246,.78);}

/* ============ Footer ============ */
.site-footer{background:var(--primary-deep);color:rgba(244,247,246,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-main{color:#fff;font-size:19px;display:block;}
.footer-brand .brand-sub{color:rgba(244,247,246,.5);}
.footer-brand p{font-size:13px;line-height:1.8;margin:18px 0 0;color:rgba(244,247,246,.62);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(244,247,246,.68);font-size:14px;position:relative;padding-bottom:2px;}
.footer-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width var(--t);}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{width:100%;}
.footer-contact li{display:flex;gap:12px;align-items:flex-start;font-size:13px;margin-bottom:14px;color:rgba(244,247,246,.68);}
.footer-contact li i{color:var(--support);margin-top:4px;font-size:13px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(244,247,246,.5);
}
.footer-bottom a{color:rgba(244,247,246,.62);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero h1{font-size:40px;}
  .hero-row{gap:40px;}
  .float-card{width:262px;}
}
@media (max-width:991px){
  .nav-side,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{height:60px;justify-content:center;}
  .brand{position:static;transform:none;margin:0 auto;}
  .brand-main{font-size:17px;}
  .nav-toggle{position:absolute;right:16px;top:8px;}
  .sec{padding:64px 0;}
  .hero{padding:36px 0 64px;}
  .hero-row{grid-template-columns:1fr;gap:36px;}
  .hero-copy{max-width:none;}
  .hero h1{font-size:34px;}
  .hero-visual .float-card{left:16px;}
  .value-grid{grid-template-columns:1fr;}
  .value-item + .value-item{border-left:none;border-top:1px solid var(--divider);}
  .ladder-axis{left:8px;}
  .ladder-item{grid-template-columns:1fr;gap:16px;padding-left:32px;}
  .ladder-item:nth-child(even) .ladder-card{grid-column:1;}
  .ladder-item:nth-child(even) .ladder-side{grid-column:1;grid-row:auto;text-align:left;}
  .ladder-node{left:8px;top:28px;transform:translate(-50%,0);}
  .ladder-side h4{font-size:26px;}
  .plan-grid{grid-template-columns:repeat(2,1fr);}
  .limit-grid{grid-template-columns:1fr;gap:32px;}
  .voice-grid{grid-template-columns:1fr;gap:28px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .form-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .head-row{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .container-x{padding:0 16px;}
  .sec{padding:52px 0;}
  .sec-head{margin-bottom:32px;}
  h2.sec-title{font-size:22px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-visual .float-card{position:static;width:100%;margin-top:16px;left:0;}
  .hero-visual{padding-bottom:0;}
  .plan-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .news-body{padding:18px;}
  .form-card{padding:20px;}
  .cta-band .inner{flex-direction:column;align-items:flex-start;}
  .cta-band .btn-soft{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .countdown{flex-wrap:wrap;gap:8px;}
  .cd-box{min-width:64px;flex:1 1 64px;}
  .faq-q{font-size:16px;padding:18px 0;}
  .faq-q::before{left:-10px;}
}
@media (max-width:520px){
  .hero-badges span{font-size:12px;padding:0 10px;}
  .plan-card{padding:24px 18px;}
  .ladder-card{padding:20px;}
}

/* roulang page: category1 */
:root{
  --primary:#0F4C46;
  --primary-dark:#0A332F;
  --primary-light:#E6F0ED;
  --primary-line:#BFD6D1;
  --accent:#F2733F;
  --accent-soft:#FFF3EC;
  --support:#2E8B84;
  --bg:#FBF8F3;
  --card:#FFFFFF;
  --dark:#0B2E2A;
  --text:#17211F;
  --text-2:#5A6864;
  --text-3:#8A9693;
  --text-inv:#F4F7F6;
  --border:#E3E0D8;
  --divider:rgba(23,33,31,.08);
  --r-card:18px;
  --r-inner:14px;
  --r-img:16px;
  --r-btn:12px;
  --shadow-sm:0 1px 2px rgba(11,46,42,.06),0 8px 24px -12px rgba(11,46,42,.16);
  --shadow-lg:0 16px 36px -16px rgba(11,46,42,.22);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.4px;font-weight:700;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--primary);color:#fff}
:focus-visible{outline:3px solid rgba(15,76,70,.28);outline-offset:2px;border-radius:6px}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(11,46,42,.35)}
.header-inner{position:relative;display:flex;align-items:center;height:76px}
.nav-side{display:flex;align-items:center;flex:1;gap:28px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end;gap:22px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-6px;width:0;height:2px;
  background:var(--accent);transform:translateX(-50%);transition:width .2s ease;border-radius:2px;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:20px}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{width:20px}
.brand-center{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;text-align:center;line-height:1.1;
}
.brand-main{font-size:19px;font-weight:700;color:var(--primary);letter-spacing:-.3px;transition:font-size .25s ease}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:3px;margin-top:4px}
.site-header.is-stuck .brand-main{font-size:17px}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-cta:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border:1px solid var(--border);border-radius:12px;
  background:#fff;color:var(--primary);font-size:18px;align-items:center;justify-content:center;
  transition:background .2s ease;
}
.nav-toggle:hover{background:var(--primary-light)}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--divider);padding:8px 0 20px}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:flex;align-items:center;height:52px;padding:0 24px;
  font-size:15px;color:var(--text-2);border-bottom:1px solid var(--divider);
}
.mobile-panel a.active{color:var(--primary);font-weight:700;background:var(--primary-light)}
.mobile-panel .mobile-cta{
  display:flex;align-items:center;justify-content:center;margin:18px 24px 0;
  height:52px;border-radius:999px;background:var(--primary);color:#fff;font-weight:600;
  border-bottom:none;
}
.mobile-panel .mobile-cta.active{background:var(--primary);color:#fff}

/* ---------- buttons ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid var(--primary);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg);color:#fff}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  border:1.5px solid var(--primary);background:transparent;color:var(--primary);
  font-size:15px;font-weight:600;
  transition:background .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:rgba(15,76,70,.08);color:var(--primary);transform:translateY(-1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);
  font-size:15px;font-weight:600;transition:color .2s ease;
}
.btn-text i{transition:transform .2s ease}
.btn-text:hover{color:var(--support)}
.btn-text:hover i{transform:translateX(3px)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(230,240,237,.85) 0%,rgba(251,248,243,0) 72%),
    var(--bg);
  padding:56px 0 64px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(15,76,70,.05) 0 1px,transparent 1px 64px);
  opacity:.5;
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.breadcrumb-x{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb-x a{color:var(--text-3);transition:color .2s ease}
.breadcrumb-x a:hover{color:var(--support)}
.breadcrumb-x .sep{color:var(--divider)}
.breadcrumb-x .current{color:var(--text-2)}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 14px;border-radius:999px;
  background:var(--accent-soft);color:#B8511F;font-size:12px;font-weight:600;
  margin-bottom:18px;
}
.page-hero h1{font-size:44px;letter-spacing:-.6px;margin-bottom:20px}
.page-hero h1 .dot{color:var(--accent)}
.hero-lead{font-size:17px;color:var(--text-2);max-width:64ch}
.anchor-nav{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;
}
.anchor-nav a{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--primary-line);background:#fff;color:var(--primary);
  font-size:14px;font-weight:500;
  transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.anchor-nav a:hover{background:var(--primary-light);transform:translateY(-1px);border-color:var(--primary)}

/* ---------- metrics strip ---------- */
.metrics{
  background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{
  padding:30px 26px;border-right:1px solid var(--divider);
}
.metric:last-child{border-right:none}
.metric .num{
  font-size:30px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.6px;line-height:1.2;
}
.metric .num span{font-size:15px;font-weight:600;color:var(--text-3);margin-left:4px;letter-spacing:0}
.metric .label{margin-top:6px;font-size:14px;color:var(--text-2)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section.tight{padding:72px 0}
.section.cream{background:var(--bg)}
.section.white{background:#fff}
.section-head{max-width:720px;margin-bottom:52px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--support);letter-spacing:2px;margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";width:20px;height:2px;background:var(--accent);border-radius:2px;
}
.section-head h2{font-size:30px;margin-bottom:14px}
.section-head p{color:var(--text-2)}

/* ---------- flow rows ---------- */
.flow-row{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.flow-row + .flow-row{margin-top:88px}
.flow-row.reverse .flow-media{order:2}
.flow-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-sm)}
.flow-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:20px}
.flow-media::after{
  content:"";position:absolute;inset:0;border-radius:20px;
  background:linear-gradient(160deg,rgba(11,46,42,0) 55%,rgba(11,46,42,.28) 100%);
  pointer-events:none;
}
.flow-media .badge-float{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--primary);
  font-size:12px;font-weight:700;letter-spacing:.5px;
}
.flow-body .step-no{
  font-size:13px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:2px;margin-bottom:10px;
}
.flow-body h2{font-size:28px;margin-bottom:18px}
.flow-body p + p{margin-top:14px}
.flow-body p{color:var(--text-2)}
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--text)}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;
  border-radius:3px;background:var(--primary);
}
.check-list li.orange::before{background:var(--accent)}

/* ---------- point cards ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:28px 26px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary-line)}
.point-icon{
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:18px;margin-bottom:18px;
}
.point-card h3{font-size:18px;margin-bottom:10px}
.point-card p{font-size:14.5px;color:var(--text-2)}
.point-card .tag{
  display:inline-block;margin-top:16px;height:26px;line-height:26px;padding:0 12px;
  border-radius:999px;background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:600;
}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:64px;align-items:start}
.faq-aside .section-head{margin-bottom:24px}
.faq-aside p{color:var(--text-2);font-size:15px}
.faq-aside .support-card{
  margin-top:28px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-sm);
}
.faq-aside .support-card .row{
  display:flex;align-items:center;gap:12px;font-size:14.5px;color:var(--text-2);
}
.faq-aside .support-card .row + .row{margin-top:12px}
.faq-aside .support-card i{color:var(--primary);width:18px;text-align:center}
.faq-list{border-top:1px solid var(--divider)}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  padding:22px 0 22px 16px;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--accent);border-radius:2px;transition:height .22s ease;
}
.faq-q i{font-size:14px;color:var(--text-3);transition:transform .25s ease,color .2s ease}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .faq-q::before{height:22px}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 40px 22px 16px;font-size:15px;color:var(--text-2)}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--dark);color:var(--text-inv);
  padding:56px 0;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:50%;background:rgba(46,139,132,.18);filter:blur(4px);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;z-index:2}
.cta-inner h2{font-size:26px;margin-bottom:10px;color:#fff}
.cta-inner p{color:rgba(244,247,246,.75);font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-invert{background:var(--accent);border-color:var(--accent)}
.btn-invert:hover{background:#DE5F2C;border-color:#DE5F2C}
.btn-ghost-invert{border-color:rgba(244,247,246,.55);color:#F4F7F6}
.btn-ghost-invert:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:var(--text-inv);padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand-main{color:#fff;font-size:19px;display:block;letter-spacing:-.3px}
.footer-brand .brand-sub{
  display:block;font-size:11px;letter-spacing:3px;color:rgba(244,247,246,.55);margin:4px 0 16px;
}
.footer-brand p{color:rgba(244,247,246,.7);font-size:14px;line-height:1.85;max-width:34ch}
.site-footer h4{font-size:14px;color:#fff;letter-spacing:1px;margin-bottom:18px;font-weight:700}
.footer-links li + li{margin-top:10px}
.footer-links a,.footer-contact span{
  color:#B9CEC9;font-size:14px;transition:color .2s ease;
}
.footer-links a{position:relative;display:inline-block;padding-bottom:2px}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);
  transition:width .22s ease;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:#B9CEC9}
.footer-contact li + li{margin-top:12px}
.footer-contact i{color:var(--support);width:18px;text-align:center}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0 28px;font-size:12.5px;color:rgba(244,247,246,.6);
}
.footer-bottom a{color:rgba(244,247,246,.75);transition:color .2s ease}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .flow-row{gap:48px}
  .faq-wrap{grid-template-columns:300px 1fr;gap:48px}
}
@media (max-width:991px){
  .header-inner{height:60px}
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .brand-main{font-size:17px}
  .brand-sub{letter-spacing:2px}
  .page-hero{padding:40px 0 48px}
  .page-hero h1{font-size:32px}
  .hero-lead{font-size:16px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric{border-bottom:1px solid var(--divider)}
  .metric:nth-child(2n){border-right:none}
  .metric:nth-child(n+3){border-bottom:none}
  .section{padding:64px 0}
  .flow-row{grid-template-columns:1fr;gap:28px}
  .flow-row.reverse .flow-media{order:0}
  .flow-row + .flow-row{margin-top:64px}
  .point-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:36px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
}
@media (max-width:767px){
  .container-x{padding:0 16px}
  .page-hero h1{font-size:28px;letter-spacing:-.4px}
  .section{padding:52px 0}
  .section-head{margin-bottom:34px}
  .section-head h2{font-size:22px}
  .flow-body h2{font-size:22px}
  .point-grid{grid-template-columns:1fr}
  .point-card{padding:22px 20px}
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-right:none;border-bottom:1px solid var(--divider);padding:22px 4px}
  .metric:last-child{border-bottom:none}
  .cta-band{padding:44px 0}
  .cta-inner h2{font-size:21px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .anchor-nav a{height:38px;padding:0 14px;font-size:13.5px}
  .faq-q{font-size:15.5px;padding:18px 0 18px 14px}
  .faq-a p{padding-right:10px}
}

/* roulang page: article */
:root{
  --primary:#0F4C46;
  --primary-dark:#0A332F;
  --primary-deep:#0B2E2A;
  --primary-light:#E6F0ED;
  --primary-line:#BFD6D1;
  --accent:#F2733F;
  --accent-soft:#FFF3EC;
  --support:#2E8B84;
  --bg:#FBF8F3;
  --bg-warm:#F4EFE7;
  --card:#FFFFFF;
  --text:#17211F;
  --text-2:#5A6864;
  --text-3:#8A9693;
  --line:#E3E0D8;
  --divider:rgba(23,33,31,.08);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(11,46,42,.06),0 8px 24px -12px rgba(11,46,42,.16);
  --shadow-lg:0 16px 36px -16px rgba(11,46,42,.22);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--support);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.4px;line-height:1.3;color:var(--text);}
p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}
::selection{background:rgba(15,76,70,.16);}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:1040;background:var(--bg);border-bottom:1px solid transparent;transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 6px 20px -14px rgba(11,46,42,.4);}
.header-inner{position:relative;max-width:1200px;margin:0 auto;padding:0 24px;height:76px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;}
.site-header.is-scrolled .brand-main{font-size:18px;}
.site-header.is-scrolled .brand-sub{opacity:.85;}
.nav-side{display:flex;align-items:center;gap:22px;}
.nav-side.left{justify-self:start;}
.nav-side.right{justify-self:end;}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;font-size:15px;color:var(--text-2);}
.nav-link::after{content:"";position:absolute;left:0;bottom:8px;width:0;height:2px;background:var(--accent);transition:width .2s ease;}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:20px;}
.nav-link.active{color:var(--primary);font-weight:700;}
.nav-link.active::after{width:20px;}
.brand{display:flex;flex-direction:column;align-items:center;justify-self:center;line-height:1.15;text-align:center;}
.brand-main{font-size:20px;font-weight:800;letter-spacing:-.5px;color:var(--primary-dark);transition:font-size .25s ease;}
.brand-sub{font-size:12px;letter-spacing:2px;color:var(--text-3);transition:opacity .25s ease;}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:999px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;box-shadow:0 10px 22px -14px rgba(242,115,63,.9);transition:transform .22s ease,box-shadow .22s ease,background .22s ease;}
.nav-cta:hover{background:#e0652f;color:#fff;transform:translateY(-2px);box-shadow:0 16px 28px -14px rgba(242,115,63,.95);}
.nav-cta:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,115,63,.3);}
.hamburger{display:none;position:absolute;right:16px;top:50%;transform:translateY(-50%);width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;}
.hamburger span{display:block;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-menu{display:none;position:fixed;left:0;right:0;top:60px;bottom:0;background:#fff;z-index:1030;padding:8px 0 24px;overflow-y:auto;}
.mobile-menu.open{display:block;}
.mobile-menu a{display:flex;align-items:center;height:52px;padding:0 20px;font-size:15px;color:var(--text);border-bottom:1px solid var(--divider);}
.mobile-menu a.active{color:var(--primary);font-weight:700;box-shadow:inset 3px 0 0 var(--accent);}
.mobile-menu .mobile-cta{margin:20px;height:52px;justify-content:center;border-radius:12px;background:var(--primary);color:#fff;font-weight:600;border-bottom:none;}
body.menu-open{overflow:hidden;}

/* ============ 按钮 ============ */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;}
.btn-solid{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-solid:hover{background:#0c3e39;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-solid:active{transform:translateY(0);}
.btn-solid:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);}
.btn-ghost{background:transparent;color:var(--primary);border:1.5px solid var(--primary);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{background:var(--accent-soft);color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 18px 34px -18px rgba(0,0,0,.55);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;min-height:44px;}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(3px);}

/* ============ 徽章 / 标签 ============ */
.badge-x{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.2px;}
.badge-cat{background:var(--primary-light);color:var(--primary);}
.badge-accent{background:var(--accent-soft);color:#C75322;}

/* ============ 文章头部 ============ */
.article-hero{position:relative;padding:26px 0 34px;background:linear-gradient(180deg,#FBF8F3 0%,#F4EFE7 100%);border-bottom:1px solid var(--line);overflow:hidden;}
.article-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(15,76,70,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(15,76,70,.05) 1px,transparent 1px);background-size:72px 72px;pointer-events:none;}
.article-hero .container-x{position:relative;z-index:1;}
.breadcrumb-x{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;min-width:0;}
.breadcrumb-x a{color:var(--text-2);white-space:nowrap;}
.breadcrumb-x a:hover{color:var(--primary);}
.breadcrumb-x .sep{color:var(--primary-line);}
.breadcrumb-x .current{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.article-title{font-size:34px;line-height:1.35;letter-spacing:-.6px;max-width:900px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:13px;color:var(--text-2);}
.meta-row .sep{width:1px;height:14px;background:var(--divider);display:inline-block;}
.meta-row i{color:var(--support);margin-right:5px;font-size:13px;}
.head-rule{height:1px;background:var(--divider);margin-top:22px;}

/* ============ 主体布局 ============ */
.article-main{padding:48px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
.article-primary{min-width:0;}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:36px 40px;}
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.85;color:#22302D;overflow-wrap:break-word;word-break:break-word;}
.article-body>*+*{margin-top:18px;}
.article-body h2{font-size:22px;line-height:1.45;position:relative;padding-left:16px;margin-top:38px;margin-bottom:4px;}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--accent);}
.article-body h3{font-size:18px;margin-top:28px;margin-bottom:2px;}
.article-body h2,.article-body h3{scroll-margin-top:110px;}
.article-body p{margin:0;}
.article-body a{color:var(--support);border-bottom:1px solid rgba(46,139,132,.4);}
.article-body a:hover{color:var(--primary);border-bottom-color:var(--primary);}
.article-body strong{font-weight:700;color:var(--primary-dark);}
.article-body ul,.article-body ol{padding-left:0;list-style:none;display:flex;flex-direction:column;gap:10px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;color:#22302D;}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--primary);}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{content:counter(item);position:absolute;left:0;top:.45em;width:18px;height:18px;border-radius:5px;background:var(--primary-light);color:var(--primary);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.article-body blockquote{margin:0;padding:16px 20px;border-left:3px solid var(--primary);background:rgba(15,76,70,.06);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-2);font-size:16px;}
.article-body img{border-radius:var(--radius-md);margin:0 auto;}
.article-body figure{margin:0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;}
.article-body th{background:rgba(15,76,70,.08);color:var(--primary-dark);font-weight:700;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tr:last-child td{border-bottom:none;}
.article-body hr{border:none;height:1px;background:var(--divider);}
.article-body code{background:var(--primary-light);color:var(--primary-dark);padding:2px 6px;border-radius:6px;font-size:15px;}
.empty-state{text-align:center;padding:40px 0;}
.empty-state i{font-size:38px;color:var(--primary-line);}
.empty-state h2{font-size:22px;margin-top:16px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-top:8px;}
.empty-state .btn-x{margin-top:22px;}

/* ============ 文末区 ============ */
.post-foot{max-width:780px;margin:28px auto 0;}
.post-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-label{font-size:13px;color:var(--text-3);}
.tag-x{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text-2);}
.pager-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px;}
.pager-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:18px 20px;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary-line);color:inherit;}
.pager-card .pager-label{font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:6px;}
.pager-card h3{font-size:16px;margin-top:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.pager-card:hover h3{color:var(--primary);}
.pager-card p{font-size:13px;color:var(--text-2);margin-top:4px;}
.post-back{display:flex;justify-content:center;margin-top:22px;}

/* ============ 相关推荐 ============ */
.related{margin-top:56px;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.related-head h2{font-size:26px;}
.related-head p{font-size:14px;color:var(--text-2);margin-top:6px;}
.card-post{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);height:100%;transition:transform .22s ease,box-shadow .22s ease;}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary-line);color:inherit;}
.card-post .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--primary-light);}
.card-post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card-post:hover .thumb img{transform:scale(1.04);}
.card-post .body{padding:18px 20px 20px;}
.card-post h3{font-size:17px;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-post:hover h3{color:var(--primary);}
.card-post .meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-top:12px;}

/* ============ 侧栏 ============ */
.article-aside{display:none;}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:22px;margin-bottom:20px;}
.aside-card h3{font-size:16px;display:flex;align-items:center;gap:8px;}
.aside-card h3 i{color:var(--accent);font-size:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;margin-top:14px;}
.toc-link{font-size:14px;color:var(--text-2);padding:7px 10px;border-radius:8px;border-left:2px solid transparent;line-height:1.5;}
.toc-link:hover{background:var(--primary-light);color:var(--primary);border-left-color:var(--accent);}
.toc-link.lv3{padding-left:22px;font-size:13px;color:var(--text-3);}
.aside-links{display:flex;flex-direction:column;gap:2px;margin-top:12px;}
.aside-links a{font-size:14px;color:var(--text-2);padding:9px 10px;border-radius:8px;display:flex;align-items:center;justify-content:space-between;gap:8px;}
.aside-links a:hover{background:var(--primary-light);color:var(--primary);}
.aside-links a i{color:var(--primary-line);font-size:12px;}
.aside-contact{background:var(--primary-deep);border-color:var(--primary-deep);color:#F4F7F6;}
.aside-contact h3{color:#fff;}
.aside-contact p{font-size:14px;color:rgba(244,247,246,.78);margin-top:10px;line-height:1.7;}
.aside-contact .line{display:flex;align-items:center;gap:10px;font-size:14px;color:#fff;margin-top:12px;font-variant-numeric:tabular-nums;}
.aside-contact .line i{color:var(--accent);}
.aside-contact .btn-x{margin-top:18px;width:100%;}

/* ============ CTA 带 ============ */
.cta-band{background:var(--primary-dark);padding:52px 0;}
.cta-band .inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-band h2{font-size:26px;color:#fff;}
.cta-band p{font-size:15px;color:rgba(244,247,246,.78);margin-top:8px;max-width:640px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:#F4F7F6;padding:64px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand-main{display:block;font-size:20px;font-weight:800;color:#fff;letter-spacing:-.4px;}
.footer-brand .brand-sub{display:block;font-size:12px;letter-spacing:2px;color:rgba(244,247,246,.6);margin-top:4px;}
.footer-brand p{font-size:14px;color:rgba(244,247,246,.72);margin-top:14px;line-height:1.8;max-width:320px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:0;}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer-links a{position:relative;font-size:14px;color:#B9CCC8;}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:#fff;transition:width .2s ease;}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{width:100%;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:#B9CCC8;font-variant-numeric:tabular-nums;}
.footer-contact i{color:var(--accent);width:16px;text-align:center;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:rgba(244,247,246,.66);}
.footer-bottom a{color:rgba(244,247,246,.8);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:48px;}
  .article-aside{display:block;}
}
@media (max-width:1199.98px){
  .article-card{padding:30px 32px;}
}
@media (max-width:991.98px){
  .header-inner{height:60px;grid-template-columns:1fr;justify-items:center;padding:0 16px;}
  .nav-side{display:none;}
  .hamburger{display:flex;}
  .brand-main{font-size:18px;}
  .mobile-menu{top:60px;}
  .article-title{font-size:28px;}
  .article-hero{padding:20px 0 26px;}
  .article-main{padding:32px 0 64px;}
  .related-head h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  body{font-size:15px;}
  .container-x{padding:0 16px;}
  .article-card{padding:22px 18px;border-radius:var(--radius-md);}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:19px;margin-top:30px;}
  .article-body h3{font-size:17px;}
  .article-title{font-size:24px;}
  .pager-grid{grid-template-columns:1fr;}
  .article-main{padding:26px 0 52px;}
  .related{margin-top:44px;}
  .cta-band{padding:40px 0;}
  .cta-band h2{font-size:21px;}
  .cta-band .btn-x{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category2 */
:root{
  --primary:#0F4C46;
  --primary-dark:#0A332F;
  --primary-deep:#0B2E2A;
  --primary-soft:#E6F0ED;
  --primary-line:#BFD6D1;
  --accent:#F2733F;
  --accent-soft:#FFF3EC;
  --support:#2E8B84;
  --bg:#FBF8F3;
  --card:#FFFFFF;
  --text:#17211F;
  --text-2:#5A6864;
  --text-3:#8A9693;
  --line:#E3E0D8;
  --divider:rgba(23,33,31,.08);
  --r-card:18px;
  --r-inner:14px;
  --r-img:16px;
  --r-btn:12px;
  --sh:0 1px 2px rgba(11,46,42,.06),0 8px 24px -12px rgba(11,46,42,.16);
  --sh-hover:0 16px 36px -16px rgba(11,46,42,.22);
  --t:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.4px;color:var(--text);}
p{margin:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--support);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;}
.row{--bs-gutter-x:24px;}
section{position:relative;}
.sec{padding:88px 0;}
.sec-tight{padding:64px 0;}
.bg-soft{background:var(--primary-soft);}
.bg-warm{background:var(--accent-soft);}
.bg-white{background:#fff;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:transparent;
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(11,46,42,.06),0 8px 24px -18px rgba(11,46,42,.24);
}
.header-inner{
  position:relative;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.nav-side{display:flex;align-items:center;gap:28px;flex:1;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:2px;background:var(--accent);
  transition:width var(--t);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:20px;}
.nav-link.active{color:var(--primary);font-weight:700;}
.nav-link.active::after{width:20px;}
.brand{
  position:absolute;left:50%;top:50%;
  transform:translate(-50%,-50%);
  text-align:center;
  display:flex;flex-direction:column;
  line-height:1.15;
}
.brand-main{
  font-size:20px;font-weight:800;color:var(--primary);
  letter-spacing:-.6px;transition:font-size var(--t);
}
.brand-sub{
  font-size:11px;color:var(--text-3);letter-spacing:2px;margin-top:4px;
}
.site-header.scrolled .brand-main{font-size:18px;}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
  cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;transition:var(--t);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-menu{
  display:none;
  position:absolute;left:0;right:0;top:100%;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh);
  padding:8px 0 20px;
}
.mobile-menu.open{display:block;}
.mobile-menu a.m-link{
  display:flex;align-items:center;
  height:52px;padding:0 24px;
  font-size:16px;color:var(--text);
  border-bottom:1px solid var(--divider);
}
.mobile-menu a.m-link.active{color:var(--primary);font-weight:700;}
.mobile-menu .m-cta-wrap{padding:16px 24px 0;}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:all var(--t);
  white-space:nowrap;
}
.btn-x.primary{background:var(--primary);color:#fff;}
.btn-x.primary:hover{background:#0d423c;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-hover);}
.btn-x.primary:active{transform:translateY(0);}
.btn-x.ghost{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-x.ghost:hover{background:var(--primary-soft);color:var(--primary);}
.btn-x.accent{background:var(--accent);color:#fff;}
.btn-x.accent:hover{background:#e0642f;color:#fff;transform:translateY(-1px);box-shadow:0 16px 36px -16px rgba(242,115,63,.5);}
.btn-x.light{background:#fff;color:var(--primary);}
.btn-x.light:hover{background:var(--primary-soft);color:var(--primary-dark);}
.btn-x:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);}
.btn-x.wide{width:100%;}
.link-x{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-x i{transition:transform var(--t);}
.link-x:hover i{transform:translateX(3px);}

/* ---------- badge ---------- */
.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border-radius:999px;
  font-size:12px;font-weight:600;
  background:var(--primary-soft);color:var(--primary);
}
.badge-x.accent{background:var(--accent-soft);color:#C24E1E;}

/* ---------- page hero ---------- */
.page-hero{
  padding:36px 0 56px;
  background:linear-gradient(180deg,#F5F1E9 0%,var(--bg) 100%);
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(15,76,70,.05) 0 1px,transparent 1px 56px);
  pointer-events:none;
}
.crumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
  position:relative;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);}
.crumb .current{color:var(--primary);font-weight:600;}
.page-hero h1{
  font-size:44px;line-height:1.2;letter-spacing:-.6px;
  margin-bottom:18px;position:relative;
}
.page-hero .lede{
  max-width:72ch;font-size:17px;color:var(--text-2);line-height:1.8;
  position:relative;
}
.anchor-nav{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:32px;position:relative;
}
.anchor-nav a{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
  transition:all var(--t);
}
.anchor-nav a i{font-size:12px;color:var(--accent);}
.anchor-nav a:hover{border-color:var(--primary-line);color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh);}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  overflow:hidden;
}
.stat-item{
  padding:26px 24px;
  border-right:1px solid var(--divider);
}
.stat-item:last-child{border-right:0;}
.stat-item .num{
  font-size:30px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.6px;
  display:flex;align-items:baseline;gap:4px;
}
.stat-item .num em{font-style:normal;font-size:14px;font-weight:600;color:var(--text-3);}
.stat-item .lab{font-size:14px;color:var(--text-2);margin-top:6px;}

/* ---------- section head ---------- */
.sec-head{margin-bottom:40px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:1px;margin-bottom:12px;
}
.sec-head .eyebrow::before{content:"";width:20px;height:2px;background:var(--accent);border-radius:2px;}
.sec-head h2{font-size:30px;line-height:1.3;letter-spacing:-.5px;}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:72ch;}

/* ---------- card matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.m-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  height:100%;
}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--primary-line);}
.m-card .m-icon{
  width:44px;height:44px;border-radius:14px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:16px;
}
.m-card h3{font-size:18px;margin-bottom:10px;letter-spacing:-.3px;}
.m-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.m-card .m-tag{
  display:inline-block;margin-top:14px;
  font-size:12px;font-weight:600;color:var(--support);
  background:rgba(46,139,132,.1);
  padding:4px 10px;border-radius:999px;
}

/* ---------- side rail ---------- */
.rail{display:flex;flex-direction:column;gap:20px;position:sticky;top:100px;}
.rail-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh);
}
.rail-card h3{
  font-size:16px;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.rail-card h3 i{color:var(--accent);font-size:14px;}
.rail-list li + li{margin-top:4px;}
.rail-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 0;font-size:14px;color:var(--text-2);
  border-bottom:1px dashed var(--divider);
  transition:color var(--t),padding-left var(--t);
}
.rail-list li:last-child a{border-bottom:0;}
.rail-list a::before{
  content:"";width:6px;height:6px;border-radius:2px;
  background:var(--primary-line);flex:none;transition:background var(--t);
}
.rail-list a:hover{color:var(--primary);padding-left:4px;}
.rail-list a:hover::before{background:var(--accent);}
.rail-contact li{
  display:flex;align-items:flex-start;gap:12px;
  font-size:14px;color:var(--text-2);
  padding:9px 0;
}
.rail-contact li i{color:var(--primary);margin-top:4px;width:16px;text-align:center;}
.rail-contact li strong{color:var(--text);font-variant-numeric:tabular-nums;}
.rail-note{
  background:var(--accent-soft);
  border:1px solid rgba(242,115,63,.22);
  border-radius:var(--r-inner);
  padding:16px;
  font-size:13px;color:#8A4A26;line-height:1.7;
}
.rail-note strong{display:block;color:#C24E1E;margin-bottom:6px;font-size:13px;}

/* ---------- checklist block ---------- */
.check-media{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh);
  height:100%;
  min-height:320px;
}
.check-media img{width:100%;height:100%;object-fit:cover;}
.step-list{counter-reset:step;}
.step-item{
  display:flex;gap:18px;
  padding:20px 0;
  border-bottom:1px solid var(--divider);
}
.step-item:last-child{border-bottom:0;padding-bottom:0;}
.step-item:first-child{padding-top:0;}
.step-no{
  flex:none;
  width:42px;height:42px;border-radius:12px;
  background:var(--primary);
  color:#fff;font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:17px;margin-bottom:6px;}
.step-item p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ---------- faq ---------- */
.faq-acc .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--divider);
}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--divider);}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{
  position:relative;
  background:transparent;
  border-radius:0;
  box-shadow:none;
  padding:22px 46px 22px 18px;
  font-size:18px;
  font-weight:600;
  color:var(--text);
  letter-spacing:-.2px;
}
.faq-acc .accordion-button::before{
  content:"";
  position:absolute;left:0;top:22px;bottom:22px;width:3px;
  background:var(--accent);border-radius:2px;
  opacity:0;transition:opacity var(--t);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--primary);
  background:transparent;
  box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-acc .accordion-button:focus-visible{outline:2px solid rgba(15,76,70,.28);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  content:"";
  position:absolute;right:12px;top:50%;
  width:9px;height:9px;
  margin:0;
  background-image:none;
  border-right:2px solid var(--text-3);
  border-bottom:2px solid var(--text-3);
  transform:translateY(-70%) rotate(45deg);
  transition:transform var(--t),border-color var(--t);
}
.faq-acc .accordion-button:not(.collapsed)::after{
  border-color:var(--accent);
  transform:translateY(-30%) rotate(-135deg);
}
.faq-acc .accordion-body{
  padding:0 46px 24px 18px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--primary-deep);
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-80px;top:-80px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,139,132,.25),transparent 70%);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;z-index:1;
  flex-wrap:wrap;
}
.cta-inner h2{color:#F4F7F6;font-size:28px;letter-spacing:-.5px;}
.cta-inner p{color:rgba(244,247,246,.72);font-size:15px;margin-top:10px;max-width:60ch;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--primary-deep);
  color:rgba(244,247,246,.72);
  padding:72px 0 28px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand-main{
  font-size:20px;font-weight:800;color:#F4F7F6;
  letter-spacing:-.5px;display:block;
}
.footer-brand .brand-sub{
  font-size:11px;letter-spacing:2px;color:var(--support);
  display:block;margin:6px 0 16px;
}
.footer-brand p{font-size:13px;line-height:1.85;color:rgba(244,247,246,.62);max-width:34ch;}
.site-footer h4{
  font-size:15px;color:#F4F7F6;margin-bottom:18px;letter-spacing:-.2px;
}
.footer-links li + li{margin-top:10px;}
.footer-links a{
  color:rgba(244,247,246,.66);
  position:relative;padding-bottom:2px;
  font-size:14px;
}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:0;
  width:0;height:2px;background:var(--accent);
  transition:width var(--t);
}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{width:100%;}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:rgba(244,247,246,.66);
  padding:6px 0;
}
.footer-contact li i{color:var(--support);margin-top:5px;width:16px;text-align:center;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px 28px;
  justify-content:space-between;
  font-size:12.5px;
  color:rgba(244,247,246,.5);
}
.footer-bottom a{color:rgba(244,247,246,.6);}
.footer-bottom a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px;}
  .rail{position:static;}
  .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .nav-side{display:none;}
  .nav-cta{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{height:60px;}
  .brand-main{font-size:18px;}
  .site-header.scrolled .brand-main{font-size:17px;}
  .page-hero{padding:26px 0 44px;}
  .page-hero h1{font-size:32px;}
  .page-hero .lede{font-size:15.5px;}
  .sec{padding:64px 0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--divider);}
  .cta-inner h2{font-size:24px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px;}
}
@media (max-width:767.98px){
  .container-x{padding:0 16px;}
  .row{--bs-gutter-x:16px;}
  body{font-size:15px;}
  .page-hero h1{font-size:30px;letter-spacing:-.4px;}
  .matrix-grid{grid-template-columns:1fr;}
  .sec{padding:52px 0;}
  .sec-head h2{font-size:22px;}
  .sec-head{margin-bottom:28px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0!important;border-bottom:1px solid var(--divider);}
  .stat-item:last-child{border-bottom:0;}
  .m-card{padding:20px;}
  .btn-x{width:100%;}
  .anchor-nav a{width:100%;justify-content:flex-start;}
  .faq-acc .accordion-button{font-size:16px;padding:18px 40px 18px 16px;}
  .faq-acc .accordion-body{padding:0 34px 20px 16px;font-size:14.5px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-brand p{max-width:none;}
}

/* roulang page: category3 */
:root{
  --primary:#0F4C46;
  --primary-dark:#0A332F;
  --primary-deep:#0B2E2A;
  --primary-soft:#E6F0ED;
  --primary-line:#BFD6D1;
  --accent:#F2733F;
  --accent-soft:#FFF3EC;
  --support:#2E8B84;
  --bg:#FBF8F3;
  --card:#FFFFFF;
  --text:#17211F;
  --text-2:#5A6864;
  --text-3:#8A9693;
  --text-inv:#F4F7F6;
  --border:#E3E0D8;
  --divider:rgba(23,33,31,.08);
  --radius:18px;
  --radius-sm:14px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow:0 1px 2px rgba(11,46,42,.06), 0 8px 24px -12px rgba(11,46,42,.16);
  --shadow-hover:0 16px 36px -16px rgba(11,46,42,.22);
  --ease:.22s ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--support);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.4px;color:var(--text);}
p{margin:0 0 16px;max-width:72ch;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
.num{font-variant-numeric:tabular-nums;}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#fff;height:76px;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--border);box-shadow:0 1px 2px rgba(11,46,42,.06);}
.nav-inner{position:relative;display:flex;align-items:center;height:76px;}
.nav-side{display:flex;align-items:center;gap:28px;flex:1;}
.nav-side.right{justify-content:flex-end;gap:22px;}
.brand{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;line-height:1.15;
  white-space:nowrap;transition:transform var(--ease);
}
.brand-main{font-size:20px;font-weight:800;color:var(--primary-dark);letter-spacing:-.5px;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:3px;}
.site-header.is-stuck .brand{transform:translateX(-50%) scale(.9);}
.nav-link{position:relative;display:inline-flex;align-items:center;height:76px;font-size:15px;font-weight:500;color:var(--text-2);}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:20px;width:20px;height:2px;background:var(--accent);
  border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.nav-cta{height:40px;padding:0 20px;font-size:14px;border-radius:999px;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:10px;margin-left:auto;
  background:none;border:0;cursor:pointer;border-radius:10px;
}
.nav-toggle span{display:block;height:2px;width:22px;background:var(--primary-dark);border-radius:2px;transition:var(--ease);}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);}
.mobile-menu{display:none;background:#fff;border-top:1px solid var(--border);padding:4px 0 20px;}
.mobile-menu.open{display:block;}
.mobile-menu a{
  display:flex;align-items:center;min-height:52px;padding:0 24px;
  font-size:16px;color:var(--text);border-bottom:1px solid var(--divider);
}
.mobile-menu a.active{color:var(--primary);font-weight:700;}
.mobile-menu .mm-cta{margin:18px 24px 0;border-bottom:0;}

/* ---------- buttons ---------- */
.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:1.5px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn i{font-size:14px;}
.btn-main{background:var(--primary);color:#fff;}
.btn-main:hover{background:#0c3f39;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:rgba(15,76,70,.08);color:var(--primary);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#e0622d;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{background:#f1efe9;color:var(--primary-dark);transform:translateY(-1px);}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);}

/* ---------- badges & crumbs ---------- */
.badge-x{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-accent{background:var(--accent-soft);color:#C4552A;}
.badge-line{background:#fff;border:1px solid var(--border);color:var(--text-2);font-weight:500;}
.crumb{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:2px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{margin:0 8px;color:#C9C6BD;}

/* ---------- hero ---------- */
.cat-hero{position:relative;background:#fff;padding:36px 0 64px;overflow:hidden;}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(15,76,70,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(15,76,70,.05) 1px,transparent 1px);
  background-size:88px 88px;
}
.cat-hero .container-x{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;margin-top:26px;}
.hero-title{font-size:44px;line-height:1.25;letter-spacing:-.6px;margin-bottom:18px;}
.hero-title .tl-accent{color:var(--primary);}
.hero-lead{font-size:17px;color:var(--text-2);max-width:56ch;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:20px;box-shadow:var(--shadow);
}
.hero-media .float-card{
  position:absolute;left:-24px;bottom:-24px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:16px 18px;box-shadow:var(--shadow);max-width:250px;
}
.float-card strong{display:block;font-size:15px;color:var(--primary-dark);margin-bottom:6px;}
.float-card span{font-size:13px;color:var(--text-2);line-height:1.6;display:block;}
.anchor-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.anchor-nav a{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--border);background:#fff;font-size:14px;color:var(--text-2);
  transition:all var(--ease);
}
.anchor-nav a:hover{border-color:var(--primary-line);background:var(--primary-soft);color:var(--primary);}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#fff;}
.section-dark{background:var(--primary-deep);color:var(--text-inv);}
.section-dark h2,.section-dark h3{color:#fff;}
.section-dark p{color:rgba(244,247,246,.78);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:14px;}
.section-head .sub{font-size:16px;color:var(--text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:2px;color:var(--accent);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}

/* ---------- timeline ---------- */
.timeline{list-style:none;position:relative;padding:0;margin:0;}
.timeline::before{
  content:"";position:absolute;left:31px;top:20px;bottom:34px;width:2px;
  background:linear-gradient(180deg,var(--primary-line),rgba(191,214,209,.15));border-radius:2px;
}
.tl-item{position:relative;display:flex;gap:26px;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:relative;z-index:1;flex:0 0 64px;width:64px;height:64px;border-radius:20px;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;
}
.tl-body{
  flex:1;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 26px;box-shadow:var(--shadow);transition:box-shadow var(--ease),transform var(--ease);
}
.tl-body:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.tl-body h3{font-size:20px;margin-bottom:10px;}
.tl-body p{font-size:15px;color:var(--text-2);}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ---------- lists ---------- */
.points{list-style:none;margin-top:14px;}
.points li{position:relative;padding-left:18px;font-size:14.5px;color:var(--text-2);margin-bottom:9px;}
.points li:last-child{margin-bottom:0;}
.points li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.points.accent li::before{background:var(--accent);}

/* ---------- ladder grid ---------- */
.ladder-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.ladder-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;transition:transform var(--ease),box-shadow var(--ease);
}
.ladder-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.ladder-card h3{font-size:19px;margin-bottom:8px;}
.ladder-card .step-tag{font-size:12px;font-weight:700;color:var(--support);letter-spacing:1px;margin-bottom:12px;}
.ladder-card .cond{
  font-size:14px;color:var(--text-2);background:var(--primary-soft);border-radius:12px;
  padding:10px 14px;margin-bottom:16px;line-height:1.6;
}
.ladder-card .points{margin-top:auto;}
.ladder-card.recommend{border:2px solid var(--primary);position:relative;overflow:hidden;}
.ladder-card.recommend::before{
  content:"当期主推";position:absolute;top:0;right:0;background:var(--accent);color:#fff;
  font-size:12px;font-weight:600;padding:4px 14px;border-bottom-left-radius:12px;
}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;}
.split img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow);}
.split h2{font-size:28px;line-height:1.32;margin-bottom:14px;}
.split p{color:var(--text-2);font-size:15.5px;}
.info-rows{margin-top:20px;display:grid;gap:12px;}
.info-row{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:16px 18px;
}
.info-row i{color:var(--accent);font-size:16px;margin-top:4px;}
.info-row strong{display:block;font-size:15px;color:var(--text);margin-bottom:2px;}
.info-row span{font-size:14px;color:var(--text-2);line-height:1.65;}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--divider);max-width:900px;}
.faq-item{border-bottom:1px solid var(--divider);}
.faq-q{
  position:relative;width:100%;background:none;border:0;text-align:left;cursor:pointer;
  padding:22px 48px 22px 16px;font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--ease);
}
.faq-q:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);border-radius:8px;}
.faq-q .chev{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:14px;transition:transform var(--ease),color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-item.open .faq-q{color:var(--primary);}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;background:var(--accent);border-radius:2px;
}
.faq-item.open .chev{transform:translateY(-50%) rotate(180deg);color:var(--accent);}
.faq-a{display:none;padding:0 48px 24px 16px;font-size:15px;color:var(--text-2);line-height:1.8;}
.faq-item.open .faq-a{display:block;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;border-radius:20px;overflow:hidden;padding:52px 56px;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,46,42,.9) 0%,rgba(11,46,42,.62) 100%);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.32;margin-bottom:10px;}
.cta-inner p{color:rgba(244,247,246,.8);font-size:15.5px;max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-deep);color:var(--text-inv);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-main{display:block;font-size:20px;font-weight:800;color:#fff;letter-spacing:-.4px;}
.footer-brand .brand-sub{display:block;font-size:11px;letter-spacing:3px;color:rgba(244,247,246,.55);margin-bottom:16px;}
.footer-brand p{font-size:14px;color:rgba(244,247,246,.72);line-height:1.8;max-width:34ch;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:0;}
.footer-links,.footer-contact{list-style:none;}
.footer-links li,.footer-contact li{margin-bottom:12px;}
.footer-links a{
  position:relative;font-size:14px;color:#A9C4BF;display:inline-block;padding-bottom:2px;
}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:#fff;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{transform:scaleX(1);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(244,247,246,.78);}
.footer-contact i{color:var(--accent);font-size:14px;margin-top:5px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-size:12.5px;color:rgba(244,247,246,.6);
}
.footer-bottom a{color:rgba(244,247,246,.72);}
.footer-bottom a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .ladder-grid{grid-template-columns:repeat(2,1fr);}
  .hero-title{font-size:38px;}
}
@media (max-width:991.98px){
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .site-header,.nav-inner{height:60px;}
  .nav-link{height:60px;}
  .nav-link::after{bottom:14px;}
  .brand-main{font-size:17px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-title{font-size:32px;}
  .hero-media{margin-top:8px;}
  .hero-media .float-card{left:0;bottom:-20px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .section{padding:64px 0;}
  .section-head h2{font-size:24px;}
  .cta-band{padding:40px 32px;}
  .cta-inner h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container-x{padding:0 16px;}
  body{font-size:15px;}
  .hero-title{font-size:28px;}
  .hero-lead{font-size:15.5px;}
  .hero-tags .badge-x{height:auto;padding:6px 12px;}
  .ladder-grid{grid-template-columns:1fr;}
  .timeline::before{left:23px;}
  .tl-item{gap:16px;}
  .tl-num{flex:0 0 48px;width:48px;height:48px;border-radius:16px;font-size:17px;}
  .tl-body{padding:20px 18px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:22px;}
  .split h2{font-size:22px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .anchor-nav a{flex:1 1 auto;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .faq-q{font-size:16px;padding-right:42px;}
}

/* roulang page: category4 */
:root{
  --primary:#0F4C46;
  --primary-dark:#0A332F;
  --primary-deep:#0B2E2A;
  --primary-light:#E6F0ED;
  --primary-line:#BFD6D1;
  --accent:#F2733F;
  --accent-soft:#FFF3EC;
  --support:#2E8B84;
  --bg:#FBF8F3;
  --card:#FFFFFF;
  --text:#17211F;
  --text-2:#5A6864;
  --text-3:#8A9693;
  --inv:#F4F7F6;
  --border:#E3E0D8;
  --divider:rgba(23,33,31,.08);
  --r-card:18px;
  --r-sm:14px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,46,42,.06),0 8px 24px -12px rgba(11,46,42,.16);
  --sh-2:0 16px 36px -16px rgba(11,46,42,.22);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
a{color:var(--primary);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--support)}
img{max-width:100%;display:block}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.4px;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1.5px solid transparent;cursor:pointer;
  transition:all .22s ease;white-space:nowrap;
}
.btn-x i{font-size:14px}
.btn-solid{background:var(--primary);color:#fff}
.btn-solid:hover{background:#0c3f3a;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-solid:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(15,76,70,.08);color:var(--primary);transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--primary-dark)}
.btn-white:hover{background:#f3f6f5;color:var(--primary-dark);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#e06534;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-x:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(15,76,70,.28);
}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--primary)}
.link-more i{transition:transform .22s ease;font-size:13px}
.link-more:hover i{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge-x{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;
}
.badge-green{background:var(--primary-light);color:var(--primary)}
.badge-orange{background:var(--accent-soft);color:#C4531F}
.badge-line{background:transparent;border:1px solid var(--primary-line);color:var(--primary)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--border);box-shadow:0 6px 20px -14px rgba(11,46,42,.28)}
.header-inner{position:relative;display:flex;align-items:center;height:76px}
.nav-side{display:flex;align-items:center;gap:26px;flex:1}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);
  transition:width .2s ease;border-radius:2px;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:20px}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{width:20px}
.brand{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;line-height:1.1;
  transition:transform .25s ease;
}
.brand-main{font-size:19px;font-weight:800;color:var(--primary-dark);letter-spacing:-.5px;white-space:nowrap}
.brand-sub{font-size:11px;font-weight:600;color:var(--accent);letter-spacing:3px;margin-top:3px}
.site-header.is-scrolled .brand-main{font-size:17px}
.nav-cta{height:42px;padding:0 20px;font-size:14px}
.nav-toggle{
  display:none;position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border:1px solid var(--border);border-radius:12px;background:#fff;
  color:var(--primary);font-size:17px;align-items:center;justify-content:center;
}
.mobile-menu{
  display:none;background:#fff;border-top:1px solid var(--divider);
  padding:8px 0 0;
}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:flex;align-items:center;height:52px;padding:0 24px;font-size:16px;
  color:var(--text-2);border-bottom:1px solid var(--divider);
}
.mobile-menu a.active{color:var(--primary);font-weight:700}
.mobile-menu .mm-cta{padding:16px 24px 20px;border-bottom:none}
.mobile-menu .mm-cta .btn-x{width:100%}

/* ---------- Banner ---------- */
.page-banner{position:relative;overflow:hidden;background:var(--primary-deep)}
.banner-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.banner-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,46,42,.86) 0%,rgba(11,46,42,.62) 52%,rgba(11,46,42,.34) 100%)}
.banner-inner{position:relative;padding:52px 0 46px;color:#fff}
.breadcrumb-x{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(244,247,246,.72);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb-x a{color:rgba(244,247,246,.82)}
.breadcrumb-x a:hover{color:#fff}
.breadcrumb-x .sep{opacity:.5}
.banner-title{font-size:44px;line-height:1.18;color:#fff;letter-spacing:-.8px;margin:14px 0 16px;max-width:16ch}
.banner-lead{max-width:56ch;font-size:17px;color:rgba(244,247,246,.86);line-height:1.8}
.anchor-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.anchor-nav a{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(244,247,246,.34);color:rgba(244,247,246,.92);font-size:13.5px;font-weight:500;
  transition:all .22s ease;background:rgba(255,255,255,.05);
}
.anchor-nav a:hover{background:#fff;color:var(--primary-dark);border-color:#fff}
.banner-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:34px;
  border-top:1px solid rgba(244,247,246,.2);padding-top:22px;
}
.banner-stats .stat{flex:1 1 190px;padding-right:26px;border-right:1px solid rgba(244,247,246,.16);margin-right:26px}
.banner-stats .stat:last-child{border-right:none;margin-right:0;padding-right:0}
.stat-num{font-size:28px;font-weight:800;color:var(--accent);letter-spacing:-.6px}
.stat-label{font-size:13px;color:rgba(244,247,246,.74);margin-top:2px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.bg-warm{background:var(--bg)}
.bg-white{background:#fff}
.bg-light-green{background:var(--primary-light)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--support);letter-spacing:1.6px;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.h2-x{font-size:30px;line-height:1.3;letter-spacing:-.6px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;max-width:66ch}

/* ---------- 快速定位条 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.quick-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;transition:all .22s ease;height:100%;
}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--primary-line)}
.quick-icon{
  width:42px;height:42px;border-radius:12px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:17px;margin-bottom:16px;
}
.quick-card h3{font-size:17px;margin-bottom:8px}
.quick-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.quick-card .qc-meta{margin-top:14px;font-size:12.5px;color:var(--text-3);display:flex;align-items:center;gap:6px}

/* ---------- 对比区 ---------- */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.compare-col{
  border-radius:var(--r-card);padding:34px 32px;position:relative;overflow:hidden;
  display:flex;flex-direction:column;
}
.cc-self{background:#fff;border:1px solid var(--border);box-shadow:var(--sh-1)}
.cc-help{background:var(--primary-deep);color:var(--inv)}
.cc-help::after{
  content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;
  background:radial-gradient(circle,rgba(242,115,63,.24),transparent 70%);border-radius:50%;
}
.cc-head{position:relative;z-index:1;display:flex;align-items:center;gap:12px;margin-bottom:8px}
.cc-head i{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:16px;
}
.cc-self .cc-head i{background:var(--primary-light);color:var(--primary)}
.cc-help .cc-head i{background:rgba(242,115,63,.18);color:var(--accent)}
.compare-col h3{font-size:22px;letter-spacing:-.5px;position:relative;z-index:1;margin-bottom:10px}
.cc-help h3{color:#fff}
.cc-desc{font-size:14.5px;line-height:1.75;position:relative;z-index:1;margin-bottom:24px}
.cc-self .cc-desc{color:var(--text-2)}
.cc-help .cc-desc{color:rgba(244,247,246,.78)}
.cc-list{position:relative;z-index:1;display:flex;flex-direction:column;gap:14px;flex:1}
.cc-list li{display:flex;gap:12px;font-size:15px;line-height:1.7}
.cc-list li .dot{
  flex:0 0 auto;width:18px;height:18px;border-radius:6px;margin-top:5px;
  display:flex;align-items:center;justify-content:center;font-size:10px;
}
.cc-self .cc-list li .dot{background:var(--primary-light);color:var(--primary)}
.cc-help .cc-list li .dot{background:rgba(242,115,63,.2);color:var(--accent)}
.cc-self .cc-list li{color:var(--text)}
.cc-help .cc-list li{color:rgba(244,247,246,.92)}
.cc-foot{position:relative;z-index:1;margin-top:28px}
.cc-help .cc-foot .btn-x{width:100%}

/* ---------- 异常速查 ---------- */
.issue-list{border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;background:#fff}
.issue-row{
  display:grid;grid-template-columns:250px 1fr 190px;gap:24px;align-items:center;
  padding:22px 26px;border-bottom:1px solid var(--divider);transition:background .22s ease;
}
.issue-row:last-child{border-bottom:none}
.issue-row:hover{background:#FAFCFB}
.issue-name{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;color:var(--text)}
.issue-name i{color:var(--accent);font-size:15px;width:18px;text-align:center}
.issue-body{font-size:14.5px;color:var(--text-2);line-height:1.75}
.issue-tag{display:flex;justify-content:flex-end}
.issue-tag span{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--primary-light);color:var(--primary);
  font-size:12.5px;font-weight:600;white-space:nowrap;
}

/* ---------- 图文块 ---------- */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.media-row.reverse .media-text{order:2}
.media-img{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1)}
.media-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-text h2{font-size:26px;margin-bottom:16px;letter-spacing:-.5px}
.media-text p{color:var(--text-2);font-size:15.5px;line-height:1.85;margin-bottom:14px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.check-list li{display:flex;gap:12px;font-size:15px;align-items:flex-start}
.check-list li i{color:var(--accent);margin-top:5px;font-size:14px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;background:none;border:none;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;position:relative;
  transition:color .22s ease;
}
.faq-q::before{
  content:"";position:absolute;left:-16px;top:26px;width:3px;height:0;background:var(--accent);
  border-radius:2px;transition:height .22s ease;
}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .faq-q::before{height:22px}
.faq-q i{flex:0 0 auto;font-size:14px;color:var(--text-3);transition:transform .28s ease}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 44px 24px 4px;color:var(--text-2);font-size:15px;line-height:1.85}
.faq-a-inner strong{color:var(--text);font-weight:600}

/* ---------- CTA 深色区 ---------- */
.cta-band{background:var(--primary-deep);color:var(--inv);padding:72px 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,139,132,.3),transparent 70%);
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center}
.cta-band h2{font-size:30px;color:#fff;letter-spacing:-.6px;margin-bottom:14px}
.cta-band p{color:rgba(244,247,246,.8);font-size:16px;max-width:56ch}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-note{font-size:13px;color:rgba(244,247,246,.6);display:flex;align-items:center;gap:8px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-dark);color:rgba(244,247,246,.72);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:42px;padding-bottom:48px}
.footer-brand .brand-main{color:#fff;font-size:18px;font-weight:800}
.footer-brand .brand-sub{color:var(--accent);font-size:11px;letter-spacing:3px;margin-top:4px;display:block}
.footer-brand p{margin-top:16px;line-height:1.8;color:rgba(244,247,246,.66);max-width:32ch}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.footer-links li,.footer-contact li{margin-bottom:12px}
.footer-links a{color:rgba(244,247,246,.72);position:relative;padding-bottom:2px}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .22s ease;
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-contact li{display:flex;align-items:center;gap:10px}
.footer-contact i{color:var(--support);width:16px;text-align:center;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px 28px;justify-content:space-between;
  font-size:12.5px;color:rgba(244,247,246,.5);
}
.footer-bottom a{color:rgba(244,247,246,.62)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .issue-row{grid-template-columns:220px 1fr 170px}
}
@media (max-width:991px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:60px}
  .brand-main{font-size:17px}
  .site-header.is-scrolled .brand-main{font-size:16px}
  .nav-toggle{right:0}
  .container-x{padding:0 16px}
  .page-banner .banner-inner{padding:34px 0 34px}
  .banner-title{font-size:30px;max-width:none}
  .banner-lead{font-size:15.5px}
  .banner-stats .stat{flex:1 1 140px;padding-right:16px;margin-right:16px}
  .stat-num{font-size:22px}
  .section{padding:64px 0}
  .h2-x{font-size:24px}
  .compare-wrap{grid-template-columns:1fr}
  .media-row{grid-template-columns:1fr;gap:28px}
  .media-row.reverse .media-text{order:0}
  .issue-row{grid-template-columns:1fr;gap:10px;padding:20px 20px}
  .issue-tag{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  .quick-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section.tight{padding:44px 0}
  .h2-x{font-size:22px}
  .banner-title{font-size:26px;line-height:1.25}
  .btn-x{width:100%}
  .anchor-nav a{width:auto}
  .btn-x.auto{width:auto}
  .compare-col{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .issue-row{padding:18px 16px}
  .faq-a-inner{padding-right:16px}
  .faq-q{font-size:16px;padding:20px 0}
}