/* roulang page: index */
:root{
  --primary:#2A5C86;
  --primary-dark:#1E4568;
  --primary-light:#E8F0F7;
  --accent:#C9922F;
  --danger:#B4503F;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --dark:#142230;
  --dark-line:#243447;
  --dark-text:#B8C4D0;
  --text:#16202B;
  --text-2:#5C6B7A;
  --line:#E3E8EE;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:4px;
  --r-img:12px;
  --sh-card:0 1px 2px rgba(20,34,48,.04),0 12px 28px -12px rgba(20,34,48,.12);
  --sh-hover:0 2px 6px rgba(20,34,48,.06),0 22px 42px -16px rgba(20,34,48,.20);
  --sec-space:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);letter-spacing:-.3px;}
p{margin:0;}
a{color:var(--primary);text-decoration:none;transition:color 180ms ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;height:auto;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(42,92,134,.35);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:1440px){.container{max-width:1280px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#16202B;color:#fff;font-size:13px;height:36px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;color:#C9D4DF;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-left b{color:#fff;font-weight:600;}
.topbar-left span{color:#8FA1B3;}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:#C9D4DF;font-size:13px;}
.topbar-right a:hover{color:#fff;}
.topbar-btn{display:inline-flex;align-items:center;height:26px;padding:0 12px;background:var(--primary);color:#fff !important;border-radius:6px;font-size:12px;font-weight:600;}
.topbar-btn:hover{background:var(--primary-dark);}
@media(max-width:767px){
  .topbar-right a:not(.topbar-btn){display:none;}
  .topbar-left span{display:none;}
}

/* ---------- 主导航 ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;transition:box-shadow 200ms ease;}
.site-header.is-stuck{box-shadow:0 6px 24px -12px rgba(20,34,48,.22);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:34px;height:34px;border-radius:9px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;letter-spacing:-.5px;}
.logo-text{font-size:18px;font-weight:700;color:var(--primary-dark);white-space:nowrap;letter-spacing:-.2px;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-menu a{position:relative;display:block;padding:10px 14px;font-size:15px;color:var(--text);border-radius:8px;white-space:nowrap;}
.nav-menu a:hover{background:var(--primary-light);color:var(--primary-dark);}
.nav-menu a.active{color:var(--primary);font-weight:600;}
.nav-menu a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);}
.nav-cta{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;background:var(--primary);color:#fff;border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:background 180ms ease,transform 180ms ease;}
.nav-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--primary-dark);font-size:17px;cursor:pointer;}
@media(max-width:1023px){
  .nav-menu,.nav-cta{display:none;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;top:0;left:0;bottom:0;width:290px;max-width:86vw;background:#fff;z-index:120;transform:translateX(-102%);transition:transform 260ms ease;display:flex;flex-direction:column;box-shadow:0 0 40px rgba(20,34,48,.18);}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-body{flex:1;overflow-y:auto;padding:12px 12px 0;}
.drawer-body a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;font-size:16px;color:var(--text);}
.drawer-body a:hover,.drawer-body a.active{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
.drawer-foot{padding:16px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;justify-content:center;}
.drawer-mask{position:fixed;inset:0;background:rgba(20,34,48,.45);z-index:110;opacity:0;visibility:hidden;transition:opacity 240ms ease,visibility 240ms ease;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer-close{width:40px;height:40px;border:0;background:#F1F4F8;border-radius:10px;color:var(--text);font-size:16px;cursor:pointer;}

/* ---------- 按钮 ---------- */
.btn{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;cursor:pointer;border:1px solid transparent;transition:background 180ms ease,color 180ms ease,transform 180ms ease,border-color 180ms ease;white-space:nowrap;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:rgba(42,92,134,.28);color:var(--primary);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;border-bottom:2px solid transparent;padding-bottom:2px;transition:border-color 180ms ease,gap 180ms ease;}
.link-arrow:hover{border-color:var(--primary);gap:10px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-space) 0;}
.section-alt{background:#fff;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.sec-title{font-size:30px;line-height:1.3;position:relative;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary);}
.sec-sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:720px;padding-left:16px;}
@media(max-width:767px){
  :root{--sec-space:48px;}
  .sec-title{font-size:24px;}
}

/* ---------- Hero ---------- */
.hero{background:#fff;padding:72px 0 80px;border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:999px;background:var(--primary-light);color:var(--primary-dark);font-size:13px;font-weight:600;margin-bottom:20px;}
.hero h1{font-size:44px;line-height:1.25;letter-spacing:-.5px;max-width:640px;}
.hero-sub{margin-top:18px;font-size:19px;font-weight:600;color:var(--primary-dark);}
.hero-desc{margin-top:16px;font-size:16px;color:var(--text-2);max-width:640px;}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-metrics{display:flex;gap:32px;margin-top:34px;flex-wrap:wrap;}
.hero-metrics div{font-size:13px;color:var(--text-2);}
.hero-metrics b{display:block;font-size:22px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;background:rgba(42,92,134,.08);}
.hero-float{position:absolute;left:20px;bottom:20px;right:20px;background:rgba(255,255,255,.96);border-radius:12px;padding:14px 16px;display:flex;align-items:center;gap:12px;box-shadow:0 8px 24px -12px rgba(20,34,48,.3);z-index:2;}
.hero-float i{color:var(--primary);font-size:18px;}
.hero-float span{font-size:13px;color:var(--text-2);line-height:1.6;}
.hero-float b{display:block;color:var(--text);font-size:14px;}
@media(max-width:1023px){
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:2;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:17px;}
}
@media(max-width:575px){
  .hero h1{font-size:28px;}
  .hero-metrics{gap:20px;}
}

/* ---------- 指标看板 ---------- */
.board{background:var(--dark);color:#fff;padding:64px 0;}
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.board-cell{padding:0 28px;border-left:1px solid var(--dark-line);}
.board-cell:first-child{border-left:0;padding-left:0;}
.board-num{font-size:46px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-1px;position:relative;padding-bottom:12px;display:inline-block;}
.board-num::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:2px;background:var(--accent);}
.board-num small{font-size:20px;font-weight:600;margin-left:2px;}
.board-name{margin-top:14px;font-size:14px;font-weight:600;color:#fff;}
.board-note{margin-top:6px;font-size:13px;color:var(--dark-text);line-height:1.7;}
@media(max-width:1023px){
  .board{padding:48px 0;}
  .board-grid{grid-template-columns:repeat(2,1fr);gap:36px 0;}
  .board-cell:nth-child(3){border-left:0;padding-left:0;}
  .board-num{font-size:36px;}
}
@media(max-width:575px){
  .board-num{font-size:32px;}
  .board-cell{padding:0 16px;}
}

/* ---------- 卡片基础 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(42,92,134,.28);}
.badge{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:var(--r-badge);font-size:12px;font-weight:600;background:var(--primary-light);color:var(--primary-dark);line-height:1;}
.badge-gold{background:rgba(201,146,47,.14);color:#8E6614;}
.badge-alert{background:rgba(180,80,63,.12);color:var(--danger);}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;grid-template-columns:5fr 7fr;gap:32px;}
.mat-main{background:var(--primary-light);border:1px solid rgba(42,92,134,.14);border-radius:var(--r-card);padding:0;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-card);transition:transform 180ms ease,box-shadow 180ms ease;}
.mat-main:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.mat-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mat-main-body{padding:28px;flex:1;display:flex;flex-direction:column;}
.mat-main h3{font-size:22px;}
.mat-main p{margin-top:12px;font-size:15px;color:var(--text-2);}
.mat-points{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.mat-points li{position:relative;padding-left:20px;font-size:14px;color:var(--text);}
.mat-points li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--accent);}
.mat-more{margin-top:auto;padding-top:20px;display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary);}
.mat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.mat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;display:flex;flex-direction:column;box-shadow:var(--sh-card);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;}
.mat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(42,92,134,.28);}
.mat-icon{width:42px;height:42px;border-radius:11px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px;}
.mat-card h3{font-size:18px;}
.mat-card p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;}
.mat-card .mat-more{padding-top:16px;font-size:14px;}
@media(max-width:1023px){
  .matrix{grid-template-columns:1fr;}
}
@media(max-width:575px){
  .mat-grid{grid-template-columns:1fr;}
}

/* ---------- 结果对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;position:relative;}
.cmp-col{padding:32px;border-radius:var(--r-card);border:1px solid var(--line);}
.cmp-bad{background:#fff;margin-right:24px;}
.cmp-good{background:var(--primary-light);border-color:rgba(42,92,134,.16);margin-left:24px;}
.cmp-head{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:700;}
.cmp-head i{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;}
.cmp-bad .cmp-head i{background:#EEF1F4;color:#8B98A6;}
.cmp-good .cmp-head i{background:var(--primary);color:#fff;}
.cmp-list{margin-top:22px;display:flex;flex-direction:column;gap:16px;}
.cmp-list li{display:flex;gap:12px;font-size:15px;line-height:1.75;}
.cmp-bad .cmp-list li{color:#7B8896;}
.cmp-bad .cmp-list i{margin-top:6px;color:#AEB8C2;font-size:13px;}
.cmp-good .cmp-list i{margin-top:6px;color:var(--primary);font-size:13px;}
.cmp-good .cmp-list li{color:var(--text);}
.cmp-num{color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums;}
.cmp-divider{position:absolute;left:50%;top:12px;bottom:12px;border-left:1px dashed #CFD8E1;}
.cmp-mark{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:38px;height:38px;border-radius:50%;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:14px;box-shadow:var(--sh-card);}
@media(max-width:767px){
  .compare{grid-template-columns:1fr;gap:20px;}
  .cmp-bad,.cmp-good{margin:0;}
  .cmp-divider,.cmp-mark{display:none;}
}

/* ---------- CMS 列表 ---------- */
.cms-list{margin-top:4px;}
.cms-feature{display:flex;overflow:hidden;background:#fff;}
.cms-feature-media{flex:0 0 44%;}
.cms-feature-media img{width:100%;height:100%;min-height:260px;object-fit:cover;}
.cms-feature-body{padding:28px;display:flex;flex-direction:column;gap:12px;}
.cms-feature-body h3{font-size:21px;line-height:1.45;}
.cms-feature-body p{font-size:14.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-2);padding-top:12px;border-top:1px solid var(--line);}
.cms-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px;}
.cms-side{display:flex;flex-direction:column;gap:16px;height:100%;}
.cms-mini{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-card);display:block;transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;}
.cms-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(42,92,134,.28);}
.cms-mini h4{margin-top:10px;font-size:16px;line-height:1.55;color:var(--text);font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-mini:hover h4{color:var(--primary-dark);}
.cms-mini time{display:block;margin-top:10px;font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.cms-empty{background:#fff;border:1px dashed #D3DCE4;border-radius:var(--r-card);padding:56px 24px;text-align:center;}
.cms-empty i{font-size:28px;color:#B8C4D0;}
.cms-empty p{margin:14px 0 20px;color:var(--text-2);font-size:15px;}
@media(max-width:1023px){
  .cms-feature{flex-direction:column;}
  .cms-feature-media{flex:none;}
  .cms-feature-media img{min-height:200px;aspect-ratio:16/9;}
}
@media(max-width:767px){
  .cms-feature-body{padding:22px;}
  .cms-feature-body h3{font-size:18px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:12px;transition:border-color 180ms ease,box-shadow 180ms ease;}
.faq-item.open{border-color:rgba(42,92,134,.28);box-shadow:var(--sh-card);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 22px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--text);cursor:pointer;line-height:1.6;}
.faq-q span{position:relative;padding-left:16px;}
.faq-q span::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:var(--primary);}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform 180ms ease,opacity 180ms ease;}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease;}
.faq-a-inner{padding:0 22px 20px 38px;background:#FAFBFC;font-size:15px;line-height:1.8;color:var(--text-2);}
.faq-a-inner strong{color:var(--text);}
@media(max-width:575px){
  .faq-q{font-size:15.5px;padding:18px;}
  .faq-a-inner{padding:0 18px 18px 34px;}
}

/* ---------- 表单 ---------- */
.contact{background:#fff;}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.contact-info h2{font-size:30px;line-height:1.35;}
.contact-list{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.contact-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2);}
.contact-list li i{position:absolute;left:0;top:5px;color:var(--primary);font-size:14px;}
.contact-meta{margin-top:30px;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--text-2);display:flex;flex-direction:column;gap:8px;}
.contact-meta b{color:var(--text);font-weight:600;}
.form-card{background:var(--primary-light);border:1px solid rgba(42,92,134,.14);border-radius:var(--r-card);padding:24px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:14px;font-weight:600;color:var(--text);}
.form-field label em{color:var(--danger);font-style:normal;margin-left:2px;}
.form-field input,.form-field select,.form-field textarea{width:100%;height:48px;padding:0 14px;border:1px solid #D8E0E8;border-radius:8px;background:#fff;font-size:15px;color:var(--text);font-family:inherit;transition:border-color 180ms ease,box-shadow 180ms ease;}
.form-field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input:hover,.form-field select:hover,.form-field textarea:hover{border-color:#C2CEDA;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(42,92,134,.12);}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.form-hint{font-size:13px;color:var(--text-2);}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--text-2);}
.form-msg{grid-column:1 / -1;display:none;padding:12px 14px;border-radius:8px;background:#fff;border:1px solid rgba(42,92,134,.24);color:var(--primary-dark);font-size:14px;}
.form-msg.show{display:block;}
@media(max-width:1023px){
  .contact-grid{grid-template-columns:1fr;gap:32px;}
}
@media(max-width:575px){
  .form-grid{grid-template-columns:1fr;}
  .form-actions .btn{width:100%;}
}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--primary-light);border-radius:16px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-band h2{font-size:26px;}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px;}
@media(max-width:575px){
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:21px;}
  .cta-band .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--dark-text);padding:64px 0 0;margin-top:var(--sec-space);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .logo-text{color:#fff;font-size:17px;}
.footer-brand .logo-mark{background:var(--primary);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--dark-text);max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:var(--dark-text);transition:color 180ms ease,transform 180ms ease;}
.footer-col a{display:inline-block;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{margin-top:48px;border-top:1px solid var(--dark-line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8697A8;}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:44px;}
}

/* roulang page: article */
:root{
  --brand:#2A5C86;
  --brand-dark:#1E4568;
  --brand-light:#E8F0F7;
  --gold:#C9922F;
  --gold-soft:#FBF3E3;
  --accent:#B4503F;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --ink:#16202B;
  --ink-deep:#142230;
  --muted:#5C6B7A;
  --line:#E3E8EE;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-card:0 1px 2px rgba(20,34,48,.04), 0 12px 28px -12px rgba(20,34,48,.12);
  --shadow-hover:0 2px 4px rgba(20,34,48,.06), 0 18px 36px -14px rgba(20,34,48,.20);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background var(--ease),transform var(--ease);}
a:hover{color:var(--brand-dark);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid rgba(42,92,134,.35);outline-offset:2px;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:1440px){.container{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;transition:box-shadow var(--ease);}
.site-header.is-scrolled{box-shadow:0 10px 26px -16px rgba(20,34,48,.35);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;font-weight:700;font-size:15px;letter-spacing:.5px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;}
.logo-text{font-weight:700;font-size:17px;color:var(--brand-dark);white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:2px;}
.nav-menu a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;border-radius:8px;font-size:15px;color:var(--ink);}
.nav-menu a:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-menu a.active{color:var(--brand);font-weight:600;}
.nav-menu a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--brand);border-radius:2px;}
.nav-cta{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:var(--radius-btn);background:var(--brand);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;}
.nav-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-deep);cursor:pointer;}
.nav-toggle:hover{border-color:rgba(42,92,134,.4);color:var(--brand);}

/* ---------- article hero ---------- */
.article-hero{position:relative;padding:44px 0 40px;overflow:hidden;border-bottom:1px solid var(--line);}
.article-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:1;}
.article-hero::after{content:"";position:absolute;inset:0;background:rgba(246,248,250,.94);}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C2CBD4;}
.breadcrumb .current{color:var(--ink-deep);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{font-size:44px;line-height:1.25;letter-spacing:-.5px;font-weight:700;color:var(--ink-deep);max-width:900px;margin-bottom:20px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;}
.badge{display:inline-block;font-size:12px;line-height:1.6;padding:3px 10px;border-radius:var(--radius-badge);background:var(--brand-light);color:var(--brand-dark);}
.badge-gold{background:var(--gold-soft);color:#8A6218;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C2CBD4;display:inline-block;}

/* ---------- article layout ---------- */
.article-main{padding:56px 0 0;}
.article-layout{display:flex;align-items:flex-start;gap:44px;}
.article-col{flex:1 1 auto;min-width:0;max-width:760px;}
.sidebar{flex:0 0 320px;max-width:320px;position:sticky;top:96px;}
.article-body{font-size:16px;line-height:1.9;color:var(--ink);}
.article-body > p:first-of-type{font-size:17px;color:#22303C;}
.article-body p{margin:0 0 20px;}
.article-body h2{font-size:26px;line-height:1.45;font-weight:700;color:var(--ink-deep);margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);border-radius:2px;}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--brand-dark);margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink-deep);margin:22px 0 10px;}
.article-body ul{margin:0 0 20px;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.8;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;background:var(--gold);border-radius:1px;}
.article-body ol{margin:0 0 20px;padding-left:24px;list-style:decimal;}
.article-body ol li{margin-bottom:10px;line-height:1.8;}
.article-body blockquote{margin:0 0 20px;padding:16px 20px;background:var(--brand-light);border-left:3px solid var(--brand);border-radius:0 8px 8px 0;color:var(--brand-dark);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:14px auto;}
.article-body figure{margin:0 0 22px;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:0 0 22px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:#F1F4F8;color:var(--ink-deep);font-weight:600;}
.article-body code{background:#F1F4F8;border-radius:4px;padding:1px 6px;font-size:14px;}
.article-empty{border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;padding:64px 24px;text-align:center;}
.article-empty i{font-size:30px;color:#B9C4CE;display:block;margin-bottom:14px;}
.article-empty p{font-size:16px;color:var(--muted);margin-bottom:20px;}

/* ---------- sidebar ---------- */
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:20px;margin-bottom:20px;}
.side-card h3{font-size:16px;font-weight:700;color:var(--ink-deep);margin-bottom:12px;}
.side-list li{border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{display:block;padding:10px 0;font-size:14px;line-height:1.7;color:var(--ink);}
.side-list a:hover{color:var(--brand);transform:translateX(4px);}
.side-list .side-time{display:block;font-size:12px;color:var(--muted);margin-top:2px;font-variant-numeric:tabular-nums;}
.side-card-brand{background:var(--brand-light);border-color:rgba(42,92,134,.16);}
.side-card-brand p{font-size:14px;color:var(--brand-dark);line-height:1.8;margin-bottom:14px;}

/* ---------- 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:1px solid transparent;cursor:pointer;transition:background var(--ease),color var(--ease),transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;}
.btn-text i{transition:transform var(--ease);}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- article footer blocks ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);}
.article-tags .tag-label{font-size:14px;color:var(--muted);margin-right:4px;}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px;}
.article-nav a{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:18px 20px;box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
.article-nav a:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(42,92,134,.28);}
.article-nav .nav-label{font-size:12px;color:var(--muted);display:block;margin-bottom:6px;}
.article-nav .nav-title{font-size:16px;font-weight:600;color:var(--ink-deep);line-height:1.6;}
.related{margin-top:64px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:26px;}
.section-head h2{font-size:28px;font-weight:700;color:var(--ink-deep);letter-spacing:-.3px;position:relative;padding-left:14px;border-left:4px solid var(--brand);line-height:1.3;}
.section-head p{font-size:14px;color:var(--muted);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(42,92,134,.28);}
.card-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:#E9EEF3;}
.card-body{padding:18px 20px 20px;}
.card-body h3{font-size:17px;line-height:1.55;font-weight:600;color:var(--ink-deep);margin-bottom:10px;}
.card-body h3 a{color:inherit;}
.card-body h3 a:hover{color:var(--brand);}
.card-body p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:12px;}
.card-meta{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:10px;}

/* ---------- CTA band ---------- */
.cta-section{padding:72px 0 0;}
.cta-band{background:var(--brand-light);border-radius:16px;padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--brand-dark);margin-bottom:14px;letter-spacing:-.3px;}
.cta-band p{font-size:15px;color:#2C4A66;line-height:1.85;margin-bottom:16px;max-width:460px;}
.cta-points li{position:relative;padding-left:24px;font-size:14px;color:var(--brand-dark);margin-bottom:8px;}
.cta-points li i{position:absolute;left:0;top:4px;color:var(--gold);font-size:13px;}
.form-card{background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:24px;}
.form-card h3{font-size:18px;font-weight:700;color:var(--ink-deep);margin-bottom:16px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-deep);margin-bottom:6px;}
.field input,.field select,.field textarea{width:100%;height:48px;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;color:var(--ink);padding:0 14px;font-size:15px;transition:border-color var(--ease),box-shadow var(--ease);}
.field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(42,92,134,.14);}
.form-actions{display:flex;justify-content:flex-end;margin-top:6px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:#B8C4D0;margin-top:88px;padding-top:64px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px;}
.site-footer .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;color:#9DAEBD;line-height:1.85;max-width:330px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;color:#9DAEBD;}
.footer-col a{color:#B8C4D0;}
.footer-col a:hover{color:#fff;transform:translateX(3px);display:inline-block;}
.footer-bottom{border-top:1px solid #243447;padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8B9AA8;}

/* ---------- responsive ---------- */
@media(max-width:1023px){
  .nav-menu{position:absolute;top:72px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 30px -20px rgba(20,34,48,.4);max-height:calc(100vh - 72px);overflow-y:auto;}
  .nav-menu.is-open{display:flex;}
  .nav-menu a{height:52px;padding:0 22px;border-radius:0;border-bottom:1px solid var(--line);}
  .nav-menu a:hover{background:var(--brand-light);}
  .nav-menu a.active::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{flex-direction:column;gap:32px;}
  .article-col{max-width:100%;}
  .sidebar{position:static;flex:1 1 auto;max-width:100%;width:100%;}
  .cta-band{grid-template-columns:1fr;gap:24px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media(max-width:768px){
  .article-title{font-size:32px;}
  .article-hero{padding:32px 0 30px;}
  .article-main{padding:40px 0 0;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .related-grid{grid-template-columns:1fr;}
  .article-nav{grid-template-columns:1fr;}
  .section-head h2{font-size:24px;}
  .cta-section{padding:56px 0 0;}
  .cta-band h2{font-size:23px;}
  .site-footer{margin-top:64px;padding-top:52px;}
}
@media(max-width:575px){
  .container{padding:0 16px;}
  .logo-text{font-size:15px;max-width:150px;overflow:hidden;text-overflow:ellipsis;}
  .nav-cta{height:40px;padding:0 12px;font-size:13px;}
  .nav-cta i{display:none;}
  .article-title{font-size:30px;}
  .article-body{font-size:16px;}
  .breadcrumb .current{max-width:200px;}
  .footer-grid{grid-template-columns:1fr;}
  .form-actions{justify-content:stretch;}
  .form-actions .btn{width:100%;}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --c-primary:#2A5C86;
  --c-primary-dark:#1E4568;
  --c-primary-light:#E8F0F7;
  --c-gold:#C9922F;
  --c-red:#B4503F;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --ink:#142230;
  --ink-2:#16202B;
  --text:#16202B;
  --muted:#5C6B7A;
  --line:#E3E8EE;
  --foot-text:#B8C4D0;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:4px;
  --r-img:12px;
  --shadow:0 1px 2px rgba(20,34,48,.04), 0 12px 28px -12px rgba(20,34,48,.12);
  --shadow-hover:0 2px 4px rgba(20,34,48,.06), 0 20px 36px -16px rgba(20,34,48,.22);
  --t:180ms ease;
  --gap-sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),background-color var(--t),transform var(--t)}
a:hover{color:var(--c-primary-dark)}
p{margin:0 0 16px;max-width:720px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-2)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(42,92,134,.35);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
/* Foundation 默认样式覆盖 */
.grid-container{max-width:1200px;padding-left:16px;padding-right:16px}
@media (min-width:1440px){.grid-container{max-width:1280px}}
body,button,input,select,textarea{font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif}
a.button,button.button{background:var(--c-primary);border-radius:var(--r-btn)}
/* 顶部信息条 */
.topbar{background:var(--ink-2);color:#fff;font-size:13px;line-height:36px;height:36px;overflow:hidden}
.topbar .grid-container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--gold,#C9922F);background:var(--c-gold);flex:0 0 auto}
.topbar-left .sep{width:1px;height:14px;background:rgba(255,255,255,.22)}
.topbar-left span{color:rgba(255,255,255,.78)}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right a{color:rgba(255,255,255,.82);font-size:13px}
.topbar-right a:hover{color:#fff}
.topbar-btn{display:inline-block;height:26px;line-height:26px;padding:0 12px;border-radius:6px;background:var(--c-primary);color:#fff!important;font-size:12px}
.topbar-btn:hover{background:var(--c-primary-dark)}
@media (max-width:767px){
  .topbar-right a{display:none}
  .topbar-left span{display:none}
  .topbar-left .sep{display:none}
}
/* 主导航 */
.site-header{
  background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;transition:box-shadow var(--t);
}
.site-header.is-stuck{box-shadow:0 8px 24px -14px rgba(20,34,48,.28)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:.5px;
}
.logo-text{font-size:19px;font-weight:700;color:var(--ink-2);white-space:nowrap;letter-spacing:-.2px}
.logo:hover .logo-text{color:var(--c-primary-dark)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:#3A4A5A;white-space:nowrap;
}
.nav-menu a:hover{background:var(--c-primary-light);color:var(--c-primary-dark)}
.nav-menu a.active{color:var(--c-primary);font-weight:700}
.nav-menu a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff!important;font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--t),transform var(--t);
}
.nav-cta:hover{background:var(--c-primary-dark);transform:translateY(-1px);color:#fff!important}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:8px;color:var(--c-primary);font-size:18px;cursor:pointer;
}
@media (max-width:1023px){
  .nav-wrap{height:60px;gap:12px}
  .logo-text{font-size:17px}
  .nav-menu{
    position:fixed;left:0;right:0;top:96px;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:12px 16px 96px;overflow-y:auto;
    border-top:1px solid var(--line);display:none;z-index:55;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{height:48px;font-size:16px;border-radius:8px}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{background:var(--c-primary-light)}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
}
/* 小 Hero */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(20,34,48,.72)}
.page-hero .grid-container{position:relative;z-index:2;padding-top:64px;padding-bottom:60px}
.crumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb span{margin:0 8px;opacity:.6}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-badge);
  background:rgba(232,240,247,.16);color:#DCE8F2;font-size:12px;margin-bottom:18px;
}
.hero-badge i{color:var(--c-gold)}
.page-hero h1{color:#fff;font-size:44px;line-height:1.25;letter-spacing:-.5px;max-width:760px}
.page-hero .hero-sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.8;margin:18px 0 0;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(30,69,104,.9)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-light);color:var(--c-primary-dark)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;
  border-bottom:2px solid var(--c-primary);padding-bottom:2px;
}
.btn-text:hover{gap:10px;color:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.hero-metrics{display:flex;flex-wrap:wrap;gap:36px;margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.hero-metrics div{display:flex;flex-direction:column}
.hero-metrics strong{font-size:24px;color:#fff;line-height:1.3}
.hero-metrics span{font-size:13px;color:rgba(255,255,255,.68)}
@media (max-width:1023px){
  .page-hero h1{font-size:34px}
}
@media (max-width:767px){
  .page-hero .grid-container{padding-top:44px;padding-bottom:44px}
  .page-hero h1{font-size:30px}
  .page-hero .hero-sub{font-size:16px}
  .hero-metrics{gap:24px}
}
/* 通用板块 */
.section{padding:var(--gap-sec) 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.3px}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-primary-light);border-radius:var(--r-badge);padding:3px 10px;margin-bottom:12px;letter-spacing:.5px}
@media (max-width:1023px){:root{--gap-sec:64px}.section-head h2{font-size:26px}}
@media (max-width:767px){:root{--gap-sec:48px}.section-head h2{font-size:24px}}
/* 快速判断条 */
.quickbar{background:#fff;border-bottom:1px solid var(--line)}
.quickbar .grid-container{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.quick-item{padding:26px 20px;border-right:1px solid var(--line)}
.quick-item:last-child{border-right:none}
.quick-item i{color:var(--c-primary);font-size:18px;margin-bottom:10px;display:block}
.quick-item h3{font-size:16px;margin-bottom:6px}
.quick-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;max-width:none}
@media (max-width:1023px){
  .quickbar .grid-container{grid-template-columns:repeat(2,1fr)}
  .quick-item{border-bottom:1px solid var(--line)}
  .quick-item:nth-child(2){border-right:none}
  .quick-item:nth-child(3),.quick-item:nth-child(4){border-bottom:none}
}
@media (max-width:575px){
  .quickbar .grid-container{grid-template-columns:1fr}
  .quick-item{border-right:none;border-bottom:1px solid var(--line);padding:20px 16px}
  .quick-item:nth-child(3){border-bottom:1px solid var(--line)}
}
/* 主体：左索引 + 右分节 */
.doc-layout{padding:72px 0 96px}
.side-index{position:sticky;top:104px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow)}
.side-index h4{font-size:13px;letter-spacing:1px;color:var(--muted);font-weight:600;margin-bottom:14px}
.side-index ul li a{
  display:block;padding:9px 12px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  font-size:14px;color:#46586A;line-height:1.5;transition:all var(--t);
}
.side-index ul li a:hover{background:#F4F7FA;color:var(--c-primary-dark);border-left-color:rgba(42,92,134,.35)}
.side-index ul li a.active{background:var(--c-primary-light);color:var(--c-primary-dark);border-left-color:var(--c-primary);font-weight:600}
.side-index .side-tip{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}
.side-index .side-tip a{font-weight:600}
@media (max-width:1023px){
  .doc-layout{padding:44px 0 64px}
  .side-index{position:static;margin-bottom:32px}
  .side-index ul{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}
  .side-index ul li a{border-left:none;border-radius:8px;background:#F4F7FA;padding:10px 12px}
  .side-index ul li a.active{border-left:none}
}
@media (max-width:575px){
  .side-index ul{grid-template-columns:1fr}
}
.doc-section{margin-bottom:56px;scroll-margin-top:96px}
.doc-section:last-child{margin-bottom:0}
.doc-section h2{
  font-size:26px;line-height:1.35;border-left:4px solid var(--c-primary);
  padding-left:14px;margin-bottom:20px;letter-spacing:-.2px;
}
.doc-section h3{font-size:19px;margin:26px 0 12px}
.doc-section p{color:#28394A}
.doc-section p.lead{font-size:17px;color:var(--text)}
.figure{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:#fff}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure figcaption{font-size:13px;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line);text-align:center}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;margin:8px 0 4px}
.split.reverse{grid-template-columns:.95fr 1.05fr}
.split.reverse .figure{order:-1}
@media (max-width:767px){
  .split,.split.reverse{grid-template-columns:1fr;gap:20px}
  .split.reverse .figure{order:0}
}
/* 列表样式 */
.point-list{margin:18px 0 0}
.point-list li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15.5px;line-height:1.8;color:#28394A}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:1px;background:var(--c-gold)}
.check-list{margin:18px 0 0;display:grid;gap:12px}
.check-list li{position:relative;padding:14px 16px 14px 46px;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:15.5px;line-height:1.75}
.check-list li i{position:absolute;left:16px;top:17px;color:var(--c-primary);font-size:15px}
.check-list li strong{color:var(--ink-2)}
.alert-list{display:grid;gap:12px;margin-top:18px}
.alert-list li{display:flex;gap:14px;padding:16px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--c-red);border-radius:10px}
.alert-list li .tag{flex:0 0 auto;height:24px;line-height:24px;padding:0 10px;border-radius:var(--r-badge);background:rgba(180,80,63,.1);color:var(--c-red);font-size:12px;font-weight:600}
.alert-list li p{margin:0;font-size:15px;color:#31465A;line-height:1.75}
/* 通道对照卡 */
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:22px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(42,92,134,.28)}
.compare-card .ic{width:38px;height:38px;border-radius:10px;background:var(--c-primary-light);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:14px}
.compare-card h3{font-size:17px;margin-bottom:10px}
.compare-card dl{margin:0;font-size:14px}
.compare-card dt{color:var(--muted);font-size:12.5px;letter-spacing:.4px;margin-top:10px}
.compare-card dd{margin:2px 0 0;color:#2F4254;line-height:1.7}
.badge{display:inline-block;font-size:12px;padding:2px 9px;border-radius:var(--r-badge);background:var(--c-primary-light);color:var(--c-primary);font-weight:600}
.badge-gold{background:rgba(201,146,47,.12);color:#9A6E1C}
@media (max-width:1023px){.compare-grid{grid-template-columns:1fr}}
/* 步骤 */
.steps{display:grid;gap:16px;margin-top:20px}
.steps li{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--shadow)}
.steps li .n{flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.steps li h3{margin:2px 0 6px;font-size:16.5px}
.steps li p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.75;max-width:none}
/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--t),box-shadow var(--t),border-color var(--t);display:flex;flex-direction:column}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(42,92,134,.28)}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.scene-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.scene-card h3{font-size:17px;margin-bottom:8px}
.scene-card p{font-size:14.5px;color:var(--muted);line-height:1.75;flex:1;margin-bottom:14px;max-width:none}
@media (max-width:1023px){.scene-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575px){.scene-grid{grid-template-columns:1fr}}
/* 数据小条 */
.stats-bar{background:var(--ink);border-radius:16px;overflow:hidden;margin-top:8px}
.stats-bar .grid-x{position:relative}
.stat-cell{padding:32px 24px;border-right:1px solid #243447;text-align:left}
.stat-cell:last-child{border-right:none}
.stat-cell strong{display:block;font-size:40px;line-height:1.1;color:#fff;letter-spacing:-1px}
.stat-cell .rule{width:36px;height:2px;background:var(--c-gold);margin:12px 0 12px;border-radius:2px}
.stat-cell span{display:block;font-size:14px;color:#E3EAF2;margin-bottom:4px}
.stat-cell small{display:block;font-size:13px;color:var(--foot-text);line-height:1.6}
@media (max-width:1023px){
  .stat-cell{border-right:none;border-bottom:1px solid #243447;padding:24px}
  .stat-cell strong{font-size:34px}
}
/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t)}
.faq-item:hover{border-color:rgba(42,92,134,.28)}
.faq-item.is-open{box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 20px;background:none;border:none;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--ink-2);
}
.faq-q .qtext{position:relative;padding-left:14px}
.faq-q .qtext::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;background:var(--c-primary);border-radius:2px}
.faq-q i{color:var(--c-primary);font-size:14px;transition:transform var(--t);flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{display:none;padding:0 20px 18px 34px;background:#FAFBFC}
.faq-item.is-open .faq-a{display:block}
.faq-a p{margin:0;font-size:15px;line-height:1.8;color:#3A4A5A;max-width:none}
/* CTA 带 */
.cta-band{background:var(--c-primary-light);border-radius:16px;padding:36px 32px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{margin:0;color:#3A4A5A;font-size:15px;max-width:620px}
@media (max-width:767px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
}
/* 页脚 */
.site-footer{background:var(--ink);color:var(--foot-text);margin-top:96px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand .logo-mark{background:var(--c-primary)}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--foot-text);margin:16px 0 0;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a,.footer-col ul li{font-size:14px;color:var(--foot-text);line-height:1.7;display:inline-block}
.footer-col ul li a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{border-top:1px solid #243447;padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;flex-wrap:wrap}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding-top:48px;margin-top:64px}
}
/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:50%;background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow);color:var(--c-primary);display:none;
  align-items:center;justify-content:center;cursor:pointer;z-index:50;
}
.to-top.is-show{display:flex}
.to-top:hover{background:var(--c-primary-light);transform:translateY(-2px)}
@media (max-width:767px){.to-top{right:14px;bottom:16px}}

/* roulang page: category3 */
:root{
  --c-primary:#2A5C86;
  --c-primary-dark:#1E4568;
  --c-primary-soft:#E8F0F7;
  --c-gold:#C9922F;
  --c-vermilion:#B4503F;
  --c-bg:#F6F8FA;
  --c-card:#FFFFFF;
  --c-dark:#142230;
  --c-dark-top:#16202B;
  --c-dark-line:#243447;
  --c-text:#16202B;
  --c-muted:#5C6B7A;
  --c-line:#E3E8EE;
  --c-on-dark:#B8C4D0;
  --r-card:14px;
  --r-btn:8px;
  --r-badge:4px;
  --r-input:8px;
  --r-img:12px;
  --sh-card:0 1px 2px rgba(20,34,48,.04), 0 12px 28px -12px rgba(20,34,48,.12);
  --sh-card-hover:0 2px 4px rgba(20,34,48,.06), 0 20px 36px -14px rgba(20,34,48,.2);
  --sh-nav:0 8px 24px -14px rgba(20,34,48,.28);
  --t:180ms ease;
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 16px;max-width:720px;}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.3px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(42,92,134,.35);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark-top);color:#fff;font-size:13px;height:36px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap;color:#D6DEE6;}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--c-gold);display:inline-block;}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:#D6DEE6;font-size:13px;}
.topbar-right a:hover{color:#fff;}
.topbar-btn{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  background:var(--c-primary);color:#fff;border-radius:6px;font-size:12px;line-height:1;
}
.topbar-btn:hover{background:var(--c-primary-dark);color:#fff;}
@media (max-width:767px){
  .topbar-right a{display:none;}
  .topbar-left span.hide-s{display:none;}
}

/* ---------- 主导航 ---------- */
.site-header{
  background:#fff;border-bottom:1px solid var(--c-line);
  position:sticky;top:0;z-index:60;transition:box-shadow var(--t);
}
.site-header.is-stuck{box-shadow:var(--sh-nav);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);white-space:nowrap;}
.logo:hover{color:var(--c-text);}
.logo-mark{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;letter-spacing:.5px;
}
.logo-text{font-weight:700;font-size:18px;letter-spacing:-.2px;color:var(--c-primary-dark);}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  color:var(--c-text);font-size:15px;border-radius:var(--r-btn);white-space:nowrap;
}
.nav-menu a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.nav-menu a.active{color:var(--c-primary);font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;background:var(--c-primary);border-radius:2px;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;
  background:var(--c-primary);color:#fff;border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--t),transform var(--t);
}
.nav-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-btn);
  color:var(--c-primary-dark);font-size:18px;cursor:pointer;
}
@media (max-width:1023px){
  .nav-menu{
    position:fixed;top:0;right:0;width:82%;max-width:340px;height:100%;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:84px 20px 96px;transform:translateX(105%);transition:transform 220ms ease;
    box-shadow:-16px 0 40px -20px rgba(20,34,48,.35);overflow-y:auto;z-index:80;
  }
  .nav-menu.is-open{transform:translateX(0);}
  .nav-menu a{height:48px;font-size:16px;border-radius:var(--r-btn);}
  .nav-menu a.active::after{display:none;}
  .nav-menu a.active{background:var(--c-primary-soft);}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-backdrop{
    position:fixed;inset:0;background:rgba(20,34,48,.42);opacity:0;visibility:hidden;
    transition:opacity var(--t);z-index:70;
  }
  .nav-backdrop.is-open{opacity:1;visibility:visible;}
  .nav-mobile-cta{margin-top:auto;}
  .nav-menu .nav-mobile-cta a{background:var(--c-primary);color:#fff;justify-content:center;font-weight:600;}
}
@media (min-width:1024px){.nav-mobile-cta{display:none;}}

/* ---------- 按钮 ---------- */
.btn{
  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;
  cursor:pointer;border:1px solid transparent;transition:all var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;
  border-bottom:2px solid var(--c-primary);padding-bottom:2px;transition:transform var(--t),color var(--t);
}
.btn-link:hover{color:var(--c-primary-dark);transform:translateX(3px);}
@media (max-width:767px){.btn{height:44px;padding:0 18px;font-size:15px;}}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-alt{background:#fff;}
.section-head{max-width:820px;margin-bottom:32px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:14px;letter-spacing:.4px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-gold);}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px;}
.section-head h2::before{
  content:"";display:inline-block;width:4px;height:24px;background:var(--c-primary);
  border-radius:2px;margin-right:12px;vertical-align:-2px;
}
.section-head p{color:var(--c-muted);font-size:16px;margin:0;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
@media (max-width:767px){
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .section-head h2::before{height:20px;margin-right:10px;}
}

/* ---------- 面包屑 + 首屏 ---------- */
.breadcrumb{font-size:14px;color:var(--c-muted);padding-top:24px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{margin:0 8px;color:#C3CCD6;}
.breadcrumb .cur{color:var(--c-text);}
.page-hero{
  position:relative;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;border-radius:16px;overflow:hidden;margin-top:20px;
}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(42,92,134,.72);}
.page-hero-inner{position:relative;padding:64px 56px;color:#fff;}
.page-hero .eyebrow{background:rgba(255,255,255,.16);color:#fff;}
.page-hero .eyebrow::before{background:var(--c-gold);}
.page-hero h1{
  color:#fff;font-size:44px;line-height:1.25;font-weight:700;letter-spacing:-.5px;margin-bottom:16px;max-width:760px;
}
.page-hero p{color:#DCE7F1;font-size:17px;max-width:720px;}
.page-hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.page-hero-actions .btn-primary{background:#fff;color:var(--c-primary-dark);}
.page-hero-actions .btn-primary:hover{background:#EFF5FA;color:var(--c-primary-dark);}
.page-hero-actions .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;}
.page-hero-actions .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
@media (max-width:1023px){
  .page-hero-inner{padding:48px 32px;}
  .page-hero h1{font-size:34px;}
}
@media (max-width:767px){
  .page-hero-inner{padding:36px 22px;}
  .page-hero h1{font-size:30px;}
  .page-hero p{font-size:16px;}
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:1px;background:var(--c-line);
}
.timeline-item{
  position:relative;display:grid;grid-template-columns:48px 1fr;gap:0 24px;padding:0 0 32px;
}
.timeline-marker{
  position:relative;z-index:2;width:48px;height:48px;border-radius:50%;background:#fff;
  border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;
  color:var(--c-gold);font-weight:700;font-size:15px;letter-spacing:.5px;
}
.timeline-body{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-card);transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.timeline-body:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(42,92,134,.28);}
.timeline-body h3{font-size:20px;margin-bottom:10px;}
.timeline-body p{font-size:15px;color:var(--c-muted);margin:0 0 8px;max-width:720px;}
.timeline-body p:last-child{margin-bottom:0;}
.timeline-media{margin-top:16px;border-radius:var(--r-img);overflow:hidden;}
.timeline-media img{width:100%;aspect-ratio:16/7;object-fit:cover;}
.timeline-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-badge);padding:3px 9px;margin-bottom:12px;
}
.timeline-tag.warn{background:#FBEDEA;color:var(--c-vermilion);}
@media (max-width:767px){
  .timeline-item{grid-template-columns:36px 1fr;gap:0 14px;}
  .timeline-marker{width:36px;height:36px;font-size:13px;}
  .timeline::before{left:17px;}
  .timeline-body{padding:18px;}
}

/* ---------- 做法对照 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;position:relative;}
.compare-card{
  border-radius:var(--r-card);padding:28px;border:1px solid var(--c-line);background:var(--c-card);box-shadow:var(--sh-card);
}
.compare-card h3{font-size:20px;display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.compare-bad{background:#F5F7F9;}
.compare-bad h3{color:var(--c-muted);}
.compare-bad i{color:#9AA7B4;}
.compare-good{background:var(--c-primary-soft);border-color:rgba(42,92,134,.18);}
.compare-good h3{color:var(--c-primary-dark);}
.compare-good i{color:var(--c-primary);}
.compare-list li{
  position:relative;padding-left:24px;margin-bottom:12px;font-size:15px;color:#3D4B59;line-height:1.75;
}
.compare-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:#B8C4D0;
}
.compare-good .compare-list li::before{background:var(--c-gold);}
.compare-good .compare-list li{color:var(--c-primary-dark);}
.compare-mid{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);box-shadow:var(--sh-card);
}
@media (max-width:900px){
  .compare-grid{grid-template-columns:1fr;gap:20px;}
  .compare-mid{display:none;}
}

/* ---------- 自检卡片 ---------- */
.check-grid{margin-top:8px;}
.check-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 22px;height:100%;box-shadow:var(--sh-card);transition:all var(--t);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(42,92,134,.28);}
.check-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.check-card h3{font-size:18px;margin-bottom:10px;}
.check-card p{font-size:15px;color:var(--c-muted);margin:0;}

/* ---------- 数据小条 ---------- */
.note-bar{
  background:var(--c-dark);border-radius:16px;color:#fff;padding:32px;display:grid;
  grid-template-columns:repeat(4,1fr);gap:24px;
}
.note-bar .nb-item{border-right:1px solid var(--c-dark-line);padding-right:24px;}
.note-bar .nb-item:last-child{border-right:0;padding-right:0;}
.nb-num{font-size:34px;font-weight:700;color:#fff;line-height:1.2;border-bottom:2px solid var(--c-gold);display:inline-block;padding-bottom:6px;margin-bottom:10px;}
.nb-name{font-size:14px;color:#E6EDF4;margin-bottom:4px;}
.nb-desc{font-size:13px;color:var(--c-on-dark);line-height:1.7;}
@media (max-width:900px){
  .note-bar{grid-template-columns:1fr 1fr;gap:20px;padding:24px;}
  .note-bar .nb-item{border-right:0;padding-right:0;}
}
@media (max-width:520px){
  .note-bar{grid-template-columns:1fr;}
  .nb-num{font-size:28px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;background:transparent;border:0;padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;text-align:left;cursor:pointer;font-size:17px;font-weight:600;color:var(--c-text);position:relative;padding-left:16px;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:28px;bottom:28px;width:3px;background:var(--c-primary);border-radius:2px;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q i{transition:transform var(--t);color:var(--c-primary);font-size:14px;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease;}
.faq-a-inner{background:#FAFBFC;border-radius:10px;padding:16px;margin:0 0 20px;}
.faq-a-inner p{font-size:15px;line-height:1.8;color:var(--c-muted);margin:0;max-width:100%;}
@media (max-width:767px){.faq-q{font-size:16px;padding:18px 0 18px 14px;}.faq-q::before{top:22px;bottom:22px;}}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-primary-soft);border-radius:16px;padding:40px;display:flex;align-items:center;
  justify-content:space-between;gap:32px;border:1px solid rgba(42,92,134,.14);
}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{color:var(--c-muted);margin:0;max-width:600px;}
@media (max-width:900px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px;}
  .cta-band h2{font-size:22px;}
}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;}
.contact-side h2{font-size:30px;margin-bottom:16px;}
.contact-side p{color:var(--c-muted);}
.tick-list li{position:relative;padding-left:28px;margin-bottom:12px;font-size:15px;color:#3D4B59;}
.tick-list li i{position:absolute;left:0;top:5px;color:var(--c-primary);font-size:14px;}
.contact-meta{margin-top:24px;padding-top:20px;border-top:1px solid var(--c-line);font-size:14px;color:var(--c-muted);line-height:2;}
.form-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--c-muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border:1px solid var(--c-line);border-radius:var(--r-input);
  background:#FCFDFE;padding:0 14px;font-size:15px;color:var(--c-text);font-family:inherit;transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(42,92,134,.12);background:#fff;
}
.form-actions{display:flex;justify-content:flex-end;align-items:center;gap:14px;margin-top:4px;}
.form-hint{font-size:13px;color:var(--c-muted);margin-top:12px;}
@media (max-width:900px){
  .contact-grid{grid-template-columns:1fr;gap:28px;}
  .contact-side h2{font-size:24px;}
}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}.form-actions{justify-content:stretch;}.form-actions .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:var(--c-on-dark);padding:64px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{background:var(--c-primary);}
.footer-brand p{font-size:14px;color:var(--c-on-dark);margin-top:16px;max-width:340px;line-height:1.85;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:var(--c-on-dark);}
.footer-col ul li a{color:var(--c-on-dark);font-size:14px;display:inline-block;transition:color var(--t),transform var(--t);}
.footer-col ul li a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--c-dark-line);
  display:flex;justify-content:space-between;gap:16px;font-size:13px;color:#8B98A6;flex-wrap:wrap;
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:48px 0 20px;}
}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;}
@media (min-width:1440px){.grid-container{max-width:1280px;}}
.grid-margin-x{margin-left:-16px;margin-right:-16px;}
.grid-margin-x>.cell{padding-left:16px;padding-right:16px;}
@media (min-width:768px){.grid-margin-x{margin-left:-24px;margin-right:-24px;}.grid-margin-x>.cell{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.grid-margin-x{margin-left:-32px;margin-right:-32px;}.grid-margin-x>.cell{padding-left:32px;padding-right:32px;}}
.grid-x>.cell{margin-bottom:0;}
.button,button{font-family:inherit;}

/* roulang page: category2 */
:root{
  --primary:#2A5C86;
  --primary-dark:#1E4568;
  --primary-light:#E8F0F7;
  --accent:#C9922F;
  --danger:#B4503F;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --ink-dark:#142230;
  --ink-line:#243447;
  --text:#16202B;
  --muted:#5C6B7A;
  --line:#E3E8EE;
  --soft:#FAFBFC;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-card:0 1px 2px rgba(20,34,48,.04), 0 12px 28px -12px rgba(20,34,48,.12);
  --shadow-hover:0 2px 6px rgba(20,34,48,.06), 0 20px 38px -16px rgba(20,34,48,.2);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-dark)}
p{max-width:720px}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid rgba(42,92,134,.35);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{margin:0;letter-spacing:-.4px;line-height:1.35;font-weight:700}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#16202B;color:#fff;font-size:13px;line-height:1;min-height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:36px}
.topbar-left{display:flex;align-items:center;gap:10px;color:#B8C4D0;white-space:nowrap;overflow:hidden}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto}
.topbar-left span{overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.topbar-link{color:#B8C4D0;font-size:13px}
.topbar-link:hover{color:#fff}
.topbar-btn{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:6px;background:var(--primary);color:#fff;font-size:12px;font-weight:600}
.topbar-btn:hover{background:var(--primary-dark);color:#fff}
@media (max-width:767px){
  .topbar-note,.topbar-link{display:none}
}

/* ---------- 主导航 ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:70;transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:0 8px 22px -14px rgba(20,34,48,.35)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:8px;background:var(--primary);color:#fff;font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;letter-spacing:.5px;flex:0 0 auto}
.logo-text{font-size:18px;font-weight:700;color:var(--primary-dark);letter-spacing:-.2px}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{padding:8px 12px;border-radius:8px;color:var(--text);font-size:15px;font-weight:500;white-space:nowrap}
.nav-menu a:hover{background:var(--primary-light);color:var(--primary-dark)}
.nav-menu a.active{color:var(--primary);font-weight:600;box-shadow:inset 0 -2px 0 var(--primary);border-radius:0}
.nav-cta{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:var(--radius-btn);background:var(--primary);color:#fff;font-size:15px;font-weight:600;white-space:nowrap}
.nav-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--primary-dark);font-size:18px;align-items:center;justify-content:center;cursor:pointer}
.nav-overlay{position:fixed;inset:0;background:rgba(20,34,48,.45);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:75}
.nav-overlay.show{opacity:1;visibility:visible}

@media (max-width:1023px){
  .nav-wrap{height:60px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;
    background:#fff;flex-direction:column;align-items:stretch;gap:2px;
    padding:76px 20px 24px;transform:translateX(100%);
    transition:transform .26s ease;box-shadow:-12px 0 34px -18px rgba(20,34,48,.4);
    overflow-y:auto;z-index:80;
  }
  .nav-menu.open{transform:translateX(0)}
  .nav-menu a{padding:12px;border-radius:8px;font-size:16px;line-height:24px;min-height:48px;display:flex;align-items:center}
  .nav-menu a.active{box-shadow:none;background:var(--primary-light)}
  .nav-menu .drawer-cta{margin-top:14px;justify-content:center;background:var(--primary);color:#fff;font-weight:600}
  .nav-menu .drawer-cta:hover{background:var(--primary-dark);color:#fff}
}
@media (min-width:1024px){.drawer-cta{display:none}}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section--white{background:#fff}
.section--tight{padding-top:0}
@media (max-width:1023px){.section{padding:64px 0}}
@media (max-width:575px){.section{padding:48px 0}}

.section-head{margin-bottom:32px;max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.6px;color:var(--primary);background:var(--primary-light);border-radius:var(--radius-badge);padding:4px 10px;margin-bottom:14px}
.section-title{font-size:30px;position:relative;padding-left:14px;color:var(--text)}
.section-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--primary)}
.section-desc{margin:12px 0 0;color:var(--muted);font-size:15px}
@media (max-width:767px){.section-title{font-size:24px}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark)}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.btn-text{height:auto;padding:0 0 2px;border-radius:0;border-bottom:2px solid var(--primary);color:var(--primary)}
.btn-text:hover{color:var(--primary-dark);border-color:var(--primary-dark);transform:translateX(2px)}
@media (max-width:575px){.btn{height:44px;padding:0 18px;font-size:14px}}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--radius-badge);background:var(--primary-light);color:var(--primary-dark)}
.badge--accent{background:rgba(201,146,47,.16);color:#8A6414}
.badge--alert{background:rgba(180,80,63,.12);color:var(--danger)}

/* ---------- 分类页 Hero ---------- */
.page-hero{background:#F1F5F9;border-bottom:1px solid var(--line);padding:44px 0 64px}
.breadcrumb{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px;margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C3CCD6}
.breadcrumb .current{color:var(--text);font-weight:600}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
.page-hero h1{font-size:44px;letter-spacing:-.5px;margin-bottom:18px}
.hero-lead{margin:0 0 26px;color:var(--muted);font-size:16px;line-height:1.9;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:28px;font-size:13px;color:var(--muted)}
.hero-metrics strong{display:block;font-size:20px;color:var(--primary-dark);font-weight:700;line-height:1.4}
.hero-figure{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);background:#fff}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-figure figcaption{position:absolute;left:16px;bottom:16px;background:rgba(20,34,48,.82);color:#fff;font-size:12px;padding:6px 12px;border-radius:6px}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero h1{font-size:36px}
}
@media (max-width:575px){
  .page-hero{padding:28px 0 44px}
  .page-hero h1{font-size:30px}
  .hero-metrics{gap:20px}
}

/* ---------- 卡片网格 + 侧栏 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start}
.fault-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.fault-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;display:flex;flex-direction:column;box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.fault-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(42,92,134,.28)}
.card-icon{width:40px;height:40px;border-radius:10px;background:var(--primary-light);border:1px solid rgba(42,92,134,.18);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:16px}
.fault-card h3{font-size:19px;margin-bottom:10px;color:var(--text)}
.fault-card p{margin:0 0 18px;color:var(--muted);font-size:15px;line-height:1.75;max-width:none}
.card-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600}
.card-more i{transition:transform .18s ease}
.fault-card:hover .card-more i{transform:translateX(4px)}

.sidebar{position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card);margin-bottom:20px}
.side-card h3{font-size:17px;margin-bottom:14px}
.side-nav a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line);color:var(--text);font-size:15px}
.side-nav li:last-child a{border-bottom:0}
.side-nav a:hover{color:var(--primary)}
.side-nav a i{color:#B7C3CF;font-size:12px}
.side-contact{background:var(--ink-dark);border-color:var(--ink-dark);color:#B8C4D0}
.side-contact h3{color:#fff}
.side-contact p{color:#B8C4D0;font-size:14px;line-height:1.8;margin:0 0 16px;max-width:none}
.side-contact .side-contact-row{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:8px 0;border-top:1px solid var(--ink-line);color:#B8C4D0}
.side-contact .side-contact-row strong{color:#fff;font-weight:600}
@media (max-width:1023px){
  .layout{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static}
}
@media (max-width:575px){
  .fault-grid{grid-template-columns:1fr}
}

/* ---------- 图文说明 ---------- */
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center}
.split-figure{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);background:#fff}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:15px;line-height:1.75}
.check-list i{color:var(--primary);margin-top:5px;font-size:14px}
@media (max-width:1023px){.split{grid-template-columns:1fr;gap:28px}}

/* ---------- 三步定位 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:8px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(42,92,134,.28)}
.step-no{width:36px;height:36px;border-radius:50%;background:#fff;border:1.5px solid var(--accent);color:#8A6414;font-weight:700;font-size:14px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.75;max:none}
@media (max-width:1023px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:575px){.steps{grid-template-columns:1fr}}

/* ---------- 对比栏 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:26px;position:relative}
.compare-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card)}
.compare-col--ok{background:var(--primary-light);border-color:rgba(42,92,134,.22)}
.compare-col h3{font-size:18px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.compare-list{display:grid;gap:14px}
.compare-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.75}
.compare-list i{margin-top:5px;font-size:14px;flex:0 0 auto}
.compare-col--bad .compare-list li{color:#7B8794}
.compare-col--bad .compare-list i{color:#A9B4BF}
.compare-col--ok .compare-list li{color:var(--primary-dark)}
.compare-col--ok .compare-list i{color:var(--primary)}
.compare-col--ok .compare-list b{color:#8A6414;font-weight:700}
@media (max-width:767px){
  .compare{grid-template-columns:1fr}
  .compare-col{padding:22px}
}

/* ---------- 近期反馈 ---------- */
.feed{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.feed-item{background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:20px;box-shadow:var(--shadow-card)}
.feed-item h3{font-size:16px;margin:10px 0 8px}
.feed-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.75;max:none}
@media (max-width:1023px){.feed{grid-template-columns:1fr 1fr}}
@media (max-width:575px){.feed{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{position:relative;width:100%;text-align:left;background:none;border:0;padding:20px 48px 20px 16px;font-size:17px;font-weight:600;color:var(--text);line-height:1.6;cursor:pointer;transition:color .18s ease,background .18s ease}
.faq-q::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:2px;background:var(--primary)}
.faq-q:hover{color:var(--primary-dark)}
.faq-q .ico{position:absolute;right:10px;top:50%;transform:translateY(-50%);color:var(--primary);font-size:14px;transition:transform .18s ease}
.faq-item.open .faq-q .ico{transform:translateY(-50%) rotate(45deg)}
.faq-a{display:none;background:var(--soft);border-radius:8px;padding:16px;margin:0 0 18px;color:var(--muted);font-size:15px;line-height:1.8;max-width:none}
.faq-item.open .faq-a{display:block}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--primary-light);border-radius:16px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-band h2{font-size:26px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--primary-dark);font-size:15px;max-width:640px}
@media (max-width:767px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-band h2{font-size:22px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-dark);color:#B8C4D0;padding:64px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.site-footer .logo-text{color:#fff}
.site-footer .logo-mark{background:var(--primary)}
.footer-brand p{color:#B8C4D0;font-size:14px;line-height:1.85;margin:16px 0 0;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col li{color:#B8C4D0;font-size:14px;line-height:1.6}
.footer-col a{color:#B8C4D0;font-size:14px;display:inline-block;transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--ink-line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8E9CAB}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:48px 0 24px;margin-top:64px}
}