/* roulang page: index */
:root{
  --brand:#1A5FD0;
  --brand-dark:#123E86;
  --brand-light:#E8F0FE;
  --teal:#12A594;
  --teal-light:#E4F6F3;
  --amber:#E8833A;
  --amber-light:#FDF1E7;
  --bg:#F6F9FD;
  --bg-deep:#EEF4FC;
  --card:#FFFFFF;
  --text:#101C2E;
  --text-2:#55647C;
  --text-3:#8A97A8;
  --border:#E3E9F2;
  --divider:#EDF2F8;
  --input-border:#D7E0EC;
  --danger:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,28,46,.04), 0 8px 24px rgba(16,28,46,.06);
  --shadow-2:0 2px 6px rgba(16,28,46,.06), 0 18px 40px rgba(16,28,46,.10);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"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;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button,input,select,textarea{font-family:inherit;font-size:100%;line-height:inherit;margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:700;color:var(--text);letter-spacing:-.2px;}
strong{font-weight:600;}
:focus-visible{outline:3px solid rgba(26,95,208,.28);outline-offset:2px;border-radius:6px;}

/* ---------- 容器与通用 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:92px 0;}
.section--tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;}
.section-head .sh-text{max-width:720px;}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head .sh-sub{margin-top:12px;color:var(--text-2);font-size:15.5px;}
.section-head .sh-link{white-space:nowrap;font-size:15px;font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.4px;color:var(--brand-dark);
  background:var(--brand-light);border-radius:var(--radius-pill);padding:6px 14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-align:center;transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(26,95,208,.24),0 10px 22px rgba(26,95,208,.18);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 2px 6px rgba(26,95,208,.26),0 16px 30px rgba(26,95,208,.22);}
.btn-primary:active{transform:translateY(0);background:#103068;}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C9D6E8;}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);background:#DCE8FB;}
.btn-soft{background:var(--brand-light);color:var(--brand-dark);}
.btn-soft:hover{background:#D9E6FB;color:var(--brand-dark);}
.btn-sm{min-height:42px;padding:0 18px;font-size:14.5px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{background:#E7ECF4;color:#9AA6B8;border-color:#E7ECF4;box-shadow:none;cursor:not-allowed;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);}
.link-arrow span.ar{transition:transform .2s ease;}
.link-arrow:hover span.ar{transform:translateX(2px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:var(--brand-light);color:var(--brand-dark);
}
.badge-teal{background:var(--teal-light);color:#0B7A6D;}
.badge-amber{background:var(--amber-light);color:#B9601F;}
.badge-outline{background:#fff;border:1px solid var(--border);color:var(--text-2);}

/* ---------- 顶部导航 ---------- */
.off-canvas-wrapper,.off-canvas-content{overflow:visible;}
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--border);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,28,46,.07);}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,#1A5FD0,#123E86);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(26,95,208,.24);
}
.brand-mark svg{display:block;}
.brand-name{font-size:17.5px;font-weight:700;color:var(--text);letter-spacing:0;white-space:nowrap;}
.brand-sub{display:block;font-size:11.5px;color:var(--text-3);font-weight:400;line-height:1.2;letter-spacing:.3px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 13px;font-size:15px;font-weight:600;color:var(--text-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:18px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle:hover{background:var(--bg);}

/* 移动抽屉 */
.mobile-panel{background:#fff;width:86%;max-width:380px;padding:0;border-left:1px solid var(--border);}
.mobile-panel .mp-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--divider);}
.mobile-panel .mp-title{font-size:15px;font-weight:700;}
.mp-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text-2);cursor:pointer;font-size:18px;line-height:1;}
.mp-list{padding:10px 12px;}
.mp-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 12px;border-radius:12px;
  font-size:15.5px;font-weight:600;color:var(--text);
}
.mp-list a:hover{background:#F5F8FD;color:var(--brand-dark);}
.mp-list a.active{background:var(--brand-light);color:var(--brand-dark);}
.mp-list a .ar{color:var(--text-3);font-weight:400;}
.mp-foot{padding:16px 22px 28px;border-top:1px solid var(--divider);}
.mp-foot .mp-note{font-size:13px;color:var(--text-3);margin-bottom:14px;line-height:1.7;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 84px;
  background:
    radial-gradient(circle at 84% 12%,rgba(26,95,208,.07),transparent 46%),
    linear-gradient(180deg,#F9FBFF 0%,var(--bg) 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(16,28,46,.10) 1px,transparent 1px);
  background-size:22px 22px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 70%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 70%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{font-size:46px;line-height:1.22;margin:22px 0 18px;letter-spacing:-.6px;}
.hero-sub{font-size:16.5px;line-height:1.85;color:var(--text-2);max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-note{
  display:flex;align-items:flex-start;gap:8px;margin-top:24px;
  font-size:13.5px;color:var(--text-3);line-height:1.7;
}
.hero-note::before{content:"";flex:0 0 auto;width:14px;height:14px;margin-top:4px;border-radius:50%;border:1.5px solid #B9C7DA;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  box-shadow:var(--shadow-2);border:1px solid rgba(255,255,255,.7);
}
.hero-float{
  position:absolute;left:-22px;bottom:26px;background:#fff;border:1px solid var(--border);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-1);min-width:190px;
}
.hero-float .hf-label{font-size:12.5px;color:var(--text-3);}
.hero-float .hf-value{font-size:24px;font-weight:700;color:var(--text);line-height:1.3;}
.hero-float .hf-value small{font-size:13px;font-weight:600;color:var(--text-2);margin-left:2px;}

/* ---------- 指标看板 ---------- */
.kpi-section{padding:0 0 84px;}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.kpi-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.kpi-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D3E0F2;}
.kpi-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.kpi-label{font-size:13.5px;color:var(--text-2);font-weight:600;}
.kpi-value{display:flex;align-items:baseline;gap:6px;margin:16px 0 6px;}
.kpi-value strong{font-size:44px;line-height:1.05;font-weight:700;letter-spacing:-1.5px;}
.kpi-value span{font-size:14px;color:var(--text-3);font-weight:600;}
.kpi-bar{height:6px;border-radius:6px;background:var(--divider);overflow:hidden;margin:14px 0 14px;}
.kpi-bar i{display:block;height:100%;border-radius:6px;background:var(--brand);}
.kpi-bar i.is-teal{background:var(--teal);}
.kpi-bar i.is-amber{background:var(--amber);}
.kpi-foot{font-size:12.5px;color:var(--text-3);line-height:1.7;}
.kpi-legend{margin-top:22px;font-size:13px;color:var(--text-3);}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);}
.m-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.m-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D3E0F2;}
.m-card h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.m-card p{font-size:14.5px;line-height:1.75;color:var(--text-2);}
.m-card .m-foot{margin-top:auto;padding-top:20px;}
.m-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand-dark);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.m-icon svg{display:block;}
.m-6{grid-column:span 6;}
.m-3{grid-column:span 3;}
.m-4{grid-column:span 4;}
.m-card--feature{padding:0;overflow:hidden;}
.m-card--feature .mf-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.m-card--feature .mf-body{padding:26px 28px 28px;}
.m-card--feature h3{font-size:22px;}
.m-card--data{background:linear-gradient(160deg,#F3F8FF,#FFFFFF 70%);}
.m-data-list{margin:4px 0 0;}
.m-data-list li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed var(--divider);font-size:14px;color:var(--text-2);}
.m-data-list li:last-child{border-bottom:0;}
.m-data-list b{font-size:19px;color:var(--text);font-weight:700;}
.m-card--solid{background:linear-gradient(150deg,#1A5FD0,#123E86);border-color:transparent;color:#fff;}
.m-card--solid h3,.m-card--solid p{color:#fff;}
.m-card--solid p{color:rgba(255,255,255,.84);}
.m-card--solid .m-icon{background:rgba(255,255,255,.16);color:#fff;}
.m-card--solid .link-arrow{color:#fff;}
.m-card--solid:hover{border-color:transparent;}

/* ---------- 结果对照 ---------- */
.compare-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;}
.compare-row{display:grid;grid-template-columns:220px 1fr;gap:28px;padding:24px 28px;align-items:center;}
.compare-row:nth-child(odd){background:#FAFCFF;}
.compare-label{font-size:15px;font-weight:600;color:var(--text);}
.compare-label small{display:block;font-size:12.5px;color:var(--text-3);font-weight:400;margin-top:4px;}
.bar-line{display:flex;align-items:center;gap:14px;margin:7px 0;}
.bar-name{flex:0 0 58px;font-size:13px;color:var(--text-2);}
.bar-track{flex:1 1 auto;height:14px;border-radius:8px;background:#F1F5FB;overflow:hidden;}
.bar{height:100%;border-radius:8px;transition:width .6s ease;}
.bar-base{background:#C9D4E2;}
.bar-now{background:var(--brand);}
.bar-val{flex:0 0 74px;text-align:right;font-size:13.5px;font-weight:600;color:var(--text);font-variant-numeric:tabular-nums;}
.compare-note{padding:20px 28px 24px;font-size:13px;color:var(--text-3);border-top:1px solid var(--divider);background:#FAFCFF;}

/* ---------- 最新信息 ---------- */
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:grid;grid-template-columns:96px 1fr 28px;gap:22px;align-items:center;
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:20px 24px;box-shadow:var(--shadow-1);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.news-item:hover{border-color:#BFD4F2;box-shadow:var(--shadow-2);transform:translateY(-2px);color:var(--text);}
.news-date{
  display:flex;align-items:center;justify-content:center;
  font-size:13.5px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border-radius:10px;padding:10px 6px;
  font-variant-numeric:tabular-nums;text-align:center;line-height:1.4;
}
.news-title{display:block;font-size:17px;font-weight:600;color:var(--text);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-desc{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-2);
}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:12px;}
.news-time{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.news-arrow{font-size:18px;color:#B8C6D8;transition:transform .2s ease,color .2s ease;}
.news-item:hover .news-arrow{color:var(--brand);transform:translateX(3px);}
.news-empty{
  border:1px dashed #CBD8EA;border-radius:var(--radius-card);background:#FBFDFF;
  padding:56px 24px;text-align:center;
}
.news-empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:700;
}
.news-empty p{color:var(--text-2);font-size:15px;margin-bottom:20px;}

/* ---------- 反馈 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.voice-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
}
.voice-card blockquote{margin:0;font-size:15px;line-height:1.85;color:var(--text);}
.voice-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--divider);display:flex;align-items:center;gap:12px;}
.voice-avatar{
  width:38px;height:38px;border-radius:50%;background:var(--brand-light);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex:0 0 auto;
}
.voice-name{font-size:14px;font-weight:600;color:var(--text);}
.voice-role{font-size:12.5px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:8px 28px;}
.accordion{background:transparent;border:0;margin:0;}
.accordion .accordion-item{border:0;border-bottom:1px solid var(--divider);}
.accordion .accordion-item:last-child{border-bottom:0;}
.accordion .accordion-title{
  position:relative;display:block;background:transparent;border:0;
  padding:22px 56px 22px 0;font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
}
.accordion .accordion-title:hover{color:var(--brand-dark);}
.accordion .accordion-title::before,.accordion .accordion-title::after{
  content:"";position:absolute;right:14px;top:50%;background:var(--brand);border-radius:2px;transition:transform .22s ease,opacity .22s ease;
}
.accordion .accordion-title::before{width:16px;height:2px;transform:translateY(-50%);}
.accordion .accordion-title::after{width:2px;height:16px;transform:translate(7px,-50%);}
.accordion .accordion-item.is-active .accordion-title::after{transform:translate(7px,-50%) scaleY(0);opacity:0;}
.accordion .accordion-content{
  display:none;border:0;background:transparent;padding:0 56px 22px 0;
  font-size:15px;line-height:1.85;color:var(--text-2);
}
.accordion .accordion-content.is-active{display:block;}
.accordion .accordion-content p{margin:0 0 10px;}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- 表单 ---------- */
.contact-section{padding:92px 0;}
.contact-shell{
  background:var(--card);border:1px solid var(--border);border-radius:20px;
  box-shadow:var(--shadow-2);display:grid;grid-template-columns:5fr 7fr;overflow:hidden;
  scroll-margin-top:96px;
}
.contact-aside{
  background:linear-gradient(160deg,#F3F8FF,#E8F0FE 100%);
  padding:40px 36px;border-right:1px solid var(--border);
}
.contact-aside h2{font-size:26px;line-height:1.4;margin-bottom:14px;}
.contact-aside p{font-size:14.5px;line-height:1.85;color:var(--text-2);}
.contact-points{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.contact-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.contact-points li::before{content:"";flex:0 0 auto;width:16px;height:16px;margin-top:4px;border-radius:50%;background:#fff;border:1.5px solid var(--brand);}
.contact-form{padding:40px 36px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-field{display:flex;flex-direction:column;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:8px;}
.form-field label .req{color:var(--danger);margin-left:2px;}
.form-grid input[type="text"],
.form-grid input[type="tel"],
.form-grid input[type="email"],
.form-grid select,
.form-grid textarea{
  display:block;width:100%;margin:0;height:48px;padding:0 14px;
  border:1px solid var(--input-border);border-radius:var(--radius-btn);
  background:#fff;color:var(--text);font-size:15px;line-height:46px;
  box-shadow:none;transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;-webkit-appearance:none;
}
.form-grid select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%2355647C' d='M8 11L3 5.5h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:12px;padding-right:38px;
}
.form-grid textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,95,208,.16);
}
.form-field .help{font-size:12px;color:var(--text-3);margin-top:6px;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.7;}
.check-line input[type="checkbox"]{
  flex:0 0 auto;width:18px;height:18px;margin:3px 0 0;appearance:none;-webkit-appearance:none;
  border:1px solid var(--input-border);border-radius:5px;background:#fff;cursor:pointer;position:relative;
  transition:background-color .18s ease,border-color .18s ease;
}
.check-line input[type="checkbox"]:checked{background:var(--brand);border-color:var(--brand);}
.check-line input[type="checkbox"]:checked::after{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg);
}
.form-actions{margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.form-success{
  display:none;margin-top:20px;padding:16px 18px;border-radius:12px;
  background:var(--teal-light);border:1px solid #BFE8E2;color:#0B7A6D;font-size:14px;line-height:1.7;
}
.form-success.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:#F5F8FC;border-top:1px solid var(--border);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:13.5px;line-height:1.85;color:var(--text-2);max-width:330px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);}
.footer-meta{font-size:13.5px;color:var(--text-2);line-height:1.9;}
.footer-meta strong{color:var(--text);font-weight:600;}
.footer-bar{
  margin-top:52px;border-top:1px solid var(--border);padding:22px 32px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--text-3);
}
.footer-bar a{color:var(--text-3);}
.footer-bar a:hover{color:var(--brand);}
.footer-bar .fb-links{display:flex;flex-wrap:wrap;gap:20px;}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:28px;bottom:28px;z-index:80;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--border);background:#fff;
  color:var(--brand);display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,box-shadow .22s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{box-shadow:var(--shadow-2);color:var(--brand-dark);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1200px){
  .main-nav{gap:2px;}
  .nav-link{padding:0 10px;font-size:14.5px;}
  .nav-link::after{left:10px;right:10px;}
}
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .section--tight{padding:60px 0;}
  .main-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{height:64px;gap:16px;}
  .brand-name{font-size:16.5px;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:36px;}
  .hero-media{order:-1;}
  .hero-float{left:auto;right:16px;bottom:-18px;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .m-6{grid-column:span 12;}
  .m-3{grid-column:span 6;}
  .m-4{grid-column:span 6;}
  .voice-grid{grid-template-columns:1fr;}
  .contact-shell{grid-template-columns:1fr;}
  .contact-aside{border-right:0;border-bottom:1px solid var(--border);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .compare-row{grid-template-columns:1fr;gap:16px;}
  .news-item{grid-template-columns:82px 1fr;gap:18px;}
  .news-arrow{display:none;}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .hero h1{font-size:29px;line-height:1.3;}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{width:100%;}
  .hero-float{position:static;margin-top:16px;left:auto;right:auto;bottom:auto;}
  .kpi-grid{grid-template-columns:1fr;}
  .kpi-value strong{font-size:38px;}
  .m-3,.m-4{grid-column:span 12;}
  .matrix{gap:18px;}
  .bar-name{flex:0 0 50px;font-size:12.5px;}
  .bar-val{flex:0 0 62px;font-size:12.5px;}
  .news-item{grid-template-columns:1fr;gap:14px;padding:18px;}
  .news-date{justify-content:flex-start;padding:6px 12px;width:fit-content;}
  .form-grid{grid-template-columns:1fr;}
  .contact-aside,.contact-form{padding:28px 22px;}
  .faq-wrap{padding:4px 18px;}
  .accordion .accordion-title{font-size:15.5px;padding:18px 44px 18px 0;}
  .accordion .accordion-content{padding-right:20px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bar{padding:20px 16px;}
  .to-top{right:16px;bottom:16px;}
  .compare-row{padding:20px 18px;}
  .compare-note{padding:16px 18px;}
}

/* roulang page: category1 */
:root{
  --brand:#1A5FD0;
  --brand-dark:#123E86;
  --brand-light:#E8F0FE;
  --teal:#12A594;
  --amber:#E8833A;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --ink:#101C2E;
  --ink-2:#55647C;
  --ink-3:#8A97A8;
  --line:#E3E9F2;
  --line-2:#EDF2F8;
  --hover-bg:#F5F8FD;
  --danger:#D64545;
  --r-card:16px;
  --r-btn:10px;
  --r-img:18px;
  --sh-1:0 1px 2px rgba(16,28,46,.04),0 8px 24px rgba(16,28,46,.06);
  --sh-2:0 2px 6px rgba(16,28,46,.06),0 18px 40px rgba(16,28,46,.10);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(26,95,208,.28);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  text-decoration:none;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,95,208,.20);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,95,208,.24);}
.btn-primary:active{transform:translateY(0);background:#0F3470;}
.btn-ghost{background:#fff;border-color:#C9D6E8;color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{background:#EDF1F6;color:#9AA6B6;border-color:#E3E9F2;box-shadow:none;cursor:not-allowed;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow i{font-size:12px;transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
  background:var(--brand-light);color:var(--brand-dark);
}
.badge-teal{background:#E3F6F3;color:#0B7A6E;}
.badge-amber{background:#FDF0E5;color:#B75F16;}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(16,28,46,.07);}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;
}
.brand-name{display:block;font-size:16px;font-weight:700;color:var(--ink);line-height:1.2;letter-spacing:-.01em;}
.brand-sub{display:block;font-size:11px;color:var(--ink-3);line-height:1.4;margin-top:2px;}
.main-nav{display:none;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 13px;border-radius:999px;
  font-size:15px;color:var(--ink-2);text-decoration:none;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{background:var(--hover-bg);color:var(--brand);}
.nav-link.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.main-nav + .header-actions{margin-left:16px;}
.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--hover-bg);border-color:#C9D6E8;}

.drawer-mask{
  position:fixed;inset:0;z-index:60;background:rgba(16,28,46,.42);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:70;height:100%;
  width:86%;max-width:360px;background:#fff;
  padding:22px 20px 32px;overflow-y:auto;
  transform:translateX(102%);transition:transform .3s var(--ease);
  box-shadow:-12px 0 40px rgba(16,28,46,.14);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);cursor:pointer;display:grid;place-items:center;
}
.drawer-close:hover{background:var(--hover-bg);}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-links .nav-link{justify-content:flex-start;padding:12px 14px;border-radius:10px;font-size:15px;}
.drawer-foot{border-top:1px solid var(--line-2);padding-top:18px;font-size:13px;color:var(--ink-2);line-height:1.9;}
.drawer-foot strong{color:var(--ink);font-weight:600;}

@media screen and (min-width:1024px){
  .main-nav{display:flex;}
  .nav-toggle{display:none;}
  .nav-drawer,.drawer-mask{display:none;}
}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F1F6FE 0%,#F6F9FD 100%);
  border-bottom:1px solid var(--line);
  padding:44px 0 46px;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:420px;height:280px;
  background-image:radial-gradient(rgba(26,95,208,.14) 1px,transparent 1px);
  background-size:18px 18px;opacity:.5;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:16px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb i{font-size:10px;color:#B7C1CF;}
.page-title{
  font-size:34px;line-height:1.28;font-weight:700;letter-spacing:-.02em;
  color:var(--ink);max-width:900px;
}
.page-title .accent{color:var(--brand);}
.hero-lead{max-width:820px;margin-top:14px;font-size:16px;line-height:1.9;color:var(--ink-2);}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}

/* ---------- 分类互链 ---------- */
.chip-nav{background:#fff;border-bottom:1px solid var(--line);}
.chip-row{display:flex;flex-wrap:wrap;gap:12px;padding:20px 0;}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;
  border-radius:999px;border:1px solid #C9D6E8;background:#fff;
  font-size:14px;color:var(--ink-2);text-decoration:none;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.chip i{font-size:12px;opacity:.75;}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);transform:translateY(-1px);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.chip.is-active i{opacity:1;}

/* ---------- 板块 ---------- */
.section{padding:84px 0;}
.section--tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em;margin-bottom:14px;}
.section-head p{font-size:15px;line-height:1.9;color:var(--ink-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;grid-template-columns:1fr;gap:28px;
  align-items:center;padding:36px 0;
}
.split + .split{border-top:1px solid var(--line-2);}
.split-media{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff;
}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .35s var(--ease);
}
.split-media:hover img{transform:scale(1.03);}
.split-index{
  position:absolute;left:16px;top:16px;z-index:2;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--brand-dark);
  font-size:12px;font-weight:700;display:inline-flex;align-items:center;
  font-variant-numeric:tabular-nums;
}
.split-body h3{font-size:22px;line-height:1.45;font-weight:600;margin:12px 0 12px;}
.split-body p{font-size:15px;line-height:1.9;color:var(--ink-2);margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.check-list li{
  position:relative;padding-left:28px;font-size:14.5px;line-height:1.8;color:var(--ink-2);
}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:6px;
  background:var(--brand-light);color:var(--brand);
  font-size:10px;display:grid;place-items:center;line-height:1;
}

@media screen and (min-width:900px){
  .split{grid-template-columns:1fr 1fr;gap:56px;padding:44px 0;}
  .split--reverse .split-media{order:2;}
}

/* ---------- 自检清单板块 ---------- */
.check-panel{
  display:grid;grid-template-columns:1fr;gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;
}
@media screen and (min-width:900px){
  .check-panel{grid-template-columns:1.15fr .85fr;gap:36px;padding:36px;}
}
.check-panel h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.check-panel > div > p{font-size:14.5px;color:var(--ink-2);line-height:1.9;margin-bottom:18px;}
.plain-list{display:flex;flex-direction:column;}
.plain-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;line-height:1.8;color:var(--ink-2);
}
.plain-list li:last-child{border-bottom:0;}
.plain-list li i{color:var(--brand);font-size:14px;margin-top:5px;flex:0 0 auto;}
.plain-list li strong{color:var(--ink);font-weight:600;}

.data-card{
  background:linear-gradient(180deg,#F7FAFF 0%,#EEF4FE 100%);
  border:1px solid #DCE7F7;border-radius:14px;padding:24px;
}
.data-card .data-label{font-size:12px;font-weight:600;color:var(--brand-dark);letter-spacing:.04em;margin-bottom:6px;}
.data-card .data-value{
  font-size:40px;line-height:1.1;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.data-card .data-value small{font-size:15px;font-weight:600;color:var(--ink-2);margin-left:4px;}
.data-card .data-note{font-size:12.5px;color:var(--ink-3);line-height:1.7;margin-top:10px;}
.data-rows{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.data-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--ink-2);}
.data-row b{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;}
.bar{height:6px;border-radius:999px;background:#DCE7F7;overflow:hidden;margin-top:6px;}
.bar span{display:block;height:100%;border-radius:999px;background:var(--brand);}
.bar.teal span{background:var(--teal);}

/* ---------- FAQ / Accordion ---------- */
.faq-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-accordion{margin:0;background:transparent;border:0;}
.faq-accordion .accordion-item{border:0;border-bottom:1px solid var(--line-2);}
.faq-accordion .accordion-item:last-child{border-bottom:0;}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;font-size:16.5px;font-weight:600;color:var(--ink);
  background:#fff;border:0;line-height:1.6;
}
.faq-accordion .accordion-title:hover{background:var(--hover-bg);color:var(--brand-dark);}
.faq-accordion .accordion-title::before{
  content:"\2b";font-family:var(--font-cn);font-size:18px;font-weight:600;
  color:var(--brand);order:2;margin-left:16px;width:18px;text-align:center;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"\2212";}
.faq-accordion .accordion-content{
  padding:0 26px 24px;border:0;background:#fff;
  font-size:14.5px;line-height:1.9;color:var(--ink-2);
}
.faq-accordion .accordion-content[aria-hidden="true"]{display:none;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand);border-radius:22px;
  padding:44px 36px;color:#fff;
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:320px;height:200px;
  background-image:radial-gradient(rgba(255,255,255,.20) 1px,transparent 1px);
  background-size:16px 16px;opacity:.65;pointer-events:none;
}
.cta-band .container{position:relative;z-index:1;padding:0;}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;color:#fff;margin-bottom:10px;}
.cta-band p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.86);max-width:660px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-primary{background:#fff;color:var(--brand-dark);box-shadow:none;}
.cta-band .btn-primary:hover{background:#F0F5FF;color:var(--brand-dark);}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
@media screen and (min-width:900px){
  .cta-band{grid-template-columns:1.4fr .6fr;padding:52px 48px;}
}

/* ---------- 页底三入口 ---------- */
.page-exits{
  display:grid;grid-template-columns:1fr;gap:18px;
}
@media screen and (min-width:768px){.page-exits{grid-template-columns:repeat(3,1fr);}}
.exit-card{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);color:var(--ink);text-decoration:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.exit-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9D6E8;color:var(--ink);}
.exit-icon{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;
  background:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;font-size:16px;
}
.exit-card strong{display:block;font-size:15.5px;font-weight:600;}
.exit-card span{display:block;font-size:13px;color:var(--ink-2);margin-top:3px;}
.exit-card i.arrow{margin-left:auto;color:var(--ink-3);font-size:13px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#F5F8FC;border-top:1px solid var(--line);
  padding:64px 0 0;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;}
@media screen and (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media screen and (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;}}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:13.5px;line-height:1.9;color:var(--ink-2);max-width:420px;}
.footer-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--ink-2);}
.footer-links a:hover{color:var(--brand);}
.footer-meta{font-size:13.5px;line-height:2;color:var(--ink-2);}
.footer-meta strong{color:var(--ink);font-weight:600;}
.footer-bar{
  border-top:1px solid var(--line);
  padding:18px 32px;display:flex;flex-wrap:wrap;gap:12px 24px;
  justify-content:space-between;align-items:center;
  font-size:13px;color:var(--ink-3);max-width:1200px;margin:0 auto;
}
.footer-bar .fb-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bar a{color:var(--ink-2);}
.footer-bar a:hover{color:var(--brand);}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:40;
  width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--brand);
  display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),visibility .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .section--tight{padding:48px 0;}
  .page-hero{padding:34px 0 36px;}
  .page-title{font-size:28px;}
  .section-head h2{font-size:24px;}
  .brand-name{font-size:15px;}
}
@media screen and (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:22px;}
  .page-title{font-size:24px;line-height:1.35;}
  .hero-lead{font-size:14.5px;}
  .split-body h3{font-size:19px;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .cta-band h2{font-size:21px;}
  .faq-accordion .accordion-title{padding:18px 18px;font-size:15.5px;}
  .faq-accordion .accordion-content{padding:0 18px 20px;}
  .check-panel{padding:22px;}
  .data-card .data-value{font-size:34px;}
  .footer-bar{padding:16px;flex-direction:column;align-items:flex-start;}
  .footer-brand .brand-name{font-size:15px;}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#1A5FD0;
  --c-primary-dark:#123E86;
  --c-primary-light:#E8F0FE;
  --c-primary-soft:#F5F8FD;
  --c-teal:#12A594;
  --c-teal-light:#E4F6F3;
  --c-amber:#E8833A;
  --c-amber-light:#FDF0E6;
  --c-bg:#F6F9FD;
  --c-card:#FFFFFF;
  --c-text:#101C2E;
  --c-text-2:#55647C;
  --c-text-3:#8A97A8;
  --c-border:#E3E9F2;
  --c-divider:#EDF2F8;
  --r-card:16px;
  --r-btn:10px;
  --r-img:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,46,.04), 0 8px 24px rgba(16,28,46,.06);
  --sh-2:0 2px 6px rgba(16,28,46,.06), 0 18px 40px rgba(16,28,46,.10);
  --container:1200px;
  --t:200ms cubic-bezier(.4,0,.2,1);
  --font-cn:-apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;background-color:transparent;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
table{border-collapse:collapse;}
:focus-visible{outline:3px solid rgba(26,95,208,.28);outline-offset:2px;border-radius:6px;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* Foundation 覆盖 */
.button,button.button{
  background:var(--c-primary);color:#fff;border-radius:var(--r-btn);
  border:none;box-shadow:none;font-family:var(--font-cn);
}
.button:hover,button.button:hover{background:var(--c-primary-dark);color:#fff;}
.accordion{background:transparent;border:none;box-shadow:none;}
.accordion-item{border:none;background:transparent;}
.accordion-title{border:none;font-size:16px;}
.accordion-content{border:none;background:transparent;padding:0;}
[type=text],[type=email],[type=tel],[type=url],textarea,select{
  border-radius:var(--r-btn);border:1px solid #D7E0EC;box-shadow:none;height:48px;font-family:var(--font-cn);
}
textarea{height:auto;}
[type=text]:focus,[type=email]:focus,[type=tel]:focus,textarea:focus,select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(26,95,208,.14);
}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(16,28,46,.06),0 8px 20px rgba(26,95,208,.20);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 2px 6px rgba(16,28,46,.08),0 14px 28px rgba(26,95,208,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--c-primary);border-color:#C9D6E8;}
.btn-outline:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:#A9C4EC;transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.7;letter-spacing:.2px;
}
.badge-primary{background:var(--c-primary-light);color:var(--c-primary-dark);}
.badge-teal{background:var(--c-teal-light);color:#0B7A6D;}
.badge-amber{background:var(--c-amber-light);color:#B65E1E;}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,28,46,.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-text);flex:none;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:36px;height:36px;flex:none;border-radius:12px;
  background:var(--c-primary-light);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.2;letter-spacing:-.2px;}
.brand-sub{display:block;font-size:11px;color:var(--c-text-3);line-height:1.35;letter-spacing:.4px;}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;
  border-radius:8px;font-size:15px;color:var(--c-text-2);
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-light);}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:border-color var(--t),background var(--t);
}
.nav-toggle:hover{border-color:#C9D6E8;background:var(--c-primary-soft);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:transform var(--t),opacity var(--t);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-mask{
  position:fixed;inset:0;background:rgba(16,28,46,.45);z-index:70;
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ============ 文章头部 ============ */
.article-hero{
  background:#fff;
  border-bottom:1px solid var(--c-divider);
  padding:28px 0 40px;
  position:relative;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle, rgba(26,95,208,.06) 0%, rgba(26,95,208,0) 70%);
  pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.crumb-sep{color:#C3CEDD;}
.crumb-current{color:var(--c-text-3);max-width:560px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:860px;position:relative;z-index:1;}
.article-head .badge{margin-bottom:16px;}
.article-title{
  font-size:38px;line-height:1.35;font-weight:700;letter-spacing:-.5px;color:var(--c-text);
  margin-bottom:20px;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13.5px;color:var(--c-text-3);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{color:#B4C1D4;font-size:12px;}
.meta-divider{width:1px;height:13px;background:var(--c-border);display:inline-block;}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;
  align-items:start;
  padding:44px 0 0;
}
.article-panel{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:40px 44px 44px;
}
.article-body{font-size:16px;line-height:1.9;color:var(--c-text);word-break:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:24px;line-height:1.5;font-weight:700;color:var(--c-text);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary);
}
.article-body h3{font-size:20px;line-height:1.55;font-weight:600;margin:32px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:26px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:10px;line-height:1.85;padding-left:2px;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px 0;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(26,95,208,.32);}
.article-body a:hover{border-bottom-color:var(--c-primary);}
.article-body strong{font-weight:600;}
.article-body code{
  background:var(--c-primary-soft);padding:2px 6px;border-radius:6px;
  font-size:14px;color:var(--c-primary-dark);
}
.article-body pre{
  background:#0F1B2D;color:#E7EEF9;padding:20px 22px;border-radius:12px;
  overflow-x:auto;font-size:14px;line-height:1.75;margin:24px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{width:100%;margin:24px 0;font-size:15px;border-radius:12px;overflow:hidden;}
.article-body thead th{background:var(--c-primary-soft);font-weight:600;color:var(--c-text);}
.article-body th,.article-body td{padding:13px 16px;border-bottom:1px solid var(--c-divider);text-align:left;}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body tbody tr:hover{background:#FAFCFF;}
.article-body hr{border:none;border-top:1px solid var(--c-divider);margin:32px 0;}

/* 空状态 */
.empty-state{
  padding:64px 24px;text-align:center;background:#fff;
  border:1px dashed #CFDDF0;border-radius:var(--r-card);
}
.empty-state i{font-size:30px;color:#B9C8DC;margin-bottom:16px;display:block;}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:10px;}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:22px;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px 22px 24px;
}
.side-title{
  font-size:14px;font-weight:600;letter-spacing:.5px;color:var(--c-text-2);
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--c-divider);
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  display:block;font-size:14px;color:var(--c-text-2);padding:7px 10px;border-radius:8px;
  border-left:2px solid transparent;line-height:1.6;
  transition:color var(--t),background var(--t),border-color var(--t);
}
.toc-link:hover{color:var(--c-primary);background:var(--c-primary-soft);border-left-color:var(--c-primary);}
.side-cta{
  background:linear-gradient(180deg,#F4F8FF 0%,#FFFFFF 70%);
  border:1px solid #D8E4F7;
}
.side-cta h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.side-cta p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin-bottom:16px;}
.side-list{display:flex;flex-direction:column;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:46px;padding:10px 10px;font-size:14.5px;color:var(--c-text-2);
  border-radius:8px;transition:background var(--t),color var(--t);
}
.side-list a i{font-size:11px;color:#B9C8DC;transition:transform var(--t),color var(--t);}
.side-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.side-list a:hover i{color:var(--c-primary);transform:translateX(2px);}

/* ============ 文末操作区 ============ */
.article-foot{margin-top:28px;display:flex;flex-direction:column;gap:24px;}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;}
.tag-row .tag-label{font-size:13.5px;color:var(--c-text-3);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--c-text-2);background:#fff;border:1px solid var(--c-border);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.tag:hover{color:var(--c-primary);border-color:#A9C4EC;background:var(--c-primary-light);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.pager-item{
  display:block;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-1);
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.pager-item:hover{border-color:#C7DAF6;box-shadow:var(--sh-2);transform:translateY(-2px);}
.pager-label{font-size:12.5px;color:var(--c-text-3);display:block;margin-bottom:6px;letter-spacing:.4px;}
.pager-text{font-size:15px;font-weight:600;color:var(--c-text);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pager-item:hover .pager-text{color:var(--c-primary);}
.pager-item.is-right{text-align:right;}

/* ============ 相关推荐 ============ */
.section{padding:72px 0 0;}
.section-head{margin-bottom:28px;}
.section-head h2{font-size:26px;font-weight:700;letter-spacing:-.3px;margin-bottom:8px;}
.section-head p{font-size:14.5px;color:var(--c-text-2);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rel-card:hover{transform:translateY(-2px);border-color:#C7DAF6;box-shadow:var(--sh-2);color:inherit;}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#EDF2F8;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body .badge{align-self:flex-start;}
.rel-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--c-text);}
.rel-card:hover .rel-title{color:var(--c-primary);}
.rel-desc{font-size:14px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.rel-more i{font-size:11px;transition:transform var(--t);}
.rel-card:hover .rel-more i{transform:translateX(3px);}

/* ============ CTA ============ */
.cta-band{margin-top:72px;}
.cta-inner{
  position:relative;overflow:hidden;
  background:var(--c-primary-dark);
  border-radius:20px;
  padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 18px 44px rgba(18,62,134,.20);
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  opacity:.16;mix-blend-mode:luminosity;pointer-events:none;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle, rgba(255,255,255,.16) 0%, rgba(255,255,255,0) 68%);pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:620px;}
.cta-text h2{font-size:26px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:-.3px;}
.cta-text p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.82);}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;flex:none;}
.cta-band .btn-primary{background:#fff;color:var(--c-primary-dark);box-shadow:0 8px 22px rgba(0,0,0,.16);}
.cta-band .btn-primary:hover{background:#EAF2FF;color:var(--c-primary-dark);}
.cta-band .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);}

/* ============ 页脚 ============ */
.site-footer{background:#F5F8FC;border-top:1px solid var(--c-border);margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:56px 0 44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:13.5px;line-height:1.9;color:var(--c-text-2);max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:16px;letter-spacing:.4px;}
.footer-links{display:flex;flex-direction:column;gap:2px;}
.footer-links a{
  display:inline-block;padding:6px 0;font-size:13.5px;color:var(--c-text-2);
  transition:color var(--t),transform var(--t);
}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-meta{font-size:13.5px;line-height:1.95;color:var(--c-text-2);}
.footer-meta strong{color:var(--c-text);font-weight:600;}
.footer-bar{
  max-width:var(--container);margin:0 auto;padding:18px 32px;
  border-top:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.fb-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.fb-links a{color:var(--c-text-3);}
.fb-links a:hover{color:var(--c-primary);}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--c-border);color:var(--c-text-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--sh-1);z-index:50;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t),visibility var(--t),transform var(--t),color var(--t),border-color var(--t);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--c-primary);border-color:#C7DAF6;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
  .article-panel{padding:36px 34px 40px;}
}

@media (max-width:1023px){
  .container{padding:0 24px;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:86%;max-width:360px;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 28px;overflow-y:auto;z-index:80;
    transform:translateX(102%);transition:transform .28s ease;
    box-shadow:-14px 0 44px rgba(16,28,46,.14);
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{height:48px;padding:0 14px;font-size:16px;border-radius:10px;}
  .nav-link.active{background:var(--c-primary-light);}
  .article-layout{grid-template-columns:1fr;gap:28px;}
  .article-side{position:static;}
  .article-title{font-size:32px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:40px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-desc{max-width:none;}
}

@media (max-width:767px){
  .article-hero{padding:22px 0 32px;}
  .article-title{font-size:27px;letter-spacing:-.3px;}
  .article-meta{gap:10px;font-size:13px;}
  .meta-divider{display:none;}
  .article-panel{padding:26px 20px 30px;border-radius:14px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:21px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;margin:26px 0 10px;}
  .article-body pre{padding:16px;font-size:13px;}
  .article-body table{font-size:14px;display:block;overflow-x:auto;white-space:nowrap;}
  .pager{grid-template-columns:1fr;}
  .pager-item.is-right{text-align:left;}
  .section{padding:52px 0 0;}
  .section-head h2{font-size:22px;}
  .related-grid{grid-template-columns:1fr;gap:18px;}
  .cta-band{margin-top:52px;}
  .cta-inner{padding:32px 22px;border-radius:16px;gap:24px;}
  .cta-text h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 30px;}
  .footer-bar{padding:16px 24px;flex-direction:column;align-items:flex-start;gap:10px;}
  .to-top{right:16px;bottom:18px;}
}

@media (max-width:479px){
  .container{padding:0 16px;}
  .brand-name{font-size:15px;}
  .brand-sub{font-size:10.5px;}
  .article-title{font-size:24px;}
  .article-panel{padding:22px 16px 26px;}
  .side-card{padding:18px 16px 20px;}
  .footer-bar{padding:16px;}
}

/* roulang page: category3 */
:root{
  --brand:#1A5FD0;
  --brand-dark:#123E86;
  --brand-light:#E8F0FE;
  --teal:#12A594;
  --teal-light:#E4F5F2;
  --amber:#E8833A;
  --amber-light:#FDF0E5;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --ink:#101C2E;
  --muted:#55647C;
  --faint:#8A97A8;
  --line:#E3E9F2;
  --line-soft:#EDF2F8;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(16,28,46,.04),0 8px 24px rgba(16,28,46,.06);
  --shadow-2:0 2px 6px rgba(16,28,46,.06),0 18px 40px rgba(16,28,46,.10);
  --container:1200px;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
strong{font-weight:600}
h1{font-size:36px;line-height:1.28;font-weight:700;letter-spacing:-.01em}
h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{color:var(--muted)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(26,95,208,.28);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-light);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.section-head h2{margin-bottom:14px}
.section-head p{font-size:16px;line-height:1.8}
.lead{font-size:17px;line-height:1.85;color:var(--muted)}
.note{font-size:13px;line-height:1.9;color:var(--faint)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(16,28,46,.08)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);flex:0 0 auto;
}
.brand-name{display:block;font-size:16px;font-weight:700;line-height:1.25;color:var(--ink);white-space:nowrap}
.brand-sub{display:block;font-size:11px;line-height:1.5;color:var(--faint);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 12px;border-radius:999px;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-light)}
.nav-link.active{color:var(--brand-dark);background:var(--brand-light);font-weight:600}
.header-cta{margin-left:8px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;margin-left:auto;flex:0 0 auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,95,208,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,95,208,.26)}
.btn-primary:active{transform:translateY(0);background:var(--brand-dark)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid #C9D6E8}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-1px)}
.btn-link{color:var(--brand);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-link .arw{transition:transform var(--ease)}
.btn-link:hover .arw{transform:translateX(3px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{background:#E7ECF3;color:#9AA6B6;box-shadow:none;cursor:not-allowed;transform:none}

/* ===== Drawer ===== */
.drawer{position:fixed;inset:0;z-index:120;pointer-events:none}
.drawer-backdrop{position:absolute;inset:0;background:rgba(16,28,46,.44);opacity:0;transition:opacity var(--ease)}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:86%;max-width:360px;background:#fff;
  padding:20px 20px 32px;overflow-y:auto;transform:translateX(102%);
  transition:transform 240ms ease;box-shadow:-12px 0 40px rgba(16,28,46,.14);
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-backdrop{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--muted)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:13px 14px;border-radius:12px;font-size:15px;color:var(--muted)}
.drawer-nav a:hover{background:var(--brand-light);color:var(--brand)}
.drawer-nav a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.drawer-foot{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.drawer-foot p{font-size:13px;line-height:1.9;color:var(--faint);margin-bottom:14px}

/* ===== Hero ===== */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(246,249,253,.95) 0%,rgba(238,245,252,.99) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero_inner{padding:34px 0 40px;min-height:220px;display:flex;flex-direction:column;justify-content:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C4CFDE}
.page-hero h1{margin-bottom:14px;max-width:900px}
.page-hero .lead{max-width:760px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:500;color:var(--muted);background:#fff;border:1px solid var(--line);
}
.tag--brand{color:var(--brand-dark);background:var(--brand-light);border-color:#D3E2FA}
.tag--teal{color:#0F7F72;background:var(--teal-light);border-color:#CEEDE8}

/* ===== Category pills ===== */
.cat-pills-wrap{padding:22px 0;background:#fff;border-bottom:1px solid var(--line)}
.cat-pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--muted);background:#fff;border:1px solid var(--line);
  transition:all var(--ease);
}
.pill:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-light)}
.pill.is-current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ===== Cards ===== */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.card:hover{border-color:#C9DCF8;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card h3{margin-bottom:10px}
.card p{font-size:15px;line-height:1.8}
.card-icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);margin-bottom:18px;
}
.card--accent{background:var(--brand);border-color:var(--brand);color:#fff}
.card--accent h3{color:#fff}
.card--accent p{color:rgba(255,255,255,.86)}
.card--accent .card-icon{background:rgba(255,255,255,.16);color:#fff}
.card-num{font-size:13px;font-weight:600;color:var(--faint);letter-spacing:.08em;margin-bottom:10px;display:block}
.card--accent .card-num{color:rgba(255,255,255,.72)}

/* ===== Two-column intro ===== */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.figure{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);background:#fff;position:relative;aspect-ratio:4/3}
.figure img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease}
.figure:hover img{transform:scale(1.03)}
.checklist{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.checklist li{display:flex;gap:12px;font-size:15px;color:var(--muted);line-height:1.8}
.checklist li::before{
  content:"";flex:0 0 auto;width:20px;height:20px;margin-top:4px;border-radius:50%;
  background:var(--brand-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231A5FD0' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat;
}

/* ===== Timeline ===== */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:23px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--brand-light) 0%,var(--line) 100%);
}
.tl-item{position:relative;padding:0 0 34px 68px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid #CFE0F9;color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:.02em;z-index:1;
  transition:all var(--ease);
}
.tl-item:hover .tl-dot{background:var(--brand);border-color:var(--brand);color:#fff}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.tl-item:hover .tl-body{border-color:#C9DCF8;box-shadow:var(--shadow-2)}
.tl-body h3{margin-bottom:8px}
.tl-body p{font-size:15px;line-height:1.8}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}

/* ===== Compare rows ===== */
.compare{display:flex;flex-direction:column;gap:12px}
.cmp-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:0;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cmp-row:hover{border-color:#C9DCF8;box-shadow:var(--shadow-1)}
.cmp-cell{padding:20px 22px;font-size:15px;line-height:1.8}
.cmp-cell--risk{background:#FCFDFF;color:var(--muted);border-right:1px solid var(--line-soft)}
.cmp-cell--act{color:var(--ink)}
.cmp-label{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  letter-spacing:.06em;margin-bottom:8px;
}
.cmp-cell--risk .cmp-label{color:var(--amber)}
.cmp-cell--act .cmp-label{color:var(--teal)}

/* ===== Stats ===== */
.stats{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow-1);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.stat{padding-right:24px;border-right:1px solid var(--line-soft)}
.stat:last-child{border-right:0;padding-right:0}
.stat-label{font-size:13px;color:var(--faint);margin-bottom:10px}
.stat-value{font-size:42px;line-height:1.1;font-weight:700;color:var(--ink);letter-spacing:-.02em}
.stat-value small{font-size:15px;font-weight:600;color:var(--muted);margin-left:6px}
.stat-badge{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;
  border-radius:999px;padding:3px 10px;margin-top:12px;
}
.stat-badge--up{color:#0F7F72;background:var(--teal-light)}
.stat-badge--warn{color:#B4652A;background:var(--amber-light)}
.stat-foot{font-size:12px;color:var(--faint);margin-top:14px}
.stats-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--line-soft)}

/* ===== FAQ ===== */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:8px 26px;box-shadow:var(--shadow-1)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--brand-light)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:transform var(--ease)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{padding:0 0 22px;font-size:15px;line-height:1.9;color:var(--muted);max-width:860px}

/* ===== CTA ===== */
.cta{
  background:var(--brand);border-radius:24px;padding:52px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:40px;align-items:center;
  box-shadow:0 20px 48px rgba(26,95,208,.22);
}
.cta h2{color:#fff;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.86);font-size:16px;line-height:1.85;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta .btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.22);border-color:#fff}
.cta .btn-primary{background:#fff;color:var(--brand);box-shadow:none}
.cta .btn-primary:hover{background:#F0F5FF;color:var(--brand-dark)}

/* ===== Bottom entries ===== */
.entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:8px}
.entry{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px;
  box-shadow:var(--shadow-1);transition:all var(--ease);
}
.entry:hover{border-color:#C9DCF8;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.entry-title{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:4px}
.entry-desc{font-size:13px;color:var(--faint)}
.entry .arw{color:var(--brand);font-size:18px;flex:0 0 auto;transition:transform var(--ease)}
.entry:hover .arw{transform:translateX(3px)}

/* ===== Footer ===== */
.site-footer{background:#F5F8FC;border-top:1px solid var(--line);margin-top:88px}
.site-footer .container{padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.9;color:var(--muted);max-width:420px}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color var(--ease)}
.footer-links a:hover{color:var(--brand)}
.footer-meta{font-size:14px;line-height:2;color:var(--muted)}
.footer-meta strong{color:var(--ink);font-weight:600}
.footer-bar{
  border-top:1px solid var(--line);padding:20px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  max-width:var(--container);margin:0 auto;font-size:13px;color:var(--faint);
}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a:hover{color:var(--brand)}

/* ===== Back to top ===== */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-light)}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .stat-value{font-size:38px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .split{grid-template-columns:minmax(0,1fr);gap:32px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{border-right:0;padding-right:0;padding-bottom:20px;border-bottom:1px solid var(--line-soft)}
  .stat:nth-child(3),.stat:nth-child(4){padding-bottom:0;border-bottom:0}
  .cta{grid-template-columns:minmax(0,1fr);padding:40px}
  .entries{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .page-hero_inner{padding:28px 0 34px;min-height:auto}
  h1{font-size:32px}
  h2{font-size:26px}
}
@media (max-width:767px){
  .grid-3,.grid-2,.grid-4{grid-template-columns:minmax(0,1fr)}
  .cmp-row{grid-template-columns:minmax(0,1fr)}
  .cmp-cell--risk{border-right:0;border-bottom:1px solid var(--line-soft)}
}
@media (max-width:639px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:18px}
  .lead{font-size:16px}
  .brand-name{font-size:14px}
  .brand-sub{font-size:10px}
  .card{padding:22px}
  .timeline::before{left:19px}
  .tl-item{padding:0 0 26px 54px}
  .tl-dot{width:40px;height:40px;font-size:13px}
  .stats{padding:24px}
  .faq{padding:6px 18px}
  .cta{padding:32px 24px;border-radius:20px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bar{padding:18px 16px;flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand:#1A5FD0;
  --brand-dark:#123E86;
  --brand-light:#E8F0FE;
  --green:#12A594;
  --green-light:#E4F6F3;
  --amber:#E8833A;
  --amber-light:#FDF1E7;
  --bg:#F6F9FD;
  --surface:#FFFFFF;
  --text:#101C2E;
  --muted:#55647C;
  --weak:#8A97A8;
  --border:#E3E9F2;
  --line:#EDF2F8;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-1:0 1px 2px rgba(16,28,46,.04), 0 8px 24px rgba(16,28,46,.06);
  --shadow-2:0 2px 6px rgba(16,28,46,.06), 0 18px 40px rgba(16,28,46,.10);
  --ease:cubic-bezier(.4,0,.2,1);
}
/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,dl,dt,dd,form,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.28;color:var(--text)}
h1{font-size:38px}
h2{font-size:30px}
h3{font-size:20px}
p{margin:0 0 14px}
img{display:block;max-width:100%;height:auto;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-dark)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:3px solid rgba(26,95,208,.28);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:.2px}

/* ============ 容器 / 栅格 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.grid-x.gutter-24{margin-left:-12px;margin-right:-12px}
.grid-x.gutter-24 > .cell{padding-left:12px;padding-right:12px;min-width:0}

/* Foundation 覆盖 */
ul.accordion{margin:0;border:0;background:transparent}
ul.accordion li.accordion-item{margin:0;border:0}
.button,h1,h2,h3,h4,h5,h6{font-family:inherit}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,28,46,.07)}
.header-inner{display:flex;align-items:center;gap:22px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  background:var(--brand-light);color:var(--brand);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;color:var(--text);white-space:nowrap}
.brand-sub{font-size:11px;color:var(--weak);letter-spacing:.4px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;color:var(--muted);border-radius:8px;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--brand);background:#F5F8FD}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--border);color:var(--text);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle:hover{background:#F5F8FD;border-color:#C9D6E8}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  cursor:pointer;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,95,208,.20)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,95,208,.26)}
.btn-outline{background:#fff;color:var(--brand);border-color:#C9D6E8}
.btn-outline:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#F2F6FE;color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-sm{min-height:40px;padding:8px 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{background:#E7ECF3;color:#9AA7B8;box-shadow:none;cursor:not-allowed;transform:none;border-color:transparent}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(2px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--brand-light);color:var(--brand-dark);
}
.badge-green{background:var(--green-light);color:#0B7A6D}
.badge-amber{background:var(--amber-light);color:#B65E1E}
.badge-ghost{background:#F2F6FC;color:var(--muted)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:#F6F9FD;
  border-bottom:1px solid var(--line);
  padding:40px 0 44px;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center right;
  opacity:.08;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:60px;
  background:radial-gradient(120% 100% at 50% 100%, rgba(26,95,208,.07), transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:880px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C2CCDA}
.page-hero h1{font-size:34px;letter-spacing:-.2px;margin-bottom:14px}
.hero-lead{font-size:16px;line-height:1.85;color:var(--muted);max-width:720px;margin-bottom:22px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 28px}
.hero-fact{display:flex;align-items:baseline;gap:8px;font-size:14px;color:var(--muted)}
.hero-fact strong{font-size:20px;font-weight:700;color:var(--brand-dark)}
.hero-fact .dot{width:6px;height:6px;border-radius:50%;background:var(--green);display:inline-block;transform:translateY(-2px)}

/* ============ 分类胶囊 ============ */
.cat-strip{background:#fff;border-bottom:1px solid var(--line);padding:16px 0}
.cat-chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;
  padding:9px 18px;border-radius:999px;
  border:1px solid #C9D6E8;background:#fff;color:var(--brand-dark);
  font-size:14px;font-weight:500;
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.chip.is-current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;box-shadow:0 8px 18px rgba(26,95,208,.22)}

/* ============ 板块 ============ */
.section{padding:60px 0}
.section-tight{padding:44px 0}
.section-head{max-width:760px;margin-bottom:30px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.6px;margin-bottom:10px;
}
.section-kicker::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section-title{font-size:28px;margin-bottom:10px}
.section-desc{font-size:15px;color:var(--muted);line-height:1.8}

/* ============ 内容卡 ============ */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:26px;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.card:hover{box-shadow:var(--shadow-2);border-color:#D7E3F5;transform:translateY(-2px)}

.media{
  position:relative;width:100%;aspect-ratio:16/9;
  border-radius:var(--radius-img);overflow:hidden;background:#E9EFF8;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.media:hover img{transform:scale(1.03)}
.media-caption{font-size:12px;color:var(--weak);margin-top:10px}

/* 服务内容总览 */
.overview-block{margin-bottom:44px}
.overview-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}
.overview-list{display:flex;flex-direction:column;gap:14px;margin-top:18px}
.overview-item{display:flex;gap:12px;align-items:flex-start}
.overview-dot{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;margin-top:2px;
}
.overview-item h3{font-size:16px;margin-bottom:2px}
.overview-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}

/* ============ 能力对照行 ============ */
.cap-list{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.cap-row{
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1.15fr) auto;
  gap:22px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.cap-row:last-child{border-bottom:0}
.cap-row:hover{background:#F5F8FD}
.cap-row h3{font-size:17px;margin-bottom:4px}
.cap-row p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.cap-param{font-size:14px;color:var(--brand-dark);font-weight:600;white-space:nowrap}
.cap-tag{justify-self:end}

/* ============ 参数口径 ============ */
.spec-list{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.spec-row{
  display:grid;grid-template-columns:200px minmax(0,1fr);
  gap:20px;padding:18px 24px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.spec-row:nth-child(even){background:#FAFCFF}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:#F5F8FD}
.spec-key{font-size:14px;color:var(--weak);font-weight:600}
.spec-val{font-size:15px;color:var(--text);line-height:1.75}
.spec-note{
  margin-top:16px;font-size:13px;color:var(--weak);
  background:#F7FAFE;border:1px dashed #D7E3F5;border-radius:12px;padding:14px 18px;
}

/* ============ 使用流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
  position:relative;overflow:hidden;
}
.step:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D7E3F5}
.step-num{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1px;margin-bottom:10px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.step::after{
  content:"";position:absolute;right:-18px;bottom:-18px;width:70px;height:70px;border-radius:50%;
  background:radial-gradient(circle, rgba(26,95,208,.07), transparent 70%);
}

/* ============ FAQ ============ */
.faq-wrap{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:8px 26px;
}
.faq-wrap .accordion-item{border-bottom:1px solid var(--line)}
.faq-wrap .accordion-item:last-child{border-bottom:0}
.faq-wrap .accordion-title{
  display:block;position:relative;
  padding:20px 44px 20px 0;
  font-size:16px;font-weight:600;color:var(--text);
  border:0;background:transparent;line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-wrap .accordion-title:hover{color:var(--brand)}
.faq-wrap .accordion-title::before{
  content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);line-height:1;
}
.faq-wrap .accordion-item.is-active .accordion-title{color:var(--brand-dark)}
.faq-wrap .accordion-item.is-active .accordion-title::before{content:"−"}
.faq-wrap .accordion-content{
  padding:0 40px 20px 0;border:0;background:transparent;
  color:var(--muted);font-size:15px;line-height:1.8;
}
.faq-wrap .accordion-content p{margin:0}

/* ============ 侧栏 ============ */
.side-col{position:relative}
.side-sticky{display:flex;flex-direction:column;gap:20px}
.anchor-nav{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:20px;
}
.anchor-title{font-size:14px;color:var(--weak);font-weight:600;letter-spacing:.6px;margin-bottom:10px}
.anchor-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--muted);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.anchor-link::after{content:"›";color:#C2CCDA;font-size:16px;line-height:1}
.anchor-link:hover{background:#F5F8FD;color:var(--brand)}
.anchor-link.is-active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.anchor-link.is-active::after{color:var(--brand)}

.side-card{
  background:linear-gradient(180deg,#F4F8FF,#FFFFFF);
  border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:22px;
}
.side-card h3{font-size:16px;margin-bottom:8px}
.side-num{font-size:22px;font-weight:700;color:var(--brand-dark);margin-bottom:6px}
.side-note{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:16px}
.side-list{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.side-list li{font-size:13px;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.side-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--green);margin-top:8px}

/* ============ CTA 区块 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-dark);
  padding:52px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
  opacity:.12;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:48px;
  background:radial-gradient(120% 100% at 50% 100%, rgba(255,255,255,.08), transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between}
.cta-text{max-width:640px}
.cta-text h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-text p{color:rgba(255,255,255,.82);font-size:15px;margin:0;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 底部三入口 ============ */
.quick-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:20px}
.quick-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.quick-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D7E3F5}
.quick-card h3{font-size:17px;color:var(--text)}
.quick-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.quick-links{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:4px}
.quick-links a{font-size:14px;color:var(--brand)}

/* ============ 页脚 ============ */
.site-footer{background:#F5F8FC;border-top:1px solid var(--border);margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:32px;padding:52px 0 40px;
}
.footer-brand .brand{margin-bottom:14px}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.85;margin:0;max-width:360px}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--brand)}
.footer-meta{font-size:13.5px;color:var(--muted);line-height:2}
.footer-meta strong{color:var(--text);font-weight:600}
.footer-bar{
  border-top:1px solid var(--border);
  padding:18px 32px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--weak);
  max-width:1200px;margin:0 auto;
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px}
.fb-links a{color:var(--weak)}
.fb-links a:hover{color:var(--brand)}

/* ============ 回到顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:28px;z-index:80;
  width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--border);color:var(--brand);
  box-shadow:var(--shadow-1);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .22s var(--ease);
}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{box-shadow:var(--shadow-2);color:var(--brand-dark)}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:380px;
  background:#fff;z-index:100;padding:22px 22px 32px;
  overflow-y:auto;transform:translateX(102%);
  transition:transform .26s var(--ease);
  box-shadow:-12px 0 40px rgba(16,28,46,.12);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--text);background:#fff;
}
.drawer-close:hover{background:#F5F8FD}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{
  padding:13px 14px;border-radius:10px;font-size:15px;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.drawer-nav a::after{content:"›";color:#C2CCDA;font-size:17px;line-height:1}
.drawer-nav a:hover{background:#F5F8FD;color:var(--brand)}
.drawer-nav a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.drawer-foot{border-top:1px solid var(--line);padding-top:18px;font-size:13px;color:var(--muted);line-height:1.9}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,28,46,.45);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .page-hero{padding:32px 0 36px}
  .page-hero h1{font-size:30px}
  .section{padding:52px 0}
  .overview-grid{grid-template-columns:1fr;gap:22px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quick-grid{grid-template-columns:1fr 1fr}
  .side-sticky{gap:16px}
  .side-col{margin-top:8px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{min-height:60px;gap:12px}
  .brand-mark{width:34px;height:34px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .page-hero h1{font-size:25px}
  .hero-lead{font-size:15px}
  .section{padding:44px 0}
  .section-title{font-size:23px}
  h2{font-size:23px}
  .cap-row{grid-template-columns:1fr;gap:10px;padding:18px}
  .cap-param{white-space:normal}
  .cap-tag{justify-self:start}
  .spec-row{grid-template-columns:1fr;gap:4px;padding:16px 18px}
  .steps{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:1fr}
  .faq-wrap{padding:4px 18px}
  .faq-wrap .accordion-title{font-size:15px;padding-right:36px}
  .faq-wrap .accordion-content{padding-right:0}
  .cta-text h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 30px}
  .footer-bar{padding:16px;flex-direction:column;align-items:flex-start}
  .back-top{right:16px;bottom:18px}
  .card{padding:20px}
}
@media (max-width:520px){
  .hero-facts{gap:10px 18px}
  .hero-fact strong{font-size:18px}
  .chip{padding:8px 14px;font-size:13px}
}

/* roulang page: category5 */
/* ================= 设计变量 ================= */
:root{
  --brand:#1A5FD0;
  --brand-dark:#123E86;
  --brand-soft:#E8F0FE;
  --brand-soft-2:#F2F7FE;
  --teal:#12A594;
  --teal-soft:#E4F5F2;
  --amber:#E8833A;
  --amber-soft:#FDF1E7;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --text:#101C2E;
  --text-2:#55647C;
  --text-3:#8A97A8;
  --line:#E3E9F2;
  --line-2:#EDF2F8;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,46,.04), 0 8px 24px rgba(16,28,46,.06);
  --sh-2:0 2px 6px rgba(16,28,46,.06), 0 18px 40px rgba(16,28,46,.10);
  --container:1200px;
  --t:200ms ease;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
}

/* ================= 基础重置 ================= */
*,*::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);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t);}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:3px solid rgba(26,95,208,.28);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-btn) 0;z-index:999;}
.skip-link:focus{left:0;color:#fff;}

/* ================= 容器与板块 ================= */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.row-head{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;}
h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand);}
.text-link i{font-size:12px;transition:transform var(--t);}
.text-link:hover i{transform:translateX(3px);}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn i{font-size:13px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,95,208,.18);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(26,95,208,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(26,95,208,.2);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C9D6E8;}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn[disabled]{background:#EDF1F7;color:#A8B3C2;border-color:#E3E9F2;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-block{width:100%;}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,28,46,.07);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:68px;position:relative;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(140deg,#2A73E0,#123E86);
  color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:var(--r-sm);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft-2);}
.nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.header-cta .cta-short{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle-bar{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--t),opacity var(--t);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ================= 页面 Hero ================= */
.page-hero{
  position:relative;overflow:hidden;
  background-color:#F2F7FE;
  background-image:linear-gradient(100deg,rgba(246,249,253,.96) 0%,rgba(246,249,253,.86) 48%,rgba(232,240,254,.72) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(26,95,208,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;
}
.hero-inner{position:relative;z-index:2;padding:42px 32px 44px;min-height:236px;display:flex;flex-direction:column;justify-content:center;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:14px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb i{font-size:10px;color:#B9C4D3;}
.page-hero h1{
  font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em;
  max-width:820px;
}
.page-hero h1 span{color:var(--brand);}
.hero-lead{margin-top:14px;max-width:720px;font-size:16px;color:var(--text-2);line-height:1.8;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:#fff;color:var(--text-2);
  border:1px solid var(--line);
}
.chip i{font-size:11px;color:var(--brand);}
.wave-deco{position:absolute;right:0;bottom:-6px;width:min(520px,46%);opacity:.5;pointer-events:none;z-index:1;}

/* ================= 分类互链 ================= */
.cat-strip{background:#fff;border-bottom:1px solid var(--line);}
.cat-strip .container{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-top:18px;padding-bottom:18px;}
.cat-strip-label{font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.04em;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text-2);
  background:#fff;border:1px solid #D7E0EC;
  transition:all var(--t);
}
.pill:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft-2);transform:translateY(-1px);}
.pill.current{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 8px 18px rgba(26,95,208,.2);}
.pill.current:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;}

/* ================= 结果对照 ================= */
.compare-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.compare-list{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--sh-1);}
.compare-row{padding:24px 26px;border-top:1px solid var(--line-2);transition:background-color var(--t);}
.compare-row:first-child{border-top:0;}
.compare-row:nth-child(odd){background:#FBFCFE;}
.compare-row:hover{background:var(--brand-soft-2);}
.compare-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:16px;}
.compare-name{font-size:17px;font-weight:600;color:var(--text);}
.compare-note{font-size:13px;color:var(--text-3);}
.bar-line{display:grid;grid-template-columns:118px 1fr 96px;align-items:center;gap:14px;margin-bottom:10px;}
.bar-line:last-child{margin-bottom:0;}
.bar-label{font-size:13px;color:var(--text-2);}
.bar-track{height:12px;border-radius:var(--r-pill);background:#EDF2F8;overflow:hidden;}
.bar-fill{display:block;height:100%;border-radius:var(--r-pill);transition:width 600ms ease;}
.bar-base{background:#C9D4E2;}
.bar-now{background:linear-gradient(90deg,#3A7EE4,#1A5FD0);}
.bar-value{font-size:15px;font-weight:700;text-align:right;color:var(--text);font-variant-numeric:tabular-nums;}
.bar-value.down{color:var(--teal);}
.compare-foot{
  margin-top:22px;display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-2);background:var(--brand-soft-2);
  border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:14px 18px;line-height:1.7;
}
.compare-foot i{color:var(--brand);margin-top:4px;}

/* ================= 案例卡 ================= */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:box-shadow var(--t),border-color var(--t),transform var(--t);
}
.case-card:hover{box-shadow:var(--sh-2);border-color:#C9DCF7;transform:translateY(-2px);}
.case-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDF2F8;}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.case-card:hover .case-media img{transform:scale(1.03);}
.case-tag{
  position:absolute;left:16px;top:16px;
  background:rgba(255,255,255,.94);color:var(--brand);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
  backdrop-filter:blur(4px);
}
.case-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.case-body h3{font-size:19px;}
.case-body p{font-size:15px;line-height:1.8;color:var(--text-2);}
.case-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:8px;}
.stat-pill{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:8px 14px;border-radius:var(--r-sm);background:var(--bg);border:1px solid var(--line);
}
.stat-pill b{font-size:16px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.stat-pill span{font-size:12px;color:var(--text-3);}

/* ================= FAQ（Foundation Accordion） ================= */
.faq-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
ul.accordion.faq-list{margin:0;background:#fff;border:0;}
.accordion.faq-list .accordion-item{border:0;background:#fff;}
.accordion.faq-list .accordion-title{
  position:relative;display:block;
  padding:22px 60px 22px 26px;
  font-size:17px;font-weight:600;color:var(--text);
  border:0;border-top:1px solid var(--line-2);
  transition:background-color var(--t),color var(--t);
}
.accordion.faq-list .accordion-item:first-child .accordion-title{border-top:0;}
.accordion.faq-list .accordion-title:hover,
.accordion.faq-list .accordion-title:focus{background:var(--brand-soft-2);color:var(--brand-dark);}
.accordion.faq-list .accordion-title::before{
  content:"\002B";
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;line-height:1;color:var(--brand);
  transition:transform var(--t);
}
.accordion.faq-list .accordion-item.is-active .accordion-title{color:var(--brand-dark);}
.accordion.faq-list .accordion-item.is-active .accordion-title::before{content:"\2212";}
.accordion.faq-list .accordion-content{
  padding:0 !important;border:0 !important;background:#FBFCFE;color:var(--text-2);
}
.faq-body{padding:4px 26px 24px;font-size:15px;line-height:1.85;color:var(--text-2);border-top:1px dashed var(--line);}
.faq-body p{margin-top:12px;}
.faq-body p:first-child{margin-top:14px;}
.faq-body strong{color:var(--text);font-weight:600;}

/* ================= CTA ================= */
.cta-band{
  position:relative;overflow:hidden;
  background:#0F2A55;
  color:#fff;border-radius:0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:26px 26px;opacity:.6;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;padding:60px 0;}
.cta-copy{max-width:640px;}
.cta-copy h2{color:#fff;font-size:28px;}
.cta-copy p{margin-top:14px;color:#C6D6EF;font-size:15px;line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-primary{background:#fff;color:var(--brand-dark);box-shadow:0 10px 24px rgba(0,0,0,.18);}
.cta-band .btn-primary:hover{background:#E8F0FE;color:var(--brand-dark);}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ================= 三入口 ================= */
.exit-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px;}
.exit-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:10px;color:var(--text);
  transition:box-shadow var(--t),border-color var(--t),transform var(--t);
}
a.exit-card:hover{box-shadow:var(--sh-2);border-color:#C9DCF7;transform:translateY(-2px);color:var(--brand-dark);}
.exit-card h3{font-size:17px;}
.exit-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.exit-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:16px;margin-bottom:4px;
}
.exit-arrow{margin-top:auto;font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.exit-card .pill-row{margin-top:6px;}
.exit-card .pill{font-size:13px;padding:6px 14px;}

/* ================= 页脚 ================= */
.site-footer{margin-top:0;background:#F5F8FC;border-top:1px solid var(--line);padding-top:64px;font-size:14px;color:var(--text-2);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:16px;color:var(--text);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:380px;}
.footer-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);}
.footer-meta{font-size:14px;line-height:1.9;color:var(--text-2);}
.footer-meta strong{color:var(--text);font-weight:600;}
.footer-bar{
  border-top:1px solid var(--line);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
  max-width:var(--container);margin:0 auto;
}
.site-footer .footer-bar{width:100%;max-width:var(--container);margin:0 auto;padding-left:32px;padding-right:32px;}
.fb-links{display:flex;gap:18px;flex-wrap:wrap;}
.fb-links a{color:var(--text-3);}
.fb-links a:hover{color:var(--brand);}

/* ================= 回到顶部 ================= */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--brand);
  display:grid;place-items:center;box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),box-shadow var(--t);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{box-shadow:var(--sh-2);background:var(--brand-soft);}

/* ================= 响应式 ================= */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(16,28,46,.10);
    padding:12px 16px 18px;margin-left:0;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:14px 14px;font-size:15px;}
  .nav-link.active{background:var(--brand-soft);}
  .section{padding:64px 0;}
  .section-sm{padding:52px 0;}
  h2{font-size:26px;}
  .page-hero h1{font-size:29px;}
  .hero-inner{padding:34px 24px 38px;min-height:210px;}
  .case-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .exit-grid{grid-template-columns:1fr 1fr;}
  .cta-inner{padding:50px 0;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .page-hero h1{font-size:25px;}
  .hero-lead{font-size:15px;}
  h2{font-size:23px;}
  .compare-row{padding:20px 18px;}
  .bar-line{grid-template-columns:1fr auto;grid-template-areas:"label value" "track track";row-gap:8px;gap:10px;}
  .bar-label{grid-area:label;}
  .bar-value{grid-area:value;}
  .bar-track{grid-area:track;}
  .exit-grid{grid-template-columns:1fr;}
  .cta-copy h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .cta-actions{width:100%;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .site-footer .footer-bar{padding-left:16px;padding-right:16px;}
  .brand-name{font-size:14px;}
  .brand-sub{font-size:10px;}
  .brand-mark{width:34px;height:34px;}
  .header-cta{display:none;}
  .header-cta .cta-full{display:none;}
  .header-cta .cta-short{display:inline;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .hero-inner{padding:28px 16px 32px;}
  .page-hero h1{font-size:22px;}
  h2{font-size:21px;}
  .case-body{padding:20px;}
  .faq-body{padding:4px 18px 20px;}
  .accordion.faq-list .accordion-title{padding:18px 48px 18px 18px;font-size:16px;}
  .compare-head{flex-direction:column;gap:6px;}
  .to-top{right:16px;bottom:18px;}
}

/* roulang page: category4 */
/* ===================== 设计变量 ===================== */
:root{
  --brand:#1A5FD0;
  --brand-dark:#123E86;
  --brand-soft:#E8F0FE;
  --brand-soft-2:#F3F7FE;
  --green:#12A594;
  --green-soft:#E3F5F2;
  --amber:#E8833A;
  --amber-soft:#FCEFE4;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --ink:#101C2E;
  --ink-2:#55647C;
  --ink-3:#8A97A8;
  --line:#E3E9F2;
  --line-2:#EDF2F8;
  --r-lg:20px;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,28,46,.04), 0 8px 24px rgba(16,28,46,.06);
  --sh-2:0 2px 6px rgba(16,28,46,.06), 0 18px 40px rgba(16,28,46,.10);
  --maxw:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--brand-dark)}
button{font-family:inherit;font-size:inherit;color:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
table{border-collapse:collapse}
strong{font-weight:600}
:focus-visible{outline:3px solid rgba(26,95,208,.28);outline-offset:2px}
::selection{background:var(--brand-soft);color:var(--brand-dark)}

/* ===================== 容器与排版 ===================== */
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0}
.section-alt{background:#fff}
.section-head{max-width:780px;margin-bottom:42px}
.section-head h2{
  font-size:30px;
  line-height:1.36;
  font-weight:700;
  letter-spacing:-.2px;
  color:var(--ink);
}
.section-head p{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-2);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.5px;
  color:var(--brand);
  background:var(--brand-soft);
  padding:6px 14px;
  border-radius:var(--r-pill);
  margin-bottom:18px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,95,208,.24)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C9D6E8}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:#B6CBE9;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#F2F7FE;color:var(--brand);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{background:#E7ECF3;color:var(--ink-3);border-color:#E7ECF3;cursor:not-allowed;transform:none;box-shadow:none}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow .fa-arrow-right{transition:transform .2s var(--ease)}
.link-arrow:hover .fa-arrow-right{transform:translateX(3px)}

/* ===================== 标签 / 徽章 ===================== */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:600;
  line-height:1.6;
  background:var(--brand-soft);
  color:var(--brand-dark);
}
.tag-green{background:var(--green-soft);color:#0B7E71}
.tag-amber{background:var(--amber-soft);color:#B65C1C}
.tag-line{background:#fff;color:var(--ink-2);border:1px solid var(--line)}

/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,28,46,.08)}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  flex-shrink:0;
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--brand-soft);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.brand-name{
  display:block;
  font-size:16.5px;
  font-weight:700;
  letter-spacing:.2px;
  line-height:1.25;
}
.brand-sub{
  display:block;
  font-size:11.5px;
  color:var(--ink-3);
  letter-spacing:.4px;
  line-height:1.4;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 13px;
  border-radius:8px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft-2)}
.nav-link.active{
  color:var(--brand);
  font-weight:600;
  background:var(--brand-soft);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle:hover{border-color:#C9D6E8;background:var(--brand-soft-2)}
.nav-toggle .bars,
.nav-toggle .bars::before,
.nav-toggle .bars::after{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .22s var(--ease),opacity .2s var(--ease);
}
.nav-toggle .bars{position:relative}
.nav-toggle .bars::before{content:"";position:absolute;top:-6px;left:0}
.nav-toggle .bars::after{content:"";position:absolute;top:6px;left:0}
.nav-toggle[aria-expanded="true"] .bars{background:transparent}
.nav-toggle[aria-expanded="true"] .bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bars::after{transform:translateY(-6px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(16,28,46,.36);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:130;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  width:86%;
  max-width:360px;
  height:100%;
  background:#fff;
  z-index:140;
  transform:translateX(101%);
  transition:transform .28s var(--ease);
  display:flex;
  flex-direction:column;
  padding:22px 22px 28px;
  overflow-y:auto;
  box-shadow:-12px 0 40px rgba(16,28,46,.14);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--line-2);
  margin-bottom:16px;
}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--brand-soft-2);border-color:#C9D6E8}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 14px;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
}
.drawer-nav a:hover{background:var(--brand-soft-2);color:var(--brand)}
.drawer-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-nav a i{font-size:12px;color:var(--ink-3)}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line-2)}
.drawer-foot p{font-size:13px;line-height:1.9;color:var(--ink-3);margin-bottom:14px}

/* ===================== 页面 Hero ===================== */
.page-hero{
  position:relative;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  padding:40px 0 44px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(#1A5FD0 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.03;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-70px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(26,95,208,.08),rgba(26,95,208,0) 68%);
  pointer-events:none;
}
.crumb{
  position:relative;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:22px;
}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C3CDDC}
.crumb .current{color:var(--ink-2);font-weight:500}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:44px;
  align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px,3.5vw,40px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.4px;
  color:var(--ink);
}
.hero-lead{
  margin-top:16px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
  max-width:620px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.hero-art{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  background:#fff;
}
.hero-art img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.hero-art:hover img{transform:scale(1.03)}

/* ===================== 分类互链 ===================== */
.chip-strip{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:18px 0;
}
.chip-strip .container{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.chip-strip .strip-label{
  font-size:13px;
  color:var(--ink-3);
  font-weight:600;
  letter-spacing:.4px;
  flex-shrink:0;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid #D7E0EC;
  background:#fff;
  font-size:13.5px;
  font-weight:500;
  color:var(--ink-2);
  transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft-2)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.chip.is-active:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}

/* ===================== 数据概览条 ===================== */
.data-band{
  background:var(--brand-dark);
  color:#fff;
  border-radius:var(--r-lg);
  padding:30px 34px;
  box-shadow:var(--sh-1);
  position:relative;
  overflow:hidden;
}
.data-band::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-90px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:rgba(255,255,255,.05);
}
.data-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:22px;
}
.data-head h2{font-size:18px;font-weight:700;letter-spacing:.2px}
.data-head span{font-size:12.5px;color:rgba(255,255,255,.72)}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
  z-index:1;
}
.data-item{
  padding-left:20px;
  border-left:1px solid rgba(255,255,255,.18);
}
.data-item:first-child{border-left:0;padding-left:0}
.data-item .dl{
  display:block;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:8px;
}
.data-item .dv{
  font-size:32px;
  line-height:1.1;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.5px;
}
.data-item .du{
  font-size:13px;
  font-weight:500;
  margin-left:5px;
  color:rgba(255,255,255,.8);
}
.data-item .dn{
  display:block;
  margin-top:8px;
  font-size:12.5px;
  color:rgba(255,255,255,.68);
}
.data-band .band-note{
  position:relative;
  z-index:1;
  margin-top:22px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:12.5px;
  color:rgba(255,255,255,.7);
  line-height:1.8;
}

/* ===================== 筛选与卡片矩阵 ===================== */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:30px;
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:40px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid #D7E0EC;
  background:#fff;
  font-size:14px;
  font-weight:500;
  color:var(--ink-2);
  cursor:pointer;
  transition:all .2s var(--ease);
}
.filter-chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft-2)}
.filter-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.filter-chip .count{
  font-size:12px;
  font-variant-numeric:tabular-nums;
  color:var(--ink-3);
}
.filter-chip.is-active .count{color:rgba(255,255,255,.85)}

.notice-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.notice-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.notice-card:hover{
  transform:translateY(-2px);
  border-color:#C7DAF7;
  box-shadow:var(--sh-2);
}
.notice-card.is-hidden{display:none}
.notice-thumb{
  overflow:hidden;
  background:var(--line-2);
}
.notice-thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.notice-card:hover .notice-thumb img{transform:scale(1.03)}
.notice-body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.notice-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}
.notice-date{
  font-size:12.5px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.notice-body h3{
  font-size:18px;
  line-height:1.5;
  font-weight:600;
  color:var(--ink);
  margin-bottom:10px;
}
.notice-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-2);
  margin-bottom:20px;
}
.notice-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line-2);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.notice-foot .meta{
  font-size:12.5px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.matrix-empty{
  margin-top:24px;
  border:1px dashed #C9D6E8;
  border-radius:var(--r-card);
  padding:44px 24px;
  text-align:center;
  background:#fff;
}
.matrix-empty i{font-size:26px;color:var(--ink-3);margin-bottom:12px;display:block}
.matrix-empty p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px}
.matrix-empty.is-hidden{display:none}

/* ===================== 查阅方式 + 订阅 ===================== */
.split-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.split-copy h2{
  font-size:28px;
  line-height:1.4;
  font-weight:700;
  letter-spacing:-.2px;
}
.split-copy > p{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-2);
}
.step-list{margin-top:28px;display:flex;flex-direction:column;gap:18px}
.step-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.step-item:hover{border-color:#C7DAF7;box-shadow:var(--sh-1)}
.step-no{
  flex-shrink:0;
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-weight:700;
  font-size:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:4px}
.step-item p{font-size:14px;line-height:1.75;color:var(--ink-2)}

.subscribe-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
}
.subscribe-card .sub-tag{margin-bottom:16px}
.subscribe-card h3{font-size:20px;font-weight:700;color:var(--ink);line-height:1.45}
.subscribe-card > p{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--ink-2);
}
.field-label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--ink-2);
  margin:20px 0 8px;
}
.field-input{
  width:100%;
  height:48px;
  padding:0 16px;
  border:1px solid #D7E0EC;
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field-input::placeholder{color:#A9B4C4}
.field-input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(26,95,208,.16);
}
.form-note{font-size:12.5px;color:var(--ink-3);line-height:1.8;margin-top:12px}
.form-msg{
  margin-top:12px;
  font-size:13.5px;
  line-height:1.7;
  min-height:22px;
}
.form-msg.is-ok{color:#0B7E71}
.form-msg.is-err{color:#D64545}
.subscribe-card .btn{margin-top:16px}
.sub-visual{
  margin-top:24px;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
}
.sub-visual img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ===================== CTA 区块 ===================== */
.cta-band{
  background:var(--brand);
  border-radius:var(--r-lg);
  padding:40px 42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
  box-shadow:0 18px 40px rgba(26,95,208,.18);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-70px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-copy{position:relative;z-index:1;max-width:720px}
.cta-copy h2{font-size:26px;line-height:1.4;font-weight:700;letter-spacing:-.2px}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.88)}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ===================== FAQ ===================== */
.faq-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line-2)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:var(--brand-soft-2);color:var(--brand-dark)}
.faq-icon{
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  transition:transform .22s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-item.is-open .faq-a{max-height:400px}
.faq-a-inner{
  padding:0 26px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-2);
}

/* ===================== 底部三入口 ===================== */
.exit-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr;
  gap:24px;
}
.exit-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;
  flex-direction:column;
  height:100%;
}
.exit-card:hover{transform:translateY(-2px);border-color:#C7DAF7;box-shadow:var(--sh-2)}
.exit-card h3{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.exit-card h3 i{color:var(--brand);font-size:15px}
.exit-links{display:flex;flex-direction:column;gap:2px;margin-bottom:18px}
.exit-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--ink-2);
}
.exit-links a:hover{background:var(--brand-soft-2);color:var(--brand)}
.exit-links a i{font-size:11px;color:var(--ink-3)}
.exit-card > p{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  margin-bottom:18px;
}
.exit-card .exit-btn{margin-top:auto}

/* ===================== 页脚 ===================== */
.site-footer{
  background:#F5F8FC;
  border-top:1px solid var(--line);
  padding:60px 0 0;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{
  font-size:13.5px;
  line-height:1.9;
  color:var(--ink-2);
  max-width:360px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:16px;
  letter-spacing:.3px;
}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  font-size:13.5px;
  color:var(--ink-2);
}
.footer-links a:hover{color:var(--brand)}
.footer-meta{
  font-size:13.5px;
  line-height:2;
  color:var(--ink-2);
}
.footer-meta strong{color:var(--ink);font-weight:600}
.footer-bar{
  border-top:1px solid var(--line);
  padding:18px 32px;
  max-width:var(--maxw);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ink-3);
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a{color:var(--ink-3)}
.fb-links a:hover{color:var(--brand)}

/* ===================== 回到顶部 ===================== */
.to-top{
  position:fixed;
  right:26px;
  bottom:26px;
  width:48px;
  height:48px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--line);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  box-shadow:var(--sh-1);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),box-shadow .2s var(--ease);
  z-index:110;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{box-shadow:var(--sh-2);color:var(--brand-dark)}

/* ===================== 响应式 ===================== */
@media (max-width:1120px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{margin-left:auto}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:68px 0}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-art{max-width:560px}
  .notice-grid{grid-template-columns:repeat(2,1fr)}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:26px 20px}
  .data-item:nth-child(3){border-left:0;padding-left:0}
  .split-grid{grid-template-columns:1fr;gap:36px}
  .exit-grid{grid-template-columns:1fr 1fr}
  .exit-grid .exit-card:first-child{grid-column:1 / -1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .hero-copy h1{font-size:28px}
  .hero-lead{font-size:15px}
  .notice-grid{grid-template-columns:1fr}
  .data-band{padding:24px 22px}
  .data-grid{grid-template-columns:1fr 1fr;gap:22px 16px}
  .data-item{border-left:0;padding-left:0}
  .data-item .dv{font-size:26px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px}
  .cta-copy h2{font-size:22px}
  .faq-q{padding:18px 20px;font-size:15.5px}
  .faq-a-inner{padding:0 20px 20px;font-size:14.5px}
  .exit-grid{grid-template-columns:1fr}
  .exit-grid .exit-card:first-child{grid-column:auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
  .split-copy h2{font-size:23px}
  .subscribe-card{padding:22px}
  .subscribe-card h3{font-size:18px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .header-inner{height:60px;gap:12px}
  .brand-name{font-size:15px}
  .brand-sub{font-size:11px}
  .header-cta .btn{display:none}
  .notice-body{padding:18px}
  .notice-body h3{font-size:16.5px}
  .data-grid{grid-template-columns:1fr}
  .filter-bar{gap:8px}
  .filter-chip{min-height:38px;padding:0 14px;font-size:13.5px}
  .footer-bar{padding:16px;flex-direction:column;align-items:flex-start;gap:10px}
  .to-top{right:16px;bottom:16px}
  .btn{min-height:44px}
  .btn-block-mobile{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}