/* roulang page: index */
:root{
  --c-primary:#1B4F8C;
  --c-primary-700:#143C6B;
  --c-primary-50:#EDF3FB;
  --c-primary-200:#C4D8EF;
  --c-accent:#FF7A2F;
  --c-accent-700:#E4631A;
  --c-accent-50:#FFF3EA;
  --c-teal:#17A08B;
  --c-teal-50:#E9F7F4;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#EEF3FA;
  --c-text:#16202E;
  --c-text-2:#5A6875;
  --c-text-3:#8B97A3;
  --c-line:#E4EAF3;
  --c-line-2:#D3DCE9;
  --c-success:#1F9D62;
  --c-warn:#D98B12;
  --c-error:#D9453C;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,74,.05);
  --sh-2:0 6px 18px -8px rgba(16,42,74,.12);
  --sh-3:0 18px 40px -16px rgba(16,42,74,.18);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:40px;
  --sp-7:56px;
  --sp-8:72px;
  --sp-9:96px;
  --fs-13:13px;
  --fs-15:15px;
  --fs-16:16px;
  --fs-17:17px;
  --fs-20:20px;
  --fs-24:24px;
  --fs-30:30px;
  --fs-40:40px;
}
*,*::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","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:var(--fs-16);
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin-bottom:1.1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-narrow{max-width:820px;}
.section{padding:var(--sp-9) 0;}
.section-tight{padding:var(--sp-8) 0;}
.section-head{max-width:720px;margin-bottom:var(--sp-6);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:var(--fs-13);font-weight:600;color:var(--c-primary);
  background:var(--c-primary-50);border:1px solid var(--c-primary-200);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.h2{font-size:var(--fs-30);line-height:1.34;margin-bottom:14px;}
.section-sub{font-size:var(--fs-16);color:var(--c-text-2);max-width:660px;}
.muted{color:var(--c-text-2);}
.tnum{font-variant-numeric:tabular-nums;}

/* 悬浮胶囊导航 */
.nav-wrap{position:sticky;top:16px;z-index:90;padding:0 24px;}
.nav{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  padding:10px 12px 10px 18px;
  transition:box-shadow var(--t),background var(--t);
}
.nav.is-scrolled{box-shadow:var(--sh-3);background:rgba(255,255,255,.92);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:16px;font-weight:700;letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:var(--fs-15);font-weight:600;color:var(--c-text-2);
  transition:background var(--t),color var(--t);
  white-space:nowrap;
}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary);}
.nav-link.is-active{background:var(--c-primary);color:#fff;}
.nav-cta{margin-left:8px;flex:0 0 auto;}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
  transition:background var(--t);
}
.nav-toggle:hover{background:var(--c-primary-50);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;
  background:#fff;box-shadow:var(--sh-3);border-radius:var(--r-lg) 0 0 var(--r-lg);
  transform:translateX(100%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  z-index:120;padding:24px 18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--c-text-2);
  display:flex;align-items:center;justify-content:center;margin-left:auto;
}
.drawer-title{font-size:var(--fs-13);color:var(--c-text-3);font-weight:600;margin:20px 0 10px;letter-spacing:.08em;}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 14px;
  border-radius:var(--r-sm);font-weight:600;color:var(--c-text-2);
  border-left:3px solid transparent;margin-bottom:4px;
}
.drawer-link:hover{background:var(--c-primary-50);color:var(--c-primary);}
.drawer-link.is-active{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-50);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,42,74,.32);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:110;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:var(--fs-15);font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-700);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-50);}
.btn-white{background:#fff;color:var(--c-primary-700);}
.btn-white:hover{background:var(--c-primary-50);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:var(--fs-15);
}
.btn-link .arrow{transition:transform var(--t),color var(--t);}
.btn-link:hover{color:var(--c-accent);}
.btn-link:hover .arrow{transform:translateX(4px);}
.btn-group{display:flex;flex-wrap:wrap;gap:12px;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;line-height:18px;font-weight:600;
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--c-primary-50);color:var(--c-primary);
}
.badge-accent{background:var(--c-accent-50);color:var(--c-accent-700);}
.badge-teal{background:var(--c-teal-50);color:var(--c-teal);}
.badge-plain{background:var(--c-surface-2);color:var(--c-text-2);}

/* 卡片 */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);padding:var(--sp-4);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200);}
.card-title{font-size:var(--fs-17);font-weight:700;margin-bottom:8px;transition:color var(--t);}
a:hover .card-title{color:var(--c-primary);}
.card-text{font-size:14px;line-height:1.7;color:var(--c-text-2);}
.media{border-radius:var(--r-sm);overflow:hidden;background:var(--c-surface-2);}
.media img{width:100%;height:100%;object-fit:cover;}
.ratio-16x9{aspect-ratio:16/9;}
.ratio-4x3{aspect-ratio:4/3;}
.figure-caption{font-size:12px;color:var(--c-text-3);margin-top:8px;}

/* Hero */
.hero{padding:56px 0 24px;}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.hero-copy{grid-column:span 6;}
.hero-visual{grid-column:span 6;position:relative;}
h1{font-size:var(--fs-40);line-height:1.22;letter-spacing:-.02em;margin-bottom:18px;}
.hero-sub{font-size:18px;line-height:1.75;color:var(--c-text-2);margin-bottom:26px;max-width:520px;}
.hero-actions{margin-bottom:28px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 22px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);font-weight:600;}
.trust-item svg{width:18px;height:18px;flex:0 0 auto;}
.hero-media{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);
  border:1px solid var(--c-line);background:#fff;
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.float-stat{
  position:absolute;right:-12px;bottom:-22px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:16px 20px;min-width:180px;
}
.float-stat .num{font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums;}
.float-stat .label{font-size:13px;color:var(--c-text-2);margin-top:4px;}

/* 价值主张 */
.value-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start;}
.value-left{grid-column:span 5;}
.value-right{grid-column:span 7;display:flex;flex-direction:column;}
.value-item{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid var(--c-line);}
.value-item:first-child{padding-top:0;}
.value-item:last-child{border-bottom:none;padding-bottom:0;}
.value-num{
  font-size:22px;font-weight:700;color:var(--c-primary-200);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.value-item h3{font-size:var(--fs-17);margin-bottom:6px;}
.value-item p{font-size:14px;color:var(--c-text-2);line-height:1.7;margin:0;}

/* 功能分组 */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.tab{
  padding:9px 18px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;color:var(--c-text-2);font-size:14px;font-weight:600;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.tab:hover{border-color:var(--c-primary-200);color:var(--c-primary);}
.tab.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.tab-panel{display:none;}
.tab-panel.is-active{display:block;}
.feature-row{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center;}
.feature-row + .feature-row{margin-top:56px;}
.feature-media{grid-column:span 5;}
.feature-body{grid-column:span 7;}
.feature-row.reverse .feature-media{grid-column:span 5;order:2;}
.feature-row.reverse .feature-body{grid-column:span 7;order:1;}
.feature-list{margin-top:18px;display:flex;flex-direction:column;gap:18px;}
.feature-list li{display:grid;grid-template-columns:24px 1fr;gap:14px;}
.feature-list svg{width:24px;height:24px;margin-top:2px;}
.feature-list h4{font-size:16px;font-weight:600;margin-bottom:2px;}
.feature-list p{font-size:14px;color:var(--c-text-2);margin:0;line-height:1.7;}

/* 使用场景 */
.scene-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.scene-card{grid-column:span 4;}
.scene-card.wide{grid-column:span 8;}
.steps{margin-top:14px;display:flex;flex-direction:column;gap:0;}
.step{display:grid;grid-template-columns:28px 1fr;gap:12px;position:relative;padding-bottom:14px;}
.step:last-child{padding-bottom:0;}
.step:not(:last-child)::before{
  content:"";position:absolute;left:13px;top:26px;bottom:0;width:1px;background:var(--c-line-2);
}
.step-dot{
  width:26px;height:26px;border-radius:50%;background:var(--c-primary-50);color:var(--c-primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--c-primary-200);position:relative;z-index:1;
}
.step p{font-size:13px;color:var(--c-text-2);margin:0;line-height:1.65;}
.scene-card .media{margin-bottom:16px;}

/* 数据带 */
.stat-band{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:32px;margin-bottom:40px;
}
.stat-band .num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-band .unit{font-size:14px;color:var(--c-text-2);margin-top:8px;}

/* 案例 */
.case-row{
  display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.case-row:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.case-row + .case-row{margin-top:24px;}
.case-media{grid-column:span 5;}
.case-body{grid-column:span 7;}
.case-body h3{font-size:var(--fs-20);margin:12px 0 10px;}
.case-meta{display:flex;gap:14px;font-size:13px;color:var(--c-text-3);margin-top:14px;}

/* 内容列表 */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:24px;}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.filter{
  padding:8px 16px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-text-2);
  transition:border-color var(--t),color var(--t),background var(--t);
}
.filter:hover{border-color:var(--c-primary-200);color:var(--c-primary);background:var(--c-primary-50);}
.news-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.news-lead{grid-column:span 7;}
.news-lead .media{margin-bottom:18px;}
.news-lead h3{font-size:var(--fs-24);margin:12px 0 10px;}
.news-side{grid-column:span 5;display:flex;flex-direction:column;}
.news-mini{
  display:grid;grid-template-columns:96px 1fr;gap:14px;
  padding:16px 0;border-bottom:1px solid var(--c-line);
  transition:opacity var(--t);
}
.news-mini:first-child{padding-top:0;}
.news-mini:last-child{border-bottom:none;padding-bottom:0;}
.news-mini:hover .news-mini-title{color:var(--c-primary);}
.news-mini .thumb{border-radius:var(--r-xs);overflow:hidden;background:var(--c-surface-2);}
.news-mini .thumb img{width:96px;height:64px;object-fit:cover;}
.news-mini-title{
  font-size:15px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t);
}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3);margin-top:10px;}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line-2);}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:48px 24px;background:#fff;border:1px dashed var(--c-line-2);
  border-radius:var(--r-md);
}
.empty-state svg{width:96px;height:96px;color:var(--c-line-2);margin-bottom:16px;}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:18px;}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:32px 28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.price-card:hover{box-shadow:var(--sh-3);border-color:var(--c-primary-200);}
.price-card.featured{
  border:1.5px solid var(--c-primary);transform:scale(1.02) translateY(-4px);
  box-shadow:var(--sh-3);position:relative;
}
.price-name{font-size:var(--fs-20);font-weight:700;margin-bottom:6px;}
.price-desc{font-size:13px;color:var(--c-text-2);margin-bottom:20px;}
.price-value{display:flex;align-items:baseline;gap:6px;margin-bottom:6px;}
.price-value .amount{font-size:40px;font-weight:700;color:var(--c-primary);line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.price-value .unit{font-size:14px;color:var(--c-text-2);}
.price-fit{font-size:13px;color:var(--c-text-3);margin-bottom:22px;}
.price-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;flex:1;}
.price-list li{display:grid;grid-template-columns:18px 1fr;gap:10px;font-size:15px;color:var(--c-text-2);line-height:1.6;}
.price-list svg{width:18px;height:18px;margin-top:3px;color:var(--c-teal);}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);margin-top:12px;overflow:hidden;}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;background:none;border:none;text-align:left;cursor:pointer;
  font-size:var(--fs-17);font-weight:600;color:var(--c-text);transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  width:32px;height:32px;flex:0 0 auto;border-radius:50%;background:var(--c-primary-50);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),background var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-accent-50);color:var(--c-accent-700);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.2,.7,.3,1);
}
.faq-a-inner{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--c-text-2);}

/* 底部 CTA */
.cta-banner{
  border-radius:var(--r-xl);overflow:hidden;position:relative;
  background-image:linear-gradient(rgba(20,60,107,.62),rgba(20,60,107,.62)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:56px 48px;color:#fff;margin-bottom:56px;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-banner h2{font-size:var(--fs-30);margin-bottom:10px;}
.cta-banner p{font-size:15px;color:rgba(255,255,255,.86);max-width:560px;margin:0;}

/* 页脚 */
.site-footer{
  background:#143C6B;color:#fff;border-radius:var(--r-xl) var(--r-xl) 0 0;
  padding:64px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand-main{font-size:16px;font-weight:700;}
.footer-brand-sub{font-size:11px;color:rgba(255,255,255,.6);letter-spacing:.06em;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:16px;}
.footer-contact{font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact span{display:block;margin-bottom:6px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.72);
  padding:5px 0;transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

@media (max-width:1199px){
  .hero-copy,h1{font-size:34px;}
  .feature-row{gap:32px;}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy,.hero-visual{grid-column:span 12;}
  .hero{padding:40px 0 16px;}
  h1{font-size:32px;}
  .section{padding:var(--sp-8) 0;}
  .value-left,.value-right{grid-column:span 12;}
  .value-right{margin-top:24px;}
  .feature-row{grid-template-columns:1fr;gap:24px;}
  .feature-media,.feature-body,.feature-row.reverse .feature-media,.feature-row.reverse .feature-body{grid-column:span 12;order:0;}
  .scene-card,.scene-card.wide{grid-column:span 12;}
  .stat-band{grid-template-columns:repeat(3,1fr);padding:24px;}
  .stat-band .num{font-size:28px;}
  .case-media,.case-body{grid-column:span 12;}
  .news-lead,.news-side{grid-column:span 12;}
  .price-grid{grid-template-columns:1fr;gap:20px;}
  .price-card.featured{transform:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-banner{padding:40px 28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-wrap{padding:0 20px;top:10px;}
  h1{font-size:28px;line-height:1.3;}
  .hero-sub{font-size:16px;}
  .h2{font-size:24px;}
  .section{padding:var(--sp-7) 0;}
  .section-head{margin-bottom:32px;}
  .btn{width:100%;}
  .btn-group{width:100%;}
  .hero-actions .btn-group{flex-direction:column;}
  .float-stat{position:static;margin-top:16px;width:100%;}
  .stat-band{grid-template-columns:1fr;gap:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand{order:2;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-inner{flex-direction:column;align-items:stretch;text-align:center;}
  .faq-q{font-size:16px;}
}
@media (max-width:480px){
  .card{padding:20px;}
  h1{font-size:28px;}
  .cta-banner{padding:32px 22px;border-radius:var(--r-lg);}
  .eyebrow{font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .card:hover,.case-row:hover,.price-card:hover,.btn:hover{transform:none;}
}

/* roulang page: article */
:root{
  --c-primary:#1B4F8C;
  --c-primary-700:#143C6B;
  --c-primary-50:#EDF3FB;
  --c-primary-200:#C4D8EF;
  --c-accent:#FF7A2F;
  --c-accent-700:#E4631A;
  --c-accent-50:#FFF3EA;
  --c-teal:#17A08B;
  --c-teal-50:#E9F7F4;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#EEF3FA;
  --c-text:#16202E;
  --c-text-2:#5A6875;
  --c-text-3:#8B97A3;
  --c-line:#E4EAF3;
  --c-line-2:#D3DCE9;
  --c-success:#1F9D62;
  --c-warning:#D98B12;
  --c-error:#D9453C;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,74,.05);
  --sh-2:0 6px 18px -8px rgba(16,42,74,.12);
  --sh-3:0 18px 40px -16px rgba(16,42,74,.18);
  --t:220ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 20px 6px;
  background:linear-gradient(180deg,rgba(246,248,252,.97) 68%,rgba(246,248,252,0));
}
.nav{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:14px;
  padding:10px 14px 10px 18px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  transition:box-shadow var(--t),background var(--t);
}
.nav.is-scrolled{box-shadow:var(--sh-3);background:rgba(255,255,255,.94)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.4px}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:2.4px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:9px 15px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  color:var(--c-text-2);white-space:nowrap;transition:background var(--t),color var(--t);
}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.nav-link.is-active{background:var(--c-primary);color:#fff}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;margin-left:auto;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,42,74,.4);opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:308px;max-width:86vw;background:#fff;
  border-radius:var(--r-lg) 0 0 var(--r-lg);box-shadow:var(--sh-3);
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  z-index:80;padding:24px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{font-size:15px;font-weight:700;color:var(--c-text);padding:0 12px 12px;border-bottom:1px solid var(--c-line);margin-bottom:12px}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--c-text-2);transition:background var(--t),color var(--t);
}
.drawer-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-link.is-active{background:var(--c-primary-50);color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary)}
.drawer-cta{margin-top:16px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform var(--t),background var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{border-color:var(--c-primary-200);color:var(--c-primary);background:#fff}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:14px}
.btn-link .arrow{transition:transform var(--t),color var(--t)}
.btn-link:hover .arrow{transform:translateX(4px);color:var(--c-accent)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);
  padding:4px 12px;font-size:12px;line-height:1.5;font-weight:600;
}
.badge-cat{background:var(--c-primary-50);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-50);color:var(--c-accent-700)}
.badge-teal{background:var(--c-teal-50);color:var(--c-teal)}

/* ---------- article head ---------- */
.article-hero{padding:34px 0 6px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;list-style:none;font-size:14px;color:var(--c-text-2)}
.breadcrumb li{display:flex;align-items:center;min-width:0}
.breadcrumb li+li::before{content:"/";margin:0 10px;color:var(--c-line-2)}
.breadcrumb a{color:var(--c-text-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-primary)}
.crumb-current{color:var(--c-text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  margin-top:20px;font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.45;
  letter-spacing:.2px;color:var(--c-text);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;
  font-size:14px;color:var(--c-text-2);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta time{font-variant-numeric:tabular-nums;color:var(--c-text-3)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-line-2)}
.article-cover{
  margin-top:26px;border-radius:var(--r-md);overflow:hidden;background:var(--c-surface-2);
  aspect-ratio:16/9;box-shadow:var(--sh-2);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.cover-caption{font-size:13px;color:var(--c-text-3);margin-top:10px;text-align:center}

/* ---------- article layout ---------- */
.article-body{padding-top:40px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start}
.article-main{min-width:0}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}

/* ---------- prose ---------- */
.prose{font-size:17px;line-height:1.9;color:var(--c-text)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{
  position:relative;font-size:20px;font-weight:600;line-height:1.5;
  margin:2em 0 .8em;padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:var(--r-pill);background:var(--c-primary);
}
.prose h3{font-size:17px;font-weight:700;margin:1.6em 0 .6em;line-height:1.6}
.prose h4{font-size:16px;font-weight:700;margin:1.4em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:22px}
.prose li{margin-bottom:10px}
.prose ul{list-style:none;padding-left:18px}
.prose ul li{position:relative;padding-left:16px}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--c-primary);
}
.prose ol{list-style:decimal;padding-left:24px}
.prose ol li::marker{color:var(--c-primary);font-weight:700}
.prose blockquote{
  margin:1.4em 0;padding:16px 20px;background:var(--c-primary-50);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-text-2);
}
.prose img{border-radius:var(--r-sm);margin:1.4em auto;height:auto}
.prose figure{margin:1.4em 0}
.prose figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--c-line);padding:12px 16px;text-align:left}
.prose th{background:var(--c-surface-2);font-weight:600}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--c-accent);text-decoration:none}
.prose code{background:var(--c-surface-2);padding:2px 6px;border-radius:6px;font-size:14px}
.prose pre{background:var(--c-surface-2);padding:16px;border-radius:var(--r-sm);overflow-x:auto;margin:1.4em 0}
.prose pre code{background:none;padding:0}
.prose hr{border:none;border-top:1px solid var(--c-line);margin:2em 0}

/* ---------- empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:56px 24px;
}
.empty-mark{
  width:64px;height:64px;border-radius:var(--r-md);background:var(--c-surface-2);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.empty-state h2{font-size:19px;font-weight:700}
.empty-state p{font-size:14px;color:var(--c-text-2);max-width:420px}

/* ---------- tags & footer actions ---------- */
.tag-block{margin-top:38px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag-block h3{font-size:14px;font-weight:700;color:var(--c-text-2);margin-bottom:14px}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-surface-2);font-size:13px;color:var(--c-text-2);
  transition:background var(--t),color var(--t);
}
.tag:hover{background:var(--c-primary-50);color:var(--c-primary)}
.article-foot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- sidebar ---------- */
.side-sticky{position:sticky;top:104px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:22px;margin-bottom:20px;
}
.side-card h2{font-size:15px;font-weight:700;margin-bottom:14px}
.side-list{list-style:none;display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:block;padding:10px 12px;border-radius:var(--r-sm);font-size:14px;
  color:var(--c-text-2);transition:background var(--t),color var(--t);
}
.side-list a:hover{background:var(--c-primary-50);color:var(--c-primary)}
.side-card p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin-bottom:16px}
.side-facts{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--c-text-2)}
.side-facts span{display:flex;align-items:center;gap:8px}
.side-facts i{width:6px;height:6px;border-radius:50%;background:var(--c-teal);flex:0 0 auto}

/* ---------- related ---------- */
.related{padding:64px 0 0}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.related-head h2{font-size:24px;font-weight:700}
.related-head p{font-size:14px;color:var(--c-text-2);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200)}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.rel-title{
  font-size:17px;font-weight:600;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-text{font-size:14px;color:var(--c-text-2);line-height:1.75}
.rel-card:hover .rel-title{color:var(--c-primary)}

/* ---------- bottom cta ---------- */
.bottom-cta{
  margin-top:72px;border-radius:var(--r-xl);overflow:hidden;position:relative;
  background-color:var(--c-primary-700);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.bottom-cta::before{content:"";position:absolute;inset:0;background:rgba(20,60,107,.64)}
.bottom-cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:28px;padding:46px 40px;color:#fff;
}
.bottom-cta h2{font-size:28px;font-weight:700;line-height:1.4;margin-bottom:10px}
.bottom-cta p{font-size:15px;color:rgba(255,255,255,.82);max-width:560px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:76px;background:#143C6B;color:#fff;
  border-radius:var(--r-xl) var(--r-xl) 0 0;padding:56px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand-main{display:block;font-size:16px;font-weight:700;line-height:1.2}
.footer-brand-sub{display:block;font-size:11px;color:rgba(255,255,255,.6);letter-spacing:2.4px;line-height:1.2}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:320px;margin-bottom:16px}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;color:rgba(255,255,255,.62)}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;transition:color var(--t)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-link{padding:9px 12px;font-size:14px}
}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:1fr;gap:30px}
  .side-sticky{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand-col{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .site-header{padding:10px 14px 4px}
  .nav{padding:9px 12px 9px 14px}
  .article-hero{padding:24px 0 4px}
  .article-body{padding-top:28px}
  .prose{font-size:16px;line-height:1.85}
  .prose table{display:block;overflow-x:auto;white-space:nowrap}
  .related{padding-top:48px}
  .bottom-cta{margin-top:56px}
  .bottom-cta-inner{flex-direction:column;align-items:flex-start;padding:34px 26px}
  .bottom-cta h2{font-size:23px}
  .btn-block-mobile{width:100%}
  .site-footer{margin-top:56px;padding:44px 0 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .crumb-current{max-width:180px}
}
@media (max-width:560px){
  .related-grid{grid-template-columns:1fr}
  .side-card{padding:20px}
  .empty-state{padding:44px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;animation-iteration-count:1!important;
    transition-duration:.01ms!important;scroll-behavior:auto!important;
  }
  .rel-card:hover,.btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B4F8C;
  --c-primary-700:#143C6B;
  --c-primary-50:#EDF3FB;
  --c-primary-200:#C4D8EF;
  --c-accent:#FF7A2F;
  --c-accent-700:#E4631A;
  --c-accent-50:#FFF3EA;
  --c-teal:#17A08B;
  --c-teal-50:#E9F7F4;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#EEF3FA;
  --c-text:#16202E;
  --c-text-2:#5A6875;
  --c-text-3:#8B97A3;
  --c-line:#E4EAF3;
  --c-line-2:#D3DCE9;
  --c-success:#1F9D62;
  --c-warn:#D98B12;
  --c-error:#D9453C;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,74,.05);
  --sh-2:0 6px 18px -8px rgba(16,42,74,.12);
  --sh-3:0 18px 40px -16px rgba(16,42,74,.18);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:28px;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-primary-50);color:var(--c-primary-700)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.nav{
  position:sticky;
  top:16px;
  z-index:80;
  width:min(1200px,calc(100% - 48px));
  margin:16px auto 0;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px 10px 18px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  transition:box-shadow var(--t),background var(--t);
}
.nav.is-scrolled{box-shadow:var(--sh-3);background:rgba(255,255,255,.92)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-700));
  border-radius:12px;
  box-shadow:var(--sh-1);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap}
.nav-link{
  display:inline-flex;align-items:center;
  height:40px;padding:0 16px;
  font-size:15px;font-weight:600;color:var(--c-text-2);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:background var(--t),color var(--t);
}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary-700)}
.nav-link.is-active{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.nav-cta{flex:0 0 auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  background:#fff;
  position:relative;
  margin-left:auto;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--c-primary);
  border-radius:2px;transform:translateX(-50%);
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,54,.42);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:88vw;
  background:#fff;border-radius:var(--r-lg) 0 0 var(--r-lg);
  box-shadow:var(--sh-3);padding:28px 20px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(104%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  z-index:100;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-title{font-size:13px;color:var(--c-text-3);letter-spacing:1px;margin-bottom:6px}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--c-text-2);
  transition:background var(--t),color var(--t);
}
.drawer-link:hover{background:var(--c-primary-50);color:var(--c-primary-700)}
.drawer-link.is-active{background:var(--c-primary-50);color:var(--c-primary-700);box-shadow:inset 3px 0 0 var(--c-primary)}
.drawer-cta{margin-top:16px;width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  transition:transform var(--t),background var(--t),box-shadow var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-accent:hover{background:var(--c-accent-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:var(--c-primary-50)}
.btn-white{background:#fff;color:var(--c-primary-700)}
.btn-white:hover{background:var(--c-primary-50);transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:15px;font-weight:600;
}
.btn-link svg{transition:transform var(--t)}
.btn-link:hover{color:var(--c-accent)}
.btn-link:hover svg{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:18px;font-weight:600;
}
.badge-primary{background:var(--c-primary-50);color:var(--c-primary-700)}
.badge-accent{background:var(--c-accent-50);color:var(--c-accent-700)}
.badge-teal{background:var(--c-teal-50);color:var(--c-teal)}

/* ============ Hero ============ */
.hero{padding:56px 0 0}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:18px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--c-line-2)}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb [aria-current="page"]{color:var(--c-text-3)}
.hero h1{
  font-size:40px;line-height:52px;font-weight:700;letter-spacing:-.5px;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);position:relative}
.hero-sub{font-size:17px;line-height:30px;color:var(--c-text-2);max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 22px}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.hero-trust svg{width:18px;height:18px;color:var(--c-teal);flex:0 0 18px}
.hero-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);border:1px solid var(--c-line)}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(27,79,140,0) 45%,rgba(20,60,107,.72) 100%);
}
.hero-figure figcaption{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:2;
  color:#fff;font-size:13px;line-height:20px;
}
.hero-float{
  position:absolute;right:-8px;bottom:56px;z-index:3;
  background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-3);
  padding:14px 18px;border:1px solid var(--c-line);
}
.hero-float b{display:block;font-size:26px;line-height:1;color:var(--c-primary);font-variant-numeric:tabular-nums;font-weight:700}
.hero-float span{font-size:12px;color:var(--c-text-3)}

/* ============ 通用板块 ============ */
.section{padding:96px 0 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-50);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-head h2{font-size:30px;line-height:42px;font-weight:700;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--c-text-2)}

/* ============ 主体：锚点 + 长文 ============ */
.layout-aside{display:grid;grid-template-columns:250px 1fr;gap:56px;align-items:start}
.anchor-nav{position:sticky;top:100px}
.anchor-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);
}
.anchor-title{font-size:13px;font-weight:700;color:var(--c-text-3);letter-spacing:1px;margin-bottom:12px}
.anchor-nav a{
  display:block;padding:9px 12px;border-radius:var(--r-xs);
  font-size:14px;color:var(--c-text-2);border-left:3px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.anchor-nav a:hover{background:var(--c-primary-50);color:var(--c-primary-700);border-left-color:var(--c-primary-200)}
.anchor-nav a.is-current{color:var(--c-primary-700);border-left-color:var(--c-primary);background:var(--c-primary-50);font-weight:600}
.anchor-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);line-height:20px}

.article-stack{display:flex;flex-direction:column;gap:40px}
.doc-block{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:32px;box-shadow:var(--sh-1);scroll-margin-top:110px;
}
.doc-block h2{
  font-size:22px;line-height:32px;font-weight:700;
  padding-left:14px;border-left:4px solid var(--c-primary);border-radius:2px;
  margin-bottom:16px;
}
.doc-block p{color:var(--c-text-2);margin-bottom:14px}
.doc-block p:last-child{margin-bottom:0}
.doc-block strong{color:var(--c-text)}
.doc-block a{color:var(--c-primary);border-bottom:1px solid var(--c-primary-200)}
.doc-block a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-sm)}
.split-fig{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1)}
.split-fig figcaption{font-size:12px;color:var(--c-text-3);padding:10px 4px 0}
.split h3{font-size:20px;line-height:30px;margin-bottom:12px}
.split p{color:var(--c-text-2);font-size:15px;margin-bottom:12px}

/* 数据卡 */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200)}
.stat-num{font-size:32px;line-height:1.1;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-num i{font-style:normal;font-size:14px;font-weight:600;color:var(--c-text-2);margin-left:4px}
.stat-label{font-size:14px;color:var(--c-text-2);margin-top:8px}

/* 要点双列 */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;margin-top:8px}
.check-item{display:flex;gap:10px;align-items:flex-start}
.check-item svg{width:20px;height:20px;flex:0 0 20px;color:var(--c-teal);margin-top:3px}
.check-item b{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.check-item span{font-size:14px;color:var(--c-text-2)}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);
  margin-top:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:var(--c-primary-200)}
.faq-item.is-open{border-color:var(--c-primary-200);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:8px 20px;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-text);
}
.faq-icon{
  width:32px;height:32px;flex:0 0 32px;border-radius:50%;
  background:var(--c-primary-50);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;line-height:1;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),background var(--t),color var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{padding:4px 20px 20px;font-size:15px;line-height:26px;color:var(--c-text-2)}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  background:var(--c-primary-700);
  background-image:linear-gradient(120deg,rgba(20,60,107,.92),rgba(27,79,140,.55)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:48px;margin-top:96px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band h2{font-size:30px;line-height:42px;font-weight:700;margin-bottom:10px}
.cta-band p{font-size:15px;line-height:26px;color:rgba(255,255,255,.86);max-width:560px}
.cta-band .btn{flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:56px;
  background:#0F2E52;color:#fff;
  border-radius:var(--r-xl) var(--r-xl) 0 0;
  padding:56px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-brand-main{display:block;font-size:17px;font-weight:700}
.footer-brand-sub{display:block;font-size:11px;letter-spacing:2px;color:rgba(255,255,255,.6)}
.footer-desc{font-size:14px;line-height:24px;color:rgba(255,255,255,.72);max-width:320px;margin-bottom:18px}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-col h3{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:6px 0;transition:color var(--t),transform var(--t)}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  margin-top:40px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-links{gap:2px}
  .nav-link{padding:0 12px;font-size:14px}
  .layout-aside{grid-template-columns:220px 1fr;gap:36px}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:block}
  .hero{padding-top:36px}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:34px;line-height:46px}
  .hero-sub{max-width:none}
  .layout-aside{grid-template-columns:1fr;gap:28px}
  .anchor-nav{position:static}
  .anchor-card{padding:14px}
  .anchor-nav .anchor-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}
  .anchor-nav a{white-space:nowrap;border-left:0;border-bottom:2px solid transparent;border-radius:var(--r-pill);background:var(--c-surface-2)}
  .anchor-nav a.is-current{border-left:0;border-bottom-color:transparent}
  .anchor-note{display:none}
  .section{padding-top:72px}
  .stat-row{grid-template-columns:1fr 1fr}
  .cta-band{margin-top:72px;flex-direction:column;align-items:flex-start;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav{width:calc(100% - 32px);margin-top:12px;top:12px;padding:8px 10px 8px 14px}
  .hero h1{font-size:28px;line-height:38px}
  .hero-sub{font-size:15px;line-height:26px}
  .hero-actions .btn{width:100%}
  .hero-float{right:12px;bottom:44px;padding:10px 14px}
  .hero-float b{font-size:20px}
  .section{padding-top:56px}
  .section-head h2{font-size:24px;line-height:34px}
  .doc-block{padding:22px}
  .doc-block h2{font-size:19px;line-height:28px}
  .split{grid-template-columns:1fr;gap:20px}
  .stat-row{grid-template-columns:1fr;gap:16px}
  .check-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:8px 16px}
  .faq-a-inner{padding:4px 16px 18px}
  .cta-band{padding:28px 22px;border-radius:var(--r-lg)}
  .cta-band h2{font-size:24px;line-height:34px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand-col{order:2}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:480px){
  .hero h1{font-size:26px;line-height:36px}
  .doc-block{padding:20px}
  .stat-num{font-size:28px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .stat-card:hover,.btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B4F8C;
  --c-primary-700:#143C6B;
  --c-primary-50:#EDF3FB;
  --c-primary-200:#C4D8EF;
  --c-accent:#FF7A2F;
  --c-accent-700:#E4631A;
  --c-accent-50:#FFF3EA;
  --c-teal:#17A08B;
  --c-teal-50:#E9F7F4;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#EEF3FA;
  --c-text:#16202E;
  --c-text-2:#5A6875;
  --c-text-3:#8B97A3;
  --c-line:#E4EAF3;
  --c-line-2:#D3DCE9;
  --c-success:#1F9D62;
  --c-warning:#D98B12;
  --c-error:#D9453C;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,74,.05);
  --sh-2:0 6px 18px -8px rgba(16,42,74,.12);
  --sh-3:0 18px 40px -16px rgba(16,42,74,.18);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:28px;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px;margin:0 auto}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:16px;z-index:80;margin-top:16px}
.nav{
  display:flex;align-items:center;gap:20px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  padding:10px 14px 10px 18px;
  transition:box-shadow var(--t),background var(--t);
}
.nav.is-scrolled{box-shadow:var(--sh-3);background:rgba(255,255,255,.92)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--c-primary);
  display:grid;place-items:center;
  box-shadow:0 6px 14px -8px rgba(27,79,140,.9);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--c-text-3)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:10px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--c-text-2);
  transition:background var(--t),color var(--t);
  white-space:nowrap;
}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.nav-link.is-active{background:var(--c-primary);color:#fff}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:var(--r-sm);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary);border-radius:2px;
  transition:transform var(--t),top var(--t),opacity var(--t);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.mobile-drawer{
  position:fixed;top:88px;left:16px;right:16px;z-index:79;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-3);
  padding:12px;display:none;
  transform:translateY(-10px);opacity:0;
  transition:transform 260ms cubic-bezier(.2,.7,.3,1),opacity 260ms cubic-bezier(.2,.7,.3,1);
}
.mobile-drawer.is-open{display:block;transform:translateY(0);opacity:1}
.mobile-drawer a{
  display:flex;align-items:center;height:48px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--c-text-2);
  transition:background var(--t),color var(--t);
}
.mobile-drawer a:hover{background:var(--c-primary-50);color:var(--c-primary)}
.mobile-drawer a.is-active{background:var(--c-primary-50);color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);border-radius:var(--r-sm)}
.mobile-drawer .drawer-cta{margin-top:8px}
.mobile-drawer .drawer-cta a{background:var(--c-primary);color:#fff;justify-content:center;height:48px}
.mobile-drawer .drawer-cta a:hover{background:var(--c-primary-700);color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-primary:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent)}
.btn-accent:hover{background:var(--c-accent-700);border-color:var(--c-accent-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50)}
.btn-light{background:#fff;color:var(--c-primary);border-color:#fff}
.btn-light:hover{background:var(--c-primary-50);transform:translateY(-1px)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--c-primary);
  font-weight:600;font-size:15px;background:none;border:0;padding:0;cursor:pointer;
  transition:color var(--t);
}
.btn-link svg{transition:transform var(--t)}
.btn-link:hover{color:var(--c-accent)}
.btn-link:hover svg{transform:translateX(4px)}
.btn-group{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:18px;font-weight:600;
  background:var(--c-primary-50);color:var(--c-primary);
}
.badge-accent{background:var(--c-accent-50);color:var(--c-accent-700)}
.badge-teal{background:var(--c-teal-50);color:var(--c-teal)}
.badge-soft{background:var(--c-surface-2);color:var(--c-text-2)}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section-tight{padding-top:0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);margin-bottom:10px;
}
.section-head .eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--c-accent)}
h2{font-size:30px;line-height:42px;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:30px;font-weight:700}
h4{font-size:17px;line-height:26px;font-weight:700}
.lead{font-size:16px;line-height:28px;color:var(--c-text-2)}
.muted{color:var(--c-text-2)}
.small{font-size:13px;line-height:20px;color:var(--c-text-3)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);margin-bottom:24px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--c-text-3)}
.breadcrumb a{color:var(--c-text-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb [aria-current="page"]{color:var(--c-text);font-weight:600}

/* ---------- Hero ---------- */
.hero{padding:56px 0 24px}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero h1{font-size:40px;line-height:52px;font-weight:700;letter-spacing:-.02em;margin-bottom:18px}
.hero h1 .kw{color:var(--c-primary)}
.hero-sub{font-size:18px;line-height:30px;color:var(--c-text-2);margin-bottom:28px;max-width:32em}
.hero .btn-group{margin-bottom:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:20px 28px}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);font-weight:600}
.trust-row svg{width:18px;height:18px;stroke:var(--c-teal);flex:0 0 auto}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-3);border:1px solid var(--c-line);background:var(--c-surface);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.floating-stat{
  position:absolute;right:18px;bottom:18px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--sh-3);
  padding:14px 18px;min-width:150px;
}
.floating-stat .num{font-size:26px;line-height:32px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.floating-stat .txt{font-size:12px;line-height:18px;color:var(--c-text-3)}

/* ---------- 数据小卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200)}
.stat-card .num{
  font-size:34px;line-height:42px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-bottom:6px;
}
.stat-card h3{font-size:17px;line-height:26px;margin-bottom:8px}
.stat-card p{font-size:14px;line-height:24px;color:var(--c-text-2)}

/* ---------- 时间轴 + 图卡矩阵 ---------- */
.timeline-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.timeline{position:relative}
.timeline::before{
  content:"";position:absolute;left:13px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--c-primary-200),var(--c-line));
  border-radius:2px;
}
.tl-item{position:relative;padding-left:44px;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-primary);
  color:var(--c-primary);font-size:12px;font-weight:700;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 4px rgba(27,79,140,.06);
}
.tl-item h3{font-size:17px;line-height:26px;margin-bottom:6px}
.tl-item p{font-size:14px;line-height:24px;color:var(--c-text-2)}
.tl-item .badge{margin-top:10px}
.media-matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.mcard{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.mcard img{width:100%;aspect-ratio:4/3;object-fit:cover}
.mcard figcaption{padding:14px 16px;font-size:13px;line-height:20px;color:var(--c-text-2)}
.mcard:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200)}
.media-matrix .mcard:nth-child(2),
.media-matrix .mcard:nth-child(4){transform:translateY(26px)}
.media-matrix .mcard:nth-child(2):hover,
.media-matrix .mcard:nth-child(4):hover{transform:translateY(20px)}

/* ---------- 双列要点 ---------- */
.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.point-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200)}
.point-card .ico{
  width:40px;height:40px;border-radius:var(--r-sm);
  background:var(--c-primary-50);display:grid;place-items:center;margin-bottom:14px;
}
.point-card .ico svg{width:20px;height:20px;stroke:var(--c-primary)}
.point-card h3{font-size:17px;line-height:26px;margin-bottom:8px}
.point-card p{font-size:14px;line-height:24px;color:var(--c-text-2)}

/* ---------- 引用块 ---------- */
.quote{
  background:var(--c-primary-50);border-left:3px solid var(--c-primary);
  border-radius:var(--r-sm);padding:18px 22px;margin-top:24px;
  font-size:15px;line-height:26px;color:var(--c-primary-700);
}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);
  margin-top:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.is-open{border-color:var(--c-primary-200);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;line-height:26px;font-weight:600;color:var(--c-text);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  background:var(--c-primary-50);color:var(--c-primary);
  display:grid;place-items:center;font-size:18px;line-height:1;font-weight:600;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),background var(--t),color var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-accent-50);color:var(--c-accent-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.2,.7,.3,1)}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:26px;color:var(--c-text-2)}

/* ---------- CTA 横幅 ---------- */
.cta-wrap{padding:56px 0 0}
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--c-primary-700) url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  padding:56px;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,60,107,.92) 0%,rgba(20,60,107,.62) 60%,rgba(20,60,107,.45) 100%);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{color:#fff;font-size:30px;line-height:42px;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.82);font-size:15px;line-height:26px;max-width:44em}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:56px;background:var(--c-primary-700);color:#fff;
  border-radius:var(--r-xl) var(--r-xl) 0 0;padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-main{display:block;font-size:17px;font-weight:700;line-height:1.2}
.footer-brand-sub{display:block;font-size:11px;letter-spacing:.16em;color:rgba(255,255,255,.6)}
.footer-desc{font-size:14px;line-height:24px;color:rgba(255,255,255,.72);max-width:26em;margin-bottom:18px}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;line-height:20px;color:rgba(255,255,255,.62)}
.footer-col h3{font-size:15px;line-height:24px;font-weight:600;margin-bottom:16px;color:#fff}
.footer-col a{
  display:block;font-size:14px;line-height:22px;color:rgba(255,255,255,.72);
  padding:5px 0;transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;line-height:20px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{padding:10px 12px;font-size:14px}
  .hero h1{font-size:36px;line-height:48px}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav{padding:10px 12px 10px 16px}
  .hero{padding:40px 0 16px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:32px;line-height:44px}
  .section{padding:60px 0}
  .stat-grid{grid-template-columns:1fr 1fr}
  .timeline-layout{grid-template-columns:1fr;gap:36px}
  .media-matrix .mcard:nth-child(2),
  .media-matrix .mcard:nth-child(4){transform:none}
  .media-matrix .mcard:nth-child(2):hover,
  .media-matrix .mcard:nth-child(4):hover{transform:translateY(-4px)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand-col{grid-column:1 / -1;order:2}
  .cta-banner{padding:40px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .site-header{top:12px;margin-top:12px}
  .hero h1{font-size:28px;line-height:38px}
  h2{font-size:24px;line-height:34px}
  .hero-sub{font-size:16px;line-height:26px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .stat-grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .media-matrix{gap:16px}
  .btn-group{width:100%}
  .btn-group .btn{width:100%}
  .cta-banner{padding:32px 24px;border-radius:var(--r-lg)}
  .cta-inner h2{font-size:24px;line-height:34px}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .floating-stat{right:12px;bottom:12px;padding:12px 14px;min-width:132px}
}
@media (max-width:480px){
  .hero h1{font-size:28px}
  .stat-card,.point-card{padding:20px}
  .mobile-drawer{left:12px;right:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
  .stat-card:hover,.point-card:hover,.mcard:hover,.card:hover{transform:none !important}
}

/* roulang page: category3 */
:root{
  --c-primary:#1B4F8C;
  --c-primary-700:#143C6B;
  --c-primary-50:#EDF3FB;
  --c-primary-200:#C4D8EF;
  --c-accent:#FF7A2F;
  --c-accent-700:#E4631A;
  --c-accent-50:#FFF3EA;
  --c-teal:#17A08B;
  --c-teal-50:#E9F7F4;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#EEF3FA;
  --c-text:#16202E;
  --c-text-2:#5A6875;
  --c-text-3:#8B97A3;
  --c-line:#E4EAF3;
  --c-line-2:#D3DCE9;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,42,74,.05);
  --sh-2:0 6px 18px -8px rgba(16,42,74,.12);
  --sh-3:0 18px 40px -16px rgba(16,42,74,.18);
  --t:220ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.1px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px;margin:0 auto;padding:0 24px}

/* ---------- 悬浮胶囊导航 ---------- */
.nav{
  position:sticky;top:16px;z-index:60;
  width:calc(100% - 48px);max-width:1200px;margin:16px auto 0;
  display:flex;align-items:center;gap:24px;
  padding:10px 12px 10px 20px;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-2);
  transition:box-shadow var(--t),background var(--t);
}
.nav.is-scrolled{box-shadow:var(--sh-3);background:rgba(255,255,255,.92)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-sm);
  background:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-main{font-size:16px;font-weight:700}
.brand-sub{font-size:11px;letter-spacing:3px;color:var(--c-text-3)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--c-text-2);
  white-space:nowrap;transition:background var(--t),color var(--t);
}
.nav-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.nav-link.is-active{background:var(--c-primary);color:#fff}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:var(--r-pill);
  align-items:center;justify-content:center;background:var(--c-primary-50);
  transition:background var(--t);
}
.nav-toggle:hover{background:var(--c-primary-200)}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 移动抽屉 ---------- */
.nav-backdrop{
  position:fixed;inset:0;z-index:80;background:rgba(22,32,46,.36);
  opacity:0;pointer-events:none;transition:opacity var(--t);
}
.nav-backdrop.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:12px;right:12px;bottom:12px;z-index:90;
  width:min(300px,86vw);
  padding:20px;
  background:var(--c-surface);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;
  transform:translateX(calc(100% + 28px));
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.drawer.is-open{transform:translateX(0)}
.drawer-title{font-size:13px;font-weight:700;color:var(--c-text-3);letter-spacing:2px;margin-bottom:8px}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--c-text-2);
  border-left:3px solid transparent;
  transition:background var(--t),color var(--t);
}
.drawer-link:hover{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-link.is-active{background:var(--c-primary-50);color:var(--c-primary);border-left-color:var(--c-primary)}
.drawer .btn{margin-top:14px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:2px;color:var(--c-primary);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-accent)}
.section-title{font-size:30px;line-height:42px;margin-bottom:12px}
.section-desc{font-size:16px;line-height:28px;color:var(--c-text-2)}
.lead{font-size:17px;line-height:30px;color:var(--c-text-2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{border:1.5px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:var(--c-primary-50)}
.btn-white{background:#fff;color:var(--c-primary)}
.btn-white:hover{background:var(--c-primary-50)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;
  transition:color var(--t);
}
.btn-link::after{content:"→";transition:transform var(--t)}
.btn-link:hover{color:var(--c-accent)}
.btn-link:hover::after{transform:translateX(4px)}
.btn-group{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:18px;font-weight:600;
}
.badge-primary{background:var(--c-primary-50);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-50);color:var(--c-accent-700)}
.badge-teal{background:var(--c-teal-50);color:var(--c-teal)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- Hero ---------- */
.hero{padding:48px 0 0}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.breadcrumb{font-size:14px;color:var(--c-text-2);margin-bottom:18px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--c-text-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb [aria-current="page"]{color:var(--c-text-3)}
.hero h1{font-size:40px;line-height:52px;margin:16px 0 16px}
.hero-sub{font-size:17px;line-height:30px;color:var(--c-text-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;color:var(--c-text-2)}
.hero-trust li{display:flex;align-items:center;gap:8px}
.hero-trust li::before{
  content:"";width:16px;height:16px;border-radius:50%;
  background:var(--c-teal-50);border:1.5px solid var(--c-teal);
  display:inline-block;flex:0 0 auto;
}
.hero-media{position:relative}
.hero-media-frame{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);
  border:1px solid var(--c-line);
}
.hero-media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{
  position:absolute;right:-8px;bottom:-18px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:14px 20px;
  display:flex;align-items:baseline;gap:10px;
}
.hero-float strong{font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.hero-float span{font-size:13px;color:var(--c-text-2)}

/* ---------- 数据卡 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:24px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200)}
.stat-num{
  font-size:36px;line-height:44px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--c-text-2);margin-left:4px}
.stat-card h3{font-size:17px;line-height:26px;margin:6px 0 6px}
.stat-card p{font-size:14px;line-height:24px;color:var(--c-text-2);margin:0}

/* ---------- 表格 ---------- */
.table-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-card-head{padding:20px 24px;border-bottom:1px solid var(--c-line)}
.table-card-head h3{font-size:18px;line-height:28px;margin-bottom:4px}
.table-card-head p{font-size:14px;line-height:24px;color:var(--c-text-2);margin:0}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;min-width:760px;border-collapse:collapse}
caption{text-align:left;padding:0}
th,td{padding:14px 24px;text-align:left;font-size:15px;line-height:24px;border-bottom:1px solid var(--c-line)}
th{background:var(--c-surface-2);font-weight:700;font-size:14px;color:var(--c-text-2);white-space:nowrap}
td{color:var(--c-text-2)}
td:first-child{color:var(--c-text);font-weight:600}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:var(--c-primary-50)}

/* ---------- 双列点列 ---------- */
.point-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:40px}
.point-col h3{font-size:20px;line-height:30px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.point-col h3::before{
  content:"";width:4px;height:20px;border-radius:2px;background:var(--c-primary);flex:0 0 auto;
}
.point-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--c-line);
  font-size:15px;line-height:26px;color:var(--c-text-2);
}
.point-list li:last-child{border-bottom:0}
.point-list li strong{color:var(--c-text);font-weight:600}
.dot{
  width:22px;height:22px;flex:0 0 auto;margin-top:2px;border-radius:50%;
  background:var(--c-primary-50);border:1.5px solid var(--c-primary-200);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:var(--c-primary);
}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split--reverse .split-media{order:2}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-2)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-body h2{font-size:26px;line-height:38px;margin-bottom:14px}
.split-body p{color:var(--c-text-2);font-size:16px;line-height:28px}
.step-line{margin-top:24px;display:flex;flex-direction:column;gap:16px}
.step-item{display:flex;gap:14px;align-items:flex-start}
.step-no{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;
  background:var(--c-primary);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step-item h4{font-size:16px;line-height:26px;margin-bottom:2px}
.step-item p{font-size:14px;line-height:24px;color:var(--c-text-2);margin:0}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:24px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-200)}
.card h3{font-size:18px;line-height:28px;margin:14px 0 8px}
.card p{font-size:14px;line-height:24px;color:var(--c-text-2);margin:0}
.card-media{border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--c-line)}
.card-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.note{font-size:13px;line-height:20px;color:var(--c-text-3);margin-top:12px}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);
  margin-top:12px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.is-open{border-color:var(--c-primary-200);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;min-height:56px;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;line-height:26px;font-weight:600;text-align:left;color:var(--c-text);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  width:32px;height:32px;flex:0 0 auto;border-radius:50%;
  background:var(--c-primary-50);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:600;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),background var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-accent-50);color:var(--c-accent-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1)}
.faq-a p{padding:0 20px 18px;margin:0;font-size:15px;line-height:26px;color:var(--c-text-2)}

/* ---------- 底部 CTA ---------- */
.cta-wrap{padding:0 0 56px}
.cta-banner{
  border-radius:var(--r-xl);
  background-image:linear-gradient(rgba(20,60,107,.84),rgba(20,60,107,.84)),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  color:#fff;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-banner h2{font-size:30px;line-height:42px;margin-bottom:10px;color:#fff}
.cta-banner p{font-size:15px;line-height:26px;color:rgba(255,255,255,.82);margin:0;max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;background:#0F2E52;color:#fff;
  border-radius:var(--r-xl) var(--r-xl) 0 0;
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-main{display:block;font-size:17px;font-weight:700;line-height:1.2}
.footer-brand-sub{display:block;font-size:11px;letter-spacing:3px;color:rgba(255,255,255,.6)}
.footer-desc{font-size:14px;line-height:24px;color:rgba(255,255,255,.72);margin-bottom:16px}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-col h3{font-size:15px;line-height:24px;margin-bottom:14px;color:#fff}
.footer-col a{
  display:block;font-size:14px;line-height:32px;
  color:rgba(255,255,255,.72);transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links .nav-link{padding:0 12px;font-size:14px}
  .section{padding:72px 0}
  .hero h1{font-size:34px;line-height:46px}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:32px;line-height:44px}
  .split{grid-template-columns:1fr;gap:32px}
  .split--reverse .split-media{order:0}
  .point-cols{grid-template-columns:1fr;gap:32px}
  .grid-3{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand-col{grid-column:1 / -1;order:9}
  .cta-banner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  body{font-size:15px;line-height:26px}
  .container,.container-narrow{padding:0 20px}
  .nav{width:calc(100% - 32px);top:12px;margin-top:12px;padding:8px 10px 8px 14px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .hero{padding:28px 0 0}
  .hero h1{font-size:28px;line-height:38px}
  .hero-sub{font-size:16px;line-height:28px}
  .hero-actions .btn{width:100%}
  .hero-float{position:static;margin-top:16px;justify-content:center}
  .section-title{font-size:24px;line-height:34px}
  .split-body h2{font-size:22px;line-height:32px}
  .stat-strip{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  th,td{padding:12px 16px}
  .faq-q{font-size:16px;padding:14px 16px}
  .faq-a p{padding:0 16px 16px}
  .cta-banner{padding:32px 24px}
  .cta-banner h2{font-size:24px;line-height:34px}
  .cta-banner .btn{width:100%}
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:520px){
  .card,.stat-card,.table-card-head{padding:20px}
  .hero h1{font-size:26px;line-height:36px}
  .brand-sub{letter-spacing:2px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .card:hover,.stat-card:hover,.btn:hover{transform:none}
}