/* roulang page: index */
:root{
  --brand-500:#14B39C;
  --brand-600:#0E9683;
  --brand-300:#6FDCC4;
  --grad-brand:linear-gradient(135deg,#0FA79B 0%,#35C79B 55%,#7BE08A 100%);
  --accent-500:#FF7A2F;
  --amber-400:#FFC24B;
  --ink-900:#0C2422;
  --ink-700:#2C4744;
  --ink-500:#5A7573;
  --bg-050:#F4F9F8;
  --card:#FFFFFF;
  --line:#E2EEEC;
  --line-strong:#CBDDD9;
  --ok:#1FA97A;
  --warn:#E9A23B;
  --err:#E04C4C;
  --r-card:22px;
  --r-hero:28px;
  --r-img:16px;
  --r-btn:12px;
  --shadow-sm:0 8px 24px rgba(10,60,55,.07);
  --shadow-lg:0 18px 42px rgba(10,60,55,.14);
  --ring:0 0 0 3px rgba(20,179,156,.28);
  --sp:8px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg-050);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
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;color:var(--ink-900);font-weight:700;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);}
.section-head p{margin-top:14px;color:var(--ink-500);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-600);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:999px;background:var(--grad-brand);display:inline-block;}

/* 顶部信息条 */
.topbar{background:var(--ink-900);color:#BFEDE3;font-size:13px;height:36px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-300);flex:none;}
.topbar-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:10px;}
.topbar-link{
  border:1px solid rgba(191,237,227,.45);color:#E8FBF6;
  padding:3px 14px;border-radius:999px;font-size:12.5px;white-space:nowrap;transition:all .2s ease;
}
.topbar-link:hover{background:rgba(111,220,196,.16);color:#fff;border-color:var(--brand-300);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(10,60,55,.10);}
.nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--grad-brand);display:grid;place-items:center;box-shadow:0 6px 16px rgba(20,179,156,.32);}
.logo-mark svg{width:22px;height:22px;}
.logo-text{font-size:18px;font-weight:800;color:var(--ink-900);letter-spacing:-.3px;white-space:nowrap;}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--ink-500);letter-spacing:0;line-height:1.2;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  position:relative;display:inline-block;padding:8px 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--ink-700);transition:all .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:999px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--brand-600);transform:translateY(-1px);}
.nav-menu a.is-active{color:var(--brand-600);}
.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:14.5px;
  padding:10px 20px;border-radius:999px;box-shadow:0 8px 20px rgba(20,179,156,.28);
  transition:all .2s ease;white-space:nowrap;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(.94);box-shadow:var(--shadow-lg);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink-900);border-radius:2px;position:relative;transition:all .22s ease;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink-900);border-radius:2px;transition:all .22s ease;}
.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-menu{
  display:none;background:#fff;border-bottom:1px solid var(--line);
  padding:12px 24px 22px;box-shadow:0 18px 32px rgba(10,60,55,.10);
}
.mobile-menu.is-open{display:block;animation:slideDown .24s ease;}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
.mobile-menu a{display:block;padding:12px 4px;border-bottom:1px dashed var(--line);font-weight:600;color:var(--ink-700);}
.mobile-menu a.is-active{color:var(--brand-600);}
.mobile-menu .mobile-cta{margin-top:16px;text-align:center;background:var(--grad-brand);color:#fff;border-radius:999px;border-bottom:0;padding:12px;}

/* Hero */
.hero-wrap{padding:40px 0 0;}
.hero{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  background:var(--ink-900);color:#fff;padding:72px 56px;
}
.hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(12,36,34,.94) 0%,rgba(12,36,34,.80) 48%,rgba(15,167,155,.34) 100%);}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.hero-title{color:#fff;font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.2;letter-spacing:-.5px;}
.hero-title-sub{display:block;margin-top:10px;font-size:clamp(17px,1.6vw,21px);font-weight:600;color:#A9EFE0;letter-spacing:0;}
.hero-sub{margin-top:20px;font-size:17px;color:#CFE8E3;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:999px;font-size:15.5px;font-weight:700;
  transition:all .2s ease;border:1.5px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 26px rgba(20,179,156,.34),inset 0 1px 0 rgba(255,255,255,.32);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(.94);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand-600);border-color:var(--brand-500);border-radius:var(--r-btn);}
.btn-outline:hover{background:rgba(20,179,156,.08);color:var(--brand-600);transform:translateY(-2px);}
.btn-block{width:100%;}
.hero-figure{position:relative;}
.hero-figure img{width:100%;height:290px;border-radius:20px;border:1px solid rgba(255,255,255,.20);}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.34);color:#EAFBF7;
}
.badge b{font-size:16px;font-weight:700;color:#fff;letter-spacing:.02em;}
.badge--light{background:rgba(20,179,156,.09);border-color:var(--brand-300);color:var(--ink-700);}
.badge--light b{color:var(--brand-600);}
.hero-float{
  position:absolute;right:-8px;bottom:-18px;background:#fff;color:var(--ink-900);
  border-radius:16px;padding:12px 18px;box-shadow:var(--shadow-lg);font-size:12.5px;font-weight:600;
}
.hero-float b{display:block;font-size:20px;color:var(--brand-600);line-height:1.2;}

/* 痛点区 8+4 */
.split-8-4{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:start;}
.pain-list{display:grid;gap:18px;}
.pain-item{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--shadow-sm);transition:all .24s ease;}
.pain-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.pain-num{font-size:30px;font-weight:800;line-height:1;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;flex:none;}
.pain-item h3{font-size:18px;margin-bottom:6px;}
.pain-item p{color:var(--ink-500);font-size:14.5px;}
.aside-card{background:linear-gradient(160deg,#E9F8F4 0%,#F4F9F8 100%);border:1px solid var(--line-strong);border-radius:var(--r-card);padding:28px;}
.aside-card h3{font-size:18px;margin-bottom:16px;}
.icon-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.icon-cell{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 12px;text-align:center;font-size:12.5px;color:var(--ink-500);font-weight:600;}
.icon-cell svg{width:22px;height:22px;margin:0 auto 8px;display:block;}
.aside-note{margin-top:18px;font-size:13px;color:var(--ink-500);border-top:1px dashed var(--line-strong);padding-top:14px;}

/* Zigzag 方案区 */
.zigzag{display:grid;gap:32px;}
.zig{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-sm);transition:all .24s ease;}
.zig:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.zig.reverse .zig-media{order:2;}
.zig-media img{width:100%;height:250px;border-radius:var(--r-img);}
.zig h3{font-size:21px;margin-bottom:12px;}
.zig p{color:var(--ink-500);font-size:15px;}
.link-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-weight:700;font-size:14.5px;color:var(--brand-600);}
.link-more svg{transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(4px);}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{font-size:12.5px;font-weight:600;color:var(--brand-600);background:rgba(20,179,156,.10);border-radius:999px;padding:5px 12px;}

/* 数据带 */
.data-band{background:var(--ink-900);border-radius:var(--r-hero);padding:48px 44px;color:#fff;display:grid;grid-template-columns:.85fr 1.15fr;gap:36px;align-items:center;}
.data-band h2{color:#fff;font-size:clamp(22px,2.2vw,30px);}
.data-band p{color:#B7D6D0;margin-top:12px;font-size:15px;}
.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.data-cell{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:18px 16px;}
.data-cell b{display:block;font-size:26px;font-weight:800;color:#fff;letter-spacing:-.5px;}
.data-cell span{font-size:12.5px;color:#A9EFE0;font-weight:600;}
.progress{margin-top:22px;height:8px;border-radius:999px;background:rgba(255,255,255,.16);overflow:hidden;}
.progress i{display:block;height:100%;width:78%;border-radius:999px;background:var(--grad-brand);}
.progress-label{margin-top:10px;font-size:12.5px;color:#A9EFE0;}

/* 证言 */
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.quote{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-sm);position:relative;transition:all .24s ease;}
.quote:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.quote::before{content:"”";position:absolute;top:6px;right:22px;font-size:64px;line-height:1;color:rgba(20,179,156,.14);font-family:Georgia,serif;}
.quote p{font-size:15.5px;color:var(--ink-700);}
.quote-meta{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
.avatar{width:48px;height:48px;border-radius:50%;overflow:hidden;flex:none;background:linear-gradient(135deg,#0FA79B,#7BE08A);display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;}
.quote-meta strong{display:block;font-size:14.5px;color:var(--ink-900);}
.quote-meta span{font-size:12.5px;color:var(--ink-500);}

/* 资讯列表 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:all .24s ease;}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.news-thumb{display:block;aspect-ratio:16/9;background:linear-gradient(135deg,#0FA79B,#7BE08A);overflow:hidden;}
.news-thumb img{width:100%;height:100%;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.news-cat{align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand-600);background:rgba(20,179,156,.10);border-radius:999px;padding:4px 12px;margin-bottom:12px;}
.news-body h3{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--ink-900);}
.news-body h3 a:hover{color:var(--brand-600);}
.news-body p{margin-top:10px;font-size:14px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500);}
.news-foot a{font-weight:700;color:var(--brand-600);}
.empty-state{border:1px dashed var(--line-strong);border-radius:var(--r-card);padding:48px 24px;text-align:center;color:var(--ink-500);font-size:15px;background:#fff;}
.empty-state svg{width:44px;height:44px;margin:0 auto 14px;display:block;opacity:.75;}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto;display:grid;gap:14px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s ease;}
.faq-item.is-open{border-color:var(--brand-300);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 24px 20px 26px;font-size:16px;font-weight:600;color:var(--ink-900);position:relative;}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad-brand);transform:scaleY(0);transform-origin:top;transition:transform .22s ease;}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-icon{width:26px;height:26px;border-radius:50%;border:1px solid var(--brand-300);color:var(--brand-600);display:grid;place-items:center;flex:none;font-size:16px;line-height:1;transition:transform .22s ease,background .22s ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(20,179,156,.10);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.faq-a p{padding:0 26px 22px;font-size:15px;color:var(--ink-500);}

/* CTA */
.cta-band{background:var(--grad-brand);border-radius:var(--r-hero);padding:52px 44px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;box-shadow:0 20px 44px rgba(20,179,156,.28);}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.cta-band p{margin-top:10px;color:#EAFBF7;font-size:15px;}
.cta-band .btn-light{background:#fff;color:var(--brand-600);}
.cta-band .btn-light:hover{color:var(--brand-600);transform:translateY(-2px);}

/* 页脚 */
.site-footer{background:var(--ink-900);color:#A9C4BF;margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-text small{color:#7FA39E;}
.footer-brand p{margin-top:18px;font-size:14px;color:#9FBDB8;max-width:320px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;position:relative;padding-bottom:10px;}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--brand-300);}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#A9C4BF;font-size:14px;}
.footer-col a:hover{color:var(--brand-300);}
.footer-col p{font-size:14px;color:#9FBDB8;}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7FA39E;}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:14px;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;
  box-shadow:0 12px 28px rgba(20,179,156,.38);opacity:0;visibility:hidden;
  transition:all .25s ease;z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);color:#fff;}

/* 响应式 */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero{padding:60px 40px;}
}
@media (max-width:1023px){
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero-figure img{height:240px;}
  .hero-float{right:12px;}
  .split-8-4{grid-template-columns:1fr;}
  .zig{grid-template-columns:1fr;gap:22px;padding:22px;}
  .zig.reverse .zig-media{order:0;}
  .data-band{grid-template-columns:1fr;padding:40px 32px;}
  .quotes{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .topbar-left span:last-child{display:none;}
  .hero{padding:44px 24px;border-radius:22px;}
  .hero-title{letter-spacing:-.2px;}
  .hero-sub{font-size:15.5px;}
  .hero-figure img{height:200px;}
  .hero-float{position:static;display:inline-block;margin-top:16px;}
  .data-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .zig-media img{height:200px;}
  .cta-band{padding:34px 24px;}
  .section{padding:48px 0;}
  .site-footer{margin-top:56px;padding-top:48px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .logo-text{font-size:16px;}
  .hero{padding:36px 20px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .data-grid{grid-template-columns:1fr;}
  .icon-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;text-align:left;}
  .footer-bottom{justify-content:center;text-align:center;}
  .badge{flex-wrap:wrap;}
}

/* roulang page: article */
:root{
  --brand-500:#14B39C;
  --brand-600:#0E9683;
  --brand-300:#6FDCC4;
  --grad-brand:linear-gradient(135deg,#0FA79B 0%,#35C79B 55%,#7BE08A 100%);
  --accent-500:#FF7A2F;
  --amber-400:#FFC24B;
  --ink-900:#0C2422;
  --ink-700:#2C4744;
  --ink-500:#5A7573;
  --bg-050:#F4F9F8;
  --card:#FFFFFF;
  --line:#E2EEEC;
  --line-strong:#CBDDD9;
  --ok:#1FA97A;
  --warn:#E9A23B;
  --err:#E04C4C;
  --r-card:22px;
  --r-hero:28px;
  --r-img:16px;
  --r-btn:12px;
  --sh-1:0 8px 24px rgba(10,60,55,.07);
  --sh-2:0 18px 42px rgba(10,60,55,.14);
  --focus:0 0 0 3px rgba(20,179,156,.28);
  --sp:8px;
  --container:1200px;
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg-050);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,textarea{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
::selection{background:rgba(20,179,156,.22);}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;}
.section-sub{margin-top:12px;color:var(--ink-500);font-size:15px;max-width:720px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-900);color:#BFE9E1;font-size:13px;line-height:36px;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar-left .dot{width:6px;height:6px;border-radius:999px;background:var(--brand-300);flex:none;}
.topbar-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-link{
  display:inline-block;padding:0 16px;height:24px;line-height:22px;border-radius:999px;
  border:1px solid rgba(255,255,255,.42);color:#fff;font-size:12.5px;transition:background .2s ease,border-color .2s ease;
}
.topbar-link:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.7);color:#fff;}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(150%) blur(8px);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(10,60,55,.10);}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 14px rgba(15,167,155,.28);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.2px;line-height:1.15;display:flex;flex-direction:column;}
.logo-text small{font-size:11px;font-weight:500;color:var(--ink-500);letter-spacing:.4px;}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-menu a{
  position:relative;display:inline-block;padding:8px 14px;font-size:15px;color:var(--ink-700);border-radius:10px;
  transition:color .2s ease,transform .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--brand-500);transform:translateY(-1px);background:rgba(20,179,156,.07);}
.nav-menu a.is-active{color:var(--brand-600);font-weight:600;}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--brand-500);
}
.nav-cta{flex:none;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative;transition:background .2s;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .22s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}
.nav-overlay{
  position:fixed;inset:0;background:rgba(12,36,34,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:55;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-brand);color:#fff;border-radius:999px;
  box-shadow:0 10px 22px rgba(15,167,155,.28), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(.94);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;border-color:var(--brand-500);color:var(--brand-600);}
.btn-outline:hover{background:rgba(20,179,156,.08);color:var(--brand-600);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{padding:0;border:0;color:var(--brand-600);font-weight:600;background:none;border-radius:6px;}
.btn-ghost .arrow{transition:transform .2s ease;display:inline-block;}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--ink-500);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-500);}
.crumb .sep{color:var(--line-strong);}
.crumb .current{color:var(--brand-600);font-weight:600;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;border-radius:var(--r-hero);overflow:hidden;padding:40px 44px 44px;
  background:linear-gradient(135deg,rgba(15,167,155,.10) 0%,rgba(53,199,155,.10) 55%,rgba(123,224,138,.14) 100%);
  border:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(20,179,156,.18),rgba(20,179,156,0) 70%);pointer-events:none;
}
.article-hero .crumb{margin-bottom:20px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:rgba(20,179,156,.12);border:1px solid rgba(20,179,156,.28);color:var(--brand-600);
  font-size:12.5px;font-weight:600;line-height:1.5;
}
.article-title{
  font-size:clamp(26px,3.4vw,40px);line-height:1.25;font-weight:800;color:var(--ink-900);
  letter-spacing:-.5px;margin:16px 0 16px;max-width:900px;
}
.article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--ink-500);}
.article-meta .divider{color:var(--line-strong);}
.article-cover{margin-top:34px;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);background:var(--bg-050);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 正文 ---------- */
.article-layout{padding:56px 0 88px;}
.article-body-wrap{max-width:820px;margin:0 auto;padding:0 24px;}
.article-content{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 44px;box-shadow:var(--sh-1);
  font-size:17px;line-height:1.9;color:var(--ink-700);
}
.article-content p{margin:0 0 18px;}
.article-content h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--ink-900);
  margin:40px 0 18px;padding-left:16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad-brand);
}
.article-content h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink-900);margin:28px 0 12px;}
.article-content h4{font-size:17px;font-weight:600;color:var(--ink-900);margin:22px 0 10px;}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:6px;}
.article-content li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.9;}
.article-content ul li::before{
  content:"";position:absolute;left:0;top:13px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-300);box-shadow:0 0 0 3px rgba(111,220,196,.22);
}
.article-content ol{counter-reset:olc;}
.article-content ol li{counter-increment:olc;}
.article-content ol li::before{
  content:counter(olc);position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:7px;
  background:rgba(20,179,156,.12);color:var(--brand-600);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-content blockquote{
  margin:24px 0;padding:20px 24px;border-left:4px solid var(--brand-500);
  background:rgba(20,179,156,.07);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink-700);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-img);margin:24px 0 8px;box-shadow:var(--sh-1);}
.article-content a{border-bottom:1px solid rgba(20,179,156,.4);}
.article-content a:hover{border-bottom-color:var(--brand-500);}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-content th{background:var(--bg-050);color:var(--ink-900);font-weight:600;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 标签 / 空态 ---------- */
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:32px;}
.tag-row .label{font-size:13px;color:var(--ink-500);}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);
  color:var(--ink-700);font-size:13px;transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:var(--brand-300);color:var(--brand-600);transform:translateY(-1px);}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);background:#fff;
  padding:56px 28px;text-align:center;color:var(--ink-500);
}
.empty-state .icon{
  width:56px;height:56px;border-radius:18px;margin:0 auto 18px;background:rgba(20,179,156,.10);
  display:flex;align-items:center;justify-content:center;color:var(--brand-500);
}
.empty-state h2{font-size:22px;color:var(--ink-900);font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:14px;margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:64px;}
.related .section-title{font-size:22px;}
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:24px;}
.info-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.info-card .thumb{background:var(--bg-050);}
.info-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.info-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.info-card h3{font-size:16px;line-height:1.5;font-weight:600;color:var(--ink-900);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-card h3 a{color:var(--ink-900);}
.info-card h3 a:hover{color:var(--brand-600);}
.info-card .desc{font-size:14px;color:var(--ink-500);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px;}
.info-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-500);}
.info-card .foot .go{color:var(--brand-600);font-weight:600;}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;}
.faq-item.is-open{border-color:var(--brand-300);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-q .plus{
  flex:none;width:28px;height:28px;border-radius:999px;border:1px solid var(--line-strong);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:17px;line-height:1;
  transition:transform .22s ease,background .22s ease,border-color .22s ease;
}
.faq-item.is-open .faq-q .plus{transform:rotate(135deg);background:rgba(20,179,156,.12);border-color:var(--brand-300);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a .inner{
  padding:0 24px 22px 24px;border-left:3px solid transparent;font-size:15px;color:var(--ink-500);line-height:1.85;
}
.faq-item.is-open .faq-a .inner{border-left-color:var(--brand-500);padding-left:21px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-hero);padding:48px 44px;
  background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;box-shadow:0 18px 42px rgba(15,167,155,.26);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.14);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.3;margin-bottom:10px;color:#fff;}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.92);max-width:560px;}
.cta-band .btn-primary{background:#fff;color:var(--brand-600);box-shadow:0 10px 24px rgba(0,0,0,.16);}
.cta-band .btn-primary:hover{filter:none;background:#F2FFFB;color:var(--brand-600);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo-text{color:#fff;font-size:18px;}
.footer-brand .logo-text small{color:rgba(255,255,255,.55);font-size:11.5px;font-weight:400;margin-top:6px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:360px;}
.footer-col h4{
  position:relative;font-size:14px;color:rgba(255,255,255,.92);font-weight:600;margin-bottom:18px;padding-bottom:10px;
}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;border-radius:2px;background:var(--brand-300);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.68);margin-bottom:10px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:26px;width:46px;height:46px;border-radius:14px;z-index:70;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .nav-menu{
    position:absolute;top:100%;left:0;right:0;margin:0;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 40px rgba(10,60,55,.12);
    padding:14px 20px 20px;transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-menu a{padding:12px 14px;font-size:15.5px;}
  .nav-menu a.is-active::after{left:14px;right:auto;width:22px;bottom:6px;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-cta{display:none;}
  .header-inner{gap:16px;}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-content{padding:32px 28px;}
  .article-hero{padding:32px 28px 34px;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .container{padding:0 20px;}
  .topbar-left span{display:none;}
  .topbar-left{gap:0;}
  .article-layout{padding:36px 0 64px;}
  .article-body-wrap{padding:0 20px;}
  .article-content{padding:26px 20px;font-size:16.5px;}
  .article-content h2{font-size:21px;}
  .article-content h3{font-size:18px;}
  .card-grid-3{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left;}
  .cta-band{padding:34px 24px;}
  .article-cover{margin-top:26px;}
}
@media (max-width:520px){
  .cta-band .btn{width:100%;}
  .back-row .btn{width:100%;}
  .article-title{font-size:24px;}
  .back-row{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --brand-500:#14B39C;
  --brand-600:#0E9683;
  --brand-300:#6FDCC4;
  --grad-brand:linear-gradient(135deg,#0FA79B 0%,#35C79B 55%,#7BE08A 100%);
  --accent-500:#FF7A2F;
  --amber-400:#FFC24B;
  --ink-900:#0C2422;
  --ink-700:#2C4744;
  --ink-500:#5A7573;
  --bg-050:#F4F9F8;
  --card:#FFFFFF;
  --line:#E2EEEC;
  --line-strong:#CBDDD9;
  --ok:#1FA97A;
  --radius-card:22px;
  --radius-hero:28px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-1:0 8px 24px rgba(10,60,55,.07);
  --shadow-2:0 18px 42px rgba(10,60,55,.14);
  --ring:0 0 0 3px rgba(20,179,156,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg-050);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:800;letter-spacing:-.5px;color:var(--ink-900);}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;color:var(--ink-900);}
h3{font-size:21px;line-height:1.45;font-weight:600;color:var(--ink-900);}
p{color:var(--ink-500);}
.lead{font-size:17px;line-height:1.85;color:var(--ink-500);}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-900);color:#A9D8D0;font-size:13px;line-height:36px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.topbar-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-cta{
  border:1px solid rgba(255,255,255,.45);border-radius:999px;
  padding:2px 14px;font-size:12px;color:#fff;line-height:1.6;
  transition:background .22s ease,border-color .22s ease;
}
.topbar-cta:hover{background:rgba(255,255,255,.14);border-color:#fff;}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,transform .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(10,60,55,.10);}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 6px 16px rgba(20,179,156,.32);
}
.logo-text{display:flex;flex-direction:column;font-size:17px;font-weight:800;color:var(--ink-900);line-height:1.2;letter-spacing:-.2px;}
.logo-text small{font-size:11px;font-weight:500;color:var(--ink-500);letter-spacing:.4px;line-height:1.4;}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-menu a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--ink-700);
  transition:color .2s ease,transform .2s ease,background .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:center;transition:transform .24s ease;
}
.nav-menu a:hover{color:var(--brand-500);transform:translateY(-1px);}
.nav-menu a.is-active{color:var(--brand-600);}
.nav-menu a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .24s ease,opacity .24s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{
  display:none;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 14px 30px rgba(10,60,55,.12);
}
.mobile-panel.is-open{display:block;}
.mobile-panel .container{padding-top:12px;padding-bottom:18px;}
.mobile-panel a{
  display:block;padding:12px 14px;border-radius:12px;font-weight:600;color:var(--ink-700);
  border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.mobile-panel a:hover,.mobile-panel a.is-active{background:rgba(20,179,156,.09);color:var(--brand-600);border-color:var(--line);}
.mobile-panel .btn{margin-top:12px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
}
.btn-primary{
  background:var(--grad-brand);color:#fff;
  box-shadow:0 10px 24px rgba(20,179,156,.30),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(.94);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  background:#fff;color:var(--brand-600);border-color:var(--brand-500);
}
.btn-outline:hover{background:rgba(20,179,156,.08);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-pill{border-radius:999px;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);
  font-weight:700;font-size:15px;transition:color .2s ease;
}
.link-arrow span{transition:transform .22s ease;}
.link-arrow:hover span{transform:translateX(4px);}
.link-arrow:hover{color:var(--brand-500);}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--ink-500);padding:18px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--line-strong);}
.breadcrumb li:last-child::after{content:"";margin:0;}
.breadcrumb a{transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .current{color:var(--brand-600);font-weight:600;}

/* ---------- 页面头部（分类条带） ---------- */
.page-hero{
  position:relative;margin-top:18px;border-radius:var(--radius-hero);overflow:hidden;
  background-image:linear-gradient(120deg,rgba(9,58,54,.90) 0%,rgba(14,150,131,.78) 52%,rgba(123,224,138,.55) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:56px 44px 52px;color:#fff;
  box-shadow:var(--shadow-1);
}
.page-hero::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.24) 0%,rgba(255,255,255,0) 68%);
}
.page-hero-inner{position:relative;z-index:2;max-width:760px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  font-size:13px;font-weight:600;letter-spacing:.4px;color:#fff;margin-bottom:18px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--amber-400);display:inline-block;}
.page-hero h1{color:#fff;margin-bottom:16px;}
.page-hero .hero-desc{font-size:16px;line-height:1.85;color:rgba(255,255,255,.88);max-width:640px;}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.badge{
  display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.36);color:#fff;
}
.badge b{font-size:17px;font-weight:800;line-height:1;letter-spacing:-.5px;}
.badge span{font-size:12px;color:rgba(255,255,255,.85);line-height:1.4;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--brand-600);text-transform:uppercase;margin-bottom:12px;
}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;}

/* ---------- 主次分栏 ---------- */
.split{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start;}
.article-flow{display:flex;flex-direction:column;gap:32px;}
.content-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.content-card h3{margin-bottom:12px;}
.content-card p + p{margin-top:14px;}
.figure-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;
}
.figure-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure-card .figure-body{padding:24px 26px 28px;}
.figure-card .figure-body h3{margin-bottom:10px;}
.figure-card .figure-body p{margin-bottom:16px;}
.tag{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  color:var(--brand-600);background:rgba(20,179,156,.10);border:1px solid rgba(20,179,156,.22);
  margin-bottom:12px;
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:6px;}
.check-list li{
  position:relative;padding-left:30px;font-size:15px;line-height:1.8;color:var(--ink-700);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:6px;
  background:var(--grad-brand);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:13px;width:6px;height:3px;border-left:2px solid #fff;border-bottom:2px solid #fff;
  transform:rotate(-45deg);
}
.check-list li b{color:var(--ink-900);}

/* ---------- 侧栏快捷入口 ---------- */
.aside-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px;}
.quick-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.quick-card h3{font-size:18px;margin-bottom:8px;}
.quick-card p{font-size:14px;line-height:1.75;margin-bottom:14px;}
.quick-icon{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;
  background:rgba(20,179,156,.12);color:var(--brand-600);font-weight:800;font-size:15px;
}
.quick-card.is-accent{background:var(--grad-brand);border-color:transparent;color:#fff;}
.quick-card.is-accent h3,.quick-card.is-accent p{color:#fff;}
.quick-card.is-accent p{color:rgba(255,255,255,.88);}
.quick-card.is-accent .quick-icon{background:rgba(255,255,255,.22);color:#fff;}
.quick-card.is-accent .btn-outline{background:transparent;border-color:#fff;color:#fff;}
.quick-card.is-accent .btn-outline:hover{background:rgba(255,255,255,.16);}

/* ---------- 数据带 ---------- */
.data-band{
  background:var(--ink-900);border-radius:var(--radius-hero);padding:44px 44px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:36px;align-items:center;
  color:#fff;box-shadow:var(--shadow-1);
}
.data-band .band-title{font-size:22px;font-weight:700;color:#fff;line-height:1.5;margin-bottom:10px;}
.data-band p{color:rgba(255,255,255,.72);font-size:14px;}
.band-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.metric{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  border-radius:18px;padding:16px 18px;
}
.metric b{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:-.5px;line-height:1.2;}
.metric span{display:block;font-size:12px;color:rgba(255,255,255,.75);margin-top:6px;}
.progress{margin-top:22px;height:8px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;}
.progress i{display:block;height:100%;width:82%;border-radius:999px;background:var(--grad-brand);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;margin-bottom:14px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-q i{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;font-style:normal;font-size:16px;color:var(--brand-600);
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);background:var(--brand-500);color:#fff;border-color:var(--brand-500);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.faq-a-inner{
  padding:0 22px 20px 22px;border-left:3px solid var(--brand-500);margin-left:22px;
  font-size:15px;line-height:1.85;color:var(--ink-500);
}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- CTA 条 ---------- */
.cta-bar{
  border-radius:var(--radius-hero);padding:32px 36px;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:22px;
  background:linear-gradient(135deg,rgba(15,167,155,.10) 0%,rgba(123,224,138,.14) 100%);
  border:1px solid var(--line);border-left:6px solid var(--brand-500);
}
.cta-bar h2{font-size:22px;margin-bottom:6px;}
.cta-bar p{font-size:14px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .logo-text{color:#fff;font-size:18px;font-weight:800;}
.footer-brand .logo-text small{color:rgba(255,255,255,.6);font-size:11px;font-weight:500;margin-top:4px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:340px;}
.footer-col h4{
  font-size:14px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px;padding-bottom:10px;
  position:relative;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;border-radius:2px;background:var(--brand-300);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col p{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease;}
.footer-col a:hover{color:var(--brand-300);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;
  background:#fff;border:1px solid var(--line-strong);color:var(--brand-600);
  display:grid;place-items:center;box-shadow:var(--shadow-1);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-500);color:#fff;border-color:var(--brand-500);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .nav-menu,.header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .split{grid-template-columns:1fr;}
  .aside-stack{position:static;}
  .data-band{grid-template-columns:1fr;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .page-hero{padding:40px 24px 38px;}
  .band-metrics{grid-template-columns:1fr 1fr;}
  .section{padding:48px 0;}
  .content-card,.figure-card .figure-body{padding:22px;}
  .cta-bar{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:559px){
  .container{padding:0 20px;}
  .header-inner{height:62px;gap:14px;}
  .logo-text{font-size:15px;}
  .logo-text small{display:none;}
  .data-band{border-radius:22px;padding:28px 22px;}
  .band-metrics{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;text-align:center;}
}
@media (max-width:480px){
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .badge{width:100%;justify-content:flex-start;}
  .breadcrumb{font-size:12px;}
}

/* roulang page: category3 */
:root{
  --brand-500:#14B39C;
  --brand-600:#0E9683;
  --brand-300:#6FDCC4;
  --grad-brand:linear-gradient(135deg,#0FA79B 0%,#35C79B 55%,#7BE08A 100%);
  --accent-500:#FF7A2F;
  --amber-400:#FFC24B;
  --ink-900:#0C2422;
  --ink-700:#2C4744;
  --ink-500:#5A7573;
  --bg-050:#F4F9F8;
  --card:#FFFFFF;
  --line:#E2EEEC;
  --line-strong:#CBDDD9;
  --ok:#1FA97A;
  --warn:#E9A23B;
  --err:#E04C4C;
  --radius-card:22px;
  --radius-hero:28px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-sm:0 8px 24px rgba(10,60,55,.07);
  --shadow-lg:0 18px 42px rgba(10,60,55,.14);
  --focus:0 0 0 3px rgba(20,179,156,.28);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg-050);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink-900);
  color:#BFE9E0;
  font-size:13px;
  height:36px;
  display:flex;
  align-items:center;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-300);flex:none;}
.topbar-left .tip{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-left .domain{color:#FFFFFF;letter-spacing:.4px;}
.topbar-cta{
  border:1px solid rgba(255,255,255,.42);
  border-radius:999px;
  padding:3px 14px;
  font-size:12.5px;
  color:#fff;
  white-space:nowrap;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.topbar-cta:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,transform .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(10,60,55,.09);}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.logo-mark{
  width:36px;height:36px;
  border-radius:12px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(20,179,156,.28);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{
  display:flex;
  flex-direction:column;
  font-size:17px;
  font-weight:800;
  color:var(--ink-900);
  letter-spacing:.2px;
  line-height:1.15;
}
.logo-text small{
  font-size:11.5px;
  font-weight:500;
  color:var(--ink-500);
  letter-spacing:.3px;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-menu a{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-700);
  border-radius:10px;
  transition:color .2s ease,transform .2s ease,background .2s ease;
}
.nav-menu a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:3px;
  border-radius:999px;
  background:var(--brand-500);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .24s ease;
}
.nav-menu a:hover{color:var(--brand-600);transform:translateY(-1px);background:rgba(20,179,156,.07);}
.nav-menu a:hover::after,.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-menu a.is-active{color:var(--brand-600);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  background:var(--grad-brand);
  color:#fff;
  font-size:14.5px;
  font-weight:700;
  box-shadow:0 8px 20px rgba(20,179,156,.3),inset 0 1px 0 rgba(255,255,255,.36);
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(.94);box-shadow:var(--shadow-lg);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  background:#fff;
  border-radius:12px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px 24px 22px;
}
.mobile-panel.is-open{display:block;animation:slideDown .28s ease;}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
.mobile-panel a{
  display:block;
  padding:13px 4px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-700);
  border-bottom:1px dashed var(--line);
}
.mobile-panel a:last-of-type{border-bottom:none;}
.mobile-panel a.is-active{color:var(--brand-600);}
.mobile-panel .nav-cta{display:flex;justify-content:center;margin-top:14px;}
.nav-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(12,36,34,.36);
  z-index:55;
}
.nav-mask.is-open{display:block;}

/* ============ 面包屑 ============ */
.breadcrumb{
  font-size:13px;
  color:var(--ink-500);
  padding:20px 0 0;
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--ink-500);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--brand-600);font-weight:600;}

/* ============ 页面头部条带 ============ */
.page-hero{
  position:relative;
  margin-top:20px;
  border-radius:var(--radius-hero);
  overflow:hidden;
  background:linear-gradient(135deg,#EAF8F5 0%,#DFF4EE 55%,#E9F8E4 100%);
  border:1px solid var(--line);
  padding:56px 48px;
  min-height:248px;
  display:flex;
  align-items:center;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.16;
  mix-blend-mode:multiply;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-90px;bottom:-120px;
  width:380px;height:380px;
  border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(20,179,156,.24),rgba(20,179,156,0) 70%);
}
.page-hero-inner{position:relative;z-index:2;max-width:760px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand-600);
  background:rgba(255,255,255,.78);
  border:1px solid var(--brand-300);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent-500);display:block;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.5px;
  color:var(--ink-900);
}
.page-hero .lede{
  margin-top:14px;
  font-size:17px;
  line-height:1.8;
  color:var(--ink-700);
  max-width:640px;
}
.badge-row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:24px;
}
.badge{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.86);
  border:1px solid var(--brand-300);
  color:var(--ink-700);
  font-size:13px;
}
.badge b{
  font-size:17px;
  font-weight:700;
  color:var(--brand-600);
  font-variant-numeric:tabular-nums;
  line-height:1;
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.3px;
}
.section-head p{margin-top:12px;color:var(--ink-500);font-size:16px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ============ 2×2 卡片网格 ============ */
.grid-2x2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:var(--gap);
}
.data-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.data-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-300);}
.data-card .icon{
  width:46px;height:46px;
  border-radius:14px;
  display:grid;place-items:center;
  background:rgba(20,179,156,.12);
  color:var(--brand-600);
  font-weight:800;
  font-size:16px;
  font-variant-numeric:tabular-nums;
}
.data-card h3{font-size:20px;font-weight:600;color:var(--ink-900);line-height:1.45;}
.data-card p{font-size:15px;color:var(--ink-500);}
.data-card .mini-list{margin-top:2px;display:flex;flex-direction:column;gap:8px;}
.data-card .mini-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--ink-700);
}
.data-card .mini-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand-300);
}

/* ============ 横向数据带 ============ */
.data-strip{
  background:var(--ink-900);
  border-radius:var(--radius-hero);
  padding:44px 48px;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.data-strip::after{
  content:"";
  position:absolute;
  left:-60px;top:-80px;
  width:300px;height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(53,199,155,.28),rgba(53,199,155,0) 70%);
}
.data-strip .strip-text{position:relative;z-index:2;max-width:380px;}
.data-strip .strip-text strong{
  display:block;
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
  line-height:1.4;
  letter-spacing:-.2px;
}
.data-strip .strip-text span{display:block;margin-top:10px;font-size:14px;color:#A9CFC8;}
.strip-badges{
  position:relative;
  z-index:2;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.badge-dark{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.26);
  border-radius:999px;
  padding:12px 20px;
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  color:#fff;
  font-size:12.5px;
  backdrop-filter:blur(2px);
}
.badge-dark b{font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1;}
.badge-dark em{font-style:normal;color:#BFE9E0;}
.progress-track{
  margin-top:28px;
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  overflow:hidden;
  position:relative;
  z-index:2;
}
.progress-track i{
  display:block;
  height:100%;
  width:82%;
  border-radius:999px;
  background:var(--grad-brand);
}
.strip-wrap{position:relative;}

/* ============ 场景清单 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap);
}
.scene-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  transition:transform .26s ease,box-shadow .26s ease;
}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.scene-item .tag{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  color:var(--accent-500);
  background:rgba(255,122,47,.1);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:14px;
}
.scene-item h3{font-size:18px;font-weight:600;color:var(--ink-900);margin-bottom:10px;}
.scene-item p{font-size:14.5px;color:var(--ink-500);}

/* ============ 图文分栏 ============ */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.split-media{
  border-radius:var(--radius-hero);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  position:relative;
}
.split-media img{
  width:100%;
  height:380px;
  object-fit:cover;
  border-radius:0;
}
.split-body h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;
  font-weight:700;
  color:var(--ink-900);
}
.split-body p{margin-top:14px;color:var(--ink-500);}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--ink-700);
}
.check-list li b{
  flex:none;
  width:22px;height:22px;
  border-radius:50%;
  background:rgba(20,179,156,.14);
  color:var(--brand-600);
  display:grid;place-items:center;
  font-size:12px;
  margin-top:3px;
}

/* ============ 流程 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
  counter-reset:step;
}
.step{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  position:relative;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-300);}
.step .num{
  width:38px;height:38px;
  border-radius:50%;
  background:var(--grad-brand);
  color:#fff;
  display:grid;place-items:center;
  font-weight:700;
  font-size:15px;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
  box-shadow:0 8px 18px rgba(20,179,156,.26);
}
.step h3{font-size:17.5px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--ink-500);}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:var(--brand-300);}
.faq-item.is-open{box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:20px 24px;
  background:none;
  border:none;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
}
.faq-q .pm{
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;
  color:var(--brand-600);
  font-size:16px;
  line-height:1;
  transition:transform .24s ease,background .24s ease,border-color .24s ease;
}
.faq-item.is-open .faq-q .pm{transform:rotate(45deg);background:rgba(20,179,156,.12);border-color:var(--brand-300);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .26s ease;
  border-left:3px solid transparent;
}
.faq-item.is-open .faq-a{border-left-color:var(--brand-500);}
.faq-a p{
  padding:0 24px 20px 24px;
  font-size:15px;
  color:var(--ink-500);
}

/* ============ CTA 条 ============ */
.cta-bar{
  background:var(--grad-brand);
  border-radius:var(--radius-card);
  padding:34px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  color:#fff;
  box-shadow:0 18px 42px rgba(20,179,156,.28);
  flex-wrap:wrap;
}
.cta-bar h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
  line-height:1.4;
  letter-spacing:-.2px;
}
.cta-bar p{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.9);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  padding:13px 26px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,filter .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease;
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:0 8px 20px rgba(20,179,156,.3),inset 0 1px 0 rgba(255,255,255,.34);
  border-radius:999px;
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(.94);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;
  color:var(--brand-600);
  border:1.5px solid var(--brand-500);
}
.btn-ghost:hover{background:rgba(20,179,156,.08);transform:translateY(-2px);}
.btn-on-gradient{
  background:#fff;
  color:var(--brand-600);
  border-radius:999px;
}
.btn-on-gradient:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.16);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand-600);
  font-weight:700;
  font-size:14.5px;
}
.link-arrow span{transition:transform .22s ease;}
.link-arrow:hover span{transform:translateX(4px);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  color:#9FC4BD;
  margin-top:88px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-text{
  color:#fff;
  font-size:18px;
  font-weight:800;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.footer-brand .logo-text small{
  font-size:12px;
  font-weight:500;
  color:var(--brand-300);
  letter-spacing:.4px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#8FB4AD;max-width:340px;}
.footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:600;
  padding-bottom:10px;
  margin-bottom:16px;
  position:relative;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:26px;height:2px;
  border-radius:2px;
  background:var(--brand-500);
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col p{font-size:14px;color:#9FC4BD;transition:color .2s ease;}
.footer-col a:hover{color:var(--brand-300);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0 26px;
  font-size:13px;
  color:#7EA49D;
  flex-wrap:wrap;
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:22px;
  bottom:24px;
  width:46px;height:46px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand-600);
  display:grid;
  place-items:center;
  cursor:pointer;
  box-shadow:var(--shadow-sm);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
  z-index:70;
  font-size:18px;
}
.to-top.is-visible{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1023px){
  .nav-menu,.nav-cta.desktop-only{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .page-hero{padding:44px 32px;border-radius:24px;}
  .grid-2x2{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media img{height:320px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .data-strip{flex-direction:column;align-items:flex-start;padding:36px 32px;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .section{padding:48px 0;}
  .section-sm{padding:40px 0;}
  .page-hero{padding:34px 22px;border-radius:20px;min-height:auto;}
  .page-hero .lede{font-size:15.5px;}
  .badge-row{gap:10px;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-bar{padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .cta-bar .btn{width:100%;}
  .split-media img{height:240px;}
  .data-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .strip-badges{gap:10px;}
  .badge-dark{padding:10px 16px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .topbar-left .tip{display:none;}
  .logo-text{font-size:15.5px;}
  .logo-text small{font-size:10.5px;}
  .btn{width:100%;}
  .badge-row .badge{width:100%;justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr;text-align:left;}
  .data-strip{padding:28px 20px;}
  .to-top{right:14px;bottom:16px;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand-500:#14B39C;
  --brand-600:#0E9683;
  --brand-300:#6FDCC4;
  --grad-brand:linear-gradient(135deg,#0FA79B 0%,#35C79B 55%,#7BE08A 100%);
  --accent-500:#FF7A2F;
  --amber-400:#FFC24B;
  --ink-900:#0C2422;
  --ink-700:#2C4744;
  --ink-500:#5A7573;
  --bg-050:#F4F9F8;
  --card:#FFFFFF;
  --line:#E2EEEC;
  --line-strong:#CBDDD9;
  --ok:#1FA97A;
  --err:#E04C4C;
  --radius-card:22px;
  --radius-hero:28px;
  --radius-btn:12px;
  --shadow-sm:0 8px 24px rgba(10,60,55,.07);
  --shadow-lg:0 18px 42px rgba(10,60,55,.14);
  --ring:0 0 0 3px rgba(20,179,156,.28);
  --container:1200px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg-050);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
strong{color:var(--ink-900);}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px;}

/* ============ 通用容器与标题 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:88px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-600);background:rgba(20,179,156,.1);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-title{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;font-weight:700;color:var(--ink-900);
  letter-spacing:-.4px;
}
.section-lead{margin-top:14px;font-size:16px;color:var(--ink-500);max-width:660px;}
.section-head.center .section-lead{margin-left:auto;margin-right:auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{
  background:var(--grad-brand);color:#fff;border-radius:999px;
  box-shadow:0 10px 22px rgba(15,167,155,.26),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(.94);box-shadow:0 16px 32px rgba(15,167,155,.32);}
.btn-primary:active{transform:translateY(0);filter:brightness(.9);}
.btn-ghost{
  background:#fff;color:var(--brand-600);
  border:1.5px solid var(--brand-500);
}
.btn-ghost:hover{background:rgba(20,179,156,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-600);font-weight:600;font-size:15px;
  padding:0;background:none;
}
.btn-link .arrow{transition:transform .2s ease;display:inline-block;}
.btn-link:hover{color:var(--brand-500);}
.btn-link:hover .arrow{transform:translateX(4px);}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink-900);color:#CFEDE7;font-size:13px;line-height:1.6;}
.topbar-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.topbar-domain{font-weight:600;color:#fff;font-variant-numeric:tabular-nums;}
.topbar-note{color:rgba(207,237,231,.72);}
.topbar-cta{
  border:1px solid rgba(255,255,255,.35);border-radius:999px;
  padding:3px 13px;font-size:12px;color:#fff;white-space:nowrap;
}
.topbar-cta:hover{background:rgba(255,255,255,.14);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(10,60,55,.1);}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:24px;position:relative;
  transition:transform .25s ease;
}
.site-header.is-scrolled .nav-inner{transform:scale(.995);}
.logo{display:flex;align-items:center;gap:11px;flex:none;}
.logo-mark{
  width:36px;height:36px;border-radius:13px;background:var(--grad-brand);
  position:relative;flex:none;box-shadow:0 6px 16px rgba(15,167,155,.28);
}
.logo-mark::before{
  content:"";position:absolute;left:50%;top:50%;
  width:20px;height:10px;transform:translate(-50%,-50%);
  border-radius:50%;border:2.5px solid rgba(255,255,255,.95);
  border-bottom-color:transparent;border-left-color:transparent;
  rotate:-16deg;
}
.logo-text{
  display:flex;flex-direction:column;line-height:1.25;
  font-size:18px;font-weight:800;color:var(--ink-900);letter-spacing:-.3px;white-space:nowrap;
}
.logo-text small{font-size:11px;font-weight:500;color:var(--ink-500);letter-spacing:0;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-inline:auto;}
.nav-menu a{
  position:relative;display:block;padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--ink-700);transition:color .2s ease,transform .2s ease,background-color .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--brand-500);transform:scaleX(0);transition:transform .22s ease;
}
.nav-menu a:hover{color:var(--brand-500);transform:translateY(-1px);}
.nav-menu a.is-active{color:var(--brand-600);font-weight:600;background:rgba(20,179,156,.07);}
.nav-menu a.is-active::after{transform:scaleX(1);}
.nav-menu .nav-menu-cta{display:none;}
.nav-cta{flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  flex-direction:column;gap:5px;flex:none;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:.24s;}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#E9F7F4 0%,#DCF2ED 55%,#EAF8E7 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  opacity:.15;
}
.page-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(20,179,156,.28),rgba(20,179,156,0) 70%);
}
.page-hero .container{position:relative;z-index:2;padding-top:26px;padding-bottom:64px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--brand-600);font-weight:600;}
.hero-title{
  font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:800;
  letter-spacing:-.5px;color:var(--ink-900);margin-top:26px;
}
.hero-sub{
  margin-top:18px;max-width:620px;font-size:clamp(16px,1.4vw,18px);
  color:var(--ink-500);line-height:1.85;
}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;background:#fff;
  border:1px solid var(--brand-300);color:var(--brand-600);font-size:13px;
  box-shadow:0 6px 18px rgba(10,60,55,.06);
}
.badge strong{
  font-size:18px;font-weight:700;line-height:1;color:var(--ink-900);
  font-variant-numeric:tabular-nums;
}

/* ============ 交错图文 ============ */
.zigzag-row{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
}
.zigzag-row + .zigzag-row{margin-top:72px;}
.zigzag-row.reverse .zigzag-media{order:2;}
.zigzag-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  transition:box-shadow .3s ease,transform .3s ease;
}
.zigzag-media img:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.zigzag-body h3{font-size:clamp(20px,2vw,24px);line-height:1.45;font-weight:600;color:var(--ink-900);}
.zigzag-body p{margin-top:14px;color:var(--ink-500);}
.zigzag-body .btn-link{margin-top:20px;}
.mini-list{margin-top:18px;display:grid;gap:10px;}
.mini-list li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-500);
}
.mini-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--grad-brand);
}

/* ============ 宽幅卡片 ============ */
.wide-card{
  display:grid;grid-template-columns:1.1fr 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-hero);
  overflow:hidden;box-shadow:var(--shadow-sm);margin-top:72px;
}
.wide-media{position:relative;min-height:340px;}
.wide-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.wide-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(12,36,34,.35),rgba(12,36,34,0) 62%);
}
.wide-body{padding:46px 44px;}
.wide-body h3{font-size:clamp(20px,2vw,26px);line-height:1.4;font-weight:700;color:var(--ink-900);}
.wide-body > p{margin-top:14px;color:var(--ink-500);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;font-size:13px;color:var(--brand-600);
  background:rgba(20,179,156,.1);border-radius:999px;padding:6px 14px;
}

/* ============ 数据带 ============ */
.stat-band{
  margin-top:80px;background:var(--ink-900);border-radius:var(--radius-hero);
  padding:42px 46px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  color:rgba(255,255,255,.76);
}
.stat-band h3{color:#fff;font-size:clamp(19px,1.8vw,24px);line-height:1.45;font-weight:700;}
.stat-band p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.62);}
.stat-items{display:flex;gap:12px;flex-wrap:wrap;}
.stat-item{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
  border-radius:999px;padding:10px 18px;color:#fff;font-size:13px;
}
.stat-item strong{font-size:18px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;}
.progress{height:6px;border-radius:999px;background:rgba(255,255,255,.15);overflow:hidden;margin-top:22px;max-width:420px;}
.progress span{display:block;height:100%;width:74%;border-radius:999px;background:var(--grad-brand);}

/* ============ 场景清单卡 ============ */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-300);}
.check-icon{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background:rgba(20,179,156,.12);color:var(--brand-600);
  font-weight:700;font-size:15px;margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.check-card h3{font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;}
.check-card p{margin-top:10px;font-size:14.5px;color:var(--ink-500);line-height:1.75;}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  overflow:hidden;transition:box-shadow .24s ease,border-color .24s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{box-shadow:var(--shadow-sm);border-color:var(--brand-300);}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q .plus{
  width:26px;height:26px;flex:none;border-radius:999px;
  border:1.5px solid var(--line-strong);color:var(--brand-600);
  display:grid;place-items:center;font-size:15px;line-height:1;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease;
}
.faq-item[open] .faq-q .plus{transform:rotate(45deg);background:rgba(20,179,156,.12);border-color:var(--brand-300);}
.faq-a{
  position:relative;padding:0 22px 22px 32px;font-size:15px;color:var(--ink-500);line-height:1.85;
}
.faq-item[open] .faq-a::before{
  content:"";position:absolute;left:22px;top:4px;bottom:26px;width:3px;border-radius:3px;
  background:var(--brand-500);
}

/* ============ 结尾 CTA 条 ============ */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-left:6px solid var(--brand-500);
  border-radius:var(--radius-card);padding:30px 34px;box-shadow:var(--shadow-sm);
}
.cta-strip h3{font-size:clamp(19px,1.8vw,23px);font-weight:700;color:var(--ink-900);line-height:1.4;}
.cta-strip p{margin-top:8px;font-size:14px;color:var(--ink-500);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);margin-top:88px;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand .logo-text{color:#fff;font-size:18px;}
.footer-brand .logo-text small{color:rgba(255,255,255,.55);margin-top:4px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:360px;}
.footer-col h4{
  position:relative;color:#fff;font-size:14px;font-weight:600;margin:0 0 18px;padding-bottom:10px;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;border-radius:2px;background:var(--brand-300);
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col p{font-size:14px;color:rgba(255,255,255,.68);line-height:1.8;}
.footer-col a:hover{color:var(--brand-300);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .zigzag-row{grid-template-columns:1fr;gap:28px;}
  .zigzag-row.reverse .zigzag-media{order:0;}
  .wide-card{grid-template-columns:1fr;}
  .wide-media{min-height:260px;order:-1;}
  .wide-body{padding:34px 28px;}
  .stat-band{grid-template-columns:1fr;padding:34px;}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:992px){
  .nav-toggle{display:flex;}
  .nav-menu{
    position:absolute;left:16px;right:16px;top:calc(100% + 10px);
    background:#fff;border:1px solid var(--line);border-radius:18px;
    box-shadow:0 18px 42px rgba(10,60,55,.16);
    padding:12px;flex-direction:column;align-items:stretch;gap:4px;
    transform:translateY(-14px);opacity:0;visibility:hidden;margin:0;
    transition:transform .24s ease,opacity .24s ease,visibility .24s ease;
  }
  .site-header.nav-open .nav-menu{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-menu a{padding:13px 16px;border-radius:12px;}
  .nav-menu a::after{display:none;}
  .nav-menu a:hover{background:rgba(20,179,156,.07);transform:none;}
  .nav-menu a.is-active{background:rgba(20,179,156,.12);}
  .nav-menu .nav-menu-cta{
    display:flex;align-items:center;justify-content:center;
    margin-top:8px;height:46px;border-radius:999px;
    background:var(--grad-brand);color:#fff;font-weight:600;
    box-shadow:0 10px 22px rgba(15,167,155,.26);
  }
  .nav-cta{display:none;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .page-hero .container{padding-bottom:48px;}
  .check-grid{grid-template-columns:1fr;}
  .stat-items{gap:10px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
  .faq-a{padding-left:28px;}
  .faq-item[open] .faq-a::before{left:18px;}
  .faq-a{padding-right:18px;}
  .faq-q{padding:16px 18px;font-size:15px;}
}
@media (max-width:560px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .topbar-inner{padding:0 18px;}
  .nav-inner{padding:0 18px;gap:12px;}
  .logo-text{font-size:16px;}
  .logo-text small{display:none;}
  .hero-title{margin-top:20px;}
  .badge{font-size:12px;padding:7px 13px;}
  .stat-band{padding:28px 22px;}
  .wide-body{padding:28px 22px;}
  .cta-strip{padding:24px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:480px){
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .badge-row{gap:10px;}
}