/* roulang page: index */
:root{
  --c-primary:#0E7C9B;
  --c-primary-700:#0A5F78;
  --c-primary-100:#E4F3F7;
  --c-accent:#F2A23C;
  --c-accent-600:#D9821E;
  --c-ink:#17242E;
  --c-body:#41525F;
  --c-muted:#728594;
  --c-line:#E2EAF0;
  --c-bg:#F7FAFC;
  --c-surface:#FFFFFF;
  --sh-1:0 1px 2px rgba(14,50,72,.05);
  --sh-2:0 6px 20px rgba(14,50,72,.07);
  --sh-3:0 14px 36px rgba(14,50,72,.10);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-body);
  background:var(--c-surface);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-700);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--c-ink);letter-spacing:-.01em;}
.section-sub{margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-body);max-width:760px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-primary);background:var(--c-primary-100);border-radius:999px;padding:5px 14px;margin-bottom:16px;}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .22s ease;line-height:1;white-space:nowrap;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,124,155,.22);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;background:none;border:0;padding:0;cursor:pointer;}
.btn-text .arw{transition:transform .2s ease;}
.btn-text:hover{color:var(--c-primary-700);}
.btn-text:hover .arw{transform:translateX(3px);}
.badge{display:inline-block;font-size:13px;line-height:1;padding:6px 11px;border-radius:999px;background:var(--c-primary-100);color:var(--c-primary-700);font-weight:600;}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:120;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand:hover{color:inherit;}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--c-primary);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0;}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.brand-sub{font-size:12px;font-weight:500;letter-spacing:1px;color:var(--c-muted);}
.nav-list{display:flex;align-items:center;gap:28px;margin-left:12px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-body);padding:6px 0;transition:color .2s ease;}
.nav-link::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--c-primary);transform:translateX(-50%);transition:width .2s ease;}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:60%;}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{width:60%;}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:16px;}
.nav-search{width:220px;height:42px;border-radius:var(--r-sm);background:#F3F7FA;border:1px solid transparent;padding:0 14px;font-size:14px;transition:all .2s ease;}
.nav-search::placeholder{color:var(--c-muted);}
.nav-search:focus{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,155,.15);outline:none;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(23,36,46,.45);z-index:130;}
.drawer-mask.is-open{display:block;}
.drawer{position:fixed;top:0;right:-320px;width:300px;height:100%;background:#fff;z-index:140;padding:24px 22px;transition:right .28s ease;display:flex;flex-direction:column;box-shadow:var(--sh-3);}
.drawer.is-open{right:0;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);cursor:pointer;font-size:18px;color:var(--c-muted);line-height:1;}
.drawer-nav{margin-top:16px;display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{font-size:15px;font-weight:500;color:var(--c-body);padding:13px 14px;border-radius:var(--r-sm);border-left:3px solid transparent;}
.drawer-nav a.is-active{background:var(--c-primary-100);color:var(--c-primary-700);border-left-color:var(--c-primary);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-line);}

/* ============ Hero ============ */
.hero{position:relative;background:var(--c-bg);border-bottom:1px solid var(--c-line);overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(14,124,155,.16) 1px,transparent 1px);background-size:16px 16px;opacity:.22;pointer-events:none;}
.hero-inner{position:relative;padding:76px 0 84px;}
.hero-copy h1{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--c-ink);}
.hero-lead{margin-top:20px;font-size:17px;line-height:1.85;color:var(--c-body);max-width:560px;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-trust{margin-top:30px;display:flex;flex-wrap:wrap;gap:26px;padding-top:24px;border-top:1px dashed var(--c-line);}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-body);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);flex-shrink:0;}
.hero-media{position:relative;}
.hero-media img{width:100%;height:420px;object-fit:cover;border-radius:var(--r-lg);background:var(--c-primary-100);box-shadow:var(--sh-2);}
.hero-stat{position:absolute;right:-6px;bottom:-22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-3);padding:18px 22px;display:flex;align-items:center;gap:16px;}
.hero-stat strong{font-size:32px;font-weight:700;color:var(--c-primary);line-height:1;}
.hero-stat span{font-size:13px;color:var(--c-muted);line-height:1.5;display:block;}

/* ============ 能力条目区 ============ */
.capability-grid{display:flex;gap:56px;align-items:flex-start;}
.capability-side{flex:0 0 32%;max-width:32%;}
.capability-side p{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--c-body);}
.capability-list{flex:1;display:flex;flex-direction:column;gap:14px;}
.cap-item{position:relative;display:flex;align-items:flex-start;gap:20px;padding:22px 24px;background:#fff;border:1px solid var(--c-line);border-left:3px solid var(--c-primary);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:all .22s ease;}
.cap-item:hover{border-left-color:var(--c-accent);background:#FAFCFD;transform:translateX(4px);box-shadow:var(--sh-2);}
.cap-no{font-size:15px;font-weight:700;color:var(--c-primary);letter-spacing:.06em;padding-top:2px;flex-shrink:0;}
.cap-item h3{font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.5;}
.cap-item p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--c-body);}
.cap-arrow{margin-left:auto;color:var(--c-muted);font-size:18px;line-height:1;padding-top:4px;transition:transform .2s ease,color .2s ease;}
.cap-item:hover .cap-arrow{color:var(--c-primary);transform:translateX(3px);}

/* ============ 数据深条 ============ */
.stat-bar{background:var(--c-primary-700);padding:56px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.stat-cell strong{display:block;font-size:clamp(30px,3.4vw,40px);font-weight:700;color:var(--c-accent);line-height:1.1;letter-spacing:-.01em;}
.stat-cell span{display:block;margin-top:10px;font-size:14px;color:rgba(255,255,255,.8);}

/* ============ 案例区 ============ */
.case-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.case-grid{margin-top:40px;}
.case-card{background:#fff;border:1px solid var(--c-line);border-radius:16px;box-shadow:var(--sh-2);overflow:hidden;transition:all .22s ease;height:100%;display:flex;flex-direction:column;}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.case-card img{width:100%;height:100%;object-fit:cover;border-radius:0;background:var(--c-primary-100);}
.case-wide{position:relative;min-height:340px;}
.case-wide .case-wide-fig{position:absolute;inset:0;height:100%;}
.case-wide .case-wide-fig img{height:100%;}
.case-veil{position:absolute;left:0;right:0;bottom:0;padding:26px;background:linear-gradient(180deg,rgba(23,36,46,0) 0%,rgba(23,36,46,.82) 100%);color:#fff;border-radius:0 0 16px 16px;}
.case-veil h3{font-size:20px;font-weight:600;color:#fff;line-height:1.5;}
.case-veil p{margin-top:8px;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.86);}
.case-card-body{padding:22px 20px 20px;}
.case-card-body h3{font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.55;}
.case-card-body p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-body);}
.case-meta{margin-top:16px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);}
.case-meta .line{width:14px;height:1px;background:var(--c-line);}

/* ============ 方案区 ============ */
.plan-grid{display:flex;gap:48px;align-items:flex-start;}
.plan-anchor{flex:0 0 27%;max-width:27%;position:sticky;top:100px;}
.plan-anchor h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.35;color:var(--c-ink);}
.plan-anchor nav{margin-top:24px;display:flex;flex-direction:column;gap:6px;border-left:2px solid var(--c-line);}
.plan-anchor nav a{font-size:15px;font-weight:500;color:var(--c-body);padding:9px 0 9px 16px;border-left:2px solid transparent;margin-left:-2px;}
.plan-anchor nav a:hover{color:var(--c-primary);border-left-color:var(--c-primary);}
.plan-list{flex:1;display:flex;flex-direction:column;gap:20px;}
.plan-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:28px 26px;box-shadow:var(--sh-1);transition:all .22s ease;}
.plan-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.plan-card h3{font-size:20px;font-weight:600;color:var(--c-ink);line-height:1.5;}
.plan-points{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.plan-points li{position:relative;padding-left:18px;font-size:15px;line-height:1.8;color:var(--c-body);}
.plan-points li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.plan-card .btn-text{margin-top:18px;}

/* ============ CMS 资讯区 ============ */
.news-wrap{background:var(--c-bg);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.news-grid{margin-top:36px;}
.news-lead{display:flex;gap:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:all .22s ease;}
.news-lead:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.news-lead-fig{flex:0 0 44%;max-width:44%;}
.news-lead-fig img{width:100%;height:100%;min-height:250px;object-fit:cover;border-radius:0;background:var(--c-primary-100);}
.news-lead-body{padding:26px 26px 24px;display:flex;flex-direction:column;}
.news-lead-body h3{font-size:21px;font-weight:600;color:var(--c-ink);line-height:1.5;}
.news-lead-body h3 a{color:inherit;}
.news-lead-body h3 a:hover{color:var(--c-primary);text-decoration:underline;}
.news-lead-body p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-body);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:all .22s ease;height:100%;display:flex;flex-direction:column;overflow:hidden;}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.news-card-fig img{width:100%;height:172px;object-fit:cover;border-radius:0;background:var(--c-primary-100);}
.news-card-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-card-body h3{font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card-body h3 a{color:inherit;}
.news-card-body h3 a:hover{color:var(--c-primary);text-decoration:underline;}
.news-card-body p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--c-body);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-muted);}
.news-time{display:flex;align-items:center;gap:7px;}
.news-time .line{width:14px;height:1px;background:var(--c-line);}
.news-empty{background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-md);padding:64px 24px;text-align:center;}
.news-empty .ico{width:52px;height:52px;border-radius:50%;background:var(--c-primary-100);color:var(--c-primary);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px;font-weight:700;}
.news-empty p{font-size:15px;color:var(--c-body);}
.news-empty .btn-text{margin-top:14px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-head{text-align:center;margin-bottom:36px;}
.accordion{background:transparent;border:0;border-radius:0;margin:0;}
.accordion .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.accordion .accordion-title{display:block;background:transparent;border:0;padding:22px 52px 22px 18px;font-size:17px;font-weight:600;color:var(--c-ink);position:relative;line-height:1.6;transition:all .2s ease;}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{background:#FAFCFD;color:var(--c-primary);}
.accordion .accordion-title::before{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--c-primary);line-height:1;transition:transform .25s ease,color .25s ease;}
.accordion .accordion-item.is-active .accordion-title{color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);color:var(--c-accent);}
.accordion .accordion-content{border:0;background:transparent;padding:0 52px 24px 18px;font-size:15.5px;line-height:1.85;color:var(--c-body);}

/* ============ 联系区 ============ */
.contact-wrap{background:var(--c-bg);border-top:1px solid var(--c-line);}
.contact-grid{display:flex;gap:56px;align-items:flex-start;}
.contact-form-panel{flex:1;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:32px 30px;box-shadow:var(--sh-2);}
.contact-aside{flex:0 0 36%;max-width:36%;}
.contact-aside h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.35;color:var(--c-ink);}
.contact-aside p{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--c-body);}
.contact-list{margin-top:26px;display:flex;flex-direction:column;gap:16px;}
.contact-list li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--sh-1);}
.contact-list strong{display:block;font-size:14px;font-weight:600;color:var(--c-ink);}
.contact-list span{display:block;margin-top:4px;font-size:14px;color:var(--c-muted);line-height:1.7;}
.contact-ico{width:36px;height:36px;border-radius:10px;background:var(--c-primary-100);color:var(--c-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px;font-weight:700;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field input,.field textarea{width:100%;background:#F3F7FA;border:1px solid var(--c-line);border-radius:var(--r-sm);font-size:15px;padding:0 14px;transition:all .2s ease;}
.field input{height:46px;}
.field textarea{height:118px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,155,.15);outline:none;}
.field .tip{margin-top:6px;font-size:13px;color:var(--c-muted);}
.form-note{margin-top:14px;font-size:13px;color:var(--c-muted);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:#17242E;color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);transition:all .2s ease;}
.footer-links a:hover{color:var(--c-accent);transform:translateX(2px);}
.footer-contact li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.78);}
.footer-contact li strong{color:#fff;font-weight:600;margin-right:6px;}
.footer-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero-stat{right:8px;}
}
@media (max-width:1023px){
  .nav-list,.nav-search,.nav-tools .btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:60px;gap:16px;}
  .hero-inner{padding:52px 0 64px;}
  .hero-media{margin-top:40px;}
  .hero-media img{height:280px;}
  .hero-stat{position:static;margin-top:16px;box-shadow:var(--sh-2);}
  .capability-grid,.plan-grid,.contact-grid{flex-direction:column;gap:32px;}
  .capability-side,.plan-anchor,.contact-aside{flex:0 0 auto;max-width:100%;position:static;}
  .plan-anchor nav{flex-direction:row;flex-wrap:wrap;border-left:0;gap:10px;}
  .plan-anchor nav a{border-left:0;border:1px solid var(--c-line);border-radius:999px;padding:7px 14px;margin-left:0;font-size:14px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .container{padding:0 18px;}
  .hero-lead{font-size:16px;}
  .hero-trust{gap:16px;}
  .news-lead{flex-direction:column;}
  .news-lead-fig{flex:0 0 auto;max-width:100%;}
  .news-lead-fig img{min-height:190px;height:190px;}
  .case-wide{min-height:280px;}
  .accordion .accordion-title{padding:18px 44px 18px 14px;font-size:16px;}
  .accordion .accordion-content{padding:0 20px 20px 14px;font-size:15px;}
}
@media (max-width:519px){
  .brand-main{font-size:18px;}
  .brand-sub{font-size:11px;letter-spacing:.5px;}
  .hero-actions .btn{width:100%;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .contact-form-panel{padding:24px 20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E7C9B;
  --c-primary-700:#0A5F78;
  --c-primary-100:#E4F3F7;
  --c-accent:#F2A23C;
  --c-accent-600:#D9821E;
  --c-ink:#17242E;
  --c-body:#41525F;
  --c-muted:#728594;
  --c-line:#E2EAF0;
  --c-bg:#F7FAFC;
  --c-surface:#FFFFFF;
  --sh-1:0 1px 2px rgba(14,50,72,.05);
  --sh-2:0 6px 20px rgba(14,50,72,.07);
  --sh-3:0 14px 36px rgba(14,50,72,.10);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --container:1200px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.8;color:var(--c-body);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{display:block;max-width:100%;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease}
a:hover{color:var(--c-primary-700)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,32px)}
h3{font-size:19px;font-weight:600;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit;color:var(--c-ink)}
:focus-visible{outline:3px solid rgba(14,124,155,.35);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0;scroll-margin-top:92px}
.section--tight{padding:56px 0}
.section--plain{background:var(--c-surface)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-primary);background:var(--c-primary-100);border-radius:999px;padding:5px 12px;margin-bottom:16px}
.section-head h2{margin-bottom:14px}
.section-head p{font-size:16px;color:var(--c-body)}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.text-link span{transition:transform .2s ease;display:inline-block}
.text-link:hover span{transform:translateX(3px)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .2s ease;cursor:pointer}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700);transform:translateY(-1px)}
.btn-on-dark{background:var(--c-accent);color:#3a2408}
.btn-on-dark:hover{background:var(--c-accent-600);color:#2a1a05;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;background:var(--c-primary-100);color:var(--c-primary);font-size:13px;font-weight:600;white-space:nowrap}
.badge--accent{background:#FDF1E1;color:var(--c-accent-600)}
.badge--line{background:#fff;border:1px solid var(--c-line);color:var(--c-body);font-weight:500}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-inner{display:flex;align-items:center;gap:34px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--c-primary);display:grid;place-items:center;flex-shrink:0}
.brand-mark svg{width:21px;height:21px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:20px;font-weight:700;color:var(--c-ink)}
.brand-sub{font-size:12px;font-weight:500;letter-spacing:1px;color:var(--c-primary)}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-body);padding:9px 0}
.nav-link::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--c-primary);transform:translateX(-50%);transition:width .2s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{width:60%}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{width:220px;height:42px;border-radius:var(--r-sm);border:1px solid transparent;background:#F3F7FA;padding:0 14px;font-size:14px;transition:all .2s ease}
.nav-search::placeholder{color:var(--c-muted)}
.nav-search:focus{outline:none;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,155,.15)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;align-items:center;justify-content:center}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--c-ink);transition:background .2s ease}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);transition:transform .25s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-overlay{position:fixed;inset:0;background:rgba(23,36,46,.45);opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:55}
body.nav-open .nav-overlay{opacity:1;visibility:visible}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--c-muted)}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#C3D2DC}
.crumb .current{color:var(--c-primary);font-weight:600}

/* Hero */
.page-hero{position:relative;background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:64px 0 72px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(14,124,155,.35) 1px,transparent 1px);background-size:9px 9px;opacity:.05;pointer-events:none}
.page-hero .grid-x{position:relative}
.hero-copy .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-100);border-radius:999px;padding:5px 14px;margin-bottom:18px}
.hero-copy h1{margin-bottom:18px}
.hero-copy .hero-sub{font-size:17px;line-height:1.85;color:var(--c-body);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-body);background:#F3F7FA;border-radius:999px;padding:7px 14px}
.hero-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);flex-shrink:0}
.hero-media{position:relative;margin-top:8px}
.hero-media img{width:100%;height:360px;object-fit:cover;border-radius:var(--r-lg);background:var(--c-primary-100);box-shadow:var(--sh-2)}
.hero-stat{position:absolute;right:18px;bottom:-22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-3);padding:16px 20px;display:flex;gap:22px}
.hero-stat div{display:flex;flex-direction:column}
.hero-stat strong{font-size:22px;color:var(--c-primary);font-variant-numeric:tabular-nums}
.hero-stat span{font-size:12px;color:var(--c-muted)}

/* 筛选排序条 */
.filter-bar{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:18px 20px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
.filter-group{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.filter-label{font-size:13px;font-weight:600;color:var(--c-muted);letter-spacing:.04em}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{height:38px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;color:var(--c-body);font-size:14px;font-weight:500;transition:all .2s ease}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.filter-right{display:flex;align-items:center;gap:12px}
.select-wrap{position:relative;display:inline-flex;align-items:center}
.select-wrap select{appearance:none;-webkit-appearance:none;height:44px;min-width:158px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;padding:0 40px 0 14px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}
.select-wrap select:hover{border-color:var(--c-primary)}
.select-wrap::after{content:"";position:absolute;right:16px;width:7px;height:7px;border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);transform:rotate(45deg) translate(-2px,-2px);pointer-events:none}
.view-toggle{display:flex;border:1px solid var(--c-line);border-radius:var(--r-sm);overflow:hidden;background:#fff}
.view-toggle button{width:44px;height:42px;border:0;background:transparent;display:grid;place-items:center;transition:background .2s ease}
.view-toggle button:hover{background:#F3F7FA}
.view-toggle button.is-active{background:var(--c-primary-100)}
.view-toggle svg{width:18px;height:18px;fill:var(--c-muted)}
.view-toggle button.is-active svg{fill:var(--c-primary)}

/* 场景卡片（3 列） */
.scene-grid .cell{margin-bottom:24px}
.scene-card{position:relative;height:100%;background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-primary);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:22px 20px 20px;display:flex;gap:16px;align-items:flex-start;transition:transform .22s ease,box-shadow .22s ease,border-left-color .22s ease}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-left-color:var(--c-accent)}
.scene-card .scene-main{flex:1 1 auto;min-width:0}
.scene-card .badge{position:absolute;top:16px;right:16px}
.scene-card h3{margin:26px 0 10px;font-size:18px}
.scene-card p{font-size:14.5px;color:var(--c-body);line-height:1.75}
.scene-card .scene-foot{margin-top:16px}
.scene-thumb{width:60px;height:60px;border-radius:var(--r-sm);object-fit:cover;background:var(--c-primary-100);flex-shrink:0;order:2}

/* 流程时间线 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:flow}
.flow-item{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:24px 20px;transition:transform .22s ease,box-shadow .22s ease}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.flow-item::after{content:"";position:absolute;top:44px;right:-24px;width:24px;height:1px;background:var(--c-line)}
.flow-item:last-child::after{display:none}
.flow-num{width:40px;height:40px;border-radius:12px;background:var(--c-primary-100);color:var(--c-primary);display:grid;place-items:center;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px}
.flow-item h3{font-size:17px;margin-bottom:10px}
.flow-item p{font-size:14px;color:var(--c-body);line-height:1.75}
.flow-time{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:12.5px;color:var(--c-muted)}

/* 准备清单 */
.prep{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center}
.prep-copy h2{margin-bottom:16px}
.prep-copy p{font-size:16px;margin-bottom:18px}
.prep-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:12px 26px}
.prep-list li{display:flex;gap:14px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--c-line)}
.prep-list li:last-child{border-bottom:0}
.prep-list .tick{width:26px;height:26px;border-radius:8px;background:var(--c-primary-100);display:grid;place-items:center;flex-shrink:0;margin-top:3px}
.prep-list .tick svg{width:14px;height:14px;stroke:var(--c-primary);stroke-width:3;fill:none;stroke-linecap:round;stroke-linejoin:round}
.prep-list strong{display:block;font-size:15.5px;color:var(--c-ink);font-weight:600}
.prep-list span{font-size:14px;color:var(--c-body)}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-accordion{margin:0;border:0;background:transparent;border-top:1px solid var(--c-line)}
.faq-accordion .accordion-item{border-bottom:1px solid var(--c-line);background:transparent;transition:background .2s ease}
.faq-accordion .accordion-item.is-active{background:#FBFDFE;box-shadow:inset 3px 0 0 var(--c-primary)}
.faq-accordion .accordion-title{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 20px;font-size:17px;font-weight:600;color:var(--c-ink);border:0;transition:color .2s ease}
.faq-accordion .accordion-title::before{display:none}
.faq-accordion .accordion-title:hover{color:var(--c-primary)}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--c-primary)}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-muted);border-radius:2px;transition:background .25s ease}
.faq-icon::before{top:9px;left:0;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-accordion .accordion-item.is-active .faq-icon{transform:rotate(45deg)}
.faq-accordion .accordion-item.is-active .faq-icon::before,.faq-accordion .accordion-item.is-active .faq-icon::after{background:var(--c-accent)}
.faq-accordion .accordion-content{padding:0 20px 24px;border:0;background:transparent;color:var(--c-body);font-size:15.5px;line-height:1.85}

/* CTA / 联系 */
.cta-band{background:var(--c-primary-700);color:#fff;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta-copy h2{color:#fff;margin-bottom:16px}
.cta-copy p{color:rgba(255,255,255,.8);font-size:16px;max-width:520px}
.cta-copy .hero-actions{margin-top:28px}
.cta-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px}
.cta-meta div{font-size:14px;color:rgba(255,255,255,.78)}
.cta-meta strong{display:block;font-size:19px;color:var(--c-accent);font-variant-numeric:tabular-nums}
.form-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:30px 28px}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-tip{font-size:13.5px;color:var(--c-muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;height:46px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#F7FAFC;padding:0 14px;font-size:14.5px;transition:all .2s ease}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,155,.15)}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,#728594 50%),linear-gradient(135deg,#728594 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field .err{display:none}
.form-card .btn-primary{width:100%}

/* 页脚 */
.site-footer{background:#17242E;color:rgba(255,255,255,.78);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-main{color:#fff;font-size:20px;font-weight:700}
.footer-brand .brand-sub{color:var(--c-accent);font-size:12px;font-weight:500;letter-spacing:1px}
.footer-brand .brand-mark{background:var(--c-primary)}
.site-footer p{color:rgba(255,255,255,.72);line-height:1.85}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,.78);display:inline-block}
.footer-links a:hover{color:var(--c-accent);transform:translateX(-2px)}
.footer-contact{display:flex;flex-direction:column;gap:12px;color:rgba(255,255,255,.78)}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}

/* 响应式 */
@media screen and (max-width:1199px){
  .nav-inner{gap:24px}
  .nav-search{width:180px}
}
@media screen and (max-width:1023px){
  :root{--sec:64px}
  .nav-inner{height:60px}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-list{position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);background:#fff;flex-direction:column;align-items:stretch;gap:6px;padding:84px 18px 28px;transform:translateX(105%);transition:transform .3s ease;box-shadow:-14px 0 40px rgba(14,50,72,.14);z-index:60;overflow-y:auto}
  body.nav-open .nav-list{transform:translateX(0)}
  .nav-link{padding:14px 14px;border-radius:var(--r-sm);font-size:16px}
  .nav-link::after{display:none}
  .nav-link:hover,.nav-link.is-active{background:var(--c-primary-100);color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary)}
  .hero-media{margin-top:34px}
  .hero-media img{height:300px}
  .hero-stat{position:static;margin-top:18px;right:auto;bottom:auto}
  .hero-stat div{flex:1}
  .page-hero{padding:52px 0 60px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-item::after{display:none}
  .prep{grid-template-columns:1fr;gap:32px}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media screen and (max-width:767px){
  :root{--sec:56px}
  .container{padding:0 18px}
  .section-head{margin-bottom:32px}
  h1{font-size:clamp(26px,7vw,32px)}
  h2{font-size:24px}
  .hero-media img{height:220px}
  .hero-stat{flex-wrap:wrap;gap:16px;padding:14px 16px}
  .filter-bar{padding:16px}
  .filter-right{width:100%}
  .select-wrap{flex:1}
  .select-wrap select{width:100%;min-width:0}
  .scene-card{flex-direction:column;gap:14px}
  .scene-thumb{order:0}
  .scene-card h3{margin-top:18px}
  .flow{grid-template-columns:1fr}
  .prep-list{padding:8px 18px}
  .faq-accordion .accordion-title{padding:18px 14px;font-size:16px}
  .faq-accordion .accordion-content{padding:0 14px 20px}
  .cta-band{padding:56px 0}
  .form-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{height:46px}
}
@media screen and (max-width:519px){
  .brand-main{font-size:18px}
  .brand-sub{letter-spacing:.5px}
  .hero-actions .btn{width:100%}
  .hero-points li{font-size:13px;padding:6px 12px}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:12px}
}

/* roulang page: article */
:root{
  --c-primary:#0E7C9B;
  --c-primary-700:#0A5F78;
  --c-primary-100:#E4F3F7;
  --c-accent:#F2A23C;
  --c-accent-600:#D9821E;
  --c-ink:#17242E;
  --c-body:#41525F;
  --c-muted:#728594;
  --c-line:#E2EAF0;
  --c-bg:#F7FAFC;
  --c-surface:#FFFFFF;
  --sh-1:0 1px 2px rgba(14,50,72,.05);
  --sh-2:0 6px 20px rgba(14,50,72,.07);
  --sh-3:0 14px 36px rgba(14,50,72,.10);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.8;color:var(--c-body);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--c-primary-700)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
button{font-family:inherit}
input,textarea,select{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,124,155,.28)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;background:none;border:0;padding:0;cursor:pointer}
.btn-text .arrow{transition:transform .22s ease}
.btn-text:hover{color:var(--c-primary-700)}
.btn-text:hover .arrow{transform:translateX(3px)}
.badge{display:inline-block;background:var(--c-primary-100);color:var(--c-primary);font-size:13px;font-weight:600;padding:3px 10px;border-radius:999px;line-height:1.6}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:var(--r-sm);background:var(--c-primary);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
.brand-sub{font-size:12px;font-weight:500;letter-spacing:1px;color:var(--c-muted)}
.nav-list{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-body);padding:6px 0}
.nav-link::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:0;height:2px;background:var(--c-primary);transition:width .2s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after,.nav-link.is-active::after{width:60%}
.nav-link.is-active{color:var(--c-primary)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{
  width:220px;height:40px;border-radius:var(--r-sm);border:1px solid transparent;
  background:#F3F7FA;padding:0 14px;font-size:14px;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.nav-search::placeholder{color:var(--c-muted)}
.nav-search:focus{outline:none;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,155,.15)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);cursor:pointer;align-items:center;justify-content:center;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(14,124,155,.28)}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:90;width:300px;max-width:86vw;height:100%;
  background:#fff;box-shadow:var(--sh-3);padding:22px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s ease;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;cursor:pointer;font-size:18px;color:var(--c-muted);line-height:1}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-links a{display:block;padding:12px 14px;border-radius:var(--r-sm);color:var(--c-body);font-size:15px;font-weight:500}
.drawer-links a:hover{background:var(--c-primary-100);color:var(--c-primary-700)}
.drawer-links a.is-active{background:var(--c-primary-100);color:var(--c-primary-700);box-shadow:inset 3px 0 0 var(--c-primary)}
.drawer-mask{position:fixed;inset:0;background:rgba(23,36,46,.42);z-index:85;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 面包屑与文章头 ============ */
.crumbs-band{padding:22px 0 0}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#B9C7D1}
.crumbs .current{color:var(--c-primary);font-weight:600}
.post-head{padding:20px 0 36px}
.post-head h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em;max-width:900px;margin:14px 0 12px;word-break:break-word}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:13px;color:var(--c-muted)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-accent);display:inline-block}

/* ============ 正文布局 ============ */
.post-main{padding:0 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:56px;justify-content:center;align-items:start}
.article-shell{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:44px}
.article-content{font-size:17px;line-height:1.9;color:var(--c-body);word-break:break-word}
.article-content p{margin:0 0 1.1em}
.article-content h2{position:relative;font-size:26px;line-height:1.4;font-weight:700;color:var(--c-ink);margin:40px 0 16px;padding-left:16px}
.article-content h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--c-primary)}
.article-content h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--c-ink);margin:28px 0 12px}
.article-content h4{font-size:17px;font-weight:600;color:var(--c-ink);margin:20px 0 10px}
.article-content ul,.article-content ol{padding-left:1.3em;margin:0 0 1.2em}
.article-content li{margin-bottom:.45em}
.article-content blockquote{margin:24px 0;padding:16px 20px;background:var(--c-primary-100);border-left:4px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-body);font-size:16px}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:12px;margin:24px auto;box-shadow:var(--sh-1)}
.article-content figure{margin:24px 0}
.article-content figcaption,.article-content .caption{font-size:12px;color:var(--c-muted);text-align:center;margin-top:8px}
.article-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--c-primary-700)}
.article-content table{width:100%;border-collapse:separate;border-spacing:0;margin:22px 0;font-size:15px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden}
.article-content thead th{background:var(--c-primary-100);color:var(--c-primary-700);font-weight:600;text-align:left}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--c-line)}
.article-content tbody tr:last-child td{border-bottom:0}
.article-content tbody tr:hover{background:#FAFCFD}
.article-content code{background:#F1F6F9;color:var(--c-primary-700);font-size:14px;padding:2px 6px;border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-content pre{background:var(--c-ink);color:#E6EEF3;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;margin:22px 0}
.article-content pre code{background:none;color:inherit;padding:0}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}

/* ============ 侧栏 ============ */
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:20px;position:sticky;top:96px}
.side-card + .side-card{margin-top:20px;position:static}
.side-card h3{font-size:16px;font-weight:700;color:var(--c-ink);margin-bottom:12px}
.side-card p{font-size:14px;color:var(--c-body);margin:0 0 12px}
.side-list{display:flex;flex-direction:column}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--c-body);padding:10px 0;border-bottom:1px dashed var(--c-line);transition:padding-left .2s ease,color .2s ease}
.side-list a:last-child{border-bottom:0}
.side-list a:hover{color:var(--c-primary);padding-left:4px}
.side-list .tag{font-size:12px;color:var(--c-muted);flex:0 0 auto}
.side-note{font-size:13px;color:var(--c-muted);line-height:1.75}

/* ============ 文末操作区 ============ */
.post-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line)}
.post-actions .group{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.share-tip{font-size:13px;color:var(--c-muted)}
.icon-btn{height:40px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;color:var(--c-body);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:#FAFCFD}

/* ============ 空态 ============ */
.empty-state{text-align:center;padding:56px 24px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;background:var(--c-primary-100);display:flex;align-items:center;justify-content:center}
.empty-icon svg{width:26px;height:26px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--c-muted);margin-bottom:18px}

/* ============ 相关推荐 ============ */
.related{padding:0 0 88px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3}
.section-head p{font-size:14px;color:var(--c-muted);margin:6px 0 0}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:20px 20px 18px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D5E3EB}
.rel-card .badge{align-self:flex-start;margin-bottom:12px}
.rel-card h3{font-size:18px;line-height:1.45;font-weight:600;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card h3 a{color:var(--c-ink)}
.rel-card:hover h3 a{color:var(--c-primary)}
.rel-card p{font-size:14px;color:var(--c-muted);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted)}

/* ============ CTA 条 ============ */
.cta-band{background:var(--c-primary-700);padding:56px 0}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ============ 页脚 ============ */
.site-footer{background:#17242E;color:rgba(255,255,255,.78);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.6)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);margin:0}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column}
.footer-links a{display:block;font-size:14px;color:rgba(255,255,255,.78);padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--c-accent);transform:translateX(2px)}
.footer-contact{list-style:none;margin:0;padding:0;font-size:14px}
.footer-contact li{margin-bottom:10px;color:rgba(255,255,255,.78)}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-list,.nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .side-card{position:static}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:767px){
  .nav-inner{height:60px;gap:12px}
  .article-shell{padding:26px 20px}
  .article-content{font-size:16px}
  .article-content h2{font-size:22px;margin-top:32px}
  .article-content h3{font-size:18px}
  .post-main,.related{padding-bottom:56px}
  .site-footer{padding-top:48px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .post-meta{gap:14px}
  .post-actions{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .cta-actions{width:100%}
  .icon-btn{width:100%}
  .side-card{padding:16px}
}

/* roulang page: category2 */
:root{
  --c-primary:#0E7C9B;
  --c-primary-700:#0A5F78;
  --c-primary-100:#E4F3F7;
  --c-accent:#F2A23C;
  --c-accent-600:#D9821E;
  --c-ink:#17242E;
  --c-body:#41525F;
  --c-muted:#728594;
  --c-line:#E2EAF0;
  --c-bg:#F7FAFC;
  --c-surface:#FFFFFF;
  --sh-1:0 1px 2px rgba(14,50,72,.05);
  --sh-2:0 6px 20px rgba(14,50,72,.07);
  --sh-3:0 14px 36px rgba(14,50,72,.10);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:19px;line-height:1.4;font-weight:600;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary-700);}
img{max-width:100%;display:block;border:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(14,124,155,.35);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tint{background:var(--c-surface);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-head p{margin:10px 0 0;color:var(--c-muted);font-size:15px;max-width:640px;}
.sec-link{font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.sec-link i{transition:transform var(--ease);}
.sec-link:hover i{transform:translateX(3px);}
.num{font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 40px;
  box-shadow:0 4px 12px rgba(14,124,155,.28);
}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;}
.brand-sub{font-size:12px;font-weight:500;letter-spacing:1px;color:var(--c-muted);}
.nav-list{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--c-body);border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:20%;right:20%;bottom:4px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  width:220px;height:42px;border-radius:var(--r-sm);
  background:#F3F7FA;border:1px solid transparent;
  padding:0 14px;font-size:14px;color:var(--c-ink);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search::placeholder{color:var(--c-muted);}
.nav-search:focus{outline:none;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,124,155,.15);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transform:translateX(-50%);
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";left:0;top:-6px;transform:none;}
.nav-toggle span::after{content:"";left:0;top:6px;transform:none;}
.site-header.is-open .nav-toggle span{background:transparent;}
.site-header.is-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
.site-header.is-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(14,124,155,.22);}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700);}
.btn-light{background:#fff;color:var(--c-primary-700);}
.btn-light:hover{background:var(--c-primary-100);color:var(--c-primary-700);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
.btn-text i{transition:transform var(--ease);}
.btn-text:hover i{transform:translateX(3px);}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-line);}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:16px 0;font-size:13px;color:var(--c-muted);}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C7D3DC;}
.crumb .cur{color:var(--c-primary);font-weight:600;}

/* ============ 分类页头 ============ */
.page-hero{
  background:var(--c-surface);
  padding:56px 0 72px;
  position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(14,124,155,.30) 1px,transparent 1px);
  background-size:8px 8px;opacity:.35;pointer-events:none;
}
.page-hero .grid-x{position:relative;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-100);color:var(--c-primary-700);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.page-hero h1{margin-bottom:18px;}
.page-hero .lead{font-size:17px;color:var(--c-body);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;font-size:14px;color:var(--c-muted);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points i{color:var(--c-primary);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;height:360px;object-fit:cover;border-radius:var(--r-lg);
  background:var(--c-primary-100);box-shadow:var(--sh-3);
}
.float-card{
  position:absolute;right:-8px;bottom:-18px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:16px 20px;box-shadow:var(--sh-3);min-width:190px;
}
.float-card .fc-num{font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.1;}
.float-card .fc-label{font-size:13px;color:var(--c-muted);margin-top:4px;}

/* ============ 数据深条 ============ */
.stat-bar{background:var(--c-primary-700);padding:44px 0;position:relative;overflow:hidden;}
.stat-bar::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.stat-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.stat-grid .st-num{font-size:clamp(28px,3.4vw,38px);font-weight:700;color:var(--c-accent);line-height:1.15;}
.stat-grid .st-label{font-size:14px;color:rgba(255,255,255,.8);margin-top:6px;}

/* ============ 编号能力列表 ============ */
.ability .intro h2{margin-bottom:14px;}
.ability .intro p{color:var(--c-muted);font-size:15px;}
.ability-list{display:flex;flex-direction:column;gap:16px;}
.ability-item{
  display:flex;align-items:flex-start;gap:18px;
  background:#fff;border:1px solid var(--c-line);border-left:3px solid var(--c-primary);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--sh-1);
  transition:border-left-color var(--ease),background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.ability-item:hover{border-left-color:var(--c-accent);background:#FAFCFD;transform:translateX(4px);box-shadow:var(--sh-2);}
.ability-item .no{
  font-family:"Inter",system-ui,sans-serif;font-size:15px;font-weight:700;color:var(--c-primary);
  background:var(--c-primary-100);border-radius:8px;min-width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 36px;
}
.ability-item .ab-body{flex:1 1 auto;}
.ability-item .ab-body h3{margin-bottom:6px;}
.ability-item .ab-body p{margin:0;font-size:15px;color:var(--c-body);}
.ability-item .ab-arrow{color:var(--c-muted);transition:color var(--ease),transform var(--ease);align-self:center;}
.ability-item:hover .ab-arrow{color:var(--c-primary);transform:translateX(4px);}

/* ============ 场景卡片（宽卡 2 列） ============ */
.scene-card{
  display:flex;gap:18px;align-items:flex-start;height:100%;
  background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);padding:22px 22px 20px;box-shadow:var(--sh-1);position:relative;
  transition:transform var(--ease),box-shadow var(--ease),border-left-color var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-left-color:var(--c-accent);}
.scene-card .sc-main{flex:1 1 auto;min-width:0;}
.scene-card h3{margin:10px 0 8px;font-size:18px;}
.scene-card h3 a{color:var(--c-ink);}
.scene-card h3 a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.scene-card .sc-desc{
  font-size:15px;color:var(--c-body);margin:0 0 14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.scene-card .sc-meta{font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px;}
.scene-card .sc-meta i{color:var(--c-muted);}
.scene-card .sc-thumb{
  width:60px;height:60px;border-radius:var(--r-sm);object-fit:cover;flex:0 0 60px;
  background:var(--c-primary-100);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-primary-100);color:var(--c-primary-700);
  font-size:13px;font-weight:600;padding:4px 10px;border-radius:999px;
}
.badge-accent{background:#FDF1DF;color:var(--c-accent-600);}
.scene-card .badge{position:absolute;top:16px;right:18px;}

/* ============ 处理流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.flow-step{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform var(--ease),box-shadow var(--ease);
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.flow-step .fs-no{
  font-family:"Inter",system-ui,sans-serif;font-size:13px;font-weight:700;color:#fff;
  background:var(--c-primary);border-radius:999px;padding:3px 12px;display:inline-block;margin-bottom:14px;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--c-body);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-wrap .accordion{border:0;background:transparent;margin:0;}
.faq-wrap .accordion-item{border:0;border-bottom:1px solid var(--c-line);}
.faq-wrap .accordion-item:first-child{border-top:1px solid var(--c-line);}
.faq-wrap .accordion-title{
  position:relative;font-size:17px;font-weight:600;color:var(--c-ink);
  padding:22px 48px 22px 18px;border:0;background:transparent;
  transition:color var(--ease),background var(--ease);
}
.faq-wrap .accordion-title::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:3px;
  background:var(--c-primary);opacity:0;transition:opacity var(--ease);
}
.faq-wrap .accordion-title:hover{color:var(--c-primary);background:#FAFCFD;}
.faq-wrap .accordion-title::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  font-size:14px;color:var(--c-muted);transition:transform var(--ease),color var(--ease);
}
.faq-wrap .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.faq-wrap .accordion-item.is-active .accordion-title::before{opacity:1;}
.faq-wrap .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(45deg);color:var(--c-accent);}
.faq-wrap .accordion-content{padding:0 48px 24px 18px;border:0;background:transparent;color:var(--c-body);font-size:15.5px;}

/* ============ 底部 CTA ============ */
.cta-bar{background:var(--c-primary-700);padding:60px 0;position:relative;overflow:hidden;}
.cta-bar::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:8px 8px;opacity:.5;pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:620px;}

/* ============ 页脚 ============ */
.site-footer{background:#17242E;color:rgba(255,255,255,.78);padding:64px 0 0;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);margin:0;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.78);font-size:14px;transition:color var(--ease),transform var(--ease);}
.footer-links a:hover{color:var(--c-accent);transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-contact strong{color:rgba(255,255,255,.92);font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .nav-list{
    position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:80px 20px 28px;margin:0;overflow-y:auto;
    box-shadow:var(--sh-3);transform:translateX(105%);transition:transform var(--ease);z-index:70;
  }
  .site-header.is-open .nav-list{transform:translateX(0);}
  .nav-link{height:50px;padding:0 16px;border-radius:var(--r-sm);border-left:3px solid transparent;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--c-primary-100);border-left-color:var(--c-primary);}
  .nav-search{display:none;}
  .nav-toggle{display:inline-block;}
  .nav-tools{gap:10px;}
  .nav-inner{gap:16px;height:64px;}
  .hero-media img{height:300px;}
  .flow{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:639px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .page-hero{padding:36px 0 52px;}
  .page-hero .lead{font-size:16px;}
  .hero-media img{height:220px;border-radius:var(--r-md);}
  .float-card{right:8px;bottom:-14px;padding:12px 16px;min-width:150px;}
  .float-card .fc-num{font-size:24px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .flow{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .faq-wrap .accordion-title{padding:18px 44px 18px 14px;font-size:16px;}
  .faq-wrap .accordion-content{padding:0 20px 20px 14px;font-size:15px;}
  .scene-card{flex-direction:row;}
  .brand-main{font-size:18px;}
}
@media screen and (min-width:640px) and (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}