/* roulang page: index */
:root{
  --c-primary:#1E4E79;
  --c-primary-d:#163A5C;
  --c-primary-l:#EAF1F7;
  --c-accent:#E3A33B;
  --c-accent-l:#FCF3E2;
  --c-accent-d:#A9701F;
  --c-ink:#16202E;
  --c-text:#26333F;
  --c-muted:#6B7A89;
  --c-bg:#FAFAF7;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F8;
  --c-line:#E3E8ED;
  --c-line-2:#EFF2F5;
  --c-success:#3F8A6E;
  --c-warn:#C4622D;
  --c-error:#C0392B;
  --r-card:14px;
  --r-lg:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(22,32,46,.04), 0 8px 24px rgba(22,32,46,.06);
  --sh-2:0 2px 4px rgba(22,32,46,.05), 0 14px 32px rgba(22,32,46,.09);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-d)}
img{max-width:100%;height:auto;display:block;border:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container .row{max-width:none;margin-left:-12px;margin-right:-12px}
.container .row .columns,.container .row .column{padding-left:12px;padding-right:12px}
.section{padding:88px 0}
.section-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.3;color:var(--c-ink);letter-spacing:0}
.sec-sub{font-size:13px;color:var(--c-muted);margin-top:10px;line-height:1.7}
.sec-line{width:36px;height:3px;background:var(--c-accent);border-radius:2px;margin-bottom:16px}

/* Dock 导航 */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:120;display:flex;justify-content:center;padding:0 16px;pointer-events:none}
.dock{
  pointer-events:auto;position:relative;
  width:min(1080px,100%);
  height:64px;
  display:flex;align-items:center;gap:10px;
  padding:0 10px 0 14px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  border-radius:20px;
  box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  transition:height .22s ease,box-shadow .22s ease;
}
.dock.is-scrolled{height:56px;box-shadow:var(--sh-2)}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--c-primary);
  color:#fff;font-size:15px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  letter-spacing:0;flex-shrink:0;
}
.brand-text{font-size:16px;font-weight:600;color:var(--c-ink);letter-spacing:.01em;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto;padding:0}
.dock-nav a{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 12px;border-radius:10px;
  font-size:14px;color:var(--c-text);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.dock-nav a:hover{color:var(--c-primary);background:var(--c-primary-l)}
.dock-nav a.active{color:var(--c-primary);font-weight:600}
.dock-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:3px;
  transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--c-accent);
}
.dock-right{display:flex;align-items:center;gap:8px;flex-shrink:0}
.dock-icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-muted);transition:background .18s ease,color .18s ease;
}
.dock-icon-btn:hover{background:var(--c-surface-2);color:var(--c-primary)}
.dock-menu-btn{
  display:none;width:40px;height:40px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--c-ink);
  border:1px solid var(--c-line);
}
.dock-menu-btn:hover{background:var(--c-surface-2)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:none;box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary)}
.btn-block{width:100%}
.btn-sm{height:38px;font-size:14px;padding:0 16px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--c-primary)}
.link-arrow svg{transition:transform .18s ease;flex-shrink:0}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:hover{text-decoration:underline}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:500;letter-spacing:0;
  background:var(--c-accent-l);color:var(--c-accent-d);
}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:99px;font-size:13px;color:var(--c-text);
  background:#fff;border:1px solid var(--c-line);
  transition:all .18s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.is-on{background:var(--c-primary-l);border-color:var(--c-primary);color:var(--c-primary);font-weight:600}

/* Hero */
.hero{
  position:relative;
  padding:150px 0 92px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.78)}
.hero .container{position:relative;z-index:1}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-accent-d);background:var(--c-accent-l);padding:5px 12px;border-radius:99px;font-weight:500}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:700;line-height:1.25;letter-spacing:-.01em;
  color:var(--c-ink);margin:20px 0 0;
}
.hero-sub{font-size:17px;line-height:1.75;color:var(--c-text);margin-top:18px;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:26px;font-size:14px;color:var(--c-muted)}
.hero-trust span{display:inline-flex;align-items:center}
.hero-trust span+span::before{content:"";width:1px;height:12px;background:var(--c-line);margin:0 14px;display:inline-block}
.hero-figure{position:relative}
.hero-img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.hero-note{
  position:relative;margin-top:-34px;margin-left:auto;margin-right:20px;
  width:min(260px,90%);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:14px 18px;
}
.hero-note .n{font-size:22px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-note .t{font-size:12px;color:var(--c-muted);margin-top:4px}

/* 指标 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:24px;transition:transform .18s ease,box-shadow .18s ease;
}
.metric:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.metric .num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.15;font-variant-numeric:tabular-nums}
.metric .num small{font-size:15px;font-weight:600;margin-left:4px}
.metric .tick{width:28px;height:3px;background:var(--c-accent);border-radius:2px;margin:14px 0 10px}
.metric .label{font-size:13px;color:var(--c-muted);line-height:1.7}

/* Bento 矩阵 */
.bento{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.bento-side{display:grid;gap:24px;align-content:stretch}
.bcard{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:26px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.bcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D2DDE7}
.bcard-main{
  padding:34px;
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(227,163,59,.10) 0%, rgba(255,255,255,0) 55%),
    var(--c-surface);
  justify-content:space-between;
}
.bcard-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-l);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.bcard h3{font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.4}
.bcard-main h3{font-size:22px}
.bcard p{font-size:14px;line-height:1.8;color:var(--c-muted);margin-top:10px}
.bcard .link-arrow{margin-top:auto;padding-top:18px}
.bcard-main .bcard-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.bcard-tags .badge{background:var(--c-primary-l);color:var(--c-primary)}

/* 对比 */
.compare{display:grid;grid-template-columns:1fr 56px 1fr;gap:0;align-items:stretch}
.cmp-col{border-radius:var(--r-lg);padding:28px}
.cmp-before{background:var(--c-surface-2);border:1px solid var(--c-line-2)}
.cmp-after{background:#fff;border:1px solid var(--c-primary);box-shadow:var(--sh-1)}
.cmp-head{font-size:15px;font-weight:600;color:var(--c-ink);display:flex;align-items:center;gap:8px}
.cmp-head .dot{width:8px;height:8px;border-radius:50%;background:#B9C4CE}
.cmp-after .cmp-head .dot{background:var(--c-primary)}
.cmp-list{margin-top:18px;display:grid;gap:12px}
.cmp-list li{display:flex;gap:10px;font-size:14px;line-height:1.75;color:var(--c-text)}
.cmp-list li svg{flex-shrink:0;margin-top:5px}
.cmp-mid{display:flex;align-items:center;justify-content:center}
.cmp-arrow{
  width:36px;height:36px;border-radius:50%;
  background:var(--c-accent-l);color:var(--c-accent-d);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid #F1DFC0;
}
.cmp-sum{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:24px;padding:22px 26px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
}
.cmp-sum div{font-size:13px;color:var(--c-muted);line-height:1.7}
.cmp-sum strong{display:block;font-size:20px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;margin-bottom:2px}

/* 资讯卡片 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-l);border-radius:var(--r-img);margin:12px 12px 0}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-thumb img{transform:scale(1.02)}
.post-body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1}
.post-body .badge{align-self:flex-start}
.post-title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--c-ink);
  margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.post-card:hover .post-title{color:var(--c-primary)}
.post-desc{
  font-size:14px;line-height:1.7;color:var(--c-muted);margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:16px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-muted);
}
.post-meta svg{color:var(--c-primary)}
.empty-state{
  border:1px dashed #CBD5DE;background:var(--c-surface-2);
  border-radius:var(--r-card);padding:56px 24px;text-align:center;
}
.empty-state svg{color:#B5C1CC;margin:0 auto 14px}
.empty-state p{font-size:15px;color:var(--c-muted)}
.empty-state a{margin-top:12px;display:inline-flex}

/* 场景分栏 */
.scene-row{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;padding:36px 0;border-bottom:1px solid var(--c-line-2)}
.scene-row:last-child{border-bottom:0;padding-bottom:0}
.scene-row.reverse{grid-template-columns:7fr 5fr}
.scene-row.reverse .scene-media{order:2}
.scene-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--c-line);box-shadow:var(--sh-1)}
.scene-body h3{font-size:20px;font-weight:600;color:var(--c-ink);line-height:1.4}
.scene-body ul{margin-top:18px;display:grid;gap:10px}
.scene-body li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--c-text)}
.scene-body li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--c-accent);border-radius:2px}
.scene-body .link-arrow{margin-top:20px}

/* FAQ */
.faq-wrap{max-width:860px}
.accordion.faq-accordion{
  margin:0;border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:#fff;box-shadow:var(--sh-1);overflow:hidden;
}
.faq-accordion .accordion-item{border-bottom:1px solid var(--c-line-2)}
.faq-accordion .accordion-item:last-child{border-bottom:0}
.faq-accordion .accordion-title{
  position:relative;display:block;border:0;background:transparent;
  padding:20px 56px 20px 24px;font-size:16px;font-weight:600;line-height:1.55;
  color:var(--c-ink);transition:color .18s ease;
}
.faq-accordion .accordion-title:hover{color:var(--c-primary)}
.faq-accordion .accordion-title::after{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;background:var(--c-accent);border-radius:2px;
  transition:background .18s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::after{background:var(--c-primary)}
.faq-accordion .accordion-title::before{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  margin:0;font-size:20px;line-height:1;color:var(--c-primary);content:"+";
  transition:transform .2s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{
  content:"+";transform:translateY(-50%) rotate(45deg);
}
.faq-accordion .accordion-content{
  border:0;background:transparent;color:var(--c-text);
  padding:0 56px 20px 24px;font-size:15px;line-height:1.85;
}
.faq-more{margin-top:22px;display:flex;justify-content:flex-end}

/* 表单 */
.contact-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:32px;
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field .req{color:var(--c-error);margin-left:2px}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;
  border:1px solid #D7DEE5;border-radius:10px;background:#fff;
  font-size:15px;color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease;
  -webkit-appearance:none;appearance:none;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B7A89' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(30,78,121,.15);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA8B4}
.field .hint{font-size:12px;color:var(--c-muted);margin-top:6px}
.field.check{display:flex;align-items:flex-start;gap:10px;margin-bottom:20px}
.field.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--c-primary);flex-shrink:0}
.field.check label{font-size:13px;font-weight:400;color:var(--c-muted);margin:0;line-height:1.7}
.contact-points{display:grid;gap:12px;margin-top:22px}
.contact-points li{display:flex;gap:10px;font-size:15px;line-height:1.75;color:var(--c-text)}
.contact-points li svg{flex-shrink:0;margin-top:5px;color:var(--c-primary)}
.mini-card{
  margin-top:28px;background:var(--c-primary-l);border:1px solid #D8E4EF;
  border-radius:var(--r-card);padding:20px 22px;
}
.mini-card .k{font-size:13px;color:var(--c-muted)}
.mini-card .v{font-size:16px;font-weight:600;color:var(--c-ink);margin-top:4px}
.mini-card .v + .k{margin-top:14px}
.form-alert{
  display:flex;align-items:flex-start;gap:10px;
  background:var(--c-accent-l);border-left:3px solid var(--c-accent);
  border-radius:10px;padding:12px 16px;margin-bottom:18px;
  font-size:14px;line-height:1.7;color:var(--c-accent-d);
}

/* 页脚 */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px;font-size:14px}
.footer-brand .brand-text{font-size:17px}
.footer-desc{font-size:14px;line-height:1.85;color:var(--c-muted);margin-top:18px;max-width:30em}
.footer-title{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--c-muted)}
.footer-links a:hover{color:var(--c-primary)}
.footer-info{display:grid;gap:10px;font-size:14px;color:var(--c-muted);line-height:1.75}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--c-line);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-muted);
}

/* 响应式 */
@media (max-width:1199px){
  .dock-nav a{padding:0 10px;font-size:13.5px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .hero{padding:132px 0 72px}
  .dock-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border:1px solid var(--c-line);border-radius:16px;
    box-shadow:var(--sh-2);padding:8px;
  }
  .dock.is-open .dock-nav{display:flex}
  .dock-nav a{height:48px;border-radius:10px;font-size:15px;padding:0 14px}
  .dock-nav a.active::after{display:none}
  .dock-nav a.active{background:var(--c-primary-l)}
  .dock-menu-btn{display:inline-flex}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:1fr 1fr}
  .bcard-main{grid-column:span 2}
  .compare{grid-template-columns:1fr;gap:16px}
  .cmp-mid{display:none}
  .cmp-sum{grid-template-columns:1fr;gap:16px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .scene-row,.scene-row.reverse{grid-template-columns:1fr;gap:24px}
  .scene-row.reverse .scene-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .contact-card{padding:26px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .hero{padding:122px 0 56px}
  .hero-note{margin-top:16px;margin-right:0;width:100%}
  .hero-sub{font-size:16px}
  .hero-trust span+span::before{display:none}
  .hero-trust{flex-direction:column;align-items:flex-start;gap:6px}
  .metrics{grid-template-columns:1fr;gap:16px}
  .bento{grid-template-columns:1fr;gap:16px}
  .bcard-main{grid-column:span 1;padding:26px}
  .bcard{padding:22px}
  .post-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .sec-head{margin-bottom:28px}
  .footer-bottom{margin-top:36px}
  .cmp-col{padding:22px}
  .faq-accordion .accordion-title{padding:16px 46px 16px 18px;font-size:15px}
  .faq-accordion .accordion-content{padding:0 46px 16px 18px;font-size:14.5px}
  .contact-card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --c-primary:#1E4E79;
  --c-primary-d:#163A5C;
  --c-primary-l:#EAF1F7;
  --c-accent:#E3A33B;
  --c-accent-l:#FCF3E2;
  --c-accent-d:#A9701F;
  --c-ink:#16202E;
  --c-text:#26333F;
  --c-muted:#6B7A89;
  --c-bg:#FAFAF7;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F8;
  --c-line:#E3E8ED;
  --c-line-2:#EFF2F5;
  --c-success:#3F8A6E;
  --c-warn:#C4622D;
  --c-error:#C0392B;
  --r-card:14px;
  --r-lg:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-dock:20px;
  --sh-1:0 1px 2px rgba(22,32,46,.04),0 8px 24px rgba(22,32,46,.06);
  --sh-2:0 2px 4px rgba(22,32,46,.05),0 14px 32px rgba(22,32,46,.09);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style-position:outside}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer}
table{border-collapse:collapse}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
a:focus-visible,button:focus-visible,.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}

/* ===== 浮动 Dock 导航 ===== */
.dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1080px,calc(100% - 32px));height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 16px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  border-radius:var(--r-dock);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  z-index:200;
  transition:height .22s ease,box-shadow .22s ease;
}
.dock.is-compact{height:56px;box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:8px;flex:0 0 auto;
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;
  font-size:14px;font-weight:700;line-height:1;
}
.brand-text{font-size:16px;font-weight:600;color:var(--c-ink);white-space:nowrap;letter-spacing:.2px}
.dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.dock-nav a{
  position:relative;display:block;
  padding:8px 12px;border-radius:8px;
  font-size:14px;color:var(--c-muted);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.dock-nav a:hover{color:var(--c-primary);background:var(--c-surface-2)}
.dock-nav a.active{color:var(--c-primary);font-weight:600}
.dock-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--c-accent);
}
.dock-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.dock-icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;color:var(--c-muted);
  transition:background .18s ease,color .18s ease;
}
.dock-icon-btn:hover{background:var(--c-surface-2);color:var(--c-primary)}
.dock-menu-btn{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  place-items:center;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-ghost:active{transform:translateY(0)}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--c-primary)}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(4px)}
.btn-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ===== 页面容器 ===== */
.page{padding-top:96px}

/* ===== 面包屑 ===== */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:12px;color:var(--c-muted);
  padding:14px 0 22px;
}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#C6D0D9}
.crumbs .cur{color:var(--c-primary);font-weight:500;max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 文章主体布局 ===== */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;
  align-items:start;
}
.article-col{min-width:0}
.article-head{max-width:780px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-badge);background:var(--c-accent-l);
  color:var(--c-accent-d);font-size:12px;font-weight:500;letter-spacing:.02em;
}
.article-head h1{
  font-size:clamp(26px,3.2vw,34px);
  line-height:1.35;font-weight:700;color:var(--c-ink);
  letter-spacing:-.01em;margin-top:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:14px;font-size:13px;color:var(--c-muted);
}
.article-meta .dot{width:1px;height:12px;background:var(--c-line);flex:0 0 auto}
.article-meta .num{font-variant-numeric:tabular-nums}
.article-cover{
  max-width:780px;margin-top:24px;
  aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;
  background:var(--c-primary-l);border:1px solid var(--c-line);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ===== 正文排版 ===== */
.prose{
  max-width:720px;margin-top:32px;
  font-size:16.5px;line-height:1.9;color:var(--c-text);
  word-break:break-word;
}
.prose > *:first-child{margin-top:0}
.prose p{margin:0 0 1.1em}
.prose h2{
  position:relative;font-size:24px;font-weight:600;line-height:1.35;
  color:var(--c-ink);margin:40px 0 16px;padding-left:13px;scroll-margin-top:100px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;
  width:3px;height:1em;border-radius:2px;background:var(--c-accent);
}
.prose h3{
  font-size:19px;font-weight:600;line-height:1.45;
  color:var(--c-ink);margin:28px 0 12px;scroll-margin-top:100px;
}
.prose h4{font-size:17px;font-weight:600;color:var(--c-ink);margin:22px 0 10px}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.4em;line-height:1.85}
.prose li{margin:6px 0}
.prose li::marker{color:var(--c-accent-d)}
.prose blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:3px solid var(--c-accent);
  background:#FAF7F0;border-radius:0 10px 10px 0;
  color:#3A4753;font-size:16px;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{max-width:100%;height:auto;border-radius:8px;margin:24px 0 8px}
.prose figure{margin:24px 0}
.prose figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--c-primary-d);text-decoration-thickness:2px}
.prose strong{color:var(--c-ink);font-weight:600}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:36px 0}
.prose table{width:100%;font-size:14.5px;margin:22px 0;border:1px solid var(--c-line)}
.prose thead th{background:var(--c-primary-l);color:var(--c-ink);font-weight:600}
.prose th,.prose td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;vertical-align:top}
.prose tbody tr:nth-child(even) td{background:#F7F9FB}
.prose code{
  background:var(--c-surface-2);border:1px solid var(--c-line);
  border-radius:4px;padding:1px 6px;font-size:.92em;
}

/* ===== 侧栏 ===== */
.side{
  position:sticky;top:96px;
  display:flex;flex-direction:column;gap:20px;
  min-width:0;
}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:20px 22px;
}
.side-title{
  display:flex;align-items:center;gap:9px;
  font-size:14px;font-weight:600;color:var(--c-ink);
  letter-spacing:.02em;margin-bottom:12px;
}
.side-title::before{
  content:"";width:3px;height:14px;border-radius:2px;background:var(--c-accent);flex:0 0 auto;
}
.toc-list{list-style:none;margin:0;padding:0;max-height:340px;overflow:auto}
.toc-list::-webkit-scrollbar{width:6px}
.toc-list::-webkit-scrollbar-thumb{background:#D5DEE6;border-radius:3px}
.toc-list li a{
  display:block;padding:7px 10px;
  font-size:13.5px;line-height:1.55;color:var(--c-muted);
  border-left:2px solid transparent;border-radius:0 6px 6px 0;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.toc-list li a:hover{color:var(--c-primary);background:var(--c-surface-2)}
.toc-list li a.active{
  color:var(--c-primary);font-weight:600;
  border-left-color:var(--c-primary);background:var(--c-primary-l);
}
.toc-list li.toc-h3 a{padding-left:22px;font-size:13px}
.side-cta{
  background:var(--c-primary-l);
  border:1px solid #D8E5F0;
  border-radius:var(--r-card);
  padding:22px;
}
.side-cta .side-title::before{background:var(--c-primary)}
.side-cta p{font-size:13.5px;line-height:1.8;color:#40566B;margin-bottom:16px}
.side-cta .btn{width:100%}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{margin:0}
.side-list li + li{border-top:1px solid var(--c-line-2)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--c-text);
  transition:color .18s ease,padding-left .18s ease;
}
.side-list a:hover{color:var(--c-primary);padding-left:4px}
.side-list a span.arrow{color:#B9C4CE;font-size:14px;transition:transform .18s ease}
.side-list a:hover span.arrow{transform:translateX(3px);color:var(--c-primary)}

/* ===== 文末区 ===== */
.article-foot{
  max-width:780px;margin-top:52px;padding-top:30px;
  border-top:1px solid var(--c-line);
}
.foot-label{font-size:12.5px;font-weight:600;color:var(--c-muted);letter-spacing:.06em;margin-bottom:12px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-badge);background:var(--c-surface-2);
  border:1px solid var(--c-line);color:var(--c-muted);font-size:12.5px;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff}
.disclaimer{
  margin-top:20px;font-size:12px;line-height:1.85;color:#8B98A5;
  padding:14px 16px;background:var(--c-surface-2);border-radius:10px;
}
.rel-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:44px;margin-bottom:16px;
}
.rel-head h2{
  font-size:22px;font-weight:600;color:var(--c-ink);line-height:1.35;
}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:block;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;color:inherit;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6E2EC}
.rel-card .thumb{
  aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-l);
}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rel-card:hover .thumb img{transform:scale(1.02)}
.rel-card .body{padding:14px 16px 16px}
.rel-card .body h3{
  font-size:15px;font-weight:600;line-height:1.55;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.rel-card:hover .body h3{color:var(--c-primary)}
.rel-card .date{display:block;margin-top:8px;font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.foot-actions{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line);
}
.prev-next{display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:13.5px}
.prev-next a{color:var(--c-muted);display:inline-flex;align-items:center;gap:6px}
.prev-next a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}

/* ===== 空态 ===== */
.empty-state{
  max-width:720px;margin:32px 0 0;padding:56px 24px;
  text-align:center;border:1px dashed #CBD5DE;border-radius:var(--r-card);
  background:var(--c-surface-2);
}
.empty-state svg{color:#B9C4CE;margin:0 auto 14px}
.empty-state p{font-size:15px;color:var(--c-muted);margin-bottom:16px}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--c-surface-2);
  border-top:1px solid var(--c-line);
  margin-top:88px;padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.3fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text{font-size:16px;font-weight:600;color:var(--c-ink)}
.footer-desc{font-size:13.5px;line-height:1.85;color:var(--c-muted);max-width:360px}
.footer-title{font-size:13px;font-weight:600;color:var(--c-ink);letter-spacing:.04em;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--c-muted)}
.footer-links a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:13.5px;line-height:1.7;color:var(--c-muted)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  margin-top:48px;padding:20px 0 24px;
  border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-muted);
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 310px;gap:36px}
}
@media (max-width:991px){
  .dock-nav{
    display:none;
  }
  .dock-menu-btn{display:grid}
  .dock-nav.is-open{
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    background:#fff;border:1px solid var(--c-line);
    border-radius:16px;padding:10px;box-shadow:var(--sh-2);
    margin:0;
  }
  .dock-nav.is-open a{padding:12px 14px;font-size:15px;height:48px;display:flex;align-items:center}
  .dock-nav.is-open a.active::after{display:none}
  .article-layout{grid-template-columns:1fr;gap:36px}
  .side{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .side-card,.side-cta{flex:1 1 280px}
  .article-head,.article-cover,.prose,.article-foot{max-width:none}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .page{padding-top:88px}
  .dock{height:56px;top:12px;width:calc(100% - 24px);gap:10px;padding:0 10px 0 12px}
  .dock.is-compact{height:56px}
  .brand-text{font-size:15px}
  .dock-icon-btn{display:none}
  .dock-right .btn-sm{height:36px;padding:0 12px;font-size:13px}
  .crumbs{padding:10px 0 16px;font-size:11.5px}
  .article-head h1{font-size:26px;margin-top:12px}
  .prose{font-size:16px;line-height:1.85;margin-top:26px}
  .prose h2{font-size:21px;margin-top:32px}
  .prose h3{font-size:17.5px;margin-top:24px}
  .prose table{display:block;overflow-x:auto;white-space:nowrap}
  .side{flex-direction:column}
  .rel-grid{grid-template-columns:1fr}
  .rel-head h2{font-size:19px}
  .foot-actions{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:64px;padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:32px;flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .dock-right .btn-sm{padding:0 10px;font-size:12.5px}
  .brand-text{font-size:14px}
  .brand-mark{width:26px;height:26px;border-radius:7px;font-size:13px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1E4E79;
  --c-primary-d:#163A5C;
  --c-primary-l:#EAF1F7;
  --c-accent:#E3A33B;
  --c-accent-l:#FCF3E2;
  --c-accent-d:#A9701F;
  --c-ink:#16202E;
  --c-text:#26333F;
  --c-muted:#6B7A89;
  --c-bg:#FAFAF7;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F8;
  --c-line:#E3E8ED;
  --c-line-2:#EFF2F5;
  --c-ok:#3F8A6E;
  --c-warn:#C4622D;
  --c-err:#C0392B;
  --radius-card:14px;
  --radius-lg:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --radius-dock:20px;
  --shadow-1:0 1px 2px rgba(22,32,46,.04),0 8px 24px rgba(22,32,46,.06);
  --shadow-2:0 2px 4px rgba(22,32,46,.05),0 14px 32px rgba(22,32,46,.09);
  --sp-section:88px;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  padding-top:96px;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
h1,h2,h3,h4,p,dl,dd,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  width:min(1080px,calc(100% - 32px));
  height:64px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 14px 0 16px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  border-radius:var(--radius-dock);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  z-index:120;
  transition:height .22s ease,box-shadow .22s ease,top .22s ease;
}
.dock.is-compact{height:56px;box-shadow:var(--shadow-2);top:10px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;
  font-size:16px;font-weight:700;letter-spacing:0;
  flex-shrink:0;
}
.brand-text{font-size:16px;font-weight:600;color:var(--c-ink);letter-spacing:.01em;white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1;min-width:0;}
.dock-nav a{
  position:relative;
  font-size:14px;
  color:var(--c-muted);
  padding:8px 10px;
  border-radius:8px;
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.dock-nav a:hover{color:var(--c-primary);background:var(--c-surface-2);}
.dock-nav a.active{color:var(--c-primary);font-weight:600;}
.dock-nav a.active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;
  height:2px;border-radius:2px;background:var(--c-accent);
}
.dock-right{display:flex;align-items:center;gap:8px;margin-left:auto;flex-shrink:0;}
.dock-icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-muted);border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.dock-icon-btn:hover{background:var(--c-surface-2);color:var(--c-primary);border-color:var(--c-line);}
.dock-menu-btn{
  display:none;width:40px;height:40px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--c-primary);
  border:1px solid var(--c-line);
}
.dock-menu-btn:hover{background:var(--c-surface-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:var(--shadow-2);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);transform:translateY(-1px);color:var(--c-primary-d);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:13px;font-weight:600;
}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;
  padding:52px 0 44px;
  min-height:224px;
  display:flex;align-items:center;
  background-image:linear-gradient(rgba(255,255,255,.80),rgba(255,255,255,.80)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;color:var(--c-muted);margin-bottom:18px;
}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:#C3CDD6;}
.crumbs .current{color:var(--c-primary);font-weight:600;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:700;line-height:1.25;letter-spacing:-.01em;
  color:var(--c-ink);
  display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;
}
.page-hero h1 small{
  font-size:15px;font-weight:500;color:var(--c-muted);letter-spacing:0;
}
.hero-lead{
  margin-top:14px;font-size:16px;color:var(--c-text);max-width:640px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:20px;padding:6px 14px;
  background:var(--c-accent-l);color:var(--c-accent-d);
  border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;
}
.hero-badge .pulse{
  width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex-shrink:0;
}

/* ---------- 板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:36px;flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.3;color:var(--c-ink);
}
.section-head .sub{
  font-size:14px;color:var(--c-muted);margin-top:8px;max-width:560px;
}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px 16px;margin-bottom:28px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  flex-wrap:wrap;
}
.chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.chip{
  height:34px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);
  color:var(--c-muted);font-size:13px;font-weight:500;
  display:inline-flex;align-items:center;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.chip:hover{color:var(--c-primary);border-color:#C7D6E3;}
.chip.is-active{
  background:var(--c-primary-l);border-color:var(--c-primary);
  color:var(--c-primary);font-weight:600;
}
.filter-meta{font-size:12px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.filter-meta strong{color:var(--c-primary);font-weight:700;}

/* ---------- 项目卡网格 ---------- */
.project-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.project-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.project-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6E0E9;}
.card-cover{
  position:relative;
  aspect-ratio:16/9;
  background:var(--c-primary-l);
  overflow:hidden;
}
.card-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s ease;
}
.project-card:hover .card-cover img{transform:scale(1.02);}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  align-self:flex-start;
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--radius-badge);
  background:var(--c-accent-l);color:var(--c-accent-d);
  font-size:12px;font-weight:600;line-height:1.4;
}
.card-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.project-card:hover .card-title{color:var(--c-primary);}
.card-desc{
  font-size:14px;line-height:1.7;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line-2);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;
}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:#C3CDD6;}
.state{
  margin-left:auto;
  font-size:12px;font-weight:600;
  padding:3px 8px;border-radius:var(--radius-badge);
  background:var(--c-primary-l);color:var(--c-primary);
}
.state.warn{background:#FBEDE4;color:var(--c-warn);}
.state.ok{background:#EAF4EF;color:var(--c-ok);}

/* ---------- 加载更多 ---------- */
.load-more-wrap{margin-top:36px;display:flex;flex-direction:column;align-items:center;gap:14px;}
.notice{
  width:100%;max-width:520px;
  padding:12px 16px;border-radius:10px;
  background:var(--c-accent-l);color:var(--c-accent-d);
  border-left:3px solid var(--c-accent);
  font-size:14px;text-align:center;
}
.notice[hidden]{display:none;}

/* ---------- 排行 ---------- */
.rank-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.rank-list{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  padding:8px 24px;
}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 0;border-bottom:1px solid var(--c-line-2);
}
.rank-item:last-child{border-bottom:0;}
.rank-no{
  width:28px;flex-shrink:0;
  font-size:18px;font-weight:700;color:#C0CCD6;
  font-variant-numeric:tabular-nums;text-align:center;
}
.rank-item:first-child .rank-no{color:var(--c-accent);}
.rank-main{flex:1;min-width:0;}
.rank-title{font-size:16px;font-weight:600;color:var(--c-ink);}
.rank-sub{font-size:13px;color:var(--c-muted);margin-top:2px;font-variant-numeric:tabular-nums;}
.rank-tag{
  flex-shrink:0;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--radius-badge);
  background:var(--c-primary-l);color:var(--c-primary);
}
.rank-tag.hot{background:var(--c-accent-l);color:var(--c-accent-d);}
.rank-side{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  padding:28px;display:flex;flex-direction:column;justify-content:space-between;gap:20px;
}
.rank-side h3{font-size:19px;font-weight:600;color:var(--c-ink);}
.rank-side p{font-size:14px;line-height:1.8;color:var(--c-muted);}
.rank-facts{display:flex;gap:28px;margin-top:4px;flex-wrap:wrap;}
.rank-facts div span{display:block;}
.rank-facts .num{
  font-size:32px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.rank-facts .lbl{font-size:13px;color:var(--c-muted);}

/* ---------- 项目节奏 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step{
  position:relative;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  padding:28px 24px 26px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.step-no{
  font-size:40px;font-weight:700;line-height:1;
  color:rgba(30,78,121,.16);font-variant-numeric:tabular-nums;
}
.step::after{
  content:"";position:absolute;left:24px;top:82px;
  width:28px;height:3px;border-radius:2px;background:var(--c-accent);
}
.step h3{font-size:18px;font-weight:600;color:var(--c-ink);margin:26px 0 10px;}
.step p{font-size:14px;line-height:1.8;color:var(--c-muted);}

/* ---------- FAQ ---------- */
.faq-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 24px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);
  transition:color .18s ease,background .18s ease;
}
.faq-q::before{
  content:"";width:3px;align-self:stretch;min-height:20px;
  border-radius:2px;background:var(--c-accent);flex-shrink:0;
  transition:background .18s ease;
}
.faq-q:hover{background:#FBFCFD;color:var(--c-primary);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-q::before{background:var(--c-primary);}
.faq-icon{
  margin-left:auto;width:20px;height:20px;flex-shrink:0;
  position:relative;transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-muted);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:9px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px;transition:opacity .2s ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .2s ease;
}
.faq-a p{padding:0 24px 20px 41px;font-size:15px;line-height:1.85;color:var(--c-muted);}

/* ---------- CTA 横条 ---------- */
.cta-bar{
  background:var(--c-primary-l);
  border:1px solid #D8E4EF;
  border-radius:var(--radius-lg);
  padding:40px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);font-weight:600;color:var(--c-ink);line-height:1.4;}
.cta-bar p{margin-top:10px;font-size:15px;color:#41525F;max-width:640px;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-surface-2);
  border-top:1px solid var(--c-line);
  padding:64px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:44px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px;}
.footer-brand .brand-text{font-size:16px;font-weight:600;color:var(--c-ink);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--c-muted);max-width:420px;}
.footer-title{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--c-muted);}
.footer-links a:hover{color:var(--c-primary);}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--c-muted);line-height:1.7;}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .project-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dock-nav a{padding:8px 8px;font-size:13.5px;}
}
@media (max-width:991px){
  body{padding-top:88px;}
  .section{padding:72px 0;}
  .dock-nav{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-2);
    display:none;
  }
  .dock-nav.is-open{display:flex;}
  .dock-nav a{padding:12px 14px;min-height:48px;display:flex;align-items:center;font-size:15px;}
  .dock-nav a.active::after{left:14px;width:24px;right:auto;bottom:10px;}
  .dock-menu-btn{display:inline-flex;}
  .dock-right{gap:6px;}
  .rank-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .page-hero{min-height:200px;padding:40px 0 36px;}
}
@media (max-width:767px){
  body{padding-top:80px;}
  .container{padding:0 18px;}
  .dock{height:56px;padding:0 12px;gap:10px;top:10px;}
  .dock.is-compact{height:52px;top:8px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:15px;}
  .brand-text{font-size:15px;}
  .dock-icon-btn{display:none;}
  .dock-right .btn-sm{height:36px;padding:0 12px;font-size:13px;}
  .section{padding:56px 0;}
  .page-hero{min-height:160px;padding:32px 0;}
  .page-hero h1{font-size:28px;gap:8px;}
  .page-hero h1 small{font-size:13px;display:block;width:100%;}
  .hero-lead{font-size:15px;}
  .project-grid{grid-template-columns:1fr;gap:16px;}
  .filter-bar{padding:12px;gap:12px;}
  .chip{height:32px;padding:0 12px;font-size:12.5px;}
  .section-head{margin-bottom:24px;}
  .faq-q{padding:16px 16px;font-size:15px;gap:10px;}
  .faq-a p{padding:0 16px 16px 33px;}
  .cta-bar{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding:48px 0 20px;}
  .rank-list{padding:4px 16px;}
  .rank-item{gap:12px;}
  .rank-side{padding:22px;}
  .step{padding:22px 20px;}
  .step::after{left:20px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1E4E79;
  --c-primary-d:#163A5C;
  --c-primary-l:#EAF1F7;
  --c-accent:#E3A33B;
  --c-accent-l:#FCF3E2;
  --c-accent-d:#A9701F;
  --c-ink:#16202E;
  --c-text:#26333F;
  --c-muted:#6B7A89;
  --c-bg:#FAFAF7;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F8;
  --c-line:#E3E8ED;
  --c-line-2:#EFF2F5;
  --c-ok:#3F8A6E;
  --c-err:#C0392B;
  --r-card:14px;
  --r-lg:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-dock:20px;
  --sh-1:0 1px 2px rgba(22,32,46,.04), 0 8px 24px rgba(22,32,46,.06);
  --sh-2:0 2px 4px rgba(22,32,46,.05), 0 14px 32px rgba(22,32,46,.09);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:96px;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-d);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-cn);
  color:var(--c-ink);
  margin:0 0 14px;
  font-weight:600;
  line-height:1.32;
  letter-spacing:0;
  text-rendering:optimizeLegibility;
}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.3;}
h3{font-size:19px;font-weight:600;line-height:1.4;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 14px;padding-left:1.3em;}
li{margin-bottom:6px;}
dl,dd{margin:0;}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:2px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Dock ---------- */
.dock{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  width:min(1080px, calc(100% - 32px));
  height:64px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:0 14px 0 16px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  border-radius:var(--r-dock);
  box-shadow:var(--sh-1);
  z-index:100;
  transition:height .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.dock.is-scrolled{height:56px;box-shadow:var(--sh-2);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover .brand-text{color:var(--c-primary);}
.brand-mark{
  width:32px;height:32px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:700;
  line-height:1;
  flex:0 0 auto;
}
.brand-text{font-size:16px;font-weight:600;color:var(--c-ink);white-space:nowrap;transition:color .18s ease;}
.dock-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.dock-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  color:var(--c-text);
  white-space:nowrap;
}
.dock-nav a:hover{background:var(--c-surface-2);color:var(--c-primary);}
.dock-nav a.active{color:var(--c-primary);font-weight:600;}
.dock-nav a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  transform:translateX(-50%);
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
}
.dock-right{display:flex;align-items:center;gap:8px;margin-left:auto;}
.dock-icon-btn{
  width:36px;height:36px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--c-muted);
  border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease;
}
.dock-icon-btn:hover{background:var(--c-surface-2);color:var(--c-primary);}
.dock-menu-btn{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:#fff;
  color:var(--c-ink);
  cursor:pointer;
}
.dock-menu-btn:hover{background:var(--c-surface-2);border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(22,32,46,.08);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}

/* ---------- Chips ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:500;
  line-height:1.6;
}
.chip-accent{background:var(--c-accent-l);color:var(--c-accent-d);}
.chip-line{background:#fff;border:1px solid var(--c-line);color:var(--c-muted);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background-image:linear-gradient(180deg, rgba(255,255,255,.80), rgba(250,250,247,.92)), url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
}
.page-hero-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding-top:56px;
  padding-bottom:56px;
  min-height:232px;
}
.page-hero-copy{max-width:660px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--c-accent-d);
  background:var(--c-accent-l);
  border-radius:6px;
  padding:4px 10px;
  margin-bottom:16px;
}
.page-hero-copy h1{margin-bottom:14px;}
.page-hero-copy .hero-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  max-width:600px;
  margin:0;
}
.hero-badge{
  flex:0 0 auto;
  display:flex;
  flex-direction:column;
  gap:2px;
  min-width:186px;
  padding:20px 24px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.hero-badge .badge-num{
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.hero-badge .badge-label{font-size:13px;color:var(--c-muted);}
.hero-badge .badge-bar{width:28px;height:3px;border-radius:2px;background:var(--c-accent);margin-bottom:8px;}

/* ---------- Anchor bar ---------- */
.anchor-bar{
  position:sticky;
  top:88px;
  z-index:60;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
}
.anchor-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
}
.anchor-label{
  font-size:13px;
  font-weight:600;
  color:var(--c-muted);
  white-space:nowrap;
  flex:0 0 auto;
}
.anchor-scroll{
  display:flex;
  align-items:center;
  gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:4px 0;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 15px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-text);
  font-size:13px;
  font-weight:500;
  white-space:nowrap;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.anchor-chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l);}
.anchor-chip.is-active{background:var(--c-primary-l);border-color:var(--c-primary);color:var(--c-primary);font-weight:600;}

/* ---------- Profiles ---------- */
.profiles{padding-top:72px;padding-bottom:8px;}
.profile-row{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:40px;
  align-items:start;
  padding:44px 0;
  border-bottom:1px solid var(--c-line-2);
  scroll-margin-top:170px;
}
.profile-row:last-child{border-bottom:none;padding-bottom:24px;}
.profile-row:nth-child(even) .profile-photo{order:2;}
.profile-row:nth-child(even) .profile-body{order:1;}
.profile-photo{position:relative;margin:0;}
.profile-photo img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.profile-photo figcaption{
  margin-top:10px;
  font-size:12px;
  color:var(--c-muted);
  line-height:1.7;
}
.profile-body h2{margin:10px 0 10px;}
.profile-lead{font-size:15px;line-height:1.85;color:var(--c-text);margin-bottom:0;}
.profile-dl{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px 28px;
  margin:24px 0;
  padding:24px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.profile-dl:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.profile-dl dt{
  font-size:12px;
  font-weight:500;
  color:var(--c-muted);
  margin-bottom:4px;
  letter-spacing:.02em;
}
.profile-dl dd{
  font-size:15px;
  font-weight:500;
  color:var(--c-ink);
  line-height:1.6;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  min-height:44px;
}
.link-arrow span{transition:transform .18s ease;}
.link-arrow:hover{color:var(--c-primary-d);text-decoration:underline;}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- Fields ---------- */
.fields{padding-top:64px;padding-bottom:8px;}
.fields-wrap{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:40px;
  align-items:start;
  padding-top:32px;
  border-top:1px solid var(--c-line);
}
.fields-head h2{margin-bottom:12px;}
.fields-head p{font-size:14px;line-height:1.85;color:var(--c-muted);margin:0;}
.fields-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.field-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.field-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6DFE7;}
.field-card h3{font-size:16px;margin-bottom:8px;}
.field-card p{font-size:14px;line-height:1.8;color:var(--c-muted);margin:0;}
.field-card .field-bar{width:22px;height:3px;border-radius:2px;background:var(--c-accent);margin-bottom:12px;}

/* ---------- Quote ---------- */
.quote-section{padding-top:64px;padding-bottom:0;}
.pull-quote{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-accent);
  border-radius:var(--r-card);
  padding:32px 36px;
  box-shadow:var(--sh-1);
}
.pull-quote p{
  font-size:clamp(17px,2vw,21px);
  font-weight:600;
  line-height:1.7;
  color:var(--c-ink);
  margin:0 0 12px;
}
.pull-quote cite{
  font-style:normal;
  font-size:13px;
  color:var(--c-muted);
}

/* ---------- CTA ---------- */
.cta-section{padding-top:64px;padding-bottom:88px;}
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:36px 40px;
  background:var(--c-primary-l);
  border:1px solid #D8E4EE;
  border-radius:var(--r-lg);
}
.cta-band h2{font-size:clamp(20px,2.3vw,26px);margin-bottom:8px;}
.cta-band p{font-size:14px;line-height:1.8;color:var(--c-text);margin:0;max-width:640px;}
.cta-band .btn{flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-surface-2);
  border-top:1px solid var(--c-line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1.4fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:16px;font-weight:600;color:var(--c-ink);}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:var(--c-muted);
  max-width:420px;
  margin:0;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:2px;}
.footer-links a{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  font-size:14px;
  color:var(--c-muted);
}
.footer-links a:hover{color:var(--c-primary);}
.footer-info{display:flex;flex-direction:column;gap:10px;}
.footer-info span{font-size:14px;line-height:1.7;color:var(--c-muted);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-muted);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .dock-nav a{padding:0 10px;font-size:14px;}
}
@media (max-width:991px){
  body{padding-top:88px;}
  .dock-nav{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin:0;
    padding:8px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:16px;
    box-shadow:var(--sh-2);
    display:none;
  }
  .dock-nav.is-open{display:flex;}
  .dock-nav a{height:48px;padding:0 14px;font-size:15px;border-radius:10px;}
  .dock-nav a.active::after{display:none;}
  .dock-nav a.active{background:var(--c-primary-l);}
  .dock-menu-btn{display:inline-flex;}
  .anchor-bar{top:80px;}
  .page-hero-inner{flex-direction:column;align-items:flex-start;gap:24px;min-height:0;padding-top:48px;padding-bottom:48px;}
  .hero-badge{flex-direction:row;align-items:center;gap:14px;min-width:0;padding:16px 20px;width:100%;}
  .hero-badge .badge-bar{display:none;}
  .hero-badge .badge-num{font-size:26px;}
  .profile-row{grid-template-columns:1fr;gap:24px;padding:36px 0;}
  .profile-row:nth-child(even) .profile-photo{order:0;}
  .profile-row:nth-child(even) .profile-body{order:0;}
  .fields-wrap{grid-template-columns:1fr;gap:24px;}
  .fields-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  body{padding-top:84px;}
  .dock{height:56px;top:12px;width:calc(100% - 24px);padding:0 10px 0 12px;border-radius:16px;}
  .dock.is-scrolled{height:52px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:15px;}
  .brand-text{font-size:15px;}
  .dock-right .btn-sm{display:none;}
  .anchor-bar{top:74px;}
  .anchor-inner{height:58px;gap:12px;}
  .anchor-chip{height:40px;padding:0 16px;font-size:14px;}
  .page-hero-inner{padding-top:36px;padding-bottom:36px;}
  .page-hero-copy h1{font-size:clamp(26px,7vw,32px);}
  .page-hero-copy .hero-lead{font-size:15px;}
  .profiles{padding-top:40px;}
  .profile-dl{grid-template-columns:1fr;padding:20px;gap:16px;}
  .fields-grid{grid-template-columns:1fr;}
  .pull-quote{padding:24px 22px;}
  .cta-section{padding-top:48px;padding-bottom:56px;}
  .cta-band{padding:26px 22px;gap:20px;}
  .cta-band .btn{width:100%;}
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;font-size:12px;}
  .profile-row{scroll-margin-top:150px;}
}
@media (max-width:520px){
  .dock-nav a{height:46px;}
  .hero-badge{padding:14px 16px;}
  .hero-badge .badge-num{font-size:22px;}
  .btn{width:100%;}
  .dock-right .dock-icon-btn{display:none;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1E4E79;
  --c-primary-d:#163A5C;
  --c-primary-l:#EAF1F7;
  --c-accent:#E3A33B;
  --c-accent-l:#FCF3E2;
  --c-accent-d:#A9701F;
  --c-ink:#16202E;
  --c-text:#26333F;
  --c-muted:#6B7A89;
  --c-bg:#FAFAF7;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F8;
  --c-line:#E3E8ED;
  --c-line-2:#EFF2F5;
  --c-success:#3F8A6E;
  --c-warn:#C4622D;
  --c-error:#C0392B;
  --radius-card:14px;
  --radius-lg:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --radius-dock:20px;
  --shadow-1:0 1px 2px rgba(22,32,46,.04), 0 8px 24px rgba(22,32,46,.06);
  --shadow-2:0 2px 4px rgba(22,32,46,.05), 0 14px 32px rgba(22,32,46,.09);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --container:1200px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-d);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.35;}
h1{letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--c-accent-l);color:var(--c-accent-d);}

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

/* ---------- 顶部浮动导航 ---------- */
.dock{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  width:min(1080px, calc(100% - 32px));
  height:64px;
  z-index:100;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 14px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  border-radius:var(--radius-dock);
  box-shadow:0 1px 2px rgba(22,32,46,.04), 0 10px 30px rgba(22,32,46,.07);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  transition:height .22s ease, box-shadow .22s ease;
}
.dock.scrolled{
  height:56px;
  box-shadow:0 2px 4px rgba(22,32,46,.05), 0 14px 32px rgba(22,32,46,.09);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-ink);
  font-size:16px;
  font-weight:600;
  flex-shrink:0;
}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:32px;
  height:32px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
  flex-shrink:0;
  transition:background .18s ease;
}
.brand:hover .brand-mark{background:var(--c-primary-d);}
.brand-text{letter-spacing:.01em;white-space:nowrap;}

.dock-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.dock-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  border-radius:9px;
  font-size:14px;
  color:var(--c-text);
  white-space:nowrap;
  transition:color .18s ease, background .18s ease;
}
.dock-nav a:hover{color:var(--c-primary);background:var(--c-surface-2);}
.dock-nav a.active{color:var(--c-primary);font-weight:600;}
.dock-nav a.active::after{
  content:"";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:3px;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
}
.dock-right{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.dock-icon-btn{
  width:36px;
  height:36px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--c-muted);
  border:1px solid transparent;
  transition:background .18s ease, color .18s ease, border-color .18s ease;
}
.dock-icon-btn:hover{background:var(--c-surface-2);color:var(--c-primary);border-color:var(--c-line);}
.dock-menu-btn{
  display:none;
  width:36px;
  height:36px;
  border-radius:10px;
  align-items:center;
  justify-content:center;
  color:var(--c-ink);
  background:#fff;
  border:1px solid var(--c-line);
  transition:background .18s ease;
}
.dock-menu-btn:hover{background:var(--c-surface-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .16s ease, background .18s ease, box-shadow .18s ease, border-color .18s ease, color .18s ease;
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:0 1px 2px rgba(22,32,46,.06);
}
.btn-primary:hover{
  background:var(--c-primary-d);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-secondary{
  background:#fff;
  color:var(--c-primary);
  border:1px solid var(--c-primary);
}
.btn-secondary:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;margin-top:18px;}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;
  padding-top:100px;
  border-bottom:1px solid var(--c-line);
  background-color:#EFF3F6;
  background-image:linear-gradient(rgba(255,255,255,.80), rgba(255,255,255,.80)), url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero-inner{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  padding-top:24px;
  padding-bottom:36px;
  min-height:140px;
}
.page-hero-text{max-width:720px;}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:12px;
  color:var(--c-muted);
  margin-bottom:14px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C6D1DB;}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}
.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  font-weight:700;
  line-height:1.24;
  color:var(--c-ink);
}
.page-hero-lead{
  margin-top:12px;
  font-size:15px;
  line-height:1.7;
  color:var(--c-muted);
  max-width:620px;
}
.page-hero-badge{
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  box-shadow:var(--shadow-1);
  white-space:nowrap;
}
.page-hero-badge .dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--c-accent);
  flex-shrink:0;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-sm{padding:52px 0;}
.section-alt{background:var(--c-surface-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:680px;margin-bottom:38px;}
.section-head h2{margin-top:14px;font-size:clamp(22px,2.6vw,30px);line-height:1.3;}
.section-desc{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-muted);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--c-accent-d);
  background:var(--c-accent-l);
  border-radius:var(--radius-badge);
}

/* ---------- 指标条 ---------- */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.stat{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px;
  transition:transform .18s ease, box-shadow .18s ease;
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.stat-num{
  display:block;
  font-size:36px;
  font-weight:700;
  line-height:1.1;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.stat-label{display:block;margin-top:12px;font-size:13px;color:var(--c-muted);}
.stat-label::before{
  content:"";
  display:block;
  width:22px;
  height:3px;
  border-radius:2px;
  background:var(--c-accent);
  margin-bottom:10px;
}

/* ---------- 工序流 ---------- */
.flow-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 344px;
  gap:56px;
  align-items:start;
}
.flow-list{list-style:none;margin:0;padding:0;}
.flow-step{
  position:relative;
  padding-left:84px;
  padding-bottom:42px;
}
.flow-step:last-child{padding-bottom:0;}
.flow-step::before{
  content:"";
  position:absolute;
  left:29px;
  top:56px;
  bottom:2px;
  width:1px;
  background:var(--c-line);
}
.flow-step:last-child::before{content:none;}
.flow-num{
  position:absolute;
  left:0;
  top:-4px;
  width:58px;
  text-align:center;
  font-size:46px;
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:rgba(30,78,121,.20);
  font-variant-numeric:tabular-nums;
}
.flow-body h3{font-size:19px;margin-bottom:8px;}
.flow-body p{font-size:15px;line-height:1.85;color:var(--c-muted);}
.flow-body .flow-meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:12px;
  font-size:12px;
  font-weight:600;
  color:var(--c-primary);
  background:var(--c-primary-l);
  border-radius:var(--radius-badge);
  padding:4px 10px;
}

/* ---------- 侧栏卡片 ---------- */
.side-card{
  position:sticky;
  top:96px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:26px;
}
.side-card-title{
  font-size:15px;
  font-weight:600;
  color:var(--c-ink);
  padding-bottom:14px;
  border-bottom:1px solid var(--c-line-2);
}
.side-list{margin-top:6px;}
.side-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:11px 0;
  font-size:14px;
  line-height:1.7;
  color:var(--c-text);
  border-bottom:1px dashed var(--c-line);
}
.side-list li:last-child{border-bottom:none;padding-bottom:4px;}
.side-list li::before{
  content:"";
  flex:0 0 auto;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-accent);
  margin-top:10px;
}
.side-note{
  margin-top:14px;
  font-size:12px;
  line-height:1.7;
  color:var(--c-muted);
}

/* ---------- 交付物区块 ---------- */
.deliver-grid{
  display:grid;
  grid-template-columns:1.02fr 1fr;
  gap:56px;
  align-items:center;
}
.deliver-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-2);
  background:var(--c-primary-l);
  aspect-ratio:4/3;
}
.deliver-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.deliver-media:hover img{transform:scale(1.02);}
.deliver-body h2{font-size:clamp(22px,2.6vw,30px);margin-top:14px;}
.deliver-body > p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-muted);}
.check-list{margin-top:24px;display:grid;gap:14px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.7;
  color:var(--c-text);
}
.tick{
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:50%;
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:3px;
}

/* ---------- 底部 CTA ---------- */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  background:var(--c-primary-l);
  border:1px solid #D8E4EF;
  border-radius:var(--radius-lg);
  padding:38px 40px;
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);}
.cta-bar p{
  margin-top:10px;
  font-size:15px;
  line-height:1.75;
  color:#41596F;
  max-width:580px;
}
.cta-actions{display:flex;gap:12px;flex-shrink:0;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-surface-2);
  border-top:1px solid var(--c-line);
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr .8fr 1.1fr;
  gap:48px;
  padding:64px 0 0;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
}
.footer-brand:hover{color:var(--c-ink);}
.footer-brand .brand-mark{
  width:30px;
  height:30px;
  border-radius:9px;
  background:var(--c-primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:var(--c-muted);
  max-width:400px;
}
.footer-title{
  font-size:13px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--c-muted);}
.footer-links a:hover{color:var(--c-primary);}
.footer-info{display:grid;gap:10px;font-size:14px;line-height:1.7;color:var(--c-muted);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-top:52px;
  padding:26px 0;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .flow-layout{gap:40px;grid-template-columns:minmax(0,1fr) 312px;}
  .deliver-grid{gap:40px;}
}

@media (max-width:991px){
  .dock-menu-btn{display:inline-flex;}
  .dock-icon-btn{display:none;}
  .dock-nav{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin-left:0;
    padding:8px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:16px;
    box-shadow:var(--shadow-2);
  }
  .dock.open .dock-nav{display:flex;}
  .dock-nav a{
    height:48px;
    padding:0 14px;
    border-radius:10px;
    font-size:15px;
  }
  .dock-nav a.active{background:var(--c-primary-l);}
  .dock-nav a.active::after{display:none;}

  .section{padding:72px 0;}
  .section-sm{padding:44px 0;}
  .flow-layout{grid-template-columns:minmax(0,1fr);}
  .side-card{position:static;top:auto;}
  .deliver-grid{grid-template-columns:minmax(0,1fr);}
  .deliver-media{order:-1;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .cta-actions{width:100%;}
}

@media (max-width:767px){
  .container{padding:0 18px;}
  .dock{height:56px;top:12px;padding:0 10px;border-radius:16px;box-shadow:var(--shadow-1);}
  .dock.scrolled{height:52px;}
  .brand{font-size:15px;}
  .brand-mark{width:28px;height:28px;border-radius:9px;font-size:13px;}
  .dock-right .btn-sm{display:none;}

  .page-hero{padding-top:86px;}
  .page-hero-inner{
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:18px;
    min-height:160px;
    padding-top:18px;
    padding-bottom:28px;
  }
  .page-hero h1{font-size:28px;}
  .page-hero-lead{font-size:14px;}

  .section{padding:56px 0;}
  .section-sm{padding:36px 0;}
  .stats-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .stat-num{font-size:30px;}

  .flow-step{padding-left:64px;padding-bottom:34px;}
  .flow-num{font-size:36px;width:44px;top:-2px;}
  .flow-step::before{left:22px;top:46px;}
  .flow-body h3{font-size:17px;}
  .flow-body p{font-size:14px;}

  .side-card{padding:22px 20px;}

  .cta-bar{padding:26px 20px;border-radius:var(--radius-card);}
  .cta-actions .btn{width:100%;}

  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:36px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1E4E79;
  --c-primary-d:#163A5C;
  --c-primary-l:#EAF1F7;
  --c-accent:#E3A33B;
  --c-accent-l:#FCF3E2;
  --c-accent-d:#A9701F;
  --c-ink:#16202E;
  --c-text:#26333F;
  --c-muted:#6B7A89;
  --c-bg:#FAFAF7;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4F6F8;
  --c-line:#E3E8ED;
  --c-line-2:#EFF2F5;
  --c-ok:#3F8A6E;
  --c-warn:#C4622D;
  --c-err:#C0392B;
  --r-card:14px;
  --r-lg:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-dock:20px;
  --sh-1:0 1px 2px rgba(22,32,46,.04),0 8px 24px rgba(22,32,46,.06);
  --sh-2:0 2px 4px rgba(22,32,46,.05),0 14px 32px rgba(22,32,46,.09);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:96px;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-d);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.3;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- Dock ---------- */
.dock{
  position:fixed;
  top:16px;left:50%;
  transform:translateX(-50%);
  width:min(1080px,calc(100% - 32px));
  height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 16px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  border-radius:var(--r-dock);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(6px);
  z-index:200;
  transition:height .22s ease,box-shadow .22s ease;
}
.dock.is-scrolled{height:56px;box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:600;font-size:16px;flex:0 0 auto;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  display:grid;place-items:center;
  background:var(--c-primary);color:#fff;
  border-radius:10px;font-size:15px;font-weight:700;line-height:1;
}
.brand-text{white-space:nowrap;letter-spacing:.01em;}
.dock-nav{display:flex;align-items:center;justify-content:center;gap:2px;flex:1 1 auto;}
.dock-nav a{
  position:relative;
  padding:8px 12px;
  font-size:14px;color:var(--c-text);
  border-radius:10px;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.dock-nav a:hover{background:var(--c-surface-2);color:var(--c-primary);}
.dock-nav a.active{color:var(--c-primary);font-weight:600;}
.dock-nav a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  transform:translateX(-50%);
  width:16px;height:3px;border-radius:2px;background:var(--c-accent);
}
.dock-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.dock-icon-btn{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:50%;
  color:var(--c-muted);
  background:transparent;border:0;
  transition:background .18s ease,color .18s ease;
}
.dock-icon-btn:hover{background:var(--c-surface-2);color:var(--c-primary);}
.dock-menu-btn{
  display:none;
  width:40px;height:40px;
  place-items:center;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:#fff;color:var(--c-ink);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary);}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- Page head ---------- */
.page-head{
  position:relative;
  padding:48px 0 44px;
  min-height:220px;
  display:flex;align-items:center;
  background:
    linear-gradient(180deg,rgba(255,255,255,.80),rgba(255,255,255,.78)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.page-head-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;width:100%;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-muted);margin-bottom:14px;flex-wrap:wrap;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C3CCD5;}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}
.page-head h1{
  font-size:clamp(30px,4.2vw,44px);
  font-weight:700;line-height:1.25;letter-spacing:-.01em;
  margin-bottom:14px;
}
.page-lead{font-size:17px;color:var(--c-text);margin:0;max-width:620px;}
.head-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:9px 16px;
  font-size:13px;color:var(--c-primary);font-weight:600;
  box-shadow:var(--sh-1);white-space:nowrap;
}
.head-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-ok);}

/* ---------- Section base ---------- */
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line-2);border-bottom:1px solid var(--c-line-2);}
.section-title{font-size:clamp(22px,2.6vw,30px);}
.section-sub{color:var(--c-muted);font-size:14px;margin:10px 0 0;}
.section-head{margin-bottom:36px;max-width:720px;}

/* ---------- Intro ---------- */
.intro-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:start;}
.intro-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-primary-l);}
.intro-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px;}
.info-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.info-card h3{font-size:16px;margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.info-card h3::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--c-accent);flex:0 0 14px;}
.info-card p{font-size:14px;line-height:1.75;color:var(--c-text);margin:0;}

/* ---------- Q&A layout ---------- */
.qa-layout{margin-top:0;}
.qa-col-left{padding-right:8px;}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:26px;
  position:sticky;top:100px;
}
.side-card h3{font-size:18px;margin-bottom:8px;}
.side-card .side-note{font-size:13px;color:var(--c-muted);line-height:1.7;margin-bottom:18px;}
.contact-list{display:flex;flex-direction:column;gap:14px;margin-bottom:22px;}
.contact-list li{display:flex;gap:10px;font-size:14px;line-height:1.6;color:var(--c-text);}
.contact-list .k{color:var(--c-muted);flex:0 0 68px;}
.contact-list .v{color:var(--c-ink);font-weight:500;word-break:break-all;}
.side-tip{
  background:var(--c-accent-l);color:var(--c-accent-d);
  border-left:3px solid var(--c-accent);
  border-radius:10px;padding:12px 14px;
  font-size:13px;line-height:1.7;margin-top:18px;
}

/* ---------- Foundation accordion overrides ---------- */
.qa-accordion{border:0;background:transparent;margin:0;}
.qa-accordion .accordion-item{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--sh-1);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.qa-accordion .accordion-item:hover{box-shadow:var(--sh-2);}
.qa-accordion .accordion-item.is-active{border-color:#C9D9E6;}
.qa-accordion .accordion-title{
  background:#fff;
  border:0;
  border-left:3px solid var(--c-accent);
  padding:18px 54px 18px 22px;
  font-size:16px;font-weight:600;color:var(--c-ink);
  line-height:1.55;
  transition:color .18s ease,background .18s ease;
}
.qa-accordion .accordion-item.is-active .accordion-title{border-left-color:var(--c-primary);color:var(--c-primary);}
.qa-accordion .accordion-title::before{
  content:"+";
  position:absolute;right:20px;top:50%;left:auto;
  transform:translateY(-50%);
  font-size:20px;font-weight:400;line-height:1;
  color:var(--c-primary);
  transition:transform .2s ease,color .18s ease;
}
.qa-accordion .accordion-item.is-active .accordion-title::before{
  content:"–";
  transform:translateY(-50%) rotate(180deg);
}
.qa-accordion .accordion-content{
  background:#fff;
  border:0;
  border-left:3px solid var(--c-primary-l);
  padding:0 24px 20px 22px;
  font-size:15px;line-height:1.85;color:var(--c-text);
}
.qa-accordion .accordion-content p{margin:0;}
.qa-more{margin-top:22px;font-size:14px;color:var(--c-muted);}

/* ---------- Steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);position:relative;
  transition:transform .18s ease,box-shadow .18s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-num{
  font-size:30px;font-weight:700;line-height:1;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-card h3{font-size:17px;margin-bottom:10px;}
.step-card p{font-size:14px;line-height:1.8;color:var(--c-text);margin:0;}
.step-bar{width:32px;height:3px;border-radius:2px;background:var(--c-accent);margin-bottom:18px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--c-primary-l);
  border:1px solid #D5E3EE;
  border-radius:var(--r-lg);
  padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px;}
.cta-band p{margin:0;font-size:14px;color:var(--c-muted);max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-surface-2);
  border-top:1px solid var(--c-line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:600;font-size:16px;margin-bottom:16px;}
.footer-brand:hover{color:var(--c-primary);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--c-muted);max-width:420px;margin:0;}
.footer-title{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--c-muted);}
.footer-links a:hover{color:var(--c-primary);}
.footer-info{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--c-muted);line-height:1.7;}
.footer-bottom{
  margin-top:44px;
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .dock-nav a{padding:8px 10px;font-size:13.5px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .info-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps-grid{grid-template-columns:1fr;}
  .qa-col-left{padding-right:0;margin-bottom:32px;}
  .side-card{position:static;top:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .dock{gap:10px;padding:0 12px;}
  .dock-nav{
    display:none;
    position:absolute;
    top:calc(100% + 10px);left:0;right:0;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:16px;
    box-shadow:var(--sh-2);
    padding:10px;
    flex-direction:column;align-items:stretch;gap:4px;
  }
  .dock-nav.is-open{display:flex;}
  .dock-nav a{height:48px;display:flex;align-items:center;padding:0 16px;font-size:15px;border-radius:10px;}
  .dock-nav a.active{background:var(--c-primary-l);}
  .dock-nav a.active::after{display:none;}
  .dock-menu-btn{display:inline-grid;}
  .dock-right .btn-sm{display:none;}
}
@media (max-width:767px){
  body{padding-top:88px;}
  .container{padding:0 18px;}
  .dock{height:56px;top:12px;}
  .dock.is-scrolled{height:56px;box-shadow:var(--sh-1);}
  .page-head{padding:36px 0 32px;min-height:160px;}
  .page-head h1{font-size:clamp(26px,7vw,32px);}
  .page-lead{font-size:15px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .info-grid{grid-template-columns:1fr;}
  .qa-accordion .accordion-title{font-size:15px;padding:16px 46px 16px 18px;}
  .qa-accordion .accordion-content{font-size:14.5px;padding:0 18px 18px 18px;}
  .cta-band{padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .side-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:32px;}
  .site-footer{padding-top:48px;}
}