/* roulang page: index */
:root{
  --c-primary:#1B63E8;
  --c-primary-dark:#1246B4;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF8A2B;
  --c-accent2:#14C4A8;
  --c-ink:#10192A;
  --c-ink2:#4A5568;
  --c-ink3:#8A94A6;
  --c-line:#E6EAF2;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 4px 16px rgba(16,25,42,.06);
  --sh-2:0 10px 28px rgba(16,25,42,.10);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;font-weight:700}
h1{font-size:40px}
h2{font-size:30px}
h3{font-size:20px}
p{margin:0}
ul,ol{margin:0;padding:0}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--c-primary-dark)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
.grid-container{max-width:var(--maxw);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-container.full{max-width:100%;padding:0}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x > .cell{padding-left:12px;padding-right:12px}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-dark);color:#fff}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover,.btn-accent:focus{background:#e8791f;color:#fff}
.btn:active{transform:translateY(1px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;line-height:1;
}
.badge-teal{background:rgba(20,196,168,.12);color:#0f9c86}
.pill{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink2);font-size:14px;font-weight:500;
  transition:all .22s ease;
}
.pill:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-more .arrow{transition:transform .22s ease}
.link-more:hover .arrow{transform:translateX(3px)}

/* ---------- 页头导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(16,25,42,.06)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);font-size:18px;font-weight:700}
.brand:hover{color:var(--c-primary)}
.brand svg{width:28px;height:28px;flex:0 0 auto}
.nav-main{display:flex;align-items:center;justify-content:center;gap:2px;flex:1 1 auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;
  font-size:16px;color:var(--c-ink2);font-weight:400;transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link-cta{display:none}
.nav-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;width:200px;height:40px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:999px;background:#fff;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12)}
.nav-search svg{width:16px;height:16px;color:var(--c-ink3);flex:0 0 auto}
.nav-search input{width:100%;border:0;outline:0;background:transparent;font-size:14px;color:var(--c-ink);line-height:1}
.nav-search input::placeholder{color:var(--c-ink3)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;
  border:1px solid var(--c-line);border-radius:10px;background:#fff;cursor:pointer;padding:0 11px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;padding:76px 0 92px;overflow:hidden;background:var(--c-bg)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(102deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.90) 44%,rgba(255,255,255,.74) 100%)}
.hero .grid-container{position:relative;z-index:1}
.hero-grid{align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(27,99,232,.10);color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{margin-bottom:18px;letter-spacing:-.4px}
.hero-sub{font-size:18px;color:var(--c-ink2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;list-style:none}
.hero-badges li{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink2);font-size:13px;font-weight:500;
}
.hero-badges li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent2);margin-right:8px}
.hero-media{position:relative;margin:0}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:18px;
  box-shadow:var(--sh-2);border:1px solid var(--c-line);background:#fff;
}
.hero-stat{
  position:absolute;right:-10px;bottom:-16px;width:118px;height:118px;border-radius:18px;
  background:#fff;box-shadow:var(--sh-2);border:1px solid var(--c-line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
}
.hero-stat strong{font-size:32px;line-height:1;color:var(--c-accent);font-weight:700}
.hero-stat span{font-size:13px;color:var(--c-ink3)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:72px 0}
.section-alt{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head .section-desc{margin-top:12px;font-size:16px;color:var(--c-ink2);max-width:640px}
.section-head h2{font-size:30px}

/* ---------- 服务图文行 ---------- */
.media-row{display:flex;align-items:center;gap:48px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease}
.media-row:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.media-row + .media-row{margin-top:24px}
.media-row.reverse{flex-direction:row-reverse}
.media-row-fig{flex:0 0 40%;margin:0}
.media-row-fig img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--c-line)}
.media-row-body{flex:1 1 auto}
.media-row-body h3{margin:14px 0 12px}
.media-row-body p{margin-bottom:16px}
.dot-list{list-style:none;margin-bottom:20px}
.dot-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--c-ink2)}
.dot-list li + li{margin-top:6px}
.dot-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--c-primary-soft);border:2px solid var(--c-primary)}

/* ---------- 数据带 ---------- */
.stats{background:var(--c-primary-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 24px;text-align:center;border-right:1px solid rgba(27,99,232,.16)}
.stat:last-child{border-right:0}
.stat strong{display:block;font-size:36px;line-height:1.1;color:var(--c-primary);font-weight:700}
.stat strong em{font-size:16px;font-style:normal;font-weight:600;margin-left:2px}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--c-ink2)}

/* ---------- 场景横向卡 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease;
}
.case-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-body{padding:22px 24px 26px}
.case-body h3{margin:12px 0 10px;font-size:19px}
.case-body p{font-size:14px;color:var(--c-ink2);margin-bottom:16px}
.case-card.offset{margin-top:28px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;list-style:none}
.step{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1)}
.step:not(:last-child)::after{
  content:"";position:absolute;top:48px;right:-24px;width:24px;border-top:2px dashed rgba(27,99,232,.35);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:15px;font-weight:700;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14px;color:var(--c-ink2)}

/* ---------- 图文行卡（服务能力） ---------- */
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature{display:flex;gap:16px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease}
.feature:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.feature-icon{
  flex:0 0 auto;width:48px;height:48px;border-radius:12px;background:rgba(20,196,168,.12);
  display:flex;align-items:center;justify-content:center;color:#0f9c86;
}
.feature-icon svg{width:22px;height:22px}
.feature h3{font-size:18px;margin-bottom:8px}
.feature p{font-size:14px;color:var(--c-ink2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{border:0;background:transparent}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  margin-bottom:12px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease;
}
.accordion .accordion-item:hover{box-shadow:var(--sh-2)}
.accordion .accordion-title{
  position:relative;display:block;padding:20px 62px 20px 24px;border:0;background:#fff;
  font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.5;
}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{background:#fff;color:var(--c-primary)}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:600;color:var(--c-primary);line-height:1;
}
.accordion .accordion-item.is-active{border-left:3px solid var(--c-primary)}
.accordion .accordion-item.is-active .accordion-title::before{content:"–"}
.accordion .accordion-content{
  padding:0 24px 22px;border:0;background:#fff;font-size:16px;line-height:1.9;color:var(--c-ink2);
}

/* ---------- 资讯列表卡 ---------- */
.news-grid{margin-top:0}
.post-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.post-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(27,99,232,.35)}
.post-card .badge{align-self:flex-start;margin-bottom:14px}
.post-card h3{
  font-size:18px;font-weight:600;color:var(--c-ink);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--c-primary)}
.post-card p{
  font-size:14px;color:var(--c-ink2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
}
.post-date{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--c-ink3)}
.post-date svg{width:14px;height:14px}
.post-more{font-size:14px;font-weight:600;color:var(--c-primary)}
.empty-state{
  border:1px dashed var(--c-line);background:#fff;border-radius:var(--r-card);
  padding:56px 24px;text-align:center;color:var(--c-ink3);font-size:15px;
}
.news-cell{margin-bottom:24px}

/* ---------- 联系 CTA ---------- */
.contact-card{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:#fff;border:1px solid var(--c-line);border-radius:18px;padding:48px;box-shadow:var(--sh-1);
}
.contact-copy h2{margin-bottom:14px}
.contact-copy p{margin-bottom:20px}
.contact-form{display:grid;gap:16px}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.form-field input,.form-field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-ink);outline:0;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.form-field input:focus,.form-field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12)}
.form-note{font-size:13px;color:var(--c-ink3)}
.form-ok{font-size:14px;color:#0f9c86;display:none}
.form-ok.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--c-bg);border-top:1px solid var(--c-line);padding-top:3px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-ink2);max-width:320px;margin-bottom:18px}
.footer-social{display:flex;gap:10px;list-style:none}
.footer-social a{
  display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink2);transition:all .22s ease;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.footer-social svg{width:18px;height:18px}
.footer-col h4{font-size:16px;margin-bottom:18px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--c-ink2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-ink2);margin-bottom:10px}
.footer-contact svg{width:16px;height:16px;margin-top:5px;color:var(--c-primary);flex:0 0 auto}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink3);
}
.footer-bottom a{color:var(--c-ink3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1280px){
  .nav-search{width:170px}
  .nav-search:focus-within{width:210px}
  .nav-link{padding:0 10px;font-size:15px}
}
@media screen and (max-width:1024px){
  h1{font-size:34px}
  h2{font-size:26px}
  .section{padding:64px 0}
  .hero{padding:56px 0 72px}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){padding-bottom:24px;border-bottom:1px solid rgba(27,99,232,.16)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .case-card.offset{margin-top:0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2)::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .contact-card{grid-template-columns:1fr;gap:32px;padding:36px}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px}
  h1{font-size:30px}
  h2{font-size:24px}
  .section{padding:48px 0}
  .hero{padding:36px 0 56px}
  .hero-sub{font-size:16px;margin-bottom:24px}
  .hero-stat{width:96px;height:96px;right:8px;bottom:-12px}
  .hero-stat strong{font-size:26px}
  .nav-inner{height:60px;gap:12px}
  .nav-search{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-main{
    position:fixed;left:0;right:0;top:60px;bottom:0;z-index:75;
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;
    background:#fff;padding:12px 16px 32px;overflow-y:auto;
    transform:translateY(-10px);opacity:0;visibility:hidden;transition:opacity .25s ease,transform .25s ease,visibility .25s;
  }
  .nav-main.is-open{transform:none;opacity:1;visibility:visible}
  .nav-link{height:auto;padding:16px 4px;font-size:18px;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .nav-link-cta{display:flex;justify-content:center;margin-top:20px;border:0;background:var(--c-primary);color:#fff;border-radius:10px;font-weight:600}
  .nav-link-cta:hover{background:var(--c-primary-dark);color:#fff}
  .nav-mask{display:block;position:fixed;inset:60px 0 0 0;background:rgba(16,25,42,.35);z-index:70;opacity:0;visibility:hidden;transition:.25s}
  .nav-mask.is-open{opacity:1;visibility:visible}
  .media-row,.media-row.reverse{flex-direction:column;gap:20px;padding:20px}
  .media-row-fig{flex:0 0 auto;width:100%}
  .feature-list{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step:not(:last-child)::after{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .stats{padding:40px 0}
  .stat strong{font-size:28px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 32px}
  .contact-card{padding:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:520px){
  .hero-badges li{font-size:12px;padding:0 10px}
  .stat{padding:0 8px}
  .stat strong{font-size:24px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .contact-form .btn{width:100%}
}

/* roulang page: article */
:root{
  --c-primary:#1B63E8;
  --c-primary-dark:#1246B4;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF8A2B;
  --c-accent2:#14C4A8;
  --c-ink:#10192A;
  --c-ink2:#4A5568;
  --c-ink3:#8A94A6;
  --c-line:#E6EAF2;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --shadow-sm:0 4px 16px rgba(16,25,42,.06);
  --shadow-md:0 10px 28px rgba(16,25,42,.10);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --container:1200px;
  --t:.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t)}
a:hover{color:var(--c-primary-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;line-height:1.25}
p{margin:0 0 1em}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.grid-container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:64px 0}
.section-tight{padding:44px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:26px}
.section-head .more-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.section-head .more-link:hover svg{transform:translateX(3px)}
.section-head .more-link svg{width:16px;height:16px;transition:transform var(--t)}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(16,25,42,.06)}
.nav-inner{display:flex;align-items:center;gap:30px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.brand svg{width:28px;height:28px;flex:none}
.brand:hover{color:var(--c-primary)}
.nav-main{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;font-size:16px;color:var(--c-ink2);padding:8px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link-cta{display:none}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{display:flex;align-items:center;gap:8px;width:200px;height:42px;padding:0 16px;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-pill);transition:width var(--t),border-color var(--t),box-shadow var(--t)}
.nav-search svg{width:16px;height:16px;color:var(--c-ink3);flex:none}
.nav-search input{width:100%;min-width:0;border:0;background:transparent;outline:0;font-size:14px}
.nav-search input::placeholder{color:var(--c-ink3)}
.nav-search:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12)}
.nav-toggle{display:none;width:44px;height:44px;padding:0;background:#fff;border:1px solid var(--c-line);border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform var(--t),opacity var(--t)}

/* ===== 按钮 / 徽章 / 标签 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{color:#fff;filter:brightness(.95);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-block{width:100%}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;white-space:nowrap}
.badge-teal{background:rgba(20,196,168,.12);color:#0E9B85}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--radius-pill);background:#fff;border:1px solid var(--c-line);color:var(--c-ink2);font-size:13px;transition:var(--t)}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}

/* ===== 页头 ===== */
.page-banner{
  position:relative;
  padding:30px 0 26px;
  border-bottom:1px solid var(--c-line);
  background-image:linear-gradient(90deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.84) 55%,rgba(255,255,255,.72) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-ink3)}
.breadcrumb a{color:var(--c-ink2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C6CDDA}
.breadcrumb .crumb-cat{color:var(--c-primary);font-weight:600}
.breadcrumb .current{max-width:min(520px,52vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--c-ink3)}
.banner-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;font-weight:600;letter-spacing:.4px;color:var(--c-primary)}
.banner-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-accent)}

/* ===== 文章布局 ===== */
.article-section{padding:40px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start}
.article-head{margin-bottom:20px}
.article-head h1{font-size:30px;font-weight:700;line-height:1.35;max-width:820px;margin-bottom:16px;letter-spacing:.2px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--c-ink3)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{width:14px;height:14px;color:var(--c-ink3)}
.article-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;padding:40px;box-shadow:var(--shadow-sm)}
.article-body{font-size:16px;line-height:1.9;color:var(--c-ink2);word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:20px;font-weight:600;color:var(--c-ink);border-left:4px solid var(--c-primary);padding-left:12px;margin:34px 0 14px;line-height:1.45}
.article-body h3{font-size:18px;font-weight:600;color:var(--c-ink);margin:26px 0 12px}
.article-body h4{font-size:16px;font-weight:600;color:var(--c-ink);margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.3em}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.75em;width:7px;height:7px;border-radius:50%;background:var(--c-primary)}
.article-body ol{counter-reset:artli;list-style:none}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:artli}
.article-body ol li::before{content:counter(artli,decimal-leading-zero);position:absolute;left:0;top:.1em;font-size:13px;font-weight:700;color:var(--c-primary)}
.article-body blockquote{background:var(--c-primary-soft);border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;padding:18px 22px;margin:0 0 1.4em;color:var(--c-ink2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:22px auto;box-shadow:var(--shadow-sm)}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--c-ink3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.5em;font-size:15px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden}
.article-body th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line)}
.article-body tbody tr:nth-child(even){background:#FAFBFE}
.article-body strong{color:var(--c-ink);font-weight:600}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:28px 0}
.empty-state{border:1px dashed var(--c-line);background:#FBFCFE;border-radius:var(--radius-card);padding:56px 24px;text-align:center}
.empty-state svg{width:44px;height:44px;color:var(--c-primary);margin:0 auto 16px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{max-width:520px;margin:0 auto 20px;font-size:15px;color:var(--c-ink2)}

/* ===== 侧栏 ===== */
.article-side{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);padding:22px 22px 8px;box-shadow:var(--shadow-sm)}
.side-card h3{font-size:16px;font-weight:600;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--c-primary);line-height:1.4}
.side-list li{border-bottom:1px solid var(--c-line);padding:12px 0}
.side-list li:last-child{border-bottom:0}
.side-list a{display:block;font-size:14px;font-weight:600;color:var(--c-ink);line-height:1.55;transition:color var(--t)}
.side-list a:hover{color:var(--c-primary)}
.side-list .side-cat{display:block;margin-top:6px;font-size:12px;color:var(--c-ink3);font-weight:400}
.side-tags{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:16px}
.side-cta{background:var(--c-primary-soft);border:1px solid #D5E2FB;border-radius:var(--radius-card);padding:24px 22px}
.side-cta h3{font-size:17px;margin-bottom:8px}
.side-cta p{font-size:14px;color:var(--c-ink2);margin-bottom:16px}
.side-cta .side-note{font-size:12px;color:var(--c-ink3);margin:12px 0 0;text-align:center}

/* ===== 卡片 ===== */
.related-section{padding:0 0 72px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D9E3F6}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 24px}
.card-title{font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.card-desc{font-size:14px;color:var(--c-ink2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink3)}
.card-foot .read-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:13px}
.card-foot .read-more svg{width:14px;height:14px;transition:transform var(--t)}
.card-foot .read-more:hover svg{transform:translateX(3px)}

/* ===== 文章底部操作 ===== */
.post-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:26px}

/* ===== CTA 区 ===== */
.cta-section{padding:0 0 80px}
.cta-band{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;background:linear-gradient(135deg,#EAF1FE 0%,#E9F7F4 100%);border:1px solid #D5E2FB;border-radius:18px;padding:40px}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-band p{font-size:15px;color:var(--c-ink2);margin-bottom:0}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.cta-points span{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--radius-pill);background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-ink2)}
.cta-form{background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:24px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:6px}
.field input,.field textarea{width:100%;height:46px;padding:0 14px;background:#fff;border:1px solid var(--c-line);border-radius:10px;outline:0;transition:border-color var(--t),box-shadow var(--t)}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:12px;color:var(--c-ink3);margin:10px 0 0}
.form-success{display:none;margin-top:12px;font-size:13px;font-weight:600;color:#0E9B85}

/* ===== 页脚 ===== */
.site-footer{position:relative;background:var(--c-bg);border-top:1px solid var(--c-line)}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:3px;background:var(--c-primary)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px;padding:52px 0 34px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-ink2);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:#fff;border:1px solid var(--c-line);color:var(--c-ink2);transition:var(--t)}
.footer-social a:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft)}
.footer-social svg{width:18px;height:18px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--c-ink2)}
.footer-col ul a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--c-ink2);margin-bottom:10px}
.footer-contact svg{width:16px;height:16px;color:var(--c-primary);flex:none;margin-top:4px}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;padding:18px 0 28px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink3)}
.footer-bottom p{margin:0}
.footer-bottom a{color:var(--c-ink3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ===== 断点 ===== */
@media (max-width:1180px){
  .nav-main{gap:18px}
  .nav-link{font-size:15px}
  .nav-search{width:170px}
  .nav-search:focus-within{width:210px}
}
@media (max-width:960px){
  .grid-container{padding-left:20px;padding-right:20px}
  .nav-inner{height:60px;gap:14px}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .nav-cta{display:none}
  .nav-main{
    position:fixed;left:0;right:0;top:60px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 20px 110px;margin:0;background:#fff;overflow-y:auto;
    transform:translateY(-10px);opacity:0;visibility:hidden;transition:opacity var(--t),transform var(--t),visibility var(--t);
  }
  .nav-main.is-open{transform:none;opacity:1;visibility:visible}
  .nav-link{font-size:18px;padding:15px 2px;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--c-primary-soft);border-radius:10px;padding-left:14px;padding-right:14px}
  .nav-link-cta{display:inline-flex;align-items:center;justify-content:center;margin-top:20px;height:48px;border-radius:var(--radius-btn);background:var(--c-primary);color:#fff;font-size:16px;font-weight:600;border-bottom:0;padding:0}
  .nav-link-cta:hover{background:var(--c-primary-dark);color:#fff}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .article-side{position:static}
  .article-card{padding:26px 20px;border-radius:14px}
  .article-head h1{font-size:26px}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:28px 22px;gap:24px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 28px}
  .section{padding:48px 0}
}
@media (max-width:600px){
  .brand{font-size:16px}
  .brand svg{width:24px;height:24px}
  .article-head h1{font-size:24px}
  .breadcrumb .current{max-width:150px}
  .article-meta{font-size:12px;gap:8px 14px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .field-row{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:22px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B63E8;
  --c-primary-dark:#1246B4;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF8A2B;
  --c-accent2:#14C4A8;
  --c-ink:#10192A;
  --c-ink2:#4A5568;
  --c-ink3:#8A94A6;
  --c-line:#E6EAF2;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(16,25,42,.06);
  --sh-2:0 10px 28px rgba(16,25,42,.10);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4{margin:0 0 16px;color:var(--c-ink);line-height:1.25;font-weight:700}
h1{font-size:40px}
h2{font-size:30px}
h3{font-size:20px}
h4{font-size:16px}
p{margin:0 0 16px}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark)}
img{max-width:100%;display:block;border-style:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:rgba(27,99,232,.16)}

/* 容器 */
.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;text-align:center;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#e8781c;color:#fff}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(16,25,42,.06)}
.nav-inner{position:relative;display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:.2px}
.brand svg{width:26px;height:26px;flex:0 0 auto}
.brand:hover{color:var(--c-primary)}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 13px;font-size:16px;color:var(--c-ink2)}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:18px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link-cta{display:none}
.nav-tools{display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:13px;width:18px;height:18px;color:var(--c-ink3);pointer-events:none}
.nav-search input{
  width:200px;height:42px;padding:0 14px 0 40px;font-size:14px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--c-ink3)}
.nav-search input:focus{outline:none;width:260px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;border:1px solid var(--c-line);
  border-radius:10px;background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 区块基础 */
.section{padding:88px 0}
.section-white{background:#fff}
.section-soft{background:var(--c-primary-soft)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-block;margin-bottom:12px;font-size:13px;font-weight:600;
  letter-spacing:.14em;color:var(--c-primary);
}
.section-head p{margin-bottom:0}

/* 页头区 */
.page-hero{
  position:relative;
  padding:72px 0 56px;
  background-image:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.86) 52%,rgba(255,255,255,.76) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--c-line);
}
.page-hero h1{max-width:840px;margin-bottom:18px}
.page-hero .hero-lead{max-width:720px;font-size:17px;color:var(--c-ink2);margin-bottom:26px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;font-size:13px;color:var(--c-ink3)}
.breadcrumb a{color:var(--c-ink3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#c3cad9}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;min-height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-ink2);
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--c-accent2);display:inline-block}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 锚点条 */
.anchor-bar{position:sticky;top:72px;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--c-line);padding:12px 0}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px}
.anchor-pill{
  display:inline-flex;align-items:center;min-height:38px;padding:0 16px;
  border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);
  font-size:14px;font-weight:600;border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.anchor-pill:hover{background:#dbe7fd;color:var(--c-primary-dark);transform:translateY(-1px)}
.anchor-pill.is-active{background:var(--c-primary);color:#fff}

/* 图文交替 */
.feature-row.grid-margin-x{margin-left:-24px;margin-right:-24px}
.feature-row.grid-margin-x>.cell{padding-left:24px;padding-right:24px}
.feature-row{margin-bottom:8px}
.feature-media{position:relative}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:18px;box-shadow:var(--sh-1);
}
.media-badge{
  position:absolute;left:16px;top:16px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--c-primary);font-size:13px;font-weight:600;
  box-shadow:0 2px 8px rgba(16,25,42,.08);
}
.feature-body h2{margin-bottom:14px}
.feature-body>p{font-size:16px;line-height:1.9}
.point-list{margin:18px 0 22px}
.point-list li{position:relative;padding-left:24px;margin-bottom:12px;line-height:1.85}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;
  border-radius:50%;background:var(--c-primary);
}
.point-list li strong{color:var(--c-ink);font-weight:600}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600}
.text-link svg{width:16px;height:16px;transition:transform .25s ease}
.text-link:hover svg{transform:translateX(4px)}

/* 数据带 */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.stat{padding:30px 24px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;font-family:system-ui,"Segoe UI",var(--font-cn)}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--c-primary)}
.stat-label{margin-top:8px;font-size:14px;color:var(--c-ink2)}
.stat-desc{margin-top:4px;font-size:13px;color:var(--c-ink3)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-left:3px solid transparent;
  border-radius:var(--r-card);padding:0 22px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item[open]{border-left-color:var(--c-primary);box-shadow:var(--sh-2)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:18px;font-weight:600;color:var(--c-ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--c-primary-soft)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px;transition:transform .25s ease,opacity .25s ease}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 0 22px;font-size:16px;line-height:1.9;color:var(--c-ink2)}
.faq-answer p:last-child{margin-bottom:0}

/* CTA 与表单 */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;
  padding:44px;background:#fff;border:1px solid var(--c-line);
  border-radius:18px;box-shadow:var(--sh-1);
}
.cta-panel h2{margin-bottom:14px}
.cta-list{margin:0 0 24px}
.cta-list li{position:relative;padding-left:24px;margin-bottom:10px;font-size:15px}
.cta-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;
  border-radius:50%;background:var(--c-accent2);
}
.form-grid{display:grid;gap:16px}
.field label{display:block;margin-bottom:6px;font-size:14px;font-weight:600;color:var(--c-ink)}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;padding:10px 14px;font-size:15px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12);
}
.form-note{font-size:13px;color:var(--c-ink3);margin:0}
.form-msg{display:none;font-size:14px;font-weight:600;color:#0e9c86;margin:0}
.form-msg.is-visible{display:block}

/* 相关入口胶囊 */
.rel-links{display:flex;flex-wrap:wrap;gap:12px}
.rel-link{
  display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:0 20px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;
  font-size:15px;font-weight:600;color:var(--c-ink);
  transition:border-color .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.rel-link svg{width:16px;height:16px;color:var(--c-primary)}
.rel-link:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1)}

/* 页脚 */
.site-footer{position:relative;background:var(--c-bg);border-top:1px solid var(--c-line);padding-top:64px;margin-top:8px}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-primary)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin:16px 0 18px;font-size:14px;line-height:1.9;color:var(--c-ink2)}
.footer-social{display:flex;gap:10px}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:50%;background:#fff;border:1px solid var(--c-line);color:var(--c-ink2);
  transition:color .25s ease,border-color .25s ease,transform .25s ease;
}
.footer-social a:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px)}
.footer-social svg{width:20px;height:20px}
.footer-col h4{margin-bottom:16px;font-size:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--c-ink2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;font-size:14px;color:var(--c-ink2)}
.footer-contact svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:var(--c-primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--c-line);padding:20px 0 28px;font-size:13px;color:var(--c-ink3);
}
.footer-bottom a{color:var(--c-ink3)}
.footer-bottom a:hover{color:var(--c-primary)}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:14px}

/* 响应式 */
@media screen and (max-width:1280px){
  .nav-search input{width:170px}
  .nav-link{padding:0 10px;font-size:15px}
}
@media screen and (max-width:1024px){
  h1{font-size:32px}
  h2{font-size:26px}
  .section{padding:64px 0}
  .nav-inner{height:64px;gap:14px}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-main{
    position:absolute;left:-24px;right:-24px;top:100%;z-index:70;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    background:#fff;border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-2);padding:6px 24px 22px;display:none;
  }
  .nav-main.is-open{display:flex}
  .nav-link{height:auto;padding:14px 2px;font-size:18px;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .nav-link.is-active::after{display:none}
  .nav-link-cta{
    display:inline-flex;justify-content:center;align-items:center;height:48px;
    margin-top:18px;border:0;border-radius:var(--r-btn);
    background:var(--c-primary);color:#fff;font-size:16px;font-weight:600;
  }
  .nav-link-cta:hover{background:var(--c-primary-dark);color:#fff}
  .anchor-bar{top:64px}
  .page-hero{padding:56px 0 44px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feature-row{margin-bottom:56px}
  .feature-row.grid-margin-x>.cell{padding-bottom:0}
  .feature-media{margin-bottom:24px}
  .feature-row--reverse .feature-body{order:2}
  .feature-row--reverse .feature-media{order:1}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px}
  .nav-main{left:-16px;right:-16px;padding-left:16px;padding-right:16px}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:18px}
  .section{padding:48px 0}
  .page-hero{padding:40px 0 36px}
  .page-hero .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .stats-band{grid-template-columns:1fr 1fr}
  .stat{border-right:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(n+3){border-bottom:0}
  .stat-num{font-size:30px}
  .faq-item{padding:0 18px}
  .faq-item summary{font-size:16px;padding:16px 0}
  .cta-panel{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .feature-row{margin-bottom:44px}
  .section-head{margin-bottom:32px}
}
@media screen and (max-width:520px){
  .brand span{font-size:16px}
  .brand svg{width:22px;height:22px}
  .stats-band{border-radius:var(--r-img)}
  .stat{padding:22px 16px}
  .feature-media img{border-radius:var(--r-img)}
  .anchor-pill{font-size:13px;padding:0 12px;min-height:34px}
  .rel-link{width:100%;justify-content:space-between}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B63E8;
  --c-primary-dark:#1246B4;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF8A2B;
  --c-accent2:#14C4A8;
  --c-ink:#10192A;
  --c-ink2:#4A5568;
  --c-ink3:#8A94A6;
  --c-line:#E6EAF2;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(16,25,42,.06);
  --sh-2:0 10px 28px rgba(16,25,42,.10);
  --sec:88px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;font-weight:600;}
h1{font-size:40px;font-weight:700;}
h2{font-size:30px;font-weight:700;}
h3{font-size:20px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.sec{padding:var(--sec) 0;}
.sec-sm{padding:64px 0;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head p{margin-top:14px;font-size:16px;color:var(--c-ink2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);background:var(--c-primary-soft);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .25s ease;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.btn-accent:hover{background:#ef7a17;border-color:#ef7a17;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link span{transition:transform .25s ease;display:inline-block;}
.text-link:hover span{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(16,25,42,.06);}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;}
.brand svg{width:26px;height:26px;flex:none;}
.brand:hover{color:var(--c-primary);}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 14px;font-size:16px;color:var(--c-ink2);font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-link-cta{display:none;}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:42px;width:200px;
  padding:0 14px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-pill);transition:width .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.nav-search svg{width:18px;height:18px;color:var(--c-ink3);flex:none;}
.nav-search input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  font-size:15px;color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-ink3);}
.nav-search:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;
  border-radius:10px;cursor:pointer;padding:11px;flex-direction:column;justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(9px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-9px) rotate(-45deg);}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;padding:76px 0 56px;overflow:hidden;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 55%,rgba(255,255,255,.78) 100%);
}
.page-hero .grid-container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-ink3);margin-bottom:20px;}
.crumb a{color:var(--c-ink3);}
.crumb a:hover{color:var(--c-primary);}
.crumb span[aria-current]{color:var(--c-ink);font-weight:600;}
.page-hero h1{max-width:820px;margin-bottom:18px;}
.hero-lead{max-width:680px;font-size:17px;color:var(--c-ink2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.chip-nav{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;
  position:sticky;top:72px;z-index:20;padding:10px 0;
  background:linear-gradient(180deg,rgba(246,248,252,.96) 60%,rgba(246,248,252,0));
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-ink2);
  transition:all .25s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1);}
.chip.is-current{background:var(--c-primary-soft);border-color:rgba(27,99,232,.35);color:var(--c-primary);}

/* ---------- 卡片网格 ---------- */
.card-grid{margin-top:-8px;}
.score-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.score-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#d7e0f3;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.score-card:hover .card-media img{transform:scale(1.04);}
.badge{
  position:absolute;top:14px;left:14px;
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;backdrop-filter:none;
}
.badge-teal{background:rgba(20,196,168,.14);color:#0e8d7a;}
.badge-orange{background:rgba(255,138,43,.15);color:#c9660f;}
.card-body{padding:24px 24px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:18px;margin-bottom:10px;}
.card-body p{font-size:14px;color:var(--c-ink2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--c-ink3);}
.card-meta svg{width:15px;height:15px;}

/* ---------- 数据带 ---------- */
.data-band{background:var(--c-primary-soft);}
.data-row{display:grid;grid-template-columns:repeat(4,1fr);}
.data-item{padding:8px 28px;border-left:1px solid rgba(27,99,232,.16);}
.data-item:first-child{border-left:0;padding-left:0;}
.data-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;font-family:system-ui,-apple-system,sans-serif;}
.data-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--c-primary);}
.data-label{margin-top:8px;font-size:14px;color:var(--c-ink2);}

/* ---------- 流程 ---------- */
.flow-row{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.flow-item{position:relative;padding-top:8px;}
.flow-item::after{
  content:"";position:absolute;top:26px;left:calc(50% + 30px);width:calc(100% - 60px);
  border-top:2px dashed rgba(27,99,232,.28);
}
.flow-item:last-child::after{display:none;}
.flow-dot{
  width:44px;height:44px;border-radius:50%;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  position:relative;z-index:1;margin:0 auto 18px;font-family:system-ui,sans-serif;
  box-shadow:0 6px 16px rgba(27,99,232,.24);
}
.flow-item h3{font-size:18px;text-align:center;margin-bottom:8px;}
.flow-item p{font-size:14px;text-align:center;}

/* ---------- 场景窄卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.scene-icon{
  width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:18px;
}
.scene-icon.teal{background:rgba(20,196,168,.14);color:#0e8d7a;}
.scene-icon.orange{background:rgba(255,138,43,.15);color:#c9660f;}
.scene-icon svg{width:24px;height:24px;}
.scene-card h3{font-size:18px;margin-bottom:10px;}
.scene-card p{font-size:14px;}

/* ---------- 图文行 ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);}
.tick-list{margin-top:20px;display:grid;gap:12px;}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--c-ink2);}
.tick-list li::before{
  content:"";flex:none;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary);margin-top:11px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:grid;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;position:relative;transition:border-color .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
  transform:scaleY(0);transform-origin:top;transition:transform .3s ease;
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-item.is-open{border-color:rgba(27,99,232,.3);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--c-ink);
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  flex:none;width:24px;height:24px;border-radius:50%;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  transition:transform .3s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding:0 24px 22px;font-size:16px;color:var(--c-ink2);line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:18px;
  padding:44px;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--sh-1);
}
.cta-band h2{font-size:26px;margin-bottom:12px;}
.cta-band p{font-size:15px;}
.cta-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--c-ink);}
.field input,.field select{
  height:46px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  padding:0 14px;font-size:15px;color:var(--c-ink);outline:none;
  transition:border-color .25s ease,box-shadow .25s ease;font-family:inherit;
}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12);}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--c-ink3);}
.form-ok{grid-column:1 / -1;font-size:13px;color:#0e8d7a;display:none;}
.form-ok.show{display:block;}

/* ---------- 互链胶囊 ---------- */
.cross-links{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px;}
.cross-links a{
  display:inline-flex;align-items:center;gap:6px;height:42px;padding:0 20px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);
  font-size:15px;font-weight:600;color:var(--c-ink2);transition:all .25s ease;
}
.cross-links a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;background:var(--c-bg);border-top:1px solid var(--c-line);
  position:relative;padding:64px 0 0;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:40px;height:40px;border-radius:10px;background:#fff;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-ink2);transition:all .25s ease;
}
.footer-social a:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px);}
.footer-social svg{width:19px;height:19px;}
.footer-col h4{font-size:16px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--c-ink2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-ink2);}
.footer-contact svg{width:17px;height:17px;flex:none;margin-top:5px;color:var(--c-primary);}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--c-line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--c-ink3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom a{color:var(--c-ink3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--sec:64px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-main{
    position:fixed;top:72px;left:0;right:0;bottom:0;z-index:70;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:16px 24px 96px;margin:0;overflow-y:auto;
    border-top:1px solid var(--c-line);display:none;
  }
  .nav-main.is-open{display:flex;}
  .nav-link{height:auto;padding:16px 4px;font-size:18px;border-bottom:1px solid var(--c-line);}
  .nav-link::after{display:none;}
  .nav-link-cta{
    display:flex;justify-content:center;margin-top:20px;border-bottom:0;
    background:var(--c-primary);color:#fff;border-radius:var(--r-btn);height:48px;
    padding:0;font-weight:600;
  }
  .nav-link-cta:hover{background:var(--c-primary-dark);color:#fff;}
  .nav-cta.desktop-cta{display:none;}
  .data-row{grid-template-columns:1fr 1fr;gap:24px 0;}
  .data-item{padding:0 20px;}
  .data-item:nth-child(odd){border-left:0;padding-left:0;}
  .flow-row{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .flow-item::after{display:none;}
  .scene-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .chip-nav{position:static;padding:0;background:none;}
}
@media screen and (max-width:768px){
  :root{--sec:48px;--gap:16px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .page-hero{padding:52px 0 40px;}
  .hero-lead{font-size:16px;}
  .brand span{font-size:17px;}
  .card-body{padding:20px;}
  .cta-form{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .data-row{grid-template-columns:1fr 1fr;}
  .data-num{font-size:28px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{padding:0 18px 18px;font-size:15px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1B63E8;
  --c-primary-dark:#1246B4;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF8A2B;
  --c-accent2:#14C4A8;
  --c-ink:#10192A;
  --c-ink2:#4A5568;
  --c-ink3:#8A94A6;
  --c-line:#E6EAF2;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 4px 16px rgba(16,25,42,.06);
  --sh-hover:0 10px 28px rgba(16,25,42,.10);
  --pad-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0 0 16px;
  color:var(--c-ink);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.2px;
}
h1{font-size:40px;}
h2{font-size:30px;}
h3{font-size:20px;font-weight:600;}
h4{font-size:17px;font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-x.gutter{margin-left:-12px;margin-right:-12px;}
.grid-x.gutter>.cell{padding-left:12px;padding-right:12px;}
section{position:relative;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(16,25,42,.06);}
.nav-inner{display:flex;align-items:center;height:72px;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand svg{width:26px;height:26px;flex:0 0 auto;}
.brand span{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;transition:color .25s ease;}
.brand:hover span{color:var(--c-primary);}
.nav-main{display:flex;align-items:center;gap:2px;margin:0 auto;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:16px;
  font-weight:500;
  color:var(--c-ink2);
  border-radius:8px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-link-cta{display:none;}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  position:relative;
  width:200px;
  transition:width .25s ease;
}
.nav-search svg{
  position:absolute;
  left:13px;
  top:50%;
  transform:translateY(-50%);
  width:16px;
  height:16px;
  color:var(--c-ink3);
  pointer-events:none;
}
.nav-search input{
  width:100%;
  height:42px;
  border:1px solid var(--c-line);
  border-radius:999px;
  background:#fff;
  padding:0 16px 0 38px;
  font-size:14px;
  color:var(--c-ink);
  outline:none;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.nav-search input::placeholder{color:var(--c-ink3);}
.nav-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12);}
.nav-search:focus-within{width:260px;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:#fff;
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#e9761c;color:#fff;}
.btn:active{transform:translateY(1px);}

/* ===== 页头区 ===== */
.page-hero{
  background-image:linear-gradient(90deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 55%,rgba(255,255,255,.78) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
  padding:56px 0 52px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-ink3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--c-ink3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#c9d1e0;}
.breadcrumb .current{color:var(--c-ink);font-weight:600;}
.page-hero h1{max-width:840px;margin-bottom:18px;}
.page-hero .lede{max-width:760px;font-size:17px;color:var(--c-ink2);margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  background:var(--c-primary-soft);
  color:var(--c-primary-dark);
}
.tag-pill.mint{background:rgba(20,196,168,.12);color:#0d8f7c;}
.tag-pill.orange{background:rgba(255,138,43,.14);color:#c15f10;}

/* ===== 锚点条 ===== */
.anchor-bar{
  position:sticky;
  top:72px;
  z-index:60;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--c-line);
}
.anchor-bar .grid-container{display:flex;flex-wrap:wrap;gap:10px;padding-top:12px;padding-bottom:12px;}
.anchor-link{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  font-size:14px;
  font-weight:500;
  color:var(--c-ink2);
}
.anchor-link:hover{border-color:var(--c-primary);color:var(--c-primary);}
.anchor-link.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ===== 通用板块 ===== */
.section{padding:var(--pad-section) 0;}
.section.alt{background:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:2px;
  color:var(--c-primary);
  margin-bottom:12px;
}
.section-head p{font-size:16px;color:var(--c-ink2);margin-top:12px;}

/* ===== 图文行 ===== */
.feature-row{align-items:center;}
.feature-row + .feature-row{margin-top:72px;}
.feature-figure{
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--sh-card);
  border:1px solid var(--c-line);
  background:#fff;
}
.feature-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.feature-copy h2{font-size:26px;margin-bottom:14px;}
.feature-copy p{margin-bottom:16px;}
.dot-list{margin:0 0 20px;}
.dot-list li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  font-size:15px;
  color:var(--c-ink2);
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--c-primary);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
}
.text-link svg{width:16px;height:16px;transition:transform .25s ease;}
.text-link:hover svg{transform:translateX(3px);}

/* ===== 时间轴 ===== */
.timeline{position:relative;padding-left:44px;margin-top:8px;}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:12px;
  bottom:12px;
  width:1px;
  background:var(--c-line);
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-44px;
  top:12px;
  width:15px;
  height:15px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--c-primary);
  box-shadow:0 0 0 4px rgba(27,99,232,.10);
}
.tl-card{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 28px;
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.tl-num{
  position:absolute;
  right:18px;
  top:4px;
  font-size:64px;
  font-weight:700;
  line-height:1;
  letter-spacing:-3px;
  color:rgba(27,99,232,.08);
  pointer-events:none;
}
.tl-card h3{position:relative;margin-bottom:10px;padding-right:80px;}
.tl-card p{position:relative;font-size:15px;color:var(--c-ink2);margin-bottom:12px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;}
.tl-meta span{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-soft);
  color:var(--c-primary-dark);
  font-size:13px;
  font-weight:600;
}

/* ===== 深色指标面板 ===== */
.perf-section{background:var(--c-ink);color:#c9d2e2;padding:var(--pad-section) 0;}
.perf-section h2{color:#fff;}
.perf-section .eyebrow{color:var(--c-accent);}
.perf-section .section-head p{color:#a8b3c7;}
.perf-grid{margin-top:8px;}
.perf-item{
  height:100%;
  padding:26px 24px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
  transition:background-color .25s ease,transform .25s ease;
}
.perf-item:hover{background:rgba(255,255,255,.08);transform:translateY(-3px);}
.perf-item strong{
  display:block;
  font-size:36px;
  font-weight:700;
  line-height:1.1;
  color:#fff;
  letter-spacing:-1px;
  margin-bottom:10px;
}
.perf-item strong em{font-style:normal;font-size:16px;font-weight:600;color:var(--c-accent);margin-left:4px;}
.perf-item h3{font-size:16px;color:#fff;margin-bottom:8px;}
.perf-item p{font-size:14px;color:#a8b3c7;line-height:1.75;}

/* ===== FAQ ===== */
.faq-list{max-width:880px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:box-shadow .25s ease;
}
.faq-item[open]{box-shadow:var(--sh-hover);border-left:3px solid var(--c-primary);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  font-size:18px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  font-size:16px;
  line-height:24px;
  text-align:center;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 24px 22px;font-size:16px;color:var(--c-ink2);line-height:1.9;}

/* ===== CTA ===== */
.cta-section{padding:0 0 var(--pad-section);}
.cta-box{
  background:var(--c-primary-soft);
  border:1px solid #d3e2fb;
  border-radius:18px;
  padding:44px;
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-box h2{font-size:28px;margin-bottom:12px;}
.cta-box p{font-size:15px;margin-bottom:0;}
.cta-points{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px;}
.cta-points span{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:#fff;
  color:var(--c-primary-dark);
  font-size:13px;
  font-weight:600;
  border:1px solid #d3e2fb;
}
.lead-form{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-card);
}
.lead-form .field{margin-bottom:14px;}
.lead-form label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:6px;}
.lead-form input,
.lead-form textarea{
  width:100%;
  height:46px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  padding:0 14px;
  font-size:15px;
  color:var(--c-ink);
  outline:none;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.lead-form textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.lead-form input::placeholder,
.lead-form textarea::placeholder{color:var(--c-ink3);}
.lead-form input:focus,
.lead-form textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12);}
.lead-form .btn{width:100%;}
.form-note{font-size:13px;color:var(--c-ink3);margin-top:12px;text-align:center;}

/* ===== 相关分类 ===== */
.related-section{padding:0 0 var(--pad-section);}
.related-box{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--sh-card);
}
.related-box h2{font-size:22px;margin-bottom:18px;}
.related-pills{display:flex;flex-wrap:wrap;gap:12px;}
.related-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  font-size:15px;
  font-weight:600;
  color:var(--c-ink2);
  transition:border-color .25s ease,color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.related-pill svg{width:16px;height:16px;color:var(--c-primary);}
.related-pill:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-card);}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--c-bg);
  border-top:1px solid var(--c-line);
  position:relative;
  padding-top:64px;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-1px;
  height:3px;
  background:var(--c-primary);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--c-ink2);max-width:340px;margin-bottom:18px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:10px;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-primary);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.footer-social a:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-card);}
.footer-social svg{width:18px;height:18px;}
.footer-col h4{font-size:16px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--c-ink2);}
.footer-col ul li a:hover{color:var(--c-primary);}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  color:var(--c-ink2);
  margin-bottom:10px;
}
.footer-contact svg{width:16px;height:16px;margin-top:5px;color:var(--c-primary);flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:14px;
  color:var(--c-ink3);
}
.footer-bottom .legal{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}
.footer-bottom a{color:var(--c-ink3);}
.footer-bottom a:hover{color:var(--c-primary);}
.record-slot{height:14px;}

@media screen and (max-width:1279px){
  :root{--pad-section:72px;}
  h1{font-size:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media screen and (max-width:991px){
  :root{--pad-section:64px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .nav-inner{height:60px;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-main{
    position:fixed;
    left:0;right:0;top:60px;bottom:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:12px 20px 40px;
    margin:0;
    overflow-y:auto;
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
    border-top:1px solid var(--c-line);
  }
  .nav-main.is-open{transform:none;opacity:1;visibility:visible;}
  .nav-link{
    height:56px;
    padding:0 4px;
    font-size:18px;
    border-bottom:1px solid var(--c-line);
    border-radius:0;
  }
  .nav-link::after{display:none;}
  .nav-link-cta{
    display:flex;
    justify-content:center;
    margin-top:20px;
    height:48px;
    border-radius:var(--r-btn);
    background:var(--c-primary);
    color:#fff;
    font-weight:600;
    border-bottom:none;
  }
  .nav-link-cta:hover{background:var(--c-primary-dark);color:#fff;}
  .anchor-bar{top:60px;}
  .anchor-bar .grid-container{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
  .anchor-bar .grid-container::-webkit-scrollbar{display:none;}
  .anchor-link{flex:0 0 auto;}
  .cta-box{grid-template-columns:1fr;padding:32px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:767px){
  :root{--pad-section:48px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .page-hero{padding:40px 0 36px;}
  .page-hero .lede{font-size:16px;}
  .section-head{margin-bottom:32px;}
  .feature-row + .feature-row{margin-top:48px;}
  .feature-copy h2{font-size:22px;}
  .timeline{padding-left:32px;}
  .tl-item::before{left:-32px;}
  .tl-card{padding:20px;}
  .tl-num{font-size:48px;right:14px;}
  .tl-card h3{padding-right:56px;}
  .perf-item strong{font-size:30px;}
  .faq-item summary{font-size:16px;padding:18px 18px;}
  .faq-answer{padding:0 18px 18px;font-size:15px;}
  .cta-box{padding:26px 20px;}
  .lead-form{padding:20px;}
  .related-box{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1B63E8;
  --c-primary-dark:#1246B4;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF8A2B;
  --c-accent2:#14C4A8;
  --c-ink:#10192A;
  --c-ink2:#4A5568;
  --c-ink3:#8A94A6;
  --c-line:#E6EAF2;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-s:0 4px 16px rgba(16,25,42,.06);
  --shadow-h:0 10px 28px rgba(16,25,42,.10);
  --container:1200px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0 0 .6em;color:var(--c-ink);line-height:1.25;font-weight:700;font-family:inherit;}
h1{font-size:40px;letter-spacing:-.5px;}
h2{font-size:30px;}
h3{font-size:20px;font-weight:600;}
h4{font-size:17px;font-weight:600;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
ul,ol{margin:0 0 1em;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 布局容器 ---------- */
.grid-container{
  max-width:var(--container);
  width:100%;
  padding-left:24px;
  padding-right:24px;
  margin:0 auto;
}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--c-ink2);margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:999px;padding:6px 16px;margin-bottom:16px;
}
.surface{background:var(--c-surface);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-h);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover,.btn-accent:focus{background:#EC7614;color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.text-link svg{transition:transform .25s ease;}
.text-link:hover svg{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(16,25,42,.06);}
.nav-inner{display:flex;align-items:center;gap:28px;height:var(--header-h);}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--c-ink);
  flex:0 0 auto;
}
.brand svg{width:28px;height:28px;flex:0 0 28px;}
.brand:hover{color:var(--c-primary);}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:44px;padding:0 14px;
  font-size:16px;color:var(--c-ink2);
  border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-link-cta{display:none;}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:200px;height:42px;
  background:#fff;border:1px solid var(--c-line);border-radius:999px;
  padding:0 14px;
  transition:width .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.nav-search svg{width:18px;height:18px;color:var(--c-ink3);flex:0 0 18px;}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:100%;height:100%;margin:0;
  font-size:14px;color:var(--c-ink);
  padding-left:8px;
  box-shadow:none;
}
.nav-search input::placeholder{color:var(--c-ink3);}
.nav-search:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12);}
.nav-cta{display:inline-flex;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);border-radius:10px;background:#fff;
  padding:0;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-ink);border-radius:2px;transition:.25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:76px 0 64px;
  background-image:linear-gradient(96deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 52%,rgba(255,255,255,.80) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--c-ink3);margin-bottom:20px;
}
.breadcrumb a{color:var(--c-ink3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C7CEDB;}
.breadcrumb .cur{color:var(--c-ink2);font-weight:600;}
.page-hero h1{max-width:820px;margin-bottom:18px;}
.page-hero .lede{max-width:720px;font-size:17px;color:var(--c-ink2);margin:0;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 14px;
  border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:14px;font-weight:600;
}
.tag-teal{background:rgba(20,196,168,.12);color:#0E9C86;}

/* ---------- 子导航 ---------- */
.subnav{
  position:sticky;top:var(--header-h);z-index:40;
  background:#fff;border-bottom:1px solid var(--c-line);
  padding:12px 0;
}
.subnav-inner{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;}
.subnav-inner::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;
  height:40px;padding:0 18px;
  border-radius:999px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink2);
  font-size:15px;white-space:nowrap;
  transition:.25s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.chip.is-current{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary);font-weight:600;}

/* ---------- 对比表 ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-s);overflow:hidden;
}
.compare-table{width:100%;border-collapse:collapse;margin:0;}
.compare-table thead th{
  background:var(--c-primary-soft);
  color:var(--c-ink);
  font-size:15px;font-weight:700;
  text-align:left;
  padding:18px 22px;
  border-bottom:1px solid var(--c-line);
}
.compare-table tbody td{
  padding:18px 22px;
  font-size:15px;
  color:var(--c-ink2);
  border-bottom:1px solid var(--c-line);
  vertical-align:top;
}
.compare-table tbody tr:nth-child(even){background:#FAFBFE;}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody td:first-child{color:var(--c-ink);font-weight:600;}
.mark-off{color:var(--c-ink3);display:inline-flex;align-items:center;gap:8px;}
.mark-off::before{
  content:"";width:18px;height:18px;flex:0 0 18px;border-radius:50%;
  background:#EFF2F7;border:1px solid var(--c-line);
}
.mark-on{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.mark-on::before{
  content:"";width:18px;height:18px;flex:0 0 18px;border-radius:50%;
  background:var(--c-primary);
  box-shadow:inset 0 0 0 4px #fff;
}

/* ---------- 窄卡 ---------- */
.narrow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.narrow-card{
  display:flex;flex-direction:column;gap:14px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-s);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.narrow-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:#D6E2F8;}
.icon-badge{
  width:48px;height:48px;flex:0 0 48px;
  border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.icon-badge svg{width:24px;height:24px;}
.icon-badge.teal{background:rgba(20,196,168,.12);color:#0E9C86;}
.icon-badge.orange{background:rgba(255,138,43,.14);color:#D96A08;}
.narrow-card h3{margin:0;font-size:18px;}
.narrow-card p{margin:0;font-size:15px;line-height:1.8;color:var(--c-ink2);}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;}
.split.reverse{grid-template-columns:7fr 5fr;}
.figure{
  border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-s);background:#fff;border:1px solid var(--c-line);
}
.figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;}
.split h2{margin-bottom:18px;}
.split h3{margin-top:28px;}
.check-list li{
  position:relative;padding-left:24px;margin-bottom:12px;
  font-size:15px;color:var(--c-ink2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;background:var(--c-primary);
}
.check-list li strong{color:var(--c-ink);}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  position:relative;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{box-shadow:var(--shadow-s);}
.faq-item.is-open{border-color:var(--c-primary);}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;border:0;background:none;cursor:pointer;
  padding:20px 24px;
  font-size:18px;font-weight:600;color:var(--c-ink);text-align:left;line-height:1.5;
}
.faq-icon{
  width:24px;height:24px;flex:0 0 24px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease;
}
.faq-icon svg{width:14px;height:14px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-inner{padding:0 24px 22px;font-size:16px;line-height:1.9;color:var(--c-ink2);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary-soft);
  border:1px solid #D3E1F9;
  border-radius:18px;
  padding:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
}
.cta-band h2{margin-bottom:14px;font-size:28px;}
.cta-band p{margin:0;font-size:16px;color:var(--c-ink2);}
.cta-points{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;}
.form-card{
  background:#fff;border:1px solid var(--c-line);border-radius:16px;
  padding:26px;box-shadow:var(--shadow-s);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;height:46px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 14px;
  font-size:15px;color:var(--c-ink);background:#fff;
  margin:0;box-shadow:none;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,99,232,.12);
}
.form-note{font-size:13px;color:var(--c-ink3);margin-top:12px;}

/* ---------- 相关分类胶囊 ---------- */
.related-cats{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.related-cats a{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:999px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink2);font-size:15px;font-weight:600;
  transition:.25s ease;
}
.related-cats a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-2px);}
.related-cats a.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:var(--c-bg);
  border-top:3px solid var(--c-primary);
  padding:64px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--c-line);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-ink2);margin:0 0 20px;max-width:320px;}
.footer-social{display:flex;gap:10px;margin:0;}
.footer-social a{
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink2);
  transition:.25s ease;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.footer-social svg{width:20px;height:20px;}
.footer-col h4{font-size:16px;margin-bottom:18px;}
.footer-col ul li{margin-bottom:10px;line-height:1.6;}
.footer-col ul li a{font-size:14px;color:var(--c-ink2);}
.footer-col ul li a:hover{color:var(--c-primary);}
.footer-contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--c-ink2);margin-bottom:10px;line-height:1.7;
}
.footer-contact svg{width:18px;height:18px;flex:0 0 18px;margin-top:4px;color:var(--c-primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink3);
}
.footer-bottom a{color:var(--c-ink3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  h1{font-size:32px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .nav-main{
    position:fixed;left:0;right:0;top:var(--header-h);bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:16px 24px 96px;margin:0;overflow-y:auto;
    display:none;border-top:1px solid var(--c-line);
  }
  .nav-main.is-open{display:flex;}
  .nav-link{height:auto;padding:16px 0;font-size:18px;border-radius:0;border-bottom:1px solid var(--c-line);}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--c-primary);}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-link-cta{
    display:inline-flex;justify-content:center;
    margin-top:24px;background:var(--c-primary);color:#fff;
    border-radius:var(--r-btn);border-bottom:0;font-weight:600;height:48px;
  }
  .nav-link-cta:hover{background:var(--c-primary-dark);color:#fff;}
  .split,.split.reverse{grid-template-columns:1fr;gap:32px;}
  .narrow-grid{grid-template-columns:1fr;gap:18px;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--header-h:60px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .page-hero{padding:52px 0 44px;}
  .page-hero .lede{font-size:16px;}
  .subnav{top:var(--header-h);}
  .compare-table thead{display:none;}
  .compare-table tbody tr{display:block;padding:14px 0;border-bottom:1px solid var(--c-line);}
  .compare-table tbody tr:last-child{border-bottom:none;}
  .compare-table tbody td{
    display:flex;gap:12px;border-bottom:0;padding:6px 18px;font-size:14px;
  }
  .compare-table tbody td::before{
    content:attr(data-label);
    flex:0 0 96px;color:var(--c-ink3);font-size:13px;font-weight:600;
  }
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-inner{padding:0 18px 20px;font-size:15px;}
  .cta-band{padding:26px 20px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .narrow-card{padding:20px;}
  .btn{width:100%;}
  .btn-inline{width:auto;}
  .hero-meta{gap:8px;}
  .tag{height:30px;font-size:13px;padding:0 12px;}
}