/* roulang page: index */
:root{
  --brand-700:#12459B;
  --brand-600:#1A63D8;
  --brand-500:#3382EA;
  --brand-100:#E7F0FE;
  --teal-600:#0E9E96;
  --teal-100:#E2F5F3;
  --cta-600:#F2671F;
  --cta-700:#D9550F;
  --ink-900:#0F1B2D;
  --ink-600:#4B5A70;
  --ink-400:#7C8AA0;
  --line:#E3E9F2;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --container:1200px;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --shadow-sm:0 1px 2px rgba(15,27,45,.06);
  --shadow-card:0 8px 24px -12px rgba(15,27,45,.18),0 2px 6px rgba(15,27,45,.05);
  --shadow-hover:0 16px 36px -16px rgba(26,99,216,.28);
}

/* ===== Reset / Base ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.ng-page{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;background:transparent}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}

.wrap{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.wrap{padding-left:32px;padding-right:32px}}
@media(min-width:1280px){.wrap{padding-left:40px;padding-right:40px}}

.mono-num{font-variant-numeric:tabular-nums}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.header-top{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.logo-mark{
  width:35px;height:35px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand-600) 0%,var(--brand-500) 60%,var(--teal-600) 140%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;box-shadow:0 6px 14px -8px rgba(26,99,216,.9);
}
.logo-mark svg{width:19px;height:19px}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;color:var(--ink-900)}

.search-box{position:relative;flex:0 1 300px;min-width:170px}
.search-box input{
  width:100%;height:38px;border-radius:999px;border:1px solid transparent;
  background:#F1F5FB;padding:0 42px 0 16px;font-size:14px;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:var(--ink-400)}
.search-box input:focus{outline:none;background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(51,130,234,.16)}
.search-box .search-btn{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--ink-400);transition:color .18s,background .18s;
}
.search-box .search-btn:hover{color:var(--brand-600);background:var(--brand-100)}
.search-box .search-btn svg{width:15px;height:15px}

.hot-words{display:flex;align-items:center;gap:12px;overflow-x:auto;flex:1 1 auto;min-width:0;scrollbar-width:none}
.hot-words::-webkit-scrollbar{display:none}
.hot-words a{
  font-size:12px;color:var(--ink-400);white-space:nowrap;display:inline-flex;align-items:center;gap:4px;
  transition:color .18s;
}
.hot-words a:hover{color:var(--brand-600)}
.hot-words a svg{width:11px;height:11px;stroke:var(--teal-600)}

.nav-toggle{
  display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--ink-600);flex:0 0 auto;
}
.nav-toggle svg{width:18px;height:18px}

.channel-bar{border-top:1px solid var(--line);background:rgba(255,255,255,.98)}
.channel-inner{display:flex;align-items:center;gap:30px;height:44px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;font-size:14px;color:var(--ink-600);padding:12px 0;white-space:nowrap;
  transition:color .18s ease;
}
.channel:hover{color:var(--brand-600)}
.channel.active{color:var(--brand-600);font-weight:600}
.channel.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--brand-600);
}

/* ===== 按钮 / 徽章 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--cta-600);color:#fff;box-shadow:0 12px 24px -14px rgba(242,103,31,.85)}
.btn-primary:hover{background:var(--cta-700);transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;font-weight:600;white-space:nowrap;
}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-teal{background:var(--teal-100);color:var(--teal-600)}
.badge-neutral{background:#EEF2F8;color:var(--ink-600)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:#fff;padding:44px 0 60px;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;right:-160px;top:-180px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(51,130,234,.30) 0%,rgba(51,130,234,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:-140px;bottom:-200px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,158,150,.16) 0%,rgba(14,158,150,0) 70%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;gap:36px}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:56px;min-height:520px}
}
.hero-title{
  font-size:26px;line-height:36px;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 14px;
}
@media(min-width:768px){.hero-title{font-size:30px;line-height:40px}}
.hero-sub{font-size:15.5px;color:var(--ink-600);max-width:540px;margin-bottom:26px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.trust-list{display:flex;flex-wrap:wrap;gap:10px 22px}
.trust-list li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-600)}
.trust-list strong{color:var(--ink-900);font-weight:700}
.trust-dot{width:7px;height:7px;border-radius:50%;background:var(--teal-600);flex:0 0 auto}

.hero-visual{position:relative}
.hero-visual>img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--shadow-card);border:1px solid var(--line);
}
.float-card{
  position:absolute;left:-8px;bottom:-20px;min-width:216px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-card);padding:14px 16px;
}
.float-card .float-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.float-card .float-time{font-size:12px;color:var(--ink-400)}
.float-title{font-size:15px;font-weight:600;margin:9px 0 8px}
.progress{height:6px;border-radius:999px;background:#EDF2FA;overflow:hidden}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-600),var(--teal-600))}

/* ===== 板块公共 ===== */
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:80px 0}}
.section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:680px;margin-bottom:28px}
.sec-title{font-size:20px;line-height:28px;font-weight:700;letter-spacing:-.01em;margin:12px 0 8px}
@media(min-width:768px){.sec-title{font-size:24px;line-height:30px}}
.sec-sub{font-size:15px;color:var(--ink-600);line-height:1.8}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;max-width:none}

/* ===== 三步 ===== */
.steps{display:grid;gap:24px}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr))}}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px 24px;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
@media(min-width:768px){
  .step:not(:last-child)::after{
    content:"";position:absolute;right:-13px;top:56px;width:26px;border-top:2px dashed var(--line);
  }
}
.step-num{font-size:40px;line-height:1;font-weight:700;color:var(--teal-600);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.step-title{font-size:17px;font-weight:600;line-height:24px;margin:14px 0 8px}
.step-desc{font-size:14px;color:var(--ink-600);line-height:1.8}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ===== 案例证明 ===== */
.proof-main{display:grid;gap:24px}
@media(min-width:1024px){.proof-main{grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start}}
.proof-cards{display:grid;gap:24px}
@media(min-width:640px){.proof-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
.proof-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--shadow-sm);
}
.proof-list-title{font-size:15px;font-weight:700;margin-bottom:6px}
.proof-list-sub{font-size:13px;color:var(--ink-400);margin-bottom:8px}
.proof-item{display:block;padding:14px 0;border-top:1px solid var(--line);transition:transform .18s ease}
.proof-item:first-of-type{border-top:0}
.proof-item:hover{transform:translateX(3px)}
.proof-item h4{font-size:14.5px;font-weight:600;line-height:1.6;margin-bottom:6px;transition:color .18s}
.proof-item:hover h4{color:var(--brand-600)}
.proof-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-400)}

/* ===== 卡片 ===== */
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--brand-100);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:12px;top:12px;z-index:2}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{
  font-size:17px;font-weight:600;line-height:24px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;color:var(--ink-600);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--ink-400);
}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600}
.card-foot .go svg{width:14px;height:14px;transition:transform .18s ease}
.card:hover .card-foot .go svg{transform:translateX(3px)}

.metric-list{display:flex;gap:22px;flex-wrap:wrap}
.metric-list li{display:flex;flex-direction:column;gap:2px}
.metric-list strong{font-size:16px;font-weight:700;color:var(--teal-600);font-variant-numeric:tabular-nums}
.metric-list span{font-size:12px;color:var(--ink-400)}

/* ===== 资讯网格 ===== */
.news-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fill,minmax(258px,1fr))}
.empty-state{
  grid-column:1/-1;min-height:96px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  background:var(--brand-100);border:1px dashed var(--line);border-radius:var(--r-card);padding:20px;text-align:center;
}
.empty-state svg{width:26px;height:26px;color:var(--brand-600)}
.empty-state p{font-size:14px;color:var(--ink-600)}

/* ===== FAQ ===== */
.faq-grid{display:grid;gap:28px}
@media(min-width:1024px){.faq-grid{grid-template-columns:7fr 5fr;gap:32px;align-items:start}}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{border-color:var(--brand-100)}
.faq-item.open{box-shadow:var(--shadow-card);border-color:var(--brand-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;font-size:16px;font-weight:600;text-align:left;color:var(--ink-900);line-height:1.6;
}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{
  padding:0 18px 18px 18px;font-size:14.5px;line-height:1.85;color:var(--ink-600);
  border-left:3px solid transparent;margin-left:18px;padding-left:14px;
}
.faq-item.open .faq-a-inner{border-left-color:var(--brand-600)}

.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-sm);
}
.contact-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.contact-card p{font-size:14px;color:var(--ink-600);line-height:1.8;margin-bottom:18px}
.contact-entry{
  display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-top:1px solid var(--line);
}
.contact-entry:first-of-type{border-top:0;padding-top:0}
.contact-ico{
  width:34px;height:34px;border-radius:10px;background:var(--teal-100);color:var(--teal-600);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.contact-ico svg{width:17px;height:17px}
.contact-entry h4{font-size:14.5px;font-weight:600;margin-bottom:2px}
.contact-entry span{font-size:13px;color:var(--ink-400)}

/* ===== CTA 带 ===== */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-img);
  box-shadow:var(--shadow-card);padding:28px;display:grid;gap:32px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(51,130,234,.22) 0%,rgba(51,130,234,0) 70%);pointer-events:none;
}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr 1fr;padding:40px;gap:48px}}
.cta-band h2{font-size:22px;line-height:30px;font-weight:700;margin-bottom:10px;position:relative}
.cta-band .cta-lead{font-size:15px;color:var(--ink-600);margin-bottom:20px;position:relative}
.check-list{display:flex;flex-direction:column;gap:12px;position:relative}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-600);line-height:1.7}
.check-list svg{width:18px;height:18px;color:var(--teal-600);flex:0 0 auto;margin-top:3px}

.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--shadow-sm);position:relative;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-600);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;
  background:#fff;font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:86px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(51,130,234,.16);
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237C8AA0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px;}
.form-tip{font-size:12.5px;color:var(--ink-400);line-height:1.7;margin-top:12px}
.form-msg{display:none;font-size:13.5px;color:var(--teal-600);margin-top:12px;font-weight:600}
.form-msg.show{display:block}

/* ===== 页脚 ===== */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:24px}
.footer-grid{display:grid;gap:28px;padding:48px 0 34px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.5fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-mark{width:32px;height:32px;border-radius:10px}
.footer-desc{font-size:14px;color:var(--ink-600);line-height:1.85;max-width:340px}
.footer-title{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--ink-900)}
.footer-link{display:block;font-size:14px;color:var(--ink-600);padding:5px 0;transition:color .18s ease}
.footer-link:hover{color:var(--brand-600)}
.footer-info{font-size:13.5px;color:var(--ink-600);line-height:1.9}
.footer-info strong{color:var(--ink-900);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);padding:16px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-400);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-600);
  padding:7px 14px;border:1px solid var(--line);border-radius:999px;transition:.18s ease;
}
.to-top:hover{color:var(--brand-600);border-color:var(--brand-500);background:var(--brand-100)}
.to-top svg{width:14px;height:14px}

/* ===== 响应式补充 ===== */
@media(max-width:1023px){
  .hero{padding:36px 0 48px}
  .float-card{left:auto;right:12px;bottom:-18px}
}
@media(max-width:899px){
  .header-top{height:56px;gap:12px}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .channel-bar{display:none}
  .channel-bar.open{
    display:block;position:absolute;left:0;right:0;top:100%;
    background:#fff;border-top:1px solid var(--line);box-shadow:var(--shadow-card);
    padding:6px 0 10px;max-height:70vh;overflow-y:auto;
  }
  .channel-bar.open .channel-inner{flex-direction:column;align-items:stretch;gap:0;height:auto;overflow:visible}
  .channel-bar.open .channel{display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px}
  .channel-bar.open .channel.active::after{display:none}
  .channel-bar.open .channel.active{background:var(--brand-100);box-shadow:inset 3px 0 0 var(--brand-600)}
  .badge{height:22px;font-size:11.5px}
  .card,.step,.proof-list,.contact-card,.form-card,.cta-band{box-shadow:var(--shadow-sm)}
}
@media(max-width:520px){
  .logo-text{font-size:15px}
  .hero-title{font-size:24px;line-height:33px}
  .sec-title{font-size:20px;line-height:27px}
  .trust-list{gap:8px 16px}
  .btn{width:100%}
  .btn.btn-sm{width:auto}
  .hero-actions{flex-direction:column;align-items:stretch}
  .metric-list{gap:16px}
  .cta-band{padding:22px}
}
@media(max-width:400px){
  .logo-text{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand-700:#12459B;
  --brand-600:#1A63D8;
  --brand-500:#3382EA;
  --brand-100:#E7F0FE;
  --teal-600:#0E9E96;
  --teal-100:#E2F5F3;
  --cta-600:#F2671F;
  --cta-700:#D9550F;
  --ink-900:#0F1B2D;
  --ink-600:#4B5A70;
  --ink-400:#7C8AA0;
  --line:#E3E9F2;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-sm:0 1px 2px rgba(15,27,45,.06);
  --shadow-card:0 8px 24px -12px rgba(15,27,45,.18), 0 2px 6px rgba(15,27,45,.05);
  --shadow-hover:0 16px 36px -16px rgba(26,99,216,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em}
p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.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}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
@media (min-width:1280px){.wrap{padding:0 40px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease,background-color .2s ease}
.site-header.is-stuck{background:rgba(255,255,255,.95);backdrop-filter:blur(8px);box-shadow:var(--shadow-sm)}
.header-top{display:flex;align-items:center;gap:18px;height:64px;transition:height .2s ease}
.site-header.is-stuck .header-top{height:56px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand-600),var(--brand-500));color:#fff;box-shadow:var(--shadow-sm);flex:0 0 auto}
.logo-mark svg{width:20px;height:20px}
.logo-text{font-size:17px;font-weight:700;color:var(--ink-900);white-space:nowrap}
.search-box{position:relative;flex:0 1 300px;min-width:190px;display:flex;align-items:center;gap:4px;height:40px;padding:0 5px 0 14px;background:#F1F5FB;border:1px solid transparent;border-radius:999px;transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease}
.search-box:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100)}
.search-box input{flex:1;min-width:0;height:100%;border:0;background:transparent;color:var(--ink-900);font-size:14px;outline:none}
.search-box input::placeholder{color:var(--ink-400)}
.search-btn{width:32px;height:32px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;color:var(--brand-600);transition:background-color .18s ease}
.search-btn svg{width:16px;height:16px}
.search-btn:hover{background:var(--brand-100)}
.hot-words{display:flex;align-items:center;gap:14px;flex:1 1 auto;justify-content:flex-end;overflow-x:auto;scrollbar-width:none}
.hot-words::-webkit-scrollbar{display:none}
.hot-words a{display:inline-flex;align-items:center;gap:4px;font-size:13px;color:var(--ink-600);white-space:nowrap;transition:color .18s ease}
.hot-words a svg{width:14px;height:14px;color:var(--teal-600)}
.hot-words a:hover{color:var(--brand-600)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-600);align-items:center;justify-content:center;transition:background-color .18s ease,color .18s ease}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle:hover{background:var(--brand-100);color:var(--brand-700)}
.channel-bar{display:none;border-top:1px solid var(--line);background:#fff}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:44px}
.channel-nav{display:flex;align-items:center;gap:26px}
.channel-link{position:relative;display:inline-flex;align-items:center;height:44px;font-size:14px;color:var(--ink-600);transition:color .18s ease}
.channel-link:hover{color:var(--brand-600)}
.channel-link.is-active{color:var(--brand-700);font-weight:700}
.channel-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--brand-600)}
.channel-trend{font-size:12px;color:var(--ink-400);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (min-width:1024px){
  .channel-bar{display:block}
}
@media (max-width:1023.98px){
  .nav-toggle{display:inline-flex}
  .search-box{display:none}
  .hot-words{display:none}
  .site-header.drawer-open .channel-bar{display:block;position:absolute;left:0;right:0;top:100%;max-height:70vh;overflow:auto;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-card)}
  .site-header.drawer-open .channel-inner{display:block;height:auto;padding:6px 0 14px}
  .site-header.drawer-open .channel-nav{display:block}
  .site-header.drawer-open .channel-link{display:flex;height:48px;padding-left:12px;border-left:3px solid transparent}
  .site-header.drawer-open .channel-link.is-active{background:var(--brand-100);border-left-color:var(--brand-600)}
  .site-header.drawer-open .channel-link.is-active::after{display:none}
  .site-header.drawer-open .channel-trend{display:none}
}

/* ---------- article hero ---------- */
.article-hero{
  background-image:linear-gradient(180deg,rgba(255,255,255,.94),rgba(246,248,252,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:16px 0;font-size:13px;color:var(--ink-400)}
.breadcrumb a{color:var(--ink-400);transition:color .18s ease}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C3CDDC}
.breadcrumb .current{color:var(--ink-600);max-width:62%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding:6px 0 30px;max-width:880px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-teal{background:var(--teal-100);color:var(--teal-600)}
.badge-muted{background:#EFF3F9;color:var(--ink-600)}
.article-title{font-size:30px;line-height:1.35;margin:14px 0 16px;letter-spacing:-0.01em}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400)}
.dot{width:4px;height:4px;border-radius:50%;background:#C3CDDC;display:inline-block}
@media (max-width:639.98px){
  .article-title{font-size:26px}
  .article-head{padding-bottom:22px}
}

/* ---------- layout ---------- */
.article-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:36px 0 8px}
@media (min-width:1024px){
  .article-grid{grid-template-columns:minmax(0,760px) 260px;gap:56px;justify-content:center;padding:48px 0 8px}
}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 20px;box-shadow:var(--shadow-card)}
@media (min-width:768px){.article-card{padding:40px 44px}}

/* ---------- content ---------- */
.article-content{font-size:16px;line-height:1.85;color:var(--ink-900);word-break:break-word}
.article-content p{margin:0 0 1.2em}
.article-content h2{position:relative;font-size:24px;line-height:1.4;margin:40px 0 16px;padding-left:14px;scroll-margin-top:120px}
.article-content h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;background:var(--brand-600)}
.article-content h3{font-size:19px;line-height:1.5;margin:28px 0 12px;color:var(--ink-900)}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.3em}
.article-content li{margin:6px 0}
.article-content a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--brand-700)}
.article-content blockquote{margin:20px 0;padding:14px 18px;border-left:3px solid var(--brand-600);background:var(--brand-100);border-radius:0 10px 10px 0;color:var(--ink-600)}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{margin:8px auto;border-radius:12px;box-shadow:var(--shadow-sm)}
.article-content figure{margin:22px 0}
.article-content figcaption{margin-top:8px;font-size:13px;color:var(--ink-400);text-align:center}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-content th{background:#F1F5FB;font-weight:600}
.article-content tbody tr:nth-child(even){background:#FAFBFE}
.article-content code{padding:1px 6px;border-radius:6px;background:#F1F5FB;font-size:14px}
.article-content hr{margin:28px 0;border:0;border-top:1px solid var(--line)}
.article-content>*:first-child{margin-top:0}

.empty-state{text-align:center;padding:52px 20px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card)}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{max-width:520px;margin:0 auto 20px;font-size:14px;color:var(--ink-600)}

/* ---------- sidebar ---------- */
.article-side{display:none}
@media (min-width:1024px){.article-side{display:block}}
.side-sticky{position:sticky;top:118px;display:grid;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-sm)}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:12px}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand-600)}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:8px;max-height:280px;overflow:auto}
.toc-list a{display:block;padding-left:10px;border-left:2px solid var(--line);font-size:13.5px;color:var(--ink-600);line-height:1.6;transition:color .18s ease,border-color .18s ease}
.toc-list a:hover{color:var(--brand-600);border-left-color:var(--brand-600)}
.side-note{font-size:13.5px;color:var(--ink-600);line-height:1.8}
.side-note strong{color:var(--ink-900)}
.side-links{display:grid;gap:8px;margin-top:12px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13.5px;color:var(--ink-600);padding:9px 12px;border-radius:10px;background:#F7F9FD;transition:background-color .18s ease,color .18s ease}
.side-links a:hover{background:var(--brand-100);color:var(--brand-700)}

/* ---------- cards ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:44px 0 18px}
.section-title{font-size:20px}
.section-more{font-size:13.5px;color:var(--brand-600)}
.section-more:hover{color:var(--brand-700)}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
.card-cover{position:relative;aspect-ratio:16/9;background:var(--brand-100);overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover}
.card-badge{position:absolute;left:10px;top:10px}
.card-body{padding:16px 18px 18px}
.card-title{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:13px;color:var(--ink-400)}
.card-foot svg{width:14px;height:14px;color:var(--brand-500)}

/* ---------- prev next ---------- */
.prev-next{display:grid;gap:16px;margin-top:32px}
@media (min-width:640px){.prev-next{grid-template-columns:1fr 1fr}}
.pn-item{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:16px 18px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.pn-item:hover{border-color:var(--brand-500);box-shadow:var(--shadow-card);transform:translateY(-2px)}
.pn-label{font-size:12px;color:var(--ink-400)}
.pn-title{margin-top:6px;font-size:15px;font-weight:600;line-height:1.6}

/* ---------- cta ---------- */
.cta-band{margin:48px 0 64px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;box-shadow:var(--shadow-card);display:grid;gap:22px;align-items:center}
@media (min-width:1024px){.cta-band{grid-template-columns:1.15fr .85fr;padding:36px 40px}}
.cta-band h2{font-size:22px;line-height:1.4}
.cta-band p{margin-top:10px;font-size:14px;color:var(--ink-600)}
.check-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-600)}
.check-list svg{width:18px;height:18px;color:var(--teal-600);flex:0 0 auto;margin-top:3px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;transition:background-color .18s ease,transform .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--cta-600);color:#fff;box-shadow:0 8px 18px -10px rgba(242,103,31,.85)}
.btn-primary:hover{background:var(--cta-700);transform:translateY(-1px)}
.btn-outline{border:1px solid var(--line);background:#fff;color:var(--ink-900)}
.btn-outline:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700)}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:26px;padding:42px 0 28px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-desc{max-width:340px;font-size:13.5px;line-height:1.8;color:var(--ink-600)}
.footer-title{font-size:15px;margin-bottom:14px}
.footer-link{display:block;padding:6px 0;font-size:14px;color:var(--ink-600);transition:color .18s ease}
.footer-link:hover{color:var(--brand-600)}
.footer-info{font-size:13.5px;line-height:1.9;color:var(--ink-600)}
.footer-info strong{color:var(--ink-900);font-weight:600}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding:18px 0 26px;font-size:13px;color:var(--ink-400)}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--ink-600);transition:color .18s ease}
.to-top:hover{color:var(--brand-600)}
.to-top svg{width:15px;height:15px}
@media (max-width:639.98px){
  body{font-size:14px}
  .article-content{font-size:15px}
  .article-content h2{font-size:20px}
  .article-content h3{font-size:17px}
  .section-title{font-size:18px}
  .cta-band h2{font-size:19px}
  .shadow-reduce,.article-card,.side-card{box-shadow:var(--shadow-sm)}
}

/* roulang page: category1 */
:root{
    --brand-700:#12459B; --brand-600:#1A63D8; --brand-500:#3382EA; --brand-100:#E7F0FE;
    --teal-600:#0E9E96; --teal-100:#E2F5F3;
    --cta-600:#F2671F; --cta-700:#D9550F;
    --ink-900:#0F1B2D; --ink-600:#4B5A70; --ink-400:#7C8AA0;
    --line:#E3E9F2; --bg:#F6F8FC; --card:#FFFFFF;
    --container:1200px;
    --shadow-sm:0 1px 2px rgba(15,27,45,.06);
    --shadow-card:0 8px 24px -12px rgba(15,27,45,.18), 0 2px 6px rgba(15,27,45,.05);
    --shadow-hover:0 16px 36px -16px rgba(26,99,216,.28);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  .site-body{
    margin:0;background:var(--bg);color:var(--ink-900);
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
    font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
  }
  .site-body img{max-width:100%;display:block;border:0}
  .site-body a{color:inherit;text-decoration:none}
  .site-body button,.site-body input,.site-body select,.site-body textarea{font:inherit;color:inherit}
  .site-body ul{list-style:none;margin:0;padding:0}
  .wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
  @media(min-width:768px){.wrap{padding:0 32px}}
  @media(min-width:1280px){.wrap{padding:0 40px}}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}

  /* ---------- 顶部导航 ---------- */
  .site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
    -webkit-backdrop-filter:saturate(160%) blur(8px);backdrop-filter:saturate(160%) blur(8px);
    border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
  .site-header.scrolled{box-shadow:var(--shadow-sm)}
  .header-top{display:flex;align-items:center;gap:14px;min-height:56px;padding-top:8px;padding-bottom:8px}
  @media(min-width:1024px){.header-top{min-height:64px;gap:18px}}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--brand-600),var(--brand-500));color:#fff;flex:0 0 auto}
  .logo-mark svg{width:20px;height:20px}
  .logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink-900);white-space:nowrap}
  @media(max-width:640px){.logo-text{display:none}}
  .search-box{display:flex;align-items:center;gap:6px;background:#F1F5FB;border:1px solid transparent;
    border-radius:999px;padding:0 6px 0 14px;height:38px;flex:1 1 auto;min-width:0;max-width:320px;
    transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease}
  .search-box:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(51,130,234,.16)}
  .search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;min-width:0}
  .search-btn{border:0;background:transparent;color:var(--ink-400);cursor:pointer;width:30px;height:30px;
    display:grid;place-items:center;border-radius:50%;flex:0 0 auto;transition:color .18s,background-color .18s}
  .search-btn:hover{color:var(--brand-600);background:var(--brand-100)}
  .search-btn svg{width:17px;height:17px}
  .hot-words{display:flex;align-items:center;gap:14px;overflow-x:auto;flex:1 1 auto;scrollbar-width:none}
  .hot-words::-webkit-scrollbar{display:none}
  .hot-words a{display:inline-flex;align-items:center;gap:4px;font-size:13px;color:var(--ink-600);white-space:nowrap;transition:color .18s}
  .hot-words a:hover{color:var(--brand-600)}
  .hot-words svg{width:14px;height:14px;color:var(--teal-600)}
  @media(max-width:1023px){.hot-words{display:none}}
  .nav-toggle{display:none;width:38px;height:38px;border:1px solid var(--line);background:#fff;border-radius:10px;
    align-items:center;justify-content:center;cursor:pointer;color:var(--ink-900);flex:0 0 auto}
  .nav-toggle svg{width:20px;height:20px}
  @media(max-width:1023px){.nav-toggle{display:inline-flex}}
  .channel-bar{border-top:1px solid var(--line);background:#fff}
  .channel-inner{display:flex;align-items:center;gap:28px;height:44px;overflow-x:auto;scrollbar-width:none}
  .channel-inner::-webkit-scrollbar{display:none}
  .channel-link{position:relative;font-size:14px;color:var(--ink-600);height:44px;display:inline-flex;
    align-items:center;white-space:nowrap;transition:color .18s}
  .channel-link:hover{color:var(--brand-600)}
  .channel-link.active{color:var(--brand-700);font-weight:700}
  .channel-link.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--brand-600);border-radius:2px}
  @media(max-width:1023px){
    .channel-bar{position:absolute;top:100%;left:0;right:0;display:none;box-shadow:var(--shadow-card)}
    .channel-bar.open{display:block}
    .channel-inner{flex-direction:column;align-items:stretch;height:auto;gap:0;padding:6px 0}
    .channel-link{height:48px;padding:0 20px;border-left:3px solid transparent;font-size:15px}
    .channel-link.active{border-left-color:var(--brand-600);background:var(--brand-100)}
    .channel-link.active::after{display:none}
  }

  /* ---------- Hero ---------- */
  .cat-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#F1F6FE 100%)}
  .cat-hero::before{content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;
    background:radial-gradient(circle,rgba(51,130,234,.55) 0%,rgba(51,130,234,0) 65%);opacity:.3;pointer-events:none}
  .cat-hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:26px;padding-top:34px}
  @media(min-width:1024px){.cat-hero-inner{grid-template-columns:1.32fr 1fr;gap:48px;align-items:center;padding-top:52px}}
  .hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
    color:var(--brand-700);background:var(--brand-100);border-radius:999px;padding:5px 14px;margin-bottom:14px}
  .hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--teal-600);display:inline-block}
  .cat-title{font-size:26px;line-height:1.35;font-weight:700;letter-spacing:-.01em;margin:0 0 14px}
  @media(min-width:1024px){.cat-title{font-size:30px;line-height:40px}}
  .hero-sub{margin:0 0 22px;max-width:560px;color:var(--ink-600);font-size:15px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
  .cat-hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;
    border:1px solid var(--line);box-shadow:var(--shadow-card)}
  .stat-row{display:grid;grid-template-columns:1fr;gap:12px;padding-top:26px;padding-bottom:36px}
  @media(min-width:640px){.stat-row{grid-template-columns:repeat(3,1fr)}}
  .stat-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;
    display:flex;align-items:center;gap:12px;box-shadow:var(--shadow-sm)}
  .stat-num{font-size:24px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2}
  .stat-label{font-size:13px;color:var(--ink-400);line-height:1.5}

  /* ---------- 通用板块 ---------- */
  .section{padding:56px 0}
  @media(min-width:1024px){.section{padding:80px 0}}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{max-width:760px;margin-bottom:28px}
  .eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
    color:var(--teal-600);background:var(--teal-100);border-radius:999px;padding:4px 12px;margin-bottom:12px}
  .section-title{font-size:20px;line-height:1.35;font-weight:700;margin:0 0 10px}
  @media(min-width:1024px){.section-title{font-size:24px;line-height:30px}}
  .section-desc{margin:0;color:var(--ink-600);font-size:15px}

  /* ---------- 卡片 ---------- */
  .card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
    box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
  .card-cover{position:relative;aspect-ratio:16/9;background:var(--brand-100);overflow:hidden}
  .card-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .card-cover .badge{position:absolute;left:12px;top:12px}
  .card-body{padding:22px}
  .card-title{font-size:17px;line-height:1.5;font-weight:600;margin:0 0 10px}
  .card-text{margin:0;color:var(--ink-600);font-size:14px;line-height:1.8}
  .badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1}
  .badge-brand{background:var(--brand-100);color:var(--brand-700)}
  .badge-teal{background:var(--teal-100);color:var(--teal-600)}
  .badge-neutral{background:#EEF2F8;color:var(--ink-600)}

  /* ---------- 2+3 错位 ---------- */
  .spotlight{display:grid;grid-template-columns:1fr;gap:22px}
  @media(min-width:1024px){.spotlight{grid-template-columns:1.4fr 1fr;gap:26px;align-items:start}}
  .compact-list{display:flex;flex-direction:column;gap:16px}
  .compact-item{background:#fff;border:1px solid var(--line);border-left:3px solid var(--teal-600);
    border-radius:12px;padding:18px 20px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
  .compact-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
  .compact-title{font-size:16px;font-weight:600;margin:0 0 6px;display:flex;align-items:center;gap:8px}
  .compact-text{margin:0;font-size:14px;color:var(--ink-600);line-height:1.75}
  .check-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
  .check-item{display:flex;gap:10px;font-size:14px;color:var(--ink-600)}
  .check-item svg{width:17px;height:17px;color:var(--teal-600);flex:0 0 auto;margin-top:4px}

  /* ---------- 时间线 ---------- */
  .timeline-wrap{border-left:2px dashed var(--line);margin-left:8px;padding-left:24px}
  .tl-item{position:relative;padding-bottom:24px}
  .tl-item:last-child{padding-bottom:0}
  .tl-item::before{content:"";position:absolute;left:-31px;top:7px;width:12px;height:12px;border-radius:50%;
    background:#fff;border:2px solid var(--brand-500)}
  .tl-date{font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums}
  .tl-title{font-size:17px;font-weight:600;margin:4px 0 6px}
  .tl-text{margin:0;font-size:14px;color:var(--ink-600);line-height:1.8}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}

  /* ---------- 步骤 ---------- */
  .steps{display:grid;grid-template-columns:1fr;gap:18px}
  @media(min-width:640px){.steps{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:22px}}
  .step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 22px;
    box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
  .step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
  .step-num{font-size:40px;line-height:1;font-weight:700;color:var(--teal-600);
    font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-bottom:12px}
  .step-title{font-size:17px;font-weight:600;margin:0 0 8px}
  .step-text{margin:0;font-size:14px;color:var(--ink-600);line-height:1.8}

  /* ---------- FAQ ---------- */
  .faq{display:grid;grid-template-columns:1fr;gap:24px}
  @media(min-width:1024px){.faq{grid-template-columns:1.45fr 1fr;gap:32px;align-items:start}}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;
    overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
  .faq-item.open{border-color:var(--brand-100);box-shadow:var(--shadow-card)}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 20px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;
    cursor:pointer;line-height:1.6}
  .faq-q:hover{color:var(--brand-700)}
  .faq-icon{flex:0 0 auto;width:22px;height:22px;display:grid;place-items:center;color:var(--brand-600);
    font-size:18px;font-weight:700;line-height:1}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
  .faq-item.open .faq-a{max-height:360px}
  .faq-a-inner{padding:0 20px 18px;font-size:14px;color:var(--ink-600);line-height:1.85}
  .faq-item.open .faq-a-inner{border-left:3px solid var(--brand-600);margin-left:20px;padding-left:17px;padding-right:20px}
  .side-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:var(--shadow-card)}
  .side-card h3{font-size:16px;font-weight:700;margin:0 0 10px}
  .side-card p{margin:0 0 16px;font-size:14px;color:var(--ink-600)}
  .side-link{display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px 14px;border-radius:10px;background:var(--brand-100);color:var(--brand-700);
    font-size:14px;font-weight:600;margin-bottom:10px;transition:background-color .18s ease}
  .side-link:last-child{margin-bottom:0}
  .side-link:hover{background:#D8E7FD}
  .side-link svg{width:16px;height:16px}

  /* ---------- 交叉引导 ---------- */
  .cross-grid{display:grid;grid-template-columns:1fr;gap:20px}
  @media(min-width:768px){.cross-grid{grid-template-columns:repeat(2,1fr)}}
  .cross-card{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
    border-radius:14px;padding:22px;box-shadow:var(--shadow-sm);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
  .cross-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
  .cross-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-100);color:var(--brand-700);
    display:grid;place-items:center;flex:0 0 auto}
  .cross-icon svg{width:22px;height:22px}
  .cross-title{font-size:17px;font-weight:600;margin:0 0 6px}
  .cross-text{margin:0 0 10px;font-size:14px;color:var(--ink-600);line-height:1.75}
  .cross-more{font-size:13px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}
  .cross-card:hover .cross-more{text-decoration:underline}

  /* ---------- CTA 带 ---------- */
  .cta-wrap{padding:56px 0}
  @media(min-width:1024px){.cta-wrap{padding:80px 0}}
  .cta-card{background:linear-gradient(160deg,#FFFFFF 0%,#EDF4FE 100%);border:1px solid var(--line);
    border-radius:18px;box-shadow:var(--shadow-card);padding:28px;display:grid;grid-template-columns:1fr;gap:28px}
  @media(min-width:1024px){.cta-card{grid-template-columns:1fr 1fr;gap:40px;padding:38px}}
  .cta-title{font-size:20px;font-weight:700;margin:0 0 12px;line-height:1.4}
  @media(min-width:1024px){.cta-title{font-size:24px}}
  .cta-sub{margin:0 0 18px;color:var(--ink-600);font-size:15px}
  .cta-points{display:flex;flex-direction:column;gap:10px}
  .cta-points li{display:flex;gap:10px;font-size:14px;color:var(--ink-600)}
  .cta-points svg{width:18px;height:18px;color:var(--teal-600);flex:0 0 auto;margin-top:3px}
  .cta-form{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;
    display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow-sm)}
  .field{display:flex;flex-direction:column;gap:7px}
  .field label{font-size:13px;font-weight:600;color:var(--ink-600)}
  .field input,.field select,.field textarea{height:44px;border:1px solid var(--line);border-radius:10px;
    padding:0 14px;background:#FBFCFE;outline:none;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease}
  .field textarea{height:84px;padding:11px 14px;resize:vertical;line-height:1.7}
  .field input:focus,.field select:focus,.field textarea:focus{background:#fff;border-color:var(--brand-500);
    box-shadow:0 0 0 3px rgba(51,130,234,.16)}
  .form-note{margin:0;font-size:12px;color:var(--ink-400)}
  .form-tip{margin:0;font-size:13px;color:var(--cta-700);min-height:18px}

  /* ---------- 按钮 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
    border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;
    transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease}
  .btn-cta{background:var(--cta-600);color:#fff;box-shadow:0 10px 22px -12px rgba(242,103,31,.85)}
  .btn-cta:hover{background:var(--cta-700);transform:translateY(-1px)}
  .btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
  .btn-ghost:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700)}
  .btn-block{width:100%}
  .text-link{color:var(--ink-600);font-weight:600;border-bottom:1px solid var(--line);transition:color .18s,border-color .18s}
  .text-link:hover{color:var(--brand-600);border-color:var(--brand-500)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink-900);color:#C4D0E2;padding-top:52px;margin-top:8px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding-bottom:34px}
  @media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff}
  .footer-desc{margin:0;font-size:14px;line-height:1.85;color:#9FB0C8}
  .footer-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 14px}
  .footer-link{display:block;font-size:14px;color:#9FB0C8;padding:5px 0;transition:color .18s}
  .footer-link:hover{color:#fff}
  .footer-info{margin:0;font-size:14px;line-height:1.95;color:#9FB0C8}
  .footer-info strong{color:#DCE6F5;font-weight:600}
  .footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    border-top:1px solid rgba(255,255,255,.12);padding-top:18px;padding-bottom:22px;font-size:13px;color:#8B9CB4}
  .to-top{display:inline-flex;align-items:center;gap:6px;color:#C4D0E2;font-size:13px;
    border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:6px 14px;transition:background-color .18s,color .18s}
  .to-top:hover{background:rgba(255,255,255,.1);color:#fff}
  .to-top svg{width:14px;height:14px}
  @media(max-width:520px){.stat-num{font-size:22px}.card-body{padding:18px}}

/* roulang page: category2 */
:root{
    --brand-700:#12459B;
    --brand-600:#1A63D8;
    --brand-500:#3382EA;
    --brand-100:#E7F0FE;
    --teal-600:#0E9E96;
    --teal-100:#E2F5F3;
    --cta-600:#F2671F;
    --cta-700:#D9550F;
    --ink-900:#0F1B2D;
    --ink-600:#4B5A70;
    --ink-400:#7C8AA0;
    --line:#E3E9F2;
    --bg:#F6F8FC;
    --card:#FFFFFF;
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-sm:0 1px 2px rgba(15,27,45,.06);
    --shadow-card:0 8px 24px -12px rgba(15,27,45,.18), 0 2px 6px rgba(15,27,45,.05);
    --shadow-hover:0 16px 36px -16px rgba(26,99,216,.28);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    font-size:15px;
    line-height:1.75;
    color:var(--ink-900);
    background:var(--bg);
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  a:hover{color:var(--brand-600)}
  button,input,select,textarea{font:inherit;color:inherit}
  button{border:none;background:none;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
  .wrap{max-width:var(--container);margin:0 auto;padding:0 20px}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-stuck{box-shadow:var(--shadow-sm)}
  .header-top{display:flex;align-items:center;gap:18px;height:64px}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    width:34px;height:34px;border-radius:10px;flex:0 0 auto;
    display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--brand-600),var(--teal-600));
    color:#fff;
  }
  .logo-mark svg{width:20px;height:20px}
  .logo-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink-900);white-space:nowrap}
  .search-box{
    position:relative;display:flex;align-items:center;
    width:280px;flex:0 1 280px;height:38px;
    background:#F1F5FB;border:1px solid transparent;border-radius:999px;
    padding:0 6px 0 14px;transition:background .18s ease,border-color .18s ease;
  }
  .search-box:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100)}
  .search-box input{
    flex:1;min-width:0;height:100%;border:none;background:transparent;outline:none;font-size:14px;
  }
  .search-box input::placeholder{color:var(--ink-400)}
  .search-btn{
    width:30px;height:30px;border-radius:50%;color:var(--ink-400);
    display:inline-flex;align-items:center;justify-content:center;transition:color .18s ease,background .18s ease;
  }
  .search-btn svg{width:17px;height:17px}
  .search-btn:hover{color:var(--brand-600);background:#fff}
  .hot-words{display:flex;align-items:center;gap:14px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
  .hot-words::-webkit-scrollbar{display:none}
  .hot-words a{
    display:inline-flex;align-items:center;gap:4px;white-space:nowrap;
    font-size:13px;color:var(--ink-600);transition:color .18s ease;
  }
  .hot-words a svg{width:13px;height:13px;color:var(--teal-600)}
  .hot-words a:hover{color:var(--brand-600)}
  .nav-toggle{
    display:none;width:38px;height:38px;border-radius:10px;
    color:var(--ink-600);align-items:center;justify-content:center;
    border:1px solid var(--line);background:#fff;margin-left:auto;
  }
  .nav-toggle svg{width:20px;height:20px}

  .channel-bar{border-top:1px solid var(--line);background:rgba(255,255,255,.7)}
  .channel-inner{display:flex;align-items:center;gap:26px;height:44px;overflow-x:auto;scrollbar-width:none}
  .channel-inner::-webkit-scrollbar{display:none}
  .channel-link{
    position:relative;display:inline-flex;align-items:center;height:44px;
    font-size:14px;color:var(--ink-600);white-space:nowrap;transition:color .18s ease;
  }
  .channel-link:hover{color:var(--brand-600)}
  .channel-link.active{color:var(--brand-600);font-weight:600}
  .channel-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--brand-600);border-radius:2px;
  }

  /* ---------- breadcrumb ---------- */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--ink-400);padding:18px 0 0;
  }
  .breadcrumb a{color:var(--ink-400)}
  .breadcrumb a:hover{color:var(--brand-600)}
  .breadcrumb .current{color:var(--ink-600)}

  /* ---------- hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background:
      radial-gradient(520px 320px at 88% 0%, rgba(51,130,234,.20), transparent 70%),
      radial-gradient(420px 260px at 6% 100%, rgba(14,158,150,.14), transparent 72%),
      url("/assets/images/backpic/back-2.webp") no-repeat right -60px top -40px/560px auto,
      linear-gradient(180deg,#FFFFFF 0%, var(--brand-100) 100%);
  }
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;padding:26px 0 52px}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .badge-teal{background:var(--teal-100);color:var(--teal-600)}
  .badge-brand{background:var(--brand-100);color:var(--brand-700)}
  .badge-neutral{background:#EEF2F8;color:var(--ink-600)}
  .page-hero h1{
    margin-top:16px;font-size:30px;line-height:1.32;font-weight:700;letter-spacing:-.01em;
  }
  .hero-sub{margin-top:14px;font-size:16px;line-height:1.75;color:var(--ink-600);max-width:620px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease;
  }
  .btn-primary{background:var(--cta-600);color:#fff;box-shadow:0 10px 22px -14px rgba(242,103,31,.9)}
  .btn-primary:hover{background:var(--cta-700);color:#fff;transform:translateY(-1px)}
  .btn-ghost{background:transparent;color:var(--brand-700);border:1px solid var(--brand-500)}
  .btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
  .btn-plain{background:#fff;color:var(--ink-600);border:1px solid var(--line);height:42px;padding:0 18px;font-weight:500}
  .btn-plain:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100)}
  .hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px}
  .hero-stats li{display:flex;align-items:baseline;gap:8px;font-size:13px;color:var(--ink-400)}
  .hero-stats strong{font-size:22px;font-weight:700;color:var(--teal-600);letter-spacing:-.01em}
  .hero-side{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:14px;box-shadow:var(--shadow-card);
  }
  .hero-side img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;background:var(--brand-100)}
  .side-note{
    display:flex;align-items:flex-start;gap:10px;margin-top:14px;
    padding:12px 14px;border-radius:12px;background:var(--brand-100);
  }
  .side-note span.pt{font-size:12px;font-weight:700;color:var(--brand-700);letter-spacing:.04em;white-space:nowrap}
  .side-note p{font-size:13px;line-height:1.7;color:var(--ink-600)}

  /* ---------- section base ---------- */
  .section{padding:56px 0}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{max-width:780px}
  .eyebrow{
    display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
    color:var(--teal-600);text-transform:uppercase;
  }
  .section-head h2{margin-top:10px;font-size:24px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
  .section-sub{margin-top:12px;font-size:15px;color:var(--ink-600)}

  /* ---------- guide list ---------- */
  .guide-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:32px}
  .guide-item{
    display:flex;gap:14px;background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:18px 18px 16px;
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .guide-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
  .guide-num{
    flex:0 0 auto;font-size:22px;font-weight:700;color:var(--teal-600);
    line-height:1.2;letter-spacing:-.02em;min-width:38px;
  }
  .guide-body h3{font-size:16px;font-weight:600;line-height:1.5}
  .guide-body p{margin-top:6px;font-size:14px;color:var(--ink-600);line-height:1.7}
  .guide-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
  .tag{
    display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:999px;
    font-size:12px;line-height:1;
  }
  .tag-neutral{background:#EEF2F8;color:var(--ink-600)}
  .tag-teal{background:var(--teal-100);color:var(--teal-600)}
  .tag-brand{background:var(--brand-100);color:var(--brand-700)}

  /* ---------- steps ---------- */
  .step-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:34px}
  .step-card{
    position:relative;background:var(--card);border:1px solid var(--line);
    border-radius:var(--radius-card);padding:20px 18px;box-shadow:var(--shadow-sm);
    transition:transform .18s ease,box-shadow .18s ease;
  }
  .step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
  .step-card::before{
    content:"";position:absolute;top:38px;right:-20px;width:20px;height:1px;
    background:repeating-linear-gradient(90deg,var(--line) 0 6px,transparent 6px 12px);
  }
  .step-card:last-child::before{display:none}
  .step-num{font-size:34px;font-weight:700;color:var(--teal-600);letter-spacing:-.03em;line-height:1}
  .step-card h3{margin-top:12px;font-size:16px;font-weight:600}
  .step-card p{margin-top:8px;font-size:14px;color:var(--ink-600);line-height:1.72}

  /* ---------- scene ---------- */
  .scene-grid{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center}
  .scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-card);background:var(--brand-100)}
  .scene-list{margin-top:22px;display:grid;gap:12px}
  .scene-list li{
    display:flex;gap:12px;background:#fff;border:1px solid var(--line);
    border-radius:12px;padding:14px 16px;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .scene-list li:hover{border-color:var(--brand-100);box-shadow:var(--shadow-sm)}
  .scene-list .dot{
    flex:0 0 auto;width:22px;height:22px;border-radius:999px;margin-top:2px;
    background:var(--teal-100);color:var(--teal-600);
    display:inline-flex;align-items:center;justify-content:center;
  }
  .scene-list .dot svg{width:13px;height:13px}
  .scene-list h3{font-size:15px;font-weight:600}
  .scene-list p{margin-top:4px;font-size:14px;color:var(--ink-600);line-height:1.7}

  /* ---------- faq ---------- */
  .faq-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;margin-top:32px;align-items:start}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:12px;
    margin-bottom:10px;overflow:hidden;transition:border-color .18s ease;
  }
  .faq-item.open{border-color:var(--brand-100)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:16px 18px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
  }
  .faq-q:hover{color:var(--brand-600)}
  .faq-sign{
    flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:var(--brand-100);color:var(--brand-700);
    display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;line-height:1;
  }
  .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
  .faq-a-inner{
    padding:0 18px 16px;font-size:14.5px;line-height:1.8;color:var(--ink-600);
    border-left:3px solid var(--brand-600);margin-left:18px;padding-left:14px;
  }
  .faq-item.open .faq-a{max-height:340px}
  .aside-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:22px;box-shadow:var(--shadow-sm);
  }
  .aside-card h3{font-size:17px;font-weight:600}
  .aside-card p{margin-top:10px;font-size:14px;color:var(--ink-600);line-height:1.75}
  .aside-links{margin-top:16px;display:grid;gap:10px}
  .aside-links a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px 14px;border-radius:10px;background:var(--bg);border:1px solid var(--line);
    font-size:14px;color:var(--ink-900);transition:background .18s ease,border-color .18s ease,color .18s ease;
  }
  .aside-links a:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700)}
  .aside-links a svg{width:15px;height:15px;color:var(--brand-600);flex:0 0 auto}

  /* ---------- cta ---------- */
  .cta-card{
    background:linear-gradient(180deg,#FFFFFF 0%,#F3F8FF 100%);
    border:1px solid var(--line);border-radius:16px;
    padding:32px;display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
    box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  }
  .cta-card::after{
    content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(51,130,234,.18),transparent 68%);
  }
  .cta-card h2{font-size:24px;font-weight:700;line-height:1.35;letter-spacing:-.01em}
  .cta-card > div > p{margin-top:12px;font-size:15px;color:var(--ink-600)}
  .cta-checks{margin-top:18px;display:grid;gap:10px}
  .cta-checks li{display:flex;gap:10px;font-size:14px;color:var(--ink-600)}
  .cta-checks .dot{
    flex:0 0 auto;width:20px;height:20px;border-radius:999px;margin-top:3px;
    background:var(--teal-100);color:var(--teal-600);display:inline-flex;align-items:center;justify-content:center;
  }
  .cta-checks .dot svg{width:12px;height:12px}
  .cta-links{display:grid;gap:12px;position:relative;z-index:1}
  .cta-links a{
    display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);
    border-radius:12px;padding:16px 18px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .cta-links a:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-100)}
  .cta-links strong{display:block;font-size:15px;font-weight:600}
  .cta-links span{display:block;font-size:13px;color:var(--ink-400);margin-top:2px}
  .cta-links .arrow{margin-left:auto;color:var(--brand-600);flex:0 0 auto}
  .cta-links .arrow svg{width:16px;height:16px}

  /* ---------- footer ---------- */
  .site-footer{margin-top:20px;background:#fff;border-top:1px solid var(--line)}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:52px 0 36px}
  .footer-brand{display:flex;align-items:center;gap:10px}
  .footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:var(--ink-600);max-width:340px}
  .footer-title{font-size:15px;font-weight:600;margin-bottom:14px}
  .footer-link{display:block;font-size:14px;color:var(--ink-600);margin-bottom:10px;transition:color .18s ease}
  .footer-link:hover{color:var(--brand-600)}
  .footer-info{font-size:14px;color:var(--ink-600);line-height:1.9}
  .footer-info strong{color:var(--ink-900);font-weight:600}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border-top:1px solid var(--line);padding:18px 0 24px;font-size:13px;color:var(--ink-400);
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:var(--ink-600);font-size:13px}
  .to-top svg{width:15px;height:15px}
  .to-top:hover{color:var(--brand-600)}

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:28px;padding-bottom:44px}
    .page-hero h1{font-size:26px}
    .section-head h2,.cta-card h2{font-size:20px}
    .hero-side{order:2}
    .step-row{grid-template-columns:repeat(2,minmax(0,1fr))}
    .step-card::before{display:none}
    .scene-grid{grid-template-columns:1fr;gap:26px}
    .faq-grid{grid-template-columns:1fr}
    .cta-card{grid-template-columns:1fr;padding:26px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:40px 0 28px}
  }
  @media (max-width:900px){
    .search-box{width:100%;flex:1 1 160px}
    .hot-words{display:none}
    .nav-toggle{display:inline-flex}
    .header-top{height:56px;gap:12px}
    .logo-text{font-size:16px}
    .channel-bar{display:none;border-top:none}
    .channel-bar.open{
      display:block;position:absolute;top:100%;left:0;right:0;background:#fff;
      border-bottom:1px solid var(--line);box-shadow:var(--shadow-card);padding:6px 0;
    }
    .channel-inner{flex-direction:column;align-items:stretch;gap:0;height:auto;padding:0}
    .channel-link{height:48px;padding:0 24px;border-left:3px solid transparent}
    .channel-link.active{background:var(--brand-100);border-left-color:var(--brand-600)}
    .channel-link.active::after{display:none}
  }
  @media (max-width:639px){
    .wrap{padding:0 20px}
    .logo-text{font-size:15px;max-width:38vw;overflow:hidden;text-overflow:ellipsis}
    .page-hero h1{font-size:24px}
    .hero-sub{font-size:15px}
    .hero-actions .btn{flex:1 1 100%}
    .guide-list{grid-template-columns:1fr}
    .step-row{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:24px}
    .section{padding:44px 0}
    .cta-card{padding:22px}
  }

/* roulang page: category3 */
:root{
    --brand-700:#12459B;
    --brand-600:#1A63D8;
    --brand-500:#3382EA;
    --brand-100:#E7F0FE;
    --teal-600:#0E9E96;
    --teal-100:#E2F5F3;
    --cta-600:#F2671F;
    --cta-700:#D9550F;
    --ink-900:#0F1B2D;
    --ink-600:#4B5A70;
    --ink-400:#7C8AA0;
    --line:#E3E9F2;
    --bg:#F6F8FC;
    --card:#FFFFFF;
    --container:1200px;
    --shadow-sm:0 1px 2px rgba(15,27,45,.06);
    --shadow-card:0 8px 24px -12px rgba(15,27,45,.18),0 2px 6px rgba(15,27,45,.05);
    --shadow-hover:0 16px 36px -16px rgba(26,99,216,.28);
    --radius-card:14px;
    --radius-btn:10px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-900);
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    font-size:15px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;transition:color .18s ease;}
  button{font:inherit;cursor:pointer;}
  input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,figure{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px;}
  .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;}

  .wrap{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.wrap{padding-left:32px;padding-right:32px;}}
  @media (min-width:1280px){.wrap{padding-left:40px;padding-right:40px;}}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.95);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-stuck{box-shadow:var(--shadow-sm);}
  .header-top{display:flex;align-items:center;gap:18px;height:64px;}
  @media (max-width:1023px){.header-top{height:56px;gap:12px;}}

  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .logo-mark{
    display:grid;place-items:center;width:30px;height:30px;border-radius:9px;
    background:linear-gradient(140deg,var(--brand-600),var(--brand-500));color:#fff;flex:0 0 auto;
  }
  .logo-mark svg{width:18px;height:18px;}
  .logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink-900);white-space:nowrap;}
  @media (max-width:1023px){.logo-text{font-size:16px;}}
  @media (max-width:520px){.logo-text{font-size:15px;}}

  .search-box{position:relative;flex:0 1 300px;margin-left:auto;}
  .search-box input{
    width:100%;height:38px;border-radius:999px;border:1px solid transparent;
    background:#F1F5FB;padding:0 44px 0 16px;font-size:14px;outline:none;
    transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
  }
  .search-box input::placeholder{color:var(--ink-400);}
  .search-box input:focus{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100);}
  .search-btn{
    position:absolute;right:4px;top:50%;transform:translateY(-50%);
    width:32px;height:32px;border:0;border-radius:999px;background:transparent;
    color:var(--ink-400);display:grid;place-items:center;transition:color .18s ease,background .18s ease;
  }
  .search-btn svg{width:16px;height:16px;}
  .search-btn:hover{color:var(--brand-600);background:var(--brand-100);}
  @media (max-width:1023px){.search-box{flex:0 1 190px;}}
  @media (max-width:767px){.search-box{display:none;}}

  .hot-words{display:flex;align-items:center;gap:14px;}
  .hot-words a{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--ink-600);white-space:nowrap;}
  .hot-words a svg{width:13px;height:13px;color:var(--teal-600);}
  .hot-words a:hover{color:var(--brand-600);}
  @media (max-width:1279px){.hot-words{display:none;}}

  .nav-toggle{
    display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:10px;
    background:#fff;color:var(--ink-600);place-items:center;flex:0 0 auto;
    transition:border-color .18s ease,color .18s ease;
  }
  .nav-toggle svg{width:18px;height:18px;}
  .nav-toggle:hover{border-color:var(--brand-500);color:var(--brand-600);}
  @media (max-width:1023px){.nav-toggle{display:grid;}}

  .channel-bar{background:#fff;border-bottom:1px solid var(--line);}
  .channel-inner{display:flex;align-items:center;gap:26px;height:44px;overflow-x:auto;scrollbar-width:none;}
  .channel-inner::-webkit-scrollbar{display:none;}
  .channel-link{
    position:relative;display:flex;align-items:center;height:44px;flex:0 0 auto;
    font-size:14px;color:var(--ink-600);white-space:nowrap;
  }
  .channel-link:hover{color:var(--brand-600);}
  .channel-link.active{color:var(--brand-700);font-weight:700;box-shadow:inset 0 -2px 0 var(--brand-600);}
  @media (max-width:1023px){
    .channel-bar{display:none;}
    .channel-bar.open{display:block;max-height:70vh;overflow-y:auto;}
    .channel-inner{flex-direction:column;align-items:stretch;gap:0;height:auto;padding-top:6px;padding-bottom:12px;}
    .channel-link{height:48px;padding-left:14px;border-left:3px solid transparent;font-size:15px;}
    .channel-link.active{box-shadow:none;border-left-color:var(--brand-600);background:var(--brand-100);border-radius:0 8px 8px 0;}
  }

  /* ---------- 通用区块 ---------- */
  .section{padding-top:40px;padding-bottom:40px;}
  @media (min-width:1024px){.section{padding-top:56px;padding-bottom:56px;}}
  .section-head{margin-bottom:22px;}
  .section-head h2{font-size:24px;line-height:30px;font-weight:700;letter-spacing:-.01em;}
  .section-head p{margin-top:8px;color:var(--ink-600);max-width:760px;}

  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
    font-size:12px;font-weight:600;background:var(--brand-100);color:var(--brand-700);
  }
  .badge.is-teal{background:var(--teal-100);color:var(--teal-600);}
  .badge.is-plain{background:#F1F5FB;color:var(--ink-600);}

  /* ---------- 迷你 Hero ---------- */
  .hero-mini{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line);}
  .hero-mini__bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center right;opacity:.14;
  }
  .hero-mini__glow{
    position:absolute;right:-140px;top:-160px;width:460px;height:460px;border-radius:50%;
    background:radial-gradient(circle,rgba(51,130,234,.30),rgba(51,130,234,0) 70%);
    pointer-events:none;
  }
  .hero-mini__inner{position:relative;padding-top:30px;padding-bottom:34px;}
  @media (min-width:1024px){.hero-mini__inner{padding-top:40px;padding-bottom:42px;}}

  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:14px;}
  .breadcrumb a:hover{color:var(--brand-600);}
  .breadcrumb .sep{color:#C7D2E3;}
  .breadcrumb .current{color:var(--ink-600);}

  .hero-mini h1{font-size:30px;line-height:40px;font-weight:700;letter-spacing:-.01em;max-width:800px;}
  .hero-mini .lead{margin-top:12px;max-width:740px;color:var(--ink-600);}
  @media (max-width:640px){
    .hero-mini h1{font-size:24px;line-height:33px;}
    .hero-mini .lead{font-size:14.5px;}
  }

  .chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .chip{
    display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
    font-size:12.5px;background:#fff;border:1px solid var(--line);color:var(--ink-600);
  }
  .chip svg{width:12px;height:12px;color:var(--teal-600);}
  .chip.is-brand{background:var(--brand-100);border-color:transparent;color:var(--brand-700);}

  /* ---------- 交叉引导条 ---------- */
  .cross-nav{display:grid;gap:16px;}
  @media (min-width:768px){.cross-nav{grid-template-columns:1fr 1fr;}}
  .cross-card{
    display:flex;gap:14px;align-items:flex-start;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:20px;box-shadow:var(--shadow-sm);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .cross-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
  .cross-card__icon{
    display:grid;place-items:center;width:40px;height:40px;border-radius:12px;flex:0 0 auto;
    background:var(--brand-100);color:var(--brand-600);
  }
  .cross-card__icon svg{width:20px;height:20px;}
  .cross-card h3{font-size:17px;font-weight:600;margin-bottom:6px;}
  .cross-card p{color:var(--ink-600);font-size:14px;}
  .cross-card .go{
    display:inline-flex;align-items:center;gap:6px;margin-top:10px;
    font-size:13px;font-weight:600;color:var(--brand-600);
  }
  .cross-card .go svg{width:14px;height:14px;}

  /* ---------- 速览区块 ---------- */
  .glance{display:grid;gap:22px;}
  @media (min-width:1024px){.glance{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:34px;align-items:center;}}
  .glance-figure{
    position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card);background:var(--brand-100);
  }
  .glance-figure img{width:100%;aspect-ratio:8/5;object-fit:cover;}
  .glance-figure figcaption{
    position:absolute;left:14px;bottom:14px;
    background:rgba(255,255,255,.92);border-radius:999px;padding:5px 13px;
    font-size:12.5px;color:var(--ink-600);
  }
  .checklist li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);}
  .checklist li:first-child{padding-top:0;}
  .checklist li:last-child{border-bottom:0;padding-bottom:0;}
  .checklist .tick{
    display:grid;place-items:center;width:22px;height:22px;border-radius:999px;flex:0 0 auto;margin-top:3px;
    background:var(--teal-100);color:var(--teal-600);
  }
  .checklist .tick svg{width:13px;height:13px;}
  .checklist strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:2px;}
  .checklist span.txt{color:var(--ink-600);font-size:14px;}

  /* ---------- 参数对照表 ---------- */
  .table-wrap{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-card);
  }
  .table-scroll{width:100%;overflow-x:auto;}
  table.params{width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px;}
  table.params thead th{
    background:var(--brand-100);color:var(--brand-700);font-weight:700;font-size:13.5px;
    text-align:left;padding:13px 18px;white-space:nowrap;
  }
  table.params tbody td{padding:14px 18px;border-top:1px solid var(--line);color:var(--ink-600);vertical-align:top;}
  table.params tbody tr:nth-child(even){background:#FBFCFE;}
  table.params tbody td:first-child{color:var(--ink-900);font-weight:600;white-space:nowrap;}
  table.params tbody td:last-child{color:var(--ink-900);}
  .table-foot{
    padding:14px 18px;border-top:1px solid var(--line);background:#FBFCFE;
    font-size:13px;color:var(--ink-400);
  }

  /* ---------- FAQ 手风琴 ---------- */
  .faq-wrap{max-width:900px;}
  .faq{display:grid;gap:10px;margin-top:6px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item.open{border-color:var(--brand-100);box-shadow:var(--shadow-card);}
  .faq-q{
    position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
    width:100%;padding:16px 18px;background:none;border:0;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink-900);
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
    background:var(--brand-600);opacity:0;transition:opacity .2s ease;
  }
  .faq-item.open .faq-q::before{opacity:1;}
  .faq-q:hover{color:var(--brand-700);}
  .faq-q .sign{
    position:relative;width:20px;height:20px;flex:0 0 auto;border-radius:999px;
    background:var(--brand-100);display:grid;place-items:center;
  }
  .faq-q .sign::before,.faq-q .sign::after{
    content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .25s ease,opacity .25s ease;
  }
  .faq-q .sign::before{width:10px;height:2px;}
  .faq-q .sign::after{width:2px;height:10px;}
  .faq-item.open .faq-q .sign::after{transform:scaleY(0);opacity:0;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px;line-height:1.85;color:var(--ink-600);}
  .faq-a-inner p + p{margin-top:10px;}

  /* ---------- CTA 带 ---------- */
  .cta-band{
    background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-card);
    padding:24px;display:grid;gap:26px;position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-160px;top:-180px;width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle,rgba(51,130,234,.22),rgba(51,130,234,0) 70%);pointer-events:none;
  }
  @media (min-width:1024px){
    .cta-band{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;padding:34px;align-items:center;}
  }
  .cta-copy{position:relative;}
  .cta-copy h2{font-size:24px;line-height:32px;font-weight:700;letter-spacing:-.01em;}
  .cta-copy > p{margin-top:10px;color:var(--ink-600);max-width:520px;}
  .cta-points{margin-top:18px;display:grid;gap:10px;}
  .cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-600);}
  .cta-points .tick{
    display:grid;place-items:center;width:20px;height:20px;border-radius:999px;flex:0 0 auto;margin-top:3px;
    background:var(--brand-100);color:var(--brand-600);
  }
  .cta-points .tick svg{width:12px;height:12px;}
  .cta-points strong{color:var(--ink-900);font-weight:600;}

  .form-card{
    position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;
  }
  @media (min-width:1024px){.form-card{padding:24px;}}
  .form-card h3{font-size:16px;font-weight:700;margin-bottom:16px;}
  .field{margin-bottom:14px;}
  .field label{display:block;font-size:13px;font-weight:600;color:var(--ink-600);margin-bottom:6px;}
  .field input,.field select,.field textarea{
    width:100%;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
    padding:0 14px;font-size:14.5px;outline:none;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field textarea{height:88px;padding:12px 14px;line-height:1.6;resize:vertical;}
  .field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-100);}
  .field input::placeholder,.field textarea::placeholder{color:var(--ink-400);}
  .btn-cta{
    width:100%;height:46px;border:0;border-radius:var(--radius-btn);
    background:var(--cta-600);color:#fff;font-size:15px;font-weight:700;letter-spacing:.01em;
    transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-cta:hover{background:var(--cta-700);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(217,85,15,.7);}
  .form-note{margin-top:10px;font-size:12.5px;color:var(--ink-400);line-height:1.7;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#fff;border-top:1px solid var(--line);margin-top:44px;}
  .footer-grid{display:grid;gap:28px;padding-top:44px;padding-bottom:32px;}
  @media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
  .footer-brand .logo-mark{width:28px;height:28px;border-radius:8px;}
  .footer-brand .logo-mark svg{width:16px;height:16px;}
  .footer-desc{color:var(--ink-600);font-size:14px;max-width:330px;}
  .footer-title{font-size:15px;font-weight:700;margin-bottom:12px;}
  .footer-link{display:block;font-size:14px;color:var(--ink-600);padding:5px 0;}
  .footer-link:hover{color:var(--brand-600);}
  .footer-info{font-size:14px;color:var(--ink-600);line-height:2;}
  .footer-info strong{color:var(--ink-900);font-weight:600;}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    border-top:1px solid var(--line);padding-top:16px;padding-bottom:24px;
    font-size:13px;color:var(--ink-400);
  }
  .to-top{display:inline-flex;align-items:center;gap:6px;color:var(--ink-600);font-size:13px;}
  .to-top svg{width:14px;height:14px;}
  .to-top:hover{color:var(--brand-600);}

  @media (max-width:640px){
    .card,.cross-card,.table-wrap,.cta-band{box-shadow:var(--shadow-sm);}
  }