/* roulang page: index */
:root{
  --brand:#2B58D6;
  --brand-dark:#1B3A9E;
  --brand-soft:#EAEFFC;
  --brand-line:#C7D6F7;
  --accent:#FF6A2B;
  --accent-soft:#FFF0E8;
  --ok:#00B79C;
  --warn:#F5A524;
  --danger:#E5484D;
  --bg:#F4F6FB;
  --card:#FFFFFF;
  --dark:#0F1B33;
  --text:#101828;
  --text-2:#475467;
  --text-3:#8A94A6;
  --line:#E4E8F0;
  --r-card:16px;
  --r-phone:20px;
  --r-btn:12px;
  --sh-sm:0 1px 2px rgba(16,24,40,.06);
  --sh-md:0 8px 24px rgba(16,24,40,.08);
  --sh-lg:0 16px 40px rgba(16,24,40,.10);
  --ease:200ms ease-out;
}
*{box-sizing:border-box;}
html{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:16px;
  line-height:1.6;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-dark);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-dark{background:var(--dark);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:32px;letter-spacing:-.3px;}
.section-sub{margin-top:10px;color:var(--text-2);font-size:15px;max-width:640px;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;}
.link-more i{font-size:12px;transition:transform var(--ease);}
.link-more:hover i{transform:translateX(4px);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all var(--ease);text-decoration:none;line-height:1;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,88,214,.28);}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(43,88,214,.24);}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-orange{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,43,.24);}
.btn-orange:hover{background:#e85a1c;color:#fff;transform:translateY(-1px);}
.btn-outline{background:#fff;border-color:var(--brand-line);color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-line);}
.btn-ghost{background:transparent;color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-pill{border-radius:999px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* 徽章 */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand);
  border-radius:999px;padding:5px 12px;font-size:12px;font-weight:600;
}
.badge-hot{background:var(--accent-soft);color:#D9510F;}
.badge-live{background:rgba(0,183,156,.12);color:#00806D;}
.badge-live i{font-size:8px;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;padding:14px 0;background:var(--bg);transition:box-shadow var(--ease),background var(--ease);}
.site-header.is-stuck{box-shadow:0 4px 20px rgba(16,24,40,.06);background:rgba(244,246,251,.94);}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-md);
  padding:10px 12px 10px 16px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;border-radius:13px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:24px;height:24px;display:block;}
.logo-text{font-size:17px;font-weight:800;color:var(--text);letter-spacing:-.2px;white-space:nowrap;}
.logo-text:hover{color:var(--brand);}
.nav-list{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;height:44px;padding:0 14px;
  border-radius:12px;background:#F4F6FB;color:var(--text-2);
  font-size:14px;font-weight:600;white-space:nowrap;transition:all var(--ease);
}
.nav-item i{font-size:13px;color:var(--text-3);transition:color var(--ease);}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);}
.nav-item:hover i{color:var(--brand);}
.nav-item.active{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(43,88,214,.26);}
.nav-item.active i{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-cta{height:44px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);}

/* Hero */
.hero{padding:48px 0 80px;}
.hero-card{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--sh-md);padding:44px;
  display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;
}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;}
.hero h1{font-size:42px;letter-spacing:-.8px;margin-bottom:16px;}
.hero h1 span{color:var(--brand);}
.hero-lead{font-size:16px;color:var(--text-2);line-height:1.7;max-width:520px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:12px;}
.trust-item{
  display:flex;align-items:center;gap:8px;
  background:#F8FAFF;border:1px solid var(--line);border-radius:999px;
  padding:8px 14px;font-size:13px;color:var(--text-2);font-weight:500;
}
.trust-item i{color:var(--brand);font-size:13px;}

.phone-wrap{display:flex;justify-content:flex-end;}
.phone-card{
  position:relative;width:100%;max-width:290px;aspect-ratio:9/16;
  border-radius:var(--r-phone);overflow:hidden;box-shadow:var(--sh-lg);
  background-image:linear-gradient(180deg,rgba(15,27,51,.05) 0%,rgba(15,27,51,.72) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.phone-top{position:absolute;top:14px;left:14px;right:14px;display:flex;justify-content:space-between;align-items:center;}
.play-btn{
  position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);
  width:66px;height:66px;border-radius:50%;
  background:rgba(255,255,255,.88);border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px rgba(15,27,51,.3);transition:transform var(--ease);
}
.play-btn::after{
  content:"";display:block;margin-left:4px;
  border-left:18px solid var(--accent);
  border-top:11px solid transparent;border-bottom:11px solid transparent;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06);}
.phone-info{position:absolute;left:14px;right:14px;bottom:14px;color:#fff;}
.phone-info h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:6px;line-height:1.4;}
.phone-info p{font-size:12px;color:rgba(255,255,255,.72);margin-bottom:10px;}
.progress-track{height:4px;border-radius:999px;background:rgba(255,255,255,.24);overflow:hidden;}
.progress-fill{height:100%;width:62%;border-radius:999px;background:var(--accent);}

/* 片段卡列 */
.clip-row{
  display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 20px;margin:0 -4px;
  scrollbar-width:thin;
}
.clip-row::-webkit-scrollbar{height:6px;}
.clip-row::-webkit-scrollbar-thumb{background:var(--brand-line);border-radius:999px;}
.clip-card{
  flex:0 0 230px;scroll-snap-align:start;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-md);cursor:pointer;transition:all var(--ease);
}
.clip-card:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);}
.clip-card:hover .clip-title{color:var(--brand);}
.clip-media{position:relative;aspect-ratio:3/4;overflow:hidden;}
.clip-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.clip-media img.pos-a{object-position:center 20%;}
.clip-media img.pos-b{object-position:center 55%;}
.clip-media img.pos-c{object-position:center 80%;}
.clip-card:hover .clip-media img{transform:scale(1.03);}
.clip-duration{
  position:absolute;left:10px;top:10px;background:rgba(15,27,51,.72);color:#fff;
  font-size:11px;font-weight:600;padding:4px 8px;border-radius:8px;
}
.clip-tag{position:absolute;right:10px;top:10px;}
.clip-body{padding:14px 16px 16px;}
.clip-title{
  font-size:15px;font-weight:700;line-height:1.45;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);min-height:44px;
}
.clip-stats{display:flex;align-items:center;gap:14px;margin-top:10px;font-size:12px;color:var(--text-3);}
.clip-stats i{margin-right:4px;font-size:12px;}

/* 种草清单 */
.pick-list{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.pick-item{
  display:grid;grid-template-columns:64px 120px 1fr;gap:18px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-md);padding:20px;transition:all var(--ease);
}
.pick-item:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);}
.pick-num{font-size:36px;font-weight:800;color:var(--brand-soft);line-height:1;letter-spacing:-1px;font-variant-numeric:tabular-nums;}
.pick-media{width:120px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;}
.pick-media img{width:100%;height:100%;object-fit:cover;}
.pick-body h3{font-size:18px;margin-bottom:8px;}
.pick-points{margin-bottom:14px;}
.pick-points li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2);line-height:1.75;}
.pick-points li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-line);}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-md);transition:all var(--ease);
}
.news-card:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);}
.news-card:hover .news-title a{color:var(--brand);}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;}
.news-meta time{font-size:12px;color:var(--text-3);}
.news-title{font-size:18px;line-height:1.45;margin-bottom:10px;}
.news-title a{color:var(--text);}
.news-summary{font-size:14px;color:var(--text-2);line-height:1.6;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;margin-top:16px;}
.news-empty{
  grid-column:1/-1;background:var(--card);border:1px dashed var(--brand-line);
  border-radius:var(--r-card);padding:48px 24px;text-align:center;
}
.news-empty i{font-size:34px;color:var(--brand-line);display:block;margin-bottom:14px;}
.news-empty p{color:var(--text-2);margin-bottom:18px;}

/* 口碑 */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.voice-card{
  background:#F8FAFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-sm);transition:all var(--ease);
}
.voice-card:hover{box-shadow:var(--sh-md);transform:translateY(-4px);}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.voice-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.voice-name{font-size:14px;font-weight:700;}
.voice-time{font-size:12px;color:var(--text-3);}
.stars{color:var(--accent);font-size:12px;margin-bottom:10px;letter-spacing:2px;}
.voice-text{font-size:14px;color:var(--text-2);line-height:1.7;}

/* FAQ */
.faq-list .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-sm);
}
.faq-list .accordion-button{
  background:#fff;color:var(--text);font-size:17px;font-weight:600;
  padding:20px 56px 20px 22px;border-radius:var(--r-card);position:relative;
  box-shadow:none;transition:box-shadow var(--ease);
}
.faq-list .accordion-button:not(.collapsed){color:var(--brand);box-shadow:inset 3px 0 0 var(--brand);}
.faq-list .accordion-button:focus{box-shadow:none;outline:none;border-color:transparent;}
.faq-list .accordion-button:focus-visible{box-shadow:0 0 0 3px rgba(43,88,214,.28);}
.faq-list .accordion-button::after{display:none;}
.faq-list .accordion-button::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform var(--ease);
}
.faq-list .accordion-button:not(.collapsed)::before{transform:translateY(-50%) rotate(45deg);}
.faq-list .accordion-body{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.75;}

/* CTA */
.cta-card{
  position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--sh-lg);
  background-image:linear-gradient(120deg,rgba(15,27,51,.92) 0%,rgba(27,58,158,.86) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:52px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
}
.cta-card h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-card p{color:rgba(255,255,255,.74);font-size:15px;line-height:1.75;max-width:440px;}
.cta-points{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;}
.cta-points span{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;
  background:rgba(255,255,255,.12);color:#fff;border-radius:999px;padding:7px 14px;
}
.cta-form{
  background:#fff;border-radius:20px;padding:26px;box-shadow:var(--sh-md);
}
.cta-form-title{font-size:17px;font-weight:700;margin-bottom:6px;}
.cta-form-sub{font-size:13px;color:var(--text-3);margin-bottom:18px;}
.form-input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 16px;font-size:15px;color:var(--text);background:#fff;
  transition:all var(--ease);
}
.form-input::placeholder{color:var(--text-3);}
.form-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(43,88,214,.15);}
.form-input.is-error{border-color:var(--danger);box-shadow:0 0 0 4px rgba(229,72,77,.12);}
.check{display:flex;align-items:flex-start;gap:9px;margin:14px 0 18px;font-size:13px;color:var(--text-2);cursor:pointer;}
.check input{
  appearance:none;width:18px;height:18px;border:1px solid var(--line);border-radius:5px;
  margin-top:1px;flex-shrink:0;cursor:pointer;position:relative;transition:all var(--ease);
}
.check input:checked{background:var(--brand);border-color:var(--brand);}
.check input:checked::after{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg);
}
.form-tip{font-size:13px;color:var(--danger);margin-top:10px;min-height:18px;}
.form-tip.is-ok{color:var(--ok);}

/* 页脚 */
.site-footer{background:var(--dark);color:#C9D2E3;padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px;}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-mark{width:38px;height:38px;border-radius:12px;}
.footer-logo span{color:#fff;font-size:16px;font-weight:800;}
.footer-desc{font-size:14px;line-height:1.75;color:#8A94A6;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:#8A94A6;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#8A94A6;font-size:14px;}
.footer-contact i{color:var(--brand-line);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:#8A94A6;}
.footer-bottom a{color:#8A94A6;}
.footer-bottom a:hover{color:#fff;}

@media (max-width:1199.98px){
  .hero h1{font-size:36px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .pick-list{grid-template-columns:1fr;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section-head h2{font-size:26px;}
  .site-header{padding:10px 0;}
  .nav-panel{padding:10px 12px;gap:12px;}
  .logo-text{font-size:15px;}
  .nav-list{
    position:absolute;left:12px;right:12px;top:76px;flex-direction:column;
    align-items:stretch;gap:8px;background:var(--dark);border-radius:18px;
    padding:16px;box-shadow:var(--sh-lg);display:none;z-index:1050;max-height:calc(100vh - 110px);overflow-y:auto;
  }
  .nav-list.open{display:flex;}
  .nav-item{background:rgba(255,255,255,.07);color:#C9D2E3;height:50px;justify-content:flex-start;padding:0 16px;font-size:15px;}
  .nav-item i{color:#8A94A6;}
  .nav-item:hover{background:rgba(43,88,214,.32);color:#fff;}
  .nav-item:hover i{color:#fff;}
  .nav-item.active{background:var(--brand);color:#fff;}
  .nav-item.active i{color:#fff;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .hero{padding:32px 0 56px;}
  .hero-card{grid-template-columns:1fr;padding:28px;gap:32px;}
  .hero h1{font-size:30px;}
  .phone-wrap{justify-content:center;}
  .phone-card{max-width:280px;}
  .pick-item{grid-template-columns:56px 104px 1fr;gap:14px;padding:16px;}
  .pick-media{width:104px;}
  .cta-card{grid-template-columns:1fr;padding:32px;}
  .cta-card h2{font-size:24px;}
  .voice-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:12px;}
  .voice-card{flex:0 0 260px;scroll-snap-align:start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .section-head h2{font-size:24px;}
  .hero h1{font-size:26px;}
  .hero-lead{font-size:15px;}
  .hero-btns .btn{width:100%;}
  .news-grid{grid-template-columns:1fr;}
  .pick-item{grid-template-columns:1fr;gap:14px;}
  .pick-media{width:100%;aspect-ratio:16/9;}
  .pick-num{font-size:30px;}
  .clip-card{flex:0 0 78%;}
  .cta-card{padding:24px;border-radius:20px;}
  .cta-form{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .site-footer{padding-top:48px;margin-top:64px;}
}

/* roulang page: category1 */
:root{
  --brand:#2B58D6;
  --brand-dark:#1B3A9E;
  --brand-soft:#EAEFFC;
  --brand-line:#C7D6F7;
  --accent:#FF6A2B;
  --accent-soft:#FFF0E8;
  --ok:#00B79C;
  --warn:#F5A524;
  --danger:#E5484D;
  --bg:#F4F6FB;
  --card:#FFFFFF;
  --dark:#0F1B33;
  --ink:#101828;
  --ink-2:#475467;
  --ink-3:#8A94A6;
  --line:#E4E8F0;
  --r-sm:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,24,40,.06);
  --sh-md:0 8px 24px rgba(16,24,40,.08);
  --sh-lg:0 16px 40px rgba(16,24,40,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.6;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(43,88,214,.28);outline-offset:2px;border-radius:8px}

.container,.container-fluid{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--bg);
  padding:14px 0 10px;
}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:10px 14px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:16px;
  color:var(--ink);
  white-space:nowrap;
  flex-shrink:0;
}
.logo:hover{color:var(--brand)}
.logo-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.logo-mark svg{width:22px;height:22px}
.logo-mark.sm{width:26px;height:26px;border-radius:8px}
.logo-mark.sm svg{width:17px;height:17px}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  margin:0 auto;
  padding:0;
  list-style:none;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:7px;
  height:42px;
  padding:0 13px;
  border-radius:var(--r-sm);
  background:var(--bg);
  border:1px solid transparent;
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.nav-item i{font-size:13px;color:var(--ink-3);transition:color .2s ease-out}
.nav-item:hover,.nav-item:focus-visible{
  background:var(--brand-soft);
  color:var(--brand);
  border-color:var(--brand-line);
}
.nav-item:hover i,.nav-item:focus-visible i{color:var(--brand)}
.nav-item.active{
  background:var(--brand);
  color:#fff;
  border-color:var(--brand);
}
.nav-item.active i{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-cta-mobile{display:none}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  text-align:center;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-sub{background:#fff;color:var(--brand);border-color:var(--brand-line)}
.btn-sub:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#E85A1C;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-pill{border-radius:var(--r-pill)}
.btn-block{width:100%}
.btn:disabled{opacity:.5;transform:none;cursor:not-allowed}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand)}

/* ============ 通用板块 ============ */
.section{padding:56px 0}
.section-tight{padding:40px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:26px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.2px;
}
.section-head p{
  margin-top:8px;
  color:var(--ink-2);
  font-size:15px;
  max-width:640px;
}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
.link-more:hover{color:var(--brand-dark)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:16px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  padding:16px 0 4px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3CBD8}
.breadcrumb .current{color:var(--ink-2);font-weight:600}

/* ============ Hero ============ */
.hero{padding:32px 0 64px}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.hero h1{
  font-size:42px;
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.5px;
}
.hero-sub{
  margin-top:16px;
  font-size:17px;
  color:var(--ink-2);
  max-width:520px;
}
.hero-actions{
  display:flex;
  gap:12px;
  margin-top:28px;
  flex-wrap:wrap;
}
.hero-trust{
  display:flex;
  gap:28px;
  margin-top:36px;
  flex-wrap:wrap;
}
.trust-item{display:flex;align-items:center;gap:10px}
.trust-item i{
  width:38px;
  height:38px;
  border-radius:11px;
  background:var(--brand-soft);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  flex-shrink:0;
}
.trust-item strong{display:block;font-size:16px;font-weight:700}
.trust-item span{display:block;font-size:13px;color:var(--ink-3)}

.phone-wrap{display:flex;justify-content:flex-end}
.phone-card{
  position:relative;
  width:100%;
  max-width:300px;
  aspect-ratio:9 / 16;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-lg);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.phone-top{
  position:absolute;
  top:14px;
  left:14px;
  right:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  z-index:3;
}
.phone-live{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  color:#fff;
  background:rgba(15,27,51,.42);
  padding:5px 10px;
  border-radius:var(--r-pill);
}
.phone-live i{font-size:7px;color:var(--ok)}
.mock-panel{
  position:absolute;
  top:23%;
  left:16px;
  right:16px;
  background:rgba(255,255,255,.95);
  border-radius:14px;
  padding:16px;
  z-index:3;
  box-shadow:var(--sh-md);
}
.mock-label{
  font-size:11px;
  color:var(--ink-3);
  margin-bottom:5px;
  font-weight:600;
}
.mock-field{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:36px;
  padding:0 11px;
  border-radius:9px;
  border:1px solid var(--line);
  background:#fff;
  font-size:12px;
  color:var(--ink-2);
  margin-bottom:12px;
}
.mock-field em{
  font-style:normal;
  color:var(--accent);
  font-weight:600;
}
.mock-btn{
  height:38px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-size:13px;
  font-weight:600;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:4px;
}
.phone-mask{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:52%;
  background:linear-gradient(transparent,rgba(15,27,51,.72));
  z-index:2;
}
.phone-bottom{
  position:absolute;
  left:18px;
  right:18px;
  bottom:18px;
  z-index:3;
}
.phone-info{
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:#fff;
  font-size:13px;
  font-weight:600;
  margin-bottom:8px;
}
.phone-info span{color:rgba(255,255,255,.78);font-weight:500;font-size:12px}
.mini-progress{
  height:5px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.28);
  overflow:hidden;
}
.mini-progress span{
  display:block;
  width:66%;
  height:100%;
  border-radius:var(--r-pill);
  background:var(--accent);
}

/* ============ 卡墙 ============ */
.filter-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:6px;
  margin-bottom:24px;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.chip{
  flex-shrink:0;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:all .2s ease-out;
}
.chip:hover{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}

.wall{
  column-count:3;
  column-gap:20px;
}
.vcard{
  break-inside:avoid;
  margin-bottom:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-md);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
  cursor:pointer;
}
.vcard:hover,.vcard:focus-within{
  box-shadow:var(--sh-lg);
  transform:translateY(-4px);
}
.vcard-media{position:relative;overflow:hidden;background:#EEF1F7}
.vcard-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.ratio-tall img{aspect-ratio:3 / 4}
.ratio-mid img{aspect-ratio:4 / 3}
.ratio-wide img{aspect-ratio:16 / 9}
.vcard:hover .vcard-media img{transform:scale(1.03)}
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  line-height:1.5;
}
.badge-cat{
  position:absolute;
  left:12px;
  top:12px;
  background:rgba(255,255,255,.94);
  color:var(--brand);
}
.badge-hot{
  position:absolute;
  right:12px;
  top:12px;
  background:var(--accent);
  color:#fff;
}
.vcard-body{padding:18px}
.vcard-body h3{
  font-size:16px;
  font-weight:700;
  line-height:1.4;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease-out;
}
.vcard:hover .vcard-body h3{color:var(--brand)}
.vcard-body p{
  margin-top:8px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.vcard-meta{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--ink-3);
}
.vcard-meta span{display:inline-flex;align-items:center;gap:5px}
.vcard-meta i{font-size:12px}

/* ============ 深色安全面板 ============ */
.dark-panel{
  background:var(--dark);
  border-radius:var(--r-lg);
  padding:44px 40px;
  color:#fff;
}
.dark-panel h2{
  font-size:26px;
  font-weight:700;
  line-height:1.3;
}
.dark-panel > p{
  margin-top:10px;
  color:rgba(255,255,255,.68);
  font-size:15px;
  max-width:660px;
}
.shield-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
  margin-top:32px;
}
.shield-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:14px;
  padding:20px;
  transition:background-color .2s ease-out,border-color .2s ease-out;
}
.shield-item:hover{background:rgba(255,255,255,.1);border-color:rgba(199,214,247,.42)}
.shield-item i{
  width:38px;
  height:38px;
  border-radius:11px;
  background:rgba(43,88,214,.42);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:14px;
  font-size:15px;
}
.shield-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.shield-item p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:28px;
  padding-top:28px;
  border-top:1px solid rgba(255,255,255,.14);
}
.stat-item strong{
  display:block;
  font-size:24px;
  font-weight:800;
  letter-spacing:-.3px;
  font-variant-numeric:tabular-nums;
}
.stat-item span{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 排查区 ============ */
.fix-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:44px;
  align-items:center;
}
.check-list{margin-top:24px}
.check-list li{
  display:flex;
  gap:14px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list .num{
  width:28px;
  height:28px;
  border-radius:9px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.check-list h4{font-size:16px;font-weight:700;margin-bottom:4px}
.check-list p{font-size:14px;color:var(--ink-2);line-height:1.65}
.fix-visual{position:relative}
.fix-visual > img{
  width:100%;
  aspect-ratio:4 / 3;
  object-fit:cover;
  object-position:center 30%;
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
}
.float-card{
  position:absolute;
  left:-16px;
  bottom:-20px;
  width:250px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--sh-lg);
  padding:16px 18px;
}
.float-card strong{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--brand);
  margin-bottom:6px;
}
.float-card p{font-size:13px;color:var(--ink-2);line-height:1.6}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 22px 20px 26px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  border:0;
  text-align:left;
  box-shadow:none;
  transition:color .2s ease-out,background-color .2s ease-out;
}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  opacity:0;
  transition:opacity .2s ease-out;
}
.accordion-button:not(.collapsed){color:var(--brand)}
.accordion-button:not(.collapsed)::before{opacity:1}
.accordion-button::after{display:none}
.accordion-button .faq-plus{
  margin-left:auto;
  font-size:14px;
  color:var(--ink-3);
  transition:transform .2s ease-out,color .2s ease-out;
  flex-shrink:0;
}
.accordion-button:not(.collapsed) .faq-plus{
  transform:rotate(45deg);
  color:var(--brand);
}
.accordion-body{
  padding:0 26px 22px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
}

/* ============ CTA ============ */
.cta-card{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-md);
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(234,239,252,.95);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 420px;
  gap:48px;
  padding:44px 40px;
  align-items:center;
}
.cta-inner h2{font-size:26px;font-weight:700;line-height:1.3}
.cta-inner > div > p{
  margin-top:12px;
  font-size:15px;
  color:var(--ink-2);
  max-width:520px;
}
.cta-points{
  display:flex;
  gap:20px;
  margin-top:22px;
  flex-wrap:wrap;
}
.cta-points span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:var(--ink-2);
}
.cta-points i{color:var(--ok)}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:24px;
}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:16px}
.field{margin-bottom:14px}
.field label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--ink-2);
  margin-bottom:7px;
}
.input{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:15px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.input::placeholder{color:#A9B2C1}
.input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(43,88,214,.15);
}
.input.is-error{
  border-color:var(--danger);
  box-shadow:0 0 0 4px rgba(229,72,77,.12);
}
.agree{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--ink-2);
  line-height:1.6;
  margin:14px 0 16px;
}
.agree input{
  width:18px;
  height:18px;
  margin-top:1px;
  accent-color:var(--brand);
  flex-shrink:0;
}
.form-tip{
  margin-top:12px;
  font-size:13px;
  color:var(--ink-3);
  min-height:20px;
}
.form-tip.err{color:var(--danger)}
.form-tip.ok{color:var(--ok)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.78);
  margin-top:64px;
}
.footer-strip{
  height:5px;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding:52px 0 36px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:17px;
  margin-bottom:16px;
}
.footer-desc{
  font-size:14px;
  line-height:1.75;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  color:#fff;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{
  font-size:14px;
  color:var(--ink-3);
}
.footer-col ul a:hover{color:#fff}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:14px;
  color:var(--ink-3);
  margin-bottom:11px;
}
.footer-contact i{margin-top:3px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .wall{column-count:2}
  .cta-inner{grid-template-columns:1fr 380px;gap:32px;padding:40px 32px}
}
@media (max-width:991.98px){
  .nav-panel{padding:8px 12px}
  .nav-list{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    margin:0;
    padding:14px;
    background:var(--dark);
    border-radius:var(--r-card);
    box-shadow:var(--sh-lg);
    max-height:calc(100vh - 130px);
    overflow-y:auto;
    z-index:40;
  }
  .nav-list.open{display:flex}
  .nav-item{
    width:100%;
    height:48px;
    justify-content:flex-start;
    background:rgba(255,255,255,.07);
    border-color:rgba(255,255,255,.12);
    color:#E7ECF7;
    font-size:15px;
  }
  .nav-item i{color:#B9C5DD}
  .nav-item:hover,.nav-item:focus-visible{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(199,214,247,.5)}
  .nav-item:hover i,.nav-item:focus-visible i{color:#fff}
  .nav-item.active{background:var(--brand);border-color:var(--brand);color:#fff}
  .nav-item.active i{color:#fff}
  .nav-cta{display:none}
  .nav-cta-mobile{display:block;margin-top:6px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .logo{margin-right:auto}
  .hero{padding:20px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:32px}
  .phone-wrap{justify-content:center}
  .phone-card{max-width:280px;margin:0 auto}
  .phone-mask{height:48%}
  .dark-panel{padding:32px 24px}
  .shield-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:20px}
  .fix-grid{grid-template-columns:1fr;gap:48px}
  .float-card{position:static;width:100%;margin-top:16px}
  .cta-inner{grid-template-columns:1fr;padding:32px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:40px 0 28px}
  .footer-desc{max-width:none}
}
@media (max-width:767.98px){
  .container,.container-fluid{padding-left:18px;padding-right:18px}
  .section{padding:40px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:20px}
  .section-head h2,.dark-panel h2,.cta-inner h2{font-size:22px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-trust{gap:18px;margin-top:28px}
  .wall{column-count:1}
  .stat-item strong{font-size:21px}
  .accordion-button{font-size:16px;padding:17px 18px 17px 22px}
  .accordion-body{padding:0 22px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-card::before{background:rgba(234,239,252,.96)}
}
@media (max-width:520px){
  .logo-text{font-size:15px}
  .phone-card{max-width:100%;aspect-ratio:9 / 15}
  .hero-trust{flex-direction:column;gap:14px}
}

/* roulang page: article */
:root{
  --brand:#2B58D6;
  --brand-dark:#1B3A9E;
  --brand-soft:#EAEFFC;
  --brand-line:#C7D6F7;
  --accent:#FF6A2B;
  --accent-soft:#FFF0E8;
  --ok:#00B79C;
  --warn:#F5A524;
  --err:#E5484D;
  --bg:#F4F6FB;
  --card:#FFFFFF;
  --panel:#0F1B33;
  --text:#101828;
  --muted:#475467;
  --weak:#8A94A6;
  --line:#E4E8F0;
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --sh-sm:0 1px 2px rgba(16,24,40,.06);
  --sh-md:0 8px 24px rgba(16,24,40,.08);
  --sh-lg:0 16px 40px rgba(16,24,40,.10);
  --focus:0 0 0 3px rgba(43,88,214,.28);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{line-height:1.25;margin:0;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  padding:16px 0 8px;
  background:rgba(244,246,251,.92);
  backdrop-filter:blur(10px);
}
.site-header.is-stuck{padding:12px 0 8px;border-bottom:1px solid var(--line);}
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:10px 16px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text);font-weight:800;font-size:17px;}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--brand);
  display:grid;place-items:center;
  box-shadow:0 6px 14px rgba(43,88,214,.28);
  flex-shrink:0;
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{white-space:nowrap;}

.nav-list{
  display:flex;align-items:center;gap:8px;
  list-style:none;margin:0 auto;padding:0;
}
.nav-item{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;
  border-radius:var(--r-btn);
  background:var(--bg);
  color:var(--muted);
  font-size:15px;font-weight:600;
  white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-item i{font-size:14px;color:var(--weak);transition:color .2s ease-out;}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);}
.nav-item:hover i{color:var(--brand);}
.nav-item.active{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(43,88,214,.28);}
.nav-item.active i{color:#fff;}

.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:700;
  cursor:pointer;
  transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.btn:focus-visible{outline:none;box-shadow:var(--focus);}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(43,88,214,.24);}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.24);}
.btn-accent:hover{background:#E85A1D;color:#fff;transform:translateY(-1px);}
.btn-pill{border-radius:999px;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;transform:none;}

.nav-cta{padding:11px 20px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--text);
  align-items:center;justify-content:center;
  cursor:pointer;font-size:17px;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line);}

/* ---------- 面包屑与标题区 ---------- */
.crumb-wrap{padding:22px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--weak);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C7CEDA;}
.crumb .current{color:var(--weak);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:30px 32px 26px;
  margin-top:16px;
}
.article-head h1{
  font-size:34px;
  font-weight:800;
  color:var(--text);
  margin-bottom:18px;
}
.meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:14px;color:var(--weak);}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:#D5DBE6;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:5px 13px;
  font-size:12px;font-weight:700;line-height:1.4;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-ok{background:rgba(0,183,156,.12);color:var(--ok);}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto;}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:grid;place-items:center;cursor:pointer;font-size:15px;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.icon-btn:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line);}
.icon-btn:focus-visible{outline:none;box-shadow:var(--focus);}

/* ---------- 主体布局 ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;
  align-items:start;
  margin:28px 0 72px;
}
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:34px 40px 36px;
}
.article-body{
  max-width:800px;
  margin:0 auto;
  font-size:17px;
  line-height:1.9;
  color:#1C2537;
  word-wrap:break-word;
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:24px;font-weight:800;color:var(--text);
  margin:1.9em 0 .75em;padding-left:14px;
  border-left:4px solid var(--brand);line-height:1.4;
}
.article-body h3{font-size:19px;font-weight:700;color:var(--text);margin:1.6em 0 .6em;}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em;}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em;}
.article-body li{margin:.45em 0;}
.article-body ul li::marker{color:var(--brand);}
.article-body strong{color:var(--text);}
.article-body blockquote{
  margin:1.5em 0;padding:14px 20px;
  border-left:4px solid var(--brand);
  background:var(--brand-soft);
  border-radius:0 12px 12px 0;
  color:var(--muted);
}
.article-body img{border-radius:var(--r-img);margin:1.5em auto;}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{font-size:14px;color:var(--weak);text-align:center;margin-top:10px;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-dark);}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.5em 0;
  display:block;overflow-x:auto;font-size:15px;
}
.article-body th,.article-body td{
  padding:11px 14px;text-align:left;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body th{background:#F8FAFF;font-weight:700;color:var(--muted);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

.empty-state{
  text-align:center;padding:56px 20px;
  border:1px dashed var(--line);border-radius:var(--r-card);background:#FBFCFE;
}
.empty-state .es-icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;
  background:var(--brand-soft);display:grid;place-items:center;
  color:var(--brand);font-size:26px;
}
.empty-state h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:14px;color:var(--weak);margin-bottom:20px;}

.tags-row{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:30px;padding-top:22px;border-top:1px dashed var(--line);
}
.tags-row .tag-label{font-size:13px;color:var(--weak);margin-right:4px;line-height:30px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.tag:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line);}

.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;}
.pn-card{
  display:block;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-sm);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.pn-card:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);border-color:var(--brand-line);}
.pn-label{font-size:12px;color:var(--weak);display:flex;align-items:center;gap:6px;margin-bottom:8px;}
.pn-title{font-size:15px;font-weight:700;color:var(--text);line-height:1.5;}
.pn-card:hover .pn-title{color:var(--brand);}

/* ---------- 侧栏 ---------- */
.sidebar-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:20px;
}
.side-card h3{font-size:16px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand);font-size:14px;}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px;}
.side-list a{
  display:flex;align-items:center;gap:8px;
  padding:9px 12px;border-radius:10px;
  font-size:14px;color:var(--muted);
  transition:background .2s ease-out,color .2s ease-out;
}
.side-list a:hover{background:var(--brand-soft);color:var(--brand);}
.side-list a i{font-size:12px;color:var(--weak);}
.side-list a:hover i{color:var(--brand);}

.mini-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);}
.mini-post:last-child{border-bottom:0;padding-bottom:0;}
.mini-post .mp-thumb{
  width:84px;height:60px;flex-shrink:0;border-radius:10px;overflow:hidden;background:#EEF1F7;
}
.mini-post .mp-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-post h4{
  font-size:14px;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-post:hover h4{color:var(--brand);}
.mini-post span{font-size:12px;color:var(--weak);}

.mobile-toc{margin-bottom:18px;display:none;}
.mobile-toc .mtc-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px 18px;font-size:15px;font-weight:700;color:var(--text);cursor:pointer;
}
.mobile-toc .mtc-toggle i{color:var(--brand);}
.mobile-toc .mtc-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-top:10px;padding:12px;
}

/* ---------- 相关推荐 ---------- */
.section{margin-top:56px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.sec-head h2{font-size:26px;font-weight:800;}
.sec-head .sec-sub{font-size:14px;color:var(--weak);margin-top:8px;}
.sec-head .sec-link{font-size:14px;font-weight:700;color:var(--brand);white-space:nowrap;}
.sec-head .sec-link:hover{color:var(--brand-dark);}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
  cursor:pointer;
}
.post-card:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);border-color:var(--brand-line);}
.post-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF1F7;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .thumb .badge{position:absolute;top:12px;left:12px;}
.post-card .pc-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-card h3{
  font-size:17px;font-weight:700;color:var(--text);margin-bottom:10px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--brand);}
.post-card .pc-desc{
  font-size:14px;color:var(--muted);line-height:1.6;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .pc-meta{margin-top:auto;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--weak);}
.post-card .pc-meta i{font-size:12px;margin-right:4px;}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:56px;
  border-radius:20px;
  padding:44px 48px;
  color:#fff;
  background-color:var(--panel);
  background-image:linear-gradient(rgba(15,27,51,.84),rgba(15,27,51,.84)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-lg);
}
.cta-band h2{font-size:28px;font-weight:800;color:#fff;margin-bottom:12px;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.72);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}
.cta-band .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.28);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;background:var(--panel);color:#8A94A6;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:32px;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px;}
.footer-logo .logo-mark{background:var(--brand);}
.footer-desc{font-size:14px;line-height:1.8;max-width:340px;color:#8A94A6;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;font-size:14px;}
.footer-col a{color:#8A94A6;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#8A94A6;}
.footer-contact i{margin-top:4px;color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#8A94A6;
}

.to-top{
  position:fixed;right:24px;bottom:28px;z-index:150;
  width:46px;height:46px;border-radius:14px;
  background:var(--brand);color:#fff;border:0;
  display:none;place-items:center;cursor:pointer;font-size:16px;
  box-shadow:0 10px 24px rgba(43,88,214,.32);
  transition:background .2s ease-out,transform .2s ease-out;
}
.to-top.show{display:grid;}
.to-top:hover{background:var(--brand-dark);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr);}
  .sidebar{display:none;}
  .mobile-toc{display:block;}
}
@media (max-width:991px){
  .nav-panel{padding:10px 12px;gap:12px;}
  .nav-toggle{display:inline-flex;}
  .nav-list{
    position:fixed;top:82px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:8px;
    background:var(--panel);
    border-radius:var(--r-card);
    padding:14px;
    box-shadow:var(--sh-lg);
    max-height:calc(100vh - 120px);
    overflow-y:auto;
    display:none;
    z-index:190;
  }
  .nav-list.open{display:flex;}
  .nav-list .nav-item{
    background:rgba(255,255,255,.06);color:#E4E8F0;
    height:48px;width:100%;justify-content:flex-start;font-size:15px;
  }
  .nav-list .nav-item i{color:#8A94A6;}
  .nav-list .nav-item:hover{background:rgba(255,255,255,.12);color:#fff;}
  .nav-list .nav-item.active{background:var(--brand);color:#fff;}
  .nav-cta{padding:10px 16px;font-size:14px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-card{padding:26px 22px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-desc{max-width:none;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .article-head{padding:22px 20px;border-radius:14px;}
  .article-head h1{font-size:26px;}
  .share-group{margin-left:0;width:100%;}
  .article-card{padding:22px 18px 24px;border-radius:14px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;}
  .article-body h3{font-size:17px;}
  .layout{margin:20px 0 48px;gap:24px;}
  .crumb .current{max-width:200px;}
  .section{margin-top:40px;}
  .sec-head h2{font-size:21px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .prevnext{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:30px 20px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:48px 0 22px;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:575px){
  .logo-text{font-size:15px;}
  .nav-cta{display:none;}
  .mobile-toc .mtc-toggle{padding:12px 14px;font-size:14px;}
}

/* roulang page: category2 */
:root{
  --brand:#2B58D6;
  --brand-deep:#1B3A9E;
  --brand-soft:#EAEFFC;
  --brand-line:#C7D6F7;
  --accent:#FF6A2B;
  --accent-soft:#FFF0E8;
  --ok:#00B79C;
  --warn:#F5A524;
  --danger:#E5484D;
  --bg:#F4F6FB;
  --card:#FFFFFF;
  --dark:#0F1B33;
  --text:#101828;
  --text-2:#475467;
  --text-3:#8A94A6;
  --line:#E4E8F0;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:12px;
  --sh-sm:0 1px 2px rgba(16,24,40,.06);
  --sh-md:0 8px 24px rgba(16,24,40,.08);
  --sh-lg:0 16px 40px rgba(16,24,40,.10);
  --t:200ms ease-out;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.6;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--text)}
h1{font-size:42px}
h2{font-size:32px}
h3{font-size:22px}
h4{font-size:18px}
p{margin:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-deep)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:84px 0}
.section-tight{padding:56px 0}
.section-head{margin-bottom:32px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:620px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:999px;padding:6px 14px}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:1030;padding:12px 0;background:rgba(244,246,251,.94);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color var(--t),box-shadow var(--t)}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh-sm)}
.nav-panel{position:relative;display:flex;align-items:center;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-md);padding:10px 16px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text)}
.logo:hover{color:var(--text)}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--brand);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-mark svg{width:22px;height:22px}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:6px;margin:0 0 0 auto;flex-wrap:nowrap}
.nav-item{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 14px;border-radius:var(--r-btn);background:var(--bg);border:1px solid transparent;color:var(--text-2);font-size:14px;font-weight:600;white-space:nowrap;transition:all var(--t)}
.nav-item i{font-size:14px;color:var(--text-3);transition:color var(--t)}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line)}
.nav-item:hover i{color:var(--brand)}
.nav-item.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.nav-item.active i{color:#fff}
.nav-item:focus-visible{outline:3px solid rgba(43,88,214,.28);outline-offset:2px}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--bg);color:var(--text-2);font-size:17px;cursor:pointer;transition:all var(--t)}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:all var(--t);text-align:center}
.btn:focus-visible{outline:3px solid rgba(43,88,214,.28);outline-offset:2px}
.btn-main{background:var(--brand);color:#fff}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--brand-line);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#E85A1C;color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}
.nav-cta{height:44px;padding:0 20px;font-size:14px}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more i{font-size:12px;transition:transform var(--t)}
.link-more:hover i{transform:translateX(3px)}

/* ---------- Badges ---------- */
.badge-soft{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);border:1px solid var(--brand-line)}
.badge-accent{background:var(--accent-soft);color:#C6451A;border-color:#FFD6C2}
.badge-ok{background:#E4F8F5;color:#007A69;border-color:#B8EBE3}
.badge-warn{background:#FFF6E5;color:#8A5A00;border-color:#FFE2B0}

/* ---------- Breadcrumb ---------- */
.breadcrumb-bar{padding:20px 0 0}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.crumb a{color:var(--text-2);font-weight:500}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:#C3CAD8}
.crumb .current{color:var(--text);font-weight:600}

/* ---------- Hero ---------- */
.hero{padding:36px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-title{margin:18px 0 16px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:34em}
.hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.trust-row{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-btn);box-shadow:var(--sh-sm);padding:12px 16px;min-width:170px}
.trust-item i{font-size:16px;color:var(--brand)}
.trust-item b{display:block;font-size:15px;font-weight:700}
.trust-item small{color:var(--text-3);font-size:12px}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:400px;box-shadow:var(--sh-lg);background:#0F1B33 url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,27,51,0) 30%,rgba(15,27,51,.72) 100%)}
.hero-live{position:absolute;top:18px;left:18px;z-index:2;display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.92);color:var(--text);font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px}
.hero-live .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(0,183,156,.2)}
.hero-scorecard{position:absolute;left:18px;right:18px;bottom:18px;z-index:2;background:rgba(255,255,255,.96);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-md)}
.score-line{display:flex;align-items:center;justify-content:space-between;gap:12px}
.score-line span{font-size:13px;color:var(--text-2)}
.score-line strong{font-size:22px;font-weight:700;letter-spacing:1px}
.progress-track{height:6px;border-radius:999px;background:#E9EDF6;margin:12px 0 8px;overflow:hidden}
.progress-track span{display:block;height:100%;background:var(--brand);border-radius:999px}
.hero-scorecard p{font-size:12px;color:var(--text-3)}

/* ---------- Layout with anchor ---------- */
.layout-grid{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:start}
.anchor-card{position:sticky;top:96px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-md);padding:20px}
.anchor-card h2{font-size:16px;margin-bottom:12px}
.anchor-note{font-size:12px;color:var(--text-3);margin-bottom:14px;line-height:1.5}
.anchor-list{display:flex;flex-direction:column;gap:6px}
.anchor-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r-btn);font-size:14px;font-weight:600;color:var(--text-2);border:1px solid transparent;transition:all var(--t)}
.anchor-link i{font-size:12px;color:var(--text-3)}
.anchor-link:hover{background:var(--brand-soft);color:var(--brand)}
.anchor-link.active{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line)}
.anchor-link.active i{color:var(--brand)}
.anchor-cta{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.anchor-cta p{font-size:12px;color:var(--text-3);line-height:1.5}

/* ---------- Flow blocks ---------- */
.flow{display:flex;flex-direction:column;gap:28px}
.flow-block{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-md);padding:24px;scroll-margin-top:104px;transition:box-shadow var(--t),transform var(--t)}
.flow-block:hover{box-shadow:var(--sh-lg);transform:translateY(-2px)}
.flow-inner{display:grid;grid-template-columns:1fr .9fr;gap:26px;align-items:center}
.flow-inner.reverse .flow-media{order:2}
.flow-media{border-radius:14px;overflow:hidden;aspect-ratio:16/11;background:#E9EDF6}
.flow-media img{width:100%;height:100%;object-fit:cover}
.flow-body h3{margin-bottom:12px}
.flow-body p{color:var(--text-2);font-size:15px;line-height:1.85}
.check-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.6}
.check-list li i{color:var(--ok);font-size:14px;margin-top:4px;flex-shrink:0}

/* ---------- Stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:20px;transition:all var(--t)}
.stat-card:hover{box-shadow:var(--sh-md);transform:translateY(-3px)}
.stat-card b{display:block;font-size:26px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-card span{font-size:13px;color:var(--text-2);display:block;margin-top:6px}

/* ---------- Compare ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-md);padding:24px}
.compare-card.featured{border-color:var(--brand-line);background:var(--brand-soft)}
.compare-card h4{margin-bottom:6px}
.compare-card .compare-tag{font-size:12px;font-weight:600;color:var(--brand);margin-bottom:14px;display:block}
.compare-list{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.compare-list li{display:flex;justify-content:space-between;gap:14px;font-size:14px;color:var(--text-2);padding-bottom:12px;border-bottom:1px dashed var(--line)}
.compare-list li:last-child{border-bottom:0;padding-bottom:0}
.compare-list li strong{color:var(--text);font-weight:600;white-space:nowrap}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{position:relative;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);margin-bottom:14px;overflow:hidden;background:var(--card)}
.faq-accordion .accordion-item:last-child{margin-bottom:0}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed))::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--brand)}
.faq-accordion .accordion-button{width:100%;background:transparent;border:0;padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;box-shadow:none}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:3px solid rgba(43,88,214,.18);outline-offset:-3px}
.faq-icon{font-size:14px;color:var(--text-3);transition:transform var(--t),color var(--t);flex-shrink:0}
.faq-accordion .accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg);color:var(--brand)}
.faq-accordion .accordion-body{padding:0 22px 22px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-panel{position:relative;border-radius:var(--r-lg);overflow:hidden;background:#0F1B33 url('/assets/images/backpic/back-3.png') center/cover no-repeat;box-shadow:var(--sh-lg);padding:44px}
.cta-panel::after{content:"";position:absolute;inset:0;background:linear-gradient(140deg,rgba(15,27,51,.92) 0%,rgba(15,27,51,.78) 100%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.cta-inner h2{color:#fff;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;line-height:1.8}
.cta-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;color:rgba(255,255,255,.86);font-size:14px}
.cta-points li i{color:var(--accent);margin-top:4px}
.cta-form{background:rgba(255,255,255,.98);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-lg)}
.cta-form .form-label{font-size:15px;font-weight:600;color:var(--text);margin-bottom:10px;display:block}
.input-row{display:flex;gap:10px}
.form-control{width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;font-size:15px;color:var(--text);background:#fff;transition:all var(--t)}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(43,88,214,.15)}
.form-control.is-error{border-color:var(--danger);box-shadow:0 0 0 4px rgba(229,72,77,.12)}
.form-check{display:flex;align-items:flex-start;gap:10px;margin-top:14px}
.form-check-input{width:18px;height:18px;margin-top:2px;accent-color:var(--brand);flex-shrink:0}
.form-check-label{font-size:13px;color:var(--text-2);line-height:1.6}
.form-msg{font-size:13px;margin-top:12px;min-height:20px}
.form-msg.ok{color:#007A69}
.form-msg.err{color:var(--danger)}
.cta-form .btn{width:100%;margin-top:16px}
@media(min-width:576px){.cta-form .btn{width:auto;min-width:150px;margin-top:0}.input-row{align-items:center}.input-row .form-control{flex:1}}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#8A94A6;padding:64px 0 28px;position:relative;margin-top:16px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 100%)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;color:#8A94A6;max-width:34em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#8A94A6;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#8A94A6;line-height:1.6}
.footer-contact li i{color:var(--brand-line);margin-top:4px}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#6C7793;text-align:center}
.footer-bottom p{margin:0}

/* ---------- Responsive ---------- */
@media(max-width:1200px){
  .nav-item{padding:0 11px;font-size:13px}
  .nav-item span{display:none}
  .nav-item i{font-size:16px}
  .layout-grid{grid-template-columns:240px 1fr;gap:26px}
}
@media(max-width:991px){
  h1{font-size:32px}
  h2{font-size:26px}
  h3{font-size:20px}
  .section{padding:56px 0}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-list{position:absolute;top:calc(100% + 10px);left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:8px;background:var(--dark);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-lg);margin:0}
  .nav-panel.open .nav-list{display:flex}
  .nav-item{height:46px;padding:0 14px;background:rgba(255,255,255,.06);color:#E7ECF7;border-color:transparent}
  .nav-item i{color:#9FB0D0}
  .nav-item span{display:inline}
  .nav-item:hover{background:rgba(255,255,255,.12);color:#fff;border-color:transparent}
  .nav-item.active{background:var(--brand);color:#fff}
  .nav-cta{display:none}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero{padding:24px 0 48px}
  .hero-visual{min-height:300px}
  .layout-grid{grid-template-columns:1fr}
  .anchor-card{position:relative;top:0}
  .anchor-list{flex-direction:row;overflow-x:auto;padding-bottom:4px;gap:8px}
  .anchor-link{white-space:nowrap;background:var(--bg)}
  .flow-inner{grid-template-columns:1fr;gap:18px}
  .flow-inner.reverse .flow-media{order:0}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .compare-grid{grid-template-columns:1fr}
  .cta-panel{padding:28px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:28px}
  h2{font-size:22px}
  .section{padding:48px 0}
  .logo-text{font-size:15px}
  .trust-item{flex:1 1 100%;min-width:0}
  .hero-actions .btn{width:100%}
  .stat-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:center}
  .flow-block{padding:18px}
}

/* roulang page: category3 */
:root{
  --brand:#2B58D6;
  --brand-dark:#1B3A9E;
  --brand-soft:#EAEFFC;
  --brand-line:#C7D6F7;
  --accent:#FF6A2B;
  --accent-soft:#FFF0E8;
  --ok:#00B79C;
  --warn:#F5A524;
  --danger:#E5484D;
  --bg:#F4F6FB;
  --card:#FFFFFF;
  --dark:#0F1B33;
  --text:#101828;
  --muted:#475467;
  --weak:#8A94A6;
  --line:#E4E8F0;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:12px;
  --sh-sm:0 1px 2px rgba(16,24,40,.06);
  --sh-md:0 8px 24px rgba(16,24,40,.08);
  --sh-lg:0 16px 40px rgba(16,24,40,.10);
  --sec-y:88px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text);font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:16px 0 8px;
  background:linear-gradient(180deg,rgba(244,246,251,.96) 60%,rgba(244,246,251,0));
  backdrop-filter:blur(8px);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:12px 16px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
  font-weight:700;
}
.logo:hover{color:var(--text);}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{
  font-size:17px;
  letter-spacing:.2px;
  white-space:nowrap;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:7px;
  height:44px;
  padding:0 13px;
  border-radius:var(--r-btn);
  background:#F7F9FD;
  border:1px solid transparent;
  color:var(--muted);
  font-size:14px;
  font-weight:500;
  transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.nav-item i{font-size:14px;color:var(--weak);transition:color .2s ease-out;}
.nav-item:hover{
  background:var(--brand-soft);
  color:var(--brand);
  transform:translateY(-1px);
}
.nav-item:hover i{color:var(--brand);}
.nav-item.active{
  background:var(--brand);
  color:#fff;
  box-shadow:0 6px 16px rgba(43,88,214,.24);
}
.nav-item.active i{color:#fff;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#F7F9FD;
  color:var(--muted);
  cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,88,214,.28);}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(43,88,214,.22);}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-second{background:#fff;border-color:var(--brand-line);color:var(--brand);}
.btn-second:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-ghost{background:transparent;color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,43,.24);}
.btn-accent:hover{background:#E85A1C;color:#fff;transform:translateY(-1px);}
.btn:disabled,.btn.disabled{opacity:.5;pointer-events:none;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0;}
.section-tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{font-size:32px;}
.section-head .sub{
  margin-top:10px;
  color:var(--muted);
  font-size:15px;
  max-width:640px;
}
.section-link{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
  flex:0 0 auto;
}
.section-link:hover{color:var(--brand-dark);}

.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.2px;
}
.badge-pill.accent{background:var(--accent-soft);color:#D24F14;}
.badge-pill.ok{background:rgba(0,183,156,.12);color:#00806C;}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--weak);
  margin-bottom:16px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--weak);}
.crumbs .current{color:var(--brand);font-weight:600;}

/* ---------- Hero ---------- */
.hero{padding:24px 0 0;}
.hero-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-md);
  padding:40px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:40px;
  align-items:center;
}
.hero h1{
  font-size:42px;
  letter-spacing:-.4px;
  margin-bottom:14px;
}
.hero-sub{
  font-size:17px;
  color:var(--brand);
  font-weight:600;
  margin-bottom:14px;
}
.hero-desc{
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  max-width:520px;
}
.hero-btns{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin:26px 0 22px;
}
.hero-metrics{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.hero-metrics li{
  background:#F7F9FD;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:10px 14px;
  font-size:13px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:8px;
}
.hero-metrics li i{color:var(--brand);font-size:13px;}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-lg);
  aspect-ratio:4/3.2;
}
.hero-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 30%;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:45%;
  background:linear-gradient(180deg,rgba(15,27,51,0) 0%,rgba(15,27,51,.72) 100%);
}
.hero-media .media-info{
  position:absolute;
  left:20px;
  right:20px;
  bottom:18px;
  z-index:2;
  color:#fff;
}
.hero-media .media-info strong{
  display:block;
  font-size:16px;
  font-weight:700;
  margin-bottom:4px;
}
.hero-media .media-info span{
  font-size:13px;
  color:rgba(255,255,255,.78);
}
.hero-media .media-bar{
  margin-top:10px;
  height:4px;
  border-radius:999px;
  background:rgba(255,255,255,.25);
  overflow:hidden;
}
.hero-media .media-bar i{
  display:block;
  height:100%;
  width:62%;
  border-radius:999px;
  background:var(--accent);
}

/* ---------- 速览三卡 ---------- */
.glance-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.glance-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:24px;
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.glance-card:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);}
.glance-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--brand-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand);
  font-size:18px;
  margin-bottom:16px;
}
.glance-card h3{
  font-size:19px;
  margin-bottom:10px;
}
.glance-card p{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
}
.glance-card ul{margin-top:14px;}
.glance-card ul li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:var(--muted);
  line-height:1.9;
}
.glance-card ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-line);
}

/* ---------- 时间线 ---------- */
.timeline{padding-top:8px;}
.tl-item{
  position:relative;
  padding-left:76px;
  padding-bottom:28px;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:19px;
  top:46px;
  bottom:0;
  width:2px;
  background:var(--brand-line);
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-dot{
  position:absolute;
  left:0;
  top:0;
  width:40px;
  height:40px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  box-shadow:0 8px 18px rgba(43,88,214,.24);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:22px;
  display:grid;
  grid-template-columns:200px 1fr;
  gap:22px;
  align-items:center;
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.tl-card:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);}
.tl-card img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:12px;
}
.tl-card h3{
  font-size:20px;
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.tl-card p{
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}
.tl-card .tl-tip{
  margin-top:12px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  padding:6px 12px;
}

/* ---------- 对比小结 ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.compare-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:26px;
  display:flex;
  flex-direction:column;
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.compare-card:hover{box-shadow:var(--sh-lg);transform:translateY(-4px);}
.compare-card h3{
  font-size:21px;
  margin:14px 0 10px;
}
.compare-card > p{
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}
.compare-list{margin:18px 0 22px;}
.compare-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  color:var(--muted);
  padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list li i{
  color:var(--brand);
  font-size:13px;
  margin-top:5px;
}
.compare-card .btn{align-self:flex-start;}
.summary-strip{
  margin-top:24px;
  background:var(--dark);
  color:#fff;
  border-radius:var(--r-card);
  padding:24px 28px;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.summary-strip i{
  width:44px;
  height:44px;
  border-radius:12px;
  background:rgba(255,255,255,.1);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--accent);
  font-size:18px;
  flex:0 0 auto;
}
.summary-strip p{
  font-size:15px;
  color:rgba(255,255,255,.85);
  line-height:1.8;
  flex:1 1 320px;
}

/* ---------- 注意项 ---------- */
.notice-wrap{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:32px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-md);
  padding:32px;
}
.notice-wrap img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  object-position:center 40%;
  border-radius:var(--r-card);
}
.notice-wrap h2{
  font-size:28px;
  margin:14px 0 12px;
}
.notice-wrap > div > p{
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.notice-list{margin-top:20px;}
.notice-list li{
  display:flex;
  gap:12px;
  padding:12px 0;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
}
.notice-list li:first-child{border-top:0;}
.notice-list li span.num{
  flex:0 0 auto;
  width:24px;
  height:24px;
  border-radius:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:2px;
}

/* ---------- FAQ ---------- */
.faq-list{
  display:grid;
  gap:14px;
  max-width:900px;
  margin:0 auto;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  overflow:hidden;
  transition:box-shadow .2s ease-out;
}
.faq-item:hover{box-shadow:var(--sh-md);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  background:transparent;
  border:0;
  padding:20px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  transition:box-shadow .2s ease-out,color .2s ease-out;
}
.faq-q:hover{color:var(--brand);}
.faq-q:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,88,214,.28);}
.faq-q[aria-expanded="true"]{
  color:var(--brand);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-icon{
  flex:0 0 auto;
  width:28px;
  height:28px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  transition:transform .2s ease-out,background-color .2s ease-out,color .2s ease-out;
}
.faq-q[aria-expanded="true"] .faq-icon{
  transform:rotate(45deg);
  background:var(--brand);
  color:#fff;
}
.faq-a{
  padding:0 22px 22px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  max-width:100%;
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background-image:linear-gradient(120deg,rgba(15,27,51,.92) 0%,rgba(15,27,51,.78) 55%,rgba(27,58,158,.78) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:48px;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:40px;
  align-items:center;
  box-shadow:var(--sh-lg);
}
.cta-panel h2{
  color:#fff;
  font-size:30px;
  margin-bottom:14px;
}
.cta-panel p{
  color:rgba(255,255,255,.82);
  font-size:15px;
  line-height:1.85;
  max-width:520px;
}
.cta-points{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:22px;
}
.cta-points li{
  font-size:13px;
  color:rgba(255,255,255,.85);
  background:rgba(255,255,255,.1);
  border-radius:999px;
  padding:7px 14px;
  display:flex;
  align-items:center;
  gap:7px;
}
.cta-points li i{color:var(--accent);}
.form-card{
  background:rgba(255,255,255,.97);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-lg);
  color:var(--text);
}
.form-card h3{
  font-size:19px;
  margin-bottom:8px;
}
.form-card .form-tip{
  font-size:13px;
  color:var(--weak);
  margin-bottom:18px;
}
.form-field{margin-bottom:14px;}
.form-field label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:8px;
  font-weight:600;
}
.form-input{
  width:100%;
  height:48px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  padding:0 14px;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.form-input::placeholder{color:var(--weak);}
.form-input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(43,88,214,.15);
}
.form-input.is-error{
  border-color:var(--danger);
  box-shadow:0 0 0 4px rgba(229,72,77,.12);
}
.form-error{
  display:none;
  color:var(--danger);
  font-size:14px;
  margin-top:8px;
}
.form-error.show{display:block;}
.form-check{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  margin:6px 0 16px;
}
.form-check input{
  appearance:none;
  width:20px;
  height:20px;
  border-radius:6px;
  border:1px solid var(--line);
  background:#fff;
  flex:0 0 auto;
  margin-top:1px;
  cursor:pointer;
  position:relative;
  transition:background-color .2s ease-out,border-color .2s ease-out;
}
.form-check input:checked{background:var(--brand);border-color:var(--brand);}
.form-check input:checked::after{
  content:"";
  position:absolute;
  left:6px;
  top:3px;
  width:6px;
  height:10px;
  border:2px solid #fff;
  border-top:0;
  border-left:0;
  transform:rotate(45deg);
}
.form-check input:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(43,88,214,.28);}
.form-card .btn{width:100%;}
.form-note{
  display:none;
  margin-top:14px;
  font-size:13px;
  color:#00806C;
  background:rgba(0,183,156,.1);
  border-radius:var(--r-btn);
  padding:10px 14px;
}
.form-note.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:#fff;
  margin-top:96px;
  padding:64px 0 28px;
  background-image:linear-gradient(180deg,rgba(15,27,51,.98) 0%,rgba(15,27,51,1) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-desc{
  color:var(--weak);
  font-size:14px;
  line-height:1.9;
  max-width:340px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
  color:var(--weak);
  font-size:14px;
}
.footer-col ul li a:hover{color:#fff;}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--weak);
  font-size:14px;
  line-height:1.7;
}
.footer-contact li i{
  color:var(--brand-line);
  font-size:13px;
  margin-top:5px;
}
.footer-bottom{
  padding-top:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.footer-bottom p{
  color:var(--weak);
  font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero h1{font-size:36px;}
  .section-head h2{font-size:28px;}
}
@media (max-width:991.98px){
  :root{--sec-y:64px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-list{
    position:absolute;
    top:calc(100% + 12px);
    left:24px;
    right:24px;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    background:var(--dark);
    border-radius:var(--r-card);
    padding:16px;
    box-shadow:var(--sh-lg);
    display:none;
    margin-left:0;
  }
  .nav-list.open{display:flex;}
  .nav-item{
    background:rgba(255,255,255,.06);
    color:#E7ECF7;
    height:48px;
  }
  .nav-item i{color:var(--brand-line);}
  .nav-item:hover{background:rgba(43,88,214,.35);color:#fff;}
  .nav-item.active{background:var(--brand);color:#fff;}
  .nav-actions{margin-left:auto;}
  .nav-panel{position:relative;}
  .hero-card{grid-template-columns:1fr;padding:28px;}
  .hero-media{max-width:460px;}
  .glance-grid{grid-template-columns:1fr 1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .notice-wrap{grid-template-columns:1fr;padding:24px;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .section-head{flex-direction:column;align-items:flex-start;}
  .tl-card{grid-template-columns:1fr;}
  .tl-card img{aspect-ratio:16/9;}
  .hero h1{font-size:30px;}
  .section-head h2{font-size:24px;}
  .cta-panel h2{font-size:24px;}
  .notice-wrap h2{font-size:23px;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  :root{--sec-y:52px;}
  .glance-grid{grid-template-columns:1fr;}
  .nav-list{left:16px;right:16px;}
  .hero-card{padding:22px;}
  .hero-btns .btn{width:100%;}
  .tl-item{padding-left:0;padding-bottom:22px;}
  .tl-item::before{display:none;}
  .tl-dot{position:static;margin-bottom:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .summary-strip{padding:20px;}
  .cta-panel{padding:24px;}
}

/* roulang page: category4 */
:root{
  --brand:#2B58D6;
  --brand-deep:#1B3A9E;
  --brand-soft:#EAEFFC;
  --brand-line:#C7D6F7;
  --accent:#FF6A2B;
  --accent-soft:#FFF0E8;
  --ok:#00B79C;
  --warn:#F5A524;
  --err:#E5484D;
  --bg:#F4F6FB;
  --card:#FFFFFF;
  --dark:#0F1B33;
  --dark-2:#16233F;
  --text:#101828;
  --text-2:#475467;
  --text-3:#8A94A6;
  --line:#E4E8F0;
  --r-card:16px;
  --r-hero:20px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,24,40,.06);
  --sh-md:0 8px 24px rgba(16,24,40,.08);
  --sh-lg:0 16px 40px rgba(16,24,40,.10);
  --t:200ms ease-out;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--text);letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(43,88,214,.28);outline-offset:2px;border-radius:8px}
.container,.container-fluid{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  padding:16px 0;
  background:rgba(244,246,251,.92);
  backdrop-filter:blur(10px);
}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-md);
  padding:10px 16px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 6px 16px rgba(43,88,214,.28);
  flex:0 0 auto;
}
.logo-mark svg{width:22px;height:22px;display:block}
.logo-text{font-weight:700;font-size:17px;color:var(--text);white-space:nowrap}

.nav-list{display:flex;align-items:center;gap:6px;margin:0 0 0 6px;flex:1 1 auto;min-width:0}
.nav-item{
  display:inline-flex;align-items:center;gap:6px;
  height:44px;padding:0 13px;border-radius:12px;
  font-size:14px;font-weight:500;color:var(--text-2);
  background:#F7F9FD;border:1px solid transparent;
  transition:all var(--t);white-space:nowrap;
}
.nav-item i{font-size:13px;color:var(--text-3);transition:color var(--t)}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line)}
.nav-item:hover i{color:var(--brand)}
.nav-item.active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 6px 16px rgba(43,88,214,.25)}
.nav-item.active i{color:#fff}

.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.nav-list-cta{display:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;text-align:center;
  transition:all var(--t);
}
.btn:disabled,.btn.disabled{opacity:.5;pointer-events:none;transform:none}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(43,88,214,.24)}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line);box-shadow:var(--sh-sm)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,43,.24)}
.btn-accent:hover{background:#E85A1C;color:#fff;transform:translateY(-1px)}
.btn-onDark{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.20)}
.btn-onDark:hover{background:rgba(255,255,255,.18);color:#fff}
.btn-lg{height:52px;padding:0 26px;font-size:16px;border-radius:14px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text);
  font-size:16px;cursor:pointer;transition:all var(--t);
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand)}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(15,27,51,.48);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:1100;
}
.nav-backdrop.show{opacity:1;visibility:visible}

/* ---------- generic ---------- */
.section{padding:56px 0}
.section-tight{padding:36px 0}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-hero);
  box-shadow:var(--sh-md);padding:40px;
}
.section-head{max-width:720px;margin-bottom:28px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:14px;
}
.eyebrow.onDark{background:rgba(255,255,255,.10);color:#CFE0FF}
h2.section-title{font-size:32px;margin-bottom:12px}
.section-sub{font-size:16px;color:var(--text-2);line-height:1.75;max-width:62ch}

.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:11px;color:var(--text-3)}
.crumb span{color:var(--text);font-weight:600}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;
}
.tag.accent{background:var(--accent-soft);color:#D9531C}
.tag.ok{background:rgba(0,183,156,.12);color:#00836F}

/* ---------- hero ---------- */
.hero{padding:12px 0 24px}
.hero-card{
  position:relative;overflow:hidden;
  background:var(--dark);
  border-radius:24px;
  padding:52px;
  display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;
  box-shadow:var(--sh-lg);
}
.hero-card::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.22;
}
.hero-card::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,88,214,.55),rgba(43,88,214,0) 68%);
}
.hero-card > *{position:relative;z-index:1}
.hero h1{font-size:42px;color:#fff;margin:14px 0 16px;letter-spacing:-.8px}
.hero-lead{font-size:17px;color:#B9C6DD;line-height:1.8;max-width:40ch}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.trust-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:#D5DEEC;font-size:13px;font-weight:500;
}
.trust-item i{color:var(--accent);font-size:12px}
.hero-visual{
  position:relative;border-radius:var(--r-hero);overflow:hidden;box-shadow:var(--sh-lg);
  aspect-ratio:4/3;background:#1B2A4A;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;object-position:center 38%}
.hero-visual .visual-bar{
  position:absolute;left:14px;right:14px;bottom:14px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-radius:14px;
  background:rgba(15,27,51,.74);backdrop-filter:blur(6px);
  color:#fff;font-size:13px;
}
.visual-bar .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(0,183,156,.20);display:inline-block;margin-right:8px}
.visual-bar strong{font-size:14px}

/* ---------- matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:8px}
.matrix-card{
  background:#F8FAFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;transition:transform var(--t),box-shadow var(--t),border-color var(--t),background var(--t);
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--brand-line);background:#fff}
.matrix-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.matrix-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.matrix-card h3{font-size:19px}
.matrix-card p{font-size:15px;color:var(--text-2);line-height:1.8}
.matrix-card ul{margin-top:14px;display:grid;gap:8px}
.matrix-card li{display:flex;gap:9px;font-size:14px;color:var(--text-2);line-height:1.7}
.matrix-card li i{color:var(--ok);font-size:12px;margin-top:6px;flex:0 0 auto}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.compare-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:30px;box-shadow:var(--sh-md);display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.compare-card.dark{background:var(--dark);border-color:#1E2E50}
.compare-card.dark h3,.compare-card.dark .compare-num{color:#fff}
.compare-card.dark p{color:#A9B7CF}
.compare-card.dark li{color:#C3CEE0}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.compare-num{font-size:34px;font-weight:800;color:var(--brand-soft);line-height:1;letter-spacing:-1px}
.compare-card h3{font-size:22px;margin-bottom:10px}
.compare-card p{font-size:15px;color:var(--text-2);line-height:1.8}
.compare-list{margin:20px 0 24px;display:grid;gap:12px}
.compare-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7}
.compare-list li i{color:var(--brand);font-size:13px;margin-top:5px;flex:0 0 auto}
.compare-card.dark .compare-list li i{color:var(--accent)}
.compare-card .btn{align-self:flex-start;margin-top:auto}

/* ---------- spec table ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;box-shadow:var(--sh-sm);
}
.spec-table{width:100%;border-collapse:collapse;min-width:680px}
.spec-table th{
  text-align:left;font-size:13px;font-weight:600;color:var(--text-3);
  letter-spacing:.05em;padding:14px 20px;background:#F8FAFF;white-space:nowrap;
}
.spec-table td{
  padding:18px 20px;border-top:1px solid var(--line);
  font-size:15px;color:var(--text-2);vertical-align:top;
}
.spec-table td:first-child{color:var(--text);font-weight:600}
.spec-table tbody tr:hover td{background:#FAFBFE}
.spec-note{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- support ---------- */
.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.support-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--brand-line)}
.support-card .sc-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--accent-soft);color:#D9531C;font-size:16px;margin-bottom:16px;
}
.support-card h3{font-size:17px;margin-bottom:8px}
.support-card p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--sh-sm);overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.faq-item:hover{border-color:var(--brand-line)}
.faq-item[open]{box-shadow:var(--sh-md)}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform var(--t);
}
.faq-item[open]::before{transform:scaleY(1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary i{color:var(--brand);font-size:14px;flex:0 0 auto;transition:transform var(--t)}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.9}

/* ---------- cta ---------- */
.cta-card{
  position:relative;overflow:hidden;background:var(--dark);
  border-radius:24px;padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  box-shadow:var(--sh-lg);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity:.18;
}
.cta-card::after{
  content:"";position:absolute;left:-140px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.32),rgba(255,106,43,0) 70%);
}
.cta-card > *{position:relative;z-index:1}
.cta-card h2{font-size:30px;color:#fff;margin-bottom:14px}
.cta-card p{font-size:16px;color:#AEBBD2;line-height:1.85;max-width:44ch}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;color:#C8D3E5;font-size:15px}
.cta-points li i{color:var(--accent);font-size:12px;margin-top:6px}

.form-card{background:#fff;border-radius:18px;padding:30px;box-shadow:var(--sh-lg)}
.form-card h3{font-size:20px;margin-bottom:8px}
.form-card .form-hint{font-size:14px;color:var(--text-3);line-height:1.7;margin-bottom:20px}
.form-input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--text);font-size:15px;
  transition:border-color var(--t),box-shadow var(--t);
}
.form-input::placeholder{color:var(--text-3)}
.form-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(43,88,214,.15)}
.form-input.is-error{border-color:var(--err);box-shadow:0 0 0 4px rgba(229,72,77,.12)}
.form-error{display:none;margin-top:8px;font-size:14px;color:var(--err)}
.form-error.show{display:block}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13px;color:var(--text-2);line-height:1.7}
.checkbox-row input[type="checkbox"]{width:18px;height:18px;margin-top:2px;accent-color:var(--brand);flex:0 0 auto}
.form-card .btn{width:100%;margin-top:18px}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:12px;
  background:rgba(0,183,156,.10);color:#00836F;font-size:14px;line-height:1.7;
}
.form-success.show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#B7C2D6;margin-top:72px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:32px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-logo .logo-mark{width:34px;height:34px;border-radius:10px}
.footer-logo .logo-mark svg{width:20px;height:20px}
.footer-desc{font-size:14px;line-height:1.85;color:#8A94A6;max-width:36ch}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.2px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{color:#8A94A6;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#8A94A6;line-height:1.7;margin-bottom:12px}
.footer-contact li i{color:#5F7A9E;margin-top:4px;font-size:13px;flex:0 0 auto}
.footer-bottom{
  margin-top:48px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#7A87A0;
}
.footer-bottom p{margin:0}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .nav-item{padding:0 10px;font-size:13px}
  .logo-text{font-size:16px}
  .hero-card{padding:44px}
  .hero h1{font-size:38px}
}
@media (max-width:992px){
  .nav-toggle{display:inline-flex}
  .nav-list{
    position:fixed;top:0;right:0;width:min(330px,88vw);height:100vh;
    margin:0;padding:88px 20px 28px;gap:10px;
    flex-direction:column;align-items:stretch;flex:0 0 auto;
    background:var(--dark);border-left:1px solid rgba(255,255,255,.08);
    transform:translateX(104%);transition:transform 280ms cubic-bezier(.4,0,.2,1);
    z-index:1200;overflow-y:auto;
  }
  .nav-list.open{transform:translateX(0)}
  .nav-item{
    height:50px;font-size:15px;background:rgba(255,255,255,.06);
    color:#D2DBEA;border-color:rgba(255,255,255,.06);width:100%;
  }
  .nav-item i{color:#8FA3C4;font-size:14px}
  .nav-item:hover{background:rgba(43,88,214,.35);color:#fff}
  .nav-item.active{background:var(--brand);color:#fff;border-color:var(--brand)}
  .nav-list-cta{display:block;margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.10)}
  .nav-list-cta .btn{width:100%}
  .nav-cta{display:none}
  .hero-card{grid-template-columns:1fr;gap:32px;padding:36px}
  .hero h1{font-size:32px}
  .hero-lead{max-width:none}
  .hero-visual{aspect-ratio:16/10;max-width:560px}
  .panel{padding:30px}
  h2.section-title{font-size:26px}
  .support-grid{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;gap:36px;padding:36px}
  .cta-card h2{font-size:26px}
  .cta-card p{max-width:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .section{padding:44px 0}
  .container,.container-fluid{padding-left:18px;padding-right:18px}
  .matrix-grid{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .hero-card{padding:28px;border-radius:20px}
  .hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .hero-btns .btn{flex:1 1 100%}
  .panel{padding:24px;border-radius:18px}
  .form-card{padding:24px}
  .compare-card{padding:24px}
  h2.section-title{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:520px){
  .hero h1{font-size:24px;letter-spacing:-.3px}
  .hero-trust{gap:8px}
  .trust-item{font-size:12px;padding:7px 12px}
  .support-grid{grid-template-columns:1fr}
  .matrix-card{padding:22px}
  .faq-item summary{font-size:16px;padding:18px}
  .faq-body{padding:0 18px 18px}
  .cta-card{padding:26px}
}