/* roulang page: index */
:root{
  --c-primary:#6C4BF4;
  --c-primary-dark:#4A2FD1;
  --c-accent:#B6F24A;
  --c-warm:#FF6A3D;
  --c-ink:#0F1220;
  --c-ink-2:#1A1E33;
  --c-bg:#F6F7FB;
  --c-card:#FFFFFF;
  --c-line:#E4E7F0;
  --c-line-dark:rgba(255,255,255,.10);
  --t-main:#14172A;
  --t-sub:#5B6279;
  --t-inv:#F2F4FF;
  --t-inv-sub:#A8AEC7;
  --r-card:16px;
  --r-card-lg:18px;
  --r-btn:12px;
  --shadow-1:0 6px 20px rgba(16,20,45,.06);
  --shadow-2:0 14px 34px rgba(16,20,45,.12);
  --ease:.25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--t-main);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease);}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-ink-2);color:var(--t-inv-sub);font-size:13px;height:32px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap;}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent);flex:none;box-shadow:0 0 0 4px rgba(182,242,74,.14);}
.topbar-sep{color:rgba(255,255,255,.24);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-ink);
  border-bottom:1px solid var(--c-line-dark);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.scrolled{background:rgba(15,18,32,.94);box-shadow:0 10px 30px rgba(8,10,22,.35);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 6px 18px rgba(108,75,244,.35);
}
.brand-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.brand-text em{font-style:normal;color:var(--c-accent);}
.nav-pill{
  display:flex;align-items:center;gap:2px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.06);
  border-radius:999px;padding:4px;
}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 16px;border-radius:999px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.72);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:5px;height:2px;
  background:var(--c-accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:#fff;background:rgba(108,75,244,.22);}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);color:#fff;font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:rgba(108,75,244,.28);border-color:rgba(108,75,244,.6);}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);color:#fff;font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.burger:hover{background:rgba(108,75,244,.28);}

/* ---------- 按钮 ---------- */
.btn-main,.btn-line,.btn-line-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;
  padding:12px 24px;border:1.5px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:0 8px 22px rgba(108,75,244,.28);}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px rgba(74,47,209,.34);}
.btn-main:active{transform:translateY(0);}
.btn-line{background:transparent;border-color:rgba(108,75,244,.28);color:var(--c-primary);}
.btn-line:hover{background:rgba(108,75,244,.08);color:var(--c-primary-dark);border-color:rgba(108,75,244,.5);}
.btn-line-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-line-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--c-ink);color:var(--t-inv);overflow:hidden;padding:88px 0 96px;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(15,18,32,.95) 0%,rgba(15,18,32,.78) 52%,rgba(15,18,32,.9) 100%),
    url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero .container{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:500;
  background:rgba(182,242,74,.12);color:var(--c-accent);border:1px solid rgba(182,242,74,.28);
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(28px,4.2vw,52px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
  color:#fff;margin-bottom:18px;
}
.hero h1 span{color:var(--c-accent);}
.hero-sub{font-size:clamp(16px,1.5vw,19px);line-height:1.7;color:rgba(255,255,255,.78);max-width:560px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:42px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:44px;}
.metric-num{font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;font-size:24px;font-weight:800;color:var(--c-accent);line-height:1.2;}
.metric-label{font-size:13px;color:var(--t-inv-sub);}
.hero-visual{position:relative;}
.hero-shot{
  aspect-ratio:16/10;border-radius:var(--r-card-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 24px 60px rgba(6,8,20,.55);
  position:relative;
}
.hero-shot img{width:100%;height:100%;object-fit:cover;}
.hero-corner{
  position:absolute;top:14px;left:14px;
  background:var(--c-accent);color:#131A05;font-size:12px;font-weight:800;
  padding:4px 10px;border-radius:999px;letter-spacing:.02em;
}
.hero-note{
  margin-top:16px;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--t-inv-sub);
}
.hero-note i{color:var(--c-accent);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:#fff;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.section-title{font-size:clamp(22px,2.6vw,34px);font-weight:700;color:var(--t-main);margin-bottom:14px;letter-spacing:-.015em;}
.section-desc{color:var(--t-sub);font-size:16px;max-width:620px;}
.sticky-block{position:sticky;top:104px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--c-primary);}
.link-arrow span{transition:transform var(--ease);display:inline-block;}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- 能力列表 ---------- */
.svc-list{border-top:1px solid var(--c-line);}
.svc-item{
  display:flex;gap:22px;align-items:flex-start;
  padding:24px 14px;border-bottom:1px solid var(--c-line);
  transition:background var(--ease),transform var(--ease);
}
.svc-item:hover{background:rgba(108,75,244,.05);transform:translateX(4px);}
.svc-index{
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:15px;font-weight:800;color:var(--c-primary);
  padding-top:3px;flex:none;width:34px;
}
.svc-body h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.svc-body p{font-size:15px;color:var(--t-sub);margin:0;}

/* ---------- 数据区 ---------- */
.stats{position:relative;background:var(--c-ink);color:var(--t-inv);padding:84px 0;overflow:hidden;}
.stats::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:52px 52px;
}
.stats .container{position:relative;z-index:2;}
.stats-head{margin-bottom:48px;}
.stats-head h2{color:#fff;font-size:clamp(22px,2.6vw,34px);}
.stats-head p{color:var(--t-inv-sub);margin-top:12px;max-width:600px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:6px 28px;border-left:1px solid var(--c-line-dark);}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;font-size:clamp(30px,4vw,46px);font-weight:800;color:#fff;line-height:1.1;}
.stat-num em{font-style:normal;color:var(--c-accent);font-size:.55em;margin-left:4px;}
.stat-label{font-size:14px;color:var(--t-inv-sub);margin-top:10px;}
.stats-foot{
  margin-top:54px;padding-left:16px;border-left:3px solid var(--c-accent);
  color:rgba(255,255,255,.8);font-size:15px;
}

/* ---------- 案例区 ---------- */
.case-row{align-items:center;margin-bottom:72px;}
.case-row:last-child{margin-bottom:0;}
.case-media{
  aspect-ratio:16/10;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);
}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.4,0,.2,1);}
.case-row:hover .case-media img{transform:scale(1.04);}
.case-tag{
  display:inline-block;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(108,75,244,.1);color:var(--c-primary);margin-bottom:14px;
}
.case-body h3{font-size:clamp(19px,2vw,24px);margin-bottom:12px;}
.case-body p{color:var(--t-sub);font-size:15px;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;
  border-top:2px dashed var(--c-line);z-index:0;
}
.step{position:relative;z-index:1;}
.step-num{
  width:52px;height:52px;border-radius:50%;
  border:2px solid var(--c-primary);background:#fff;color:var(--c-primary);
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.step:hover .step-num{background:var(--c-primary);color:#fff;transform:translateY(-3px);}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--t-sub);margin:0;}

/* ---------- 最新信息 ---------- */
.news-toolbar{display:flex;flex-wrap:wrap;gap:18px;align-items:flex-end;justify-content:space-between;margin-bottom:34px;}
.news-tools{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.news-search{
  height:46px;min-width:240px;padding:0 16px;font-size:14px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--t-main);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.news-search::placeholder{color:#9AA0B6;}
.news-search:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,75,244,.12);}
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(108,75,244,.4);}
.thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:#EEF0F7;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.4,0,.2,1);}
.news-card:hover .thumb img{transform:scale(1.04);}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.badge-cat{
  display:inline-block;align-self:flex-start;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;margin-bottom:12px;letter-spacing:.02em;
}
.badge-purple{background:rgba(108,75,244,.1);color:var(--c-primary);}
.badge-lime{background:rgba(182,242,74,.22);color:#3E5A0A;}
.badge-coral{background:rgba(255,106,61,.12);color:#C43C13;}
.news-title{font-size:17px;line-height:1.5;margin-bottom:10px;}
.news-title a{color:var(--t-main);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--c-primary);}
.news-desc{
  font-size:14px;color:var(--t-sub);line-height:1.7;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:#8A90A6;
}
.news-foot .go{color:var(--c-primary);font-weight:700;transition:transform var(--ease);}
.news-card:hover .news-foot .go{transform:translateX(4px);}
.news-empty{
  border:1px dashed var(--c-line);border-radius:var(--r-card);background:#fff;
  padding:48px 24px;text-align:center;
}
.news-empty i{font-size:40px;color:#C6CADA;display:block;margin-bottom:16px;}
.news-empty strong{display:block;font-size:16px;margin-bottom:8px;}
.news-empty span{font-size:13px;color:var(--t-sub);display:block;margin-bottom:20px;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--c-line);}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{
  background:transparent;border:0;box-shadow:none;
  font-size:17px;font-weight:700;color:var(--t-main);
  padding:22px 0;width:100%;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  transition:color var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;font-size:22px;font-weight:400;color:var(--c-primary);
  width:26px;height:26px;line-height:1;display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform var(--ease);flex:none;margin:0;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-acc .accordion-body{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--t-sub);}

/* ---------- 联系 / 表单 ---------- */
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--c-line);}
.contact-item:last-child{border-bottom:0;}
.contact-ico{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:rgba(108,75,244,.1);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.contact-item h3{font-size:15px;margin-bottom:4px;}
.contact-item p{font-size:14px;color:var(--t-sub);margin:0;}
.form-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card-lg);
  padding:28px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--t-main);}
.field .form-control,.field .form-select{
  width:100%;height:46px;padding:0 14px;font-size:15px;color:var(--t-main);
  border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea.form-control{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field .form-control:focus,.field .form-select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,75,244,.12);
}
.field .form-control::placeholder{color:#9AA0B6;}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--t-sub);margin-bottom:20px;}
.check-row input{margin-top:5px;width:16px;height:16px;accent-color:var(--c-primary);flex:none;}
.form-hint{font-size:13px;color:var(--t-sub);margin-top:14px;text-align:center;}

/* ---------- 移动抽屉 ---------- */
.mobile-nav{background:var(--c-ink);color:#fff;width:82vw;max-width:340px;border-left:1px solid var(--c-line-dark);}
.mobile-nav .offcanvas-header{
  padding:18px 20px;border-bottom:1px solid var(--c-line-dark);
  display:flex;align-items:center;justify-content:space-between;
}
.mobile-nav .offcanvas-body{padding:14px 16px 26px;}
.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;
  font-size:15px;color:rgba(255,255,255,.78);
}
.m-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.m-link.active{background:rgba(108,75,244,.22);color:#fff;font-weight:700;}
.m-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line-dark);font-size:13px;color:var(--t-inv-sub);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--t-inv);padding:72px 0 0;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--t-inv-sub);max-width:280px;margin-bottom:20px;}
.footer-cta{display:flex;flex-wrap:wrap;gap:10px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-list li{margin-bottom:12px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.66);display:inline-block;}
.footer-list a:hover{color:#fff;transform:translateX(2px);}
.footer-info li{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:12px;}
.footer-info strong{color:rgba(255,255,255,.9);font-weight:500;}
.footer-bottom{
  margin-top:56px;padding:24px 0;border-top:1px solid var(--c-line-dark);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px){
  .burger{display:none;}
}
@media (max-width:991.98px){
  .nav-pill{display:none;}
  .sticky-block{position:static;}
  .section{padding:72px 0;}
  .hero{padding:64px 0 72px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:36px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:36px;}
  .steps::before{display:none;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:52px 0 60px;}
  .hero-metrics{gap:28px;}
  .hero-cta .btn-main,.hero-cta .btn-line-light{width:100%;}
  .stats{padding:60px 0;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat{padding:0 16px;}
  .stat-num{font-size:30px;}
  .steps{grid-template-columns:1fr;}
  .case-row{margin-bottom:48px;}
  .topbar-hide-sm{display:none;}
  .news-search{min-width:100%;width:100%;}
  .news-tools{width:100%;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .hero-metrics{flex-direction:column;gap:18px;}
  .brand-text{font-size:16px;}
}

/* roulang page: article */
:root{
  --c-primary:#6C4BF4;
  --c-primary-dark:#4A2FD1;
  --c-accent:#B6F24A;
  --c-warm:#FF6A3D;
  --c-ink:#0F1220;
  --c-ink-2:#1A1E33;
  --c-bg:#F6F7FB;
  --c-card:#FFFFFF;
  --c-line:#E4E7F0;
  --c-line-dark:rgba(255,255,255,.10);
  --t-main:#14172A;
  --t-sub:#5B6279;
  --t-inv:#F2F4FF;
  --t-inv-sub:#A8AEC7;
  --r-card:16px;
  --r-dark:18px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 6px 20px rgba(16,20,45,.06);
  --sh-2:0 14px 34px rgba(16,20,45,.12);
  --tr:.25s cubic-bezier(.4,0,.2,1);
  --font-sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{
  margin:0;padding:0;
  font-family:var(--font-sans);
  font-size:16px;line-height:1.75;
  color:var(--t-main);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:var(--tr)}
a:hover{color:var(--c-primary-dark)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container,.container-fluid{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}
::selection{background:rgba(108,75,244,.18)}

/* ============ 顶部信息条 ============ */
.topbar{background:#0A0C16;border-bottom:1px solid rgba(255,255,255,.06);color:var(--t-inv-sub);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:34px}
.topbar-inner .tb-left{display:inline-flex;align-items:center;gap:8px}
.topbar-inner .tb-left i{color:var(--c-accent);font-size:11px}
.topbar-right{color:rgba(255,255,255,.5)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-ink);
  border-bottom:1px solid var(--c-line-dark);
  transition:background var(--tr),box-shadow var(--tr);
}
.site-header.is-scrolled{background:rgba(15,18,32,.94);box-shadow:0 10px 30px rgba(0,0,0,.28)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  position:relative;width:34px;height:34px;border-radius:10px;
  background:var(--c-primary);color:#fff;font-weight:800;font-size:17px;
  display:grid;place-items:center;line-height:1;
  box-shadow:inset 0 0 0 1px rgba(182,242,74,.35);
}
.brand-mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:10px;height:10px;border-radius:3px;background:var(--c-accent)}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-accent)}
.nav-pill{display:flex;align-items:center;gap:2px;background:rgba(255,255,255,.06);border-radius:999px;padding:4px}
.nav-pill .nav-link{
  display:inline-block;padding:8px 16px;border-radius:999px;
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  position:relative;white-space:nowrap;transition:var(--tr);
}
.nav-pill .nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-pill .nav-link.active{color:#fff}
.nav-pill .nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:0;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.82);
  display:grid;place-items:center;font-size:15px;cursor:pointer;transition:var(--tr);
}
.icon-btn:hover{background:rgba(255,255,255,.16);color:#fff}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:0;
  background:rgba(255,255,255,.08);color:#fff;font-size:17px;
  display:none;place-items:center;cursor:pointer;
}
.nav-toggle:hover{background:rgba(255,255,255,.16)}

/* 按钮 */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-primary);color:#fff!important;border:0;
  border-radius:var(--r-btn);padding:12px 24px;
  font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;
  transition:var(--tr);
}
.btn-main:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2);color:#fff}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--c-primary)!important;
  border:1.5px solid rgba(108,75,244,.28);border-radius:var(--r-btn);
  padding:11px 22px;font-size:15px;font-weight:700;cursor:pointer;transition:var(--tr);
}
.btn-line:hover{background:rgba(108,75,244,.08);border-color:rgba(108,75,244,.5);color:var(--c-primary-dark)!important}
.btn-line-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:#fff!important;
  border:1.5px solid rgba(255,255,255,.28);border-radius:var(--r-btn);
  padding:9px 18px;font-size:14px;font-weight:700;cursor:pointer;transition:var(--tr);
}
.btn-line-light:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);color:#fff!important}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14.5px;color:var(--c-primary)}
.link-arrow i{transition:transform var(--tr)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 文章横幅 ============ */
.page-band{background:#fff;border-bottom:1px solid var(--c-line);padding:22px 0 40px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:0;padding:0;background:none;font-size:13px;color:var(--t-sub)}
.breadcrumb a{color:var(--t-sub)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C3C8D6}
.breadcrumb .current{color:var(--t-main);font-weight:600;max-width:620px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.band-title-wrap{max-width:900px;margin:26px auto 0;text-align:center}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(108,75,244,.10);border:1px solid rgba(108,75,244,.22);
  color:var(--c-primary-dark);border-radius:999px;padding:5px 14px;
  font-size:13px;font-weight:700;
}
.article-h1{
  font-size:clamp(26px,3.4vw,42px);font-weight:800;line-height:1.28;
  letter-spacing:-.02em;margin:18px 0 0;color:var(--t-main);
}
.meta-row{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 22px;margin-top:18px;font-size:13px;color:var(--t-sub)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-accent);display:inline-block}
.meta-item time{color:var(--t-sub)}
.meta-item strong{font-weight:600;color:var(--t-main)}

/* ============ 正文区 ============ */
.article-main{padding:52px 0 24px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
.article-col{min-width:0}
.prose{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:38px 40px;overflow-wrap:break-word;
}
.prose>*:first-child{margin-top:0}
.prose p{font-size:16.5px;line-height:1.9;color:#252A45;margin:0 0 1.1em}
.prose h2{
  font-size:clamp(21px,2.3vw,27px);font-weight:800;line-height:1.4;
  margin:1.9em 0 .8em;padding-left:14px;border-left:4px solid var(--c-primary);
}
.prose h3{font-size:19px;font-weight:700;line-height:1.5;margin:1.6em 0 .6em;color:var(--t-main)}
.prose h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.35em}
.prose li{margin-bottom:.5em;line-height:1.85;color:#252A45}
.prose ul{list-style:none;padding-left:0}
.prose ul>li{position:relative;padding-left:18px}
.prose ul>li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--c-primary);
}
.prose ol li::marker{color:var(--c-primary);font-weight:700}
.prose blockquote{
  margin:1.5em 0;padding:18px 22px;background:#F3F1FE;
  border-left:4px solid var(--c-primary);border-radius:0 12px 12px 0;
  color:#3A3560;font-size:16px;line-height:1.85;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--r-img);border:1px solid var(--c-line);margin:1.6em 0}
.prose figure{margin:1.6em 0}
.prose figcaption{font-size:13px;color:var(--t-sub);text-align:center;margin-top:10px}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;line-height:1.7}
.prose th{background:#F3F4FA;font-weight:700;white-space:nowrap}
.prose code{
  font-family:var(--font-mono);font-size:.88em;
  background:#F1F2F8;color:var(--c-primary-dark);
  padding:2px 6px;border-radius:6px;
}
.prose pre{
  background:#F4F5FA;border:1px solid var(--c-line);border-radius:12px;
  padding:16px 18px;overflow-x:auto;font-family:var(--font-mono);
  font-size:14px;line-height:1.7;margin:1.5em 0;
}
.prose pre code{background:none;padding:0;color:#252A45}
.prose a{color:var(--c-primary);border-bottom:1px solid rgba(108,75,244,.32)}
.prose a:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary-dark)}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0}

.empty-state{
  background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-icon{font-size:38px;color:#C3C8D6;margin-bottom:14px}
.empty-state h2{font-size:22px;font-weight:800;margin:0 0 10px}
.empty-state p{font-size:15px;color:var(--t-sub);margin:0 auto 22px;max-width:420px;line-height:1.8}

/* ============ 右侧栏 ============ */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card h3{
  display:flex;align-items:center;gap:9px;
  font-size:15px;font-weight:800;margin:0 0 14px;color:var(--t-main);
}
.side-card h3::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--c-primary)}
.toc-list{list-style:none;margin:0;padding:0;max-height:300px;overflow-y:auto}
.toc-list li{margin:0}
.toc-list a{
  display:block;font-size:14px;line-height:1.55;color:var(--t-sub);
  padding:7px 10px 7px 12px;border-left:2px solid var(--c-line);
  transition:var(--tr);
}
.toc-list a.lvl-3{padding-left:26px;font-size:13.4px}
.toc-list a:hover,.toc-list a.is-active{
  color:var(--c-primary);border-left-color:var(--c-primary);
  background:rgba(108,75,244,.05);
}
.mini-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:13px}
.mini-list a{display:flex;gap:10px;align-items:flex-start;color:var(--t-main);font-size:14.5px;font-weight:500;line-height:1.55}
.mini-list a:hover{color:var(--c-primary)}
.mini-list .mini-idx{
  flex:0 0 auto;font-family:var(--font-mono);font-size:12px;font-weight:700;
  color:var(--c-primary);background:rgba(108,75,244,.09);
  border-radius:6px;padding:2px 6px;margin-top:2px;
}
.side-tip{font-size:13.6px;color:var(--t-sub);line-height:1.8;margin:0 0 16px}
.side-card-accent{border-top:3px solid var(--c-primary)}

/* ============ 文末模块 ============ */
.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--t-sub);font-size:13px;
  transition:var(--tr);
}
.tag:hover{border-color:rgba(108,75,244,.45);color:var(--c-primary);transform:translateY(-1px)}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px}
.pn-card{
  display:block;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:18px 20px;transition:var(--tr);
}
.pn-card:hover{transform:translateY(-3px);border-color:rgba(108,75,244,.42);box-shadow:var(--sh-2)}
.pn-label{font-size:12.5px;font-weight:700;color:var(--c-primary);letter-spacing:.04em}
.pn-title{font-size:15.5px;font-weight:700;color:var(--t-main);line-height:1.55;margin:8px 0 8px}
.pn-time{font-size:13px;color:var(--t-sub)}
.rel-section{margin-top:48px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.sec-title{font-size:clamp(20px,2.2vw,26px);font-weight:800;margin:0;letter-spacing:-.01em}
.sec-sub{font-size:14px;color:var(--t-sub);margin:10px 0 0;line-height:1.8;max-width:620px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;transition:var(--tr);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(108,75,244,.42);box-shadow:var(--sh-2)}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E9EBF4}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .thumb img{transform:scale(1.04)}
.thumb .badge-cat{position:absolute;left:12px;top:12px;background:rgba(15,18,32,.78);border-color:rgba(255,255,255,.18);color:#fff;backdrop-filter:blur(2px)}
.rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-title{font-size:16.5px;font-weight:700;line-height:1.5;color:var(--t-main);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover .rel-title{color:var(--c-primary)}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t-sub);margin-top:auto}

/* ============ CTA 条 ============ */
.cta-section{padding:56px 0 88px}
.cta-band{
  position:relative;overflow:hidden;background:var(--c-primary);
  border-radius:20px;padding:42px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-50px;top:-60px;width:210px;height:210px;
  border-radius:50%;background:rgba(182,242,74,.16);
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--c-accent);
}
.cta-text{position:relative;z-index:1;max-width:640px}
.cta-text h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;margin:0 0 10px;color:#fff}
.cta-text p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.85)}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
.btn-on-primary{
  display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--c-primary-dark)!important;
  border:0;border-radius:var(--r-btn);padding:12px 24px;font-size:15px;font-weight:700;transition:var(--tr);
}
.btn-on-primary:hover{background:var(--c-accent);color:#14172A!important;transform:translateY(-1px)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--t-inv-sub);padding:72px 0 0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:800}
.footer-brand .brand-text em{font-style:normal;color:var(--c-accent)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:290px;margin:0}
.footer-cta{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px}
.footer-list,.footer-info{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-list a{display:inline-block;color:rgba(255,255,255,.66);font-size:14px;transition:var(--tr)}
.footer-list a:hover{color:#fff;transform:translateX(2px)}
.footer-info li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.66)}
.footer-info strong{color:rgba(255,255,255,.92);font-weight:500}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--c-line-dark);
  padding:22px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 移动端抽屉 ============ */
#mobileNav{background:var(--c-ink);color:var(--t-inv);width:82vw;max-width:340px;border-left:1px solid var(--c-line-dark)}
#mobileNav .offcanvas-header{border-bottom:1px solid var(--c-line-dark);padding:18px 20px}
#mobileNav .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.75;width:44px;height:44px;padding:0;margin:0}
.m-nav-list{list-style:none;padding:12px 0;margin:0}
.m-nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 20px;color:rgba(255,255,255,.8);font-size:16px;transition:var(--tr);
}
.m-nav-list a:hover,.m-nav-list a.active{color:#fff;background:rgba(255,255,255,.06)}
.m-nav-foot{padding:20px;border-top:1px solid var(--c-line-dark);display:flex;flex-direction:column;gap:12px}
.m-nav-foot .btn-main,.m-nav-foot .btn-line-light{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{gap:32px;grid-template-columns:minmax(0,1fr) 280px}
  .prose{padding:32px 30px}
}
@media (max-width:991.98px){
  .nav-pill{display:none}
  .header-cta{display:none}
  .nav-toggle{display:grid}
  .article-layout{grid-template-columns:1fr;gap:30px}
  .side-stack{position:static}
  .article-main{padding:40px 0 16px}
  .rel-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px}
  .topbar-right{display:none}
  .page-band{padding:18px 0 32px}
  .prose{padding:26px 20px;border-radius:14px}
  .prose p{font-size:16px}
  .cta-band{padding:30px 24px;border-radius:16px}
  .footer-bottom{margin-top:36px}
}
@media (max-width:575.98px){
  .brand-text em{display:none}
  .rel-grid{grid-template-columns:1fr}
  .pn-grid{grid-template-columns:1fr}
  .breadcrumb .current{max-width:200px}
  .meta-row{justify-content:flex-start}
  .band-title-wrap{text-align:left}
}

/* roulang page: category1 */
:root{
  --c-primary:#6C4BF4;
  --c-primary-dark:#4A2FD1;
  --c-accent:#B6F24A;
  --c-warm:#FF6A3D;
  --c-ink:#0F1220;
  --c-ink-2:#1A1E33;
  --c-bg:#F6F7FB;
  --c-card:#FFFFFF;
  --c-line:#E4E7F0;
  --c-line-dark:rgba(255,255,255,.10);
  --t-main:#14172A;
  --t-sub:#5B6279;
  --t-inv:#F2F4FF;
  --t-inv-sub:#A8AEC7;
  --r-card:16px;
  --r-btn:12px;
  --shadow-1:0 6px 20px rgba(16,20,45,.06);
  --shadow-2:0 14px 34px rgba(16,20,45,.12);
  --ease:.25s cubic-bezier(.4,0,.2,1);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--t-main);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em;font-weight:800;color:var(--t-main)}
h1{font-size:clamp(28px,4.2vw,52px);font-weight:800;line-height:1.2}
h2{font-size:clamp(22px,2.6vw,34px)}
h3{font-size:20px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:575.98px){.container{padding:0 20px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-ink);color:var(--t-inv-sub);font-size:13px;border-bottom:1px solid var(--c-line-dark)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:32px;flex-wrap:wrap}
.topbar-inner span{display:inline-flex;align-items:center;gap:8px}
.topbar-inner i{color:var(--c-accent);font-size:12px}
@media (max-width:767.98px){.topbar-inner{justify-content:center}.topbar-inner span:last-child{display:none}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(15,18,32,.88);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(15,18,32,.94);border-bottom-color:var(--c-line-dark)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;white-space:nowrap;text-decoration:none}
.brand:hover{color:#fff;text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  display:grid;place-items:center;
  font-family:var(--mono);font-size:16px;font-weight:700;color:#fff;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);
}
.brand-text em{font-style:normal;color:var(--c-accent)}
@media (max-width:575.98px){.brand-text em{display:none}.brand{font-size:16px}}

.nav-pill{
  display:flex;align-items:center;gap:4px;margin:0 auto;
  padding:6px;border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--c-line-dark);
}
.nav-pill .nav-link{
  position:relative;display:inline-block;
  padding:10px 16px;border-radius:999px;
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  transition:var(--ease);text-decoration:none;white-space:nowrap;
}
.nav-pill .nav-link:hover{color:#fff;background:rgba(255,255,255,.06);text-decoration:none}
.nav-pill .nav-link.active{color:#fff}
.nav-pill .nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:3px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--c-line-dark);
  border-radius:12px;color:rgba(255,255,255,.8);cursor:pointer;transition:var(--ease);
}
.icon-btn:hover{color:#fff;background:rgba(108,75,244,.24);border-color:rgba(108,75,244,.5)}
.hamburger{
  display:none;width:44px;height:44px;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--c-line-dark);
  border-radius:12px;color:#fff;cursor:pointer;
}
.hamburger:hover{background:rgba(108,75,244,.24)}
@media (max-width:991.98px){
  .nav-pill{display:none}
  .header-actions .btn-main{display:none}
  .hamburger{display:grid}
}
@media (max-width:359.98px){.icon-btn{display:none}}

/* 抽屉 */
.drawer{
  --bs-offcanvas-width:min(82vw,340px);
  background:var(--c-ink);color:var(--t-inv);border-left:1px solid var(--c-line-dark);
}
.drawer .offcanvas-header{border-bottom:1px solid var(--c-line-dark);padding:14px 20px}
.drawer .offcanvas-body{padding:16px 12px 24px;display:flex;flex-direction:column}
.drawer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px}
.drawer-brand em{font-style:normal;color:var(--c-accent)}
.drawer-close{
  width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--c-line-dark);
  color:#fff;font-size:18px;cursor:pointer;transition:var(--ease);
}
.drawer-close:hover{background:rgba(255,255,255,.12)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:10px;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  text-decoration:none;transition:var(--ease);
}
.drawer-link:hover{background:rgba(255,255,255,.07);color:#fff;text-decoration:none}
.drawer-link.active{color:#fff;background:rgba(108,75,244,.22)}
.drawer-link.active i{color:var(--c-accent)}
.drawer-divider{height:1px;background:var(--c-line-dark);margin:14px 12px}
.drawer-foot{margin-top:auto;padding:16px 8px 0;display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn-main,.drawer-foot .btn-line-light{width:100%}

/* ---------- 按钮 ---------- */
.btn-main,.btn-line,.btn-line-light,.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-size:15px;font-weight:700;line-height:1.2;
  padding:12px 24px;border-radius:var(--r-btn);cursor:pointer;
  transition:var(--ease);text-decoration:none;border:0;
}
.btn-main{background:var(--c-primary);color:#fff}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);text-decoration:none}
.btn-main:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-line{
  background:transparent;border:1.5px solid rgba(108,75,244,.35);color:var(--c-primary-dark);
}
.btn-line:hover{background:rgba(108,75,244,.08);border-color:var(--c-primary);color:var(--c-primary-dark);text-decoration:none}
.btn-line-light{
  background:transparent;border:1.5px solid rgba(255,255,255,.28);color:#fff;
}
.btn-line-light:hover{background:rgba(108,75,244,.18);border-color:var(--c-primary);color:#fff;text-decoration:none}
.btn-white{background:#fff;color:var(--c-primary-dark)}
.btn-white:hover{background:#F1EEFF;color:var(--c-primary-dark);transform:translateY(-1px);box-shadow:0 14px 34px rgba(15,18,32,.22);text-decoration:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--c-primary)}
.link-arrow i{transition:transform var(--ease);font-size:13px}
.link-arrow:hover{text-decoration:none;color:var(--c-primary-dark)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
@media (max-width:991.98px){.section{padding:64px 0}}
@media (max-width:575.98px){.section{padding:56px 0}}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--t-sub);margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.02em;
  color:var(--c-primary);background:rgba(108,75,244,.08);
  border:1px solid rgba(108,75,244,.18);border-radius:999px;
  padding:5px 12px;margin-bottom:16px;
}
.eyebrow.on-dark{color:var(--c-accent);background:rgba(182,242,74,.10);border-color:rgba(182,242,74,.28)}

/* ---------- 频道横幅 ---------- */
.chan-banner{
  position:relative;overflow:hidden;color:var(--t-inv);
  background:var(--c-ink) url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  padding:72px 0 68px;
}
.chan-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,18,32,.86),rgba(15,18,32,.95));
}
.chan-banner::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.chan-banner .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.66)}
.crumb a:hover{color:#fff;text-decoration:none}
.crumb-sep{color:rgba(255,255,255,.3)}
.crumb-cur{color:var(--c-accent);font-weight:700}
.chan-banner h1{color:#fff;max-width:900px;margin-bottom:16px}
.banner-sub{font-size:17px;line-height:1.7;color:rgba(255,255,255,.78);max-width:680px;margin:0 0 28px}
.banner-actions{display:flex;gap:12px;flex-wrap:wrap}
.banner-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.tag-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:rgba(255,255,255,.8);
  background:rgba(255,255,255,.06);border:1px solid var(--c-line-dark);
  border-radius:999px;padding:6px 14px;
}
.tag-chip i{color:var(--c-accent);font-size:12px}
@media (max-width:767.98px){.chan-banner{padding:52px 0 48px}.banner-sub{font-size:16px}}

/* ---------- 指标条 ---------- */
.metrics{padding:0 0 8px;margin-top:-34px;position:relative;z-index:3}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  border-top:3px solid var(--c-primary);
  padding:22px 20px;box-shadow:var(--shadow-1);transition:var(--ease);
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(108,75,244,.4);border-top-color:var(--c-primary)}
.metric-num{font-family:var(--mono);font-size:clamp(22px,2.4vw,30px);font-weight:800;color:var(--c-primary);line-height:1.2;letter-spacing:-.01em}
.metric-label{font-size:13px;color:var(--t-sub);margin-top:6px}
@media (max-width:767.98px){.metric-grid{grid-template-columns:repeat(2,1fr);gap:14px}.metrics{margin-top:-24px}}

/* ---------- 图文交错 ---------- */
.zig-row{align-items:center}
.zig-row + .zig-row{margin-top:72px}
@media (max-width:991.98px){.zig-row + .zig-row{margin-top:52px}}
.img-frame{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  border-radius:14px;border:1px solid var(--c-line);background:#E9EBF4;
}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.img-frame:hover img{transform:scale(1.04)}
.step-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--c-primary-dark);
  background:rgba(108,75,244,.10);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.zig-text h3{margin-bottom:14px;font-size:clamp(19px,1.9vw,23px);font-weight:700}
.zig-text p{color:var(--t-sub);font-size:16px}
.zig-text .link-arrow{margin-top:6px}

/* ---------- 场景卡 ---------- */
.scene-card{
  height:100%;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-1);transition:var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(108,75,244,.4);box-shadow:var(--shadow-2)}
.scene-icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:rgba(108,75,244,.10);color:var(--c-primary);font-size:18px;margin-bottom:16px;
}
.scene-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.scene-card p{color:var(--t-sub);font-size:15px;margin:0}

/* ---------- 表格 ---------- */
.table-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden}
.table-scroll{overflow-x:auto}
.ck-table{width:100%;border-collapse:collapse;min-width:680px;font-size:15px}
.ck-table th{
  background:#F1F3F9;text-align:left;padding:15px 22px;
  font-size:14px;font-weight:700;color:var(--t-main);white-space:nowrap;
}
.ck-table td{padding:16px 22px;border-top:1px solid var(--c-line);color:var(--t-sub);vertical-align:top}
.ck-table td:first-child{color:var(--t-main);font-weight:500;width:32%}
.ck-table tbody tr{transition:background var(--ease)}
.ck-table tbody tr:hover{background:#FAFAFF}

/* ---------- FAQ ---------- */
.faq-shell{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:10px 28px;box-shadow:var(--shadow-1)}
@media (max-width:575.98px){.faq-shell{padding:6px 18px}}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-item:first-child .faq-q{padding-top:22px}
.faq-q{
  width:100%;background:none;border:0;text-align:left;position:relative;
  padding:20px 46px 20px 0;font-family:inherit;font-size:17px;font-weight:700;
  line-height:1.55;color:var(--t-main);cursor:pointer;transition:color var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:400;line-height:1;color:var(--c-primary);
  transition:transform var(--ease);
}
.faq-q:not(.collapsed){color:var(--c-primary)}
.faq-q:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{padding:0 46px 22px 0;color:var(--t-sub);font-size:15px;line-height:1.85}
@media (max-width:575.98px){.faq-a{padding-right:12px}}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background:var(--c-primary);color:#fff;
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
  box-shadow:0 18px 44px rgba(74,47,209,.28);
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  background:radial-gradient(circle at center,rgba(182,242,74,.35),transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{color:#fff;margin-bottom:10px;font-size:clamp(22px,2.4vw,30px)}
.cta-copy p{color:rgba(255,255,255,.85);margin:0;font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:767.98px){.cta-band{padding:32px 24px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--t-inv-sub);padding:64px 0 0;margin-top:0}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px}
.footer-brand em{font-style:normal;color:var(--c-accent)}
.footer-desc{font-size:14px;color:var(--t-inv-sub);max-width:290px;margin-bottom:20px}
.footer-cta{display:flex;gap:10px;flex-wrap:wrap}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-list a{color:rgba(255,255,255,.66);font-size:14px;display:inline-block;transition:var(--ease)}
.footer-list a:hover{color:#fff;transform:translateX(2px);text-decoration:none}
.footer-info{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(255,255,255,.66)}
.footer-info strong{color:#fff;font-weight:500}
.footer-bottom{
  border-top:1px solid var(--c-line-dark);margin-top:52px;padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:991.98px){.footer-bottom{justify-content:flex-start}}

/* roulang page: category2 */
:root{
  --c-primary:#6C4BF4;
  --c-primary-dark:#4A2FD1;
  --c-accent:#B6F24A;
  --c-warm:#FF6A3D;
  --c-ink:#0F1220;
  --c-ink-2:#1A1E33;
  --c-bg:#F6F7FB;
  --c-card:#FFFFFF;
  --c-line:#E4E7F0;
  --c-line-dark:rgba(255,255,255,.10);
  --t-main:#14172A;
  --t-sub:#5B6279;
  --t-inv:#F2F4FF;
  --t-inv-sub:#A8AEC7;
  --r-card:16px;
  --r-dark:18px;
  --r-btn:12px;
  --sh-1:0 6px 20px rgba(16,20,45,.06);
  --sh-2:0 14px 34px rgba(16,20,45,.12);
  --tr:.25s cubic-bezier(.4,0,.2,1);
  --font-sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.8;color:var(--t-main);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),border-color var(--tr)}
a:hover{color:var(--c-primary-dark)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-primary);text-transform:uppercase;margin-bottom:14px}
.sec-kicker::before{content:"";width:18px;height:2px;background:var(--c-accent);border-radius:2px}
.sec-title{font-size:clamp(22px,2.6vw,34px);font-weight:700;margin-bottom:14px}
.sec-desc{color:var(--t-sub);font-size:16px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#0B0E1A;color:var(--t-inv-sub);font-size:13px}
.topbar-inner{display:flex;align-items:center;gap:14px;min-height:34px;flex-wrap:wrap}
.topbar-inner i{color:var(--c-accent);margin-right:6px}
.topbar-sep{width:1px;height:12px;background:rgba(255,255,255,.16)}
.topbar-link{margin-left:auto;color:var(--c-accent);font-weight:500}
.topbar-link:hover{color:#fff}
@media (max-width:767.98px){
  .topbar-inner{gap:10px;font-size:12px}
  .topbar-hide{display:none}
  .topbar-link{margin-left:0}
}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--c-ink);border-bottom:1px solid transparent;transition:background var(--tr),border-color var(--tr)}
.site-header.scrolled{background:rgba(15,18,32,.94);border-bottom-color:var(--c-line-dark)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em}
.brand:hover{color:#fff}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:var(--c-accent);display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex:0 0 34px}
.brand-text{white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-accent)}
.nav-pill{display:flex;align-items:center;gap:4px;background:rgba(255,255,255,.06);border:1px solid var(--c-line-dark);border-radius:999px;padding:5px}
.nav-pill .nav-link{position:relative;padding:9px 16px;border-radius:999px;font-size:14.5px;font-weight:500;color:rgba(255,255,255,.72);white-space:nowrap;transition:color var(--tr),background var(--tr)}
.nav-pill .nav-link::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--tr)}
.nav-pill .nav-link:hover{color:#fff}
.nav-pill .nav-link:hover::after{transform:scaleX(1)}
.nav-pill .nav-link.active{color:#fff;background:rgba(255,255,255,.09)}
.nav-pill .nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line-dark);background:rgba(255,255,255,.05);color:rgba(255,255,255,.82);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--tr)}
.icon-btn:hover{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.3)}
.icon-btn:active{transform:translateY(1px)}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--c-primary);color:#fff;font-weight:700;font-size:15px;border:0;border-radius:var(--r-btn);padding:12px 24px;cursor:pointer;transition:var(--tr);white-space:nowrap}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-line-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:transparent;color:#fff;font-weight:700;font-size:15px;border:1.5px solid rgba(255,255,255,.28);border-radius:var(--r-btn);padding:11px 22px;cursor:pointer;transition:var(--tr)}
.btn-line-light:hover{background:rgba(108,75,244,.18);border-color:rgba(255,255,255,.5);color:#fff}
.btn-line{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:transparent;color:var(--c-primary);font-weight:700;font-size:15px;border:1.5px solid rgba(108,75,244,.28);border-radius:var(--r-btn);padding:11px 22px;cursor:pointer;transition:var(--tr)}
.btn-line:hover{background:rgba(108,75,244,.08);color:var(--c-primary-dark);border-color:rgba(108,75,244,.5)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14.5px;color:var(--c-primary)}
.link-arrow i{transition:transform var(--tr)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 抽屉 ---------- */
.drawer{background:var(--c-ink);color:var(--t-inv);width:82vw;max-width:340px;border-left:1px solid var(--c-line-dark)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line-dark)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line-dark);background:rgba(255,255,255,.05);color:#fff;font-size:20px;line-height:1;cursor:pointer;transition:var(--tr)}
.drawer-close:hover{background:rgba(255,255,255,.12)}
.drawer-body{padding:12px 12px 20px;display:flex;flex-direction:column;overflow-y:auto}
.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:12px;color:rgba(255,255,255,.78);font-size:15.5px;font-weight:500;transition:var(--tr)}
.drawer-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.drawer-link.active{color:#fff;background:rgba(108,75,244,.24);box-shadow:inset 3px 0 0 var(--c-accent)}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid var(--c-line-dark);display:flex;flex-direction:column;gap:10px}

/* ---------- 频道横幅 ---------- */
.page-banner{position:relative;background-color:var(--c-ink);background-image:linear-gradient(rgba(15,18,32,.88),rgba(15,18,32,.94)),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;color:var(--t-inv);padding:76px 0 68px;overflow:hidden}
.page-banner::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;opacity:.55;pointer-events:none}
.banner-inner{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--t-inv-sub);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.4}
.crumb .current{color:var(--c-accent);font-weight:700}
.page-banner h1{font-size:clamp(28px,4.2vw,52px);font-weight:800;line-height:1.2;letter-spacing:-.02em;color:#fff;max-width:900px}
.page-banner h1 span{color:var(--c-accent)}
.banner-lead{margin-top:18px;font-size:17px;color:rgba(255,255,255,.78);max-width:680px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:500;color:rgba(255,255,255,.85);background:rgba(255,255,255,.07);border:1px solid var(--c-line-dark)}
.tag-chip i{color:var(--c-accent)}

/* ---------- 编号要点区 ---------- */
.num-list{border-top:1px solid var(--c-line)}
.num-item{display:flex;gap:20px;padding:24px 20px;border-bottom:1px solid var(--c-line);border-radius:14px;transition:var(--tr)}
.num-item:hover{background:rgba(108,75,244,.06);transform:translateX(4px)}
.num-item .num{font-family:var(--font-mono);font-size:19px;font-weight:800;color:var(--c-primary);flex:0 0 44px;line-height:1.5}
.num-item h3{font-size:19px;font-weight:700;margin-bottom:8px}
.num-item p{color:var(--t-sub);font-size:15px;margin:0}
.side-stack{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--c-card);border:1px solid var(--c-line);border-top:3px solid var(--c-primary);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;transition:var(--tr)}
.side-card:hover{box-shadow:var(--sh-2)}
.side-card h3{font-size:18px;font-weight:700;margin-bottom:16px}
.side-card .media{border-radius:14px;overflow:hidden;margin-bottom:18px;aspect-ratio:16/10;background:var(--c-ink-2)}
.side-card .media img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.side-card:hover .media img{transform:scale(1.04)}
.point-list li{display:flex;gap:10px;font-size:14.5px;color:var(--t-sub);padding:10px 0;border-bottom:1px dashed var(--c-line)}
.point-list li:last-child{border-bottom:0;padding-bottom:0}
.point-list i{color:var(--c-primary);margin-top:5px}
.mini-note{margin-top:18px;padding:14px 16px;border-radius:12px;background:rgba(182,242,74,.14);border-left:3px solid var(--c-accent);font-size:14px;color:var(--t-main)}

/* ---------- 深色指标区 ---------- */
.metric-band{background:var(--c-ink);color:var(--t-inv);position:relative;overflow:hidden;padding:72px 0}
.metric-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);background-size:22px 22px;opacity:.5;pointer-events:none}
.metric-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr)}
.metric-item{padding:8px 24px;border-left:1px solid var(--c-line-dark)}
.metric-item:first-child{border-left:0;padding-left:0}
.metric-value{font-family:var(--font-mono);font-size:clamp(30px,4vw,46px);font-weight:800;color:#fff;line-height:1.1}
.metric-value em{font-style:normal;color:var(--c-accent);font-size:.6em;margin-left:4px}
.metric-label{font-size:13px;color:var(--t-inv-sub);margin-top:10px}
.metric-foot{position:relative;z-index:1;margin-top:44px;padding-left:16px;border-left:3px solid var(--c-accent);color:rgba(255,255,255,.8);font-size:15px}
@media (max-width:767.98px){
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .metric-item:nth-child(odd){border-left:0;padding-left:0}
  .metric-item{padding:0 18px}
}

/* ---------- 对照表 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.table-x{width:100%;min-width:720px;border-collapse:separate;border-spacing:0;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden}
.table-x th{background:#F0F1F7;font-size:14px;font-weight:700;color:var(--t-main);text-align:left;padding:15px 20px;white-space:nowrap}
.table-x td{padding:16px 20px;border-top:1px solid var(--c-line);font-size:15px;color:var(--t-sub)}
.table-x td:first-child{color:var(--t-main);font-weight:700}
.table-x tbody tr{transition:background var(--tr)}
.table-x tbody tr:hover{background:rgba(108,75,244,.05)}
.badge-soft{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:700;background:rgba(108,75,244,.1);color:var(--c-primary-dark)}
.badge-accent{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:700;background:rgba(182,242,74,.22);color:#42590A}
.badge-warm{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:700;background:rgba(255,106,61,.14);color:#B33A12}

/* ---------- FAQ ---------- */
.faq .accordion-item{border:0;background:transparent;border-bottom:1px solid var(--c-line)}
.faq .accordion-item:first-child{border-top:1px solid var(--c-line)}
.faq .accordion-button{background:transparent;box-shadow:none;font-size:17px;font-weight:700;color:var(--t-main);padding:22px 48px 22px 0;border-radius:0;transition:color var(--tr)}
.faq .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-button::after{content:"+";background-image:none;width:28px;height:28px;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:400;line-height:1;color:var(--c-primary);transition:transform var(--tr);margin-left:auto}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq .accordion-body{padding:0 48px 24px 0;font-size:15px;line-height:1.85;color:var(--t-sub)}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--c-primary);color:#fff;border-radius:var(--r-dark);padding:48px;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;background:rgba(255,255,255,.08);transform:rotate(45deg);border-radius:36px;pointer-events:none}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-main{background:#fff;color:var(--c-primary-dark)}
.cta-band .btn-main:hover{background:#F2F0FF;color:var(--c-primary-dark)}
.cta-band .btn-line-light{border-color:rgba(255,255,255,.55)}
.cta-band .btn-line-light:hover{background:rgba(255,255,255,.14)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--t-inv-sub);padding:72px 0 0;margin-top:96px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:18px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:var(--c-accent);display:inline-flex;align-items:center;justify-content:center;font-weight:800}
.footer-brand .brand-text em{font-style:normal;color:var(--c-accent)}
.footer-desc{font-size:14.5px;color:rgba(255,255,255,.62);max-width:280px}
.footer-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-list li{margin-bottom:11px}
.footer-list a{font-size:14px;color:rgba(255,255,255,.66);transition:var(--tr);display:inline-block}
.footer-list a:hover{color:#fff;transform:translateX(2px)}
.footer-info li{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:11px}
.footer-info strong{color:rgba(255,255,255,.86);font-weight:500}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:52px;padding:22px 0;border-top:1px solid var(--c-line-dark);font-size:13px;color:rgba(255,255,255,.48)}

/* ---------- 响应式 ---------- */
@media (max-width:991.98px){
  .section{padding:64px 0}
  .side-stack{position:static;margin-top:32px}
  .cta-band{padding:36px 28px}
}
@media (max-width:767.98px){
  .header-inner{height:64px}
  .brand-text{font-size:15.5px}
  .page-banner{padding:52px 0 48px}
  .page-banner h1{font-size:clamp(26px,7vw,36px)}
  .banner-lead{font-size:15.5px}
  .num-item{padding:20px 14px;gap:14px}
  .num-item:hover{transform:none}
  .sec-head{margin-bottom:32px}
  .site-footer{padding-top:56px;margin-top:64px}
  .faq .accordion-button{font-size:16px;padding-right:40px}
  .faq .accordion-body{padding-right:0}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-line-light{flex:1 1 100%}
}

/* roulang page: category3 */
:root{
  --c-primary:#6C4BF4;
  --c-primary-dark:#4A2FD1;
  --c-accent:#B6F24A;
  --c-warm:#FF6A3D;
  --c-ink:#0F1220;
  --c-ink-2:#1A1E33;
  --c-bg:#F6F7FB;
  --c-card:#FFFFFF;
  --c-line:#E4E7F0;
  --c-line-dark:rgba(255,255,255,.10);
  --t-main:#14172A;
  --t-sub:#5B6279;
  --t-inv:#F2F4FF;
  --t-inv-sub:#A8AEC7;
  --r-card:16px;
  --r-card-dark:18px;
  --r-btn:12px;
  --r-input:12px;
  --r-img:14px;
  --sh-1:0 6px 20px rgba(16,20,45,.06);
  --sh-2:0 14px 34px rgba(16,20,45,.12);
  --tr:.25s cubic-bezier(.4,0,.2,1);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.8;
  color:var(--t-main);background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),background var(--tr),border-color var(--tr)}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t-main);letter-spacing:-.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:575px){.container{padding:0 20px}}

/* 顶部细信息条 */
.topbar{background:var(--c-ink);border-bottom:1px solid var(--c-line-dark);color:var(--t-inv-sub);font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px;flex-wrap:wrap}
.topbar span{display:inline-flex;align-items:center;gap:6px}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block}
@media (max-width:767px){.topbar .topbar-right{display:none}}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1035;background:rgba(15,18,32,.96);border-bottom:1px solid transparent;transition:background var(--tr),border-color var(--tr),box-shadow var(--tr)}
.site-header.is-scrolled{background:rgba(15,18,32,.99);border-bottom-color:var(--c-line-dark);box-shadow:0 12px 30px rgba(6,8,20,.45)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:16px;
  box-shadow:0 0 0 1px rgba(255,255,255,.12) inset;
}
.brand-text em{font-style:normal;color:var(--c-accent)}
.header-nav{flex:1;display:flex;justify-content:center}
.nav-pill{
  display:flex;align-items:center;gap:2px;padding:5px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--c-line-dark);
}
.nav-pill .nav-link{
  position:relative;color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  padding:9px 16px;border-radius:999px;white-space:nowrap;
}
.nav-pill .nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-pill .nav-link.active{color:#fff;background:rgba(108,75,244,.22)}
.nav-pill .nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  border-radius:2px;background:var(--c-accent);
}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line-dark);
  background:rgba(255,255,255,.04);color:#fff;display:grid;place-items:center;font-size:17px;
  transition:background var(--tr),border-color var(--tr);
}
.icon-btn:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.22);color:#fff}
.menu-toggle{display:none}
@media (max-width:991px){
  .header-nav{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-main{display:none}
  .icon-btn{width:44px;height:44px}
}
@media (max-width:575px){
  .header-actions .icon-btn.search-btn{display:none}
  .brand-text{font-size:16px}
}

/* 抽屉 */
.drawer{background:var(--c-ink);color:var(--t-inv);width:82vw;max-width:340px;border:0}
.drawer .offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--c-line-dark)}
.drawer .offcanvas-body{padding:8px 20px 24px;display:flex;flex-direction:column}
.drawer .drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;color:rgba(255,255,255,.78);font-size:16px;font-weight:500;
  border-bottom:1px solid var(--c-line-dark);
}
.drawer .drawer-link:hover,.drawer .drawer-link.active{color:#fff}
.drawer .drawer-link.active{color:var(--c-accent)}
.drawer-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:10px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line-dark);background:transparent;color:#fff;display:grid;place-items:center}

/* 按钮 */
.btn-main,.btn-line,.btn-line-light,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;padding:12px 24px;
  border:1.5px solid transparent;transition:all var(--tr);text-align:center;
}
.btn-main{background:var(--c-primary);color:#fff}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-line{border-color:rgba(108,75,244,.28);color:var(--c-primary);background:transparent}
.btn-line:hover{background:rgba(108,75,244,.08);color:var(--c-primary-dark);border-color:rgba(108,75,244,.45)}
.btn-line-light{border-color:rgba(255,255,255,.28);color:#fff;background:transparent}
.btn-line-light:hover{background:rgba(255,255,255,.10);color:#fff}
.btn-ghost{color:var(--c-primary);padding:10px 4px;font-weight:700}
.btn-ghost:hover{color:var(--c-primary-dark)}
.btn-ghost .arw{transition:transform var(--tr)}
.btn-ghost:hover .arw{transform:translateX(4px)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}

/* 频道横幅 */
.page-banner{position:relative;overflow:hidden;background:var(--c-ink);color:var(--t-inv);padding:52px 0 62px}
.page-banner .bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;opacity:.30}
.page-banner .veil{position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,18,32,.94) 0%,rgba(15,18,32,.78) 48%,rgba(74,47,209,.55) 100%)}
.page-banner .grid-tex{
  position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.page-banner .container{position:relative;z-index:2}
.crumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-inv-sub);margin-bottom:22px}
.crumb-nav a{color:rgba(255,255,255,.72)}
.crumb-nav a:hover{color:#fff}
.crumb-nav .sep{color:rgba(255,255,255,.32)}
.crumb-nav .cur{color:var(--c-accent)}
.banner-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(182,242,74,.14);border:1px solid rgba(182,242,74,.35);
  color:var(--c-accent);font-size:13px;font-weight:700;margin-bottom:18px;
}
.page-banner h1{color:#fff;font-size:clamp(28px,4.2vw,52px);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-bottom:16px}
.page-banner .lead{max-width:640px;font-size:clamp(16px,1.5vw,19px);line-height:1.7;color:rgba(255,255,255,.78)}
.banner-metrics{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.banner-metrics li{
  display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line-dark);font-size:13px;color:var(--t-inv-sub);
}
.banner-metrics strong{font-family:var(--mono);font-size:17px;font-weight:800;color:var(--c-accent)}

/* 板块 */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-dark{background:var(--c-ink);color:var(--t-inv)}
.section-dark h2,.section-dark h3{color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.06em;color:var(--c-primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-accent);border-radius:2px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.3;margin-bottom:14px}
.section-head p{color:var(--t-sub);font-size:16px}
.section-dark .section-head p{color:var(--t-inv-sub)}
@media (max-width:767px){.section{padding:56px 0}.section-head{margin-bottom:32px}}

/* 筛选标签 */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--t-sub);font-size:14px;font-weight:500;
  transition:all var(--tr);
}
.chip:hover{border-color:rgba(108,75,244,.4);color:var(--c-primary-dark)}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:700}
.chip .num{font-family:var(--mono);font-size:12px;opacity:.7}

/* 卡片矩阵 */
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:991px){.cat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media (max-width:575px){.cat-grid{grid-template-columns:1fr}}
.q-card{
  display:flex;flex-direction:column;height:100%;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.q-card:hover{transform:translateY(-4px);border-color:rgba(108,75,244,.4);box-shadow:var(--sh-2)}
.thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--c-ink-2);position:relative}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.q-card:hover .thumb img{transform:scale(1.04)}
.thumb .corner{
  position:absolute;top:0;left:0;width:0;height:0;
  border-top:34px solid var(--c-accent);border-right:34px solid transparent;opacity:.9;
}
.q-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;background:#EFF1F8;color:var(--t-sub);
}
.tag-purple{background:rgba(108,75,244,.12);color:var(--c-primary-dark)}
.tag-lime{background:rgba(182,242,74,.35);color:#3E5A0B}
.tag-warm{background:rgba(255,106,61,.13);color:#B23A16}
.q-title{font-size:17px;line-height:1.5;font-weight:700}
.q-title a{color:var(--t-main)}
.q-title a:hover{color:var(--c-primary-dark);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.q-desc{font-size:14px;line-height:1.75;color:var(--t-sub);margin:0}
.q-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t-sub);
}
.q-foot .go{color:var(--c-primary);font-weight:700}
.q-foot .go .arw{display:inline-block;transition:transform var(--tr)}
.q-card:hover .q-foot .go .arw{transform:translateX(4px)}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;position:relative}
.step{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.step:hover{transform:translateY(-4px);border-color:rgba(108,75,244,.4);box-shadow:var(--sh-2)}
.step-num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;margin-bottom:16px;
  border:2px solid var(--c-primary);color:var(--c-primary);font-family:var(--mono);font-weight:800;font-size:15px;
  transition:all var(--tr);
}
.step:hover .step-num{background:var(--c-primary);color:#fff}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--t-sub);line-height:1.75;margin:0}
@media (min-width:992px){
  .steps::before{
    content:"";position:absolute;top:48px;left:6%;right:6%;border-top:2px dashed rgba(108,75,244,.28);
  }
}
@media (max-width:991px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.steps{grid-template-columns:1fr}}

/* 数据区 */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--c-line-dark);border-bottom:1px solid var(--c-line-dark)}
.stat{padding:34px 22px;border-right:1px solid var(--c-line-dark)}
.stat:last-child{border-right:0}
.stat .num{font-family:var(--mono);font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1.1;color:#fff;letter-spacing:-.02em}
.stat .num em{font-style:normal;color:var(--c-accent);font-size:.55em;margin-left:4px}
.stat .label{margin-top:10px;font-size:13.5px;color:var(--t-inv-sub)}
.note-bar{
  margin-top:32px;padding:16px 20px;border-left:3px solid var(--c-accent);
  background:rgba(182,242,74,.07);color:rgba(255,255,255,.82);font-size:15px;border-radius:0 12px 12px 0;
}
@media (max-width:767px){
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{border-bottom:1px solid var(--c-line-dark);padding:24px 18px}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-last-child(-n+2){border-bottom:0}
}

/* 风险提示 */
.risk-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}
.risk-list{background:var(--c-ink-2);border:1px solid var(--c-line-dark);border-radius:var(--r-card-dark);padding:28px;box-shadow:inset 0 0 0 1px rgba(108,75,244,.18)}
.risk-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--c-line-dark);font-size:15px;color:rgba(255,255,255,.8)}
.risk-list li:last-child{border-bottom:0;padding-bottom:0}
.risk-list li:first-child{padding-top:0}
.risk-list .k{font-family:var(--mono);color:var(--c-accent);font-weight:800;flex:none}
@media (max-width:991px){.risk-grid{grid-template-columns:1fr}}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-h{margin:0}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;position:relative;
  padding:22px 52px 22px 0;font-size:17px;font-weight:700;color:var(--t-main);line-height:1.6;
  transition:color var(--tr);
}
.faq-q::after{
  content:"+";position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:400;color:var(--c-primary);transition:transform var(--tr);
}
.faq-q[aria-expanded="true"]{color:var(--c-primary)}
.faq-q[aria-expanded="true"]::after{transform:translateY(-50%) rotate(45deg)}
.faq-q:hover{color:var(--c-primary-dark)}
.faq-a{padding:0 44px 24px 0;font-size:15px;line-height:1.85;color:var(--t-sub)}
@media (max-width:991px){.faq-wrap{grid-template-columns:1fr;gap:26px}}

/* 表单 */
.contact-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
.contact-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--c-line);font-size:15px;color:var(--t-sub)}
.contact-list .k{color:var(--c-primary);font-weight:700;flex:none;min-width:76px}
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card-dark);padding:28px;box-shadow:var(--sh-1)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--t-main)}
.field .req{color:var(--c-warm)}
.form-control,.form-select{
  width:100%;height:46px;border-radius:var(--r-input);border:1px solid var(--c-line);
  background:#FCFCFE;padding:0 14px;font-size:15px;color:var(--t-main);
  transition:border-color var(--tr),box-shadow var(--tr);
}
textarea.form-control{height:auto;min-height:130px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,75,244,.12);
}
.form-control::placeholder{color:#9AA0B5}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--t-sub);line-height:1.7}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-primary);flex:none}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:767px){.form-row{grid-template-columns:1fr}}
@media (max-width:991px){.contact-wrap{grid-template-columns:1fr;gap:28px}}

/* CTA 条 */
.cta-band{
  background:linear-gradient(120deg,var(--c-primary) 0%,var(--c-primary-dark) 100%);
  border-radius:22px;padding:40px 36px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:0 18px 44px rgba(74,47,209,.28);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;
  background:rgba(182,242,74,.16);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.3vw,28px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.cta-band .btn-main{background:#fff;color:var(--c-primary-dark)}
.cta-band .btn-main:hover{background:#F1EEFF;color:var(--c-primary-dark)}
@media (max-width:575px){.cta-band{padding:30px 22px}}

/* 页脚 */
.site-footer{background:var(--c-ink);color:var(--t-inv-sub);padding:64px 0 0;margin-top:88px;border-top:1px solid var(--c-line-dark)}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px}
.footer-brand .brand-text em{font-style:normal;color:var(--c-accent)}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);max-width:280px;margin-bottom:20px}
.footer-cta{display:flex;gap:10px;flex-wrap:wrap}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-list li{margin-bottom:11px}
.footer-list a{font-size:14px;color:rgba(255,255,255,.66);display:inline-block;transition:color var(--tr),transform var(--tr)}
.footer-list a:hover{color:#fff;transform:translateX(2px)}
.footer-info li{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:11px;line-height:1.7}
.footer-info strong{color:#fff;font-weight:700}
.footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid var(--c-line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:767px){
  .site-footer{padding-top:44px;margin-top:56px}
  .footer-desc{max-width:none}
  .footer-bottom{margin-top:32px}
}