/* roulang page: index */
:root{
  --brand:#1F5AD6;
  --brand-dark:#143C8F;
  --brand-light:#E8EFFC;
  --accent:#FF6A3D;
  --success:#17B890;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E3E9F2;
  --text:#101E33;
  --text-2:#56657F;
  --text-3:#8B97AC;
  --footer-bg:#0E1E3C;
  --footer-text:#C7D3E8;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,30,51,.04), 0 8px 24px rgba(16,30,51,.06);
  --sh-2:0 12px 32px rgba(31,90,214,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:640px){.container{padding:0 16px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(16,30,51,.05)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease-out}
.site-header.scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.2px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;letter-spacing:-.5px;
}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .18s ease-out,background-color .18s ease-out;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-light)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;
  height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(16,30,51,.42);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s;
}
.nav-overlay.show{opacity:1;visibility:visible}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:280px;max-width:84vw;
    margin:0;padding:88px 18px 24px;gap:2px;
    flex-direction:column;align-items:stretch;
    background:#fff;box-shadow:-12px 0 40px rgba(16,30,51,.16);
    transform:translateX(100%);visibility:hidden;z-index:80;
    transition:transform .26s ease-out,visibility .26s;
  }
  .main-nav.open{transform:translateX(0);visibility:visible}
  .nav-link{padding:12px 14px;border-radius:10px;font-size:15px}
  .nav-link.active{background:var(--brand-light)}
  .nav-link.active::after{display:none}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,90,214,.24)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-outline:hover{background:var(--brand-light);border-color:#CBDCFA}
.btn-ghost{background:transparent;color:var(--brand);height:auto;padding:0;font-weight:600}
.btn-ghost:hover{color:var(--brand-dark)}
.btn-ghost .arrow{transition:transform .18s ease-out}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn:focus-visible,.nav-link:focus-visible,.card:focus-visible,a:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;
}
.btn-block{width:100%}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-primary{background:var(--brand-light);color:var(--brand)}
.badge-warn{background:var(--accent);color:#fff}
.badge-ok{background:var(--success);color:#fff}

/* ============ 通用板块 ============ */
.section{padding:48px 0}
@media (min-width:1024px){.section{padding:80px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.section-title{position:relative;padding-left:14px;font-size:22px;line-height:1.4;font-weight:600}
@media (min-width:768px){.section-title{font-size:28px}}
.section-title::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand);
}
.section-desc{margin-top:10px;padding-left:14px;color:var(--text-2);font-size:15px;max-width:680px}
.link-more{color:var(--brand);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--brand-dark)}

/* ============ Hero ============ */
.hero{position:relative;background:#fff;overflow:hidden;padding:56px 0 64px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(760px 340px at 10% -12%,rgba(31,90,214,.12),transparent 70%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(31,90,214,.16) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 72%);
  mask-image:linear-gradient(180deg,#000,transparent 72%);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}}
.hero-badge{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;
  border-radius:999px;background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-title{margin-top:18px;font-size:28px;line-height:1.4;font-weight:700;letter-spacing:-.4px}
@media (min-width:768px){.hero-title{font-size:40px;line-height:1.24}}
.hero-sub{margin-top:14px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:34px;border-top:1px solid var(--line);padding-top:20px}
.hero-stats li{padding-right:28px;margin-right:28px;border-right:1px solid var(--line)}
.hero-stats li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-stats strong{
  display:block;font-size:24px;font-weight:700;color:var(--brand-dark);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.hero-stats span{font-size:13px;color:var(--text-3)}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);aspect-ratio:16/9;background:var(--brand-light);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .badge{position:absolute;top:14px;left:14px}
.hero-countdown{
  position:absolute;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:12px 16px;background:rgba(16,30,51,.84);color:#fff;
}
.hero-countdown .cd-label{font-size:13px;color:#B9C6E0}
.hero-countdown .cd-nums{font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.5px}

/* ============ 倒计时 ============ */
.countdown-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;
}
@media (min-width:768px){.countdown-panel{padding:36px 40px}}
.countdown-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.countdown-head h2{position:relative;padding-left:14px;font-size:20px;font-weight:600}
@media (min-width:768px){.countdown-head h2{font-size:24px}}
.countdown-head h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand)}
.countdown-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:26px}
.cd-cell{position:relative;text-align:center}
.cd-cell + .cd-cell::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:52px;background:var(--line);
}
.cd-num{
  display:block;font-size:36px;font-weight:700;line-height:1.2;color:var(--brand-dark);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
@media (min-width:768px){.cd-num{font-size:44px}}
.cd-unit{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}
.countdown-note{margin-top:24px;font-size:14px;color:var(--text-2);border-top:1px solid var(--line);padding-top:18px}
.countdown-panel.is-live .cd-num{color:var(--accent);animation:breathe 2s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.62}}

/* ============ 看点列表 ============ */
.feature-grid{display:grid;grid-template-columns:1fr;column-gap:48px}
@media (min-width:1024px){.feature-grid{grid-template-columns:1fr 1fr}}
.feature-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.feature-num{
  flex-shrink:0;font-size:15px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;padding-top:3px;
}
.feature-body h3{font-size:17px;font-weight:600;line-height:1.6}
.feature-body p{margin-top:6px;font-size:15px;color:var(--text-2)}
.feature-foot{margin-top:22px}

/* ============ 数据卡 ============ */
.kpi-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.kpi-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.kpi-grid{grid-template-columns:repeat(4,1fr)}}
.kpi-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.kpi-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.kpi-label{font-size:13px;color:var(--text-3)}
.kpi-value{
  margin-top:10px;font-size:32px;font-weight:700;color:var(--brand-dark);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.kpi-value small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px}
.kpi-foot{margin-top:10px;padding-top:10px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2)}

/* ============ 订阅表单 ============ */
.subscribe-box{
  background:var(--brand-light);border-radius:20px;padding:28px;
  display:grid;grid-template-columns:1fr;gap:24px;
}
@media (min-width:1024px){.subscribe-box{grid-template-columns:1fr 1fr;align-items:center;padding:40px 44px;gap:40px}}
.subscribe-box h2{font-size:22px;font-weight:600;line-height:1.5}
@media (min-width:768px){.subscribe-box h2{font-size:26px}}
.subscribe-box p{margin-top:10px;color:var(--text-2);font-size:15px}
.field-row{display:flex;flex-direction:column;gap:12px}
@media (min-width:640px){.field-row{flex-direction:row;align-items:flex-end}}
.field{flex:1;min-width:0}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px}
.field input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:#A9B3C6}
.field input:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(31,90,214,.22)}
.field.error input{border-color:var(--accent);box-shadow:0 0 0 2px rgba(255,106,61,.18)}
.field .err{display:none;margin-top:6px;font-size:12px;color:var(--accent)}
.field.error .err{display:block}
.form-tip{margin-top:12px;font-size:12px;color:var(--text-3)}
.form-feedback{
  display:none;margin-top:12px;padding:12px 14px;border-radius:10px;
  background:#fff;border:1px solid #CBDCFA;color:var(--brand-dark);font-size:14px;
}
.form-feedback.show{display:block}

/* ============ 回放卡 ============ */
.replay-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.replay-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1280px){.replay-grid{grid-template-columns:repeat(4,1fr)}}
.card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.thumb{position:relative;aspect-ratio:4/3;background:var(--brand-light);overflow:hidden}
.thumb.wide{aspect-ratio:16/9}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card:hover .thumb img{transform:scale(1.04)}
.thumb .badge{position:absolute;top:12px;left:12px}
.thumb .duration{
  position:absolute;right:10px;bottom:10px;padding:2px 8px;border-radius:6px;
  background:rgba(16,30,51,.82);color:#fff;font-size:12px;font-weight:600;
  font-variant-numeric:tabular-nums;
}
.play-icon{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .2s ease-out;background:rgba(16,30,51,.28);
}
.card:hover .play-icon{opacity:1}
.play-icon span{
  width:48px;height:48px;border-radius:50%;background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.card-body{padding:16px 18px 18px}
.card-title{
  font-size:16px;font-weight:600;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:14px;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.news-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{display:flex;flex-direction:column}
.news-card .card-title{font-size:17px}
.empty-state{
  border:1px dashed #C6D3E8;border-radius:var(--r-card);background:#fff;
  padding:48px 24px;text-align:center;
}
.empty-state .icon{
  width:52px;height:52px;border-radius:14px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:22px;
}
.empty-state p{color:var(--text-2);font-size:15px}
.empty-state a{display:inline-block;margin-top:12px;color:var(--brand);font-weight:600;font-size:14px}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .mark{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;font-weight:700;
  transition:transform .18s ease-out;
}
.faq-item[open] summary .mark{transform:rotate(180deg)}
.faq-item[open] summary{color:var(--brand-dark)}
.faq-answer{padding:0 40px 20px 0;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 底部 CTA ============ */
.cta-banner{
  position:relative;border-radius:20px;overflow:hidden;
  background:var(--brand-light);padding:44px 24px;text-align:center;
}
@media (min-width:768px){.cta-banner{padding:60px 48px}}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-inner{position:relative;z-index:1;max-width:640px;margin:0 auto}
.cta-inner h2{font-size:22px;font-weight:700;line-height:1.5}
@media (min-width:768px){.cta-inner h2{font-size:30px}}
.cta-inner p{margin-top:12px;color:var(--text-2);font-size:15px}
.cta-inner .btn{margin-top:26px}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);color:var(--footer-text);margin-top:64px}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;padding:56px 0 40px;
}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
.footer-brand .brand-mark{background:linear-gradient(135deg,#3B7BEA,#1F5AD6)}
.footer-about{margin-top:14px;font-size:14px;line-height:1.85;color:#9FB0CE;max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--footer-text);transition:color .18s ease-out}
.footer-links a:hover{color:#fff}
.footer-sub input{
  width:100%;height:42px;padding:0 14px;border-radius:10px;background:rgba(255,255,255,.07);
  border:1px solid rgba(199,211,232,.22);color:#fff;outline:none;
  transition:border-color .18s ease-out;
}
.footer-sub input::placeholder{color:#7F90B2}
.footer-sub input:focus{border-color:#5B8DEA}
.footer-sub .btn{margin-top:12px;height:42px}
.footer-note{margin-top:12px;font-size:12px;color:#7F90B2}
.footer-bottom{
  border-top:1px solid rgba(199,211,232,.16);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8B9CBC;
}
.footer-bottom a{color:#8B9CBC}
.footer-bottom a:hover{color:#fff}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand:#1F5AD6;
  --brand-deep:#143C8F;
  --brand-light:#E8EFFC;
  --coral:#FF6A3D;
  --teal:#17B890;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E3E9F2;
  --ink:#101E33;
  --ink-2:#56657F;
  --ink-3:#8B97AC;
  --footer-bg:#0E1E3C;
  --footer-text:#C7D3E8;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow:0 1px 2px rgba(16,30,51,.04),0 8px 24px rgba(16,30,51,.06);
  --shadow-hover:0 12px 32px rgba(31,90,214,.12);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:height var(--ease),box-shadow var(--ease);
}
.header-inner{
  display:flex;align-items:center;gap:24px;height:72px;
  transition:height var(--ease);
}
.site-header.scrolled .header-inner{height:64px;}
.site-header.scrolled{box-shadow:0 6px 20px rgba(16,30,51,.06);}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:-.5px;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-light);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,60,143,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  background:none;border:none;padding:0;cursor:pointer;
  color:var(--brand);font-size:14px;font-weight:600;
  transition:gap var(--ease),color var(--ease);
}
.btn-ghost:hover{gap:10px;color:var(--brand-deep);}
.btn-outline{
  background:#fff;color:var(--brand);border-color:var(--line);
}
.btn-outline:hover{background:var(--brand-light);border-color:#CBD9F3;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-blue{background:var(--brand-light);color:var(--brand);}
.badge-coral{background:var(--coral);color:#fff;}
.badge-teal{background:var(--teal);color:#fff;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  background:#fff url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 55%,rgba(232,239,252,.86) 100%);
}
.page-hero .container{position:relative;padding-top:64px;padding-bottom:64px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C3CCDD;}
.crumb .current{color:var(--brand);font-weight:600;}
.page-hero h1{
  font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-.5px;
  max-width:820px;
}
.page-hero h1 .hl{color:var(--brand);}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.7;color:var(--ink-2);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;
  margin-top:36px;padding-top:28px;border-top:1px solid var(--line);
}
.stat-item .stat-num{font-size:32px;font-weight:700;color:var(--brand-deep);line-height:1.2;}
.stat-item .stat-num small{font-size:14px;font-weight:600;color:var(--ink-3);margin-left:4px;}
.stat-item .stat-label{font-size:13px;color:var(--ink-3);margin-top:4px;}

/* ---------- Countdown ---------- */
.countdown-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:24px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  margin-top:-36px;position:relative;z-index:2;
}
.countdown-lead{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.countdown-lead h2{font-size:18px;font-weight:600;}
.countdown-title-note{font-size:13px;color:var(--ink-3);}
.countdown{display:flex;align-items:center;gap:18px;}
.cd-cell{text-align:center;min-width:62px;}
.cd-cell .cd-num{
  font-size:38px;font-weight:700;color:var(--brand-deep);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.cd-cell .cd-unit{font-size:12px;color:var(--ink-3);letter-spacing:1px;}
.cd-sep{width:1px;height:34px;background:var(--line);}
.countdown.live .cd-num{color:var(--coral);animation:breathe 1.6s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:1;}50%{opacity:.62;}}

/* ---------- Sections ---------- */
.section{padding:80px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:36px;flex-wrap:wrap;
}
.section-head h2{
  position:relative;padding-left:14px;
  font-size:28px;font-weight:600;line-height:1.35;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--brand);border-radius:2px;
}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:8px;padding-left:14px;}

/* ---------- Timeline ---------- */
.timeline{border-top:1px solid var(--line);}
.tl-item{
  display:grid;grid-template-columns:96px 1fr;gap:28px;
  padding:30px 0;border-bottom:1px solid var(--line);
}
.tl-date{padding-top:4px;}
.tl-day{display:block;font-size:17px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.tl-time{display:block;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;margin-top:2px;}
.tl-week{display:inline-block;margin-top:8px;font-size:12px;color:var(--brand);background:var(--brand-light);border-radius:999px;padding:2px 10px;}
.tl-body{display:grid;grid-template-columns:250px 1fr;gap:24px;align-items:start;}
.tl-thumb{
  border-radius:var(--r-img);overflow:hidden;background:var(--brand-light);
  aspect-ratio:16/9;position:relative;
}
.tl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out;}
.tl-thumb:hover img{transform:scale(1.03);}
.tl-info h3{font-size:20px;font-weight:600;line-height:1.5;margin-top:10px;}
.tl-info h3 a:hover{color:var(--brand);}
.tl-desc{font-size:15px;color:var(--ink-2);margin-top:10px;}
.tl-points{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.tl-points li{
  font-size:13px;color:var(--ink-2);
  background:#F1F4FA;border-radius:999px;padding:4px 12px;
}
.tl-actions{display:flex;align-items:center;gap:20px;margin-top:16px;flex-wrap:wrap;}

/* ---------- Notice / two column ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.two-col .figure{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);background:var(--brand-light);}
.two-col .figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.two-col h2{position:relative;padding-left:14px;font-size:26px;font-weight:600;margin-bottom:18px;}
.two-col h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--brand);border-radius:2px;}
.two-col p{font-size:16px;color:var(--ink-2);margin-bottom:14px;}
.check-list{margin-top:6px;}
.check-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);margin-bottom:10px;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--brand);
}

/* ---------- Subscribe block ---------- */
.subscribe-card{
  background:var(--brand-light);border-radius:20px;
  padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}
.subscribe-card h2{font-size:26px;font-weight:600;line-height:1.45;}
.subscribe-card .sub-note{font-size:14px;color:var(--ink-2);margin-top:12px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;}
.field input{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input::placeholder{color:var(--ink-3);}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,90,214,.16);}
.field.error input{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,106,61,.14);}
.field .tip{font-size:12px;color:var(--coral);margin-top:6px;display:none;}
.field.error .tip{display:block;}
.form-feedback{
  margin-top:14px;font-size:14px;color:var(--teal);display:none;
  background:#fff;border:1px solid #CDEFE4;border-radius:var(--r-btn);padding:12px 14px;
}
.form-feedback.show{display:block;}
.privacy-note{font-size:12px;color:var(--ink-3);margin-top:12px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .icon{
  position:relative;flex:none;width:18px;height:18px;
  transition:transform var(--ease);
}
.faq-item summary .icon::before,
.faq-item summary .icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:opacity var(--ease),transform var(--ease);
}
.faq-item summary .icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-item summary .icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] summary .icon::after{transform:rotate(90deg);opacity:0;}
.faq-item[open] summary .icon{transform:rotate(180deg);}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:720px;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 80px;}
.cta-inner{
  position:relative;overflow:hidden;border-radius:20px;
  background:var(--brand-light);
  padding:48px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,90,214,.16) 0%,rgba(31,90,214,0) 70%);
}
.cta-inner h2{font-size:26px;font-weight:600;position:relative;}
.cta-inner p{font-size:15px;color:var(--ink-2);margin-top:10px;position:relative;max-width:560px;}
.cta-inner .cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-about{font-size:14px;line-height:1.85;color:#9FB0CE;max-width:320px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--footer-text);transition:color var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-sub input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid #2A3E63;background:#16294C;color:#fff;font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-sub input::placeholder{color:#7F92B4;}
.footer-sub input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,90,214,.28);}
.footer-sub .btn{margin-top:12px;}
.footer-note{font-size:12px;color:#8FA2C2;margin-top:12px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid #1E3masked;
  border-top:1px solid #1E3159;
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA2C2;
}
.footer-bottom a:hover{color:#fff;}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .tl-body{grid-template-columns:220px 1fr;}
}
@media (max-width:1024px){
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:280px;
    background:#fff;border-left:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 24px;
    transform:translateX(100%);transition:transform 220ms ease-out;
    box-shadow:-12px 0 32px rgba(16,30,51,.10);
    overflow-y:auto;z-index:70;
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{padding:12px 14px;font-size:16px;border-radius:12px;}
  .nav-link.active::after{display:none;}
  .nav-link.active{background:var(--brand-light);}
  .nav-toggle{display:flex;}
  .header-actions .btn{display:none;}
  .two-col{grid-template-columns:1fr;gap:32px;}
  .subscribe-card{grid-template-columns:1fr;gap:28px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .page-hero .container{padding-top:44px;padding-bottom:48px;}
  .page-hero h1{font-size:28px;line-height:1.36;}
  .hero-sub{font-size:15px;}
  .hero-stats{gap:24px;margin-top:28px;padding-top:22px;}
  .stat-item .stat-num{font-size:26px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .section-head p{font-size:13px;}
  .countdown-bar{padding:20px;gap:18px;margin-top:-24px;}
  .countdown{gap:10px;width:100%;justify-content:space-between;}
  .cd-cell{min-width:0;}
  .cd-cell .cd-num{font-size:28px;}
  .tl-item{grid-template-columns:1fr;gap:14px;padding:24px 0;}
  .tl-date{display:flex;align-items:center;gap:12px;padding-top:0;}
  .tl-day{font-size:16px;}
  .tl-week{margin-top:0;}
  .tl-body{grid-template-columns:1fr;gap:16px;}
  .tl-info h3{font-size:17px;}
  .two-col h2{font-size:22px;}
  .subscribe-card{padding:24px;border-radius:16px;}
  .subscribe-card h2{font-size:22px;}
  .cta-band{padding:0 0 48px;}
  .cta-inner{padding:32px 24px;}
  .cta-inner h2{font-size:22px;}
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-about{max-width:100%;}
  .footer-bottom{margin-top:36px;flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{font-size:15px;padding:16px 0;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .page-hero h1{font-size:24px;}
  .hero-stats{gap:20px;}
  .stat-item{flex:1 1 40%;}
  .tl-actions{gap:14px;}
  .btn{padding:12px 18px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --blue:#1F5AD6;
  --blue-deep:#143C8F;
  --blue-soft:#E8EFFC;
  --coral:#FF6A3D;
  --teal:#17B890;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E3E9F2;
  --ink:#101E33;
  --ink-sub:#56657F;
  --ink-mute:#8B97AC;
  --footer-bg:#0E1E3C;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-base:0 1px 2px rgba(16,30,51,.04),0 8px 24px rgba(16,30,51,.06);
  --shadow-hover:0 12px 32px rgba(31,90,214,.12);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
.icon{width:18px;height:18px;display:inline-block;vertical-align:middle;}

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

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,30,51,.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height var(--ease);}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#2E6BE6,#143C8F);
  color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;line-height:1;
  box-shadow:0 6px 16px rgba(31,90,214,.25);
}
.brand-text{font-size:17px;letter-spacing:.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;
  color:var(--ink-sub);border-radius:999px;transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--blue);background:var(--blue-soft);}
.nav-link.active{color:var(--blue);}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-6px;height:2px;
  border-radius:2px;background:var(--blue);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;place-items:center;gap:4px;
  flex-direction:column;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-sub);transition:var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  font-size:15px;font-weight:600;line-height:1;border-radius:var(--radius-btn);
  padding:12px 20px;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(31,90,214,.2);}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px);box-shadow:0 12px 32px rgba(31,90,214,.26);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(31,90,214,.2);}
.btn-secondary{background:#fff;color:var(--blue);border-color:var(--line);}
.btn-secondary:hover{background:var(--blue-soft);border-color:#C9D9F5;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--blue);padding:8px 0;border:0;}
.btn-ghost::after{content:"→";transition:transform var(--ease);display:inline-block;}
.btn-ghost:hover::after{transform:translateX(3px);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--blue);outline-offset:2px;border-radius:8px;
}

/* 面包屑 */
.crumb-bar{padding:22px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--ink-mute);line-height:1.6;}
.breadcrumb a{color:var(--ink-sub);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--blue);}
.breadcrumb .sep{margin:0 8px;color:#C3CCDB;}
.breadcrumb .current{color:var(--blue);font-weight:500;}

/* 布局 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,720px) 280px;gap:56px;
  justify-content:center;padding:24px 0 72px;align-items:start;
}
.article-main{min-width:0;}

/* 文章头部 */
.article-head{padding-bottom:8px;}
.article-head h1{font-size:34px;line-height:1.4;font-weight:700;letter-spacing:.005em;margin:6px 0 16px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--ink-mute);font-variant-numeric:tabular-nums;}
.badge{
  display:inline-flex;align-items:center;gap:5px;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.4;
}
.badge-cat{background:var(--blue-soft);color:var(--blue);}
.badge-live{background:var(--coral);color:#fff;}
.badge-replay{background:var(--teal);color:#fff;}
.article-cover{
  margin:26px 0 4px;border-radius:var(--radius-img);overflow:hidden;background:var(--blue-soft);
  aspect-ratio:16/9;border:1px solid var(--line);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* 正文 */
.article-content{font-size:17px;line-height:1.9;color:var(--ink);margin-top:28px;overflow-wrap:break-word;}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.4em;}
.article-content h2{
  font-size:22px;line-height:1.5;font-weight:600;margin:2.1em 0 .8em;
  padding-left:12px;border-left:4px solid var(--blue);border-radius:2px;
}
.article-content h3{font-size:18px;line-height:1.6;font-weight:600;margin:1.7em 0 .6em;}
.article-content h4{font-size:16px;font-weight:600;margin:1.4em 0 .5em;}
.article-content a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--blue-deep);}
.article-content strong{font-weight:600;}
.article-content ul,.article-content ol{margin:0 0 1.4em;padding-left:0;list-style:none;}
.article-content li{position:relative;padding-left:22px;margin-bottom:.55em;}
.article-content li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--blue);
}
.article-content ol{counter-reset:artol;}
.article-content ol li{counter-increment:artol;padding-left:28px;}
.article-content ol li::before{
  content:counter(artol);background:transparent;color:var(--blue);font-weight:700;
  width:auto;height:auto;top:0;left:0;font-size:15px;font-variant-numeric:tabular-nums;
}
.article-content blockquote{
  background:var(--blue-soft);border-left:3px solid var(--blue);border-radius:0 12px 12px 0;
  padding:16px 20px;margin:1.6em 0;color:var(--ink-sub);font-size:16px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--radius-img);margin:1.5em auto;height:auto;}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{font-size:13px;color:var(--ink-mute);text-align:center;margin-top:10px;line-height:1.6;}
.article-content .table-wrap{width:100%;overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);border-radius:12px;}
.article-content table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px;}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);}
.article-content th{background:var(--blue-soft);color:var(--blue-deep);font-weight:600;}
.article-content tr:last-child td{border-bottom:0;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row .tag-label{font-size:13px;color:var(--ink-mute);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:13px;
  background:var(--blue-soft);color:var(--blue);font-weight:500;transition:background var(--ease),color var(--ease);
}
.tag:hover{background:#D8E5FB;color:var(--blue-deep);}

/* 上一篇 / 下一篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:34px;}
.post-nav a{
  display:block;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease);
}
.post-nav a:hover{background:#fff;border-color:#C9D9F5;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.pn-label{font-size:12px;color:var(--ink-mute);margin-bottom:8px;}
.pn-title{font-size:15px;font-weight:600;line-height:1.6;color:var(--ink);}
.post-nav .pn-next{text-align:right;}

/* 板块标题 */
.section-block{margin-top:56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.h2-bar{position:relative;padding-left:14px;font-size:22px;line-height:1.5;font-weight:600;}
.h2-bar::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:2px;background:var(--blue);}
.section-desc{font-size:14px;color:var(--ink-sub);margin-top:8px;}

/* 卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-base);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6E2F8;}
.card-thumb{position:relative;aspect-ratio:16/9;background:var(--blue-soft);overflow:hidden;}
.card-thumb img{width:100%;height:100%;object-fit:cover;}
.card-thumb .badge{position:absolute;left:12px;top:12px;}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.card-title{
  font-size:16px;font-weight:600;line-height:1.55;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;line-height:1.7;color:var(--ink-sub);margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{margin-top:14px;font-size:13px;color:var(--ink-mute);font-variant-numeric:tabular-nums;}

/* FAQ */
.faq-list{max-width:800px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 34px 18px 0;position:relative;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--blue);transition:transform var(--ease);
}
.faq-item[open] summary::after{content:"−";}
.faq-item p{font-size:15px;line-height:1.8;color:var(--ink-sub);padding:0 0 18px;}
.faq-item p + p{padding-top:0;}

/* 侧栏 */
.sidebar{min-width:0;}
.sidebar-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-base);}
.side-title{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px;padding-left:10px;border-left:3px solid var(--blue);line-height:1.4;}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li{padding:13px 0;border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list li:first-child{padding-top:0;}
.side-list a{display:block;font-size:15px;font-weight:500;line-height:1.65;color:var(--ink);transition:color var(--ease);}
.side-list a:hover{color:var(--blue);}
.side-time{font-size:13px;color:var(--ink-mute);margin-top:6px;font-variant-numeric:tabular-nums;}
.side-cta{background:var(--blue-soft);border:0;border-radius:var(--radius-card);padding:22px;}
.side-cta .side-cta-title{font-size:16px;font-weight:600;color:var(--blue-deep);margin-bottom:8px;}
.side-cta p{font-size:14px;line-height:1.75;color:var(--ink-sub);margin-bottom:16px;}

/* 空态 */
.empty-state{
  border:1px dashed #C9D9F5;background:#fff;border-radius:var(--radius-card);
  padding:48px 28px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;background:var(--blue-soft);color:var(--blue);
  display:grid;place-items:center;margin:0 auto 16px;font-size:22px;font-weight:700;
}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-sub);margin-bottom:20px;}

/* 底部 CTA */
.cta-band{
  margin:64px 0 0;border-radius:20px;padding:44px;
  background-image:linear-gradient(rgba(232,239,252,.94),rgba(232,239,252,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  border:1px solid #D9E4F8;
}
.cta-band h2{font-size:24px;line-height:1.5;font-weight:600;color:var(--blue-deep);}
.cta-band p{font-size:15px;line-height:1.8;color:var(--ink-sub);margin-top:8px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:#C7D3E8;margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#3D7BEF,#1F5AD6);box-shadow:none;}
.footer-about{font-size:14px;line-height:1.85;color:#9FB0CE;max-width:330px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:#C7D3E8;transition:color var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-sub input{
  width:100%;height:44px;border-radius:var(--radius-btn);border:1px solid #24365C;background:#152C55;
  color:#fff;padding:0 14px;font-size:14px;margin-bottom:12px;transition:border-color var(--ease),box-shadow var(--ease);
}
.footer-sub input::placeholder{color:#7D8DB0;}
.footer-sub input:focus{outline:none;border-color:#3D7BEF;box-shadow:0 0 0 3px rgba(61,123,239,.25);}
.footer-note{font-size:12px;line-height:1.7;color:#8B9BBC;margin-top:12px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid #1D2F52;padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8B9BBC;
}
.footer-bottom a{color:#C7D3E8;transition:color var(--ease);}
.footer-bottom a:hover{color:#fff;}

/* 响应式 */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:40px;}
  .footer-grid{gap:32px;}
}
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:60px;right:0;width:min(80vw,320px);
    height:calc(100vh - 60px);flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-left:1px solid var(--line);padding:18px 16px;
    transform:translateX(102%);transition:transform 240ms ease-out;
    box-shadow:-12px 0 32px rgba(16,30,51,.10);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:12px 14px;font-size:16px;border-radius:12px;}
  .nav-link.active{background:var(--blue-soft);}
  .nav-link.active::after{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:60px;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:48px;padding:20px 0 56px;}
  .sidebar-inner{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .brand-text{font-size:16px;}
  .article-head h1{font-size:26px;line-height:1.45;}
  .article-content{font-size:17px;}
  .article-content h2{font-size:20px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .pn-next{text-align:left;}
  .card-grid{grid-template-columns:1fr;}
  .section-block{margin-top:44px;}
  .h2-bar{font-size:20px;}
  .cta-band h2{font-size:20px;}
  .site-footer{padding:48px 0 0;margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-about{max-width:none;}
}
@media (max-width:520px){
  .header-actions .btn-sm{padding:8px 12px;font-size:13px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .empty-state{padding:36px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --brand:#1F5AD6;
  --brand-dark:#143C8F;
  --brand-deep:#0E1E3C;
  --brand-soft:#E8EFFC;
  --accent:#FF6A3D;
  --success:#17B890;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E3E9F2;
  --text:#101E33;
  --text-2:#56657F;
  --text-3:#8B97AC;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,30,51,.04),0 8px 24px rgba(16,30,51,.06);
  --shadow-hover:0 12px 32px rgba(31,90,214,.12);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}
.section{padding:80px 0}
.section-tight{padding:56px 0}
@media(max-width:768px){
  .section{padding:48px 0}
  .section-tight{padding:36px 0}
}
@media(max-width:640px){
  .container{padding:0 16px}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(16,30,51,.05)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;transition:height .18s ease}
.site-header.scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:17px;font-weight:800;
  box-shadow:0 6px 16px rgba(31,90,214,.28);
}
.brand-text{font-size:18px;color:var(--text)}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);margin:3px auto;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
@media(max-width:900px){
  .main-nav{
    position:fixed;top:0;right:0;height:100%;width:282px;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 28px;transform:translateX(105%);
    transition:transform .28s ease;box-shadow:-18px 0 44px rgba(16,30,51,.14);
    z-index:90;overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0)}
  .nav-link{padding:12px 14px;font-size:16px;border-radius:10px}
  .nav-link.active{background:var(--brand-soft)}
  .nav-link.active::after{display:none}
  .nav-toggle{display:grid;z-index:95}
  .header-actions .btn-sm{display:none}
}

/* ---------- buttons ---------- */
.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;cursor:pointer;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(31,90,214,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(20,60,143,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(20,60,143,.2)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);border-color:#CBDCF7}
.btn-link{background:none;border:none;color:var(--brand);font-weight:600;padding:0;height:auto;display:inline-flex;align-items:center;gap:6px}
.btn-link:hover{gap:10px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.2px}
.badge-blue{background:var(--brand-soft);color:var(--brand)}
.badge-accent{background:var(--accent);color:#fff}
.badge-green{background:var(--success);color:#fff}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:20px 0 0}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3CDDE}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ---------- page hero ---------- */
.page-hero{position:relative;padding:56px 0 64px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.90),rgba(255,255,255,.95)),var(--hero-img);
  background-size:cover;background-position:center;
  z-index:0;
}
.page-hero > .container{position:relative;z-index:1}
.hero-title{font-size:38px;line-height:1.25;font-weight:700;letter-spacing:-.4px}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text-2);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.hero-stat .k{font-size:26px;font-weight:700;color:var(--brand-dark);line-height:1.2}
.hero-stat .l{font-size:13px;color:var(--text-3);margin-top:4px}
@media(max-width:768px){
  .hero-title{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:24px}
}

/* ---------- section heading ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:14px;font-size:28px;font-weight:600;line-height:1.35}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand)}
.sec-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:760px}
@media(max-width:768px){
  .sec-title{font-size:22px}
  .sec-head{margin-bottom:24px}
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--shadow-1)}
.step{position:relative;padding-right:24px;text-align:left}
.step::before{content:"";position:absolute;top:17px;left:44px;right:8px;height:2px;background:var(--line)}
.step:last-child::before{display:none}
.step-dot{
  width:36px;height:36px;border-radius:var(--r-pill);display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;position:relative;z-index:1;
}
.step h3{font-size:16px;font-weight:600;margin-top:14px}
.step p{font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.75}
@media(max-width:900px){
  .steps{grid-template-columns:1fr 1fr;gap:24px 20px}
  .step{padding-right:0}
  .step::before{display:none}
}
@media(max-width:640px){
  .steps{grid-template-columns:1fr;padding:24px 20px}
  .step{display:flex;gap:14px;align-items:flex-start;padding-left:0}
  .step h3{margin-top:0}
  .step-body{padding-top:2px}
}

/* ---------- form panel ---------- */
.form-panel{background:var(--brand-soft);border-radius:20px;border:1px solid #D7E3FA;padding:32px}
.form-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;font-weight:500}
.field input[type="text"],
.field select{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:10px;
  background:#fff;transition:border-color .18s ease,box-shadow .18s ease;font-size:15px;
}
.field input[type="text"]:focus,
.field select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,90,214,.16)}
.field.error input[type="text"],
.field.error select{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,106,61,.14)}
.field .err{display:none;font-size:12px;color:var(--accent);margin-top:6px}
.field.error .err{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);margin:4px 0 20px}
.check-row input{margin-top:3px;accent-color:var(--brand)}
.form-note{font-size:12px;color:var(--text-3);margin-top:12px;line-height:1.7}
.form-feedback{
  display:none;margin-top:18px;padding:14px 16px;border-radius:12px;
  background:#fff;border:1px solid #CFE3D9;color:#0F7B60;font-size:14px;
}
.form-feedback.show{display:block}
.notice-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(31,90,214,.14);font-size:14px;color:var(--text-2)}
.notice-list li:last-child{border-bottom:none}
.notice-list i{color:var(--brand);margin-top:5px;font-size:13px}
.notice-list strong{display:block;color:var(--text);font-weight:600;font-size:15px;margin-bottom:2px}
@media(max-width:900px){
  .form-grid{grid-template-columns:1fr;gap:24px}
  .form-panel{padding:24px 20px}
}

/* ---------- channel rows ---------- */
.channel-row{display:flex;align-items:flex-start;gap:20px;padding:24px 0;border-bottom:1px solid var(--line)}
.channel-row:last-child{border-bottom:none}
.channel-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:17px;
}
.channel-row h3{font-size:18px;font-weight:600}
.channel-row p{font-size:15px;color:var(--text-2);margin-top:6px}
.channel-meta{font-size:13px;color:var(--text-3);margin-top:8px}
@media(max-width:640px){
  .channel-row{gap:14px}
}

/* ---------- timeline ---------- */
.timeline{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:8px 24px}
.tl-item{display:grid;grid-template-columns:132px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.tl-item:last-child{border-bottom:none}
.tl-time{font-size:13px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums;padding-top:3px}
.tl-item h3{font-size:17px;font-weight:600}
.tl-item p{font-size:14px;color:var(--text-2);margin-top:6px}
@media(max-width:640px){
  .timeline{padding:4px 18px}
  .tl-item{grid-template-columns:1fr;gap:6px}
}

/* ---------- figure ---------- */
.figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-1)}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.figure figcaption{padding:14px 18px;font-size:13px;color:var(--text-3)}

/* ---------- faq ---------- */
.faq-wrap{max-width:800px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:none;border:none;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:15px;font-weight:600;
  transition:transform .18s ease,background .18s ease,color .18s ease;
}
.faq-item.open .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:720px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;border-radius:20px;overflow:hidden;
  padding:52px 40px;border:1px solid #D7E3FA;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(232,239,252,.94),rgba(232,239,252,.97)),var(--cta-img);
  background-size:cover;background-position:center;z-index:0;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:26px;font-weight:600;line-height:1.4}
.cta-inner p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:560px}
@media(max-width:768px){
  .cta-band{padding:32px 22px}
  .cta-inner h2{font-size:21px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#C7D3E8;margin-top:80px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2C6BE8,#143C8F)}
.footer-about{font-size:14px;line-height:1.85;color:#9FB0CE;max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#9FB0CE;transition:color .18s ease}
.footer-links a:hover{color:#fff}
.footer-sub input{
  width:100%;height:44px;padding:0 14px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:#7C8FB3}
.footer-sub input:focus{outline:none;border-color:#4B7BE5;box-shadow:0 0 0 3px rgba(75,123,229,.28)}
.footer-sub .btn{margin-top:12px}
.footer-note{font-size:12px;color:#7C8FB3;margin-top:10px;line-height:1.7}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8B9DBC;
}
.footer-bottom a{color:#C7D3E8}
.footer-bottom a:hover{color:#fff}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:44px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#1F5AD6;
  --brand-dark:#143C8F;
  --brand-light:#E8EFFC;
  --accent:#FF6A3D;
  --success:#17B890;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E3E9F2;
  --text:#101E33;
  --text-2:#56657F;
  --text-3:#8B97AC;
  --footer-bg:#0E1E3C;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-base:0 1px 2px rgba(16,30,51,.04),0 8px 24px rgba(16,30,51,.06);
  --shadow-hover:0 12px 32px rgba(31,90,214,.12);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,90,214,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-outline:hover{background:var(--brand-light);border-color:#C6D8F7}
.btn-outline:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:0;
  color:var(--brand);font-size:15px;font-weight:600;cursor:pointer;
}
.btn-ghost::after{content:"→";transition:transform var(--ease)}
.btn-ghost:hover{color:var(--brand-dark)}
.btn-ghost:hover::after{transform:translateX(4px)}
.btn-ghost:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1}
.badge-blue{background:var(--brand-light);color:var(--brand)}
.badge-orange{background:var(--accent);color:#fff}
.badge-green{background:var(--success);color:#fff}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(16,30,51,.06)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--ease)}
.site-header.scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,#2C6BE8,#143C8F);
  color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;
  box-shadow:0 6px 14px rgba(31,90,214,.28);
}
.brand-text{font-size:17px;letter-spacing:.2px;color:var(--text)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color var(--ease),background-color var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-light)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;padding:0;
  background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer;
  transition:background-color var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:var(--brand-light);border-color:#C6D8F7}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;background:var(--text);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center right/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.92) 55%,rgba(246,248,252,.88) 100%);
}
.page-hero .hero-inner{position:relative;z-index:1;padding:64px 0 56px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{color:var(--text-3);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3CDDD}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-hero h1{font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-.4px;max-width:860px}
.page-hero .lead{margin-top:18px;max-width:760px;font-size:17px;line-height:1.85;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line)}
.stat-value{font-size:28px;font-weight:700;color:var(--brand-dark);line-height:1.2}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- 板块 ---------- */
.section{padding:80px 0}
.section-plain{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.section-title{
  font-size:28px;font-weight:600;line-height:1.35;padding-left:14px;
  border-left:4px solid var(--brand);
}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-2);padding-left:18px}

/* ---------- 图文交错 ---------- */
.alt-list{border-top:1px solid var(--line)}
.alt-article{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:52px;align-items:center;padding:52px 0;border-bottom:1px solid var(--line);
}
.alt-article.reverse .alt-media{order:2}
.alt-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-md);background:var(--brand-light)}
.alt-index{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);margin-bottom:12px;
}
.alt-article h2{
  font-size:24px;font-weight:600;line-height:1.4;margin-bottom:16px;
  padding-left:12px;border-left:4px solid var(--brand);
}
.alt-article p{font-size:16.5px;line-height:1.9;color:var(--text-2);margin-bottom:14px}
.alt-article .alt-foot{margin-top:8px}

/* ---------- 数据速览 ---------- */
.kpi-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--surface);overflow:hidden;
}
.kpi{padding:26px 24px;border-right:1px solid var(--line)}
.kpi:nth-child(4n){border-right:none}
.kpi-value{font-size:30px;font-weight:700;color:var(--brand-dark);line-height:1.2}
.kpi-value small{font-size:14px;font-weight:600;color:var(--text-3);margin-left:4px}
.kpi-label{margin-top:8px;font-size:14px;color:var(--text-2)}
.kpi-note{margin-top:18px;font-size:13px;color:var(--text-3)}

/* ---------- 索引列表 ---------- */
.index-list{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);overflow:hidden}
.index-row{
  display:grid;grid-template-columns:170px minmax(0,1fr) 180px 100px;
  gap:20px;align-items:center;padding:18px 24px;
  border-bottom:1px solid var(--line);
}
.index-row:last-child{border-bottom:none}
.index-row:hover{background:#FBFCFE}
.index-time{font-size:13px;color:var(--text-3);font-weight:600}
.index-title{font-size:16px;font-weight:600;color:var(--text);transition:color var(--ease)}
.index-row:hover .index-title{color:var(--brand)}
.index-scene{font-size:13.5px;color:var(--text-2)}
.index-status{justify-self:start}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--text);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform var(--ease);
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.faq-body{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:720px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background:var(--brand-light);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-3.png") center right/cover no-repeat;
  opacity:.14;
}
.cta-content{position:relative;z-index:1;max-width:640px}
.cta-content h2{font-size:26px;font-weight:600;line-height:1.4;color:var(--brand-dark)}
.cta-content p{margin-top:12px;font-size:15.5px;color:var(--text-2)}
.cta-actions{position:relative;z-index:1;display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:#C7D3E8;margin-top:80px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;
  padding:60px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
.footer-about{margin-top:16px;font-size:14px;line-height:1.9;color:#9FB0CE;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#C7D3E8;transition:color var(--ease)}
.footer-links a:hover{color:#fff}
.footer-sub input{
  width:100%;height:44px;padding:0 14px;margin-bottom:12px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-sm);color:#fff;font-size:14px;
  transition:border-color var(--ease),background-color var(--ease);
}
.footer-sub input::placeholder{color:#8B9CBB}
.footer-sub input:focus{outline:none;border-color:#5B8DEF;background:rgba(255,255,255,.12)}
.footer-note{margin-top:12px;font-size:12.5px;color:#8B9CBB;line-height:1.7}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8B9CBB;
}
.footer-bottom a{color:#C7D3E8;transition:color var(--ease)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:280px;
    flex-direction:column;align-items:stretch;gap:6px;
    margin-left:0;padding:88px 20px 24px;
    background:#fff;box-shadow:-12px 0 32px rgba(16,30,51,.12);
    transform:translateX(102%);transition:transform 240ms ease-out;
    overflow-y:auto;z-index:90;
  }
  .main-nav.open{transform:translateX(0)}
  .nav-link{padding:12px 14px;font-size:15px;border-radius:10px}
  .nav-link.active{background:var(--brand-light)}
  .nav-link.active::after{display:none}
  .nav-toggle{display:block;z-index:95}
  .page-hero .hero-inner{padding:48px 0 44px}
  .page-hero h1{font-size:32px}
  .alt-article{grid-template-columns:1fr;gap:24px;padding:40px 0}
  .alt-article.reverse .alt-media{order:0}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .kpi{border-bottom:1px solid var(--line)}
  .kpi:nth-child(2n){border-right:none}
  .kpi:nth-child(n+3){border-bottom:none}
  .index-row{grid-template-columns:150px minmax(0,1fr) 120px}
  .index-scene{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .page-hero h1{font-size:28px;line-height:1.35}
  .page-hero .lead{font-size:15.5px}
  .section-title{font-size:22px}
  .section-sub{padding-left:18px;font-size:14px}
  .hero-stats{gap:24px}
  .stat-value{font-size:24px}
  .alt-article h2{font-size:20px}
  .alt-article p{font-size:16px}
  .kpi-value{font-size:26px}
  .cta-band{padding:32px 22px;flex-direction:column;align-items:flex-start;gap:24px}
  .cta-content h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .index-row{grid-template-columns:1fr;gap:8px;padding:16px 18px}
  .index-status{justify-self:start}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .header-actions .btn-sm{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --primary:#1F5AD6;
  --primary-dark:#143C8F;
  --primary-light:#E8EFFC;
  --coral:#FF6A3D;
  --green:#17B890;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --border:#E3E9F2;
  --text:#101E33;
  --text-2:#56657F;
  --text-3:#8B97AC;
  --footer:#0E1E3C;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-base:0 1px 2px rgba(16,30,51,.04), 0 8px 24px rgba(16,30,51,.06);
  --shadow-hover:0 12px 32px rgba(31,90,214,.12);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  transition:height var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,30,51,.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,#1F5AD6,#143C8F);
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(31,90,214,.28);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap;color:var(--text);}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;justify-content:center;}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:background var(--ease),color var(--ease);
  white-space:nowrap;
}
.nav-link:hover{background:var(--primary-light);color:var(--primary);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;position:relative;z-index:70;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--border);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background var(--ease);
}
.nav-toggle:hover{background:var(--primary-light);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all var(--ease);white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,214,.22);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,90,214,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(31,90,214,.2);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--border);}
.btn-outline:hover{background:var(--primary-light);border-color:#C9D9F7;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--primary);padding:0 6px;height:auto;}
.btn-ghost::after{content:"→";margin-left:6px;transition:transform var(--ease);}
.btn-ghost:hover::after{transform:translateX(4px);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;}
.btn-block{width:100%;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.4;
}
.badge-blue{background:var(--primary-light);color:var(--primary);}
.badge-coral{background:var(--coral);color:#fff;}
.badge-green{background:var(--green);color:#fff;}

/* ---------- Hero ---------- */
.category-hero{
  position:relative;
  padding:56px 0 44px;
  background-image:linear-gradient(rgba(255,255,255,.93),rgba(255,255,255,.96)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a{color:var(--text-3);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:#C3CCDB;}
.breadcrumb .current{color:var(--primary);font-weight:600;}
.category-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;max-width:820px;}
.category-hero .hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:680px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:32px;}
.stat-item .stat-value{font-size:28px;font-weight:700;color:var(--primary-dark);line-height:1.2;}
.stat-item .stat-label{font-size:13px;color:var(--text-3);margin-top:4px;}

/* ---------- Section ---------- */
.section{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-title{
  position:relative;padding-left:14px;
  font-size:28px;line-height:1.35;font-weight:600;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;
  width:4px;border-radius:2px;background:var(--primary);
}
.section-desc{margin-top:10px;padding-left:14px;font-size:15px;color:var(--text-2);max-width:720px;}

/* ---------- Filter chips ---------- */
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding:4px 0 12px;
  scrollbar-width:thin;
}
.filter-bar::-webkit-scrollbar{height:6px;}
.filter-bar::-webkit-scrollbar-thumb{background:#D6DEEB;border-radius:999px;}
.chip{
  flex:0 0 auto;
  padding:8px 18px;border-radius:999px;
  border:1px solid var(--border);background:#fff;
  font-size:14px;font-weight:500;color:var(--text-2);
  cursor:pointer;transition:all var(--ease);white-space:nowrap;
}
.chip:hover{border-color:#C9D9F7;background:var(--primary-light);color:var(--primary);}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,214,.22);}
.chip:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

/* ---------- Replay grid ---------- */
.replay-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:12px;}
.replay-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-base);
  transition:transform var(--ease),box-shadow var(--ease);
  display:flex;flex-direction:column;
}
.replay-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.replay-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--primary-light);}
.replay-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 320ms ease-out;}
.replay-card:hover .replay-thumb img{transform:scale(1.04);}
.thumb-badge{position:absolute;top:12px;left:12px;}
.thumb-duration{
  position:absolute;right:12px;bottom:12px;
  padding:3px 8px;border-radius:6px;
  background:rgba(16,30,51,.72);color:#fff;
  font-size:12px;font-weight:600;
}
.play-icon{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);
  width:52px;height:52px;border-radius:50%;
  background:rgba(255,255,255,.9);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(16,30,51,.18);
  opacity:0;transition:opacity var(--ease),transform var(--ease);
  font-size:18px;
}
.replay-card:hover .play-icon{opacity:1;transform:translate(-50%,-50%) scale(1);}
.replay-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.replay-body h3{
  font-size:17px;line-height:1.55;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.replay-body p{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.replay-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.empty-hint{
  display:none;
  padding:48px 24px;border:1px dashed #C9D9F7;border-radius:var(--radius-card);
  background:#fff;text-align:center;color:var(--text-2);font-size:15px;
}

/* ---------- Pager ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:40px;flex-wrap:wrap;}
.page-btn{
  min-width:42px;height:42px;padding:0 14px;border-radius:10px;
  border:1px solid var(--border);background:#fff;color:var(--text-2);
  font-size:14px;font-weight:600;cursor:pointer;transition:all var(--ease);
}
.page-btn:hover{border-color:#C9D9F7;background:var(--primary-light);color:var(--primary);}
.page-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.page-btn.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(31,90,214,.22);}
.page-btn[disabled]{opacity:.45;cursor:not-allowed;}
.page-ellipsis{color:var(--text-3);font-size:14px;padding:0 4px;}

/* ---------- Feature split ---------- */
.feature{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:20px;
  padding:36px;box-shadow:var(--shadow-base);
}
.feature-media{border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/10;background:var(--primary-light);}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature h2{position:relative;padding-left:14px;font-size:26px;line-height:1.4;font-weight:600;margin-bottom:16px;}
.feature h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary);}
.feature p{font-size:15.5px;line-height:1.8;color:var(--text-2);margin-bottom:14px;}
.check-list{display:grid;gap:12px;margin-top:18px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7;}
.check-list li::before{
  content:"✓";flex:0 0 auto;color:var(--green);font-weight:700;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;}
.faq-item{border-bottom:1px solid var(--border);background:transparent;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;font-size:16px;font-weight:600;line-height:1.6;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:500;color:var(--primary);
  transition:transform var(--ease);
}
.faq-item[open] summary{color:var(--primary);}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}
.faq-answer{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{margin:0 auto 72px;max-width:1200px;padding:0 24px;}
.cta-inner{
  background:linear-gradient(135deg,#E8EFFC,#F4F8FF);
  border:1px solid #DCE8FB;border-radius:20px;
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-inner h2{font-size:26px;line-height:1.4;font-weight:600;}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--footer);color:#C7D3E8;padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.85;color:#9FB0CE;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#9FB0CE;transition:color var(--ease);}
.footer-links a:hover{color:#fff;}
.footer-sub input{
  width:100%;height:44px;border-radius:10px;padding:0 14px;
  border:1px solid #26395C;background:#132545;color:#fff;
  font-size:14px;outline:none;transition:border var(--ease),box-shadow var(--ease);
}
.footer-sub input::placeholder{color:#6C7F9F;}
.footer-sub input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(31,90,214,.35);}
.footer-sub .btn{margin-top:12px;}
.footer-note{margin-top:12px;font-size:12.5px;color:#7E90AF;line-height:1.7;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid #1B2E4D;font-size:13px;color:#7E90AF;
}
.footer-bottom a{color:#9FB0CE;transition:color var(--ease);}
.footer-bottom a:hover{color:#fff;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .replay-grid{grid-template-columns:repeat(2,1fr);}
  .feature{grid-template-columns:1fr;gap:28px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .category-hero h1{font-size:32px;}
  .main-nav{
    position:fixed;top:72px;right:0;
    width:280px;height:calc(100vh - 72px);
    background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:6px;padding:24px 20px;
    transform:translateX(102%);transition:transform 240ms ease-out;
    box-shadow:-12px 0 32px rgba(16,30,51,.1);
    border-left:1px solid var(--border);
    z-index:60;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav .nav-link{padding:12px 16px;border-radius:12px;font-size:15.5px;}
  .main-nav .nav-link.active::after{display:none;}
  .main-nav .nav-link.active{background:var(--primary-light);}
  .nav-toggle{display:flex;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .category-hero{padding:36px 0 32px;}
  .category-hero h1{font-size:28px;line-height:1.35;}
  .category-hero .hero-sub{font-size:15.5px;}
  .hero-stats{gap:24px;margin-top:24px;}
  .stat-item .stat-value{font-size:22px;}
  .section-title{font-size:22px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .replay-grid{grid-template-columns:1fr;}
  .cta-band{padding:0 16px;margin-bottom:56px;}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .brand-text{font-size:16px;}
  .header-inner{height:60px;}
  .main-nav{top:60px;height:calc(100vh - 60px);}
  .header-actions .btn-sm{padding:0 12px;font-size:13px;}
}
@media (max-width:399px){
  .brand-text{display:none;}
  .brand-text.is-mobile-show{display:inline;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}