/* roulang page: index */
:root{
  --c-primary:#23408E;
  --c-primary-dark:#16295E;
  --c-primary-hover:#1B3372;
  --c-blue:#3A6CF4;
  --c-accent:#12A8AE;
  --c-accent-soft:#E4F6F7;
  --c-orange:#F08A24;
  --c-bg:#F5F8FD;
  --c-card:#FFFFFF;
  --c-band:#EEF3FC;
  --c-border:#E3E9F5;
  --c-divider:#EDF1F8;
  --c-text:#26324A;
  --c-muted:#68758F;
  --c-white:#FFFFFF;
  --c-success:#22A06B;
  --c-warning:#E0A030;
  --c-error:#D9534F;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --r-img:16px;
  --sh-card:0 6px 24px rgba(28,48,96,.08);
  --sh-card-hover:0 12px 32px rgba(28,48,96,.14);
  --sh-header:0 8px 24px rgba(28,48,96,.08);
  --container:1200px;
  --t:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;line-height:1.7;color:var(--c-text);background:var(--c-bg);
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3{line-height:1.35;font-weight:700;letter-spacing:0}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--c-blue);outline-offset:2px}
.num{font-variant-numeric:tabular-nums;font-weight:600}

/* 公告条 */
.announce{background:var(--c-primary-dark);color:rgba(255,255,255,.92);font-size:13px}
.announce-inner{display:flex;align-items:center;justify-content:center;gap:12px;min-height:34px;padding:4px 42px 4px 20px;position:relative;text-align:center}
.announce strong{color:#fff}
.announce-close{position:absolute;right:14px;top:50%;transform:translateY(-50%);width:22px;height:22px;border:0;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;line-height:1;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background var(--t)}
.announce-close:hover{background:rgba(255,255,255,.3)}
.announce.is-hidden{display:none}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid var(--c-border);transition:box-shadow var(--t)}
.site-header.is-stuck{box-shadow:var(--sh-header)}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;height:74px}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-side--right{gap:18px}
.nav-link{position:relative;font-size:15px;color:var(--c-text);padding:4px 0;transition:color var(--t);white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--c-primary);transition:width var(--t)}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{width:100%}
.brand{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:9px;font-size:18px;font-weight:700;color:var(--c-primary-dark);white-space:nowrap}
.brand-mark{width:24px;height:24px;color:var(--c-blue);flex:none}
.brand-text em{font-style:normal;color:var(--c-primary);font-weight:600;font-size:16px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0 10px;border:1px solid var(--c-border);border-radius:var(--r-btn);background:#fff;cursor:pointer;transition:border-color var(--t),background var(--t)}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-primary-dark);transition:transform var(--t),opacity var(--t)}
.nav-toggle:hover{border-color:var(--c-primary);background:var(--c-band)}
.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)}
.mobile-panel{display:none;max-height:0;overflow:hidden;background:#fff;transition:max-height .3s ease}
.mobile-panel.is-open{max-height:560px;border-top:1px solid var(--c-border)}
.mobile-panel nav{display:flex;flex-direction:column;padding:8px 20px 18px}
.mobile-panel a{font-size:16px;line-height:52px;border-bottom:1px solid var(--c-divider);transition:color var(--t),padding-left var(--t)}
.mobile-panel a:hover{color:var(--c-primary);padding-left:6px}
.mobile-panel .btn{margin-top:14px;width:100%}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:600;cursor:pointer;transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:0 8px 20px rgba(35,64,142,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(35,64,142,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-loading{opacity:.85;cursor:progress;transform:none}
.btn.is-loading::after{content:"";width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.link-more{position:relative;display:inline-block;font-size:15px;font-weight:600;color:var(--c-primary);padding-bottom:2px}
.link-more::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--c-primary);transition:width var(--t)}
.link-more:hover::after{width:100%}

/* 区块 */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--band{background:var(--c-band)}
.sec-head{margin-bottom:32px;max-width:720px}
.sec-head h2{font-size:clamp(22px,2.4vw,30px)}
.sec-head p{margin-top:10px;font-size:15px;color:var(--c-muted)}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#F7FAFF 0%,#F5F8FD 100%);padding:72px 0 84px}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(35,64,142,.13) 1px,transparent 1px);background-size:24px 24px;opacity:.42;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1.02fr;gap:56px;align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-badge);background:var(--c-accent-soft);color:#0C7B80;font-size:13px;font-weight:600;margin-bottom:20px}
.hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--c-accent);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.hero h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;color:var(--c-primary-dark)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--c-muted);max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{margin-top:16px;font-size:13px;color:var(--c-muted)}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;background:#DCE6F8;box-shadow:var(--sh-card);aspect-ratio:16/9}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-badge{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-badge);background:rgba(22,41,94,.86);color:#fff;font-size:13px;font-weight:600;backdrop-filter:blur(2px)}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--c-orange)}

/* 倒计时 */
.countdown-band{background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.countdown{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;padding-top:26px;padding-bottom:26px}
.cd-info{min-width:220px}
.cd-title{font-size:16px;font-weight:700;color:var(--c-primary-dark)}
.cd-meta{margin-top:6px;font-size:13px;color:var(--c-muted)}
.cd-grid{display:flex;align-items:center;gap:14px}
.cd-cell{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:64px;padding:10px 8px;border-radius:12px;background:var(--c-band);border:1px solid var(--c-border)}
.cd-num{font-size:clamp(24px,3vw,34px);line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums;font-weight:600}
.cd-label{font-size:12px;color:var(--c-muted)}
.cd-sep{font-size:22px;font-weight:700;color:var(--c-muted);transform:translateY(-8px)}
.cd-status{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-badge);font-size:13px;font-weight:600;background:rgba(35,64,142,.08);color:var(--c-primary)}
.cd-status--live{background:rgba(240,138,36,.14);color:#B6650D}
.cd-status--live i{width:8px;height:8px;border-radius:50%;background:var(--c-orange);animation:pulse 1.3s infinite}
.cd-status--over{background:#EDF1F8;color:var(--c-muted)}

/* 看点列表 */
.hl-list{border-top:1px solid var(--c-divider)}
.hl-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--c-divider);transition:background var(--t)}
.hl-item:hover{background:rgba(35,64,142,.03)}
.hl-num{flex:none;width:38px;height:38px;border-radius:50%;border:1.5px solid var(--c-primary);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;transition:background var(--t),color var(--t)}
.hl-item:hover .hl-num{background:var(--c-primary);color:#fff}
.hl-item h3{font-size:16px;font-weight:600}
.hl-item p{margin-top:6px;font-size:14px;color:var(--c-muted)}

/* 订阅 */
.sub-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center}
.sub-copy h2{font-size:clamp(22px,2.4vw,28px)}
.sub-copy p{margin-top:12px;font-size:15px;color:var(--c-muted)}
.sub-form{display:flex;gap:12px}
.sub-input{flex:1;height:48px;padding:0 16px;border-radius:var(--r-input);border:1px solid var(--c-border);background:#fff;transition:border-color var(--t),box-shadow var(--t)}
.sub-input::placeholder{color:#9AA6BC}
.sub-input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(58,108,244,.14)}
.sub-msg{min-height:22px;margin-top:12px;font-size:13px}
.sub-msg.is-ok{color:var(--c-success)}
.sub-msg.is-error{color:var(--c-error)}
.sub-note{margin-top:4px;font-size:12px;color:var(--c-muted)}

/* 回放卡片 */
.replay-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.replay-card{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t)}
.replay-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card-hover)}
.replay-cover{position:relative;aspect-ratio:16/9;background:#DCE6F8;overflow:hidden}
.replay-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.replay-card:hover .replay-cover img{transform:scale(1.04)}
.play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:54px;height:54px;border-radius:50%;background:rgba(255,255,255,.82);display:flex;align-items:center;justify-content:center;transition:transform var(--t),background var(--t)}
.replay-card:hover .play-btn{transform:translate(-50%,-50%) scale(1.08);background:#fff}
.play-btn svg{width:18px;height:18px;color:var(--c-primary);margin-left:3px}
.dur-badge{position:absolute;right:10px;bottom:10px;padding:3px 9px;border-radius:var(--r-badge);background:rgba(0,0,0,.7);color:#fff;font-size:12px;font-variant-numeric:tabular-nums;font-weight:600}
.replay-body{padding:18px}
.replay-title{font-size:16px;font-weight:600;line-height:1.5}
.replay-date{margin-top:10px;font-size:13px;color:var(--c-muted)}

/* 最新信息 */
.post-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.post-card{grid-column:span 6;display:flex;flex-direction:column;background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t)}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card-hover)}
.post-card:nth-child(1){grid-column:span 6}
.post-card:nth-child(2),.post-card:nth-child(3){grid-column:span 3}
.post-card:nth-child(n+4){grid-column:span 6}
.post-thumb{display:none}
.post-card--lead .post-thumb{display:block;aspect-ratio:16/9;background:#DCE6F8;overflow:hidden}
.post-card--lead .post-thumb img{width:100%;height:100%;object-fit:cover}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1}
.post-tag{align-self:flex-start;padding:3px 11px;border-radius:var(--r-badge);background:var(--c-accent-soft);color:#0C7B80;font-size:12px;font-weight:600;margin-bottom:12px}
.post-title{font-size:17px;font-weight:600;line-height:1.55}
.post-card--lead .post-title{font-size:20px}
.post-title a{transition:color var(--t)}
.post-title a:hover{color:var(--c-primary)}
.post-excerpt{margin-top:10px;font-size:14px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);border-top:1px solid var(--c-divider)}
.empty-state{padding:56px 24px;text-align:center;background:var(--c-card);border:1px dashed var(--c-border);border-radius:var(--r-card)}
.empty-state svg{width:40px;height:40px;margin:0 auto 14px;color:#A9B6CE}
.empty-state p{font-size:14px;color:var(--c-muted);margin-bottom:18px}

/* 时间轴 */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.tl-item{position:relative;padding-top:8px}
.tl-item::after{content:"";position:absolute;top:23px;left:48px;right:-24px;height:1px;background:var(--c-border)}
.tl-item:last-child::after{display:none}
.tl-num{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:#fff;border:1.5px solid var(--c-primary);color:var(--c-primary);font-size:14px;font-weight:700}
.tl-item h3{margin-top:16px;font-size:16px}
.tl-item p{margin-top:6px;font-size:14px;color:var(--c-muted)}

/* FAQ */
.faq{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden}
.faq-item{border-top:1px solid var(--c-divider)}
.faq-item:first-child{border-top:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;cursor:pointer;transition:background var(--t),color var(--t)}
.faq-q:hover{background:rgba(35,64,142,.04);color:var(--c-primary)}
.faq-icon{flex:none;width:22px;height:22px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:400;color:var(--c-primary);transition:transform var(--t),color var(--t)}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--c-muted)}

/* CTA */
.cta-band{position:relative;overflow:hidden;border:1px solid rgba(35,64,142,.18);background:#E9EFFC;border-radius:var(--r-card);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(35,64,142,.14) 1px,transparent 1px);background-size:22px 22px;opacity:.4;pointer-events:none}
.cta-copy{position:relative}
.cta-copy h2{font-size:clamp(20px,2.2vw,26px);color:var(--c-primary-dark)}
.cta-copy p{margin-top:10px;font-size:14px;color:var(--c-muted)}
.cta-band .btn{position:relative;flex:none}

/* 页脚 */
.site-footer{background:var(--c-band);border-top:1px solid var(--c-border);margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding-top:56px;padding-bottom:40px}
.footer-col h3{font-size:15px;font-weight:700;color:var(--c-primary-dark);margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--c-muted);max-width:34em}
.footer-brand .brand{position:static;transform:none;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--c-muted);transition:color var(--t),padding-left var(--t)}
.footer-col ul a:hover{color:var(--c-primary);padding-left:4px}
.contact-list li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--c-muted)}
.contact-list svg{width:16px;height:16px;color:var(--c-accent);flex:none}
.footer-bar{border-top:1px solid var(--c-border);padding:18px 0}
.footer-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-muted)}
.footer-bar-inner a:hover{color:var(--c-primary)}

@media(max-width:1279px){
  .wrap{max-width:960px}
  .hero-grid{gap:40px}
}
@media(max-width:1023px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .mobile-panel{display:block}
  .nav{height:64px}
  .brand{font-size:17px}
  .hero{padding:52px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{order:-1}
  .section{padding:64px 0}
  .sub-grid{grid-template-columns:1fr;gap:24px}
  .replay-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .tl-item:nth-child(2)::after{display:none}
  .post-card:nth-child(1),.post-card:nth-child(n+4){grid-column:span 12}
  .post-card:nth-child(2),.post-card:nth-child(3){grid-column:span 6}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left}
}
@media(max-width:767px){
  .wrap{padding:0 16px}
  body{font-size:15px}
  .hero h1{font-size:clamp(26px,7.4vw,32px)}
  .cd-grid{gap:10px}
  .cd-cell{min-width:56px}
  .cd-sep{display:none}
  .countdown{flex-direction:column;align-items:flex-start;gap:18px}
  .cd-status{align-self:flex-start}
  .replay-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .tl-item::after{display:none}
  .post-card:nth-child(2),.post-card:nth-child(3){grid-column:span 12}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{padding:26px 22px}
  .cta-band .btn{width:100%}
}
@media(max-width:480px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bar-inner{flex-direction:column;align-items:flex-start;gap:8px}
  .section{padding:52px 0}
}

/* roulang page: article */
:root{
  --brand:#23408E;
  --brand-deep:#16295E;
  --brand-hover:#1B3372;
  --accent:#3A6CF4;
  --cyan:#12A8AE;
  --cyan-soft:#E2F5F6;
  --orange:#F08A24;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --band:#EEF3FC;
  --border:#E3E9F5;
  --line:#EDF1F8;
  --text:#26324A;
  --muted:#68758F;
  --white:#FFFFFF;
  --ok:#22A06B;
  --warn:#E0A030;
  --err:#D9534F;
  --r-lg:16px;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --shadow-sm:0 2px 10px rgba(28,48,96,.06);
  --shadow:0 6px 24px rgba(28,48,96,.08);
  --shadow-lg:0 12px 32px rgba(28,48,96,.14);
  --t:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ---------- 顶部提示条 ---------- */
.topbar{background:var(--brand-deep);color:#DCE5F8;height:36px;display:flex;align-items:center;position:relative;z-index:60}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar p{margin:0;font-size:13px;display:flex;align-items:center;gap:8px;line-height:1.2}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--orange);display:inline-block;box-shadow:0 0 0 0 rgba(240,138,36,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(240,138,36,.55)}70%{box-shadow:0 0 0 8px rgba(240,138,36,0)}100%{box-shadow:0 0 0 0 rgba(240,138,36,0)}}
.topbar-close{background:transparent;border:0;color:#B9C6E6;font-size:18px;line-height:1;cursor:pointer;padding:4px 8px;border-radius:6px;transition:background var(--t),color var(--t)}
.topbar-close:hover{background:rgba(255,255,255,.12);color:#fff}
.topbar.is-hidden{display:none}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--border);transition:box-shadow var(--t)}
.site-header.is-stuck{box-shadow:var(--shadow)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:70px}
.nav-side{display:flex;align-items:center;gap:24px;flex:1}
.nav-side--left{justify-content:flex-start}
.nav-side--right{justify-content:flex-end}
.nav-link{position:relative;font-size:15px;color:var(--text);padding:4px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width var(--t)}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link.is-active::after{width:100%}
.nav-link.is-active{color:var(--brand);font-weight:600}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;color:var(--brand)}
.brand:hover{color:var(--brand-hover)}
.brand-mark{width:26px;height:26px;color:var(--brand)}
.brand-text{font-size:20px;font-weight:700;letter-spacing:.5px;color:var(--brand-deep);white-space:nowrap}
.brand-text em{font-style:normal;color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:0 20px;height:44px;border:1px solid transparent;cursor:pointer;transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep)}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:rgba(35,64,142,.08);color:var(--brand)}
.btn-text{height:auto;padding:0;background:none;color:var(--brand);font-weight:600}
.btn-text span{border-bottom:1px solid currentColor;padding-bottom:2px;transition:padding var(--t)}
.btn-text:hover span{padding-right:6px}
.btn-nav{height:40px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);background:#fff;border-radius:10px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-deep);transition:transform var(--t)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{display:none;border-top:1px solid var(--border);background:#fff}
.mobile-panel.is-open{display:block}
.mobile-panel a{display:block;font-size:16px;line-height:52px;padding:0 20px;color:var(--text);border-bottom:1px solid var(--line)}
.mobile-panel a:hover{background:var(--band);color:var(--brand)}
.mobile-panel .panel-cta{margin:16px 20px;color:#fff;background:var(--brand);border-radius:var(--r-btn);text-align:center;line-height:46px;border:0}
.mobile-panel .panel-cta:hover{background:var(--brand-hover);color:#fff}

/* ---------- 文章头部 ---------- */
.article-hero{background-image:linear-gradient(rgba(245,248,253,.92),rgba(245,248,253,.96)),url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;border-bottom:1px solid var(--border);padding:28px 0 40px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B9C4DA}
.breadcrumb .current{color:var(--text);font-weight:600}
.pill{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:var(--cyan-soft);color:#0B7E83;font-size:13px;font-weight:600;margin-bottom:16px}
.article-hero h1{font-size:clamp(28px,4.2vw,44px);line-height:1.32;font-weight:700;letter-spacing:0;color:var(--brand-deep);max-width:900px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:14px;color:var(--muted)}
.meta-row .num{font-variant-numeric:tabular-nums;font-weight:600;color:var(--text)}
.meta-row .divider{width:1px;height:14px;background:var(--border)}

/* ---------- 文章主体 ---------- */
.article-layout{padding:48px 0 0}
.article-body{max-width:840px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:44px 48px;font-size:16px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:26px;line-height:1.45;font-weight:700;margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--brand);color:var(--brand-deep)}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;margin:1.6em 0 .6em;padding-left:12px;border-left:4px solid var(--cyan);color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;list-style:revert}
.article-body li{margin:.45em 0}
.article-body blockquote{margin:1.6em 0;padding:16px 22px;background:var(--band);border-left:4px solid var(--accent);border-radius:0 12px 12px 0;color:var(--muted);font-size:15px}
.article-body img{border-radius:14px;margin:1.6em auto}
.article-body table{border-collapse:collapse;min-width:520px;font-size:14px}
.article-body th{background:var(--band);font-weight:600;text-align:left}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px}
.article-body tbody tr:nth-child(even){background:#FAFCFF}
.article-body .table-scroll{overflow-x:auto;margin:1.6em 0;border-radius:12px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.empty-state{text-align:center;padding:40px 20px}
.empty-state svg{width:56px;height:56px;color:#B9C6E6;margin:0 auto 16px}
.empty-state p{font-size:16px;color:var(--muted);margin-bottom:20px}

/* ---------- 标签与分享 ---------- */
.article-foot{max-width:840px;margin:28px auto 0}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--muted);margin-right:4px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:var(--band);color:var(--brand);font-size:13px;transition:background var(--t),color var(--t)}
.tag:hover{background:var(--brand);color:#fff}
.share-row{display:flex;align-items:center;gap:12px;padding:16px 0;font-size:14px;color:var(--muted)}
.share-btn{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--text);font-size:13px;cursor:pointer;transition:border-color var(--t),color var(--t),box-shadow var(--t)}
.share-btn:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--shadow-sm)}

/* ---------- 上一篇 / 下一篇 ---------- */
.prevnext{max-width:840px;margin:26px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.prevnext a{display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);padding:18px 20px;transition:box-shadow var(--t),transform var(--t),border-color var(--t)}
.prevnext a:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#CFDCF5}
.prevnext .dir{font-size:12px;color:var(--muted);letter-spacing:1px}
.prevnext .ttl{display:block;margin-top:6px;font-size:15px;font-weight:600;color:var(--text);line-height:1.6}
.prevnext a:hover .ttl{color:var(--brand)}
.prevnext .next{text-align:right}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-head h2{font-size:24px;font-weight:700;color:var(--brand-deep)}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow var(--t),transform var(--t);display:flex;flex-direction:column}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.card-thumb{position:relative;aspect-ratio:16/9;background:var(--band);overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.card:hover .card-thumb img{transform:scale(1.04)}
.badge{position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--cyan-soft);color:#0B7E83;font-size:12px;font-weight:600}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:16px;font-weight:600;line-height:1.6;color:var(--text)}
.card-body h3 a{color:inherit;display:block}
.card:hover .card-body h3{color:var(--brand)}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.card-foot .more{color:var(--brand);font-weight:600}

/* ---------- 返回入口 ---------- */
.back-links{padding:48px 0 0}
.back-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;background:var(--band);border:1px solid var(--border);border-radius:var(--r-lg);padding:26px 30px}
.back-inner h2{font-size:20px;font-weight:700;color:var(--brand-deep)}
.back-inner p{font-size:14px;color:var(--muted);margin-top:6px}
.back-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- CTA 横幅 ---------- */
.cta-band{padding:56px 0 0}
.cta-inner{background-image:linear-gradient(rgba(238,243,252,.95),rgba(238,243,252,.95)),url("/assets/images/backpic/back-3.webp");background-size:cover;border:1px solid #D3E0F7;border-radius:var(--r-lg);padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.cta-inner h2{font-size:22px;font-weight:700;color:var(--brand-deep)}
.cta-inner p{font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:76px;background:#EDF2FB;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding:56px 20px 40px}
.footer-col h3{font-size:15px;font-weight:700;color:var(--brand-deep);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand)}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:320px}
.contact-list li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.contact-list svg{width:16px;height:16px;flex:0 0 auto;color:var(--cyan)}
.footer-bar{border-top:1px solid var(--border);background:#E6EDFA}
.footer-bar-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:18px 20px;font-size:13px;color:var(--muted)}
.footer-bar-inner a{color:var(--muted)}
.footer-bar-inner a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .nav-wrap{justify-content:space-between}
  .btn-nav{display:none}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .article-hero{padding:20px 0 30px}
  .article-layout{padding:32px 0 0}
  .article-body{padding:26px 20px;font-size:15px;border-radius:12px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:17px}
  .prevnext{grid-template-columns:1fr}
  .prevnext .next{text-align:left}
  .related{padding:42px 0 0}
  .related-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;text-align:center;padding:28px 22px}
  .back-inner{flex-direction:column;text-align:center;padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;padding:40px 16px 28px}
  .footer-brand p{max-width:none}
}
@media (max-width:480px){
  body{font-size:15px}
  .brand-text{font-size:18px}
  .article-hero h1{font-size:26px}
  .section-head{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .back-actions{width:100%}
  .back-actions .btn{width:100%}
  .cta-inner .btn{width:100%}
  .share-row{flex-wrap:wrap}
}

/* roulang page: category1 */
:root{
  --brand:#23408E;
  --brand-dark:#16295E;
  --brand-hover:#1B3372;
  --accent:#3A6CF4;
  --cyan:#12A8AE;
  --cyan-soft:#E4F5F6;
  --cyan-deep:#0C7478;
  --orange:#F08A24;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --band:#EEF3FC;
  --border:#E3E9F5;
  --line:#EDF1F8;
  --text:#26324A;
  --muted:#68758F;
  --white:#FFFFFF;
  --success:#22A06B;
  --warn:#E0A030;
  --error:#D9534F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --radius-pill:999px;
  --shadow:0 6px 24px rgba(28,48,96,.08);
  --shadow-hover:0 12px 32px rgba(28,48,96,.14);
  --dur:220ms;
  --sec-y:88px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--dur) ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,button{font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;
  padding:10px 16px;border-radius:0 0 var(--radius-btn) 0;z-index:200;
}
.skip-link:focus{left:0;color:#fff;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--dur) ease,background var(--dur) ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(28,48,96,.08);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:72px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side--left{justify-content:flex-start;}
.nav-side--right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:100%;height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--brand);font-weight:700;
  font-size:19px;letter-spacing:.3px;
  white-space:nowrap;
}
.brand:hover{color:var(--brand-dark);}
.brand-mark{width:26px;height:26px;color:var(--cyan);flex:0 0 auto;}
.brand-text em{font-style:normal;color:var(--brand-dark);}
.brand-text{color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  padding:13px 22px;
  font-size:15px;font-weight:600;
  line-height:1;
  transition:background var(--dur) ease,color var(--dur) ease,
             border-color var(--dur) ease,transform var(--dur) ease,
             box-shadow var(--dur) ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--brand-dark);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(35,64,142,.08);color:var(--brand-dark);}
.btn-ghost:active{background:rgba(35,64,142,.14);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-link{
  background:none;border:0;padding:0;
  color:var(--brand);font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.btn-link::after{
  content:"";position:absolute;
}
.btn-link span{position:relative;}
.btn-link span::after{
  content:"";position:absolute;left:0;bottom:-3px;
  width:100%;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) ease;
}
.btn-link:hover span::after{transform:scaleX(1);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-btn);
  color:var(--brand);
}
.nav-toggle:hover{background:var(--band);}
.nav-toggle svg{width:20px;height:20px;}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 0 18px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel .wrap{display:flex;flex-direction:column;}
.mobile-panel a{
  display:flex;align-items:center;
  height:52px;font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-of-type{border-bottom:0;}
.mobile-panel a.is-active{color:var(--brand);font-weight:600;}
.mobile-panel .btn{margin-top:14px;width:100%;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  padding:26px 0 0;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:#B7C1D6;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:34px 0 72px;
  background:
    radial-gradient(circle at 88% 12%, rgba(18,168,174,.10), transparent 46%),
    linear-gradient(180deg,#F7FAFF 0%,var(--bg) 100%);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(35,64,142,.5) 1px, transparent 1px);
  background-size:26px 26px;
  opacity:.05;
  pointer-events:none;
}
.page-hero .wrap{position:relative;}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  margin-top:26px;
}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--cyan-soft);color:var(--cyan-deep);
  border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;
  padding:6px 14px;
  letter-spacing:.2px;
}
h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:0;
  margin:18px 0 0;
  color:var(--brand-dark);
}
.lead{
  font-size:17px;
  color:var(--muted);
  margin-top:16px;
  max-width:34em;
}
.hero-actions{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-top:28px;
}
.hero-note{
  font-size:13px;
  color:var(--muted);
  margin-top:16px;
}
.hero-media{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow);
  background:var(--band);
  aspect-ratio:16/9;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media .media-badge{
  position:absolute;right:16px;bottom:16px;
  background:rgba(35,64,142,.92);
  color:#fff;font-size:13px;font-weight:600;
  border-radius:var(--radius-pill);
  padding:8px 15px;
  font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;gap:7px;
}
.live-dot{
  width:7px;height:7px;border-radius:50%;background:var(--orange);
  display:inline-block;
  animation:breathe 1.6s ease-in-out infinite;
}
@keyframes breathe{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.35;transform:scale(.8);}
}

/* ---------- anchor pills ---------- */
.anchor-bar{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  position:sticky;top:72px;z-index:60;
}
.anchor-nav{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px 0;
}
.pill{
  display:inline-flex;align-items:center;
  border:1px solid var(--border);
  background:#fff;
  color:var(--muted);
  font-size:14px;
  border-radius:var(--radius-pill);
  padding:8px 16px;
  transition:all var(--dur) ease;
}
.pill:hover{
  border-color:var(--brand);
  color:var(--brand);
  background:rgba(35,64,142,.06);
}
.pill.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ---------- sections ---------- */
.section{padding:var(--sec-y) 0;}
.section--band{background:var(--band);}
.section-head{max-width:720px;margin-bottom:34px;}
.section-head h2{
  font-size:clamp(24px,3vw,30px);
  line-height:1.35;
  font-weight:700;
  color:var(--brand-dark);
}
.section-head p{color:var(--muted);margin-top:12px;font-size:15px;}

/* ---------- feature rows ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:36px 0;
  border-bottom:1px solid var(--line);
}
.feature-row:last-of-type{border-bottom:0;}
.feature-row:nth-child(even) .feature-media{order:2;}
.feature-row:nth-child(even) .feature-copy{order:1;}
.feature-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow);
  background:var(--band);
  aspect-ratio:4/3;
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease;}
.feature-media:hover img{transform:scale(1.03);}
.feature-copy h3{
  font-size:20px;
  font-weight:700;
  color:var(--brand-dark);
  margin-bottom:14px;
}
.feature-copy p{color:var(--muted);margin-bottom:12px;font-size:15.5px;}
.feature-copy p:last-child{margin-bottom:0;}
.micro-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.micro-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text);
}
.micro-list svg{
  width:18px;height:18px;flex:0 0 auto;margin-top:4px;color:var(--cyan);
}

/* ---------- steps ---------- */
.step-list{display:flex;flex-direction:column;}
.step-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) ease;
}
.step-item:last-child{border-bottom:0;}
.step-item:hover{background:rgba(35,64,142,.03);}
.step-no{
  width:52px;height:52px;border-radius:50%;
  border:2px solid var(--brand);
  color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;
  font-variant-numeric:tabular-nums;
  background:#fff;
  transition:all var(--dur) ease;
}
.step-item:hover .step-no{background:var(--brand);color:#fff;}
.step-body h4{font-size:17px;font-weight:600;color:var(--brand-dark);}
.step-body p{font-size:14.5px;color:var(--muted);margin-top:6px;}
.step-body .step-meta{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:10px;font-size:13px;color:var(--cyan-deep);
  background:var(--cyan-soft);
  border-radius:var(--radius-pill);
  padding:4px 12px;
}

/* ---------- checklist ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.check-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease;
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.check-card .icon{
  width:42px;height:42px;border-radius:12px;
  background:var(--cyan-soft);color:var(--cyan-deep);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.check-card .icon svg{width:22px;height:22px;}
.check-card h3{font-size:17px;font-weight:600;color:var(--brand-dark);}
.check-card p{font-size:14.5px;color:var(--muted);margin-top:8px;}

/* ---------- related ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.related-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.related-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(58,108,244,.35);
}
.related-card h3{
  font-size:16px;font-weight:600;color:var(--brand-dark);
  margin-bottom:10px;
}
.related-card p{font-size:14px;color:var(--muted);flex:1;}
.related-card .more{
  margin-top:18px;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.related-card .more svg{width:15px;height:15px;transition:transform var(--dur) ease;}
.related-card:hover .more svg{transform:translateX(3px);}

/* ---------- cta ---------- */
.cta-band{
  background:
    radial-gradient(circle at 12% 20%, rgba(18,168,174,.12), transparent 42%),
    var(--band);
  border:1px solid var(--border);
  border-radius:18px;
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);color:var(--brand-dark);font-weight:700;}
.cta-band p{color:var(--muted);font-size:15px;margin-top:10px;max-width:46em;}

/* ---------- footer ---------- */
.site-footer{
  background:#F2F5FB;
  border-top:1px solid var(--border);
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
  padding:64px 20px 48px;
}
.footer-col h3{
  font-size:15px;font-weight:600;color:var(--brand-dark);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:16px;max-width:30em;}
.contact-list li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--muted);
}
.contact-list svg{width:17px;height:17px;color:var(--brand);flex:0 0 auto;}
.footer-bar{border-top:1px solid var(--border);background:#EDF1F8;}
.footer-bar-inner{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px;
  font-size:13px;color:var(--muted);
}
.footer-bar-inner a{color:var(--muted);}
.footer-bar-inner a:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .wrap{max-width:960px;}
  .feature-row{gap:40px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  :root{--sec-y:64px;}
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{grid-template-columns:auto 1fr auto;min-height:64px;}
  .brand{justify-self:center;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:-1;}
  .anchor-bar{top:64px;}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:52px 20px 40px;}
  .feature-row{grid-template-columns:1fr;gap:26px;}
  .feature-row:nth-child(even) .feature-media{order:0;}
  .feature-row:nth-child(even) .feature-copy{order:0;}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;}
}
@media (max-width:767px){
  :root{--sec-y:48px;}
  body{font-size:15px;}
  .wrap{padding:0 16px;}
  .page-hero{padding:24px 0 52px;}
  .breadcrumb{padding-top:18px;}
  .anchor-nav{flex-wrap:nowrap;overflow-x:auto;padding:12px 0;-webkit-overflow-scrolling:touch;}
  .anchor-nav::-webkit-scrollbar{display:none;}
  .pill{flex:0 0 auto;}
  .check-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .step-item{grid-template-columns:52px 1fr;gap:16px;}
  .step-no{width:44px;height:44px;font-size:16px;}
  .cta-band{padding:30px 24px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;padding:44px 16px 32px;}
  .footer-bar-inner{flex-direction:column;padding:18px 16px;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:480px){
  h1{font-size:26px;}
  .section-head h2{font-size:22px;}
  .feature-copy h3{font-size:18px;}
  .btn{padding:12px 18px;font-size:14px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#23408E;
  --c-primary-dark:#16295E;
  --c-primary-hover:#1B3372;
  --c-accent:#3A6CF4;
  --c-cyan:#12A8AE;
  --c-orange:#F08A24;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --band:#EEF3FC;
  --border:#E3E9F5;
  --divider:#EDF1F8;
  --text:#26324A;
  --muted:#68758F;
  --white:#FFFFFF;
  --ok:#22A06B;
  --warn:#E0A030;
  --err:#D9534F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --r-badge:999px;
  --sh-card:0 6px 24px rgba(28,48,96,.08);
  --sh-card-hover:0 12px 32px rgba(28,48,96,.14);
  --sh-header:0 8px 24px rgba(28,48,96,.08);
  --w-container:1200px;
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px; --sp-7:96px;
  --t:220ms ease;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-accent)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
p{color:var(--text)}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--w-container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums;font-weight:600}
/* ---------- 顶部公告条 ---------- */
.topbar{background:var(--c-primary-dark);color:#E8EDFA;font-size:13px;position:relative;z-index:60}
.topbar-inner{display:flex;align-items:center;justify-content:center;gap:12px;min-height:34px;padding:4px 46px 4px 20px;text-align:center;line-height:1.5}
.topbar-inner b{color:#fff;font-weight:600}
.topbar-close{position:absolute;right:14px;top:50%;transform:translateY(-50%);width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:#C7D3EE;transition:background var(--t),color var(--t)}
.topbar-close:hover{background:rgba(255,255,255,.12);color:#fff}
.topbar.is-hidden{display:none}
.topbar svg{width:16px;height:16px}
/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--border);transition:box-shadow var(--t)}
.site-header.is-stuck{box-shadow:var(--sh-header)}
.nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:var(--sp-3);min-height:74px}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-side--right{justify-content:flex-end;gap:20px}
.nav-link{position:relative;font-size:15px;color:var(--text);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--c-accent);border-radius:2px;transition:width var(--t)}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--c-primary-dark);letter-spacing:0}
.brand:hover{color:var(--c-primary-dark)}
.brand-mark{width:26px;height:26px;color:var(--c-primary);flex:none}
.brand-text em{font-style:normal;color:var(--c-accent);margin-left:2px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);align-items:center;justify-content:center;position:relative;border:1px solid var(--border)}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:13px}
.nav-toggle span::before{top:16px}
.nav-toggle span::after{top:26px}
.nav-toggle[aria-expanded="true"] span{transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::before{top:21px;transform:rotate(-90deg)}
.nav-toggle[aria-expanded="true"] span::after{opacity:0}
.mobile-panel{display:none;border-top:1px solid var(--divider);background:#fff;padding:8px 20px 20px}
.mobile-panel.is-open{display:block}
.m-link{display:block;font-size:16px;line-height:52px;color:var(--text);border-bottom:1px solid var(--divider);padding:0 2px}
.m-link.is-active{color:var(--c-primary);font-weight:600}
.mobile-panel .btn{margin-top:16px}
/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t)}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0);background:var(--c-primary-dark)}
.btn--ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn--ghost:hover{background:rgba(35,64,142,.08);color:var(--c-primary)}
.btn--ghost:active{background:rgba(35,64,142,.14)}
.btn--sm{padding:9px 18px;font-size:14px}
.btn--block{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none}
/* ---------- 通用：面包屑 / 标签 / 徽章 ---------- */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--muted)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:#B7C2D8}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs li[aria-current]{font-weight:700;color:var(--text)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-badge);font-size:12.5px;font-weight:600;background:rgba(18,168,174,.12);color:#0B7C81}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-badge);font-size:12.5px;font-weight:600;background:var(--band);color:var(--c-primary)}
.badge--live{background:var(--c-orange);color:#fff}
.badge--live .dot{width:7px;height:7px;border-radius:50%;background:#fff;animation:pulse 1.4s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
/* ---------- 页面头部 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--band);border-bottom:1px solid var(--border)}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.10}
.page-hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(35,64,142,.14) 1px,transparent 1px);background-size:24px 24px;opacity:.35}
.page-hero-inner{position:relative;z-index:1;padding:44px 0 52px;max-width:860px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-cyan);margin-bottom:14px}
.hero-kicker svg{width:16px;height:16px}
.page-title{font-size:clamp(28px,4.2vw,42px);font-weight:700;line-height:1.28;letter-spacing:0;color:var(--c-primary-dark)}
.page-lead{margin-top:16px;font-size:16.5px;color:var(--muted);max-width:720px}
.hero-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-meta span{font-size:13.5px;color:var(--muted);display:inline-flex;align-items:center;gap:6px}
.hero-meta svg{width:15px;height:15px;color:var(--c-cyan)}
/* ---------- 锚点胶囊 ---------- */
.anchor-bar{background:#fff;border-bottom:1px solid var(--border)}
.anchor-nav{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:thin}
.anchor-nav a{flex:none;padding:8px 16px;border-radius:var(--r-badge);font-size:14px;color:var(--muted);background:var(--band);transition:background var(--t),color var(--t),box-shadow var(--t)}
.anchor-nav a:hover{background:rgba(35,64,142,.12);color:var(--c-primary)}
.anchor-nav a.is-current{background:var(--c-primary);color:#fff;box-shadow:0 4px 12px rgba(35,64,142,.24)}
/* ---------- 板块 ---------- */
.section{padding:var(--sp-6) 0}
.section--tight{padding:var(--sp-5) 0 var(--sp-6)}
.section--band{background:var(--band)}
.section--white{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:var(--sp-4)}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--c-primary-dark);line-height:1.35}
.sec-head p{margin-top:8px;font-size:15px;color:var(--muted);max-width:660px}
.sec-head .sec-more{font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:border-color var(--t),color var(--t)}
.sec-head .sec-more:hover{border-color:var(--c-accent)}
.sec-body{max-width:820px}
.sec-body p{font-size:16px;color:var(--text);margin-bottom:1.1em}
.sec-body p:last-child{margin-bottom:0}
.figure{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-card);background:#DCE6F7}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{font-size:13px;color:var(--muted);padding:12px 4px 0}
/* 图文两栏 */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:var(--sp-5);align-items:center}
/* 勾选列表 */
.check-list{margin-top:18px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;font-size:15.5px;color:var(--text);padding:12px 16px;background:#fff;border:1px solid var(--border);border-radius:12px;transition:box-shadow var(--t),transform var(--t),border-color var(--t)}
.check-list li:hover{box-shadow:var(--sh-card);transform:translateY(-2px);border-color:#D2DDF2}
.check-list svg{width:18px;height:18px;flex:none;margin-top:4px;color:var(--c-cyan)}
/* 三卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-card);transition:box-shadow var(--t),transform var(--t)}
.card:hover{box-shadow:var(--sh-card-hover);transform:translateY(-3px)}
.card-icon{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:rgba(35,64,142,.09);color:var(--c-primary);margin-bottom:16px}
.card-icon svg{width:22px;height:22px}
.card h3{font-size:18px;font-weight:700;color:var(--c-primary-dark);margin-bottom:10px}
.card p{font-size:14.5px;color:var(--muted)}
.card .meta-line{margin-top:14px;font-size:13px;color:var(--c-cyan);font-weight:600}
/* ---------- 流程 + 倒计时 ---------- */
.flow-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:var(--sp-5);align-items:start}
.timeline{position:relative;padding-left:38px}
.timeline::before{content:"";position:absolute;left:13px;top:14px;bottom:18px;width:2px;background:linear-gradient(var(--c-primary),var(--divider))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-38px;top:2px;width:28px;height:28px;border-radius:50%;background:#fff;border:2px solid var(--c-primary);color:var(--c-primary);font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;transition:background var(--t),color var(--t)}
.tl-item:hover .tl-dot{background:var(--c-primary);color:#fff}
.tl-time{font-size:13px;font-weight:700;color:var(--c-cyan);letter-spacing:.02em}
.tl-title{font-size:16.5px;font-weight:600;color:var(--c-primary-dark);margin-top:4px}
.tl-desc{font-size:14.5px;color:var(--muted);margin-top:6px}
/* 倒计时卡 */
.cd-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-card);padding:24px 22px;position:sticky;top:96px}
.cd-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.cd-head h3{font-size:16px;font-weight:700;color:var(--c-primary-dark)}
.cd-status{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.cd-status.is-live{color:var(--c-orange);font-weight:600}
.cd-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.cd-block{background:var(--band);border-radius:12px;padding:14px 4px 10px;text-align:center}
.cd-num{font-size:30px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--c-primary);line-height:1.1}
.cd-label{font-size:12px;color:var(--muted);margin-top:8px}
.cd-meta{margin-top:18px;padding-top:16px;border-top:1px solid var(--divider);display:grid;gap:8px}
.cd-meta p{font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:8px}
.cd-meta svg{width:15px;height:15px;color:var(--c-cyan);flex:none}
.cd-card .btn{margin-top:18px}
.live-badge{display:none;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-badge);background:var(--c-orange);color:#fff;font-size:11.5px;font-weight:700;letter-spacing:.04em}
.live-badge.is-on{display:inline-flex}
/* ---------- 订阅步骤 ---------- */
.steps{display:grid;gap:var(--sp-2);counter-reset:step}
.step{display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t)}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-card-hover)}
.step-no{width:56px;height:56px;border-radius:50%;border:1.5px solid var(--c-primary);color:var(--c-primary);font-size:19px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.step h3{font-size:17px;font-weight:700;color:var(--c-primary-dark);margin-bottom:6px}
.step p{font-size:14.5px;color:var(--muted)}
.note{margin-top:18px;font-size:13px;color:var(--muted);display:flex;align-items:flex-start;gap:8px}
.note svg{width:15px;height:15px;color:var(--c-cyan);flex:none;margin-top:4px}
/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3)}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t),border-color var(--t);height:100%}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card-hover);border-color:#D6E0F3}
.rel-card .thumb{aspect-ratio:16/9;background:#DCE6F7;overflow:hidden}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover}
.rel-card .rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-card h3{font-size:16.5px;font-weight:700;color:var(--c-primary-dark)}
.rel-card p{font-size:14px;color:var(--muted);flex:1}
.rel-card .rel-link{font-size:13.5px;font-weight:600;color:var(--c-accent)}
.rel-card.is-current{border-color:var(--c-primary)}
.rel-card.is-current h3{color:var(--c-primary)}
/* ---------- CTA ---------- */
.cta-band{background:var(--band);border:1px solid var(--border);border-radius:var(--r-img);padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(35,64,142,.14) 1px,transparent 1px);background-size:22px 22px;opacity:.3;pointer-events:none}
.cta-band-inner{position:relative;z-index:1}
.cta-band h2{font-size:clamp(20px,2.3vw,26px);font-weight:700;color:var(--c-primary-dark)}
.cta-band p{margin-top:8px;font-size:15px;color:var(--muted)}
.cta-band .btn{position:relative;z-index:1;flex:none}
/* ---------- 页脚 ---------- */
.site-footer{background:#F0F4FB;border-top:1px solid var(--border);margin-top:var(--sp-6)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:var(--sp-4);padding:56px 20px 40px}
.footer-col h3{font-size:15px;font-weight:700;color:var(--c-primary-dark);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--c-primary)}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:330px}
.contact-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted)}
.contact-list svg{width:17px;height:17px;flex:none;margin-top:3px;color:var(--c-primary)}
.footer-bar{border-top:1px solid var(--border);background:#E9EFF9}
.footer-bar-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;font-size:13px;color:var(--muted)}
.footer-bar-inner a{color:var(--muted)}
.footer-bar-inner a:hover{color:var(--c-primary)}
/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .wrap{max-width:960px}
}
@media (max-width:1023px){
  .nav-grid{display:flex;justify-content:space-between;min-height:66px;gap:12px}
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .brand{font-size:18px}
  .section{padding:56px 0}
  .section--tight{padding:40px 0 56px}
  .page-hero-inner{padding:36px 0 44px}
  .split{grid-template-columns:1fr;gap:var(--sp-4)}
  .flow-layout{grid-template-columns:1fr;gap:var(--sp-4)}
  .cd-card{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-4);padding:44px 20px 32px}
}
@media (max-width:767px){
  body{font-size:15px}
  .wrap{padding:0 16px}
  .topbar-inner{font-size:12.5px}
  .section{padding:44px 0}
  .page-title{font-size:clamp(24px,7vw,32px)}
  .page-lead{font-size:15px}
  .sec-head{margin-bottom:24px}
  .grid-3{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .cd-grid{grid-template-columns:repeat(2,1fr)}
  .cd-num{font-size:26px}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;padding:26px 22px}
  .cta-band .btn{width:100%}
  .step{grid-template-columns:44px 1fr;gap:16px;padding:18px}
  .step-no{width:44px;height:44px;font-size:17px}
  .footer-grid{grid-template-columns:1fr;padding:36px 16px 28px}
  .footer-bar-inner{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:479px){
  .page-title{font-size:24px}
  .sec-head h2{font-size:21px}
  .cd-num{font-size:23px}
  .btn{padding:12px 18px;font-size:14.5px}
  .btn--sm{padding:9px 14px;font-size:13.5px}
  .hero-meta{gap:8px}
}

/* roulang page: category3 */
:root{
  --c-primary:#23408E;
  --c-primary-dark:#16295E;
  --c-primary-hover:#1B3372;
  --c-accent:#3A6CF4;
  --c-teal:#12A8AE;
  --c-teal-dark:#0C7E83;
  --c-teal-soft:#E6F6F7;
  --c-orange:#F08A24;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-band:#EEF3FC;
  --c-border:#E3E9F5;
  --c-divider:#EDF1F8;
  --c-text:#26324A;
  --c-text-2:#68758F;
  --c-success:#22A06B;
  --c-warn:#E0A030;
  --c-error:#D9534F;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --r-img:16px;
  --sh-card:0 6px 24px rgba(28,48,96,.08);
  --sh-hover:0 12px 32px rgba(28,48,96,.14);
  --container:1200px;
  --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35}
p{margin:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(28,48,96,.08)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:20px;
  min-height:72px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-side--right{justify-content:flex-end;gap:22px}
.nav-link{
  position:relative;
  font-size:15px;
  line-height:1.2;
  color:var(--c-text);
  padding:8px 0;
  transition:color var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after,
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--c-primary);
  white-space:nowrap;
}
.brand-mark{width:22px;height:22px;color:var(--c-teal);flex:none}
.brand-text em{font-style:normal;color:var(--c-accent)}
.header-cta{white-space:nowrap}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-border);background:#fff;border-radius:var(--r-btn);
  cursor:pointer;color:var(--c-primary);
  place-items:center;
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:var(--c-band);border-color:#cfdcf2}
.mobile-panel{display:none;border-top:1px solid var(--c-border);background:#fff}
.mobile-panel a{
  display:block;padding:0 20px;height:52px;line-height:52px;
  font-size:16px;color:var(--c-text);border-bottom:1px solid var(--c-divider);
}
.mobile-panel a.is-active{color:var(--c-primary);font-weight:600}
.mobile-panel a.mobile-cta{
  margin:14px 20px 20px;height:46px;line-height:46px;text-align:center;
  background:var(--c-primary);color:#fff;border-radius:var(--r-btn);
  border-bottom:none;font-weight:600;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(35,64,142,.22)}
.btn--primary:hover{background:var(--c-primary-hover);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(35,64,142,.2)}
.btn--ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn--ghost:hover{background:rgba(35,64,142,.08);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(0)}
.btn--sm{height:40px;padding:0 16px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}
.link-more{
  position:relative;display:inline-block;
  font-size:13px;font-weight:600;color:var(--c-accent);
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.link-more:hover::after{transform:scaleX(1)}

/* ---------- tags & badges ---------- */
.tag{
  display:inline-block;
  background:var(--c-teal-soft);color:var(--c-teal-dark);
  font-size:12px;font-weight:600;line-height:1;
  padding:5px 11px;border-radius:var(--r-badge);
  white-space:nowrap;
}
.tag--primary{background:#E7EEFB;color:var(--c-primary)}
.tag--warn{background:#FDF1E2;color:#B96A12}

/* ---------- breadcrumb & hero ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-2);margin-bottom:20px;
}
.crumb a:hover{color:var(--c-primary)}
.crumb-sep{color:#B7C2D8}
.crumb strong{color:var(--c-text);font-weight:600}
.hero{position:relative;padding:56px 0 72px;background:#fff;overflow:hidden}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(35,64,142,.06) 1px,transparent 1px);
  background-size:20px 20px;opacity:.9;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-teal-soft);color:var(--c-teal-dark);
  font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:var(--r-badge);
  margin-bottom:18px;
}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.25;color:var(--c-primary-dark);
  letter-spacing:0;margin-bottom:18px;
}
.hero-sub{
  font-size:17px;color:var(--c-text-2);
  max-width:34em;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-note{margin-top:16px;font-size:13px;color:var(--c-text-2)}
.hero-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh-card);background:#E7EEFB;
}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.media-badge{
  position:absolute;right:14px;bottom:14px;
  background:rgba(22,41,94,.84);color:#fff;
  font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:var(--r-badge);
  font-variant-numeric:tabular-nums;
}

/* ---------- sections ---------- */
.section{padding:80px 0}
.section--band{background:var(--c-band)}
.section--tight{padding-top:0}
.section-head{max-width:780px;margin-bottom:32px}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  color:var(--c-primary-dark);margin-bottom:12px;
}
.section-head p{color:var(--c-text-2);font-size:15.5px}
.section-more{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap}

.anchor-nav{
  display:flex;flex-wrap:wrap;gap:10px;
  padding-top:4px;margin-top:-24px;margin-bottom:0;
}
.anchor-pill{
  display:inline-block;
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-badge);
  padding:8px 16px;font-size:14px;color:var(--c-text-2);
  transition:color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.anchor-pill:hover{color:var(--c-primary);border-color:#C6D4EE;box-shadow:0 4px 14px rgba(28,48,96,.08)}

/* ---------- grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

/* ---------- type cards ---------- */
.type-card{
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:28px 26px;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease);
}
.type-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.type-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--c-teal-soft);color:var(--c-teal-dark);
  display:grid;place-items:center;margin-bottom:18px;
}
.type-icon svg{width:22px;height:22px}
.type-card h3{font-size:18px;margin-bottom:10px;color:var(--c-primary-dark)}
.type-card p{font-size:14.5px;color:var(--c-text-2);margin-bottom:14px}
.type-card .type-meta{
  font-size:13px;color:var(--c-text-2);
  display:flex;align-items:center;gap:8px;
  padding-top:14px;border-top:1px solid var(--c-divider);
}

/* ---------- replay cards ---------- */
.replay-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.replay-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease);
}
.replay-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.replay-thumb{position:relative;background:#E7EEFB}
.replay-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.play-btn{
  position:absolute;inset:0;margin:auto;
  width:52px;height:52px;border-radius:50%;
  background:rgba(255,255,255,.88);color:var(--c-primary);
  display:grid;place-items:center;
  transition:transform var(--ease),background var(--ease);
}
.play-btn svg{width:20px;height:20px}
.replay-card:hover .play-btn{transform:scale(1.08);background:#fff}
.duration{
  position:absolute;right:10px;bottom:10px;
  background:rgba(16,25,48,.72);color:#fff;
  font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--r-badge);
  font-variant-numeric:tabular-nums;
}
.replay-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.replay-body h3{
  font-size:17px;line-height:1.5;color:var(--c-text);
  margin-bottom:10px;
  transition:color var(--ease);
}
.replay-card:hover .replay-body h3{color:var(--c-primary)}
.replay-body p{font-size:14px;color:var(--c-text-2);margin-bottom:16px}
.replay-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-2);
}

/* ---------- table ---------- */
.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
}
table{width:100%;min-width:760px;border-collapse:collapse}
thead th{
  background:var(--c-band);color:var(--c-primary-dark);
  font-size:14px;font-weight:600;text-align:left;
  padding:15px 18px;white-space:nowrap;
}
tbody td{
  padding:15px 18px;font-size:14.5px;color:var(--c-text);
  border-top:1px solid var(--c-divider);white-space:nowrap;
}
tbody tr:nth-child(even){background:#F8FAFF}
tbody tr:hover{background:var(--c-band)}
tbody td:first-child{font-weight:600;color:var(--c-primary-dark)}
.table-note{margin-top:16px;font-size:13px;color:var(--c-text-2)}

/* ---------- steps ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps::before{
  content:"";position:absolute;left:22px;right:22px;top:22px;height:1px;
  background:var(--c-border);
}
.step{position:relative;z-index:1}
.step-num{
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--c-border);
  color:var(--c-primary);font-weight:600;
  display:grid;place-items:center;
  font-variant-numeric:tabular-nums;
  box-shadow:0 4px 14px rgba(28,48,96,.08);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.step:hover .step-num{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.step h3{font-size:17px;margin:18px 0 8px;color:var(--c-primary-dark)}
.step p{font-size:14px;color:var(--c-text-2)}

/* ---------- related categories ---------- */
.cat-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#CFDCF3}
.cat-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#E7EEFB}
.cat-card-body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1}
.cat-card h3{font-size:16px;margin-bottom:8px;color:var(--c-primary-dark)}
.cat-card p{font-size:13.5px;color:var(--c-text-2);margin-bottom:14px}
.cat-card .link-more{margin-top:auto}
.cat-card.is-current{border-color:var(--c-accent);box-shadow:0 12px 32px rgba(58,108,244,.16)}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 88px}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-band);
  border:1px solid #D9E3F7;
  border-radius:18px;
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(35,64,142,.06) 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:24px;color:var(--c-primary-dark);margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--c-text-2)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-band);border-top:1px solid var(--c-border);color:var(--c-text)}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;padding:56px 0 40px;
}
.footer-col h3{font-size:15px;color:var(--c-primary-dark);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--c-text-2);transition:color var(--ease)}
.footer-col ul li a:hover{color:var(--c-primary)}
.footer-brand p{font-size:14px;color:var(--c-text-2);margin-top:14px;max-width:34em}
.contact-list li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--c-text-2);margin-bottom:12px;
}
.contact-list svg{width:18px;height:18px;color:var(--c-teal);flex:none}
.footer-bar{border-top:1px solid var(--c-border);padding:18px 0}
.footer-bar-inner{
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-text-2);
}
.footer-bar a:hover{color:var(--c-primary)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .wrap{max-width:960px}
}
@media (max-width:1023px){
  .nav-toggle{display:grid}
  .header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:12px}
  .nav-side--left,.nav-side--right,.header-cta{display:none}
  .mobile-panel.is-open{display:block}
  .section{padding:64px 0}
  .hero{padding:40px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:-1}
  .grid-3,.replay-grid,.grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .steps::before{display:none}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px;padding:48px 0 32px}
  .cta-section{padding-bottom:64px}
  .cta-band{padding:32px 30px}
}
@media (max-width:767px){
  .grid-3,.replay-grid,.grid-4,.steps{grid-template-columns:1fr}
  .section{padding:52px 0}
  .hero h1{font-size:clamp(26px,6vw,32px)}
  .hero-sub{font-size:16px}
  .section-head{margin-bottom:26px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-band .btn{width:100%}
  .footer-bar-inner{justify-content:flex-start}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  body{font-size:15px}
  .hero{padding:32px 0 44px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .type-card{padding:22px 20px}
  .section{padding:46px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band h2{font-size:20px}
}

/* roulang page: category4 */
:root{
  --brand:#23408E;
  --brand-deep:#16295E;
  --brand-ink:#1B3372;
  --accent:#3A6CF4;
  --cyan:#12A8AE;
  --cyan-soft:#E4F6F7;
  --orange:#F08A24;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --band:#EEF3FC;
  --line:#E3E9F5;
  --divider:#EDF1F8;
  --text:#26324A;
  --muted:#68758F;
  --white:#FFFFFF;
  --ok:#22A06B;
  --warn:#E0A030;
  --err:#D9534F;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:16px;
  --r-pill:999px;
  --sh:0 6px 24px rgba(28,48,96,.08);
  --sh-hover:0 12px 32px rgba(28,48,96,.14);
  --wrap:1200px;
  --gap:24px;
  --t:220ms ease;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;}
.num{font-variant-numeric:tabular-nums;font-weight:600;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(28,48,96,.09);}
.nav-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  min-height:72px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side--right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:2px;border-radius:2px;
  background:var(--brand);
  transition:width var(--t);
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.is-active::after{width:100%;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  justify-self:center;
  color:var(--brand);
  font-weight:700;
}
.brand:hover{color:var(--brand-ink);}
.brand-mark{width:24px;height:24px;color:var(--cyan);flex:none;}
.brand-text{font-size:18px;letter-spacing:.4px;white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--brand-ink);}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:16px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--card);
  align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{display:none;border-top:1px solid var(--line);background:var(--card);}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;
  padding:0 20px;
  line-height:52px;
  font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--divider);
}
.mobile-panel a.is-active{color:var(--brand);font-weight:600;background:var(--band);}
.mobile-panel .panel-cta{margin:16px 20px 20px;display:block;text-align:center;}

/* ============ 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;
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(35,64,142,.22);}
.btn-primary:hover{background:var(--brand-ink);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(35,64,142,.08);color:var(--brand-ink);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);background:rgba(35,64,142,.14);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  position:relative;padding-bottom:2px;
}
.btn-text::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;background:var(--brand);
  transition:width var(--t);
}
.btn-text:hover::after{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;
  background-color:var(--band);
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
  padding:44px 0 60px;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(35,64,142,.05) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.9;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(245,248,253,.96) 0%,rgba(245,248,253,.88) 46%,rgba(238,243,252,.62) 100%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  align-items:center;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:#B7C2D8;}
.crumb strong{color:var(--brand);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--cyan);
  background:rgba(18,168,174,.1);
  border:1px solid rgba(18,168,174,.24);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:16px;
}
.hero h1{
  font-size:clamp(28px,4.2vw,44px);
  color:var(--brand-deep);
  margin-bottom:16px;
}
.hero-sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:14px;}
.hero-note{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.hero-note i{
  width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block;flex:none;
}
.hero-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--sh-hover);
  background:var(--card);
}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-media figcaption{
  position:absolute;left:16px;bottom:16px;
  font-size:13px;color:#fff;
  background:rgba(22,41,94,.78);
  border-radius:var(--r-pill);
  padding:6px 14px;
  backdrop-filter:blur(4px);
}

/* ============ 锚点胶囊 ============ */
.pill-bar{
  background:var(--card);
  border-bottom:1px solid var(--line);
  position:relative;z-index:5;
}
.pill-inner{
  display:flex;gap:12px;flex-wrap:wrap;
  padding:16px 0;
}
.pill{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--text);
  font-size:14px;
  transition:all var(--t);
}
.pill:hover{border-color:var(--brand);color:var(--brand);background:rgba(35,64,142,.05);}
.pill.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section--band{background:var(--band);}
.section--white{background:var(--card);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.6vw,30px);color:var(--brand-deep);margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15.5px;}
.section-head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none;
}

/* ============ 数据条 ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
}
.stat{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--sh);
  transition:box-shadow var(--t),transform var(--t);
}
.stat:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.stat-num{font-size:30px;color:var(--brand);line-height:1.1;}
.stat-num em{font-style:normal;font-size:15px;color:var(--muted);margin-left:4px;font-weight:500;}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:.72fr 1.28fr;
  gap:48px;
  align-items:start;
}
.faq-aside h2{font-size:clamp(24px,2.6vw,30px);color:var(--brand-deep);margin-bottom:14px;}
.faq-aside p{color:var(--muted);font-size:15.5px;margin-bottom:20px;}
.faq-aside .aside-tip{
  background:var(--card);
  border:1px solid var(--line);
  border-left:4px solid var(--cyan);
  border-radius:10px;
  padding:16px 18px;
  font-size:14px;
  color:var(--text);
  box-shadow:var(--sh);
}
.faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;}
.faq-item{border-top:1px solid var(--divider);}
.faq-item:first-child{border-top:0;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;
  padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--text);
  transition:background var(--t),color var(--t);
}
.faq-q:hover{background:var(--band);color:var(--brand);}
.faq-icon{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-q{color:var(--brand);background:var(--band);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 280ms ease;
}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ============ 联系渠道 ============ */
.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.channel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.channel:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:#D3DCF0;}
.channel-icon{
  width:46px;height:46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,168,174,.12);
  color:var(--cyan);
  margin-bottom:16px;
}
.channel-icon svg{width:22px;height:22px;}
.channel h3{font-size:18px;color:var(--brand-deep);margin-bottom:8px;}
.channel p{font-size:14.5px;color:var(--muted);}
.channel strong{color:var(--text);font-weight:600;}

/* ============ 留言表单 ============ */
.ask{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:start;
}
.ask-copy h2{font-size:clamp(24px,2.6vw,30px);color:var(--brand-deep);margin-bottom:16px;}
.ask-copy > p{color:var(--muted);font-size:15.5px;margin-bottom:26px;}
.ask-list li{
  display:flex;gap:14px;
  padding:16px 0;
  border-top:1px solid var(--divider);
}
.ask-list li:first-child{border-top:0;}
.ask-list .dot-num{
  flex:none;width:28px;height:28px;border-radius:50%;
  border:1.5px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;
  transition:background var(--t),color var(--t);
}
.ask-list li:hover .dot-num{background:var(--brand);color:#fff;}
.ask-list h4{font-size:16px;margin-bottom:4px;color:var(--text);}
.ask-list p{font-size:14px;color:var(--muted);}
.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px;
  box-shadow:var(--sh-hover);
}
.form-card h3{font-size:19px;color:var(--brand-deep);margin-bottom:6px;}
.form-card .form-hint{font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field .req{color:var(--err);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#FBFCFE;
  padding:0 14px;
  height:48px;
  font-size:15px;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(58,108,244,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);}
.field-msg{display:none;font-size:13px;color:var(--err);margin-top:6px;}
.field.has-error .field-msg{display:block;}
.form-foot{display:flex;gap:16px;align-items:center;flex-wrap:wrap;}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:14px;}
.form-status{display:none;font-size:14px;margin-top:12px;}
.form-status.is-ok{display:block;color:var(--ok);}
.form-status.is-err{display:block;color:var(--err);}
.dots{display:none;gap:4px;align-items:center;}
.dots i{width:5px;height:5px;border-radius:50%;background:#fff;display:block;animation:blink 1s infinite ease-in-out;}
.dots i:nth-child(2){animation-delay:.16s;}
.dots i:nth-child(3){animation-delay:.32s;}
@keyframes blink{0%,80%,100%{opacity:.35;transform:translateY(0);}40%{opacity:1;transform:translateY(-2px);}}
.btn.is-loading .btn-label{display:none;}
.btn.is-loading .dots{display:inline-flex;}

/* ============ 相关分类 ============ */
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.cat-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  transition:box-shadow var(--t),transform var(--t);
  color:inherit;
}
.cat-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);color:inherit;}
.cat-card figure{margin:0;position:relative;overflow:hidden;}
.cat-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 400ms ease;}
.cat-card:hover img{transform:scale(1.04);}
.cat-tag{
  position:absolute;left:12px;top:12px;
  background:rgba(18,168,174,.92);color:#fff;
  font-size:12px;font-weight:600;
  border-radius:var(--r-pill);
  padding:4px 12px;
}
.cat-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.cat-body h3{font-size:16.5px;color:var(--brand-deep);}
.cat-body p{font-size:14px;color:var(--muted);flex:1;}
.cat-body .btn-text{font-size:14px;}
.cat-card.is-current{border-color:var(--brand);}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  background-color:var(--band);
  background-image:radial-gradient(rgba(35,64,142,.055) 1px,transparent 1px);
  background-size:18px 18px;
  border:1px solid rgba(35,64,142,.18);
  border-radius:20px;
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  overflow:hidden;
}
.cta-band h2{font-size:clamp(21px,2.4vw,26px);color:var(--brand-deep);margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:15px;max-width:620px;}

/* ============ 页脚 ============ */
.site-footer{background:#F0F4FB;border-top:1px solid var(--line);margin-top:0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding:56px 20px 40px;
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;}
.footer-col h3{font-size:15px;color:var(--brand-deep);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--brand);}
.contact-list li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--muted);
}
.contact-list svg{width:17px;height:17px;color:var(--cyan);flex:none;}
.footer-bar{border-top:1px solid var(--line);background:#EAF0F9;}
.footer-bar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;flex-wrap:wrap;
}
.footer-bar p{font-size:13px;color:var(--muted);}
.footer-bar a{font-size:13px;color:var(--muted);}
.footer-bar a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .wrap{max-width:960px;}
  .hero-inner{gap:34px;}
}
@media (max-width:1023px){
  .nav-side,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{grid-template-columns:auto 1fr auto;}
  .brand{justify-self:start;order:-1;}
  .nav-right{justify-self:end;}
  .nav-inner{display:flex;justify-content:space-between;align-items:center;}
  .hero{padding:34px 0 48px;}
  .hero-inner{grid-template-columns:1fr;gap:30px;}
  .hero-media{order:-1;}
  .section{padding:60px 0;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .channels{grid-template-columns:repeat(2,1fr);}
  .ask{grid-template-columns:1fr;gap:34px;}
  .cats{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.72;}
  .wrap{padding:0 16px;}
  .brand-text{font-size:16px;}
  .hero h1{font-size:clamp(25px,6.4vw,32px);}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{flex:1;}
  .section{padding:48px 0;}
  .section-head--row{flex-direction:column;align-items:flex-start;}
  .stats,.channels,.cats{grid-template-columns:1fr;}
  .faq-q{padding:18px 18px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 20px;}
  .form-card{padding:22px 20px;}
  .cta-band{flex-direction:column;text-align:center;padding:32px 24px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;padding:40px 16px 28px;}
  .footer-bar-inner{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:480px){
  .brand-text{font-size:15px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn{width:100%;}
  .pill-inner{gap:8px;}
  .pill{height:34px;padding:0 14px;font-size:13px;}
}