/* roulang page: index */
:root{
  --primary:#1E63B0;
  --primary-hover:#17508F;
  --primary-active:#123F72;
  --primary-soft:rgba(30,99,176,.08);
  --primary-soft-2:rgba(30,99,176,.14);
  --accent:#F0842B;
  --success:#12A594;
  --neutral:#7A8896;
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --alt:#EEF3F9;
  --ink:#0F1B2A;
  --sub:#4E5F72;
  --muted:#8A97A6;
  --line:#E3E9F1;
  --divider:rgba(15,27,42,.06);
  --footer-bg:#0F2740;
  --shadow-s:0 4px 14px rgba(19,58,102,.06);
  --shadow-m:0 10px 28px rgba(19,58,102,.10);
  --r-card:16px;
  --r-img:14px;
  --r-sm:12px;
  --r-btn:10px;
  --font: "PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-body-font-family: var(--font);
  --bs-body-color:#0F1B2A;
  --bs-body-bg:#F5F7FA;
  --bs-link-color:#1E63B0;
  --bs-link-hover-color:#17508F;
  --bs-border-radius:12px;
  --bs-primary:#1E63B0;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--primary-hover)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:575px){.container{padding-left:16px;padding-right:16px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  text-decoration:none;white-space:nowrap;min-height:44px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-m)}
.btn-primary:active{background:var(--primary-active);transform:none;box-shadow:none}
.btn-outline{background:#fff;color:var(--primary);border-color:rgba(30,99,176,.35)}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-hover);transform:translateY(-2px)}
.btn-outline:active{transform:none;background:var(--primary-soft-2)}
.btn-soft{background:var(--primary-soft);color:var(--primary);border-color:transparent}
.btn-soft:hover{background:var(--primary-soft-2);color:var(--primary-hover);transform:translateY(-2px)}
.btn-soft:active{transform:none}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;border-bottom:1px solid rgba(30,99,176,.35);padding-bottom:2px}
.link-arrow:hover{border-bottom-color:var(--primary)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-s)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary),#2E7FD1);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.3px}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:30px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:72px;
  font-size:15px;color:var(--sub);font-weight:500;
  transition:color .18s ease-out,transform .18s ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:20px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform .2s ease-out;
}
.main-nav a:hover{color:var(--primary);transform:translateY(-1px)}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (max-width:991px){
  .header-inner{height:64px;gap:12px}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-m);
    padding:8px 16px 18px;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
    max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:none}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{height:auto;padding:14px 4px;min-height:48px;font-size:16px;border-bottom:1px solid var(--divider)}
  .main-nav a::after{display:none}
  .main-nav a.active{background:var(--primary-soft);border-radius:10px;padding-left:12px}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .main-nav .nav-cta-mobile{display:flex !important;margin-top:14px}
}
.nav-cta-mobile{display:none}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--alt)}
.section-white{background:#fff}
@media (max-width:991px){.section{padding:60px 0}}
@media (max-width:575px){.section{padding:46px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:28px;letter-spacing:-.2px}
.section-note{font-size:14px;color:var(--muted);max-width:420px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  letter-spacing:.4px;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--primary)}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:var(--primary-soft);color:var(--primary);
}
.tag-green{background:rgba(18,165,148,.12);color:#0C8577}
.tag-gray{background:rgba(122,136,150,.14);color:#66727F}

/* ---------- Hero ---------- */
.hero{position:relative;padding:56px 0 72px;background:linear-gradient(180deg,#F8FAFD 0%,var(--bg) 100%);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.06;pointer-events:none;
}
.hero .container{position:relative;z-index:1}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:16/9;background:#DCE5F0;box-shadow:var(--shadow-m);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.status-badge{
  position:absolute;top:14px;left:14px;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:#fff;background:var(--neutral);
  backdrop-filter:saturate(120%);
}
.status-badge.is-preview{background:rgba(240,132,43,.94)}
.status-badge.is-live{background:rgba(18,165,148,.94)}
.status-badge .dot{width:6px;height:6px;border-radius:50%;background:#fff;opacity:.9}
.duration-pill{
  position:absolute;right:14px;bottom:14px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:#fff;background:rgba(15,27,42,.62);
}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:56px;height:56px;border-radius:50%;
  background:rgba(255,255,255,.94);border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(15,27,42,.22);
  transition:transform .18s ease-out,background-color .18s ease-out;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06);background:#fff}
.play-btn:active{transform:translate(-50%,-50%) scale(.98)}
.play-btn svg{width:20px;height:20px;fill:var(--primary);margin-left:3px}
.hero h1{font-size:38px;letter-spacing:-.5px;margin-bottom:14px}
@media (max-width:991px){.hero h1{font-size:30px}}
@media (max-width:575px){.hero h1{font-size:26px}}
.hero-sub{font-size:16.5px;color:var(--sub);margin-bottom:22px;max-width:520px}
.countdown{display:flex;gap:10px;margin-bottom:22px}
.cd-cell{
  flex:1 1 0;min-width:0;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:12px 6px;text-align:center;
  box-shadow:var(--shadow-s);
}
.cd-num{
  display:block;font-size:26px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.cd-cell.is-second .cd-num{color:var(--accent)}
.cd-unit{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.hero-info{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;color:var(--muted);margin-bottom:24px}
.hero-info li{display:inline-flex;align-items:center;gap:6px}
.hero-info li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);opacity:.55}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.hero-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:16px 18px;box-shadow:var(--shadow-s)}
.hero-form label{display:block;font-size:13.5px;font-weight:600;color:var(--sub);margin-bottom:8px}
.field-row{display:flex;gap:10px}
.form-control{
  flex:1 1 auto;width:100%;height:46px;padding:0 14px;
  font-size:15px;color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.form-control::placeholder{color:var(--muted)}
.form-control:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-soft);
}
.form-note{font-size:13px;color:var(--muted);margin-top:10px}
@media (max-width:575px){
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .hero-actions .btn{width:100%}
}

/* ---------- 看点时间轴 ---------- */
.timeline{position:relative;display:flex;flex-direction:column;gap:18px}
.tl-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:18px}
.tl-axis{position:relative;display:flex;justify-content:center}
.tl-axis::before{
  content:"";position:absolute;top:6px;bottom:-24px;width:2px;
  background:linear-gradient(180deg,var(--primary-soft-2),rgba(30,99,176,.12));
  border-radius:2px;
}
.tl-item:last-child .tl-axis::before{display:none}
.tl-dot{
  position:relative;z-index:1;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid rgba(30,99,176,.35);margin-top:8px;
}
.tl-item.is-active .tl-dot{background:var(--primary);border-color:var(--primary);box-shadow:0 0 0 5px var(--primary-soft)}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-s);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:rgba(30,99,176,.25)}
.tl-time{font-size:13px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.3px}
.tl-card h3{font-size:20px;margin:8px 0 8px}
.tl-card p{font-size:15px;color:var(--sub)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tl-lead{grid-column:1 / -1;grid-template-columns:56px 1fr}
.tl-lead .tl-inner{display:grid;grid-template-columns:300px 1fr;gap:24px;align-items:center}
.tl-lead .tl-thumb{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;background:#DCE5F0}
.tl-lead .tl-thumb img{width:100%;height:100%;object-fit:cover}
@media (max-width:767px){
  .tl-lead .tl-inner{grid-template-columns:1fr;gap:16px}
  .tl-item{grid-template-columns:36px 1fr;gap:12px}
  .tl-lead{grid-template-columns:36px 1fr}
}

/* ---------- 提醒订阅条 ---------- */
.subscribe-bar{
  background:var(--primary-soft);border-radius:20px;
  padding:32px 34px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  border:1px solid rgba(30,99,176,.14);
}
.subscribe-bar .sb-text{flex:1 1 320px}
.subscribe-bar h3{font-size:21px;margin-bottom:8px}
.subscribe-bar p{font-size:14.5px;color:var(--sub)}
.subscribe-bar form{flex:1 1 400px;display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap}
.subscribe-bar .form-control{background:#fff;min-width:200px}
.subscribe-bar .form-note{flex:1 1 100%;margin-top:2px}
@media (max-width:767px){
  .subscribe-bar{padding:24px 20px;border-radius:16px}
  .subscribe-bar form{flex-direction:column}
  .subscribe-bar form .btn{width:100%}
}

/* ---------- 回放卡带 ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.rail-head h2{font-size:28px}
.rail{display:flex;gap:20px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:rgba(30,99,176,.22);border-radius:6px}
.rail-item{flex:0 0 calc(25% - 15px);scroll-snap-align:start}
@media (max-width:1199px){.rail-item{flex:0 0 calc(33.333% - 14px)}}
@media (max-width:991px){.rail-item{flex:0 0 calc(50% - 10px)}}
@media (max-width:767px){.rail-item{flex:0 0 82%}}
.live-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-s);height:100%;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.live-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m)}
.poster{position:relative;aspect-ratio:16/9;background:#DCE5F0;overflow:hidden}
.poster img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.live-card:hover .poster img{transform:scale(1.03)}
.live-card .poster .status-badge{top:12px;left:12px}
.live-card .poster .duration-pill{right:12px;bottom:12px}
.live-body{padding:18px 20px 20px}
.live-body h3{font-size:17px;line-height:1.45;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.live-meta{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.live-meta span{display:inline-flex;align-items:center;gap:6px}
.live-meta span + span::before{content:"";width:3px;height:3px;border-radius:50%;background:var(--muted);display:inline-block}

/* ---------- 最新信息 ---------- */
.latest-main{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-s);height:100%;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.latest-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-m)}
.latest-cover{aspect-ratio:16/9;background:#DCE5F0;overflow:hidden}
.latest-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.latest-main:hover .latest-cover img{transform:scale(1.03)}
.latest-main .lb-body{padding:24px 26px 26px}
.latest-main h3{font-size:22px;line-height:1.4;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.latest-main p{font-size:15px;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.latest-side{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-s);overflow:hidden}
.latest-item{display:block;padding:18px 22px;border-bottom:1px solid var(--divider);transition:background-color .18s ease-out}
.latest-item:last-child{border-bottom:none}
.latest-item:hover{background:var(--primary-soft)}
.latest-item h4{font-size:15.5px;font-weight:600;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink)}
.latest-item:hover h4{color:var(--primary)}
.latest-item .li-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;
}
.empty-state .es-icon{
  width:56px;height:56px;border-radius:16px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
}
.empty-state .es-icon svg{width:26px;height:26px;fill:var(--primary)}
.empty-state p{font-size:15px;color:var(--sub);margin-bottom:18px}

/* ---------- 分类胶囊 ---------- */
.cat-chips{display:flex;flex-wrap:wrap;gap:14px}
.chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--ink);
  box-shadow:var(--shadow-s);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.chip:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:rgba(30,99,176,.32);color:var(--primary)}
.chip svg{width:18px;height:18px;fill:var(--primary);flex:0 0 auto}
.chip.is-soft{background:var(--primary-soft);border-color:transparent}

/* ---------- 可信数据 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-s);
}
.stat-num{font-size:32px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-label{font-size:14px;color:var(--muted);margin-top:8px}
@media (max-width:991px){.stats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575px){.stats{grid-template-columns:1fr;gap:14px}}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
@media (max-width:991px){.faq-wrap{grid-template-columns:1fr;gap:28px}}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item.open{border-color:rgba(30,99,176,.3);background:#FBFCFE;box-shadow:var(--shadow-s)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(30,99,176,.4);position:relative;
  transition:background-color .18s ease-out,border-color .18s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  left:50%;top:50%;transform:translate(-50%,-50%);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-icon::before{width:11px;height:1.6px}
.faq-icon::after{width:1.6px;height:11px}
.faq-item.open .faq-icon{background:var(--primary);border-color:var(--primary)}
.faq-item.open .faq-icon::before{background:#fff}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--sub);line-height:1.8}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:linear-gradient(180deg,#EAF2FB 0%,#E3EDF9 100%);
  border:1px solid rgba(30,99,176,.14);
  border-radius:20px;padding:48px 44px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
}
@media (max-width:991px){.cta-band{grid-template-columns:1fr;gap:26px;padding:34px 24px}}
.cta-band h2{font-size:28px;margin-bottom:12px}
.cta-band p{font-size:15.5px;color:var(--sub);max-width:520px}
.cta-form{background:#fff;border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-s)}
.cta-form .form-control{margin-bottom:12px}
.cta-form .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;gap:26px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-brand strong{color:#fff;font-size:16.5px;letter-spacing:.2px}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--accent)}
.footer-contact p{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:14px}
.footer-form{display:flex;gap:8px}
.footer-form .form-control{
  background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#fff;height:44px;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.42)}
.footer-form .form-control:focus{background:rgba(255,255,255,.12);border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,132,43,.2)}
.footer-form .btn{background:var(--primary);color:#fff;padding:11px 18px}
.footer-form .btn:hover{background:var(--primary-hover);transform:translateY(-2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --bs-primary:#1E63B0;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-body-color:#4E5F72;
  --bs-body-bg:#F5F7FA;
  --bs-link-color:#1E63B0;
  --bs-link-hover-color:#17508F;
  --bs-border-radius:12px;
  --primary:#1E63B0;
  --primary-hover:#17508F;
  --primary-active:#123F72;
  --primary-soft:rgba(30,99,176,.08);
  --accent:#F0842B;
  --success:#12A594;
  --neutral:#7A8896;
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --alt:#EEF3F9;
  --ink:#0F1B2A;
  --sub:#4E5F72;
  --muted:#8A97A6;
  --line:#E3E9F1;
  --divider:rgba(15,27,42,.06);
  --shadow-s:0 4px 14px rgba(19,58,102,.06);
  --shadow-m:0 10px 28px rgba(19,58,102,.10);
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--sub);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  margin:0;
  overflow-x:hidden;
}
a{text-decoration:none;transition:color .16s ease-out,background-color .16s ease-out,border-color .16s ease-out}
img{max-width:100%;height:auto}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:600;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding-left:16px;padding-right:16px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:12px 24px;min-height:44px;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  text-decoration:none;font-family:inherit;
  transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-s)}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-m)}
.btn-primary:active{background:var(--primary-active);transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;color:var(--primary);border-color:rgba(30,99,176,.35)}
.btn-outline:hover{color:var(--primary-hover);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-s)}
.btn-outline:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--primary-soft);color:var(--primary);border-color:transparent}
.btn-ghost:hover{background:rgba(30,99,176,.14);color:var(--primary-hover);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14.5px;min-height:40px}
.btn-block{width:100%}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--shadow-s)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,#1E63B0,#3C86D6);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;letter-spacing:.4px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-text strong{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.2px;margin-top:1px}
.main-nav{margin-left:auto;display:flex;align-items:center}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav ul li a{
  position:relative;display:block;padding:9px 13px;font-size:15px;color:var(--sub);
  border-radius:8px;transition:color .16s ease-out,transform .16s ease-out,background-color .16s ease-out;
}
.main-nav ul li a:hover{color:var(--primary);transform:translateY(-1px);background:var(--primary-soft)}
.main-nav ul li a.active{color:var(--primary);font-weight:600}
.main-nav ul li a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  border-radius:2px;background:var(--primary);
}
.header-actions{margin-left:14px;display:flex;align-items:center}
.nav-cta-mobile{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;margin-left:auto;padding:0;cursor:pointer;position:relative;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;
  margin:0 auto;transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span+span{margin-top:4px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 面包屑 ============ */
.breadcrumb-wrap{padding-top:22px}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--primary)}
.breadcrumb-nav .current{color:var(--primary);font-weight:600}
.breadcrumb-nav svg{width:12px;height:12px;flex-shrink:0;opacity:.55}

/* ============ 文章头部 ============ */
.article-head{padding:26px 0 26px;border-bottom:1px solid var(--divider)}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:var(--primary-soft);color:var(--primary);
  line-height:1.6;
}
.article-head h1{
  font-size:34px;font-weight:700;color:var(--ink);line-height:1.32;
  margin:16px 0 0;letter-spacing:-.2px;max-width:900px;
}
.article-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:18px;font-size:13.5px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9D4E0;flex-shrink:0}
.article-meta .src{color:var(--sub)}

/* ============ 主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:52px;
  align-items:start;padding:40px 0 0;
}
.article-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 44px;box-shadow:var(--shadow-s);min-width:0;
}
.article-body{font-size:17px;line-height:1.85;color:var(--sub);word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:26px;font-weight:600;color:var(--ink);line-height:1.35;
  margin:44px 0 18px;padding-left:16px;position:relative;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--ink);margin:32px 0 14px;scroll-margin-top:96px}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:24px 0 12px}
.article-body ul{margin:0 0 20px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:50%;
  background:var(--primary);opacity:.85;
}
.article-body ol{counter-reset:olist;margin:0 0 20px}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:10px;counter-increment:olist}
.article-body ol li::before{
  content:counter(olist);position:absolute;left:0;top:.18em;width:21px;height:21px;
  border-radius:50%;background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--primary-soft);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;
  color:var(--sub);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{max-width:100%;height:auto;border-radius:12px;display:block;margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figure img{margin:0 auto}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-hover)}
.article-body strong{color:var(--ink);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--divider);margin:34px 0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;
  margin:24px 0;border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body thead th{background:var(--primary-soft);color:var(--ink);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body tbody tr:nth-child(even){background:#FAFCFE}
.article-body tbody tr:last-child td{border-bottom:none}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:64px 24px;background:var(--bg);
  border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state svg{width:56px;height:56px;stroke:var(--muted);opacity:.6;margin-bottom:16px}
.empty-state h3{font-size:19px;color:var(--ink);margin-bottom:8px}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:22px}

/* ============ 标签行 ============ */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--divider);
}
.tag-row .tag-label{font-size:13.5px;color:var(--muted);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--alt);color:var(--sub);font-size:13px;line-height:1.6;
  transition:background-color .16s ease-out,color .16s ease-out,transform .16s ease-out;
}
.tag:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-1px)}

/* ============ 上一篇/下一篇 ============ */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:32px}
.post-nav a{
  display:block;padding:18px 20px;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:rgba(30,99,176,.3)}
.post-nav .pn-label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:8px}
.post-nav .pn-title{display:block;font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.55}
.post-nav a:hover .pn-title{color:var(--primary)}

/* ============ 相关推荐 ============ */
.related-block{margin-top:40px;padding-top:28px;border-top:1px solid var(--divider)}
.related-block h3{font-size:19px;color:var(--ink);margin-bottom:20px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m)}
.rel-thumb{position:relative;width:100%;aspect-ratio:16/9;background:var(--alt);overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:16px 18px 18px}
.rel-body h4{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.back-row{margin-top:34px}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-s);
}
.side-card h3{
  font-size:16px;font-weight:600;color:var(--ink);margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px solid var(--divider);
}
.toc-list{display:flex;flex-direction:column;gap:3px}
.toc-list a{
  display:block;padding:8px 12px;font-size:14px;color:var(--sub);border-radius:8px;
  border-left:2px solid transparent;line-height:1.6;
  transition:color .16s ease-out,background-color .16s ease-out,border-color .16s ease-out;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.toc-list a:hover{color:var(--primary);background:var(--primary-soft)}
.toc-list a.is-active{color:var(--primary);font-weight:600;background:var(--primary-soft);border-left-color:var(--primary)}
.side-list li+li{margin-top:14px;padding-top:14px;border-top:1px solid var(--divider)}
.side-list a{display:block}
.side-list .sl-title{
  font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.side-list a:hover .sl-title{color:var(--primary)}
.side-list .sl-meta{display:block;font-size:12.5px;color:var(--muted);margin-top:6px}
.side-sub p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:14px}
.side-sub .form-control{margin-bottom:10px}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:8px}

/* ============ 表单 ============ */
.form-control{
  display:block;width:100%;height:48px;padding:0 15px;font-size:15px;
  color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  font-family:inherit;transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.form-control::placeholder{color:#A9B5C2}
.form-control:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(30,99,176,.12);
}

/* ============ 底部订阅条 ============ */
.subscribe-strip{
  margin-top:56px;background:var(--primary-soft);border-radius:20px;
  padding:32px 36px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;
  border:1px solid rgba(30,99,176,.12);
}
.subscribe-strip .ss-text{flex:1 1 320px;min-width:260px}
.subscribe-strip h3{font-size:21px;color:var(--ink);margin-bottom:8px}
.subscribe-strip p{font-size:14.5px;color:var(--sub);line-height:1.75}
.subscribe-strip form{flex:1 1 380px;display:flex;gap:12px;align-items:flex-start}
.subscribe-strip form .field{flex:1 1 auto;min-width:0}
.subscribe-strip .btn{flex-shrink:0;min-width:130px}

/* ============ 页脚 ============ */
.site-footer{background:#0F2740;color:#C3D3E4;padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{
  width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#2A76C4,#4E9BE0);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13.5px;
}
.footer-brand strong{font-size:16.5px;color:#fff;font-weight:700;letter-spacing:.2px}
.footer-about{font-size:13.8px;line-height:1.85;color:rgba(195,211,228,.72);max-width:330px}
.footer-col h4{font-size:15px;font-weight:600;color:#EAF2FA;margin-bottom:18px}
.footer-col ul li+li{margin-top:11px}
.footer-col ul li a{font-size:14px;color:rgba(195,211,228,.78)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact p{font-size:13.8px;line-height:1.8;color:rgba(195,211,228,.72);margin-bottom:14px}
.footer-form{display:flex;gap:10px}
.footer-form .form-control{
  height:44px;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);
  color:#fff;font-size:14px;
}
.footer-form .form-control::placeholder{color:rgba(195,211,228,.55)}
.footer-form .form-control:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(240,132,43,.16)}
.footer-form .btn{background:var(--primary);color:#fff;padding:0 20px;min-height:44px;font-size:14.5px;flex-shrink:0}
.footer-form .btn:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-m)}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(195,211,228,.62);
}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:36px}
}
@media (max-width:991px){
  .main-nav{
    position:absolute;left:0;right:0;top:72px;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-m);
    flex-direction:column;align-items:stretch;padding:14px 16px 20px;
    display:none;margin-left:0;
  }
  .main-nav.is-open{display:flex}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .main-nav ul li a{padding:13px 12px;font-size:15.5px;min-height:46px;display:flex;align-items:center;border-radius:10px}
  .main-nav ul li a.active::after{display:none}
  .main-nav ul li a.active{background:var(--primary-soft)}
  .nav-cta-mobile{
    display:inline-flex;margin-top:14px;width:100%;min-height:48px;
    align-items:center;justify-content:center;background:var(--primary);color:#fff;
    border-radius:var(--r-btn);font-weight:600;font-size:15px;
  }
  .nav-toggle{display:block}
  .header-actions{display:none}
  .article-layout{grid-template-columns:1fr;gap:28px;padding-top:32px}
  .article-side{position:static}
  .article-main{padding:32px 28px}
  .subscribe-strip{padding:26px 24px;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .brand-text em{display:none}
  .article-head{padding:20px 0 22px}
  .article-head h1{font-size:27px;line-height:1.36}
  .article-main{padding:24px 20px;border-radius:14px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px;margin:34px 0 16px}
  .article-body h3{font-size:18.5px}
  .related-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .subscribe-strip form{flex-direction:column;gap:12px}
  .subscribe-strip .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --primary:#1E63B0;
  --primary-hover:#17508F;
  --primary-active:#123F72;
  --primary-soft:rgba(30,99,176,.08);
  --primary-mid:rgba(30,99,176,.14);
  --accent:#F0842B;
  --accent-deep:#B6620F;
  --success:#12A594;
  --neutral:#7A8896;
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --alt:#EEF3F9;
  --ink:#0F1B2A;
  --sub:#4E5F72;
  --muted:#8A97A6;
  --line:#E3E9F1;
  --divider:rgba(15,27,42,.06);
  --shadow-s:0 4px 14px rgba(19,58,102,.06);
  --shadow-m:0 10px 28px rgba(19,58,102,.10);
  --radius-card:16px;
  --radius-media:14px;
  --radius-btn:10px;
  --radius-pill:999px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--sub);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;line-height:1.32;margin:0;}
p{margin:0 0 16px;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--primary-hover);}
img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1280px;}}
@media (max-width:767.98px){.container{padding:0 16px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-s);}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,#2A78C8,var(--primary));
  color:#fff;display:grid;place-items:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;
}
.brand-text strong{display:block;font-size:17px;font-weight:700;color:var(--ink);line-height:1.2;}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.2px;line-height:1.5;}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-toggle:hover{border-color:var(--primary);box-shadow:var(--shadow-s);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease-out,opacity .2s ease-out;}
.main-nav{display:flex;align-items:center;margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0;}
.main-nav ul a{
  position:relative;display:inline-block;padding:8px 2px;
  font-size:15px;color:var(--ink);
  transition:color .18s ease-out,transform .18s ease-out;
}
.main-nav ul a:hover{color:var(--primary);transform:translateY(-1px);}
.main-nav ul a.active{color:var(--primary);font-weight:600;}
.main-nav ul a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  border-radius:2px;background:var(--primary);
}
.nav-cta-mobile{display:none;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-s);}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-m);}
.btn-primary:active{background:var(--primary-active);transform:translateY(0);box-shadow:none;}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-s);}
.btn-outline:active{transform:translateY(0);box-shadow:none;background:var(--primary-mid);}
.btn-ghost{background:var(--primary-soft);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-mid);color:var(--primary-hover);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;padding:0;
  height:auto;background:none;border:0;color:var(--primary);
  font-size:15px;font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.btn-link:hover{color:var(--primary-hover);}
.btn-link svg{transition:transform .18s ease-out;}
.btn-link:hover svg{transform:translateX(3px);}

/* ---------- 表单 ---------- */
.form-control{
  width:100%;height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;color:var(--ink);font-size:15px;line-height:1.4;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.form-control::placeholder{color:var(--muted);}
.form-control:focus{
  border-color:var(--primary);outline:none;
  box-shadow:0 0 0 3px rgba(30,99,176,.14);
}
.form-note{font-size:13px;color:var(--muted);margin:10px 0 0;line-height:1.7;}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;overflow:hidden;}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cat-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(30,99,176,.94) 0%,rgba(23,80,143,.86) 55%,rgba(18,63,114,.72) 100%);
}
.cat-hero__inner{
  position:relative;z-index:1;
  min-height:260px;padding:56px 0 52px;
  display:flex;flex-direction:column;justify-content:center;gap:16px;
}
.eyebrow{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;width:fit-content;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:12.5px;font-weight:600;letter-spacing:.4px;
}
.cat-hero h1{color:#fff;font-size:38px;letter-spacing:.3px;}
.cat-hero p{color:rgba(255,255,255,.88);font-size:17px;line-height:1.8;margin:0;max-width:700px;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:20px 0 0;}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:#C3CEDB;display:inline-flex;}
.crumbs .current{color:var(--primary);font-weight:600;}

/* ---------- 数据条 ---------- */
.stat-strip{
  margin-top:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-s);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  padding:26px 8px;
}
.stat-item{padding:0 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:none;}
.stat-item strong{
  display:block;color:var(--primary);font-size:26px;line-height:1.3;
  font-weight:700;font-variant-numeric:tabular-nums;
}
.stat-item span{display:block;font-size:14px;color:var(--muted);margin-top:2px;}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section--tight{padding-top:52px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:28px;}
.section-head .lead{font-size:15px;color:var(--muted);margin:8px 0 0;max-width:620px;}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-s);padding:6px 32px;
}

/* ---------- 交替图文条目 ---------- */
.entry{
  display:grid;grid-template-columns:320px minmax(0,1fr);
  gap:36px;align-items:center;
  padding:34px 0;border-bottom:1px solid var(--line);
}
.entry:last-child{border-bottom:none;}
.entry--flip{grid-template-columns:minmax(0,1fr) 320px;}
.entry--flip .entry__media{order:2;}
.entry--flip .entry__body{order:1;}
.entry__media{
  position:relative;overflow:hidden;border-radius:var(--radius-media);
  aspect-ratio:16/10;background:var(--alt);
}
.entry__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.entry:hover .entry__media img{transform:scale(1.03);}
.entry__body{min-width:0;}
.entry__tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px;}
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:12.5px;font-weight:600;
  background:var(--primary-soft);color:var(--primary);
}
.badge-soon{background:rgba(240,132,43,.12);color:var(--accent-deep);}
.badge-live{background:rgba(18,165,148,.12);color:#0B7C6F;}
.badge-neutral{background:rgba(122,136,150,.14);color:#5B6875;}
.entry__body h3{font-size:20px;line-height:1.45;margin-bottom:10px;}
.entry__body h3 a{color:var(--ink);}
.entry__body h3 a:hover{color:var(--primary);}
.entry__body p{font-size:15px;line-height:1.8;color:var(--sub);margin:0 0 14px;}
.entry__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--muted);}
.entry__meta .dot{width:3px;height:3px;border-radius:50%;background:#C3CEDB;display:inline-block;}

/* ---------- 相邻栏目入口 ---------- */
.next-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.next-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-s);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
  display:flex;flex-direction:column;
}
.next-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);}
.next-card__media{position:relative;aspect-ratio:16/9;background:var(--alt);overflow:hidden;}
.next-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.next-card:hover .next-card__media img{transform:scale(1.03);}
.next-card__body{padding:24px 26px 26px;}
.next-card__body h3{font-size:20px;margin-bottom:10px;}
.next-card__body p{font-size:15px;line-height:1.8;color:var(--sub);margin:0 0 16px;}

/* ---------- 订阅条 ---------- */
.subscribe-wrap{padding:0 0 24px;}
.subscribe-bar{
  background:var(--primary-soft);border:1px solid rgba(30,99,176,.16);
  border-radius:20px;padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.subscribe-bar__text{max-width:520px;}
.subscribe-bar h2{font-size:23px;margin-bottom:8px;}
.subscribe-bar p{font-size:15px;color:var(--sub);margin:0;}
.subscribe-form{display:flex;gap:12px;flex:1 1 360px;min-width:280px;}
.subscribe-form .form-control{background:#fff;}
.subscribe-form .btn{flex:0 0 auto;min-width:132px;}
.subscribe-note{font-size:13px;color:var(--muted);margin:12px 0 0;width:100%;}

/* ---------- 返回区 ---------- */
.back-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:0 0 8px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2740;color:rgba(255,255,255,.68);margin-top:80px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:16px 0 0;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col ul a{color:rgba(255,255,255,.66);font-size:14px;}
.footer-col ul a:hover{color:var(--accent);}
.footer-contact p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0 0 14px;}
.footer-form{display:flex;gap:10px;}
.footer-form .form-control{
  flex:1;min-width:0;height:46px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);color:#fff;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.5);}
.footer-form .form-control:focus{background:rgba(255,255,255,.12);border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,132,43,.2);color:#fff;}
.footer-form .btn{height:46px;padding:0 20px;background:var(--accent);color:#fff;}
.footer-form .btn:hover{background:#DB7520;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-m);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .entry{grid-template-columns:280px minmax(0,1fr);gap:28px;}
  .entry--flip{grid-template-columns:minmax(0,1fr) 280px;}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex;}
  .header-actions{display:none;}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-m);padding:10px 16px 22px;
    margin-left:0;max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .main-nav.is-open{display:flex;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav ul li{border-bottom:1px solid var(--line);}
  .main-nav ul a{display:flex;align-items:center;min-height:48px;padding:0 6px;font-size:16px;}
  .main-nav ul a:hover{transform:none;}
  .main-nav ul a.active::after{display:none;}
  .main-nav ul a.active{background:var(--primary-soft);border-radius:8px;padding-left:14px;}
  .nav-cta-mobile{display:inline-flex;margin-top:18px;width:100%;}
  .section{padding:56px 0;}
  .section--tight{padding-top:40px;}
  .entry,.entry--flip{grid-template-columns:minmax(0,1fr);gap:18px;padding:28px 0;}
  .entry--flip .entry__media{order:0;}
  .entry--flip .entry__body{order:0;}
  .cat-hero__inner{min-height:220px;padding:44px 0 40px;}
  .cat-hero h1{font-size:31px;}
  .panel{padding:6px 22px;}
  .next-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .footer-about{max-width:none;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .cat-hero__inner{min-height:190px;padding:36px 0 34px;gap:12px;}
  .cat-hero h1{font-size:27px;}
  .cat-hero p{font-size:15.5px;}
  .stat-strip{grid-template-columns:minmax(0,1fr);padding:8px 4px;}
  .stat-item{padding:16px 20px;border-right:none;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:none;}
  .section-head h2{font-size:23px;}
  .subscribe-bar{padding:26px 22px;gap:20px;}
  .subscribe-form{flex-direction:column;width:100%;}
  .subscribe-form .btn{width:100%;}
  .entry__body h3{font-size:18.5px;}
  .back-row .btn{width:100%;}
}
@media (max-width:575.98px){
  .brand-text em{display:none;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .panel{padding:4px 18px;}
  .next-card__body{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --primary:#1E63B0;
  --primary-hover:#17508F;
  --primary-active:#123F72;
  --primary-soft:rgba(30,99,176,.08);
  --accent:#F0842B;
  --accent-hover:#D9731F;
  --success:#12A594;
  --success-deep:#0E8576;
  --neutral:#7A8896;
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --alt:#EEF3F9;
  --ink:#0F1B2A;
  --sub:#4E5F72;
  --muted:#8A97A6;
  --line:#E3E9F1;
  --divider:rgba(15,27,42,.06);
  --shadow-s:0 4px 14px rgba(19,58,102,.06);
  --shadow-m:0 10px 28px rgba(19,58,102,.10);
  --radius-card:16px;
  --radius-img:13px;
  --radius-btn:10px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bs-body-font-family:var(--font);
  --bs-body-color:var(--ink);
  --bs-body-bg:var(--bg);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-hover);
  --bs-border-color:var(--line);
  --bs-primary:#1E63B0;
  --bs-primary-rgb:30,99,176;
  --bs-border-radius:12px;
  --bs-body-font-size:16.5px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--primary-hover)}
h1,h2,h3,h4,h5{line-height:1.32;font-weight:700;color:var(--ink);margin:0}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767.98px){.container{padding-left:16px;padding-right:16px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:none;box-shadow:none}
.btn:focus{outline:none;box-shadow:none}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:none}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;box-shadow:var(--shadow-s)}
.btn-primary:active{background:var(--primary-active);border-color:var(--primary-active);color:#fff}
.btn-outline-primary{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline-primary:hover{background:var(--primary-soft);border-color:var(--primary-hover);color:var(--primary-hover);box-shadow:var(--shadow-s)}
.btn-soft{background:var(--primary-soft);border-color:transparent;color:var(--primary)}
.btn-soft:hover{background:rgba(30,99,176,.14);color:var(--primary-hover)}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;border-radius:9px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(30,99,176,.35);padding-bottom:2px;
}
.link-arrow svg{transition:transform .18s ease-out}
.link-arrow:hover{border-color:var(--primary);color:var(--primary-hover)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft,.badge-success,.badge-neutral,.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge-soft,.chip{background:var(--primary-soft);color:var(--primary)}
.badge-success{background:rgba(18,165,148,.12);color:var(--success-deep)}
.badge-neutral{background:rgba(122,136,150,.14);color:#5B6975}
.chip{padding:8px 16px;font-size:13.5px}
.chip:hover{background:rgba(30,99,176,.14);color:var(--primary-hover)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-s)}
.header-inner{position:relative;display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:700;letter-spacing:.5px;
}
.brand-text strong{display:block;font-size:17px;font-weight:700;line-height:1.25;color:var(--ink)}
.brand-text em{display:block;font-style:normal;font-size:12.5px;color:var(--muted);letter-spacing:.2px}

.main-nav{margin-left:auto;display:flex;align-items:center;gap:28px}
.main-nav ul{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0}
.main-nav a{
  position:relative;display:inline-block;padding:8px 2px;font-size:15px;font-weight:500;color:var(--ink);
  transition:color .18s ease-out,transform .18s ease-out;
}
.main-nav a:hover{color:var(--primary);transform:translateY(-1px)}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--primary);
}
.nav-cta-mobile{display:none}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;margin-left:auto;padding:0 11px;
  background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle:hover{border-color:var(--primary);box-shadow:var(--shadow-s)}
.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)}

/* ---------- 顶部标题区 ---------- */
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:40px 0 36px}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--primary)}
.breadcrumb-nav .current{color:var(--primary);font-weight:600}
.breadcrumb-nav svg{flex:0 0 auto;opacity:.6}
.page-head h1{font-size:38px;letter-spacing:-.2px;max-width:900px}
.page-lead{margin-top:16px;font-size:17px;line-height:1.85;color:var(--sub);max-width:800px}
.head-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px}
.head-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--muted);opacity:.6}
.head-meta .meta-text{font-size:13.5px;color:var(--muted)}

/* ---------- 归档区 ---------- */
.archive{padding:64px 0 24px}
.archive-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;align-items:start}

.archive-side{position:sticky;top:104px}
.side-title{font-size:14px;font-weight:600;color:var(--muted);letter-spacing:.4px;margin-bottom:14px}
.anchor-list{list-style:none;border-left:2px solid var(--line)}
.anchor-list a{
  position:relative;display:block;padding:9px 0 9px 16px;font-size:14.5px;color:var(--sub);
  transition:color .18s ease-out;
}
.anchor-list a::before{
  content:"";position:absolute;left:-2px;top:50%;width:2px;height:0;background:var(--primary);
  transform:translateY(-50%);transition:height .18s ease-out;border-radius:2px;
}
.anchor-list a:hover{color:var(--primary)}
.anchor-list a.active{color:var(--primary);font-weight:600}
.anchor-list a.active::before{height:20px}

.side-card{
  margin-top:28px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-s);
}
.side-card h3{font-size:15.5px;margin-bottom:8px}
.side-card p{font-size:13.8px;line-height:1.75;color:var(--sub);margin-bottom:16px}
.side-card .btn{width:100%}

.month-block{margin-bottom:52px}
.month-head{display:flex;align-items:center;gap:14px;margin-bottom:6px}
.month-head h2{font-size:24px}
.month-head .count{font-size:13px;color:var(--muted)}
.month-note{font-size:14.5px;color:var(--sub);margin-bottom:18px}

.tl-list{list-style:none;border-top:1px solid var(--line)}
.tl-item{
  display:grid;grid-template-columns:96px minmax(0,1fr);gap:24px;
  padding:24px 16px 24px 4px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out;
}
.tl-item:hover{background:rgba(30,99,176,.035)}
.date-pill{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  width:78px;padding:9px 0;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.date-pill .d{font-size:22px;font-weight:700;line-height:1;color:var(--primary)}
.date-pill .m{font-size:12px;color:var(--primary);opacity:.78;letter-spacing:.3px}
.tl-body h3{font-size:19.5px;margin-bottom:8px}
.tl-body h3 a{color:var(--ink)}
.tl-body h3 a:hover{color:var(--primary)}
.tl-desc{
  font-size:15px;line-height:1.8;color:var(--sub);margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tl-foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.tl-foot .time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

.more-row{display:flex;justify-content:center;margin-top:32px}

/* ---------- 使用说明区 ---------- */
.guide-section{background:var(--alt);padding:80px 0;margin-top:40px}
.guide-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.media-frame{
  position:relative;border-radius:var(--radius-card);overflow:hidden;aspect-ratio:16/9;
  background:#D9E3EE;box-shadow:var(--shadow-m);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-tag{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.94);color:var(--primary);font-size:12.5px;font-weight:600;padding:5px 13px;border-radius:999px}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);padding:6px 14px;border-radius:999px;margin-bottom:18px}
.guide-copy h2{font-size:28px;margin-bottom:14px}
.guide-copy>p{font-size:16px;color:var(--sub);line-height:1.85;max-width:560px}
.steps{list-style:none;margin-top:28px}
.steps li{display:grid;grid-template-columns:42px minmax(0,1fr);gap:16px;padding:18px 0;border-top:1px solid var(--divider)}
.steps li:first-child{border-top:0;padding-top:6px}
.step-num{
  width:36px;height:36px;border-radius:11px;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;font-size:14.5px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.steps h3{font-size:17px;margin-bottom:6px}
.steps p{font-size:14.8px;color:var(--sub);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-section{padding:80px 0}
.faq-head{max-width:720px;margin-bottom:32px}
.faq-head h2{font-size:28px;margin-bottom:12px}
.faq-head p{font-size:16px;color:var(--sub)}
.faq-list{max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:rgba(30,99,176,.28)}
.faq-item.open{border-color:rgba(30,99,176,.38);background:#FBFCFE;box-shadow:var(--shadow-s)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-3px}
.faq-icon{
  position:relative;flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  border:1.5px solid var(--primary);display:grid;place-items:center;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-icon::before{width:11px;height:1.8px}
.faq-icon::after{width:1.8px;height:11px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-item.open .faq-a{max-height:460px}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--sub)}

/* ---------- 订阅 CTA ---------- */
.cta-band{background:var(--primary-soft);padding:72px 0;border-top:1px solid rgba(30,99,176,.10)}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-copy h2{font-size:28px;margin-bottom:14px}
.cta-copy p{font-size:16px;color:var(--sub);max-width:520px}
.cta-points{list-style:none;margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.cta-points li{font-size:13.5px;color:var(--primary);background:#fff;border:1px solid rgba(30,99,176,.16);padding:6px 14px;border-radius:999px}
.subscribe-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-m);
}
.subscribe-panel h3{font-size:18px;margin-bottom:8px}
.subscribe-panel .hint{font-size:14px;color:var(--sub);margin-bottom:18px}
.form-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px}
.form-label-sm{display:block;font-size:13.5px;font-weight:600;color:var(--sub);margin-bottom:8px}
.form-control{
  width:100%;height:48px;padding:0 16px;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.form-control::placeholder{color:var(--muted)}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,99,176,.14);outline:none}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;line-height:1.7}
.form-control.is-invalid{border-color:#D9534F;box-shadow:0 0 0 3px rgba(217,83,79,.12)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2740;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.35fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-brand strong{font-size:17.5px;color:#fff;font-weight:700}
.footer-about{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--accent)}
.footer-contact p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.62);margin-bottom:16px}
.footer-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
.footer-form .form-control{
  height:46px;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#fff;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.45)}
.footer-form .form-control:focus{background:rgba(255,255,255,.12);border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,132,43,.18)}
.footer-form .btn{background:var(--accent);border-color:var(--accent);color:#fff;min-height:46px;padding:0 20px}
.footer-form .btn:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:none}
.site-footer .btn:focus-visible{outline-color:#fff}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:52px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:rgba(255,255,255,.5);
}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .archive-layout{grid-template-columns:220px minmax(0,1fr);gap:40px}
  .guide-grid{gap:40px}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex}
  .header-actions{display:none}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;z-index:1040;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    margin-left:0;padding:12px 20px 22px;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-m);
  }
  .main-nav.open{display:flex}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{display:flex;align-items:center;min-height:46px;padding:12px 4px;font-size:16px;border-bottom:1px solid var(--divider)}
  .main-nav li:last-child a{border-bottom:0}
  .main-nav a.active::after{display:none}
  .main-nav a:hover{transform:none}
  .nav-cta-mobile{display:inline-flex;width:100%;margin-top:16px}

  .page-head{padding:32px 0 28px}
  .page-head h1{font-size:30px}
  .page-lead{font-size:16px}

  .archive{padding:48px 0 16px}
  .archive-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .archive-side{position:static;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-s)}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;border-left:0}
  .anchor-list a{padding:8px 14px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13.5px}
  .anchor-list a::before{display:none}
  .anchor-list a.active{background:var(--primary);color:#fff}
  .side-card{margin-top:20px;box-shadow:none;border-style:dashed}

  .guide-section{padding:56px 0}
  .guide-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .guide-copy h2{font-size:24px}
  .faq-section,.cta-band{padding:56px 0}
  .faq-head h2,.cta-copy h2{font-size:24px}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .brand-text em{display:none}
  .page-head h1{font-size:27px}
  .tl-item{grid-template-columns:minmax(0,1fr);gap:14px;padding:20px 8px 20px 4px}
  .date-pill{flex-direction:row;width:auto;padding:6px 14px;gap:6px}
  .date-pill .d{font-size:16px}
  .date-pill .m{font-size:12px}
  .tl-body h3{font-size:17.5px}
  .month-head h2{font-size:20px}
  .form-row{grid-template-columns:minmax(0,1fr)}
  .form-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-form{grid-template-columns:minmax(0,1fr)}
  .footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .subscribe-panel{padding:22px 18px}
}
@media (max-width:520px){
  .page-head h1{font-size:25px}
  .page-lead{font-size:15.5px}
  .tl-desc{-webkit-line-clamp:3}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --primary:#1E63B0;
  --primary-hover:#17508F;
  --primary-active:#123F72;
  --primary-soft:rgba(30,99,176,.08);
  --accent:#F0842B;
  --accent-soft:rgba(240,132,43,.12);
  --success:#12A594;
  --success-soft:rgba(18,165,148,.12);
  --neutral:#7A8896;
  --neutral-soft:rgba(122,136,150,.12);
  --bg:#F5F7FA;
  --surface:#FFFFFF;
  --alt:#EEF3F9;
  --ink:#0F1B2A;
  --sub:#4E5F72;
  --muted:#8A97A6;
  --line:#E3E9F1;
  --divider:rgba(15,27,42,.06);
  --shadow-s:0 4px 14px rgba(19,58,102,.06);
  --shadow-m:0 10px 28px rgba(19,58,102,.10);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;

  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-body-color:#0F1B2A;
  --bs-body-bg:#F5F7FA;
  --bs-primary:#1E63B0;
  --bs-primary-rgb:30,99,176;
  --bs-link-color:#1E63B0;
  --bs-link-hover-color:#17508F;
  --bs-border-color:#E3E9F1;
  --bs-border-radius:12px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:16px;
  --bs-body-line-height:1.75;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--bs-body-font-family);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;}
a:hover{color:var(--primary-hover);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{display:block;}

:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){ .container{max-width:1280px;} }
@media (max-width:767.98px){ .container{padding-left:16px;padding-right:16px;} }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  box-shadow:var(--shadow-s);
}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-m);}
.btn-primary:active{background:var(--primary-active);border-color:var(--primary-active);transform:translateY(0);box-shadow:none;color:#fff;}
.btn-outline{
  background:#fff;
  border-color:rgba(30,99,176,.45);
  color:var(--primary);
}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-hover);transform:translateY(-2px);}
.btn-outline:active{background:rgba(30,99,176,.14);transform:translateY(0);box-shadow:none;}
.btn-soft{
  background:var(--primary-soft);
  border-color:transparent;
  color:var(--primary-active);
}
.btn-soft:hover{background:rgba(30,99,176,.14);color:var(--primary-active);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1px solid rgba(30,99,176,.3);
  padding-bottom:2px;
}
.link-arrow:hover{color:var(--primary-hover);border-bottom-color:var(--primary-hover);gap:10px;}
.link-arrow svg{width:14px;height:14px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-s);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  background:linear-gradient(150deg,#1E63B0,#17508F);
  color:#fff;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--muted);margin-top:3px;}

.main-nav{display:flex;align-items:center;gap:8px;margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:30px;}
.main-nav ul li a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--sub);
  white-space:nowrap;
}
.main-nav ul li a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  transition:width .18s ease-out;
}
.main-nav ul li a:hover{color:var(--primary);transform:translateY(-1px);}
.main-nav ul li a:hover::after{width:100%;}
.main-nav ul li a.active{color:var(--primary);font-weight:600;}
.main-nav ul li a.active::after{width:100%;}
.nav-cta-mobile{display:none;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:transform .18s ease-out,opacity .18s ease-out;}
.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);}

@media (max-width:991.98px){
  .nav-toggle{display:flex;}
  .header-actions{display:none;}
  .main-nav{
    position:absolute;
    left:0;right:0;top:100%;
    display:block;
    margin-left:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-m);
    padding:8px 24px 20px;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s ease-out;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0);}
  .main-nav ul{display:block;padding:8px 0;}
  .main-nav ul li a{
    display:flex;
    align-items:center;
    min-height:48px;
    font-size:16px;
    color:var(--ink);
    border-bottom:1px solid var(--divider);
  }
  .main-nav ul li a::after{display:none;}
  .main-nav ul li a.active{color:var(--primary);font-weight:600;}
  .main-nav ul li:last-child a{border-bottom:0;}
  .nav-cta-mobile{display:flex;width:100%;margin-top:12px;}
}

/* ---------- 页面首屏 ---------- */
.page-hero{
  background:#fff;
  padding:44px 0 40px;
  border-bottom:1px solid var(--divider);
}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb svg{width:12px;height:12px;color:var(--muted);opacity:.7;}
.crumb .current{color:var(--primary);font-weight:600;}

.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--primary-soft);
  color:var(--primary-active);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--success);display:inline-block;}

.page-hero h1{
  font-size:38px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:900px;
}
.hero-lead{
  margin-top:16px;
  max-width:760px;
  font-size:17px;
  color:var(--sub);
  line-height:1.85;
}
.quick-jump{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--sub);
  font-size:14px;
  font-weight:500;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.pill:hover{background:#fff;color:var(--primary);border-color:rgba(30,99,176,.4);transform:translateY(-2px);}
.pill.active{background:var(--primary);border-color:var(--primary);color:#fff;}

@media (max-width:991.98px){
  .page-hero{padding:32px 0 32px;}
  .page-hero h1{font-size:30px;}
  .hero-lead{font-size:16px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;line-height:1.32;}
  .pill{min-height:44px;font-size:13.5px;padding:0 14px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--alt);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head h2{
  font-size:28px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:10px;
  max-width:680px;
  font-size:16px;
  color:var(--sub);
}
.section-head .head-link{flex:0 0 auto;}
@media (max-width:767.98px){
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:26px;}
  .section-head h2{font-size:23px;}
}

/* ---------- 图文条目 ---------- */
.feature-row{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:40px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:26px;
  box-shadow:var(--shadow-s);
}
.feature-media{
  position:relative;
  aspect-ratio:16/9;
  border-radius:var(--r-img);
  overflow:hidden;
  background:linear-gradient(135deg,#DDE7F3,#EEF3F9);
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.feature-row:hover .feature-media img{transform:scale(1.03);}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.35;}
.feature-body p{margin-top:14px;color:var(--sub);font-size:16px;}
.feature-points{margin-top:18px;display:grid;gap:10px;}
.feature-points li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--sub);
}
.feature-points li::before{
  content:"";
  flex:0 0 auto;
  width:7px;height:7px;
  margin-top:9px;
  border-radius:50%;
  background:var(--primary);
}
@media (max-width:991.98px){
  .feature-row{grid-template-columns:1fr;gap:22px;padding:18px;}
}

/* ---------- 卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.guide-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-s);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.guide-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:rgba(30,99,176,.25);}
.guide-card .card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:16px;
}
.card-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
}
.card-icon svg{width:22px;height:22px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:600;
  line-height:1.4;
  white-space:nowrap;
}
.badge-primary{background:var(--primary-soft);color:var(--primary-active);}
.badge-success{background:var(--success-soft);color:var(--success);}
.badge-accent{background:var(--accent-soft);color:#B45F14;}
.badge-neutral{background:var(--neutral-soft);color:var(--neutral);}
.guide-card h3{font-size:19px;font-weight:600;line-height:1.4;}
.guide-card p{margin-top:12px;font-size:15px;color:var(--sub);line-height:1.8;}
.guide-card .card-foot{margin-top:auto;padding-top:18px;}
@media (max-width:767.98px){
  .card-grid{grid-template-columns:1fr;gap:16px;}
  .guide-card{padding:20px;}
}

/* ---------- 表格 ---------- */
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--shadow-s);
}
.data-table{
  width:100%;
  min-width:720px;
  border-collapse:separate;
  border-spacing:0;
  font-size:14.5px;
}
.data-table thead th{
  background:var(--primary-soft);
  color:var(--primary-active);
  font-weight:600;
  font-size:14px;
  text-align:left;
  padding:15px 18px;
  border-bottom:1px solid rgba(30,99,176,.14);
  white-space:nowrap;
}
.data-table tbody td{
  padding:15px 18px;
  border-bottom:1px solid var(--divider);
  color:var(--sub);
  vertical-align:middle;
}
.data-table tbody td:first-child{color:var(--ink);font-weight:600;white-space:nowrap;}
.data-table tbody tr:nth-child(even){background:#F8FAFD;}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table tbody tr:hover{background:rgba(30,99,176,.05);}
.table-note{
  margin-top:16px;
  font-size:13.5px;
  color:var(--muted);
}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
  align-items:start;
}
.faq-intro h2{font-size:28px;font-weight:700;line-height:1.3;}
.faq-intro p{margin-top:14px;color:var(--sub);font-size:16px;}
.faq-intro .btn{margin-top:22px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.faq-item.open{border-color:rgba(30,99,176,.35);box-shadow:var(--shadow-s);background:#FBFCFE;}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:20px 22px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  line-height:1.5;
}
.faq-q:hover{color:var(--primary);}
.faq-sign{
  flex:0 0 auto;
  position:relative;
  width:26px;height:26px;
  border-radius:50%;
  border:1.5px solid rgba(30,99,176,.45);
  transition:background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.faq-sign::before,.faq-sign::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--primary);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:opacity .2s ease-out,background-color .2s ease-out;
}
.faq-sign::before{width:11px;height:1.6px;}
.faq-sign::after{width:1.6px;height:11px;}
.faq-item.open .faq-sign{background:var(--primary);border-color:var(--primary);}
.faq-item.open .faq-sign::before,.faq-item.open .faq-sign::after{background:#fff;}
.faq-item.open .faq-sign::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease-out;
}
.faq-a-inner{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--sub);
  line-height:1.85;
}
@media (max-width:991.98px){
  .faq-layout{grid-template-columns:1fr;gap:26px;}
  .faq-intro h2{font-size:23px;}
  .faq-q{font-size:16px;padding:18px;}
}

/* ---------- 表单 ---------- */
.contact-panel{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:44px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:40px;
  box-shadow:var(--shadow-s);
}
.contact-intro h2{font-size:27px;font-weight:700;line-height:1.32;}
.contact-intro p{margin-top:14px;color:var(--sub);font-size:16px;}
.contact-meta{margin-top:24px;display:grid;gap:12px;}
.contact-meta li{display:flex;gap:10px;font-size:15px;color:var(--sub);}
.contact-meta li svg{width:18px;height:18px;color:var(--primary);flex:0 0 auto;margin-top:4px;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:14px;font-weight:600;color:var(--ink);}
.form-control,.form-select{
  display:block;
  width:100%;
  min-height:48px;
  padding:10px 14px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#FBFCFE;
  color:var(--ink);
  font-size:15px;
  line-height:1.6;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
textarea.form-control{min-height:120px;resize:vertical;}
.form-control::placeholder{color:var(--muted);}
.form-control:focus,.form-select:focus{
  outline:none;
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(30,99,176,.14);
}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%237A8896' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px;}
.form-hint{font-size:13px;color:var(--muted);line-height:1.7;}
.form-error{font-size:13px;color:#B4453A;display:none;}
.form-field.has-error .form-control,.form-field.has-error .form-select{border-color:#D9A6A0;background:#FDF7F6;}
.form-field.has-error .form-error{display:block;}
@media (max-width:991.98px){
  .contact-panel{grid-template-columns:1fr;gap:28px;padding:24px;}
  .contact-intro h2{font-size:23px;}
}
@media (max-width:575.98px){
  .form-grid{grid-template-columns:1fr;}
  .form-actions .btn{width:100%;}
}

/* ---------- 底部 CTA 条 ---------- */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  background:var(--primary-soft);
  border-radius:20px;
  padding:28px 32px;
}
.cta-band h3{font-size:20px;font-weight:700;}
.cta-band p{margin-top:8px;font-size:15px;color:var(--sub);max-width:620px;}
@media (max-width:767.98px){
  .cta-band{padding:22px;flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0F2740;
  color:rgba(255,255,255,.86);
  padding:64px 0 28px;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;}
.footer-brand strong{font-size:17px;color:#fff;font-weight:700;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--accent);}
.footer-contact p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;margin-bottom:16px;}
.footer-form{display:flex;gap:10px;}
.footer-form .form-control{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.18);
  color:#fff;
  min-height:46px;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.5);}
.footer-form .form-control:focus{background:rgba(255,255,255,.14);border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,132,43,.2);}
.footer-form .btn{
  flex:0 0 auto;
  min-width:96px;
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.footer-form .btn:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff;transform:translateY(-2px);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.52);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .footer-about{max-width:none;}
}
@media (max-width:575.98px){
  .site-footer{padding:44px 0 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* ---------- 辅助 ---------- */
.visually-hidden{
  position:absolute !important;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
  }
}