/* roulang page: index */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1E4FD8;
  --brand-soft:#EAF1FF;
  --brand-soft-2:#F2F6FF;
  --cyan:#00B39F;
  --cyan-soft:#E6F7F4;
  --orange:#FF8A3D;
  --orange-soft:#FFF2E8;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#0F1F2E;
  --ink-2:#5B6B7C;
  --ink-3:#8496A6;
  --line:#E3EAF2;
  --ok:#1F9D6A;
  --err:#E5484D;
  --dark:#0F1F2E;
  --r-card:16px;
  --r-btn:12px;
  --r-input:12px;
  --shadow-1:0 10px 30px rgba(16,42,67,.08);
  --shadow-2:0 16px 40px rgba(16,42,67,.14);
  --sec:80px;
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC","Inter","Roboto",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px}
h1{font-size:40px;line-height:48px}
h2{font-size:28px;line-height:36px}
h3{font-size:20px;line-height:28px}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(47,107,255,.35);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:var(--sec) 0}
.section-sm{padding:56px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow.cyan{color:#0A7F72;background:var(--cyan-soft)}
.eyebrow.orange{color:#B85B15;background:var(--orange-soft)}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16px;margin:0}
.muted{color:var(--ink-2)}

/* ============ 按钮 ============ */
.btn{
  border-radius:var(--r-btn);font-weight:600;font-size:15px;
  padding:12px 22px;min-height:44px;display:inline-flex;align-items:center;
  justify-content:center;gap:8px;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.28)}
.btn-brand:hover,.btn-brand:focus{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,107,255,.34)}
.btn-brand:active{transform:translateY(0)}
.btn-outline-brand{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-outline-brand:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft-2)}
.btn-ghost{background:transparent;color:var(--brand);padding-left:0;padding-right:0;min-height:auto}
.btn-ghost:hover{color:var(--brand-dark);gap:12px}
.btn-soft{background:var(--brand-soft);color:var(--brand-dark)}
.btn-soft:hover{background:#DDE8FF;color:var(--brand-dark)}
.btn-lg{padding:15px 28px;font-size:16px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ============ 徽章 / 标签 ============ */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  font-size:12px;line-height:20px;font-weight:600;padding:4px 12px;
}
.badge-live{background:var(--orange-soft);color:#B85B15}
.badge-online{background:var(--cyan-soft);color:#0A7F72}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-neutral{background:#EEF3F8;color:var(--ink-2)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;display:inline-block}
.dot-pulse{animation:pulse 1.6s infinite}
@keyframes pulse{0%{opacity:1}50%{opacity:.35}100%{opacity:1}}
.tag-flow{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:9px 16px;font-size:14px;color:var(--ink-2);font-weight:500;
  transition:all .18s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--shadow-1);transform:translateY(-2px)}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid var(--line);
}
.site-header .navbar{padding:12px 0;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:17px;letter-spacing:-.3px}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--brand),#5B8CFF);
  color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:0 8px 18px rgba(47,107,255,.28);flex:0 0 auto;
}
.brand-text{white-space:nowrap}
.main-nav{gap:4px}
.main-nav .nav-link{
  color:var(--ink-2);font-size:15px;font-weight:500;padding:9px 14px;border-radius:10px;
  position:relative;
}
.main-nav .nav-link:hover{color:var(--brand);background:var(--brand-soft-2)}
.main-nav .nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.nav-side{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-toggle{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:10px 16px;font-size:14px;font-weight:600;color:var(--ink-2);
  display:inline-flex;align-items:center;gap:8px;min-height:44px;transition:all .18s ease;
}
.mega-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:380px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-2);
  padding:22px;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;font-weight:700;letter-spacing:.6px;color:var(--ink-3);text-transform:uppercase;margin-bottom:12px}
.mega-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.mega-links a{
  font-size:13px;font-weight:600;color:var(--brand-dark);background:var(--brand-soft);
  border-radius:999px;padding:6px 12px;
}
.mega-links a:hover{background:#DDE8FF}
.mega-post{display:block;padding:12px 0;border-top:1px solid var(--line)}
.mega-post strong{display:block;font-size:14px;color:var(--ink);font-weight:600;line-height:22px}
.mega-post span{font-size:12px;color:var(--ink-3)}
.mega-post:hover strong{color:var(--brand)}
.mega-card{
  margin-top:16px;padding:16px;border-radius:14px;background:var(--brand-soft-2);
  border:1px solid var(--line);display:flex;gap:12px;align-items:center;
}
.mega-card i{font-size:20px;color:var(--brand)}
.mega-card b{display:block;font-size:14px}
.mega-card small{color:var(--ink-2);font-size:12px}
.navbar-toggler{
  border:1px solid var(--line);border-radius:10px;padding:8px 12px;background:#fff;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(47,107,255,.18)}
.navbar-toggler i{color:var(--ink);font-size:16px}

/* ============ HERO ============ */
.hero{
  position:relative;padding:72px 0 80px;
  background:
    linear-gradient(180deg,rgba(247,250,252,.92),rgba(247,250,252,.98)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(47,107,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(47,107,255,.05) 1px,transparent 1px);
  background-size:64px 64px;mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 70%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero h1{font-size:40px;line-height:48px;margin-bottom:18px}
.hero .lead{font-size:17px;line-height:30px;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;padding-top:22px;border-top:1px solid var(--line)}
.hero-fact b{display:block;font-size:22px;line-height:30px;color:var(--ink)}
.hero-fact span{font-size:13px;color:var(--ink-2)}
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:14px;position:relative;
}
.media-cover{position:relative;border-radius:12px;overflow:hidden}
.media-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.media-cover .badge-pill{position:absolute;top:12px;left:12px;background:rgba(255,138,61,.94);color:#fff}
.media-cover .dur{position:absolute;bottom:12px;right:12px;background:rgba(15,31,46,.72);color:#fff;font-size:12px;padding:4px 10px;border-radius:999px}
.media-body{padding:16px 6px 6px}
.media-body h3{font-size:18px;line-height:26px;margin-bottom:8px}
.media-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--ink-2);margin-bottom:14px}
.mini-countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.mini-countdown div{background:var(--brand-soft);border-radius:10px;text-align:center;padding:8px 4px}
.mini-countdown b{display:block;font-size:18px;line-height:22px;color:var(--brand-dark);font-variant-numeric:tabular-nums}
.mini-countdown span{font-size:11px;color:var(--ink-2)}

/* ============ 数据条 ============ */
.stat-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:26px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:-46px;position:relative;z-index:3;
}
.stat-strip .item{display:flex;gap:14px;align-items:flex-start}
.stat-strip .ico{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-size:17px;
}
.stat-strip .item:nth-child(2) .ico{background:var(--cyan-soft);color:#0A7F72}
.stat-strip .item:nth-child(3) .ico{background:var(--orange-soft);color:#B85B15}
.stat-strip .item:nth-child(4) .ico{background:#EEF3F8;color:var(--ink-2)}
.stat-strip b{display:block;font-size:16px;margin-bottom:4px}
.stat-strip p{margin:0;font-size:13px;line-height:22px;color:var(--ink-2)}

/* ============ 直播预告流 ============ */
.live-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:26px;align-items:start}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:26px;
}
.cover-card{overflow:hidden;padding:0}
.cover-card .cover-img{position:relative}
.cover-card .cover-img img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-card .cover-img .badge-pill{position:absolute;top:14px;left:14px;background:rgba(255,138,61,.94);color:#fff}
.cover-card .cover-img .time-chip{
  position:absolute;bottom:14px;left:14px;background:rgba(255,255,255,.94);
  border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;color:var(--ink);
}
.cover-card .cover-body{padding:22px}
.cover-card h3{font-size:20px;line-height:28px;margin-bottom:10px}
.cover-card .cover-body p{color:var(--ink-2);font-size:14px;line-height:24px;margin-bottom:0}

.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:6px 0 20px}
.countdown .block{background:var(--brand-soft);border-radius:12px;text-align:center;padding:14px 6px}
.countdown .num{
  display:block;font-size:28px;line-height:34px;font-weight:700;color:var(--brand-dark);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.countdown .lbl{font-size:12px;color:var(--ink-2)}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.panel-title h3{font-size:18px;line-height:26px}
.key-list li{display:flex;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line)}
.key-list li:last-child{border-bottom:0;padding-bottom:0}
.key-list .k-ico{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:var(--brand-soft-2);
  color:var(--brand);display:grid;place-items:center;font-size:14px;
}
.key-list b{display:block;font-size:15px;margin-bottom:2px}
.key-list p{margin:0;font-size:13px;line-height:21px;color:var(--ink-2)}
.subscribe-card{background:var(--brand-soft-2);border:1px solid var(--line);border-radius:14px;padding:20px;margin-top:8px}
.subscribe-card h4{font-size:16px;margin-bottom:6px}
.subscribe-card p{font-size:13px;color:var(--ink-2);margin-bottom:14px}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form .form-control{flex:1 1 200px;min-width:0}
.form-control{
  border-radius:var(--r-input);border:1px solid var(--line);min-height:44px;
  font-size:14px;padding:10px 14px;color:var(--ink);background:#fff;
}
.form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.16)}
.form-note{font-size:12px;color:var(--ink-3);margin:10px 0 0}
.form-msg{font-size:13px;margin-top:10px;display:none}
.form-msg.ok{display:block;color:var(--ok)}
.form-msg.err{display:block;color:var(--err)}
.entry-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.entry-card{
  display:flex;gap:12px;align-items:center;padding:16px;border:1px solid var(--line);
  border-radius:14px;background:#fff;transition:all .2s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D2E0F7}
.entry-card .play{
  width:40px;height:40px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;flex:0 0 auto;
}
.entry-card b{display:block;font-size:15px;color:var(--ink)}
.entry-card span{font-size:12px;color:var(--ink-2)}
.entry-card:hover b{color:var(--brand)}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);position:relative;transition:all .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-card .idx{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;margin-bottom:14px;
}
.step-card h3{font-size:17px;line-height:25px;margin-bottom:8px}
.step-card p{font-size:14px;line-height:24px;color:var(--ink-2);margin:0}

/* ============ 资讯列表（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-card .meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);margin-bottom:10px}
.news-card h3{font-size:17px;line-height:26px;margin-bottom:8px}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:14px;line-height:24px;color:var(--ink-2);margin-bottom:16px}
.news-card .more{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:8px}
.news-card .more:hover{gap:12px;color:var(--brand-dark)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--r-card);color:var(--ink-2);font-size:15px;
}
.empty-state i{display:block;font-size:26px;color:var(--ink-3);margin-bottom:12px}

/* ============ 分类快速入口 ============ */
.cat-flow{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:22px;align-items:stretch}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:all .2s ease;position:relative;overflow:hidden;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D2E0F7}
.cat-card .ico{
  width:46px;height:46px;border-radius:13px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:19px;margin-bottom:18px;
}
.cat-card.wide{grid-row:span 2;justify-content:space-between}
.cat-card.wide .ico{background:var(--cyan-soft);color:#0A7F72}
.cat-card.orange .ico{background:var(--orange-soft);color:#B85B15}
.cat-card h3{font-size:19px;line-height:28px;margin-bottom:10px}
.cat-card p{font-size:14px;line-height:24px;color:var(--ink-2);margin-bottom:18px}
.cat-card .go{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:8px}
.cat-card:hover .go{gap:12px}
.cat-card .cover{margin-top:18px;border-radius:12px;overflow:hidden}
.cat-card .cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 使用情况 ============ */
.trust{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.device-frame{
  border:1px solid var(--line);border-radius:24px;background:var(--bg);padding:18px;
  box-shadow:var(--shadow-1);
}
.device-frame .screen{border-radius:16px;overflow:hidden;background:#fff;border:1px solid var(--line)}
.device-frame .screen img{width:100%;aspect-ratio:4/3;object-fit:cover}
.trust-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.trust-list li:last-child{border-bottom:0}
.trust-list i{color:var(--cyan);font-size:17px;margin-top:4px}
.trust-list b{display:block;font-size:16px;margin-bottom:4px}
.trust-list p{margin:0;font-size:14px;line-height:24px;color:var(--ink-2)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:40px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-aside h2{margin-bottom:14px}
.faq-aside p{color:var(--ink-2);font-size:15px;line-height:26px}
.accordion-item{
  border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;padding:18px 22px;
  display:flex;justify-content:space-between;gap:16px;box-shadow:none;width:100%;text-align:left;
  border:0;transition:background .18s ease;min-height:44px;
}
.accordion-button::after{display:none}
.accordion-button i{color:var(--brand);transition:transform .2s ease}
.accordion-button:not(.collapsed){background:var(--brand-soft-2);color:var(--brand-dark)}
.accordion-button:not(.collapsed) i{transform:rotate(45deg)}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(47,107,255,.16)}
.accordion-body{padding:0 22px 20px;font-size:15px;line-height:26px;color:var(--ink-2)}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(135deg,#1E4FD8,#2F6BFF);border-radius:20px;color:#fff;
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 20px 44px rgba(47,107,255,.28);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;font-size:26px;line-height:34px;margin-bottom:10px;position:relative;z-index:2}
.cta-band p{color:rgba(255,255,255,.86);margin:0;font-size:15px;line-height:26px;position:relative;z-index:2;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2;flex:0 0 auto}
.btn-white{background:#fff;color:var(--brand-dark)}
.btn-white:hover{background:#F0F5FF;color:var(--brand-dark);transform:translateY(-2px)}
.btn-line{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-line:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.12)}

/* ============ FOOTER ============ */
.site-footer{background:var(--dark);color:#9FB2C4;padding:64px 0 0;margin-top:var(--sec)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.site-footer .brand{color:#fff;font-size:17px;margin-bottom:16px}
.site-footer .brand:hover{color:#fff}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600}
.site-footer p{font-size:14px;line-height:25px;color:#9FB2C4}
.site-footer a{color:#9FB2C4;font-size:14px;line-height:26px}
.site-footer a:hover{color:#6F9BFF}
.footer-links li{margin-bottom:10px}
.footer-sub .form-control{
  background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);color:#fff;min-height:44px;
}
.footer-sub .form-control::placeholder{color:#7D93A8}
.footer-sub .form-control:focus{background:rgba(255,255,255,.1);border-color:var(--brand);color:#fff}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7D93A8;
}
.footer-bottom a{font-size:13px}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sec:72px}
  h1{font-size:36px;line-height:44px}
  .hero h1{font-size:36px;line-height:44px}
  .cat-flow{grid-template-columns:1fr 1fr}
  .cat-card.wide{grid-row:auto;grid-column:span 2}
}
@media (max-width:991px){
  :root{--sec:64px}
  h1{font-size:32px;line-height:40px}
  h2{font-size:24px;line-height:32px}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:32px;line-height:40px}
  .live-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr;gap:20px}
  .steps{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr;gap:26px}
  .faq-aside{position:static}
  .trust-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px}
  .main-nav{margin:16px 0 8px}
  .main-nav .nav-link{padding:12px 14px;border-radius:10px}
  .nav-side{flex-direction:column;align-items:stretch;gap:12px;padding-bottom:16px}
  .mega-panel{
    position:static;opacity:1;visibility:visible;transform:none;width:100%;
    box-shadow:none;border-radius:14px;margin-top:10px;background:var(--brand-soft-2);
  }
  .mega-toggle{width:100%;justify-content:space-between}
  .nav-cta{width:100%}
}
@media (max-width:767px){
  :root{--sec:52px}
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:28px;line-height:36px}
  .hero h1{font-size:28px;line-height:36px}
  h2{font-size:22px;line-height:30px}
  h3{font-size:18px;line-height:26px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:20px}
  .stat-strip{grid-template-columns:1fr;padding:22px;margin-top:-28px}
  .steps{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cat-flow{grid-template-columns:1fr}
  .cat-card.wide{grid-column:auto}
  .entry-row{grid-template-columns:1fr}
  .countdown{grid-template-columns:repeat(2,1fr)}
  .countdown .num{font-size:24px;line-height:30px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .panel{padding:20px}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .brand-text{font-size:15px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:400px){
  .brand-text{font-size:13.5px}
}

/* roulang page: article */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1E52D6;
  --brand-soft:#EEF3FF;
  --cyan:#00B39F;
  --cyan-soft:#E6F7F4;
  --orange:#FF8A3D;
  --orange-soft:#FFF2E8;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#0F1F2E;
  --muted:#5B6B7C;
  --line:#E3EAF2;
  --ok:#1F9D6A;
  --err:#E5484D;
  --r-card:16px;
  --r-btn:12px;
  --sh-card:0 10px 30px rgba(16,42,67,.08);
  --sh-hover:0 16px 40px rgba(16,42,67,.14);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink);line-height:1.35}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:991px){.container{padding:0 20px}}
@media (max-width:575px){.container{padding:0 16px}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 4px 18px rgba(16,42,67,.05);
}
.site-header .navbar{padding:14px 0;align-items:center}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),#4C86FF);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 6px 16px rgba(47,107,255,.32);
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.brand:hover .brand-text{color:var(--brand)}
.main-nav{gap:4px}
.main-nav .nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:10px;
  transition:color .18s ease,background .18s ease;
}
.main-nav .nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.main-nav .nav-link.active{color:var(--brand);font-weight:600}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--brand);
}
.navbar-toggler{
  border:1px solid var(--line);border-radius:10px;padding:7px 11px;color:var(--brand);
  background:#fff;font-size:16px;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(47,107,255,.18)}
.nav-side{display:flex;align-items:center;gap:10px}
.mega-wrap{position:relative}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;border:0;
  padding:10px 16px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .18s ease,box-shadow .18s ease;
}
.mega-toggle:hover{background:var(--brand-dark);box-shadow:0 8px 20px rgba(47,107,255,.28)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);
  width:360px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  padding:18px;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  z-index:1050;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;margin:0 0 10px}
.mega-title + .mega-links{margin-bottom:16px}
.mega-links{display:flex;flex-wrap:wrap;gap:8px}
.mega-links a{
  display:inline-block;padding:6px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:500;
}
.mega-links a:hover{background:var(--brand);color:#fff}
.mega-post{
  display:block;padding:10px 12px;border-radius:12px;border:1px solid var(--line);
  margin-bottom:8px;background:#fff;
}
.mega-post:hover{border-color:#C9D9FF;background:var(--brand-soft)}
.mega-post strong{display:block;font-size:14px;color:var(--ink);font-weight:600;line-height:1.5}
.mega-post span{font-size:12px;color:var(--muted)}
.mega-card{
  display:flex;gap:12px;align-items:center;
  padding:14px;border-radius:14px;margin-top:6px;
  background:linear-gradient(120deg,#F3F7FF,#EAF1FF);
  border:1px solid #D6E2FF;
}
.mega-card i{font-size:20px;color:var(--brand)}
.mega-card strong{display:block;font-size:14px;color:var(--ink)}
.mega-card span{font-size:12px;color:var(--muted)}
@media (max-width:991px){
  .main-nav{margin-top:14px;gap:2px}
  .main-nav .nav-link{padding:11px 12px}
  .nav-side{display:none}
  .site-header .navbar-collapse{
    border-top:1px solid var(--line);margin-top:12px;padding-top:8px;
  }
}

/* ============ breadcrumb ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#B9C6D6}
.crumb .now{color:var(--ink);font-weight:500}

/* ============ article ============ */
.article-hero{
  background:
    linear-gradient(180deg,rgba(255,255,255,.94),rgba(255,255,255,.96)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  padding:48px 0 40px;
}
.article-hero .kicker{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.article-hero h1{
  font-size:40px;line-height:1.32;letter-spacing:-.2px;margin-bottom:18px;max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:14px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C4D0DD}
.article-meta i{color:var(--brand);margin-right:6px}
.tag{
  display:inline-block;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--cyan-soft);color:#04806F;
}
.tag.warn{background:var(--orange-soft);color:#B45511}

.section{padding:56px 0}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:32px;align-items:start}
.card-surface{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
}
.article-card{padding:40px 44px}
.article-body{font-size:16.5px;line-height:1.9;color:#17293A;max-width:820px}
.article-body h2{font-size:28px;line-height:1.4;margin:38px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.article-body h3{font-size:20px;line-height:1.5;margin:28px 0 12px}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;list-style:revert}
.article-body li{margin-bottom:8px}
.article-body img{border-radius:12px;margin:20px 0;box-shadow:0 8px 24px rgba(16,42,67,.10)}
.article-body a{color:var(--brand);font-weight:500;border-bottom:1px dashed rgba(47,107,255,.45)}
.article-body a:hover{color:var(--brand-dark);border-bottom-style:solid}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:#F2F7FF;
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:#22374C;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;display:block;overflow-x:auto;margin:20px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#F4F8FD;font-weight:600}
.article-body code{background:#F1F5FA;border-radius:6px;padding:2px 6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.empty-state{padding:56px 24px;text-align:center}
.empty-state i{font-size:34px;color:#B9C6D6}
.empty-state h2{font-size:22px;margin:16px 0 10px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* sidebar */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{padding:22px}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand);font-size:14px}
.side-list li{
  display:flex;gap:10px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list i{color:var(--cyan);margin-top:5px;font-size:12px}
.side-list strong{display:block;font-weight:600;color:var(--ink);font-size:14px;line-height:1.6}
.side-list span{color:var(--muted);font-size:12.5px}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:12px;background:var(--bg);
  border:1px solid var(--line);font-size:14px;color:var(--ink);font-weight:500;margin-bottom:10px;
}
.side-link:hover{background:var(--brand-soft);border-color:#CFDEFF;color:var(--brand-dark)}
.side-link i{color:var(--brand)}

/* related + cta */
.h2-block{font-size:28px;margin-bottom:8px}
.block-sub{color:var(--muted);font-size:15px;margin-bottom:26px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFDEFF}
.rel-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF3FA}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover}
.rel-card .thumb .chip{
  position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);
  color:var(--brand-dark);font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
}
.rel-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.rel-card h3{font-size:17px;line-height:1.55;margin-bottom:10px}
.rel-card:hover h3{color:var(--brand)}
.rel-card p{font-size:13.8px;color:var(--muted);line-height:1.7;flex:1}
.rel-card .more{font-size:13.5px;font-weight:600;color:var(--brand)}
.rel-card .more i{margin-left:6px;transition:transform .2s ease}
.rel-card:hover .more i{transform:translateX(3px)}

.cta-band{
  background:linear-gradient(120deg,#11305C,#1B4DA8 55%,#2F6BFF);
  border-radius:20px;padding:42px 44px;color:#fff;
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  box-shadow:0 20px 44px rgba(17,48,92,.24);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.82);margin:0;max-width:640px;font-size:15px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-brand{
  background:var(--brand);color:#fff;border:0;border-radius:var(--r-btn);
  padding:12px 22px;font-size:15px;font-weight:600;min-height:46px;
  display:inline-flex;align-items:center;gap:8px;
  transition:background .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-brand:hover{background:var(--brand-dark);color:#fff;box-shadow:0 10px 24px rgba(47,107,255,.3);transform:translateY(-1px)}
.btn-light-solid{
  background:#fff;color:var(--brand-dark);border:0;border-radius:var(--r-btn);
  padding:12px 22px;font-size:15px;font-weight:600;min-height:46px;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-light-solid:hover{background:#EEF3FF;color:var(--brand-dark)}
.btn-ghost{
  background:transparent;color:var(--brand);border:1px solid #C9D9FF;
  border-radius:var(--r-btn);padding:11px 20px;font-size:15px;font-weight:600;min-height:46px;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark)}

/* form */
.subscribe-card{padding:26px}
.subscribe-card h3{font-size:18px;margin-bottom:8px}
.subscribe-card p{color:var(--muted);font-size:14px;margin-bottom:16px}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form .form-control{
  flex:1 1 200px;min-height:46px;border-radius:var(--r-btn);
  border:1px solid var(--line);font-size:14.5px;padding:10px 14px;color:var(--ink);
}
.inline-form .form-control:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.16);outline:none;
}
.form-msg{font-size:13.5px;margin:10px 0 0;min-height:20px}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:var(--err)}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:#B9C8D8;margin-top:64px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:34px}
.site-footer .brand-text{color:#fff}
.site-footer p{font-size:14px;line-height:1.8;color:#9FB2C6;margin-top:16px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#A8BBCE;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-sub .inline-form .form-control{
  background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#fff;
}
.footer-sub .inline-form .form-control::placeholder{color:#8FA4B9}
.footer-sub .inline-form .form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.25)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8FA4B9;
}
@media (max-width:991px){
  .layout{grid-template-columns:1fr}
  .side-stack{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .article-hero h1{font-size:30px}
  .article-card{padding:30px 26px}
  .section{padding:44px 0}
}
@media (max-width:575px){
  .article-hero{padding:32px 0 28px}
  .article-hero h1{font-size:25px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-band h2{font-size:21px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .h2-block{font-size:22px}
}

/* roulang page: category1 */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1E52D8;
  --brand-soft:#EAF1FF;
  --cyan:#00B39F;
  --cyan-soft:#E4F7F4;
  --orange:#FF8A3D;
  --orange-soft:#FFF1E7;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#0F1F2E;
  --muted:#5B6B7C;
  --line:#E3EAF2;
  --ok:#1F9D6A;
  --err:#E5484D;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-sm:0 10px 30px rgba(16,42,67,.08);
  --shadow-md:0 16px 40px rgba(16,42,67,.14);
  --space-sec:80px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(47,107,255,.35);outline-offset:2px;border-radius:6px}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 14px rgba(16,42,67,.04);
}
.site-header .navbar{min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),#5A8BFF);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 6px 16px rgba(47,107,255,.28);
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand:hover .brand-text{color:var(--brand)}

.main-nav{gap:6px}
.main-nav .nav-link{
  position:relative;
  font-size:15px;font-weight:600;color:var(--muted);
  padding:10px 14px;border-radius:10px;
}
.main-nav .nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.main-nav .nav-link.active{color:var(--brand);background:var(--brand-soft)}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-side{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-toggle{
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:14px;font-weight:600;padding:10px 16px;border-radius:var(--radius-pill);
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;transition:all .18s ease;
}
.mega-toggle:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:380px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);padding:18px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;font-weight:700;letter-spacing:1px;color:var(--muted);text-transform:uppercase;margin:4px 0 10px}
.mega-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.mega-links a{
  font-size:13px;font-weight:600;color:var(--ink);background:var(--bg);
  border:1px solid var(--line);border-radius:var(--radius-pill);padding:6px 13px;
}
.mega-links a:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.mega-post{display:block;padding:10px 12px;border-radius:12px;margin-bottom:8px}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:22px}
.mega-post span{font-size:12px;color:var(--muted)}
.mega-post:hover{background:var(--bg)}
.mega-post:hover strong{color:var(--brand)}
.mega-card{
  display:flex;align-items:center;gap:12px;margin-top:12px;padding:14px;
  border-radius:12px;background:var(--brand-soft);color:var(--ink);
}
.mega-card i{color:var(--brand);font-size:18px}
.mega-card strong{display:block;font-size:14px}
.mega-card span{font-size:12px;color:var(--muted)}
.mega-card:hover{background:#DFE9FF}
.navbar-toggler{border:1px solid var(--line);border-radius:10px;padding:8px 12px;color:var(--ink)}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler i{font-size:16px}

/* ---------- buttons ---------- */
.btn{border-radius:var(--radius-btn);font-weight:600;font-size:15px;padding:12px 24px;line-height:1.2;transition:all .2s ease;border:1px solid transparent}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.26)}
.btn-brand:hover,.btn-brand:focus{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,107,255,.32)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.btn-cyan{background:var(--cyan);color:#fff}
.btn-cyan:hover{background:#009B8A;color:#fff}
.btn-link-arrow{background:none;border:none;color:var(--brand);font-weight:600;padding:0;display:inline-flex;align-items:center;gap:8px}
.btn-link-arrow:hover{color:var(--brand-dark);gap:12px}

/* ---------- badges / tags ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);background:var(--brand-soft);color:var(--brand)}
.tag-cyan{background:var(--cyan-soft);color:#00897A}
.tag-orange{background:var(--orange-soft);color:#D9661F}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--muted)}

/* ---------- section ---------- */
.section{padding:var(--space-sec) 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:28px;line-height:36px;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15px;line-height:26px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.6px;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(180deg,#F2F7FF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  padding:56px 0 64px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,107,255,.14),rgba(47,107,255,0) 70%);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.page-hero h1{font-size:40px;line-height:48px;margin-bottom:18px}
.page-hero h1 .hl{color:var(--brand)}
.hero-lead{font-size:16px;line-height:29px;color:var(--muted);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px}
.hero-meta div{font-size:13px;color:var(--muted)}
.hero-meta strong{display:block;font-size:20px;color:var(--ink);font-weight:700}

.hero-media{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.hero-media .thumb{position:relative}
.hero-media .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.live-badge{
  position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;gap:7px;
  background:rgba(15,31,46,.82);color:#fff;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:var(--radius-pill);backdrop-filter:blur(4px);
}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--orange);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(1.25)}}
.hero-media .body{padding:18px 20px 20px}
.hero-media .body h3{font-size:17px;margin-bottom:8px}
.hero-media .body p{font-size:14px;color:var(--muted);line-height:24px;margin-bottom:14px}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.countdown .cell{background:var(--brand-soft);border-radius:12px;padding:10px 4px;text-align:center}
.countdown .cell b{display:block;font-size:22px;line-height:26px;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:1px}
.countdown .cell span{font-size:11px;color:var(--muted)}

/* ---------- layout: sticky index + list ---------- */
.split{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start}
.sticky-nav{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:20px;
}
.sticky-nav h3{font-size:15px;margin-bottom:14px}
.sticky-nav ol{counter-reset:step;margin:0;padding:0;list-style:none}
.sticky-nav li{counter-increment:step;margin-bottom:6px}
.sticky-nav li a{
  display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:12px;
  color:var(--muted);font-size:14px;font-weight:600;line-height:22px;
}
.sticky-nav li a::before{
  content:"0" counter(step);
  font-size:12px;font-weight:700;color:var(--brand);background:var(--brand-soft);
  border-radius:8px;padding:2px 7px;flex:0 0 auto;margin-top:2px;
}
.sticky-nav li a:hover{background:var(--bg);color:var(--brand)}
.sticky-nav .aside-tip{
  margin-top:18px;padding:14px;border-radius:12px;background:var(--bg);
  font-size:13px;line-height:22px;color:var(--muted);
}
.sticky-nav .aside-tip strong{display:block;color:var(--ink);font-size:14px;margin-bottom:4px}

.step-list{display:flex;flex-direction:column;gap:20px}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:26px 26px 24px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.step-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:14px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.step-card h3{font-size:20px;line-height:28px}
.step-card p{color:var(--muted);font-size:15px;line-height:27px;margin-bottom:14px}
.tick-list{display:flex;flex-direction:column;gap:10px}
.tick-list li{display:flex;gap:10px;font-size:14px;line-height:24px;color:var(--ink)}
.tick-list i{color:var(--cyan);font-size:14px;margin-top:5px}

/* ---------- methods ---------- */
.methods{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.method{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:24px;transition:transform .2s ease,box-shadow .2s ease;
}
.method:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.method.wide{grid-column:span 5}
.method.narrow{grid-column:span 2}
.method i.ico{font-size:20px;color:var(--brand);background:var(--brand-soft);width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.method h3{font-size:18px;line-height:26px;margin-bottom:10px}
.method p{font-size:14px;line-height:25px;color:var(--muted);margin-bottom:14px}
.method .meta{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:6px}
.method .meta span{display:flex;align-items:center;gap:8px}
.method .meta i{color:var(--cyan);font-size:12px}

/* ---------- stats strip ---------- */
.stats{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:28px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stats .item b{display:block;font-size:26px;line-height:32px;color:var(--brand);font-variant-numeric:tabular-nums}
.stats .item span{font-size:13px;color:var(--muted);line-height:22px;display:block;margin-top:4px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.faq-left h2{font-size:28px;line-height:36px;margin-bottom:14px}
.faq-left p{color:var(--muted);font-size:15px;line-height:26px;margin-bottom:20px}
.faq-left .mini{
  margin-top:20px;background:var(--cyan-soft);border-radius:var(--radius-card);padding:18px;
  font-size:14px;line-height:24px;color:#046B5F;
}
.faq-left .mini strong{display:block;margin-bottom:6px;color:#04554C}
.accordion-item{
  background:#fff;border:1px solid var(--line) !important;border-radius:14px !important;
  margin-bottom:12px;overflow:hidden;box-shadow:0 6px 18px rgba(16,42,67,.05);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 20px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand)}
.accordion-button::after{
  background-image:none;
  content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  width:26px;height:26px;border-radius:8px;background:var(--bg);color:var(--muted);
  display:flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"\f068";background:var(--brand);color:#fff;transform:none}
.accordion-body{padding:0 20px 20px;font-size:14px;line-height:26px;color:var(--muted)}

/* ---------- related cards ---------- */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.rcard img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rcard .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard h3{font-size:17px;line-height:25px}
.rcard p{font-size:14px;line-height:24px;color:var(--muted);flex:1}
.rcard .go{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:8px}
.rcard:hover .go{gap:12px}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(120deg,#1E52D8,#2F6BFF 60%,#4C82FF);
  border-radius:22px;padding:44px 48px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:0 20px 50px rgba(47,107,255,.28);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cta-band h2{color:#fff;font-size:26px;line-height:34px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;line-height:26px;max-width:640px}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
.cta-band .btn-white{background:#fff;color:var(--brand)}
.cta-band .btn-white:hover{background:#F1F5FF;color:var(--brand-dark)}
.cta-band .btn-outline-light2{background:transparent;border:1px solid rgba(255,255,255,.6);color:#fff}
.cta-band .btn-outline-light2:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#B9C6D4;padding:60px 0 28px;margin-top:0}
.site-footer .brand-text{color:#fff}
.site-footer .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.10)}
.site-footer p{font-size:14px;line-height:25px;color:#93A5B8;margin-top:16px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#B9C6D4;font-size:14px}
.footer-links a:hover{color:#7FA5FF}
.footer-sub .inline-form{display:flex;gap:10px}
.footer-sub .form-control{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);color:#fff;
  border-radius:var(--radius-btn);height:46px;font-size:14px;
}
.footer-sub .form-control::placeholder{color:#8296AB}
.footer-sub .form-control:focus{background:rgba(255,255,255,.1);border-color:#7FA5FF;box-shadow:0 0 0 3px rgba(127,165,255,.22);color:#fff}
.form-msg{font-size:13px;margin-top:10px;min-height:18px}
.form-msg.ok{color:#5FD3A6}
.form-msg.err{color:#FF9A9D}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding-top:22px;font-size:13px;color:#8296AB}

@media (max-width:1199px){
  .page-hero h1{font-size:34px;line-height:42px}
  .hero-grid{gap:36px}
  .method.narrow{grid-column:span 12}
  .method.wide{grid-column:span 6}
}
@media (max-width:991px){
  :root{--space-sec:64px}
  .container{padding-left:20px;padding-right:20px}
  .main-nav{margin:14px 0 4px}
  .main-nav .nav-link{padding:12px 14px}
  .main-nav .nav-link.active::after{display:none}
  .nav-side{flex-direction:column;align-items:stretch;gap:10px;padding-bottom:14px}
  .mega-toggle{width:100%;justify-content:space-between}
  .mega-panel{position:static;width:100%;opacity:1;visibility:visible;transform:none;display:none;box-shadow:none;margin-top:10px}
  .mega-wrap.open .mega-panel{display:block}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr}
  .sticky-nav{position:static}
  .sticky-nav ol{display:flex;flex-wrap:wrap;gap:8px}
  .sticky-nav li{margin:0}
  .sticky-nav li a{padding:8px 12px;background:var(--bg)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .related{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .site-footer .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .method.wide{grid-column:span 12}
}
@media (max-width:767px){
  .page-hero{padding:40px 0 48px}
  .page-hero h1{font-size:28px;line-height:36px}
  .section-head h2,.faq-left h2{font-size:22px;line-height:30px}
  .step-card{padding:20px}
  .step-card h3{font-size:18px;line-height:26px}
  .countdown{gap:8px}
  .countdown .cell b{font-size:19px}
  .related{grid-template-columns:1fr}
  .cta-band{padding:30px 24px;border-radius:18px}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{flex:1 1 100%;text-align:center}
  .btn{padding:13px 20px}
}
@media (max-width:575px){
  :root{--space-sec:48px}
  .container{padding-left:16px;padding-right:16px}
  .brand-text{font-size:16px}
  .stats{grid-template-columns:1fr}
  .site-footer .footer-grid{grid-template-columns:1fr}
  .footer-sub .inline-form{flex-direction:column}
  .footer-sub .inline-form .btn{width:100%}
  .footer-bottom{flex-direction:column}
  .hero-actions .btn{width:100%;text-align:center}
}

/* roulang page: category2 */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1E4FD8;
  --brand-soft:#EAF1FF;
  --brand-soft2:#F2F6FF;
  --teal:#00B39F;
  --teal-soft:#E6F8F5;
  --orange:#FF8A3D;
  --orange-soft:#FFF2E8;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --ink:#0F1F2E;
  --muted:#5B6B7C;
  --line:#E3EAF2;
  --success:#1F9D6A;
  --error:#E5484D;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-card:0 10px 30px rgba(16,42,67,.08);
  --sh-hover:0 16px 40px rgba(16,42,67,.14);
  --sect:80px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",Inter,Roboto,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-dark)}
button,input,select{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:.2px}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(47,107,255,.35);outline-offset:2px;border-radius:8px}

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

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-btn);font-weight:600;font-size:15px;border:1px solid transparent;transition:all .18s ease;cursor:pointer;line-height:1}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 8px 20px rgba(47,107,255,.24)}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,107,255,.3)}
.btn-outline{background:#fff;color:var(--brand);border-color:#C9D9FF}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff}
.btn-sm{height:42px;padding:0 16px;font-size:14px}
.btn:disabled,.btn.disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{background:none;border:none;color:var(--brand);font-weight:600;padding:0;height:auto;display:inline-flex;gap:6px;align-items:center}
.btn-text:hover{color:var(--brand-dark);gap:10px}

/* ============ 标签 / 徽章 ============ */
.tag{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;background:var(--brand-soft);color:var(--brand)}
.tag-teal{background:var(--teal-soft);color:#018B7C}
.tag-orange{background:var(--orange-soft);color:#D96A1F}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--muted)}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);display:inline-block;box-shadow:0 0 0 0 rgba(0,179,159,.5);animation:pulse 2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(0,179,159,.45)}
  70%{box-shadow:0 0 0 8px rgba(0,179,159,0)}
  100%{box-shadow:0 0 0 0 rgba(0,179,159,0)}
}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(16,42,67,.045)}
.site-header .navbar{padding:14px 0;flex-wrap:wrap;align-items:center}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#2F6BFF 0%,#00B39F 100%);color:#fff;display:grid;place-items:center;font-size:16px;flex:0 0 auto}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand:hover .brand-text{color:var(--brand)}

.main-nav{align-items:center;gap:4px;margin:0}
.main-nav .nav-link{position:relative;padding:10px 14px;border-radius:10px;font-size:15px;font-weight:600;color:#36485C;transition:all .18s ease}
.main-nav .nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.main-nav .nav-link.active{color:var(--brand);background:var(--brand-soft2)}
.main-nav .nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--brand)}

.navbar-toggler{border:1px solid var(--line);border-radius:10px;padding:8px 12px;color:var(--ink);background:#fff}
.navbar-toggler:focus{box-shadow:none;outline:3px solid rgba(47,107,255,.28)}
.navbar-toggler i{font-size:17px}

.nav-side{display:flex;align-items:center;gap:12px;position:relative}
.mega-wrap{position:relative}
.mega-toggle{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:#36485C;font-size:14px;font-weight:600;cursor:pointer;transition:all .18s ease}
.mega-toggle:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft2)}
.mega-toggle i{font-size:12px;transition:transform .18s ease}
.mega-wrap.open .mega-toggle i{transform:rotate(180deg)}

.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:368px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-hover);padding:18px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  z-index:1050;
}
.mega-wrap:hover .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:1px;margin-bottom:10px}
.mega-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.mega-links a{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-soft2);color:#36485C;font-size:13px;font-weight:600}
.mega-links a:hover{background:var(--brand);color:#fff}
.mega-post{display:block;padding:10px 12px;border-radius:12px;transition:background .18s ease}
.mega-post:hover{background:var(--brand-soft2)}
.mega-post strong{display:block;font-size:14px;color:var(--ink);font-weight:600;line-height:1.5}
.mega-post span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.mega-card{display:flex;align-items:center;gap:12px;margin-top:14px;padding:14px;border-radius:14px;background:linear-gradient(120deg,#EAF1FF 0%,#E6F8F5 100%);color:var(--ink)}
.mega-card i{width:38px;height:38px;border-radius:11px;background:#fff;color:var(--brand);display:grid;place-items:center;font-size:15px;flex:0 0 auto}
.mega-card strong{display:block;font-size:14px;font-weight:700}
.mega-card em{display:block;font-style:normal;font-size:12px;color:var(--muted)}
.mega-card:hover{color:var(--brand-dark);transform:translateY(-1px)}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:18px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:#B9C6D4}

/* ============ 通用板块 ============ */
.section{padding:var(--sect) 0}
.section-sm{padding:56px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:28px;line-height:1.36;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.8}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px}

/* ============ Hero ============ */
.hero{
  padding:64px 0 72px;
  background:linear-gradient(115deg,rgba(255,255,255,.97) 0%,rgba(247,250,252,.93) 52%,rgba(234,241,255,.88) 100%),
  url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero h1{font-size:40px;line-height:1.28;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:16.5px;line-height:1.85;color:#40556B;margin-bottom:24px;max-width:560px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.hero-note{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted)}
.hero-note i{color:var(--teal)}

/* 手机示意框 */
.phone-card{position:relative;max-width:390px;margin-left:auto}
.phone-frame{
  position:relative;border-radius:30px;padding:12px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-hover);
}
.phone-screen{position:relative;border-radius:20px;overflow:hidden;background:#0F1F2E}
.phone-screen img{width:100%;aspect-ratio:9/15;object-fit:cover;opacity:.92}
.phone-ui{position:absolute;left:0;right:0;bottom:0;padding:16px;background:linear-gradient(180deg,rgba(15,31,46,0) 0%,rgba(15,31,46,.86) 58%,rgba(15,31,46,.96) 100%);color:#fff}
.phone-ui strong{display:block;font-size:15px;font-weight:700;margin-bottom:4px;color:#fff}
.phone-ui span{font-size:12.5px;color:#C7D6E5}
.phone-ui .tag{margin-bottom:10px}
.phone-badge{position:absolute;top:20px;left:20px;z-index:2}
.countdown-mini{position:absolute;bottom:-26px;left:-14px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-card);padding:12px 14px;display:flex;gap:10px}
.countdown-mini .cd-cell{text-align:center;min-width:44px}
.countdown-mini .cd-num{font-size:19px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.countdown-mini .cd-lab{font-size:11px;color:var(--muted)}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step-num{width:38px;height:38px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:16px}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--muted);line-height:1.78}
.step-line{position:absolute;top:45px;right:-14px;width:20px;height:2px;background:#D8E3F0}
.steps .step-card:last-child .step-line{display:none}

/* ============ 设备与说明 ============ */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center}
.device-shot{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card);background:#fff}
.device-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.device-shot figcaption{font-size:13px;color:var(--muted);padding:14px 18px;border-top:1px solid var(--line)}
.feature-list{display:grid;gap:14px}
.feature-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.feature-item:hover{border-color:#C9D9FF;box-shadow:var(--sh-card);transform:translateY(-2px)}
.feature-ico{width:40px;height:40px;border-radius:12px;background:var(--teal-soft);color:#018B7C;display:grid;place-items:center;font-size:15px;flex:0 0 auto}
.feature-item h3{font-size:16.5px;margin-bottom:6px}
.feature-item p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.media-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.media-card .thumb{position:relative;overflow:hidden}
.media-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.media-card:hover .thumb img{transform:scale(1.04)}
.media-card .thumb .tag{position:absolute;left:14px;top:14px}
.media-card .body{padding:22px;display:flex;flex-direction:column;flex:1}
.media-card h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.media-card p{font-size:14.5px;color:var(--muted);line-height:1.78;margin-bottom:16px}
.media-card .body .btn-text{margin-top:auto}

/* ============ 指标条 ============ */
.metrics{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.metric{padding:30px 26px;border-right:1px solid var(--line)}
.metric:last-child{border-right:none}
.metric .num{font-size:30px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.metric .num small{font-size:15px;font-weight:600;margin-left:2px}
.metric .lab{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand) 0%,#D8E3F0 100%)}
.tl-item{position:relative;padding:0 0 26px 8px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-27px;top:8px;width:10px;height:10px;border-radius:50%;background:#fff;border:2px solid var(--brand)}
.tl-item .tl-time{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;margin-bottom:4px}
.tl-item h3{font-size:16px;margin-bottom:6px}
.tl-item p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.faq-aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-card);position:sticky;top:100px}
.faq-aside h3{font-size:19px;margin-bottom:12px}
.faq-aside p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:18px}
.faq-aside ul{display:grid;gap:10px;margin-bottom:20px}
.faq-aside li{display:flex;gap:10px;font-size:14px;color:#40556B;line-height:1.7}
.faq-aside li i{color:var(--teal);margin-top:4px}

.accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:0 4px 14px rgba(16,42,67,.04)}
.accordion-button{background:#fff!important;color:var(--ink);font-size:16.5px;font-weight:600;padding:20px 52px 20px 22px;box-shadow:none!important;border-radius:14px!important;line-height:1.6}
.accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-soft2)!important}
.accordion-button::after{display:none}
.accordion-button::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:17px;font-weight:600;line-height:1;transition:all .18s ease;
}
.accordion-button:not(.collapsed)::before{content:"−";background:var(--brand);color:#fff}
.accordion-body{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.85;background:#fff}

/* ============ CTA ============ */
.cta-band{
  border-radius:20px;padding:52px 48px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(15,31,46,.92) 0%,rgba(30,79,216,.86) 62%,rgba(0,179,159,.78) 100%),
  url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  box-shadow:var(--sh-hover);
}
.cta-band h2{color:#fff;font-size:28px;line-height:1.4;margin-bottom:12px;max-width:640px}
.cta-band p{color:#D7E3F2;font-size:15.5px;max-width:600px;margin-bottom:26px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 通用信息条 ============ */
.notice{display:flex;gap:14px;align-items:flex-start;background:var(--brand-soft2);border:1px solid #D8E3FF;border-radius:14px;padding:18px 20px;font-size:14.5px;color:#40556B;line-height:1.8}
.notice i{color:var(--brand);margin-top:4px}

/* ============ 页脚 ============ */
.site-footer{background:#0F1F2E;color:#C7D3DF;padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:40px}
.site-footer .brand-text{color:#fff}
.site-footer .brand:hover .brand-text{color:#8FB4FF}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.85;color:#9FB0C0}
.footer-links{display:grid;gap:11px}
.footer-links a{color:#C7D3DF;font-size:14px}
.footer-links a:hover{color:#8FB4FF}
.footer-sub p{font-size:13.5px;color:#9FB0C0}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form .form-control{flex:1 1 140px;height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14px}
.inline-form .form-control::placeholder{color:#7C8C9C}
.inline-form .form-control:focus{background:rgba(255,255,255,.14);border-color:var(--brand);color:#fff;box-shadow:0 0 0 3px rgba(47,107,255,.28)}
.inline-form .btn{height:46px;flex:0 0 auto}
.form-msg{font-size:13px;margin-top:10px;min-height:18px;color:#7FD1B6}
.form-msg.err{color:#FF9A9D}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:46px;padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8B9BAB}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero h1{font-size:36px}
  .hero-grid{gap:40px}
  .mega-panel{width:340px}
}

@media (max-width:991.98px){
  :root{--sect:64px}
  .container{padding-left:20px;padding-right:20px}
  .site-header .navbar{padding:12px 0}
  .navbar-collapse{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-card);margin-top:12px;padding:14px;
  }
  .main-nav{align-items:stretch;gap:2px;margin-bottom:8px}
  .main-nav .nav-link{padding:12px 14px;border-radius:10px}
  .main-nav .nav-link.active::after{display:none}
  .nav-side{flex-direction:column;align-items:stretch;gap:10px;padding:4px 14px 8px}
  .mega-toggle{justify-content:space-between;width:100%}
  .mega-panel{
    position:static;width:100%;margin-top:10px;opacity:1;visibility:visible;transform:none;
    box-shadow:none;display:none;
  }
  .mega-wrap:hover .mega-panel{display:none}
  .mega-wrap.open .mega-panel{display:block}
  .hero{padding:44px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-lead{max-width:none}
  .phone-card{margin:0 auto}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step-line{display:none}
  .split{grid-template-columns:1fr;gap:36px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{border-bottom:1px solid var(--line)}
  .metric:nth-child(2n){border-right:none}
  .metric:nth-last-child(-n+2){border-bottom:none}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{padding:40px 30px}
  .cta-band h2{font-size:24px}
}

@media (max-width:767.98px){
  :root{--sect:48px}
  .container{padding-left:16px;padding-right:16px}
  .section-sm{padding:40px 0}
  .brand-text{font-size:15.5px}
  .brand-mark{width:36px;height:36px;border-radius:10px}
  .hero{padding:34px 0 46px}
  .hero h1{font-size:28px;line-height:1.34}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:22px}
  .steps{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:none!important;border-bottom:1px solid var(--line)!important;padding:24px 22px}
  .metric:last-child{border-bottom:none!important}
  .accent-count{flex-wrap:wrap}
  .cta-band{padding:32px 22px;border-radius:16px}
  .cta-band h2{font-size:21px}
  .cta-actions .btn{width:100%}
  .accordion-button{font-size:15.5px;padding:16px 48px 16px 18px}
  .accordion-body{padding:0 18px 18px;font-size:14.5px}
  .countdown-mini{padding:10px 12px;left:0;bottom:-20px}
  .countdown-mini .cd-num{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media (max-width:575.98px){
  .hero h1{font-size:26px}
  .hero-points{gap:8px}
  .tag{font-size:11.5px;padding:0 10px}
  .inline-form{flex-direction:column}
  .inline-form .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1E52D6;
  --brand-soft:#EAF1FF;
  --cyan:#00B39F;
  --orange:#FF8A3D;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --text:#0F1F2E;
  --muted:#5B6B7C;
  --border:#E3EAF2;
  --success:#1F9D6A;
  --danger:#E5484D;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 10px 30px rgba(16,42,67,.08);
  --shadow-hover:0 16px 40px rgba(16,42,67,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",Inter,Roboto,-apple-system,system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease}
a:hover{color:var(--brand)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32}
p{margin:0 0 12px}
p:last-child{margin-bottom:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:3px solid rgba(47,107,255,.35);outline-offset:2px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 2px 12px rgba(16,42,67,.05)}
.site-header .navbar{min-height:72px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--text);text-decoration:none}
.brand:hover{color:var(--text)}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:linear-gradient(135deg,var(--brand),#5B8CFF);color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:0 6px 16px rgba(47,107,255,.28)}
.brand-text{white-space:nowrap;letter-spacing:.2px}
.navbar-toggler{border:1px solid var(--border);border-radius:12px;width:44px;height:44px;display:grid;place-items:center;color:var(--text);background:#fff}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(47,107,255,.2)}
.main-nav{margin:0 auto;gap:4px}
.main-nav .nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:9px 14px!important;border-radius:10px;transition:.18s}
.main-nav .nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.main-nav .nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.main-nav .nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand)}
.nav-side{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-toggle{display:inline-flex;align-items:center;gap:8px;background:var(--brand-soft);color:var(--brand);border:1px solid #D6E3FF;border-radius:12px;font-size:14px;font-weight:600;padding:10px 16px;min-height:44px;transition:.18s}
.mega-toggle:hover{background:#DFE9FF}
.mega-toggle i{transition:transform .18s ease}
.mega-wrap.open .mega-toggle i,.mega-wrap:hover .mega-toggle i{transform:rotate(180deg)}
.mega-panel{position:absolute;right:0;top:calc(100% + 14px);width:380px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-hover);padding:20px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:1050}
.mega-wrap:hover .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;margin:0 0 10px}
.mega-title:not(:first-child){margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}
.mega-links{display:flex;flex-wrap:wrap;gap:8px}
.mega-links a{font-size:13px;color:var(--muted);background:#F4F8FC;border:1px solid var(--border);border-radius:999px;padding:6px 13px}
.mega-links a:hover{color:var(--brand);background:var(--brand-soft);border-color:#D6E3FF}
.mega-post{display:block;padding:10px 12px;border-radius:12px;transition:.18s}
.mega-post:hover{background:#F4F8FC}
.mega-post strong{display:block;font-size:14px;color:var(--text);margin-bottom:2px}
.mega-post:hover strong{color:var(--brand)}
.mega-post span{font-size:12px;color:var(--muted)}
.mega-card{display:flex;flex-direction:column;gap:4px;margin-top:16px;padding:16px;border-radius:14px;background:linear-gradient(135deg,#2F6BFF,#1E52D6);color:#fff}
.mega-card i{font-size:18px;margin-bottom:4px}
.mega-card strong{font-size:14px}
.mega-card span{font-size:12px;color:rgba(255,255,255,.82)}
.mega-card:hover{color:#fff;box-shadow:0 12px 26px rgba(47,107,255,.32)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 68px;background:radial-gradient(1100px 420px at 82% -12%,rgba(47,107,255,.13),transparent 68%),linear-gradient(180deg,#F2F7FF 0%,var(--bg) 100%);overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,var(--border) 20%,var(--border) 80%,transparent)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border:1px solid #D6E3FF;border-radius:999px;padding:7px 15px;margin-bottom:18px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(0,179,159,.16)}
.hero h1{font-size:40px;line-height:1.28;letter-spacing:-.4px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:16px;line-height:1.85;color:var(--muted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;padding-top:22px;border-top:1px dashed var(--border)}
.fact-num{font-family:Inter,Roboto,monospace;font-size:24px;font-weight:700;color:var(--text);line-height:1.1}
.fact-lbl{font-size:13px;color:var(--muted);margin-top:4px}

.media-card{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hover)}
.media-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.live-badge{position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:6px;background:rgba(229,72,77,.95);color:#fff;font-size:12px;font-weight:600;border-radius:999px;padding:6px 12px;letter-spacing:.04em}
.live-badge .pulse{width:7px;height:7px;border-radius:50%;background:#fff;animation:pulse 1.4s infinite}
@keyframes pulse{0%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.75)}100%{opacity:1;transform:scale(1)}}
.media-body{padding:18px 20px 20px}
.media-body h3{font-size:18px;margin-bottom:8px}
.media-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted);margin-bottom:14px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;border-radius:999px;padding:4px 11px;line-height:1.6}
.tag-blue{background:var(--brand-soft);color:var(--brand)}
.tag-cyan{background:rgba(0,179,159,.12);color:#00897B}
.tag-orange{background:rgba(255,138,61,.14);color:#C9621C}
.countdown-mini{display:flex;gap:8px;align-items:center;background:#F4F8FC;border:1px solid var(--border);border-radius:14px;padding:12px 14px}
.countdown-mini .unit{font-family:Inter,Roboto,monospace;font-size:20px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.countdown-mini .cap{font-size:12px;color:var(--muted);margin-right:4px}
.countdown-mini .sep{color:#C3D2E2;font-weight:700}

/* ---------- Sections ---------- */
.section{padding:80px 0}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:28px;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--muted)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- Buttons ---------- */
.btn{border-radius:12px;font-weight:600;font-size:15px;padding:12px 22px;min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s ease;border:1px solid transparent}
.btn-brand{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.24)}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,107,255,.3)}
.btn-brand:active{transform:translateY(0)}
.btn-brand:disabled,.btn-brand.disabled{opacity:.55;box-shadow:none;transform:none}
.btn-outline-brand{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-outline-brand:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-light-soft{background:#fff;border-color:rgba(255,255,255,.6);color:var(--brand)}
.btn-light-soft:hover{background:#fff;color:var(--brand-dark)}
.btn-sm{padding:8px 16px;min-height:40px;font-size:14px}
.btn-link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px;padding:0;background:none;border:none}
.btn-link-arrow:hover{gap:10px;color:var(--brand-dark)}

/* ---------- Timeline ---------- */
.schedule{position:relative;display:grid;gap:22px}
.schedule::before{content:"";position:absolute;left:114px;top:14px;bottom:14px;width:2px;background:linear-gradient(180deg,#D6E3FF,#E3EAF2)}
.schedule-item{position:relative;display:grid;grid-template-columns:96px 1fr;gap:28px;align-items:start}
.schedule-item::before{content:"";position:absolute;left:110px;top:26px;width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px #EAF1FF;z-index:1}
.schedule-time{text-align:right;padding-top:14px}
.schedule-time .t{display:block;font-family:Inter,Roboto,monospace;font-size:22px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;line-height:1.2}
.schedule-time .d{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.schedule-body{display:grid;grid-template-columns:230px 1fr;gap:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}
.schedule-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.schedule-thumb{position:relative;border-radius:12px;overflow:hidden}
.schedule-thumb img{width:100%;height:100%;min-height:150px;object-fit:cover}
.schedule-thumb .onair{position:absolute;top:10px;left:10px;font-size:11px;font-weight:600;color:#fff;background:rgba(15,31,46,.78);border-radius:999px;padding:4px 10px;backdrop-filter:blur(4px)}
.schedule-info h3{font-size:18px;margin:10px 0 8px}
.schedule-info>p{font-size:14px;color:var(--muted);margin-bottom:12px}
.point-list{display:grid;gap:8px;margin-bottom:14px}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#3C4C5C}
.point-list li i{color:var(--cyan);font-size:13px;margin-top:5px;flex:0 0 auto}
.schedule-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding-top:12px;border-top:1px dashed var(--border)}
.schedule-foot .note{font-size:13px;color:var(--muted)}
.schedule-foot .note i{color:var(--orange);margin-right:4px}

/* ---------- Countdown & Subscribe ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:stretch}
.countdown-panel{background:linear-gradient(150deg,#F2F7FF 0%,#FFFFFF 70%);border:1px solid var(--border);border-radius:var(--radius-lg);padding:34px 32px;box-shadow:var(--shadow)}
.countdown-panel h3{font-size:22px;margin-bottom:8px}
.countdown-panel .sub{font-size:14px;color:var(--muted);margin-bottom:24px}
.countdown{display:flex;gap:12px}
.countdown-block{flex:1;background:#fff;border:1px solid #DCE7FF;border-radius:14px;padding:16px 6px;text-align:center;box-shadow:0 4px 14px rgba(47,107,255,.08)}
.countdown-block .num{font-family:Inter,Roboto,monospace;font-size:32px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1}
.countdown-block .lbl{font-size:12px;color:var(--muted);margin-top:8px;letter-spacing:.06em}
.countdown-tip{display:flex;gap:10px;align-items:flex-start;margin-top:22px;font-size:14px;color:var(--muted);background:#fff;border:1px dashed var(--border);border-radius:14px;padding:14px 16px}
.countdown-tip i{color:var(--orange);margin-top:4px}

.subscribe-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:34px 32px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.subscribe-card h3{font-size:22px;margin-bottom:8px}
.subscribe-card .sub{font-size:14px;color:var(--muted);margin-bottom:22px}
.field-label{font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px;display:block}
.form-control-custom{width:100%;height:50px;border-radius:12px;border:1px solid var(--border);background:#FBFDFF;padding:0 16px;font-size:15px;color:var(--text);transition:.18s}
.form-control-custom::placeholder{color:#9BABBB}
.form-control-custom:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(47,107,255,.18)}
.form-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.form-row .form-control-custom{flex:1 1 200px;width:auto}
.form-msg{font-size:13px;margin-top:12px;min-height:20px}
.form-msg.ok{color:var(--success)}
.form-msg.err{color:var(--danger)}
.subscribe-list{display:grid;gap:12px;margin-top:22px;padding-top:22px;border-top:1px dashed var(--border)}
.subscribe-list li{display:flex;gap:10px;font-size:14px;color:var(--muted)}
.subscribe-list li i{color:var(--brand);margin-top:5px;font-size:13px}

/* ---------- Highlight Cards ---------- */
.hl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.hl-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}
.hl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.hl-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:19px;margin-bottom:16px;background:var(--brand-soft);color:var(--brand)}
.hl-icon.cyan{background:rgba(0,179,159,.12);color:#00897B}
.hl-icon.orange{background:rgba(255,138,61,.14);color:#C9621C}
.hl-card h3{font-size:18px;margin-bottom:10px}
.hl-card p{font-size:14px;color:var(--muted)}

/* ---------- Topic Grid ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.topic-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 18px;text-align:center;box-shadow:0 6px 18px rgba(16,42,67,.05);transition:.2s ease}
.topic-card:hover{transform:translateY(-4px);border-color:#D6E3FF;box-shadow:var(--shadow-hover)}
.topic-card i{font-size:22px;color:var(--brand);margin-bottom:12px;display:block}
.topic-card strong{display:block;font-size:15px;margin-bottom:6px}
.topic-card span{font-size:13px;color:var(--muted);display:block;line-height:1.7}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 22px 24px;box-shadow:var(--shadow);transition:.2s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{position:absolute;top:-16px;left:22px;width:38px;height:38px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;font-family:Inter,Roboto,monospace;font-weight:700;font-size:15px;box-shadow:0 8px 18px rgba(47,107,255,.28)}
.step h3{font-size:17px;margin:14px 0 8px}
.step p{font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
.faq-aside{background:linear-gradient(160deg,#0F1F2E,#1B3552);border-radius:var(--radius-lg);padding:32px 28px;color:#fff;box-shadow:var(--shadow)}
.faq-aside h2{font-size:24px;color:#fff;margin-bottom:12px}
.faq-aside p{font-size:14px;color:#A9BCCE;margin-bottom:22px}
.faq-aside .aside-links{display:grid;gap:10px}
.faq-aside .aside-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:#DCE7F2;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px 16px;min-height:44px;transition:.18s}
.faq-aside .aside-links a:hover{background:rgba(47,107,255,.28);border-color:rgba(47,107,255,.5);color:#fff}
.faq .accordion-item{border:1px solid var(--border);border-radius:14px!important;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:0 6px 18px rgba(16,42,67,.05)}
.faq .accordion-button{font-size:16px;font-weight:600;color:var(--text);background:#fff;padding:18px 20px;box-shadow:none;line-height:1.6}
.faq .accordion-button:not(.collapsed){background:#F4F8FF;color:var(--brand)}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(47,107,255,.18);z-index:2}
.faq .accordion-button::after{background-image:none;content:"+";display:flex;align-items:center;justify-content:center;width:26px;height:26px;flex:0 0 26px;border-radius:8px;background:#EAF1FF;color:var(--brand);font-size:16px;font-weight:700;line-height:1;transform:none;transition:.2s ease;margin-left:14px}
.faq .accordion-button:not(.collapsed)::after{content:"−";background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq .accordion-body{font-size:14.5px;color:var(--muted);padding:4px 20px 20px;line-height:1.85}

/* ---------- CTA Band ---------- */
.cta-band{position:relative;border-radius:24px;overflow:hidden;padding:56px 52px;color:#fff;background-image:linear-gradient(115deg,rgba(15,31,46,.94),rgba(47,107,255,.78)),url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;box-shadow:var(--shadow-hover)}
.cta-band h2{font-size:30px;color:#fff;margin-bottom:14px;max-width:620px}
.cta-band p{font-size:15px;color:rgba(255,255,255,.86);max-width:640px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cta-badges span{font-size:12.5px;color:#E3EDFF;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:6px 14px}

/* ---------- Footer ---------- */
.site-footer{background:#0F1F2E;color:#C7D3E0;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr .9fr .9fr 1.4fr;gap:36px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer .brand:hover{color:#fff}
.site-footer p{font-size:14px;color:#94A7BA;line-height:1.85;max-width:340px}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#9FB1C4}
.footer-links a:hover{color:#fff}
.footer-sub .inline-form{display:flex;gap:10px;flex-wrap:wrap}
.footer-sub .form-control{height:46px;border-radius:12px;border:1px solid #26384B;background:#16283A;color:#fff;padding:0 14px;flex:1 1 150px;font-size:14px}
.footer-sub .form-control::placeholder{color:#7E90A4}
.footer-sub .form-control:focus{background:#16283A;color:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.25)}
.footer-sub .btn-brand{min-height:46px;padding:0 20px;box-shadow:none}
.footer-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid #26384B;margin-top:42px;padding-top:22px;font-size:13px;color:#7E90A4}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .hero h1{font-size:36px}
  .mega-panel{width:340px}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .site-header .navbar{min-height:64px}
  .navbar-collapse{background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:14px;margin-top:14px}
  .main-nav{gap:2px}
  .main-nav .nav-link{padding:12px 14px!important;font-size:15px}
  .main-nav .nav-link.active::after{display:none}
  .nav-side{flex-direction:column;align-items:stretch;margin-top:12px;border-top:1px solid var(--border);padding-top:14px}
  .mega-wrap{position:static}
  .mega-toggle{width:100%;justify-content:space-between}
  .mega-panel{position:static;width:100%;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:14px 0 0;display:none}
  .mega-wrap.open .mega-panel,.mega-wrap:hover .mega-panel{display:block}
  .hero{padding:56px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:32px}
  .section{padding:64px 0}
  .split{grid-template-columns:1fr}
  .hl-grid{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .site-footer p{max-width:none}
  .schedule::before{display:none}
  .schedule-item{grid-template-columns:1fr;gap:12px}
  .schedule-item::before{display:none}
  .schedule-time{text-align:left;padding-top:0;display:flex;align-items:baseline;gap:10px}
  .schedule-time .t{font-size:19px}
  .schedule-body{grid-template-columns:1fr}
  .cta-band{padding:44px 32px}
  .cta-band h2{font-size:26px}
}
@media (max-width:767px){
  .hero h1{font-size:28px;line-height:1.36}
  .section{padding:48px 0}
  .section-head h2{font-size:23px}
  .hl-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .countdown-panel,.subscribe-card{padding:26px 22px}
  .countdown-block .num{font-size:26px}
  .cta-band{padding:36px 24px;border-radius:18px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .brand-text{font-size:15px}
  .topic-grid{grid-template-columns:1fr}
  .countdown{gap:8px}
  .countdown-block{padding:12px 4px}
  .countdown-block .num{font-size:22px}
  .countdown-mini{flex-wrap:wrap}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1E4FD8;
  --brand-soft:#EAF1FF;
  --teal:#00B39F;
  --orange:#FF8A3D;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --text:#0F1F2E;
  --muted:#5B6B7C;
  --border:#E3EAF2;
  --success:#1F9D6A;
  --danger:#E5484D;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(16,42,67,.08);
  --shadow-hover:0 16px 40px rgba(16,42,67,.14);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;border:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.2px;}
h1{font-size:40px;line-height:1.2;}
h2{font-size:28px;line-height:1.3;}
h3{font-size:20px;line-height:1.4;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 14px rgba(16,42,67,.05);
}
.site-header .navbar{min-height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none!important;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 38px;
  background:linear-gradient(135deg,#2F6BFF,#5C8DFF);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 6px 16px rgba(47,107,255,.28);
}
.brand-text{font-weight:700;font-size:17px;color:var(--text);white-space:nowrap;}
.navbar-toggler{
  border:1px solid var(--border);border-radius:10px;
  padding:8px 12px;color:var(--text);background:#fff;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(47,107,255,.18);}
.navbar-collapse{justify-content:space-between;}
.main-nav{gap:4px;}
.main-nav .nav-link{
  color:#33465A;font-weight:500;font-size:15px;
  padding:9px 15px;border-radius:10px;
  transition:background-color .18s ease,color .18s ease;
}
.main-nav .nav-link:hover{background:var(--brand-soft);color:var(--brand);}
.main-nav .nav-link.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-side{display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-toggle{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);
  border-radius:12px;padding:9px 16px;
  color:var(--text);font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.mega-toggle:hover{border-color:#BFD3FF;color:var(--brand);box-shadow:0 6px 18px rgba(47,107,255,.12);}
.mega-toggle i{font-size:12px;transition:transform .2s ease;}
.mega-wrap.open .mega-toggle i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:380px;background:#fff;border:1px solid var(--border);
  border-radius:16px;box-shadow:0 22px 50px rgba(16,42,67,.16);
  padding:20px;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  z-index:1050;
}
.mega-wrap:hover .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:1px;margin-bottom:10px;}
.mega-title:not(:first-child){margin-top:18px;}
.mega-links{display:flex;flex-wrap:wrap;gap:8px;}
.mega-links a{
  display:inline-block;padding:6px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:500;
}
.mega-links a:hover{background:var(--brand);color:#fff;}
.mega-post{display:block;padding:10px 0;border-bottom:1px dashed var(--border);}
.mega-post strong{display:block;font-size:14px;color:var(--text);font-weight:600;}
.mega-post span{font-size:12px;color:var(--muted);}
.mega-post:hover strong{color:var(--brand);}
.mega-card{
  display:flex;align-items:center;gap:12px;margin-top:14px;
  padding:14px;border-radius:12px;background:#F2F7FF;border:1px solid #DCE8FF;
}
.mega-card i{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
}
.mega-card strong{display:block;font-size:14px;color:var(--text);}
.mega-card span{font-size:12px;color:var(--muted);}
.mega-card:hover{background:#E7F0FF;}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;font-weight:600;font-size:15px;
  border:1px solid var(--brand);border-radius:12px;
  padding:12px 22px;min-height:46px;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,107,255,.26);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand);font-weight:600;font-size:15px;
  border:1px solid #BFD3FF;border-radius:12px;
  padding:12px 22px;min-height:46px;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-light-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--brand);font-weight:600;font-size:15px;
  border:1px solid #fff;border-radius:12px;padding:12px 22px;min-height:46px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-light-solid:hover{color:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.18);}
.btn-outline-light-2{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:rgba(255,255,255,.08);color:#fff;font-weight:600;font-size:15px;
  border:1px solid rgba(255,255,255,.55);border-radius:12px;padding:12px 22px;min-height:46px;
  transition:background-color .18s ease,color .18s ease;
}
.btn-outline-light-2:hover{background:#fff;color:var(--brand);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand);}
.btn-text:hover{gap:10px;color:var(--brand-dark);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,107,255,.22);border-radius:10px;}

/* ---------- 板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:1.4px;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;margin:0;}

/* ---------- 内页首屏 ---------- */
.page-hero{position:relative;overflow:hidden;background:#0F1F2E;}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,31,46,.94) 0%,rgba(15,31,46,.72) 48%,rgba(47,107,255,.55) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:64px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;}
.crumb span.sep{opacity:.5;}
.page-hero h1{color:#fff;margin-bottom:16px;}
.page-hero .lede{color:rgba(255,255,255,.86);font-size:16px;max-width:640px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.hero-tags span{
  font-size:13px;color:#fff;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:6px 14px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-side{
  background:#fff;border-radius:var(--radius);padding:24px;
  box-shadow:0 24px 60px rgba(6,20,35,.34);
}
.hero-side h3{font-size:17px;margin-bottom:6px;}
.hero-side .sub{font-size:13px;color:var(--muted);margin-bottom:18px;}
.side-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed var(--border);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list i{color:var(--brand);font-size:14px;margin-top:4px;}
.side-list strong{display:block;font-size:14px;font-weight:600;color:var(--text);}
.side-list span{font-size:13px;color:var(--muted);}

/* ---------- 筛选标签 ---------- */
.filter-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.filter-tab{
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:9px 18px;font-size:14px;font-weight:500;color:#33465A;cursor:pointer;
  transition:all .18s ease;
}
.filter-tab:hover{border-color:#BFD3FF;color:var(--brand);}
.filter-tab.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;box-shadow:0 8px 20px rgba(47,107,255,.24);}

/* ---------- 回放列表 ---------- */
.replay-card{
  display:flex;gap:18px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:16px;height:100%;
  box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.replay-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D3E0F5;}
.replay-thumb{
  position:relative;flex:0 0 190px;width:190px;height:124px;
  border-radius:12px;overflow:hidden;background:#EDF2F8;
}
.replay-thumb img{width:100%;height:100%;object-fit:cover;}
.replay-thumb .play-dot{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,rgba(15,31,46,0) 40%,rgba(15,31,46,.55) 100%);
}
.replay-thumb .play-dot i{
  width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.92);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;
}
.replay-body{flex:1;min-width:0;display:flex;flex-direction:column;}
.replay-body h3{font-size:18px;margin-bottom:8px;}
.replay-card:hover .replay-body h3{color:var(--brand);}
.replay-body p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:12px;}
.replay-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--muted);margin-bottom:10px;}
.replay-meta i{color:var(--brand);margin-right:5px;font-size:12px;}
.replay-foot{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:auto;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  border-radius:999px;padding:5px 12px;
}
.tag-blue{background:var(--brand-soft);color:var(--brand);}
.tag-teal{background:#E4F7F4;color:#00806F;}
.tag-orange{background:#FFF1E6;color:#C25A12;}
.tag-grey{background:#EEF2F7;color:#4A5B6C;}

/* ---------- 帮助卡 ---------- */
.help-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;height:100%;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease;
}
.help-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.help-ico{
  width:46px;height:46px;border-radius:13px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.help-ico.teal{background:#E4F7F4;color:#00806F;}
.help-ico.orange{background:#FFF1E6;color:#C25A12;}
.help-card h3{font-size:18px;margin-bottom:8px;}
.help-card p{font-size:14px;color:var(--muted);margin:0;}

/* ---------- 步骤时间线 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.step{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:relative;box-shadow:var(--shadow);}
.step-num{
  width:36px;height:36px;border-radius:11px;background:var(--brand);color:#fff;
  font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--text);font-size:17px;font-weight:600;
  padding:20px 22px;box-shadow:none;border-radius:var(--radius);
}
.faq-accordion .accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand);}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(47,107,255,.18);}
.faq-accordion .accordion-button::after{
  content:"";width:12px;height:12px;margin-left:auto;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  background-image:none!important;transform:rotate(45deg);transition:transform .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-accordion .accordion-body{padding:6px 22px 22px;font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- 订阅 / CTA ---------- */
.subscribe-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);
}
.subscribe-card h3{font-size:20px;margin-bottom:8px;}
.subscribe-card .note{font-size:14px;color:var(--muted);margin-bottom:18px;}
.inline-form{display:flex;gap:12px;flex-wrap:wrap;}
.inline-form .form-control{
  flex:1;min-width:180px;min-height:46px;border-radius:12px;
  border:1px solid var(--border);padding:11px 16px;font-size:15px;color:var(--text);
  background:#fff;
}
.inline-form .form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.18);}
.inline-form .form-control::placeholder{color:#93A2B2;}
.form-msg{font-size:13px;margin:10px 0 0;min-height:20px;}
.form-msg.ok{color:var(--success);}
.form-msg.err{color:var(--danger);}

.cta-band{
  background:linear-gradient(120deg,#1B47C4 0%,#2F6BFF 55%,#00B39F 130%);
  border-radius:20px;padding:46px 44px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:0 24px 60px rgba(47,107,255,.26);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.88);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1F2E;color:#C6D2DE;padding:64px 0 26px;margin-top:0;}
.site-footer .brand-text{color:#fff;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.site-footer p{font-size:14px;color:#9FB0C0;line-height:1.8;margin:16px 0 0;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#C6D2DE;font-size:14px;}
.footer-links a:hover{color:#7FA6FF;}
.footer-sub .form-control{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;min-height:46px;border-radius:12px;
}
.footer-sub .form-control::placeholder{color:#93A6B8;}
.footer-sub .form-control:focus{background:rgba(255,255,255,.12);border-color:#7FA6FF;box-shadow:0 0 0 3px rgba(127,166,255,.22);color:#fff;}
.footer-sub .form-msg{color:#8FE3C9;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;font-size:13px;color:#8C9CAE;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  h1{font-size:36px;}
  .replay-thumb{flex:0 0 168px;width:168px;height:112px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-sub{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .site-header .navbar{min-height:66px;}
  .navbar-collapse{
    border-top:1px solid var(--border);margin-top:12px;padding-top:12px;
  }
  .main-nav{gap:2px;margin-bottom:12px!important;}
  .main-nav .nav-link{padding:11px 12px;}
  .nav-side{flex-direction:column;align-items:stretch;gap:10px;padding-bottom:14px;}
  .mega-wrap{width:100%;}
  .mega-toggle{width:100%;justify-content:space-between;}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border-radius:12px;margin-top:10px;display:none;
  }
  .mega-wrap:hover .mega-panel{display:none;}
  .mega-wrap.open .mega-panel{display:block;}
  h1{font-size:32px;}
  h2{font-size:24px;}
  .section{padding:64px 0;}
  .page-hero .container{padding-top:42px;padding-bottom:52px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:36px 28px;}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  h1{font-size:28px;line-height:1.28;}
  h2{font-size:22px;line-height:1.34;}
  h3{font-size:18px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .replay-card{flex-direction:column;gap:14px;}
  .replay-thumb{flex:none;width:100%;height:186px;}
  .cta-band{border-radius:16px;padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-light-solid,.cta-actions .btn-outline-light-2{width:100%;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-sub{grid-column:1 / -1;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  h1{font-size:26px;}
  .section{padding:48px 0;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .filter-tab{font-size:13px;padding:8px 14px;}
  .brand-text{font-size:15px;white-space:normal;line-height:1.3;}
  .subscribe-card{padding:22px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}