/* roulang page: index */
:root{
  --brand:#1F6F8B;
  --brand-deep:#123B57;
  --brand-hover:#1A5F78;
  --brand-soft:#E8F1F5;
  --accent:#E28A3D;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16232E;
  --muted:#5C6B78;
  --line:#E3E9EF;
  --ok:#2F9E6E;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(18,59,87,.06),0 8px 24px rgba(18,59,87,.07);
  --shadow-2:0 2px 4px rgba(18,59,87,.08),0 14px 32px rgba(18,59,87,.10);
  --shadow-3:0 16px 40px rgba(18,59,87,.14);
  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:64px; --s7:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:var(--brand-hover);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;cursor:pointer;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.4px;}
h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.2px;}
h3{font-size:22px;line-height:1.5;font-weight:600;}
h4{font-size:18px;line-height:1.55;font-weight:600;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:1px;
  color:var(--brand);
  margin-bottom:8px;
}
.section-title{color:var(--brand-deep);}
.section-desc{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
}
.link-more i{transition:transform .16s ease-out;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#CE7A2E;color:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 18px rgba(18,59,87,.06);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}
.logo-mark{
  display:inline-flex;
  align-items:center;
  background:var(--brand);
  color:#fff;
  font-size:17px;
  font-weight:700;
  letter-spacing:.5px;
  padding:7px 12px;
  border-radius:10px;
  line-height:1;
}
.logo-sub{
  font-size:13px;
  font-weight:600;
  color:var(--brand-deep);
  letter-spacing:2px;
  line-height:1;
  border-left:1px solid var(--line);
  padding-left:8px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:9px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  transition:background-color .16s ease-out,color .16s ease-out;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:40px;
  padding:0 14px;
  border-radius:9px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  font-weight:600;
  color:var(--brand-deep);
  transition:background-color .16s ease-out,border-color .16s ease-out;
}
.mega-trigger:hover{background:var(--brand-soft);border-color:#CFE0E8;}
.mega-trigger i{font-size:11px;transition:transform .18s ease-out;}
.mega-wrap:hover .mega-trigger i,
.mega-wrap:focus-within .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:780px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-3);
  padding:24px;
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:24px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--muted);
  margin-bottom:14px;
}
.mega-list li{margin-bottom:10px;}
.mega-list a{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink);
  transition:color .16s ease-out,transform .16s ease-out;
}
.mega-list a::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  flex-shrink:0;
  opacity:.6;
}
.mega-list a:hover{color:var(--brand);transform:translateX(2px);}
.mega-news li{border-bottom:1px dashed var(--line);padding-bottom:12px;margin-bottom:12px;}
.mega-news li:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.mega-news time{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;font-variant-numeric:tabular-nums;}
.mega-news a{font-size:14px;font-weight:500;color:var(--ink);line-height:1.5;display:block;}
.mega-news a:hover{color:var(--brand);}
.mega-card{
  background:var(--brand-soft);
  border-radius:12px;
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:12px;
  height:100%;
  justify-content:center;
}
.mega-card strong{font-size:15px;color:var(--brand-deep);line-height:1.5;}
.mega-card p{font-size:13px;color:var(--muted);line-height:1.6;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--brand-deep);
  border-radius:2px;
  transition:transform .18s ease-out,opacity .18s ease-out;
}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- hero ---------- */
.hero{
  background:linear-gradient(180deg,#F2F7FA 0%,var(--bg) 100%);
  padding:64px 0 56px;
  position:relative;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(31,111,139,.10),rgba(31,111,139,0));
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  padding:7px 14px;
  border-radius:999px;
  margin-bottom:20px;
}
.hero-eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--ok);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.hero h1{color:var(--brand-deep);margin-bottom:18px;}
.hero-sub{
  font-size:17px;
  color:var(--muted);
  line-height:1.75;
  max-width:540px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:13px;
  color:var(--muted);
}
.hero-stats span{display:inline-flex;align-items:center;gap:6px;}
.hero-stats .divider{width:1px;height:12px;background:var(--line);}
.hero-media{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-2);
  aspect-ratio:16/13;
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:16px;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(31,111,139,.30),rgba(18,59,87,.16) 60%,rgba(18,59,87,.42));
}
.hero-media-tag{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  background:rgba(255,255,255,.94);
  border-radius:12px;
  padding:12px 16px;
  display:flex;
  align-items:center;
  gap:12px;
  box-shadow:var(--shadow-1);
}
.hero-media-tag i{color:var(--brand);font-size:16px;}
.hero-media-tag strong{display:block;font-size:14px;color:var(--brand-deep);line-height:1.4;}
.hero-media-tag small{display:block;font-size:12px;color:var(--muted);}

/* ---------- live strip ---------- */
.live-strip{
  background:var(--brand-deep);
  color:#fff;
}
.live-strip-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:20px 0;
  flex-wrap:wrap;
}
.live-strip-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.badge-live{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:5px 12px;
  border-radius:999px;
  letter-spacing:.5px;
}
.badge-live .dot{
  width:6px;height:6px;border-radius:50%;
  background:#fff;
  animation:pulse 2s ease-in-out infinite;
}
.live-strip-title{font-size:16px;font-weight:600;color:#fff;}
.live-strip-title small{display:block;font-size:13px;color:rgba(255,255,255,.66);font-weight:400;margin-top:2px;}
.live-strip-right{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.countdown{display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;}
.cd-group{display:flex;flex-direction:column;align-items:center;}
.cd-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  height:44px;
  padding:0 8px;
  border-radius:10px;
  background:rgba(255,255,255,.10);
  color:var(--accent);
  font-size:22px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.cd-label{font-size:11px;color:rgba(255,255,255,.6);margin-top:5px;}
.cd-sep{color:rgba(255,255,255,.35);font-size:20px;font-weight:700;margin-bottom:16px;}

/* ---------- preview layout ---------- */
.preview-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .18s ease-out;
}
.preview-main:hover{box-shadow:var(--shadow-2);}
.preview-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--brand-soft);
}
.preview-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.preview-main:hover .preview-cover img{transform:scale(1.02);}
.badge-soon{
  position:absolute;
  top:16px;left:16px;
  background:#fff;
  border:1px solid var(--accent);
  color:var(--accent);
  font-size:12px;
  font-weight:700;
  padding:5px 12px;
  border-radius:999px;
}
.preview-body{padding:28px;}
.preview-body h3{color:var(--brand-deep);margin-bottom:12px;}
.preview-body .preview-lead{color:var(--muted);font-size:15px;margin-bottom:20px;}
.spot-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:24px;}
.spot-item{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--ink);
  line-height:1.6;
  background:var(--bg);
  border-radius:10px;
  padding:12px 14px;
}
.spot-num{
  flex-shrink:0;
  width:20px;height:20px;
  border-radius:5px;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:2px;
}
.preview-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.side-previews{display:flex;flex-direction:column;gap:16px;}
.mini-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.mini-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.mini-cover{aspect-ratio:4/3;overflow:hidden;background:var(--brand-soft);}
.mini-cover img{width:100%;height:100%;object-fit:cover;}
.mini-body{padding:18px 20px 20px;}
.mini-time{
  font-size:13px;
  color:var(--brand);
  font-weight:600;
  font-variant-numeric:tabular-nums;
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-bottom:8px;
}
.mini-body h4{color:var(--brand-deep);font-size:16px;line-height:1.5;margin-bottom:8px;}
.mini-link{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:6px;}
.mini-card:hover .mini-link{color:var(--brand);}
.mini-card:hover .mini-link i{transform:translateX(3px);}
.mini-link i{transition:transform .16s ease-out;}

/* ---------- remind form ---------- */
.remind-form{display:flex;gap:10px;flex-wrap:wrap;}
.remind-input{
  flex:1;
  min-width:200px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 14px;
  font-size:14px;
  color:var(--ink);
  background:#fff;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.remind-input::placeholder{color:#93A2AE;}
.remind-input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(31,111,139,.18);
}
.subscribed{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:999px;
  background:rgba(47,158,110,.12);
  color:var(--ok);
  font-size:14px;
  font-weight:600;
}

/* ---------- news ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  position:relative;
}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D5E3EB;}
.tag{
  display:inline-flex;
  align-self:flex-start;
  align-items:center;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  line-height:1.6;
}
.news-title{
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--ink);
  transition:color .16s ease-out;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand);}
.news-excerpt{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--muted);
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-variant-numeric:tabular-nums;
}
.news-meta i{color:var(--brand);transition:transform .16s ease-out;}
.news-card:hover .news-meta i{transform:translateX(4px);}
.empty-state{
  min-height:220px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  padding:40px 24px;
  text-align:center;
}
.empty-icon{
  width:56px;height:56px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
}
.empty-state p{color:var(--muted);font-size:15px;}

/* ---------- feature blocks ---------- */
.feature-layout{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start;}
.feature-aside{position:sticky;top:100px;}
.feature-aside h2{color:var(--brand-deep);margin-bottom:14px;}
.feature-aside p{color:var(--muted);font-size:15px;margin-bottom:20px;}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.feature-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.feature-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.feature-item:nth-child(even){margin-top:32px;}
.feature-item img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.feature-item-body{padding:22px;}
.feature-item-body h3{font-size:18px;color:var(--brand-deep);margin-bottom:8px;}
.feature-item-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.feature-item-body .tag{margin-bottom:12px;}

/* ---------- stats band ---------- */
.stats-band{background:var(--brand-soft);}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:48px 0;
}
.stat-item{text-align:center;}
.stat-num{
  font-size:34px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-num span{font-size:16px;font-weight:600;color:var(--brand);margin-left:2px;}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-accordion{background:transparent;border:0;margin:0;}
.faq-accordion .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.faq-accordion .accordion-item.is-active{
  border-color:#CFE0E8;
  box-shadow:var(--shadow-1);
}
.faq-accordion .accordion-title{
  padding:20px 56px 20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  border:0;
  line-height:1.6;
  background:transparent;
  position:relative;
}
.faq-accordion .accordion-title:hover{background:transparent;color:var(--brand);}
.faq-accordion .accordion-title::before{
  content:"\002b";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--brand);
  line-height:1;
  transition:transform .18s ease-out;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{
  transform:translateY(-50%) rotate(180deg);
  content:"\2212";
}
.faq-accordion .accordion-content{
  padding:0 24px 22px 24px;
  border:0;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  border-left:3px solid var(--brand);
  margin-left:24px;
  padding-left:18px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#E8F1F5 0%,#F1F7FA 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:56px 0;
  flex-wrap:wrap;
}
.cta-text h2{color:var(--brand-deep);margin-bottom:10px;}
.cta-text p{color:var(--muted);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.82);padding:64px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo-mark{background:#fff;color:var(--brand-deep);}
.footer-brand .logo-sub{color:#fff;border-left-color:rgba(255,255,255,.24);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-top:16px;max-width:300px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:1px;margin-bottom:18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-flex;align-items:center;gap:8px;transition:color .16s ease-out,transform .16s ease-out;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-sub p{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:14px;line-height:1.7;}
.footer-sub form{display:flex;gap:8px;}
.footer-sub input{
  flex:1;
  height:42px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);
  color:#fff;
  padding:0 14px;
  font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.42);}
.footer-sub input:focus{outline:none;border-color:rgba(255,255,255,.5);}
.footer-sub .btn{height:42px;padding:0 18px;font-size:14px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .main-nav{
    position:absolute;
    top:72px;left:0;right:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 12px 24px rgba(18,59,87,.10);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 16px 16px;
    margin:0;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{height:48px;padding:0 12px;font-size:15px;}
  .nav-toggle{display:flex;}
  .mega-wrap{display:none;}
  .header-inner{gap:16px;}
  .main-nav{order:4;}
  .hero{padding:48px 0 40px;}
  .hero-media{margin-top:32px;aspect-ratio:16/10;}
  .feature-layout{grid-template-columns:1fr;gap:28px;}
  .feature-aside{position:static;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);padding:36px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:44px 0;}
}
@media (max-width:767px){
  .hero h1{font-size:28px;}
  h2{font-size:24px;}
  .live-strip-inner{flex-direction:column;align-items:flex-start;gap:16px;}
  .live-strip-right{width:100%;justify-content:space-between;}
  .spot-list{grid-template-columns:1fr;}
  .side-previews{
    flex-direction:row;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    gap:16px;
    padding-bottom:8px;
    -webkit-overflow-scrolling:touch;
  }
  .side-previews::-webkit-scrollbar{display:none;}
  .mini-card{flex:0 0 78%;scroll-snap-align:start;}
  .preview-body{padding:20px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-item:nth-child(even){margin-top:0;}
  .faq-accordion .accordion-title{padding:16px 48px 16px 20px;font-size:15px;}
  .faq-accordion .accordion-content{padding:0 20px 18px 18px;margin-left:20px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .header-inner{height:64px;}
  .main-nav{top:64px;}
  .logo-mark{font-size:15px;padding:6px 10px;}
  .logo-sub{font-size:12px;letter-spacing:1px;}
  .btn{height:46px;padding:0 20px;}
  .btn-sm{height:38px;padding:0 14px;font-size:13px;}
  .news-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .stat-num{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-text h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .remind-form{flex-direction:column;}
  .remind-input{min-width:0;}
  .remind-form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .mini-card:hover,.news-card:hover,.feature-item:hover,.btn-primary:hover{transform:none;}
}

/* roulang page: article */
:root{
  --brand:#1F6F8B;
  --brand-hover:#1A5F78;
  --brand-deep:#123B57;
  --brand-soft:#E8F1F5;
  --accent:#E28A3D;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16232E;
  --muted:#5C6B78;
  --line:#E3E9EF;
  --ok:#2F9E6E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(18,59,87,.06), 0 8px 24px rgba(18,59,87,.07);
  --shadow-2:0 2px 4px rgba(18,59,87,.08), 0 14px 32px rgba(18,59,87,.10);
  --shadow-3:0 16px 40px rgba(18,59,87,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out,background-color .16s ease-out;}
a:hover{color:var(--brand-hover);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--brand-deep);font-weight:700;line-height:1.35;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;
  transition:background-color .16s ease-out,color .16s ease-out,box-shadow .16s ease-out,transform .16s ease-out,border-color .16s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-hover);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#cf7a2f;color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid transparent;
  transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(18,59,87,.06),0 6px 18px rgba(18,59,87,.06);}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;}
.logo-mark{
  background:var(--brand);color:#fff;font-size:17px;font-weight:700;letter-spacing:.5px;
  padding:7px 12px;border-radius:8px;
}
.logo-sub{
  font-size:12px;font-weight:600;color:var(--brand-deep);
  border:1px solid var(--line);background:var(--brand-soft);
  padding:3px 9px;border-radius:999px;letter-spacing:1px;
}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink);
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:9px;background:var(--surface);
  font-size:14px;font-weight:600;color:var(--brand-deep);cursor:pointer;
  transition:background-color .16s ease-out,border-color .16s ease-out,color .16s ease-out;
}
.mega-trigger:hover{background:var(--brand-soft);border-color:#cfe0e8;color:var(--brand);}
.mega-trigger i{font-size:11px;transition:transform .16s ease-out;}
.mega-wrap.is-open .mega-trigger i,
.mega-wrap:hover .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:800px;
  display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:24px;
  padding:24px;background:var(--surface);border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-3);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s ease-out;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:13px;letter-spacing:1px;color:var(--muted);font-weight:600;margin-bottom:12px;}
.mega-list li{margin-bottom:8px;}
.mega-list a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);}
.mega-list a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);flex-shrink:0;}
.mega-list a:hover{color:var(--brand);}
.mega-news li{margin-bottom:14px;}
.mega-news time{display:block;font-size:12px;color:var(--muted);margin-bottom:2px;}
.mega-news a{font-size:14px;color:var(--ink);line-height:1.5;display:block;}
.mega-news a:hover{color:var(--brand);}
.mega-card{background:var(--brand-soft);border-radius:12px;padding:20px;}
.mega-card strong{display:block;font-size:15px;color:var(--brand-deep);margin-bottom:8px;}
.mega-card p{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:16px;}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:44px;height:44px;padding:0 11px;background:var(--surface);
  border:1px solid var(--line);border-radius:9px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--brand-deep);border-radius:2px;transition:transform .16s ease-out,opacity .16s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--muted);padding:26px 0 0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#b9c6d0;}
.breadcrumb .current{color:var(--ink);}

/* ---------- 文章头部 ---------- */
.article-head{padding:20px 0 8px;border-bottom:1px solid var(--line);}
.article-head h1{font-size:32px;line-height:1.35;max-width:900px;letter-spacing:-.2px;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:18px 0 22px;font-size:13px;color:var(--muted);}
.tag-pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.post-meta .dot{color:#b9c6d0;}
.live-badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;
}
.live-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;padding:32px 0 80px;align-items:start;}
.article-main{min-width:0;}

/* ---------- 富文本正文 ---------- */
.prose{max-width:760px;font-size:17px;line-height:1.85;color:var(--ink);}
.prose > *:first-child{margin-top:0;}
.prose p{margin:0 0 20px;}
.prose h2{font-size:26px;line-height:1.4;font-weight:700;color:var(--brand-deep);margin:40px 0 16px;}
.prose h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--brand-deep);margin:28px 0 12px;padding-left:12px;border-left:3px solid var(--brand);}
.prose h4{font-size:17px;line-height:1.55;font-weight:600;color:var(--brand-deep);margin:24px 0 10px;}
.prose ul,.prose ol{margin:0 0 20px;padding-left:0;}
.prose ul > li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.85;}
.prose ul > li::before{content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--accent);}
.prose ol{counter-reset:pn;}
.prose ol > li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:pn;line-height:1.85;}
.prose ol > li::before{
  content:counter(pn);position:absolute;left:0;top:5px;width:20px;height:20px;line-height:20px;
  text-align:center;font-size:12px;font-weight:700;color:var(--brand);background:var(--brand-soft);border-radius:6px;
}
.prose blockquote{
  margin:24px 0;padding:20px 24px;background:var(--brand-soft);
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:var(--brand-deep);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{max-width:100%;height:auto;border-radius:var(--radius-img);margin:24px auto 8px;}
.prose figure{margin:24px 0;}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;line-height:1.6;}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--brand-hover);}
.prose strong{font-weight:700;color:var(--brand-deep);}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.prose th,.prose td{border:1px solid var(--line);padding:12px 16px;text-align:left;line-height:1.7;}
.prose th{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;}
.prose tr:nth-child(even) td{background:#fbfdfe;}
.prose hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 空状态 ---------- */
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.empty-state p{margin:0;color:var(--muted);font-size:15px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);}
.side-card h4{font-size:15px;margin-bottom:14px;letter-spacing:.5px;}
.side-links li + li{margin-top:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 12px;border-radius:8px;font-size:14px;color:var(--ink);
}
.side-links a:hover{background:var(--brand-soft);color:var(--brand);}
.side-links a i{font-size:11px;color:var(--muted);}
.side-links a:hover i{color:var(--brand);}
.side-entry{background:var(--brand-soft);border:1px solid #d6e6ee;border-radius:var(--radius-card);padding:24px;}
.side-entry h4{font-size:16px;margin-bottom:8px;}
.side-entry p{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:16px;}
.mini-card{display:flex;gap:12px;padding:10px;border-radius:10px;transition:background-color .16s ease-out;}
.mini-card:hover{background:var(--brand-soft);}
.mini-card img{width:88px;height:66px;object-fit:cover;border-radius:8px;flex-shrink:0;}
.mini-card .mini-body{min-width:0;}
.mini-card time{display:block;font-size:12px;color:var(--accent);font-weight:600;margin-bottom:2px;}
.mini-card span.title{display:block;font-size:13px;line-height:1.6;color:var(--ink);font-weight:500;}
.mini-card + .mini-card{margin-top:8px;}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{font-size:24px;}
.section-head .section-note{font-size:13px;color:var(--muted);}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;height:100%;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.rel-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.rel-card img{width:100%;height:160px;object-fit:cover;}
.rel-card .rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.rel-card .rel-title{font-size:16px;font-weight:600;color:var(--brand-deep);line-height:1.55;margin:12px 0 8px;}
.rel-card:hover .rel-title{color:var(--brand);}
.rel-card p{font-size:13px;line-height:1.7;color:var(--muted);margin:0 0 16px;}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:auto;}
.rel-foot i{transition:transform .16s ease-out;}
.rel-card:hover .rel-foot i{transform:translateX(4px);color:var(--brand);}

.back-link-row{padding-bottom:80px;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--brand);padding:10px 0;
}
.back-link:hover{color:var(--brand-hover);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.site-footer .logo-mark{background:#fff;color:var(--brand-deep);}
.site-footer .logo-sub{background:transparent;color:rgba(255,255,255,.78);border-color:rgba(255,255,255,.3);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:0;max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .16s ease-out,transform .16s ease-out;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-sub p{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:12px;line-height:1.7;}
.footer-sub form{display:flex;gap:8px;}
.footer-sub input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.5);}
.footer-sub input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.14);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:8px;font-size:13px;color:rgba(255,255,255,.6);
}
.subscribed-tip{font-size:13px;color:#fff;background:rgba(47,158,110,.9);border-radius:999px;padding:6px 14px;display:inline-block;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .mega-panel{width:720px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .header-inner{height:66px;gap:12px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:2px;background:var(--surface);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-3);padding:12px 20px 20px;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{height:48px;padding:0 14px;}
  .mega-wrap{position:static;}
  .mega-panel{
    position:absolute;top:100%;left:0;right:0;width:auto;grid-template-columns:1fr;
    max-height:70vh;overflow:auto;border-radius:0 0 16px 16px;
  }
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding:24px 0 56px;}
  .article-side{position:static;top:auto;}
  .article-head h1{font-size:27px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .prose{max-width:100%;}
  .prose table{display:block;overflow-x:auto;white-space:nowrap;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .header-actions .btn-primary{display:none;}
  .article-head h1{font-size:24px;}
  .post-meta{gap:8px;font-size:12px;}
  .article-layout{padding:20px 0 48px;}
  .prose{font-size:16px;line-height:1.85;}
  .prose h2{font-size:22px;margin-top:32px;}
  .prose h3{font-size:18px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px;}
  .site-footer{padding-top:48px;}
  .footer-sub form{flex-direction:column;}
  .footer-sub input{width:100%;}
  .footer-sub .btn{width:100%;}
  .side-card,.side-entry{padding:18px 16px;}
  .rel-card .rel-body{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .rel-card:hover,.btn-primary:hover,.footer-col a:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand:#1F6F8B;
  --brand-hover:#1A5F78;
  --brand-deep:#123B57;
  --accent:#E28A3D;
  --brand-soft:#E8F1F5;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16232E;
  --muted:#5C6B78;
  --line:#E3E9EF;
  --ok:#2F9E6E;
  --radius-lg:16px;
  --radius:14px;
  --radius-sm:10px;
  --radius-xs:12px;
  --shadow-1:0 1px 2px rgba(18,59,87,.06),0 8px 24px rgba(18,59,87,.07);
  --shadow-2:0 2px 4px rgba(18,59,87,.08),0 14px 32px rgba(18,59,87,.10);
  --shadow-3:0 16px 40px rgba(18,59,87,.14);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:80px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-xs);}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out,background-color .16s ease-out;}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4{margin:0;color:var(--brand-deep);font-weight:700;line-height:1.3;}
h1{font-size:40px;line-height:1.25;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:22px;line-height:1.5;font-weight:600;}
h4{font-size:18px;line-height:1.55;font-weight:600;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;max-width:var(--container);margin:0 auto;
  padding-left:32px;padding-right:32px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background-color .16s ease-out,color .16s ease-out,box-shadow .16s ease-out,transform .16s ease-out,border-color .16s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-hover);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-accent:hover{background:#cf7830;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:var(--radius-sm);}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;}
.link-arrow i{transition:transform .16s ease-out;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.site-header.is-stuck{border-bottom:1px solid var(--line);box-shadow:0 6px 18px rgba(18,59,87,.07);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;position:relative;}
.logo{display:inline-flex;align-items:baseline;gap:6px;text-decoration:none;}
.logo-mark{
  display:inline-block;background:var(--brand-deep);color:#fff;font-weight:700;font-size:18px;
  letter-spacing:.5px;padding:6px 12px;border-radius:8px;
}
.logo-sub{font-size:13px;color:var(--brand);font-weight:600;letter-spacing:1px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--ink);border-radius:8px;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink);cursor:pointer;
  transition:border-color .16s ease-out,background-color .16s ease-out,color .16s ease-out;
}
.mega-trigger:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-deep);}
.mega-trigger i{font-size:11px;transition:transform .18s ease-out;color:var(--muted);}
.mega-wrap.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:760px;
  display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:28px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 28px;box-shadow:var(--shadow-3);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s ease-out;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:14px;color:var(--muted);font-weight:600;letter-spacing:.5px;margin-bottom:14px;}
.mega-list li{margin-bottom:4px;}
.mega-list a{
  display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;
  font-size:15px;color:var(--ink);
}
.mega-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.55;}
.mega-list a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.mega-news li{margin-bottom:14px;}
.mega-news time{display:block;font-size:12px;color:var(--muted);letter-spacing:.4px;margin-bottom:4px;}
.mega-news a{font-size:14px;color:var(--ink);line-height:1.5;display:block;}
.mega-news a:hover{color:var(--brand);}
.mega-card{background:var(--brand-soft);border-radius:var(--radius-xs);padding:20px;}
.mega-card strong{display:block;font-size:16px;color:var(--brand-deep);margin-bottom:8px;}
.mega-card p{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:16px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  width:44px;height:44px;background:transparent;border:1px solid var(--line);
  border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out;}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding-top:24px;padding-bottom:8px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B9C5CF;}
.breadcrumb .current{color:var(--ink);}

/* ---------- Page head ---------- */
.page-head{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(115deg,rgba(18,59,87,.94) 0%,rgba(31,111,139,.88) 58%,rgba(31,111,139,.62) 100%),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:#fff;padding:44px 44px 46px;margin-top:8px;
  box-shadow:var(--shadow-2);
}
.page-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:18px;
}
.page-head .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.page-head h1{color:#fff;font-size:38px;max-width:760px;}
.page-head .sub{margin:14px 0 0;font-size:16px;color:rgba(255,255,255,.86);max-width:620px;}
.page-head-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.filter-pills{display:flex;gap:8px;flex-wrap:wrap;}
.filter-pills .pill{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
  cursor:pointer;transition:background-color .16s ease-out,color .16s ease-out;
}
.filter-pills .pill:hover{background:rgba(255,255,255,.22);color:#fff;}
.filter-pills .pill.is-active{background:#fff;color:var(--brand-deep);border-color:#fff;}

/* ---------- Section base ---------- */
.section{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:28px;}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px;}

/* ---------- Live feature ---------- */
.live-grid{display:grid;grid-template-columns:minmax(0,1.72fr) minmax(0,1fr);gap:24px;align-items:start;}
.live-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-1);
}
.cover-wrap{position:relative;border-radius:var(--radius-xs);overflow:hidden;}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-xs);transition:transform .22s ease-out;}
.live-main:hover .cover-wrap img{transform:scale(1.015);}
.badge-live{
  position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 12px;border-radius:999px;background:var(--accent);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.5px;
}
.badge-live .pulse{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 2s ease-in-out infinite;}
.badge-upcoming{
  position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;
  height:28px;padding:0 12px;border-radius:999px;background:#fff;color:var(--accent);
  border:1px solid var(--accent);font-size:12px;font-weight:700;letter-spacing:.5px;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.82);}}
.live-main h2{font-size:26px;margin-top:20px;}
.live-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px;font-size:13px;color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.countdown{
  margin-top:22px;padding:20px 22px;border-radius:var(--radius-xs);
  background:linear-gradient(180deg,#F2F8FB 0%,#EAF3F7 100%);
  border:1px solid var(--line);
}
.countdown .cd-label{font-size:13px;color:var(--muted);letter-spacing:.5px;margin-bottom:10px;}
.cd-digits{display:flex;align-items:baseline;gap:10px;font-variant-numeric:tabular-nums;}
.cd-digits .num{
  font-size:38px;font-weight:700;color:var(--brand-deep);line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:1px;
}
.cd-digits .unit{font-size:12px;color:var(--muted);margin-left:-6px;}
.cd-digits .colon{font-size:30px;color:var(--muted);line-height:1;margin:0 2px;}
.see-list{margin-top:24px;}
.see-list h3{font-size:17px;margin-bottom:14px;}
.see-list li{display:flex;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink);}
.see-list li:last-child{border-bottom:0;}
.see-list .idx{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:var(--accent);
  color:#fff;font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  margin-top:4px;
}
.subscribe-row{margin-top:24px;padding-top:24px;border-top:1px solid var(--line);display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap;justify-content:space-between;}
.sub-form{display:flex;gap:10px;flex:1 1 320px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 200px;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  font-size:15px;color:var(--ink);background:#fff;transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.sub-form input::placeholder{color:#93A2AE;}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,111,139,.18);}
.is-error input{border-color:var(--accent);}
.form-tip{display:none;font-size:13px;color:var(--accent);margin-top:8px;width:100%;}
.is-error .form-tip{display:block;}
.sub-ok{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;
  background:rgba(47,158,110,.12);color:var(--ok);font-size:14px;font-weight:600;
  border:1px solid rgba(47,158,110,.3);
}
.side-list{display:grid;gap:16px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.side-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D6E2EA;}
.side-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px;}
.side-card .time{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin:14px 0 8px;}
.side-card .time i{color:var(--brand);}
.side-card h4{font-size:16px;line-height:1.5;margin-bottom:12px;}
.side-card .set-remind{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.side-card .set-remind i{font-size:12px;}

/* ---------- Schedule timeline ---------- */
.schedule-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:8px 28px 28px;box-shadow:var(--shadow-1);
}
.day-group{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:28px;
  padding:26px 0;border-top:1px solid var(--line);
}
.day-group:first-child{border-top:0;}
.day-label strong{display:block;font-size:20px;color:var(--brand-deep);letter-spacing:.5px;}
.day-label span{display:block;font-size:13px;color:var(--muted);margin-top:4px;}
.slot-row{
  display:grid;grid-template-columns:78px minmax(0,1fr) auto auto;gap:16px;align-items:center;
  padding:14px 18px;border:1px solid var(--line);border-radius:var(--radius-xs);
  background:#FDFEFE;margin-bottom:12px;transition:border-color .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out;
}
.slot-row:last-child{margin-bottom:0;}
.slot-row:hover{border-color:#CFE0E8;background:#fff;box-shadow:var(--shadow-1);}
.slot-time{font-size:17px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.slot-title{font-size:15px;font-weight:600;color:var(--ink);}
.slot-title small{display:block;font-weight:400;font-size:13px;color:var(--muted);margin-top:2px;}
.status{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;white-space:nowrap;
}
.status.upcoming{background:var(--brand-soft);color:var(--brand);}
.status.live{background:var(--accent);color:#fff;}
.status.done{background:#F1F4F7;color:var(--muted);}
.slot-action{font-size:14px;font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.slot-action.muted{color:var(--muted);font-weight:500;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xs);
  margin-bottom:14px;overflow:hidden;transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.faq-item.is-open{border-color:#CFE0E8;box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--brand-deep);line-height:1.6;
}
.faq-q .icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
  transition:transform .18s ease-out,background-color .18s ease-out;
}
.faq-item.is-open .faq-q .icon{transform:rotate(180deg);background:var(--brand-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease-out;}
.faq-a .inner{
  padding:0 24px 20px 24px;font-size:15px;line-height:1.8;color:var(--muted);
  border-left:3px solid transparent;margin-left:24px;padding-left:18px;
}
.faq-item.is-open .faq-a .inner{border-left-color:var(--brand);}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(115deg,#1B4F6D 0%,var(--brand) 70%,#2A88A5 100%);
  color:#fff;padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;font-size:28px;max-width:560px;}
.cta-band p{margin:10px 0 0;color:rgba(255,255,255,.85);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-deep);color:#fff;margin-top:72px;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.25fr;gap:32px;padding-bottom:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-mark{background:#fff;color:var(--brand-deep);}
.footer-brand .logo-sub{color:var(--brand-soft);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:rgba(255,255,255,.72);font-size:14px;display:inline-block;transition:color .16s ease-out,transform .16s ease-out;}
.footer-col ul a:hover{color:var(--brand-soft);transform:translateX(2px);}
.footer-sub p{font-size:13px;color:rgba(255,255,255,.66);margin-bottom:14px;line-height:1.7;}
.footer-sub form{display:flex;gap:8px;flex-wrap:wrap;}
.footer-sub input{
  flex:1 1 150px;height:40px;padding:0 12px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.55);}
.footer-sub input:focus{outline:none;border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(232,241,245,.18);}
.footer-sub .btn{height:40px;padding:0 16px;font-size:14px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  h1{font-size:34px;}
  .page-head h1{font-size:32px;}
  .mega-panel{width:700px;}
}
@media (max-width:1023px){
  .container{padding-left:24px;padding-right:24px;}
  .header-inner{height:64px;gap:16px;}
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;
    align-items:stretch;gap:0;padding:8px 8px 16px;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);margin-left:0;
  }
  .site-header.nav-open .main-nav{display:flex;}
  .nav-link{height:48px;padding:0 12px;border-radius:8px;font-size:16px;}
  .nav-link.active::after{display:none;}
  .nav-link.active{background:var(--brand-soft);}
  .mega-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-primary.btn-sm{height:40px;padding:0 14px;font-size:13px;}
  .live-grid{grid-template-columns:1fr;}
  .side-list{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none;}
  .side-list::-webkit-scrollbar{display:none;}
  .side-card{flex:0 0 78%;scroll-snap-align:start;}
  .page-head{padding:36px 28px;}
  .day-group{grid-template-columns:1fr;gap:16px;}
  .day-label{display:flex;align-items:baseline;gap:10px;}
  .day-label span{margin-top:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:36px 28px;}
}
@media (max-width:767px){
  h1{font-size:28px;}
  h2{font-size:24px;}
  .page-head h1{font-size:26px;}
  .page-head{padding:28px 20px;border-radius:var(--radius);}
  .page-head .sub{font-size:15px;}
  .section{padding:40px 0;}
  .live-main{padding:16px;}
  .cd-digits .num{font-size:30px;}
  .cd-digits .colon{font-size:24px;}
  .slot-row{grid-template-columns:1fr;gap:8px;padding:14px;}
  .slot-row .slot-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .slot-action{justify-self:start;}
  .schedule-panel{padding:4px 16px 20px;}
  .faq-q{padding:16px 20px;font-size:15px;}
  .faq-a .inner{margin-left:16px;padding:0 20px 18px 16px;}
  .cta-band{padding:28px 20px;}
  .cta-band h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .subscribe-row{flex-direction:column;align-items:stretch;}
  .sub-form{flex-direction:column;}
  .sub-form input,.sub-form .btn{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:519px){
  .container{padding-left:16px;padding-right:16px;}
  .side-card{flex:0 0 86%;}
  .filter-pills .pill{height:34px;padding:0 14px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
}
@media (hover:none){
  .side-card:hover{transform:none;}
  .live-main:hover .cover-wrap img{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#1F6F8B;
  --brand-deep:#123B57;
  --brand-soft:#E8F1F5;
  --accent:#E28A3D;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16232E;
  --muted:#5C6B78;
  --line:#E3E9EF;
  --ok:#2F9E6E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(18,59,87,.06),0 8px 24px rgba(18,59,87,.07);
  --shadow-2:0 2px 4px rgba(18,59,87,.08),0 14px 32px rgba(18,59,87,.10);
  --shadow-3:0 16px 40px rgba(18,59,87,.14);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:#1A5F78;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding:80px 0;}
.section-sm{padding:48px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--brand-deep);letter-spacing:.2px;}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:600;letter-spacing:.4px;
  padding:6px 14px;border-radius:var(--radius-pill);
}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:transform .16s ease-out,box-shadow .16s ease-out,background .16s ease-out,color .16s ease-out,border-color .16s ease-out;
  text-align:center;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#1A5F78;border-color:#1A5F78;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-accent:hover{background:#CE7A2E;border-color:#CE7A2E;color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand);}
.link-arrow i{transition:transform .16s ease-out;}
.link-arrow:hover i{transform:translateX(4px);}
/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;background:#fff;
  border-bottom:1px solid transparent;transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(18,59,87,.07);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;}
.logo-mark{
  display:inline-block;background:var(--brand);color:#fff;
  font-size:17px;font-weight:700;letter-spacing:.6px;
  padding:6px 12px;border-radius:10px;line-height:1.2;
}
.logo-sub{font-size:13px;font-weight:600;color:var(--brand-deep);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--muted);border-radius:10px;
  transition:background .16s ease-out,color .16s ease-out;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.active{background:var(--brand-soft);color:var(--brand-deep);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  font-size:14px;font-weight:600;color:var(--ink);cursor:pointer;
  transition:border-color .16s ease-out,color .16s ease-out,background .16s ease-out;
}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand);}
.mega-trigger i{font-size:11px;transition:transform .18s ease-out;color:var(--muted);}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);color:var(--brand);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:780px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-3);padding:24px;
  display:grid;grid-template-columns:1fr 1.15fr .95fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .15s ease-out,transform .15s ease-out,visibility .15s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--muted);margin-bottom:14px;}
.mega-list li+li{margin-top:4px;}
.mega-list a{
  display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:9px;
  font-size:14px;font-weight:600;color:var(--ink);transition:background .16s ease-out,color .16s ease-out;
}
.mega-list a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);flex-shrink:0;opacity:.5;transition:opacity .16s ease-out;}
.mega-list a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.mega-list a:hover::before{opacity:1;}
.mega-news li+li{margin-top:14px;}
.mega-news time{display:block;font-size:12px;color:var(--muted);letter-spacing:.4px;margin-bottom:4px;}
.mega-news a{font-size:14px;font-weight:600;color:var(--ink);line-height:1.55;display:block;}
.mega-news a:hover{color:var(--brand);}
.mega-card{background:var(--brand-soft);border-radius:14px;padding:20px;}
.mega-card strong{display:block;font-size:15px;color:var(--brand-deep);margin-bottom:8px;}
.mega-card p{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
/* ---------- 面包屑 ---------- */
.crumb-bar{padding-top:24px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:10px;opacity:.6;}
.crumb .current{color:var(--ink);font-weight:600;}
/* ---------- 页头 ---------- */
.page-hero{padding:40px 0 64px;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.hero-copy h1{
  font-size:40px;line-height:1.25;font-weight:700;color:var(--brand-deep);letter-spacing:.3px;margin:18px 0 16px;
}
.hero-copy h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);max-width:36em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-metrics{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:28px;font-size:13px;color:var(--muted);}
.hero-metrics span{display:inline-flex;align-items:center;gap:8px;}
.hero-metrics i{color:var(--brand);font-size:12px;}
.hero-metrics .sep{width:1px;height:14px;background:var(--line);display:inline-block;}
.hero-figure{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-2);}
.hero-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:4/3;}
.hero-figure::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,111,139,0) 40%,rgba(31,111,139,.13) 100%);
  pointer-events:none;
}
.hero-tip{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(255,255,255,.94);border-radius:12px;padding:14px 16px;
  box-shadow:var(--shadow-1);display:flex;align-items:center;gap:12px;
}
.hero-tip i{color:var(--brand);font-size:18px;}
.hero-tip span{font-size:13px;line-height:1.6;color:var(--brand-deep);font-weight:600;}
/* ---------- 步骤流 ---------- */
.steps-block{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:88px 1fr;gap:32px;align-items:start;
  padding:32px 0;border-bottom:1px dashed var(--line);
}
.step:last-child{border-bottom:none;}
.step-no{
  width:88px;height:88px;border-radius:50%;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;
  font-size:30px;font-weight:700;color:var(--brand);letter-spacing:-1px;
  font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:22px;font-weight:600;color:var(--brand-deep);line-height:1.5;margin-bottom:10px;}
.step-body p{color:var(--muted);font-size:16px;line-height:1.8;max-width:56em;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);
}
.tag-accent{background:#fff;border:1px solid var(--accent);color:var(--accent);}
.tag-time{background:#fff;border:1px solid var(--line);color:var(--muted);}
.step:nth-child(even){grid-template-columns:1fr 88px;}
.step:nth-child(even) .step-no{order:2;}
.step:nth-child(even) .step-body{order:1;text-align:right;}
.step:nth-child(even) .step-tags{justify-content:flex-end;}
.step:nth-child(even) .step-body p{margin-left:auto;}
/* ---------- 入口卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.entry-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  display:flex;flex-direction:column;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D3E1E9;}
.entry-icon{
  width:48px;height:48px;border-radius:12px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:19px;margin-bottom:18px;
}
.entry-card h3{font-size:19px;font-weight:600;color:var(--brand-deep);margin-bottom:10px;}
.entry-card p{font-size:15px;line-height:1.8;color:var(--muted);margin-bottom:20px;}
.entry-card .link-arrow{margin-top:auto;}
/* ---------- 提示条 ---------- */
.notice-bar{
  background:var(--brand-soft);border-left:4px solid var(--accent);border-radius:12px;
  padding:22px 26px;display:flex;gap:16px;align-items:flex-start;
}
.notice-bar i{color:var(--accent);font-size:18px;margin-top:4px;}
.notice-bar strong{display:block;font-size:16px;color:var(--brand-deep);margin-bottom:6px;}
.notice-bar p{font-size:14px;line-height:1.8;color:#3E5566;}
/* ---------- 相关文章 ---------- */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.article-thumb{position:relative;overflow:hidden;}
.article-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.article-card:hover .article-thumb img{transform:scale(1.04);}
.article-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.article-body h3{font-size:17px;line-height:1.55;font-weight:600;color:var(--ink);margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.article-card:hover .article-body h3{color:var(--brand);}
.article-body p{font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.article-foot{display:flex;align-items:center;gap:8px;margin-top:18px;font-size:13px;color:var(--muted);}
.article-foot i{font-size:11px;transition:transform .16s ease-out;}
.article-card:hover .article-foot i{transform:translateX(4px);color:var(--brand);}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item.open{border-color:#CFE0E8;box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:none;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--brand-deep);line-height:1.6;
}
.faq-q i{font-size:13px;color:var(--brand);transition:transform .2s ease-out;flex-shrink:0;}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-a-inner{padding:0 24px 22px;border-left:3px solid var(--brand);margin-left:24px;padding-left:18px;}
.faq-a-inner p{font-size:15px;line-height:1.8;color:var(--muted);}
/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-soft);border-radius:20px;padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--brand-deep);}
.cta-band p{margin-top:10px;font-size:15px;color:#41596B;max-width:40em;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 0;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo-mark{background:var(--brand);color:#fff;}
.footer-brand .logo-sub{color:#BBD3DE;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:#A9C2CF;max-width:26em;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:1px;color:#9FBAC8;margin-bottom:16px;}
.footer-col ul li+li{margin-top:10px;}
.footer-col a{font-size:14px;color:#D6E5EC;display:inline-block;transition:color .16s ease-out,transform .16s ease-out;}
.footer-col a:hover{color:#E8F1F5;transform:translateX(2px);}
.footer-sub p{font-size:14px;line-height:1.75;color:#A9C2CF;margin-bottom:14px;}
.footer-sub form{display:flex;gap:8px;}
.footer-sub input{
  flex:1;height:44px;padding:0 14px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:#93A2AE;}
.footer-sub input:focus{outline:none;border-color:#7FB6C9;box-shadow:0 0 0 3px rgba(127,182,201,.22);}
.footer-sub .btn{height:44px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:#9FBAC8;
}
.sub-ok{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:var(--radius-pill);
  background:rgba(47,158,110,.16);color:#8FE0BC;font-size:14px;font-weight:600;
}
/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .mega-panel{width:700px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .header-inner{height:64px;gap:16px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:12px 16px 18px;
    border-bottom:1px solid var(--line);box-shadow:0 14px 28px rgba(18,59,87,.10);
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{height:48px;padding:0 12px;font-size:16px;border-radius:8px;}
  .header-actions .btn-primary{display:none;}
  .mega-panel{
    position:absolute;top:calc(100% + 10px);right:0;left:auto;width:min(560px,92vw);
    grid-template-columns:1fr 1fr;gap:20px;padding:20px;
  }
  .mega-wrap:hover .mega-panel{opacity:0;visibility:hidden;transform:translateY(8px);}
  .mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:32px;}
  .hero-figure img{aspect-ratio:16/9;}
  .step,.step:nth-child(even){grid-template-columns:72px 1fr;gap:24px;}
  .step-no{width:72px;height:72px;font-size:26px;}
  .step:nth-child(even) .step-no{order:1;}
  .step:nth-child(even) .step-body{order:2;text-align:left;}
  .step:nth-child(even) .step-tags{justify-content:flex-start;}
  .entry-grid{grid-template-columns:1fr;}
  .article-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px 32px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .hero-copy h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{font-size:12px;gap:10px;}
  .section-head h2{font-size:24px;}
  .step,.step:nth-child(even){grid-template-columns:1fr;gap:16px;padding:26px 0;}
  .step-no{width:60px;height:60px;font-size:22px;}
  .entry-card{padding:20px;}
  .article-grid{grid-template-columns:1fr;}
  .faq-q{padding:16px 20px;font-size:15px;}
  .faq-a-inner{margin-left:20px;padding:0 16px 18px 14px;}
  .notice-bar{padding:18px 18px;flex-direction:column;gap:10px;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;}
  .mega-panel{grid-template-columns:1fr;width:calc(100vw - 32px);right:-8px;}
  .hero-tip{left:12px;right:12px;bottom:12px;padding:12px;}
  .site-footer{padding-top:48px;margin-top:56px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}
@media (hover:none){
  .entry-card:hover,.article-card:hover{transform:none;}
  .btn:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --brand:#1F6F8B;
  --brand-deep:#123B57;
  --accent:#E28A3D;
  --brand-soft:#E8F1F5;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16232E;
  --muted:#5C6B78;
  --line:#E3E9EF;
  --ok:#2F9E6E;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,59,87,.06), 0 8px 24px rgba(18,59,87,.07);
  --shadow-2:0 2px 4px rgba(18,59,87,.08), 0 14px 32px rgba(18,59,87,.10);
  --shadow-3:0 16px 40px rgba(18,59,87,.14);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--brand);text-decoration:none;transition:color .16s ease-out}
button{font-family:inherit}
[hidden]{display:none !important}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(18,59,87,.06),0 8px 24px rgba(18,59,87,.06);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}

.logo{display:inline-flex;align-items:center;gap:8px;flex:none}
.logo-mark{
  background:var(--brand);color:#fff;font-weight:800;font-size:17px;
  letter-spacing:.5px;padding:6px 12px;border-radius:10px;line-height:1.25;
}
.logo-sub{
  font-size:12px;color:var(--brand-deep);font-weight:600;letter-spacing:.6px;
  padding:3px 9px;border:1px solid var(--line);border-radius:999px;background:var(--brand-soft);
}

.main-nav{display:flex;align-items:center;gap:2px;margin-right:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink);
  transition:background-color .16s ease-out,color .16s ease-out;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:7px;height:2px;
  border-radius:2px;background:var(--brand);
}

.header-actions{display:flex;align-items:center;gap:10px;flex:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .16s ease-out,border-color .16s ease-out,color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#1A5F78;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:none;box-shadow:var(--shadow-1)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#CE7A2D;color:#fff;transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}

/* ---------- mega menu ---------- */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:44px;padding:0 14px;
  background:transparent;border:1px solid transparent;border-radius:10px;
  color:var(--ink);font-size:15px;font-weight:500;cursor:pointer;
  transition:background-color .16s ease-out,color .16s ease-out;
}
.mega-trigger:hover{background:var(--brand-soft);color:var(--brand)}
.mega-trigger i{font-size:11px;transition:transform .16s ease-out}
.mega-wrap.is-open .mega-trigger{background:var(--brand-soft);color:var(--brand)}
.mega-wrap.is-open .mega-trigger i{transform:rotate(180deg)}

.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:820px;max-width:calc(100vw - 48px);
  display:grid;grid-template-columns:1fr 1.25fr 1.1fr;gap:24px;
  padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-3);z-index:120;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:1.2px;margin-bottom:14px}
.mega-list{display:flex;flex-direction:column;gap:2px}
.mega-list a{
  display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;
  color:var(--ink);font-size:14px;transition:background-color .16s,color .16s;
}
.mega-list a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);flex:none}
.mega-list a:hover{background:var(--brand-soft);color:var(--brand)}
.mega-news{display:flex;flex-direction:column;gap:14px}
.mega-news time{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}
.mega-news a{font-size:14px;color:var(--ink);line-height:1.55;display:block}
.mega-news a:hover{color:var(--brand)}
.mega-card{
  background:var(--brand-soft);border-radius:12px;padding:18px;height:100%;
  display:flex;flex-direction:column;gap:10px;
}
.mega-card strong{font-size:15px;color:var(--brand-deep)}
.mega-card p{font-size:13px;line-height:1.6;color:var(--muted)}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand-deep);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft)}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:24px 0 0;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B9C4CD}
.breadcrumb .current{color:var(--ink)}

/* ---------- hero ---------- */
.page-hero{
  padding:44px 0 64px;
  background:linear-gradient(180deg,var(--brand-soft) 0%,rgba(232,241,245,0) 100%);
}
.hero-inner{max-width:780px;margin:0 auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--brand);margin-bottom:20px;
}
.eyebrow i{font-size:12px}
.page-hero h1{
  font-size:40px;line-height:1.25;font-weight:700;color:var(--brand-deep);letter-spacing:-.5px;
}
.page-hero .lead{margin-top:16px;font-size:16px;line-height:1.75;color:var(--muted)}

.search-box{
  margin:32px auto 0;max-width:640px;display:flex;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;
  box-shadow:var(--shadow-1);
}
.search-box input{
  flex:1;min-width:0;height:44px;border:0;background:transparent;padding:0 14px;
  font-size:15px;color:var(--ink);outline:none;
}
.search-box input::placeholder{color:#93A2AE}
.search-box input:focus{outline:none}
.search-box .btn{height:44px}

.hot-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px}
.hot-tags span{font-size:13px;color:var(--muted);margin-right:2px;line-height:26px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.85);border:1px solid var(--line);
  font-size:12px;color:var(--brand);transition:background-color .16s,color .16s,border-color .16s;
}
.tag:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--brand-deep)}
.section-head p{margin-top:12px;font-size:16px;color:var(--muted);line-height:1.75}

/* ---------- help cards ---------- */
.help-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.help-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.help-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE0E8}
.help-icon{
  width:52px;height:52px;border-radius:14px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:18px;
}
.help-card h3{font-size:22px;line-height:1.5;font-weight:600;color:var(--brand-deep)}
.help-card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--muted)}
.help-links{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.help-links a{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand);
}
.help-links a i{font-size:11px;transition:transform .16s ease-out}
.help-links a:hover{text-decoration:underline}
.help-links a:hover i{transform:translateX(3px)}

/* ---------- stats strip ---------- */
.stats-strip{background:var(--brand-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-inner{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding:36px 0}
.stat-item{display:flex;gap:14px;align-items:flex-start}
.stat-item i{
  width:40px;height:40px;flex:none;border-radius:10px;background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:var(--shadow-1);
}
.stat-item strong{display:block;font-size:16px;color:var(--brand-deep);font-weight:700}
.stat-item span{display:block;font-size:13px;color:var(--muted);line-height:1.6;margin-top:2px}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:20px 24px;transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.faq-item:hover{border-color:#CFE0E8}
.faq-item.is-open{border-color:#CFE0E8;box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-q i{
  flex:none;width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .16s ease-out,background-color .16s ease-out,color .16s ease-out;
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);background:var(--brand);color:#fff}
.faq-a{margin-top:16px;padding-left:16px;border-left:3px solid var(--brand)}
.faq-a p{font-size:15px;line-height:1.8;color:var(--muted)}
.faq-a p + p{margin-top:10px}
.faq-more{margin-top:28px;display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.faq-more a{display:inline-flex;align-items:center;gap:6px;font-weight:600}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:start}
.contact-info h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--brand-deep)}
.contact-info > p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted)}
.info-list{margin-top:28px;display:flex;flex-direction:column;gap:18px}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-item i{
  width:38px;height:38px;flex:none;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.info-item strong{display:block;font-size:15px;color:var(--ink);font-weight:600}
.info-item span{display:block;font-size:13.5px;color:var(--muted);line-height:1.7;margin-top:2px}

.contact-card{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  padding:32px;box-shadow:var(--shadow-1);
}
.contact-card h3{font-size:18px;font-weight:600;color:var(--brand-deep);margin-bottom:6px}
.contact-card .card-sub{font-size:13.5px;color:var(--muted);margin-bottom:24px}

.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,
.field select,
.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;
  height:44px;padding:0 14px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.field select{appearance:none;background-image:none}
.field textarea{height:auto;min-height:140px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,
.field textarea::placeholder{color:#93A2AE}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,111,139,.18);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{margin-top:14px;font-size:13px;line-height:1.7;color:var(--muted)}
.form-note.is-ok{color:var(--ok);font-weight:600}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand .logo-sub{background:transparent;border-color:rgba(255,255,255,.3);color:#D9E8EF}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:300px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:#fff}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .16s ease-out,transform .16s ease-out;
}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px)}
.footer-sub p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.66);margin-bottom:12px}
.footer-sub form{display:flex;gap:8px}
.footer-sub input{
  flex:1;min-width:0;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;padding:0 12px;font-size:14px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.5)}
.footer-sub input:focus{outline:none;border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(255,255,255,.14)}
.footer-sub .btn{height:40px;padding:0 16px;font-size:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{
    position:fixed;left:16px;right:16px;top:78px;z-index:110;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:12px;box-shadow:var(--shadow-3);margin-right:0;
  }
  .main-nav.is-open{display:flex}
  .main-nav .nav-link{min-height:48px;padding:0 14px}
  .main-nav .nav-link.active::after{left:14px;right:auto;width:24px;bottom:10px}
  .nav-toggle{display:inline-flex}
  .mega-wrap{display:none}
  .header-actions .btn{display:none}

  .page-hero{padding:36px 0 48px}
  .page-hero h1{font-size:32px}
  .section{padding:56px 0}
  .help-grid{grid-template-columns:1fr}
  .contact-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stats-inner{grid-template-columns:1fr;gap:20px;padding:28px 0}
}

@media (max-width:640px){
  .container{padding:0 16px}
  .header-inner{min-height:64px;gap:12px}
  .logo-mark{font-size:15px;padding:5px 10px}
  .logo-sub{display:none}
  .main-nav{top:70px}
  .page-hero h1{font-size:28px;line-height:1.3}
  .page-hero .lead{font-size:15px}
  .search-box{flex-direction:column;padding:10px}
  .search-box .btn{width:100%}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .contact-info h2{font-size:24px}
  .help-card{padding:22px}
  .contact-card{padding:22px}
  .field-row{grid-template-columns:1fr}
  .faq-item{padding:16px 20px}
  .faq-q{font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (hover:none){
  .btn-primary:hover,.btn-accent:hover,.help-card:hover{transform:none}
}

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