/* roulang page: index */
:root{
  --brand-900:#062a44;
  --brand-800:#083a5c;
  --brand-700:#0b5678;
  --brand-600:#0d7a9e;
  --brand-500:#12a3c4;
  --brand-400:#22c6de;
  --accent:#f5b73e;
  --accent-deep:#d9942a;
  --ink:#0a1a2f;
  --text:#16273f;
  --muted:#5f7290;
  --line:#e3ebf6;
  --bg:#f6f9fd;
  --white:#ffffff;
  --radius-xl:22px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(10,32,60,.05);
  --shadow-md:0 12px 30px rgba(10,32,60,.10);
  --shadow-lg:0 24px 56px rgba(8,38,68,.18);
  --grad:linear-gradient(135deg,#062a44 0%,#0b5678 52%,#17bcda 100%);
  --grad-soft:linear-gradient(135deg,#eaf6fb 0%,#f6fbff 100%);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md);}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-400);}
h1,h2,h3,h4{margin:0;line-height:1.34;color:var(--ink);font-weight:800;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,.pill:focus-visible{outline:3px solid rgba(34,198,222,.55);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(10,32,60,.10);}
.header-inner{position:relative;height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:800;color:var(--ink);letter-spacing:.4px;white-space:nowrap;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:var(--grad);display:grid;place-items:center;
  color:#fff;font-size:15px;font-weight:800;
  box-shadow:0 8px 18px rgba(13,122,158,.32);
}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-main a{
  padding:8px 15px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--muted);transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-main a:hover{color:var(--brand-700);background:#eef6fb;}
.nav-main a.active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(12,110,145,.28);}
.header-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;
  color:#3a2600;background:var(--accent);white-space:nowrap;
  box-shadow:0 8px 18px rgba(245,183,62,.34);
  transition:transform .2s ease,box-shadow .2s ease;
}
.header-cta:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 12px 24px rgba(245,183,62,.42);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.55;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(5,26,44,.95) 0%,rgba(8,52,80,.84) 46%,rgba(14,104,138,.52) 100%);
}
.hero-inner{position:relative;z-index:2;padding:84px 0 70px;max-width:860px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;letter-spacing:1px;color:#c9ecf8;
  margin-bottom:22px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.hero-title{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.22;
  color:#fff;
  letter-spacing:.5px;
  text-shadow:0 4px 24px rgba(0,20,38,.4);
}
.hero-lead{
  margin-top:20px;max-width:720px;
  font-size:15.5px;line-height:1.85;color:#cfe6f4;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;
}
.hero-stat{
  flex:1 1 150px;min-width:140px;
  padding:14px 18px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(6px);
}
.hero-stat strong{display:block;font-size:24px;font-weight:800;color:#fff;line-height:1.2;}
.hero-stat span{font-size:13px;color:#a9cde0;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:10px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;min-height:44px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(12,110,145,.30);}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 18px 34px rgba(12,110,145,.40);}
.btn-accent{background:var(--accent);color:#3a2600;box-shadow:0 12px 26px rgba(245,183,62,.36);}
.btn-accent:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 18px 34px rgba(245,183,62,.46);}
.btn-ghost{background:transparent;color:#bfe6f5;border-color:rgba(255,255,255,.38);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:rgba(13,122,158,.34);}
.btn-outline:hover{background:#eef8fc;color:var(--brand-800);transform:translateY(-2px);}

/* ---------- pill nav ---------- */
.pill-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;position:relative;z-index:5;}
.pill-track{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:2px 0;}
.pill-track::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;padding:9px 20px;border-radius:999px;
  border:1px solid var(--line);background:#f7fafd;
  font-size:14px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.pill:hover{border-color:var(--brand-400);color:var(--brand-700);background:#eef8fc;}
.pill.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(12,110,145,.26);}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section--tight{padding:54px 0;}
.section--alt{background:#fff;}
.section--soft{background:var(--grad-soft);}
.section--deep{background:linear-gradient(140deg,#062a44 0%,#0a4a6b 58%,#0d7a9e 100%);color:#d7edf9;}
.section--deep h2,.section--deep h3{color:#fff;}
.section--deep .section-desc{color:#aecde0;}
.section--deep .eyebrow{color:#7fd8ec;}
.section--deep .eyebrow::before{background:linear-gradient(90deg,#22c6de,#7fe8f7);}
.section-head{max-width:770px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center .eyebrow{justify-content:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:800;letter-spacing:1.6px;color:var(--brand-600);
  text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--brand-500),var(--brand-400));}
.section-title{font-size:clamp(22px,2.6vw,30px);}
.section-desc{margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- grids ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:26px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dff0;}
.card h3{font-size:17px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.card-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--brand-600);margin-bottom:16px;
  border:1px solid #dcebf6;
}
.card:hover .card-icon{background:var(--grad);color:#fff;border-color:transparent;}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);overflow:hidden;}
.stat-item{padding:26px 22px;border-right:1px solid rgba(255,255,255,.12);}
.stat-item:last-child{border-right:0;}
.stat-num{display:block;font-size:30px;font-weight:800;color:#fff;line-height:1.15;}
.stat-num em{font-style:normal;font-size:15px;font-weight:700;color:#7fe8f7;margin-left:3px;}
.stat-label{display:block;margin-top:6px;font-size:13.5px;color:#aecde0;}

/* ---------- scene cards ---------- */
.scene-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0b3a55;}
.scene-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.scene-card:hover .scene-thumb img{transform:scale(1.05);}
.scene-badge{
  position:absolute;left:14px;top:14px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:rgba(6,42,68,.72);color:#9fe6f6;border:1px solid rgba(127,232,247,.36);
  backdrop-filter:blur(4px);
}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.scene-body h3{font-size:16.5px;margin:0;}
.scene-body p{font-size:14px;color:var(--muted);line-height:1.78;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.tag{
  display:inline-block;padding:3px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--brand-700);
  background:#eaf6fb;border:1px solid #d4eaf6;
}

/* ---------- ability grid ---------- */
.ability-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 20px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ability-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dff0;}
.ability-item .card-icon{width:40px;height:40px;border-radius:11px;margin-bottom:14px;}
.ability-item h3{font-size:15.5px;margin-bottom:8px;}
.ability-item p{font-size:13.8px;color:var(--muted);line-height:1.75;}

/* ---------- steps ---------- */
.step-list{display:grid;gap:16px;}
.step-item{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dff0;}
.step-num{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
  background:var(--grad);color:#fff;font-size:19px;font-weight:800;
  box-shadow:0 10px 22px rgba(12,110,145,.28);
}
.step-item h3{font-size:16.5px;margin-bottom:8px;}
.step-item p{font-size:14.3px;color:var(--muted);line-height:1.8;}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative;}
.tl-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease;}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.tl-dot{width:11px;height:11px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 0 5px rgba(18,163,196,.14);margin-bottom:16px;}
.tl-tag{font-size:12.5px;font-weight:800;letter-spacing:1.2px;color:var(--brand-600);}
.tl-item h3{font-size:15.5px;margin:8px 0 8px;}
.tl-item p{font-size:13.8px;color:var(--muted);line-height:1.75;}

/* ---------- quotes ---------- */
.quote-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 26px 24px;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease;}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.quote-mark{font-size:40px;line-height:1;color:#cfe6f2;font-weight:800;margin-bottom:6px;}
.quote-card p{font-size:14.5px;color:var(--text);line-height:1.85;}
.quote-who{margin-top:18px;display:flex;align-items:center;gap:11px;}
.quote-avatar{width:36px;height:36px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800;}
.quote-name{font-size:14px;font-weight:700;color:var(--ink);}
.quote-role{font-size:12.5px;color:var(--muted);}

/* ---------- channel cards ---------- */
.channel-card{
  display:block;position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px 26px;box-shadow:var(--shadow-sm);color:inherit;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.channel-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;
  background:var(--grad-soft);opacity:.9;transition:transform .3s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dff0;color:inherit;}
.channel-card:hover::after{transform:scale(1.15);}
.channel-index{position:relative;z-index:1;font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--brand-500);}
.channel-card h3{position:relative;z-index:1;font-size:18px;margin:12px 0 10px;}
.channel-card p{position:relative;z-index:1;font-size:14.2px;color:var(--muted);line-height:1.8;}
.channel-link{position:relative;z-index:1;display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:700;color:var(--brand-600);}
.channel-card:hover .channel-link{color:var(--brand-800);}

/* ---------- news ---------- */
.news-wrap{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);gap:28px;align-items:start;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:flex;align-items:flex-start;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 24px;box-shadow:var(--shadow-sm);color:inherit;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dff0;color:inherit;}
.news-body{flex:1;min-width:0;}
.news-title{font-size:16px;margin-bottom:8px;color:var(--ink);transition:color .2s ease;}
.news-item:hover .news-title{color:var(--brand-700);}
.news-summary{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap;}
.news-date{font-size:12.5px;color:#8ba0ba;}
.news-arrow{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:#eef6fb;color:var(--brand-600);font-size:15px;font-weight:700;transition:.2s ease;
}
.news-item:hover .news-arrow{background:var(--grad);color:#fff;}
.news-aside{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm);}
.news-aside h3{font-size:16px;margin-bottom:14px;}
.aside-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:20px;}
.aside-tags span{display:inline-block;padding:5px 13px;border-radius:999px;background:#eef7fb;border:1px solid #d9ecf6;font-size:13px;color:var(--brand-700);font-weight:600;}
.aside-note{font-size:13.5px;color:var(--muted);line-height:1.8;padding-top:18px;border-top:1px dashed var(--line);}
.empty-note{padding:26px;border:1px dashed var(--line);border-radius:var(--radius-md);background:#fff;color:var(--muted);font-size:14px;}

/* ---------- topics ---------- */
.topic-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 20px;box-shadow:var(--shadow-sm);color:inherit;
  transition:transform .22s ease,box-shadow .22s ease,border-color .2s ease;
  display:block;
}
.topic-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dff0;color:inherit;}
.topic-item h3{font-size:15.5px;margin-bottom:8px;}
.topic-item p{font-size:13.6px;color:var(--muted);line-height:1.75;}
.topic-kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:1.2px;color:var(--brand-500);margin-bottom:8px;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  background:var(--grad);color:#fff;padding:52px 44px;
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:32px;align-items:center;
  box-shadow:var(--shadow-lg);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.24),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,27px);line-height:1.4;}
.cta-band p{margin-top:14px;color:#cbe8f6;font-size:14.8px;line-height:1.85;max-width:560px;}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ---------- footer ---------- */
.site-footer{background:#062033;color:#a8c2d4;padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:0 8px 18px rgba(0,0,0,.3);}
.footer-desc{font-size:14px;line-height:1.85;color:#8fb0c6;max-width:360px;}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.6px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#9fbdd2;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:#7fe8f7;padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#7d9bb1;
}
.footer-bottom .sep{opacity:.5;margin:0 8px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid rgba(255,255,255,.12);}
  .news-wrap{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .nav-main{
    position:absolute;left:0;right:0;top:64px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 20px 20px;box-shadow:0 18px 34px rgba(10,32,60,.12);
  }
  .nav-main.is-open{display:flex;}
  .nav-main a{padding:12px 16px;border-radius:10px;}
  .hero-inner{padding:64px 0 56px;}
  .section{padding:58px 0;}
  .section--tight{padding:44px 0;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.12);}
  .stat-item:last-child{border-bottom:0;}
  .step-item{grid-template-columns:1fr;gap:14px;padding:22px;}
  .hero-title{font-size:28px;}
  .hero-stats{gap:10px;}
  .hero-stat{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:36px 24px;}
}
@media (max-width:520px){
  .brand{font-size:15px;}
  .brand-mark{width:30px;height:30px;flex-basis:30px;font-size:13px;}
  .hero-inner{padding:52px 0 46px;}
  .hero-title{font-size:25px;}
  .hero-lead{font-size:14.5px;}
  .btn{width:100%;}
  .hero-actions .btn{width:auto;flex:1 1 auto;}
  .news-item{padding:18px;gap:12px;}
  .news-arrow{display:none;}
  .quote-card,.card{padding:22px;}
  .header-inner{height:60px;}
  .nav-main{top:60px;}
}

/* roulang page: category1 */
:root{
 --brand-900:#062a44;
 --brand-800:#083a5c;
 --brand-700:#0b5678;
 --brand-600:#0d7a9e;
 --brand-500:#12a3c4;
 --brand-400:#22c6de;
 --accent:#f5b73e;
 --accent-deep:#d9942a;
 --ink:#0a1a2f;
 --text:#16273f;
 --muted:#5f7290;
 --line:#e3ebf6;
 --bg:#f6f9fd;
 --white:#ffffff;
 --radius-xl:22px;
 --radius-lg:18px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(10,32,60,.05);
 --shadow-md:0 12px 30px rgba(10,32,60,.10);
 --shadow-lg:0 24px 56px rgba(8,38,68,.18);
 --grad:linear-gradient(135deg,#062a44 0%,#0b5678 52%,#17bcda 100%);
 --grad-soft:linear-gradient(135deg,#eaf6fb 0%,#f6fbff 100%);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md);}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-400);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.32;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,.pill:focus-visible,.news-card:focus-visible{outline:3px solid rgba(34,198,222,.55);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:120;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(10,32,60,.10);}
.header-inner{position:relative;height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:800;color:var(--ink);letter-spacing:.4px;white-space:nowrap;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
 width:34px;height:34px;flex:0 0 34px;border-radius:11px;
 background:var(--grad);display:grid;place-items:center;
 color:#fff;font-size:15px;font-weight:800;
 box-shadow:0 8px 18px rgba(13,122,158,.32);
}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-main a{
 padding:8px 15px;border-radius:999px;font-size:14.5px;font-weight:600;
 color:var(--muted);transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-main a:hover{color:var(--brand-700);background:#eef6fb;}
.nav-main a.active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(12,110,145,.28);}
.header-cta{
 display:inline-flex;align-items:center;gap:6px;
 padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;
 color:#3a2600;background:var(--accent);white-space:nowrap;
 box-shadow:0 8px 18px rgba(245,183,62,.34);
 transition:transform .2s ease,box-shadow .2s ease;
}
.header-cta:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 12px 24px rgba(245,183,62,.42);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
/* ---------- cat hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.cat-hero::before{
 content:"";position:absolute;inset:0;
 background:url('/assets/images/backpic/back-4.webp') center/cover no-repeat;
 opacity:.5;
}
.cat-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(112deg,rgba(5,26,44,.96) 0%,rgba(8,52,80,.86) 48%,rgba(18,118,152,.55) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:58px 0 62px;}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center;}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 padding:6px 16px;border-radius:999px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
 font-size:13px;font-weight:600;letter-spacing:1px;color:#c9ecf8;
 margin-bottom:20px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.cat-title{
 font-size:clamp(27px,3.7vw,42px);
 line-height:1.24;color:#fff;letter-spacing:.4px;
 text-shadow:0 4px 24px rgba(0,20,38,.4);
}
.cat-lead{margin-top:18px;max-width:640px;font-size:15.5px;line-height:1.85;color:#cfe6f4;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:10px;font-size:15px;font-weight:700;
 border:1px solid transparent;cursor:pointer;min-height:44px;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(12,110,145,.30);}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 18px 34px rgba(12,110,145,.40);}
.btn-accent{background:var(--accent);color:#3a2600;box-shadow:0 12px 26px rgba(245,183,62,.36);}
.btn-accent:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 18px 34px rgba(245,183,62,.46);}
.btn-ghost{background:transparent;color:#bfe6f5;border-color:rgba(255,255,255,.38);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:rgba(13,122,158,.34);}
.btn-outline:hover{background:#eef8fc;color:var(--brand-800);transform:translateY(-2px);}
.check-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.check-item{
 display:inline-flex;align-items:center;gap:8px;
 padding:8px 14px;border-radius:999px;
 background:rgba(255,255,255,.10);
 border:1px solid rgba(255,255,255,.20);
 font-size:13px;font-weight:600;color:#d6ecf7;
}
.check-item svg{flex:0 0 15px;color:var(--accent);}
.hero-panel{
 background:rgba(255,255,255,.10);
 border:1px solid rgba(255,255,255,.22);
 border-radius:var(--radius-xl);
 padding:16px;
 box-shadow:0 24px 56px rgba(3,20,36,.34);
}
.hero-panel img{border-radius:16px;width:100%;height:238px;object-fit:cover;}
.hero-badges{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px;}
.hero-badge{
 padding:10px 8px;border-radius:12px;text-align:center;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
}
.hero-badge strong{display:block;font-size:17px;font-weight:800;color:#fff;line-height:1.25;}
.hero-badge span{font-size:11.5px;color:#a9cde0;letter-spacing:.3px;}
/* ---------- pill nav ---------- */
.pill-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;position:relative;z-index:5;}
.pill-track{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;}
.pill-track::-webkit-scrollbar{display:none;}
.pill{
 display:inline-flex;align-items:center;
 padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
 color:var(--muted);background:#f1f7fb;border:1px solid transparent;white-space:nowrap;
 transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.pill:hover{color:var(--brand-700);background:#e6f4fa;transform:translateY(-1px);}
.pill.is-active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(12,110,145,.26);}
/* ---------- sections ---------- */
.section{padding:66px 0;background:#fff;}
.section-alt{background:var(--bg);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:1.4px;color:var(--brand-600);
 text-transform:uppercase;margin-bottom:12px;
}
.section-kicker::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--accent);display:block;}
.section-title{font-size:clamp(21px,2.5vw,29px);}
.section-sub{margin-top:12px;font-size:14.8px;color:var(--muted);line-height:1.8;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.info-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3f3;}
.icon-box{
 width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
 background:var(--grad-soft);color:var(--brand-600);border:1px solid #d9ecf6;margin-bottom:16px;
}
.icon-box svg{width:21px;height:21px;}
.info-card h3{font-size:16.5px;margin-bottom:10px;}
.info-card p{font-size:14.4px;color:var(--muted);line-height:1.78;}
.card-fix{
 margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);
 font-size:13.6px;color:var(--brand-700);line-height:1.7;
}
.card-fix strong{color:var(--brand-800);}
/* scene cards */
.scene-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3f3;}
.scene-card img{width:100%;height:176px;object-fit:cover;border-radius:0;}
.scene-body{padding:20px 20px 22px;}
.scene-body h3{font-size:16.5px;margin-bottom:10px;}
.scene-body p{font-size:14.3px;color:var(--muted);line-height:1.78;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{
 display:inline-flex;align-items:center;
 padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
 color:var(--brand-700);background:#eef7fc;border:1px solid #d8ebf6;
}
/* steps */
.step-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step-item{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3f3;}
.step-num{
 display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
 background:var(--grad);color:#fff;font-size:15px;font-weight:800;margin-bottom:14px;
 box-shadow:0 8px 18px rgba(12,110,145,.24);
}
.step-item h3{font-size:16px;margin-bottom:9px;}
.step-item p{font-size:14.2px;color:var(--muted);line-height:1.76;}
/* stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
 background:var(--grad);color:#fff;border-radius:var(--radius-lg);padding:26px 22px;
 box-shadow:0 18px 38px rgba(8,48,78,.26);position:relative;overflow:hidden;
 transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 24px 48px rgba(8,48,78,.34);}
.stat-card::after{
 content:"";position:absolute;right:-30px;bottom:-40px;width:120px;height:120px;
 border-radius:50%;background:rgba(255,255,255,.08);
}
.stat-card strong{display:block;font-size:30px;font-weight:800;line-height:1.15;color:#fff;}
.stat-card span{display:block;margin-top:8px;font-size:13.4px;color:#c3e5f3;letter-spacing:.4px;}
/* quotes */
.quote-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3f3;}
.quote-card p{font-size:14.6px;color:var(--text);line-height:1.82;}
.quote-meta{display:flex;align-items:center;gap:11px;margin-top:16px;}
.quote-avatar{
 width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
 background:var(--grad-soft);border:1px solid #d8ebf6;color:var(--brand-700);font-weight:800;font-size:14px;
}
.quote-meta b{display:block;font-size:14px;color:var(--ink);}
.quote-meta em{font-style:normal;font-size:12.6px;color:var(--muted);}
/* audience */
.tag-list{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
 display:inline-flex;align-items:center;gap:8px;
 padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;
 color:var(--brand-800);background:#fff;border:1px solid var(--line);
 box-shadow:var(--shadow-sm);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tag:hover{transform:translateY(-2px);border-color:#bfdff2;box-shadow:var(--shadow-md);}
.tag i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
 display:flex;flex-direction:column;gap:10px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 20px;box-shadow:var(--shadow-sm);color:inherit;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe3f3;color:inherit;}
.news-cat{
 align-self:flex-start;padding:3px 11px;border-radius:999px;
 font-size:12px;font-weight:700;color:var(--brand-700);background:#eef7fc;border:1px solid #d8ebf6;
}
.news-card h3{font-size:15.8px;line-height:1.5;color:var(--ink);}
.news-card p{font-size:13.8px;color:var(--muted);line-height:1.72;}
.news-date{font-size:12.5px;color:#8aa0b8;letter-spacing:.3px;}
.empty-note{
 padding:26px 22px;border-radius:var(--radius-lg);background:#fff;
 border:1px dashed #cfe0ee;color:var(--muted);font-size:14.4px;
}
/* cta band */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:64px 0;}
.cta-band::before{
 content:"";position:absolute;inset:0;
 background:url('/assets/images/backpic/back-7.webp') center/cover no-repeat;opacity:.42;
}
.cta-band::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(105deg,rgba(5,26,44,.95) 0%,rgba(9,60,92,.82) 60%,rgba(20,120,156,.55) 100%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .65fr;gap:36px;align-items:center;}
.cta-inner h2{font-size:clamp(21px,2.6vw,30px);color:#fff;}
.cta-inner p{margin-top:14px;font-size:15px;color:#cfe6f4;line-height:1.82;max-width:640px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
/* footer */
.site-footer{background:#051f34;color:#a9c3d6;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.10);}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-desc{font-size:13.8px;line-height:1.85;color:#93b0c6;max-width:420px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.6px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{font-size:13.8px;color:#9db9cd;}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:22px;font-size:12.8px;color:#7e9bb0;}
.footer-bottom .sep{margin:0 8px;opacity:.6;}
/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:32px;}
 .hero-panel img{height:220px;}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .step-list{grid-template-columns:repeat(2,1fr);}
 .stat-grid{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .grid-3{grid-template-columns:repeat(2,1fr);}
 .cta-inner{grid-template-columns:1fr;}
 .cta-actions{flex-direction:row;flex-wrap:wrap;}
 .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:768px){
 .header-inner{height:60px;gap:10px;}
 .nav-toggle{display:flex;}
 .nav-main{
  display:none;position:absolute;top:calc(100% + 8px);left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:10px;box-shadow:var(--shadow-md);
 }
 .nav-main.open{display:flex;}
 .nav-main a{padding:11px 14px;border-radius:10px;min-height:44px;display:flex;align-items:center;}
 .header-cta{padding:8px 14px;font-size:13px;}
 .brand{font-size:15px;}
 .cat-hero-inner{padding:42px 0 48px;}
 .section{padding:48px 0;}
 .grid-4,.grid-3,.grid-2,.step-list,.stat-grid,.news-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .cta-band{padding:48px 0;}
}
@media screen and (max-width:520px){
 .container{padding:0 16px;}
 .header-cta{display:none;}
 .hero-badges{grid-template-columns:1fr;gap:8px;}
 .hero-badge{display:flex;align-items:center;justify-content:space-between;gap:10px;text-align:left;padding:9px 12px;}
 .hero-badge strong{font-size:15px;}
 .btn{width:100%;}
 .hero-actions{flex-direction:column;align-items:stretch;}
 .check-item{font-size:12.4px;padding:7px 12px;}
 .stat-card strong{font-size:26px;}
}

/* roulang page: article */
:root{
 --brand-900:#062a44;
 --brand-800:#083a5c;
 --brand-700:#0b5678;
 --brand-600:#0d7a9e;
 --brand-500:#12a3c4;
 --brand-400:#22c6de;
 --accent:#f5b73e;
 --accent-deep:#d9942a;
 --ink:#0a1a2f;
 --text:#16273f;
 --muted:#5f7290;
 --line:#e3ebf6;
 --bg:#f6f9fd;
 --white:#ffffff;
 --radius-xl:22px;
 --radius-lg:18px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(10,32,60,.05);
 --shadow-md:0 12px 30px rgba(10,32,60,.10);
 --shadow-lg:0 24px 56px rgba(8,38,68,.18);
 --grad:linear-gradient(135deg,#062a44 0%,#0b5678 52%,#17bcda 100%);
 --grad-soft:linear-gradient(135deg,#eaf6fb 0%,#f6fbff 100%);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:15px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md);}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-400);}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,summary:focus-visible,.pill:focus-visible{outline:3px solid rgba(34,198,222,.55);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:120;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(10,32,60,.10);}
.header-inner{position:relative;height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:800;color:var(--ink);letter-spacing:.4px;white-space:nowrap;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
 width:34px;height:34px;flex:0 0 34px;border-radius:11px;
 background:var(--grad);display:grid;place-items:center;
 color:#fff;font-size:15px;font-weight:800;
 box-shadow:0 8px 18px rgba(13,122,158,.32);
}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-main a{
 padding:8px 15px;border-radius:999px;font-size:14.5px;font-weight:600;
 color:var(--muted);transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-main a:hover{color:var(--brand-700);background:#eef6fb;}
.nav-main a.active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(12,110,145,.28);}
.header-cta{
 display:inline-flex;align-items:center;gap:6px;
 padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;
 color:#3a2600;background:var(--accent);white-space:nowrap;
 box-shadow:0 8px 18px rgba(245,183,62,.34);
 transition:transform .2s ease,box-shadow .2s ease;
}
.header-cta:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 12px 24px rgba(245,183,62,.42);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}

/* ---------- pill bar ---------- */
.pill-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;position:relative;z-index:5;}
.pill-track{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px;}
.pill-track::-webkit-scrollbar{display:none;}
.pill{
 display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
 padding:8px 16px;border-radius:999px;background:#f2f7fc;border:1px solid var(--line);
 color:var(--brand-800);font-size:14px;font-weight:600;min-height:40px;
 transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.pill:hover{background:#e6f4fb;border-color:#bfe0ee;color:var(--brand-700);transform:translateY(-1px);}
.pill.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(12,110,145,.24);}
.pill-accent{background:rgba(245,183,62,.18);border-color:rgba(245,183,62,.55);color:#7a5200;}
.pill-accent:hover{background:rgba(245,183,62,.28);color:#6b4700;border-color:rgba(245,183,62,.7);}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:10px;font-size:15px;font-weight:700;
 border:1px solid transparent;cursor:pointer;min-height:44px;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(12,110,145,.30);}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 18px 34px rgba(12,110,145,.40);}
.btn-accent{background:var(--accent);color:#3a2600;box-shadow:0 12px 26px rgba(245,183,62,.36);}
.btn-accent:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 18px 34px rgba(245,183,62,.46);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:rgba(13,122,158,.34);}
.btn-outline:hover{background:#eef8fc;color:var(--brand-800);transform:translateY(-2px);}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:54px 0 62px;}
.article-hero::before{
 content:"";position:absolute;inset:0;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 opacity:.42;
}
.article-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(115deg,rgba(5,26,44,.96) 0%,rgba(9,60,92,.88) 52%,rgba(18,163,196,.45) 100%);
}
.article-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#a9cde0;margin:0 0 18px;padding:0;list-style:none;}
.crumb a{color:#cfe6f4;font-weight:600;}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.45;}
.article-tag{
 display:inline-flex;align-items:center;gap:8px;
 padding:5px 14px;border-radius:999px;
 background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
 font-size:12.5px;font-weight:600;color:#d7f0fb;margin-bottom:16px;
}
.article-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}
.article-hero h1{
 font-size:clamp(26px,3.6vw,40px);
 line-height:1.32;
 margin:0;
 color:#fff;
 letter-spacing:.4px;
 text-shadow:0 4px 22px rgba(0,20,38,.35);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;font-size:13.5px;color:#a9cde0;}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta b{color:#eaf7fd;font-weight:700;}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.4);}

/* ---------- article layout ---------- */
.article-section{padding:52px 0 64px;background:var(--bg);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;}
.article-main{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
 box-shadow:var(--shadow-sm);padding:34px 36px 40px;
}
.article-lead{
 background:var(--grad-soft);border:1px solid #d9ecf6;border-radius:var(--radius-lg);
 padding:20px 22px;margin:0 0 26px;font-size:14.8px;line-height:1.85;color:#2b4258;
}
.article-lead strong{color:var(--brand-800);}
.article-body{font-size:15.5px;line-height:1.85;color:var(--text);}
.article-body h2{
 font-size:22px;line-height:1.45;margin:34px 0 14px;padding-left:14px;
 border-left:4px solid var(--brand-500);color:var(--ink);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:18px;line-height:1.5;margin:26px 0 10px;color:var(--brand-800);}
.article-body p{margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body img{margin:18px 0;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);}
.article-body blockquote{
 margin:20px 0;padding:16px 20px;background:var(--grad-soft);
 border-left:4px solid var(--brand-400);border-radius:0 var(--radius-md) var(--radius-md) 0;
 color:var(--brand-800);font-size:15px;
}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:18px 0;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;}
.article-body th{background:#f2f8fc;color:var(--brand-800);font-weight:700;}
.article-body a{color:var(--brand-600);text-decoration:underline;}
.article-empty{
 padding:38px 24px;text-align:center;border:1px dashed #cfe0ef;border-radius:var(--radius-lg);
 background:#fbfdff;
}
.article-empty h2{margin:0 0 10px;font-size:20px;color:var(--ink);}
.article-empty p{margin:0 0 20px;color:var(--muted);font-size:14.5px;}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:88px;display:grid;gap:20px;}
.side-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 22px 18px;box-shadow:var(--shadow-sm);
}
.side-card h3{
 margin:0 0 14px;font-size:16px;color:var(--ink);
 display:flex;align-items:center;gap:9px;line-height:1.4;
}
.side-card h3::before{content:"";width:8px;height:8px;border-radius:3px;background:var(--brand-500);display:block;flex:0 0 8px;}
.side-list{list-style:none;margin:0;padding:0;font-size:14px;}
.side-list li{padding:10px 0;border-bottom:1px dashed var(--line);color:var(--muted);line-height:1.7;}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{font-weight:700;color:var(--brand-700);}
.side-list a:hover{color:var(--brand-500);}
.side-note{font-size:13.6px;color:var(--muted);line-height:1.8;margin:0 0 14px;}
.side-card .btn{width:100%;}

/* ---------- generic 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:760px;margin-bottom:34px;}
.kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:1.4px;color:var(--brand-600);
 text-transform:uppercase;margin-bottom:12px;
}
.kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--accent);display:block;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.36;margin:0 0 12px;color:var(--ink);letter-spacing:.3px;}
.section-head p{margin:0;color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.info-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe6f3;}
.info-card .thumb{position:relative;overflow:hidden;background:var(--brand-800);}
.info-card img{width:100%;height:172px;object-fit:cover;border-radius:0;transition:transform .3s ease;}
.info-card:hover img{transform:scale(1.04);}
.info-card .body{padding:18px 20px 0;display:flex;flex-direction:column;height:100%;}
.info-card h3{margin:0 0 8px;font-size:17px;line-height:1.5;color:var(--ink);}
.info-card p{margin:0 0 14px;font-size:14px;color:var(--muted);line-height:1.78;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding:0 20px 20px;}
.tag{
 font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;
 background:#eef7fc;color:var(--brand-700);border:1px solid #d8ecf6;
}

/* ---------- stat badges ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-badge{
 position:relative;overflow:hidden;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 20px;text-align:center;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-badge:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe6f3;}
.stat-badge::after{
 content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;
 background:radial-gradient(circle,rgba(34,198,222,.20),transparent 70%);
}
.stat-badge b{display:block;font-size:30px;line-height:1.15;font-weight:800;color:var(--brand-700);margin-bottom:6px;}
.stat-badge span{font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- steps ---------- */
.step-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.step-item{
 display:flex;gap:16px;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe6f3;}
.step-num{
 flex:0 0 42px;width:42px;height:42px;border-radius:12px;
 background:var(--grad);color:#fff;display:grid;place-items:center;
 font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(12,110,145,.26);
}
.step-item h3{margin:0 0 8px;font-size:16.5px;color:var(--ink);line-height:1.5;}
.step-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 padding:0 22px;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#cfe6f3;box-shadow:var(--shadow-md);}
.faq-item summary{
 cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
 padding:17px 0;min-height:44px;font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand-500);line-height:1;transition:color .2s ease;
}
.faq-item[open] summary::after{content:"−";color:var(--accent-deep);}
.faq-item p{margin:0 0 18px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- channel matrix ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.channel-card{
 display:flex;flex-direction:column;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 24px;box-shadow:var(--shadow-sm);color:var(--text);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.channel-card:hover{
 transform:translateY(-4px);box-shadow:var(--shadow-md);
 border-color:#bfe0ee;background:#fbfdff;color:var(--text);
}
.channel-card .cn{font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--brand-500);margin-bottom:10px;}
.channel-card h3{margin:0 0 10px;font-size:18px;color:var(--ink);line-height:1.45;}
.channel-card p{margin:0 0 18px;font-size:14px;color:var(--muted);line-height:1.8;}
.channel-card .more{font-size:13.5px;font-weight:700;color:var(--brand-600);margin-top:auto;}
.channel-card:hover .more{color:var(--brand-500);}

/* ---------- note list ---------- */
.note-list{list-style:none;margin:0;padding:0;display:grid;gap:16px;}
.note-item{
 display:grid;grid-template-columns:76px minmax(0,1fr);gap:20px;align-items:start;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.note-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfe6f3;}
.note-index{
 font-size:22px;font-weight:800;color:var(--brand-400);line-height:1.2;letter-spacing:1px;
}
.note-item h3{margin:0 0 6px;font-size:16.5px;color:var(--ink);line-height:1.5;}
.note-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- cta band ---------- */
.cta-band{
 background:var(--grad);border-radius:var(--radius-xl);padding:44px 40px;
 color:#fff;box-shadow:var(--shadow-lg);
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
 position:relative;overflow:hidden;
}
.cta-band::after{
 content:"";position:absolute;right:-60px;bottom:-90px;width:260px;height:260px;border-radius:50%;
 background:radial-gradient(circle,rgba(245,183,62,.30),transparent 70%);
}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px;}
.cta-band h2{margin:0 0 10px;font-size:clamp(21px,2.4vw,27px);color:#fff;line-height:1.4;}
.cta-band p{margin:0;font-size:14.5px;color:#cfe6f4;line-height:1.8;}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- footer ---------- */
.site-footer{background:#061f34;color:#c6dced;margin-top:0;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;padding-bottom:34px;border-top:1px solid rgba(255,255,255,.12);padding-top:38px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-desc{margin:0;font-size:14px;line-height:1.85;color:#93b3cb;max-width:420px;}
.footer-col h4{margin:0 0 14px;font-size:14.5px;color:#fff;letter-spacing:.5px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#93b3cb;font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
 border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
 font-size:13px;color:#7d9db6;
}
.footer-bottom .sep{margin:0 8px;opacity:.6;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .article-layout{grid-template-columns:1fr;gap:26px;}
 .article-side{position:static;grid-template-columns:repeat(2,1fr);}
 .card-grid,.channel-grid{grid-template-columns:repeat(2,1fr);}
 .stat-strip{grid-template-columns:repeat(2,1fr);}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .article-main{padding:30px 28px 34px;}
}
@media (max-width:900px){
 .nav-main{
  display:none;position:absolute;top:64px;left:0;right:0;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 16px 30px rgba(10,32,60,.12);
  flex-direction:column;align-items:stretch;gap:4px;padding:12px 18px 18px;
 }
 .nav-main.is-open{display:flex;}
 .nav-main a{padding:12px 14px;border-radius:10px;font-size:15px;}
 .nav-toggle{display:flex;}
 .header-cta{display:none;}
}
@media (max-width:768px){
 .section{padding:48px 0;}
 .article-section{padding:40px 0 52px;}
 .article-hero{padding:44px 0 50px;}
 .article-main{padding:24px 20px 28px;}
 .article-side{grid-template-columns:1fr;}
 .step-list{grid-template-columns:1fr;}
 .note-item{grid-template-columns:1fr;gap:10px;}
 .cta-band{padding:32px 24px;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
 .article-body h2{font-size:20px;}
}
@media (max-width:520px){
 .container{padding:0 18px;}
 .card-grid,.channel-grid,.stat-strip{grid-template-columns:1fr;}
 .brand{font-size:15px;}
 .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:13px;}
 .article-hero h1{font-size:24px;}
 .info-card img{height:158px;}
 .btn{width:100%;}
 .cta-band .cta-actions{width:100%;}
}

/* roulang page: category2 */
:root{
 --brand-900:#062a44;
 --brand-800:#083a5c;
 --brand-700:#0b5678;
 --brand-600:#0d7a9e;
 --brand-500:#12a3c4;
 --brand-400:#22c6de;
 --accent:#f5b73e;
 --accent-deep:#d9942a;
 --ink:#0a1a2f;
 --text:#16273f;
 --muted:#5f7290;
 --line:#e3ebf6;
 --bg:#f6f9fd;
 --white:#ffffff;
 --radius-xl:22px;
 --radius-lg:18px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(10,32,60,.05);
 --shadow-md:0 12px 30px rgba(10,32,60,.10);
 --shadow-lg:0 24px 56px rgba(8,38,68,.18);
 --grad:linear-gradient(135deg,#062a44 0%,#0b5678 52%,#17bcda 100%);
 --grad-soft:linear-gradient(135deg,#eaf6fb 0%,#f6fbff 100%);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:15px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border-radius:var(--radius-md);}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-400);}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(34,198,222,.55);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:120;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(10,32,60,.10);}
.header-inner{position:relative;height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:800;color:var(--ink);letter-spacing:.4px;white-space:nowrap;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
 width:34px;height:34px;flex:0 0 34px;border-radius:11px;
 background:var(--grad);display:grid;place-items:center;
 color:#fff;font-size:15px;font-weight:800;
 box-shadow:0 8px 18px rgba(13,122,158,.32);
}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-main a{
 padding:8px 15px;border-radius:999px;font-size:14.5px;font-weight:600;
 color:var(--muted);transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-main a:hover{color:var(--brand-700);background:#eef6fb;}
.nav-main a.active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(12,110,145,.28);}
.header-cta{
 display:inline-flex;align-items:center;gap:6px;
 padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;
 color:#3a2600;background:var(--accent);white-space:nowrap;
 box-shadow:0 8px 18px rgba(245,183,62,.34);
 transition:transform .2s ease,box-shadow .2s ease;
}
.header-cta:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 12px 24px rgba(245,183,62,.42);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:10px;font-size:15px;font-weight:700;
 border:1px solid transparent;cursor:pointer;min-height:44px;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(12,110,145,.30);}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 18px 34px rgba(12,110,145,.40);}
.btn-accent{background:var(--accent);color:#3a2600;box-shadow:0 12px 26px rgba(245,183,62,.36);}
.btn-accent:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 18px 34px rgba(245,183,62,.46);}
.btn-ghost{background:transparent;color:#bfe6f5;border-color:rgba(255,255,255,.38);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:rgba(13,122,158,.34);}
.btn-outline:hover{background:#eef8fc;color:var(--brand-800);transform:translateY(-2px);}
/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.page-hero::before{
 content:"";position:absolute;inset:0;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 opacity:.5;
}
.page-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(112deg,rgba(5,26,44,.96) 0%,rgba(8,52,80,.86) 48%,rgba(14,104,138,.56) 100%);
}
.hero-inner{position:relative;z-index:2;padding:64px 0 72px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 padding:6px 16px;border-radius:999px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
 font-size:13px;font-weight:600;letter-spacing:1px;color:#c9ecf8;
 margin-bottom:20px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.hero-title{
 font-size:clamp(28px,3.8vw,42px);
 line-height:1.24;color:#fff;letter-spacing:.5px;
 text-shadow:0 4px 24px rgba(0,20,38,.4);
}
.hero-title em{font-style:normal;color:var(--accent);}
.hero-lead{margin-top:18px;max-width:620px;font-size:15.5px;line-height:1.85;color:#cfe6f4;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;}
.hero-tags span{
 padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
 color:#bce4f3;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
}
.hero-cards{position:relative;display:grid;gap:16px;}
.hero-card{
 background:rgba(255,255,255,.97);
 color:var(--text);
 border-radius:var(--radius-lg);
 padding:20px 22px;
 border:1px solid rgba(255,255,255,.6);
 box-shadow:var(--shadow-lg);
}
.hero-card--main{transform:translateY(-10px);border-top:3px solid var(--accent);}
.hero-card--side{max-width:88%;box-shadow:var(--shadow-md);}
.hero-card--side:nth-child(2){justify-self:end;transform:translateY(-4px);}
.hero-card--side:nth-child(3){justify-self:start;transform:translateY(6px);}
.hero-card h3{font-size:14px;font-weight:800;color:var(--brand-800);letter-spacing:.6px;}
.hero-card p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:6px;}
.tier-row{display:flex;gap:8px;margin-top:14px;}
.tier-chip{
 flex:1;text-align:center;padding:9px 6px;border-radius:10px;
 background:var(--grad-soft);border:1px solid var(--line);
}
.tier-chip strong{display:block;font-size:15px;color:var(--brand-700);font-weight:800;}
.tier-chip span{font-size:11.5px;color:var(--muted);}
.badge-soft{
 display:inline-flex;align-items:center;gap:6px;
 padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700;
 color:var(--brand-700);background:#e9f6fb;border:1px solid #d3e9f3;
}
.badge-gold{color:#8a5b00;background:#fdf3dd;border:1px solid #f6e2b6;}
/* ---------- sections ---------- */
.section{padding:72px 0;}
.section--white{background:#fff;}
.section--soft{background:var(--grad-soft);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-bottom:34px;}
.section-title{
 font-size:clamp(21px,2.5vw,29px);line-height:1.35;color:var(--ink);font-weight:800;letter-spacing:.3px;
 display:flex;align-items:center;gap:12px;
}
.section-title::before{
 content:"";width:6px;height:26px;border-radius:4px;background:var(--grad);display:block;flex:0 0 6px;
}
.section-desc{max-width:640px;margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
/* ---------- cards ---------- */
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8e4f0;}
.card-num{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:var(--grad-soft);border:1px solid #d5eaf4;
 color:var(--brand-700);font-weight:800;font-size:14px;letter-spacing:.5px;
 margin-bottom:14px;
}
.card h3{font-size:16.5px;font-weight:800;color:var(--ink);line-height:1.45;}
.card p{margin-top:9px;font-size:14px;color:var(--muted);line-height:1.8;}
.card-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px;}
.tag{
 display:inline-block;padding:3px 10px;border-radius:999px;
 font-size:12px;font-weight:600;color:var(--brand-700);
 background:#eef7fb;border:1px solid #dbeef7;
}
/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center;}
.split-figure{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);}
.split-figure img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-xl);}
.split-figure figcaption{
 position:absolute;left:16px;right:16px;bottom:16px;
 padding:14px 18px;border-radius:var(--radius-md);
 background:rgba(6,42,68,.86);color:#d5ecf7;font-size:13px;line-height:1.7;
 backdrop-filter:blur(4px);
}
.split-figure figcaption strong{color:var(--accent);}
.check-list li{
 position:relative;padding-left:30px;margin-bottom:16px;
 font-size:14.5px;color:var(--text);line-height:1.8;
}
.check-list li::before{
 content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
 background:var(--grad);box-shadow:0 4px 10px rgba(13,122,158,.28);
}
.check-list li strong{color:var(--brand-800);}
.check-list li span{display:block;color:var(--muted);font-size:13.5px;margin-top:2px;}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
.step{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px 20px 20px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.step::before{
 counter-increment:step;content:"0" counter(step);
 display:block;font-size:13px;font-weight:800;color:var(--brand-500);letter-spacing:1.5px;margin-bottom:10px;
}
.step h3{font-size:15.5px;font-weight:800;color:var(--ink);}
.step p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.8;}
/* ---------- mistakes ---------- */
.mistake{
 display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center;
 padding:18px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 box-shadow:var(--shadow-sm);margin-bottom:14px;
}
.mistake .wrong{font-size:14px;color:#8b5460;line-height:1.75;}
.mistake .wrong b{display:inline-block;font-size:12px;color:#a2565f;background:#fdeef0;border-radius:999px;padding:2px 9px;margin-right:8px;}
.mistake .arrow{color:var(--brand-400);font-weight:800;font-size:16px;}
.mistake .right{font-size:14px;color:var(--text);line-height:1.75;}
.mistake .right b{display:inline-block;font-size:12px;color:var(--brand-700);background:#eaf6fb;border-radius:999px;padding:2px 9px;margin-right:8px;}
/* ---------- metrics ---------- */
.metrics{
 display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
 background:var(--grad);border-radius:var(--radius-xl);padding:34px 30px;
 box-shadow:var(--shadow-md);
}
.metric{color:#fff;text-align:center;padding:6px 4px;}
.metric strong{display:block;font-size:30px;font-weight:800;line-height:1.2;letter-spacing:.5px;}
.metric strong small{font-size:14px;font-weight:700;margin-left:2px;color:#bfe6f5;}
.metric span{display:block;margin-top:8px;font-size:13px;color:#b6d9ea;}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 box-shadow:var(--shadow-sm);overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#bfe0ee;box-shadow:var(--shadow-md);}
.faq-item summary{
 cursor:pointer;list-style:none;padding:18px 22px;
 font-size:15px;font-weight:700;color:var(--ink);
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand-500);line-height:1;flex:0 0 auto;
 transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.85;}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px;box-shadow:var(--shadow-sm);height:100%;
 display:flex;flex-direction:column;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8e4f0;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;font-size:12.5px;color:var(--muted);}
.news-card h3{font-size:15.5px;font-weight:800;line-height:1.55;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--brand-600);}
.news-card p{margin-top:9px;font-size:13.5px;color:var(--muted);line-height:1.8;}
.news-empty{
 padding:30px 24px;border:1px dashed #cfe4ef;border-radius:var(--radius-md);
 background:#fbfdff;color:var(--muted);font-size:14px;text-align:center;
}
/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 background:var(--grad);color:#fff;padding:46px 44px;
 display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
 box-shadow:var(--shadow-md);
}
.cta-band::before{
 content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,255,255,.18),rgba(255,255,255,0) 70%);
}
.cta-band h2{font-size:clamp(20px,2.4vw,27px);font-weight:800;line-height:1.4;position:relative;}
.cta-band p{margin-top:10px;font-size:14.5px;color:#cfe6f4;max-width:620px;line-height:1.8;position:relative;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;}
/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#b9d3e2;padding:56px 0 26px;margin-top:10px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:38px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;letter-spacing:.4px;}
.footer-desc{margin-top:14px;font-size:13.5px;line-height:1.85;color:#9fc0d3;max-width:420px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.6px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{font-size:13.5px;color:#a8c8db;}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 padding-top:20px;font-size:12.5px;color:#89adc2;
}
.footer-bottom .sep{margin:0 8px;color:#4d7b96;}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:34px;}
 .hero-card--side{max-width:100%;}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .steps{grid-template-columns:repeat(2,1fr);}
 .metrics{grid-template-columns:repeat(2,1fr);}
 .split{grid-template-columns:1fr;gap:30px;}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:900px){
 .header-cta{display:none;}
 .nav-toggle{display:flex;}
 .nav-main{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;padding:12px 20px 18px;
  border-bottom:1px solid var(--line);
  box-shadow:0 16px 30px rgba(10,32,60,.12);
  display:none;
 }
 .nav-main.is-open{display:flex;}
 .nav-main a{padding:12px 14px;border-radius:10px;font-size:15px;}
 .section{padding:54px 0;}
 .grid-3{grid-template-columns:1fr;}
 .mistake{grid-template-columns:1fr;gap:8px;}
 .mistake .arrow{display:none;}
 .cta-band{padding:34px 26px;}
}
@media (max-width:520px){
 .container{padding:0 18px;}
 .hero-inner{padding:44px 0 52px;}
 .hero-title{font-size:26px;}
 .grid-4{grid-template-columns:1fr;}
 .news-grid{grid-template-columns:1fr;}
 .steps{grid-template-columns:1fr;}
 .metrics{grid-template-columns:1fr;padding:26px 20px;}
 .footer-grid{grid-template-columns:1fr;}
 .hero-card{padding:16px 18px;}
 .btn{width:100%;}
 .hero-actions .btn{width:auto;}
}

/* roulang page: category3 */
:root{
 --brand-900:#062a44;
 --brand-800:#083a5c;
 --brand-700:#0b5678;
 --brand-600:#0d7a9e;
 --brand-500:#12a3c4;
 --brand-400:#22c6de;
 --accent:#f5b73e;
 --accent-deep:#d9942a;
 --ink:#0a1a2f;
 --text:#16273f;
 --muted:#5f7290;
 --line:#e3ebf6;
 --bg:#f6f9fd;
 --white:#ffffff;
 --radius-xl:22px;
 --radius-lg:18px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-sm:0 2px 8px rgba(10,32,60,.05);
 --shadow-md:0 12px 30px rgba(10,32,60,.10);
 --shadow-lg:0 24px 56px rgba(8,38,68,.18);
 --grad:linear-gradient(135deg,#062a44 0%,#0b5678 52%,#17bcda 100%);
 --grad-soft:linear-gradient(135deg,#eaf6fb 0%,#f6fbff 100%);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--text);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md);}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-400);}
button{font-family:inherit;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{color:var(--ink);font-weight:800;line-height:1.32;}
ul{list-style:none;margin:0;padding:0;}
a:focus-visible,button:focus-visible,summary:focus-visible,.pill:focus-visible{
 outline:3px solid rgba(34,198,222,.55);outline-offset:3px;border-radius:8px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:120;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(10,32,60,.10);}
.header-inner{position:relative;height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:800;color:var(--ink);letter-spacing:.4px;white-space:nowrap;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
 width:34px;height:34px;flex:0 0 34px;border-radius:11px;
 background:var(--grad);display:grid;place-items:center;
 color:#fff;font-size:15px;font-weight:800;
 box-shadow:0 8px 18px rgba(13,122,158,.32);
}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-main a{
 padding:8px 15px;border-radius:999px;font-size:14.5px;font-weight:600;
 color:var(--muted);transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-main a:hover{color:var(--brand-700);background:#eef6fb;}
.nav-main a.active{color:#fff;background:var(--grad);box-shadow:0 8px 18px rgba(12,110,145,.28);}
.header-cta{
 display:inline-flex;align-items:center;gap:6px;
 padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;
 color:#3a2600;background:var(--accent);white-space:nowrap;
 box-shadow:0 8px 18px rgba(245,183,62,.34);
 transition:transform .2s ease,box-shadow .2s ease;
}
.header-cta:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 12px 24px rgba(245,183,62,.42);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
 background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.page-hero::before{
 content:"";position:absolute;inset:0;
 background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
 opacity:.5;
}
.page-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(112deg,rgba(5,26,44,.96) 0%,rgba(8,52,80,.86) 48%,rgba(14,104,138,.56) 100%);
}
.hero-grid{
 position:relative;z-index:2;
 display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
 padding:70px 0 66px;
}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 padding:6px 16px;border-radius:999px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
 font-size:13px;font-weight:600;letter-spacing:1px;color:#c9ecf8;
 margin-bottom:20px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.hero-title{
 font-size:clamp(29px,3.8vw,42px);
 line-height:1.24;color:#fff;letter-spacing:.5px;
 text-shadow:0 4px 24px rgba(0,20,38,.4);
}
.hero-lead{margin-top:18px;max-width:640px;font-size:15.5px;line-height:1.86;color:#cfe6f4;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
 padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
 background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);color:#d6eef9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-panel{
 background:rgba(255,255,255,.10);
 border:1px solid rgba(255,255,255,.20);
 border-radius:var(--radius-xl);
 padding:18px;
 backdrop-filter:blur(8px);
 box-shadow:0 24px 56px rgba(2,18,34,.34);
}
.hero-panel img{width:100%;height:186px;object-fit:cover;border-radius:var(--radius-md);}
.hero-panel-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:16px 4px 12px;}
.hero-panel-title strong{font-size:15px;color:#fff;font-weight:800;}
.hero-panel-title em{font-style:normal;font-size:12px;color:#9dc8dd;}
.badge-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
.data-badge{
 background:rgba(255,255,255,.10);
 border:1px solid rgba(255,255,255,.18);
 border-radius:var(--radius-sm);
 padding:10px 10px 11px;text-align:center;
}
.data-badge b{display:block;font-size:20px;font-weight:800;color:var(--accent);line-height:1.3;}
.data-badge span{font-size:12px;color:#a9cde0;}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:10px;font-size:15px;font-weight:700;
 border:1px solid transparent;cursor:pointer;min-height:44px;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(12,110,145,.30);}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 18px 34px rgba(12,110,145,.40);}
.btn-accent{background:var(--accent);color:#3a2600;box-shadow:0 12px 26px rgba(245,183,62,.36);}
.btn-accent:hover{transform:translateY(-2px);color:#3a2600;box-shadow:0 18px 34px rgba(245,183,62,.46);}
.btn-ghost{background:transparent;color:#bfe6f5;border-color:rgba(255,255,255,.38);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:rgba(13,122,158,.34);}
.btn-outline:hover{background:#eef8fc;color:var(--brand-800);transform:translateY(-2px);}

/* ---------- pill channel bar ---------- */
.pill-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;position:relative;z-index:6;}
.pill-track{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;}
.pill-track::-webkit-scrollbar{display:none;}
.pill{
 display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
 padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;
 color:var(--muted);background:#f2f7fc;border:1px solid var(--line);
 transition:color .2s ease,background .2s ease,box-shadow .2s ease,transform .2s ease;
}
.pill:hover{color:var(--brand-700);background:#e8f4fb;transform:translateY(-2px);}
.pill.is-active{color:#fff;background:var(--grad);border-color:transparent;box-shadow:0 10px 22px rgba(12,110,145,.26);}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}

/* ---------- sections ---------- */
.section{padding:64px 0;}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section.soft{background:var(--grad-soft);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head .kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:1.5px;color:var(--brand-600);
 text-transform:uppercase;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--accent);display:block;}
.section-head h2{font-size:clamp(22px,2.4vw,29px);letter-spacing:.3px;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}

.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2f0;}
.card h3{font-size:17px;margin-bottom:10px;}
.card p{color:var(--muted);font-size:14.5px;line-height:1.8;}
.card .card-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.card-ico{
 width:40px;height:40px;border-radius:12px;flex:0 0 40px;
 background:var(--grad-soft);border:1px solid #d5e9f4;
 display:grid;place-items:center;color:var(--brand-700);font-size:13px;font-weight:800;
}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:#eaf6fb;color:var(--brand-700);border:1px solid #d5e9f4;
}
.tag.warm{background:#fdf3e0;color:var(--accent-deep);border-color:#f6e2b8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* boss cards */
.boss-card{overflow:hidden;padding:0;}
.boss-card img{width:100%;height:168px;object-fit:cover;border-radius:0;}
.boss-body{padding:20px 22px 22px;}
.boss-body h3{font-size:17.5px;}
.boss-body p{color:var(--muted);font-size:14.5px;margin-top:8px;}
.boss-facts{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap;}
.fact{
 flex:1 1 88px;padding:9px 11px;border-radius:var(--radius-sm);
 background:#f5fafd;border:1px solid var(--line);text-align:center;
}
.fact b{display:block;font-size:15px;color:var(--brand-700);font-weight:800;}
.fact span{font-size:11.5px;color:var(--muted);}

/* steps */
.step-list{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step{
 position:relative;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:24px 20px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.step-num{
 width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
 background:var(--grad);color:#fff;font-weight:800;font-size:15px;
 box-shadow:0 8px 18px rgba(12,110,145,.26);margin-bottom:14px;
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:14px;line-height:1.78;}

/* fix cards */
.fix-card{border-left:4px solid var(--accent);}
.fix-card h3{display:flex;align-items:center;gap:10px;font-size:16.5px;}
.fix-card .fix-label{
 font-size:12px;font-weight:700;color:#a5432f;background:#fdeeea;
 border:1px solid #f7d6cd;border-radius:999px;padding:3px 10px;
}
.fix-card .solve{
 margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);
 font-size:14px;color:var(--text);
}
.fix-card .solve b{color:var(--brand-700);}

/* table */
.table-wrap{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow:auto;
}
table.cannon-table{width:100%;border-collapse:collapse;min-width:640px;}
table.cannon-table th,table.cannon-table td{
 padding:15px 18px;text-align:left;font-size:14.5px;
 border-bottom:1px solid var(--line);vertical-align:middle;
}
table.cannon-table th{
 background:#f1f8fc;color:var(--brand-800);font-weight:800;font-size:13.5px;
 letter-spacing:.4px;white-space:nowrap;
}
table.cannon-table td{color:var(--text);}
table.cannon-table td strong{color:var(--brand-700);}
table.cannon-table tbody tr:last-child td{border-bottom:none;}
table.cannon-table tbody tr:hover{background:#f9fdff;}

/* metric band */
.metric-band{background:var(--grad);color:#fff;border-radius:var(--radius-xl);padding:36px 32px;box-shadow:var(--shadow-lg);}
.metric-band h2{color:#fff;font-size:clamp(21px,2.2vw,26px);}
.metric-band .lead{color:#c8e6f4;margin-top:10px;max-width:720px;font-size:14.5px;}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px;}
.metric{
 background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
 border-radius:var(--radius-md);padding:18px;
}
.metric b{display:block;font-size:26px;font-weight:800;color:var(--accent);line-height:1.2;}
.metric span{font-size:13px;color:#bfe0ef;}
.metric small{display:block;margin-top:8px;font-size:12px;color:#9dc8dd;line-height:1.6;}

/* quotes */
.quote-card{position:relative;padding-top:26px;}
.quote-card::before{
 content:"“";position:absolute;top:2px;left:20px;font-size:44px;line-height:1;
 color:#d8ecf6;font-family:Georgia,serif;
}
.quote-card p{color:var(--text);font-size:14.5px;}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--muted);}
.quote-meta .avatar{
 width:32px;height:32px;border-radius:50%;background:var(--grad);
 display:grid;place-items:center;color:#fff;font-size:12.5px;font-weight:800;
}

/* fit list */
.fit-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.fit-item{
 display:flex;gap:14px;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-md);padding:18px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.fit-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.fit-item .fit-ico{
 width:36px;height:36px;flex:0 0 36px;border-radius:10px;
 background:var(--grad-soft);border:1px solid #d5e9f4;
 display:grid;place-items:center;color:var(--brand-700);font-size:13px;font-weight:800;
}
.fit-item h3{font-size:15.5px;margin-bottom:6px;}
.fit-item p{color:var(--muted);font-size:14px;line-height:1.76;}

/* news list */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
 display:flex;flex-direction:column;gap:10px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:22px;box-shadow:var(--shadow-sm);color:var(--text);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9e2f0;color:var(--text);}
.news-card h3{font-size:16px;line-height:1.5;}
.news-card p{color:var(--muted);font-size:14px;line-height:1.76;}
.news-card .news-time{font-size:12.5px;color:#8ba0b9;margin-top:auto;}
.news-tag{
 align-self:flex-start;padding:4px 12px;border-radius:999px;
 font-size:12px;font-weight:700;background:#eaf6fb;color:var(--brand-700);
 border:1px solid #d5e9f4;
}
.empty-tip{
 grid-column:1/-1;padding:28px;border:1px dashed var(--line);border-radius:var(--radius-md);
 background:#fff;color:var(--muted);font-size:14px;
}
.more-row{display:flex;justify-content:center;margin-top:32px;}

/* faq */
.faq{display:grid;gap:14px;max-width:920px;}
.faq details{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 padding:18px 22px;box-shadow:var(--shadow-sm);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details:hover{border-color:#c9e2f0;box-shadow:var(--shadow-md);}
.faq details[open]{border-color:#bfe0ef;}
.faq summary{
 cursor:pointer;font-weight:800;font-size:15.5px;color:var(--ink);
 list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand-500);line-height:1;
 transition:transform .2s ease;
}
.faq details[open] summary::after{content:"–";}
.faq p{margin-top:12px;color:var(--muted);font-size:14.5px;line-height:1.82;}

/* cta band */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 background:var(--brand-900);color:#fff;padding:44px 40px;
 box-shadow:var(--shadow-lg);
}
.cta-band::before{
 content:"";position:absolute;inset:0;
 background:url('/assets/images/backpic/back-6.webp') center/cover no-repeat;opacity:.32;
}
.cta-band::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(110deg,rgba(5,26,44,.94) 0%,rgba(11,86,120,.78) 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(21px,2.3vw,27px);}
.cta-inner p{margin-top:10px;color:#c8e6f4;font-size:14.5px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* footer */
.site-footer{background:var(--brand-900);color:#c3d8e6;padding:52px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.85;color:#9db9cd;max-width:420px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{color:#a9c4d6;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:#8aa7bd;
}
.footer-bottom .sep{margin:0 8px;opacity:.6;}

/* responsive */
@media screen and (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:32px;padding:56px 0 52px;}
 .hero-panel{max-width:560px;}
 .grid-3,.news-grid{grid-template-columns:repeat(2,1fr);}
 .step-list{grid-template-columns:repeat(2,1fr);}
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .grid-4{grid-template-columns:repeat(2,1fr);}
 .nav-main{display:none;}
 .nav-toggle{display:flex;}
 .nav-main.is-open{
  display:flex;flex-direction:column;align-items:stretch;gap:4px;
  position:absolute;top:64px;left:0;right:0;
  background:#fff;border-bottom:1px solid var(--line);
  padding:14px 20px 20px;box-shadow:0 18px 32px rgba(10,32,60,.12);
 }
 .nav-main.is-open a{padding:12px 14px;border-radius:10px;font-size:15px;}
 .header-cta{display:none;}
}
@media screen and (max-width:768px){
 .section{padding:48px 0;}
 .grid-3,.grid-2,.grid-4,.news-grid,.step-list,.fit-list,.metric-grid{grid-template-columns:1fr;}
 .hero-panel img{height:170px;}
 .badge-row{grid-template-columns:repeat(3,1fr);}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .brand{font-size:15px;}
 .cta-band{padding:32px 24px;}
 .metric-band{padding:28px 22px;}
}
@media screen and (max-width:520px){
 .container{padding:0 16px;}
 .hero-grid{padding:44px 0 40px;}
 .hero-title{font-size:26px;}
 .hero-lead{font-size:14.5px;}
 .btn{width:100%;}
 .hero-actions{gap:10px;}
 .badge-row{grid-template-columns:1fr;}
 .data-badge{display:flex;align-items:center;justify-content:space-between;text-align:left;gap:8px;}
 .footer-bottom{font-size:12px;}
}