/* roulang page: index */
:root{
  --ink:#13211f;
  --ink-soft:#3c5350;
  --muted:#6b7d7b;
  --brand:#0f5f56;
  --brand-dark:#0a4038;
  --brand-soft:#e6f2ef;
  --accent:#c9902e;
  --accent-dark:#a97518;
  --accent-soft:#fbf2e0;
  --bg:#f6f8f6;
  --surface:#ffffff;
  --line:#e0e7e3;
  --line-strong:#cdd8d3;
  --radius-lg:18px;
  --radius:13px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(14,44,40,.05), 0 6px 18px rgba(14,44,40,.05);
  --shadow-md:0 12px 30px rgba(14,44,40,.10);
  --shadow-lg:0 22px 48px rgba(14,44,40,.16);
  --container:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;color:var(--ink);letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(201,144,46,.55);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-md);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand),#09483f);
  color:#fff;font-weight:800;font-size:17px;letter-spacing:0;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(15,95,86,.25);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;}
.topbar-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;align-items:center;gap:6px;
  background:var(--brand-soft);border:1px solid var(--line-strong);
  color:var(--brand-dark);font-size:14px;font-weight:600;
  padding:8px 13px;border-radius:10px;cursor:pointer;
  min-height:40px;transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:#d9ece8;}
.nav-toggle:active{transform:translateY(1px);}

.channelbar{background:var(--surface);border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;min-height:50px;}
.channel-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:6px 0;scrollbar-width:none;}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
  display:inline-block;white-space:nowrap;
  padding:7px 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-soft);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.channel-tab:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.channel-tab.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(15,95,86,.24);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1.2;
  padding:12px 22px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:17px;}
.btn-primary{
  background:linear-gradient(180deg,#d8a341,var(--accent));
  color:#241a05;box-shadow:0 10px 22px rgba(201,144,46,.30);
}
.btn-primary:hover{background:linear-gradient(180deg,#e0b055,var(--accent-dark));color:#1d1403;transform:translateY(-2px);box-shadow:0 14px 28px rgba(201,144,46,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(201,144,46,.3);}
.btn-outline-light{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.42);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.65);transform:translateY(-2px);}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink-soft);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:#0b2a27 url('/assets/images/9c10ef46e6e6ba7b.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(7,33,30,.95) 0%,rgba(7,33,30,.86) 46%,rgba(9,40,36,.55) 100%);
}
.hero-inner{position:relative;padding:72px 0 54px;max-width:900px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:#f0d9a8;background:rgba(255,255,255,.1);
  border:1px solid rgba(240,217,168,.35);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.hero-title{font-size:40px;line-height:1.26;font-weight:800;color:#fff;letter-spacing:.4px;}
.hero-title .hl{color:#f0c46b;}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:760px;}
.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 26px;margin-top:28px;max-width:800px;}
.hero-point{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.9);}
.hero-point i{color:#f0c46b;font-size:17px;line-height:1.65;flex:0 0 auto;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-bar{
  position:relative;margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.18);
  display:flex;flex-wrap:wrap;gap:10px 26px;
  font-size:13.5px;color:rgba(255,255,255,.74);
}
.trust-bar span{display:inline-flex;align-items:center;gap:7px;}
.trust-bar i{color:#8fd0c2;font-size:15px;}

/* ---------- sections ---------- */
.section{padding:74px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:38px;}
.kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px;}
.section-title{font-size:29px;letter-spacing:.4px;}
.section-desc{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- stats ---------- */
.stats-strip{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:26px 12px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;
  margin-top:-42px;position:relative;z-index:3;
}
.stat{text-align:center;padding:8px 12px;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat-num{font-size:28px;font-weight:800;color:var(--brand-dark);letter-spacing:.5px;}
.stat-num span{font-size:15px;font-weight:700;color:var(--muted);margin-left:3px;}
.stat-label{margin-top:4px;font-size:13.5px;color:var(--muted);}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.icon-badge{
  width:46px;height:46px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:21px;margin-bottom:16px;
}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
}
.tag-gold{background:var(--accent-soft);color:#8a5d0c;}
.tag-line{background:#fff;border:1px solid var(--line-strong);color:var(--muted);}

/* ---------- ladder ---------- */
.ladder{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.ladder-step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px 24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ladder-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand);}
.ladder-num{
  font-size:13px;font-weight:800;letter-spacing:1px;color:var(--accent-dark);
  background:var(--accent-soft);border-radius:8px;padding:3px 10px;display:inline-block;
}
.ladder-step h3{margin-top:14px;font-size:18px;}
.ladder-step p{margin-top:10px;font-size:14.5px;color:var(--ink-soft);line-height:1.8;}
.ladder-step ul{margin-top:14px;display:grid;gap:7px;}
.ladder-step li{font-size:13.5px;color:var(--muted);display:flex;gap:8px;align-items:flex-start;}
.ladder-step li i{color:var(--brand);font-size:14px;line-height:1.7;}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch;}
.plan{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.plan.featured{border:2px solid var(--brand);box-shadow:var(--shadow-md);position:relative;}
.plan-flag{
  position:absolute;top:-13px;left:26px;
  background:var(--brand);color:#fff;font-size:12.5px;font-weight:700;
  padding:4px 12px;border-radius:999px;letter-spacing:.5px;
}
.plan h3{font-size:19px;}
.plan-sub{margin-top:8px;font-size:13.5px;color:var(--muted);}
.plan-list{margin-top:20px;display:grid;gap:11px;flex:1;}
.plan-list li{display:flex;gap:9px;font-size:14px;color:var(--ink-soft);line-height:1.7;}
.plan-list i{color:var(--brand);font-size:15px;line-height:1.7;flex:0 0 auto;}
.plan-target{margin-top:20px;padding-top:16px;border-top:1px dashed var(--line-strong);font-size:13.5px;color:var(--muted);}

/* ---------- timed ---------- */
.timed{
  background:linear-gradient(120deg,#0f4c45,#0a3330);
  border-radius:var(--radius-lg);color:#fff;padding:40px 36px;
  display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;
  box-shadow:var(--shadow-md);
}
.timed-body{max-width:640px;}
.timed-body h3{color:#fff;font-size:22px;}
.timed-body p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.8);line-height:1.85;}
.timed-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.timed-meta span{
  font-size:13px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#f2e7cf;
}
.timed-clock{text-align:right;flex:0 0 auto;}
.timed-clock .big{font-size:30px;font-weight:800;color:#f0c46b;letter-spacing:1px;}
.timed-clock .small{font-size:13px;color:rgba(255,255,255,.7);margin-top:4px;}

/* ---------- hot list ---------- */
.hot-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;}
.hot-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 26px;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.hot-item:last-child{border-bottom:none;}
.hot-item:hover{background:#fafcfb;}
.rank{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;color:var(--brand-dark);
  background:var(--brand-soft);
}
.hot-item:nth-child(1) .rank{background:var(--accent-soft);color:#8a5d0c;}
.hot-body h3{font-size:16.5px;}
.hot-body p{margin-top:6px;font-size:14px;color:var(--ink-soft);line-height:1.78;}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}

/* ---------- scenes ---------- */
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  height:100%;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.scene-body{padding:22px 22px 24px;}
.scene-body h3{font-size:17px;}
.scene-body p{margin-top:9px;font-size:14px;color:var(--ink-soft);line-height:1.78;}

/* ---------- quotes ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.quote{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.quote::before{
  content:"”";position:absolute;top:10px;right:20px;
  font-size:52px;line-height:1;color:rgba(15,95,86,.12);font-weight:800;
}
.quote p{font-size:14.5px;color:var(--ink-soft);line-height:1.85;}
.quote-meta{margin-top:18px;display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),#0a4a42);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;
}
.quote-name{font-size:14px;font-weight:700;color:var(--ink);}
.quote-role{font-size:12.5px;color:var(--muted);}

/* ---------- guarantee ---------- */
.guarantee{
  background:var(--brand-soft);border:1px solid #d5e8e3;border-radius:var(--radius-lg);
  padding:34px 30px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
}
.guarantee-item{display:flex;gap:13px;align-items:flex-start;}
.guarantee-item i{font-size:22px;color:var(--brand);line-height:1.4;}
.guarantee-item h4{font-size:15px;}
.guarantee-item p{margin-top:5px;font-size:13px;color:var(--ink-soft);line-height:1.7;}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:1.65fr 1fr;gap:28px;align-items:start;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong);color:inherit;}
.news-thumb{width:112px;height:80px;border-radius:10px;object-fit:cover;flex:0 0 auto;}
.news-body h3{font-size:16px;color:var(--ink);line-height:1.5;}
.news-body p{margin-top:7px;font-size:13.5px;color:var(--muted);line-height:1.72;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-date{margin-top:8px;font-size:12.5px;color:#8b9a98;display:inline-flex;align-items:center;gap:6px;}
.news-empty{
  background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--radius);
  padding:32px 24px;text-align:center;color:var(--muted);font-size:14px;
}
.news-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px 22px;box-shadow:var(--shadow-sm);}
.news-side h3{font-size:16px;margin-bottom:6px;}
.news-side .side-note{font-size:12.5px;color:var(--muted);margin-bottom:16px;}
.side-item{
  display:block;padding:13px 0;border-bottom:1px dashed var(--line);
  transition:padding-left .2s ease,color .2s ease;
}
.side-item:last-child{border-bottom:none;}
.side-item:hover{padding-left:6px;}
.side-item strong{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.6;}
.side-item span{display:block;margin-top:5px;font-size:12.5px;color:var(--muted);}
.side-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:13.5px;font-weight:700;color:var(--brand);
}
.side-more:hover{gap:10px;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:26px;}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand),#d7e3df);border-radius:2px;}
.timeline-item{position:relative;padding-bottom:26px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-26px;top:6px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
}
.timeline-date{font-size:12.5px;font-weight:700;letter-spacing:.6px;color:var(--accent-dark);}
.timeline-item h3{margin-top:6px;font-size:16px;}
.timeline-item p{margin-top:6px;font-size:14px;color:var(--ink-soft);line-height:1.78;}

/* ---------- channel wall ---------- */
.channel-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand);color:inherit;}
.channel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.channel-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.channel-body h3{font-size:17.5px;color:var(--ink);}
.channel-body p{margin-top:9px;font-size:14px;color:var(--ink-soft);line-height:1.78;flex:1;}
.channel-link{display:inline-flex;align-items:center;gap:7px;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand);}
.channel-card:hover .channel-link{gap:11px;color:var(--brand-dark);}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:#0a2e2a url('/assets/images/acb65a3fd6198d92.webp') center/cover no-repeat;
  color:#fff;padding:54px 44px;box-shadow:var(--shadow-lg);
}
.cta-panel::before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(7,32,29,.94),rgba(9,46,42,.72));}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;}
.cta-text{max-width:640px;}
.cta-text h2{color:#fff;font-size:27px;}
.cta-text p{margin-top:14px;font-size:15px;line-height:1.88;color:rgba(255,255,255,.82);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- footer ---------- */
.site-footer{background:#0d211f;color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.3px;}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:14px;letter-spacing:.5px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:#f0c46b;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom .tech{letter-spacing:.2px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-title{font-size:33px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guarantee{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-about{max-width:none;}
}
@media (max-width:860px){
  .grid-3,.quote-grid,.plans,.ladder{grid-template-columns:1fr;}
  .stats-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding:20px 8px;margin-top:-30px;}
  .stat{border-right:none;border-bottom:1px solid var(--line);padding:10px 8px;}
  .stat:nth-last-child(-n+2){border-bottom:none;}
  .cta-panel{padding:38px 26px;}
  .timed{padding:30px 24px;}
  .timed-clock{text-align:left;}
}
@media (max-width:768px){
  .nav-toggle{display:inline-flex;}
  .topbar-right .cta-top{display:none;}
  .channel-inner{flex-direction:column;align-items:stretch;padding:8px 0;}
  .channel-tabs{display:none;flex-direction:column;width:100%;padding:8px 0 12px;overflow:visible;}
  .channelbar.open .channel-tabs{display:flex;}
  .channel-tab{width:100%;padding:11px 16px;border-radius:10px;background:#f2f6f4;}
  .channel-tab.active{background:var(--brand);}
  .hero-inner{padding:48px 0 42px;}
  .hero-title{font-size:27px;}
  .hero-sub{font-size:15px;}
  .hero-points{grid-template-columns:1fr;gap:10px;}
  .section{padding:52px 0;}
  .section-title{font-size:23px;}
  .grid-2{grid-template-columns:1fr;}
  .hot-item{padding:18px 18px;gap:14px;}
  .rank{width:32px;height:32px;font-size:14px;}
  .news-item{gap:12px;}
  .news-thumb{width:86px;height:66px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .brand-mark{width:32px;height:32px;font-size:15px;}
  .hero-title{font-size:23px;}
  .stats-strip{grid-template-columns:1fr;}
  .stat{border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:none;}
  .stat-num{font-size:24px;}
  .card{padding:22px 18px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .guarantee{grid-template-columns:1fr;padding:26px 20px;}
  .grid-4{grid-template-columns:1fr;}
  .cta-panel{padding:30px 20px;}
  .cta-text h2{font-size:22px;}
}

/* roulang page: article */
:root{
 --ink:#13211f;
 --ink-soft:#3c5350;
 --muted:#6b7d7b;
 --brand:#0f5f56;
 --brand-dark:#0a4038;
 --brand-soft:#e6f2ef;
 --accent:#c9902e;
 --accent-dark:#a97518;
 --accent-soft:#fbf2e0;
 --bg:#f6f8f6;
 --surface:#ffffff;
 --line:#e0e7e3;
 --line-strong:#cdd8d3;
 --radius-lg:18px;
 --radius:13px;
 --radius-sm:9px;
 --shadow-sm:0 1px 2px rgba(14,44,40,.05), 0 6px 18px rgba(14,44,40,.05);
 --shadow-md:0 12px 30px rgba(14,44,40,.10);
 --shadow-lg:0 22px 48px rgba(14,44,40,.16);
 --container:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
 margin:0;
 font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(201,144,46,.55);outline-offset:2px;}
.container{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;width:100%;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:1030;
 background:rgba(255,255,255,.97);
 backdrop-filter:blur(10px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-md);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
 width:36px;height:36px;border-radius:10px;flex:0 0 auto;
 background:linear-gradient(150deg,var(--brand),#09483f);
 color:#fff;font-weight:800;font-size:17px;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px rgba(15,95,86,.25);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;}
.topbar-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
 display:none;align-items:center;gap:6px;
 background:var(--brand-soft);border:1px solid var(--line-strong);
 color:var(--brand-dark);font-size:14px;font-weight:600;
 padding:8px 13px;border-radius:10px;cursor:pointer;
 min-height:40px;transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:#d9ece8;}
.nav-toggle:active{transform:translateY(1px);}
.channelbar{border-top:1px solid var(--line);background:#fff;}
.channel-inner{display:flex;align-items:center;min-height:52px;}
.channel-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;padding:6px 0;}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
 display:inline-flex;align-items:center;white-space:nowrap;
 font-size:14.5px;font-weight:600;color:var(--ink-soft);
 padding:8px 16px;border-radius:999px;border:1px solid transparent;
 transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel-tab:hover{background:var(--brand-soft);color:var(--brand-dark);}
.channel-tab.active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 8px 18px rgba(15,95,86,.22);}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 font-size:15px;font-weight:700;line-height:1.2;
 padding:12px 22px;border-radius:10px;border:1px solid transparent;
 cursor:pointer;text-align:center;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:17px;}
.btn-primary{
 background:linear-gradient(180deg,#d8a341,var(--accent));
 color:#241a05;box-shadow:0 10px 22px rgba(201,144,46,.30);
}
.btn-primary:hover{background:linear-gradient(180deg,#e0b055,var(--accent-dark));color:#1d1403;transform:translateY(-2px);box-shadow:0 14px 28px rgba(201,144,46,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(201,144,46,.3);}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink-soft);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);transform:translateY(-2px);}
.btn-light-outline{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.4);color:#fff;}
.btn-light-outline:hover{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ---------- article hero ---------- */
.article-hero{
 position:relative;overflow:hidden;color:#fff;
 background:#0b2a27 url('/assets/images/acb65a3fd6198d92.webp') center/cover no-repeat;
}
.article-hero::before{
 content:"";position:absolute;inset:0;
 background:linear-gradient(108deg,rgba(6,30,27,.96) 0%,rgba(7,33,30,.88) 48%,rgba(9,40,36,.58) 100%);
}
.hero-wrap{position:relative;padding:46px 0 52px;max-width:900px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:20px;}
.crumbs a{color:rgba(255,255,255,.82);}
.crumbs a:hover{color:#f0c46b;}
.crumbs span.sep{color:rgba(255,255,255,.4);}
.crumbs span.now{color:rgba(255,255,255,.62);}
.hero-chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:18px;}
.chip{
 display:inline-flex;align-items:center;gap:6px;
 font-size:12.5px;font-weight:600;letter-spacing:.4px;
 padding:5px 13px;border-radius:999px;
 color:#f2dcae;background:rgba(255,255,255,.1);
 border:1px solid rgba(240,217,168,.36);
}
.article-title{font-size:38px;line-height:1.3;font-weight:800;color:#fff;letter-spacing:.4px;}
.article-lead{margin-top:18px;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.85);max-width:820px;}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:13.5px;color:rgba(255,255,255,.7);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:#f0c46b;font-size:15px;}

/* ---------- layout ---------- */
.page-main{padding:52px 0 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:38px;align-items:start;}

/* ---------- article body ---------- */
.article-panel{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);padding:34px 34px 30px;
}
.article-body{font-size:15.5px;line-height:1.9;color:var(--ink-soft);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{font-size:23px;color:var(--ink);margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--accent);line-height:1.5;}
.article-body h3{font-size:18.5px;color:var(--ink);margin:26px 0 10px;}
.article-body h4{font-size:16.5px;color:var(--ink);margin:22px 0 8px;}
.article-body p{margin:0 0 15px;}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px;}
.article-body ul li{list-style:disc;margin-bottom:7px;}
.article-body ol li{list-style:decimal;margin-bottom:7px;}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(15,95,86,.28);}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark);}
.article-body blockquote{
 margin:20px 0;padding:16px 20px;border-left:4px solid var(--brand);
 background:var(--brand-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
 color:var(--ink-soft);font-size:15px;
}
.article-body code{background:#eef3f1;color:#0a4038;padding:2px 6px;border-radius:6px;font-size:13.5px;}
.article-body pre{background:#0b2421;color:#d7e6e2;padding:18px;border-radius:var(--radius);overflow:auto;font-size:13.5px;line-height:1.7;margin:0 0 18px;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body img{border-radius:var(--radius);margin:18px 0;box-shadow:var(--shadow-sm);}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--brand-soft);color:var(--brand-dark);font-weight:700;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:28px 0;}
.empty-state{padding:34px 8px;text-align:center;}
.empty-state i{font-size:40px;color:var(--line-strong);}
.empty-state h2{font-size:21px;margin:14px 0 10px;border:none;padding:0;}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:20px;}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:132px;display:flex;flex-direction:column;gap:18px;}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px 20px;}
.aside-title{display:flex;align-items:center;gap:9px;font-size:15.5px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.aside-title i{color:var(--accent);font-size:17px;}
.aside-list li{display:flex;gap:9px;font-size:13.8px;line-height:1.75;color:var(--ink-soft);padding:7px 0;border-bottom:1px dashed var(--line);}
.aside-list li:last-child{border-bottom:none;}
.aside-list i{color:var(--brand);font-size:14px;line-height:1.8;flex:0 0 auto;}
.kv-row{display:flex;justify-content:space-between;gap:12px;font-size:13.6px;padding:8px 0;border-bottom:1px dashed var(--line);}
.kv-row:last-child{border-bottom:none;}
.kv-row span{color:var(--muted);}
.kv-row b{color:var(--brand-dark);font-weight:700;}
.anchor-list{display:flex;flex-direction:column;gap:8px;}
.anchor-list a{
 display:flex;align-items:center;justify-content:space-between;gap:8px;
 font-size:13.8px;font-weight:600;color:var(--ink-soft);
 background:#f4f8f6;border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:9px 13px;min-height:40px;
 transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.anchor-list a:hover{background:var(--brand-soft);border-color:var(--line-strong);color:var(--brand-dark);transform:translateX(3px);}
.anchor-list i{font-size:13px;color:var(--accent);}

/* ---------- sections ---------- */
.section{padding:70px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:800px;margin-bottom:34px;}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:1.2px;color:var(--brand);background:var(--brand-soft);padding:5px 13px;border-radius:999px;margin-bottom:14px;}
.section-title{font-size:27px;line-height:1.4;letter-spacing:.3px;}
.section-title em{font-style:normal;color:var(--brand);}
.section-desc{margin-top:13px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- grids & cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.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;}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:25px 23px;box-shadow:var(--shadow-sm);height:100%;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.icon-badge{
 width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
 display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:15px;
}
.card h3{font-size:17.5px;margin-bottom:10px;color:var(--ink);}
.card p{font-size:14.4px;color:var(--ink-soft);line-height:1.82;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px;}
.tag{display:inline-block;font-size:12.3px;font-weight:600;padding:4px 11px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);}
.tag.gold{background:var(--accent-soft);color:var(--accent-dark);}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step;}
.flow-step{
 position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 20px 22px;box-shadow:var(--shadow-sm);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.flow-num{
 width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
 background:linear-gradient(160deg,var(--brand),var(--brand-dark));color:#fff;font-weight:800;font-size:14.5px;
 margin-bottom:14px;box-shadow:0 6px 14px rgba(15,95,86,.22);
}
.flow-step h3{font-size:16.5px;margin-bottom:8px;}
.flow-step p{font-size:13.9px;color:var(--ink-soft);line-height:1.8;}

/* ---------- metric strip ---------- */
.metric-strip{
 display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
 background:#0b2421;border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-md);
}
.metric{padding:26px 22px;border-right:1px solid rgba(255,255,255,.1);}
.metric:last-child{border-right:none;}
.metric b{display:block;font-size:27px;font-weight:800;color:#f0c46b;line-height:1.25;letter-spacing:.5px;}
.metric span{display:block;margin-top:7px;font-size:13.5px;color:rgba(255,255,255,.68);line-height:1.7;}

/* ---------- compare ---------- */
.compare-card{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--radius);padding:22px 22px;box-shadow:var(--shadow-sm);height:100%;}
.compare-card.warn{border-left-color:var(--accent);}
.compare-card h3{font-size:16.5px;margin-bottom:10px;display:flex;align-items:center;gap:9px;}
.compare-card h3 i{color:var(--brand);font-size:17px;}
.compare-card.warn h3 i{color:var(--accent);}
.compare-card p{font-size:14.2px;color:var(--ink-soft);line-height:1.82;}

/* ---------- channel matrix ---------- */
.channel-card{
 display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);height:100%;color:inherit;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand);color:inherit;}
.channel-card .icon-badge{margin-bottom:14px;}
.channel-card h3{font-size:17px;margin-bottom:9px;color:var(--ink);}
.channel-card p{font-size:14px;color:var(--ink-soft);line-height:1.8;}
.channel-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.6px;font-weight:700;color:var(--brand);}
.channel-card:hover .channel-more{color:var(--brand-dark);}

/* ---------- related list ---------- */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{
 display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);height:100%;color:inherit;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);color:inherit;}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-body{padding:18px 19px 20px;display:flex;flex-direction:column;gap:9px;flex:1;}
.post-body h3{font-size:16px;line-height:1.6;color:var(--ink);}
.post-body p{font-size:13.6px;color:var(--muted);line-height:1.75;}
.post-card:hover h3{color:var(--brand-dark);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-wrap .accordion-item{border:1px solid var(--line);border-radius:var(--radius) !important;overflow:hidden;margin-bottom:12px;background:var(--surface);box-shadow:var(--shadow-sm);}
.faq-wrap .accordion-button{
 font-size:15.5px;font-weight:700;color:var(--ink);background:var(--surface);
 padding:17px 20px;box-shadow:none;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--brand-dark);background:var(--brand-soft);}
.faq-wrap .accordion-button:focus{box-shadow:0 0 0 3px rgba(201,144,46,.28);border-color:transparent;}
.faq-wrap .accordion-body{font-size:14.5px;color:var(--ink-soft);line-height:1.85;padding:16px 20px 20px;}

/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;color:#fff;border-radius:var(--radius-lg);
 background:#0b2a27 url('/assets/images/3ef291aa18498c05.webp') center/cover no-repeat;
 padding:48px 44px;box-shadow:var(--shadow-lg);
}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,30,27,.95),rgba(9,44,39,.78));}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:26px;line-height:1.4;color:#fff;}
.cta-inner p{margin-top:12px;font-size:14.6px;color:rgba(255,255,255,.82);line-height:1.85;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:13px;}

/* ---------- footer ---------- */
.site-footer{background:#0b2421;color:rgba(255,255,255,.75);padding:56px 0 0;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:36px;padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;margin-bottom:15px;}
.footer-brand strong{font-size:16.5px;letter-spacing:.3px;}
.footer-about{font-size:13.8px;line-height:1.88;color:rgba(255,255,255,.62);max-width:440px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:15px;font-weight:700;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-col a:hover{color:#f0c46b;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom .tech{font-size:12.5px;color:rgba(255,255,255,.38);letter-spacing:.3px;}

/* ---------- responsive ---------- */
@media (max-width:1100px){
 .article-layout{grid-template-columns:minmax(0,1fr);}
 .article-aside{position:static;}
 .channel-tab{padding:8px 13px;font-size:14px;}
}
@media (max-width:992px){
 .article-title{font-size:32px;}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
 .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
 .metric{border-bottom:1px solid rgba(255,255,255,.1);}
 .metric:nth-child(2n){border-right:none;}
 .post-list{grid-template-columns:repeat(2,minmax(0,1fr));}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .footer-col:first-child{grid-column:1 / -1;}
}
@media (max-width:768px){
 .nav-toggle{display:inline-flex;}
 .channelbar{display:none;border-top:1px solid var(--line);}
 .channelbar.is-open{display:block;}
 .channel-inner{min-height:auto;padding:8px 0 12px;}
 .channel-tabs{flex-direction:column;align-items:stretch;gap:4px;overflow:visible;}
 .channel-tab{border-radius:10px;padding:11px 14px;justify-content:flex-start;min-height:44px;}
 .hero-wrap{padding:36px 0 40px;}
 .article-title{font-size:28px;line-height:1.35;}
 .article-lead{font-size:14.8px;}
 .page-main{padding:34px 0 0;}
 .article-panel{padding:24px 19px 22px;}
 .article-body{font-size:15px;}
 .article-body h2{font-size:20.5px;}
 .section{padding:48px 0;}
 .section-title{font-size:23px;}
 .grid-2,.grid-3,.grid-4,.flow,.post-list{grid-template-columns:minmax(0,1fr);}
 .metric-strip{grid-template-columns:minmax(0,1fr);}
 .metric{border-right:none;}
 .cta-band{padding:32px 22px;}
 .cta-inner h2{font-size:22px;}
 .cta-actions .btn{width:100%;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
 .brand-text{font-size:15.5px;}
 .topbar-right .cta-top{display:none;}
 .article-title{font-size:24px;}
 .crumbs{font-size:12px;}
 .article-meta{font-size:12.8px;gap:8px 16px;}
 .card{padding:20px 18px;}
 .btn{padding:11px 18px;font-size:14.5px;min-height:42px;}
}

/* roulang page: category1 */
:root{
  --ink:#13211f;
  --ink-soft:#3c5350;
  --muted:#6b7d7b;
  --brand:#0f5f56;
  --brand-dark:#0a4038;
  --brand-soft:#e6f2ef;
  --accent:#c9902e;
  --accent-dark:#a97518;
  --accent-soft:#fbf2e0;
  --bg:#f6f8f6;
  --surface:#ffffff;
  --line:#e0e7e3;
  --line-strong:#cdd8d3;
  --radius-lg:18px;
  --radius:13px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(14,44,40,.05), 0 6px 18px rgba(14,44,40,.05);
  --shadow-md:0 12px 30px rgba(14,44,40,.10);
  --shadow-lg:0 22px 48px rgba(14,44,40,.16);
  --container:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.3;font-weight:800;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(201,144,46,.55);outline-offset:3px;}
.container{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;}
/* header */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-md);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand),#09483f);
  color:#fff;font-weight:800;font-size:17px;letter-spacing:0;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(15,95,86,.25);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;}
.topbar-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;align-items:center;gap:6px;
  background:var(--brand-soft);border:1px solid var(--line-strong);
  color:var(--brand-dark);font-size:14px;font-weight:600;
  padding:8px 13px;border-radius:10px;cursor:pointer;
  min-height:40px;transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:#d9ece8;}
.nav-toggle:active{transform:translateY(1px);}
.channelbar{border-top:1px solid var(--line);background:#fff;}
.channel-inner{display:flex;align-items:center;min-height:52px;}
.channel-tabs{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:6px 0;}
.channel-tab{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 16px;border-radius:10px;font-size:14.5px;font-weight:600;
  color:var(--ink-soft);line-height:1.35;transition:all .2s ease;
}
.channel-tab:hover{background:var(--brand-soft);color:var(--brand-dark);}
.channel-tab.active{background:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(15,95,86,.20);}
.channel-tab.active:hover{background:var(--brand-dark);color:#fff;}
/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1.2;
  padding:12px 22px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:17px;}
.btn-primary{
  background:linear-gradient(180deg,#d8a341,var(--accent));
  color:#241a05;box-shadow:0 10px 22px rgba(201,144,46,.30);
}
.btn-primary:hover{background:linear-gradient(180deg,#e0b055,var(--accent-dark));color:#1d1403;transform:translateY(-2px);box-shadow:0 14px 28px rgba(201,144,46,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(201,144,46,.3);}
.btn-outline-light{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.42);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.65);transform:translateY(-2px);}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink-soft);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;}
/* sections */
.section{padding:74px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:790px;margin-bottom:38px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);
  margin-bottom:13px;
}
.section-eyebrow::before{
  content:"";display:block;width:26px;height:2px;border-radius:2px;background:var(--accent);
}
.section-title{font-size:29px;letter-spacing:.4px;}
.section-desc{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.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:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.icon-badge{
  width:46px;height:46px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:21px;margin-bottom:16px;
}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
}
/* category hero */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  background:#0b2a27 url('/assets/images/acb65a3fd6198d92.webp') center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(7,33,30,.96) 0%,rgba(7,33,30,.88) 48%,rgba(9,40,36,.56) 100%);
}
.cat-hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.78fr);
  gap:44px;align-items:center;padding:68px 0 64px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:#f0d9a8;background:rgba(255,255,255,.10);
  border:1px solid rgba(240,217,168,.35);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.hero-title{font-size:40px;line-height:1.28;font-weight:800;color:#fff;letter-spacing:.4px;}
.hero-title .hl{color:#f0c46b;}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:780px;}
.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 26px;margin-top:28px;max-width:820px;list-style:none;}
.hero-point{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.91);}
.hero-point i{color:#f0c46b;font-size:17px;line-height:1.65;flex:0 0 auto;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{margin-top:22px;font-size:13px;color:rgba(255,255,255,.68);letter-spacing:.3px;}
.hero-panel{
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.20);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  box-shadow:0 20px 44px rgba(0,0,0,.18);
  backdrop-filter:blur(11px);
}
.panel-kicker{display:block;font-size:12px;letter-spacing:1.4px;color:#f0d9a8;font-weight:700;margin-bottom:6px;}
.panel-head h2{font-size:19px;color:#fff;letter-spacing:.3px;}
.panel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:20px;}
.panel-stat{
  background:rgba(0,0,0,.14);border:1px solid rgba(255,255,255,.13);
  border-radius:12px;padding:15px 14px;
}
.panel-stat strong{display:block;font-size:28px;line-height:1.15;color:#f0c46b;font-weight:800;}
.panel-stat span{display:block;margin-top:5px;font-size:12.5px;color:rgba(255,255,255,.72);}
.panel-note{display:flex;align-items:flex-start;gap:8px;margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.14);font-size:12.8px;color:rgba(255,255,255,.73);line-height:1.65;}
.panel-note i{color:#f0c46b;font-size:15px;line-height:1.6;}
/* metrics */
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.stat-icon{
  width:42px;height:42px;border-radius:11px;background:var(--accent-soft);color:var(--accent-dark);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:15px;
}
.stat-card h3{font-size:17px;margin-bottom:9px;}
.stat-card p{font-size:14px;color:var(--ink-soft);line-height:1.78;}
/* flow */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.flow-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.flow-index{display:block;font-size:31px;line-height:1;font-weight:800;color:rgba(201,144,46,.72);margin-bottom:14px;letter-spacing:-1px;}
.flow-card h3{font-size:17px;margin-bottom:9px;}
.flow-card p{font-size:14px;color:var(--ink-soft);line-height:1.8;}
/* entry structure */
.entry-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:42px;align-items:center;}
.entry-figure{position:relative;}
.entry-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow-md);
  border:1px solid var(--line);
}
.figure-cap{margin-top:13px;font-size:13px;color:var(--muted);line-height:1.7;}
.entry-content h2{font-size:29px;margin-bottom:14px;}
.entry-content > p{font-size:15px;color:var(--ink-soft);line-height:1.85;}
.field-list{margin:22px 0;display:grid;gap:0;}
.field-row{display:grid;grid-template-columns:142px minmax(0,1fr);gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);}
.field-row:last-child{border-bottom:0;}
.field-row dt{margin:0;}
.field-row code{
  display:inline-block;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:12.5px;font-weight:700;color:var(--brand-dark);
  background:var(--brand-soft);padding:3px 8px;border-radius:7px;line-height:1.5;
}
.field-row dd{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.75;}
.io-strip{
  display:flex;flex-wrap:wrap;gap:12px 22px;
  background:var(--brand-soft);border:1px solid #cfe6e1;
  border-radius:12px;padding:15px 17px;
  font-size:14px;color:var(--brand-dark);line-height:1.65;
}
.io-strip strong{font-weight:800;margin-right:6px;}
/* compare */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.compare-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 23px;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.compare-label{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;color:var(--accent-dark);background:var(--accent-soft);
  padding:3px 10px;border-radius:999px;margin-bottom:13px;
}
.compare-card h3{font-size:17px;margin-bottom:9px;}
.compare-card p{font-size:14px;color:var(--ink-soft);line-height:1.8;}
/* maintenance */
.maintain-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:42px;align-items:center;}
.check-list{list-style:none;display:grid;gap:12px;margin:22px 0 24px;}
.check-list li{position:relative;padding-left:31px;color:var(--ink-soft);font-size:14.5px;line-height:1.8;}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:2px;
  width:21px;height:21px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:800;
}
.revision-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-sm);}
.revision-box h3{font-size:16px;margin-bottom:12px;}
.revision-box ul{list-style:none;display:grid;gap:9px;}
.revision-box li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-soft);line-height:1.75;}
.revision-box li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.maintain-figure{position:relative;}
.maintain-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-lg);
  border:1px solid var(--line);box-shadow:var(--shadow-md);
}
.mini-note{
  position:absolute;left:14px;right:14px;bottom:14px;
  background:rgba(11,42,39,.88);color:rgba(255,255,255,.90);
  border:1px solid rgba(255,255,255,.16);
  border-radius:12px;padding:12px 14px;font-size:12.8px;line-height:1.65;
  backdrop-filter:blur(8px);
}
/* faq */
.faq-list{max-width:940px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-sm);margin-bottom:12px;overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 22px;font-weight:700;font-size:15.5px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  width:27px;height:27px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-answer{padding:16px 22px 20px;color:var(--ink-soft);font-size:14.5px;line-height:1.86;border-top:1px dashed var(--line);}
/* cta */
.cta-section{padding:68px 0;background:var(--bg);}
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:#0b2a27 url('/assets/images/b5ba7ba06b027e19.webp') center/cover no-repeat;
  border-radius:20px;padding:44px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(7,33,30,.95),rgba(7,33,30,.80) 56%,rgba(9,40,36,.55));
}
.cta-copy,.cta-actions{position:relative;z-index:1;}
.cta-copy{max-width:690px;}
.cta-copy .hero-eyebrow{margin-bottom:14px;}
.cta-band h2{font-size:27px;line-height:1.38;color:#fff;letter-spacing:.4px;}
.cta-band p{margin-top:13px;font-size:15px;line-height:1.82;color:rgba(255,255,255,.84);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;min-width:250px;}
/* footer */
.site-footer{background:#0b2a27;color:rgba(255,255,255,.78);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:16px;box-shadow:none;}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:700;letter-spacing:.3px;}
.footer-about{margin-top:16px;font-size:13.8px;line-height:1.85;color:rgba(255,255,255,.67);max-width:430px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:#f0c46b;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:40px;padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.56);
}
.footer-bottom .tech{color:rgba(255,255,255,.48);letter-spacing:.2px;}
/* responsive */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:30px;padding:58px 0 54px;}
  .hero-panel{max-width:720px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .entry-layout{grid-template-columns:1fr;gap:32px;}
  .maintain-grid{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .channelbar{display:none;border-top:1px solid var(--line);}
  .channelbar.open{display:block;}
  .channel-inner{overflow-x:auto;padding:8px 20px;}
  .channel-tabs{flex-wrap:nowrap;gap:8px;padding:2px 0;min-width:max-content;}
  .channel-tab{white-space:nowrap;}
  .topbar-inner{min-height:62px;}
  .hero-title{font-size:35px;}
}
@media (max-width:768px){
  .hero-title{font-size:32px;}
  .section{padding:56px 0;}
  .section-title{font-size:24px;}
  .grid-3,.grid-2,.grid-4,.compare-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;}
  .cta-actions{justify-content:flex-start;min-width:0;}
  .cta-band h2{font-size:23px;}
  .hero-panel{padding:22px 20px;}
  .field-row{grid-template-columns:1fr;gap:5px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:15px;letter-spacing:0;}
  .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px;}
  .cta-top{padding:8px 10px;font-size:12.5px;}
  .nav-toggle span{display:none;}
  .hero-title{font-size:28px;line-height:1.35;}
  .hero-sub{font-size:14.5px;}
  .hero-points{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .panel-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .stat-card,.card,.flow-card,.compare-card{padding:20px;}
  .faq-item summary{padding:16px 18px;font-size:14.5px;}
  .faq-answer{padding:15px 18px 18px;}
  .cta-actions .btn{width:100%;}
  .io-strip{font-size:13.5px;}
}

/* roulang page: category2 */
:root{
 --ink:#13211f;
 --ink-soft:#3c5350;
 --muted:#6b7d7b;
 --brand:#0f5f56;
 --brand-dark:#0a4038;
 --brand-soft:#e6f2ef;
 --accent:#c9902e;
 --accent-dark:#a97518;
 --accent-soft:#fbf2e0;
 --bg:#f6f8f6;
 --surface:#ffffff;
 --line:#e0e7e3;
 --line-strong:#cdd8d3;
 --radius-lg:18px;
 --radius:13px;
 --radius-sm:9px;
 --shadow-sm:0 1px 2px rgba(14,44,40,.05), 0 6px 18px rgba(14,44,40,.05);
 --shadow-md:0 12px 30px rgba(14,44,40,.10);
 --shadow-lg:0 22px 48px rgba(14,44,40,.16);
 --container:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;}
::selection{background:var(--brand);color:#fff;}
a:focus-visible,button:focus-visible,summary:focus-visible{
 outline:3px solid rgba(15,95,86,.35);outline-offset:2px;border-radius:6px;
}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:1030;
 background:rgba(255,255,255,.97);
 backdrop-filter:blur(10px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-md);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
 width:36px;height:36px;border-radius:10px;flex:0 0 auto;
 background:linear-gradient(150deg,var(--brand),#09483f);
 color:#fff;font-weight:800;font-size:17px;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px rgba(15,95,86,.25);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;}
.topbar-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
 display:none;align-items:center;gap:6px;
 background:var(--brand-soft);border:1px solid var(--line-strong);
 color:var(--brand-dark);font-size:14px;font-weight:600;
 padding:8px 13px;border-radius:10px;cursor:pointer;
 min-height:40px;transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:#d9ece8;}
.nav-toggle:active{transform:translateY(1px);}
.channelbar{background:#fff;border-top:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;min-height:52px;}
.channel-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:8px 0;width:100%;scrollbar-width:none;}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
 flex:0 0 auto;font-size:14.5px;font-weight:600;color:var(--ink-soft);
 padding:8px 17px;border-radius:999px;border:1px solid transparent;
 transition:background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-tab:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--line);}
.channel-tab.active{background:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(15,95,86,.22);}
/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 font-size:15px;font-weight:700;line-height:1.2;
 padding:12px 22px;border-radius:10px;border:1px solid transparent;
 cursor:pointer;text-align:center;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:17px;}
.btn-primary{
 background:linear-gradient(180deg,#d8a341,var(--accent));
 color:#241a05;box-shadow:0 10px 22px rgba(201,144,46,.30);
}
.btn-primary:hover{background:linear-gradient(180deg,#e0b055,var(--accent-dark));color:#1d1403;transform:translateY(-2px);box-shadow:0 14px 28px rgba(201,144,46,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(201,144,46,.3);}
.btn-outline-light{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.42);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.65);transform:translateY(-2px);}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink-soft);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;}
/* ---------- hero ---------- */
.hero{
 position:relative;overflow:hidden;color:#fff;
 background:#0b2a27 url('/assets/images/acb65a3fd6198d92.webp') center/cover no-repeat;
}
.hero::before{
 content:"";position:absolute;inset:0;
 background:linear-gradient(112deg,rgba(6,30,27,.96) 0%,rgba(7,33,30,.88) 48%,rgba(9,40,36,.60) 100%);
}
.hero-inner{
 position:relative;
 display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;
 padding:66px 0 62px;
}
.hero-eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:600;letter-spacing:1px;
 color:#f0d9a8;background:rgba(255,255,255,.1);
 border:1px solid rgba(240,217,168,.35);
 padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.hero-title{font-size:38px;line-height:1.28;font-weight:800;color:#fff;letter-spacing:.4px;}
.hero-title .hl{color:#f0c46b;}
.hero-sub{margin-top:18px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.86);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tag{
 display:inline-flex;align-items:center;gap:6px;
 font-size:13px;font-weight:600;color:#f4e4c2;
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.22);
 padding:6px 13px;border-radius:999px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
/* hero panel */
.hero-panel{
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.18);
 border-radius:var(--radius-lg);
 padding:22px 22px 18px;
 backdrop-filter:blur(8px);
 box-shadow:0 22px 48px rgba(0,0,0,.25);
}
.panel-head{
 display:flex;align-items:center;justify-content:space-between;
 font-size:13.5px;font-weight:700;color:#fff;
 padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.16);
}
.panel-head .panel-dot{
 display:inline-flex;align-items:center;gap:6px;
 font-size:12px;font-weight:600;color:#9fe3cf;
}
.panel-head .panel-dot::before{
 content:"";width:7px;height:7px;border-radius:50%;background:#5fd3b0;
 box-shadow:0 0 0 4px rgba(95,211,176,.18);
}
.rank-list{margin-top:14px;display:flex;flex-direction:column;gap:12px;}
.rank-list li{display:grid;grid-template-columns:26px 1fr 84px;align-items:center;gap:10px;}
.rank-no{font-size:12px;font-weight:700;color:#f0c46b;letter-spacing:.5px;}
.rank-main strong{display:block;font-size:14px;color:#fff;font-weight:600;line-height:1.4;}
.rank-main small{display:block;font-size:12px;color:rgba(255,255,255,.6);}
.rank-bar{display:block;height:6px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;}
.rank-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#e0b055,#c9902e);}
.panel-foot{
 margin-top:16px;padding-top:12px;border-top:1px solid rgba(255,255,255,.16);
 font-size:12.5px;color:rgba(255,255,255,.62);
}
/* ---------- sections ---------- */
.section{padding:74px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:790px;margin-bottom:38px;}
.section-label{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
 color:var(--brand);background:var(--brand-soft);
 padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-title{font-size:28px;letter-spacing:.3px;}
.section-desc{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85;}
.divider-line{width:52px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--accent),rgba(201,144,46,.25));margin-top:18px;}
/* ---------- grids & cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.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;}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow-sm);height:100%;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.icon-badge{
 width:46px;height:46px;border-radius:12px;
 background:var(--brand-soft);color:var(--brand);
 display:flex;align-items:center;justify-content:center;
 font-size:21px;margin-bottom:16px;
}
.card h3{font-size:17.5px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
 display:inline-block;font-size:12.5px;font-weight:600;
 padding:4px 11px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-dark);
}
.tag-accent{background:var(--accent-soft);color:var(--accent-dark);}
/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center;}
.split-media{
 border-radius:var(--radius-lg);overflow:hidden;
 border:1px solid var(--line);box-shadow:var(--shadow-md);position:relative;
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.split-media figcaption{
 position:absolute;left:0;right:0;bottom:0;
 padding:16px 18px;font-size:13px;color:#fff;
 background:linear-gradient(180deg,rgba(7,33,30,0),rgba(7,33,30,.86));
}
.dim-list{display:flex;flex-direction:column;gap:16px;margin-top:24px;}
.dim-item{
 display:grid;grid-template-columns:38px 1fr;gap:14px;
 padding:16px 18px;border-radius:var(--radius);background:var(--bg);
 border:1px solid var(--line);
 transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.dim-item:hover{background:var(--brand-soft);border-color:#cfe3de;transform:translateY(-2px);}
.dim-num{
 width:38px;height:38px;border-radius:10px;flex:0 0 auto;
 display:flex;align-items:center;justify-content:center;
 font-size:14px;font-weight:800;color:var(--brand-dark);
 background:#fff;border:1px solid var(--line-strong);
}
.dim-item h4{font-size:15.5px;margin-bottom:4px;}
.dim-item p{font-size:13.8px;color:var(--ink-soft);line-height:1.75;}
/* ---------- scenario cards ---------- */
.scene-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-sm);height:100%;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
 display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.scene-body h3{font-size:17px;}
.scene-body p{font-size:14px;color:var(--ink-soft);line-height:1.78;}
.scene-body .tags{margin-top:auto;padding-top:12px;}
/* ---------- sample table ---------- */
.table-wrap{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow:hidden;
}
.table-wrap .table-head{
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
 padding:18px 22px;border-bottom:1px solid var(--line);background:var(--brand-soft);
}
.table-wrap .table-head strong{font-size:15px;color:var(--brand-dark);}
.table-wrap .table-head span{font-size:12.5px;color:var(--muted);}
.sample-table{width:100%;border-collapse:collapse;font-size:14px;}
.sample-table th{
 text-align:left;font-size:12.5px;font-weight:700;letter-spacing:.6px;
 color:var(--muted);background:#fbfcfb;padding:12px 22px;border-bottom:1px solid var(--line);
 white-space:nowrap;
}
.sample-table td{padding:15px 22px;border-bottom:1px solid var(--line);color:var(--ink-soft);vertical-align:middle;}
.sample-table tr:last-child td{border-bottom:0;}
.sample-table tr:hover td{background:#fbfcfb;}
.sample-table .cell-strong{color:var(--ink);font-weight:700;}
.score-pill{
 display:inline-block;min-width:52px;text-align:center;
 font-size:13px;font-weight:700;padding:3px 10px;border-radius:999px;
 background:var(--accent-soft);color:var(--accent-dark);
}
.score-pill.warn{background:#fdeee6;color:#a2542c;}
.score-pill.good{background:var(--brand-soft);color:var(--brand-dark);}
/* ---------- stats ---------- */
.stat-band{
 background:linear-gradient(140deg,#0d3f39,#0a2e2a);
 border-radius:var(--radius-lg);padding:38px 34px;color:#fff;
 box-shadow:var(--shadow-lg);
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.stat-item{border-left:2px solid rgba(240,196,107,.6);padding-left:16px;}
.stat-item strong{display:block;font-size:30px;font-weight:800;color:#f0c46b;line-height:1.2;}
.stat-item span{display:block;font-size:13.5px;color:rgba(255,255,255,.78);margin-top:6px;}
.quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px;}
.quote{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;box-shadow:var(--shadow-sm);
}
.quote p{font-size:14.5px;color:var(--ink-soft);line-height:1.85;}
.quote footer{margin-top:14px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.quote footer i{color:var(--accent);}
/* ---------- plan ---------- */
.plan-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:28px 26px;box-shadow:var(--shadow-sm);height:100%;
 display:flex;flex-direction:column;gap:14px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.plan-card.featured{border-color:var(--brand);box-shadow:0 16px 36px rgba(15,95,86,.14);}
.plan-badge{
 align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.8px;
 padding:4px 11px;border-radius:999px;background:var(--accent-soft);color:var(--accent-dark);
}
.plan-card h3{font-size:19px;}
.plan-card .plan-sub{font-size:13.5px;color:var(--muted);}
.plan-list{display:flex;flex-direction:column;gap:9px;margin-top:4px;}
.plan-list li{display:flex;gap:9px;font-size:14px;color:var(--ink-soft);line-height:1.7;}
.plan-list li i{color:var(--brand);font-size:15px;line-height:1.7;flex:0 0 auto;}
.plan-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
/* ---------- news list ---------- */
.post-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);height:100%;
 display:flex;flex-direction:column;gap:12px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.post-card h3{font-size:16.5px;line-height:1.55;}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand);}
.post-card p{font-size:14px;color:var(--ink-soft);line-height:1.78;}
.post-meta{
 margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
 display:flex;flex-wrap:wrap;align-items:center;gap:10px;
 font-size:12.5px;color:var(--muted);
}
.post-meta .tag{font-size:12px;padding:3px 10px;}
.empty-note{
 grid-column:1/-1;text-align:center;font-size:14px;color:var(--muted);
 padding:34px 20px;border:1px dashed var(--line-strong);border-radius:var(--radius);
 background:var(--surface);
}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#cfe3de;box-shadow:var(--shadow-md);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;
 font-size:15.5px;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:"\F64D";font-family:"bootstrap-icons";font-size:15px;color:var(--brand);
 transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--ink-soft);line-height:1.85;}
/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-lg);
 background:#0b2a27 url('/assets/images/1e30d4ea89a2c809.webp') center/cover no-repeat;
 color:#fff;padding:52px 44px;box-shadow:var(--shadow-lg);
}
.cta-band::before{
 content:"";position:absolute;inset:0;
 background:linear-gradient(115deg,rgba(6,30,27,.95),rgba(7,33,30,.82) 60%,rgba(9,40,36,.6));
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:center;}
.cta-inner h2{font-size:27px;color:#fff;letter-spacing:.3px;}
.cta-inner p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.85);line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
/* ---------- footer ---------- */
.site-footer{background:#0b2523;color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0;}
.footer-grid{
 display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:38px;
 padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:700;}
.footer-about{font-size:13.8px;line-height:1.85;color:rgba(255,255,255,.64);max-width:400px;}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:14px;letter-spacing:.4px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col ul a{font-size:13.8px;color:rgba(255,255,255,.68);}
.footer-col ul a:hover{color:#f0c46b;}
.footer-bottom{
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
 padding:20px 0 24px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .tech{font-size:12.5px;color:rgba(255,255,255,.4);letter-spacing:.3px;}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:34px;padding:54px 0 50px;}
 .hero-title{font-size:33px;}
 .split{grid-template-columns:1fr;gap:30px;}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
 .cta-inner{grid-template-columns:1fr;gap:24px;}
 .cta-actions{justify-content:flex-start;}
}
@media (max-width:860px){
 .nav-toggle{display:inline-flex;}
 .channelbar{display:none;}
 .channelbar.open{display:block;border-top:1px solid var(--line);}
 .channel-inner{min-height:0;}
 .channel-tabs{padding:10px 0 14px;}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .section{padding:56px 0;}
 .section-tight{padding:44px 0;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
 .footer-about{max-width:none;}
 .quote{grid-column:auto;}
 .quotes{grid-template-columns:1fr;}
}
@media (max-width:640px){
 .brand-text{font-size:15.5px;}
 .cta-top{display:none;}
 .hero-title{font-size:27px;}
 .hero-sub{font-size:14.5px;}
 .hero-inner{padding:44px 0 42px;}
 .section-title{font-size:23px;}
 .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
 .stat-grid{grid-template-columns:1fr;gap:16px;}
 .stat-item{display:flex;align-items:baseline;gap:12px;border-left-width:2px;}
 .stat-item strong{font-size:24px;}
 .stat-item span{margin-top:0;}
 .sample-table th,.sample-table td{padding:12px 14px;font-size:13px;}
 .table-wrap{overflow-x:auto;}
 .cta-band{padding:34px 22px;}
 .cta-inner h2{font-size:22px;}
 .btn{width:100%;}
 .hero-actions .btn,.cta-actions .btn{width:100%;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{font-size:12px;}
 .plan-card{padding:24px 20px;}
}

/* roulang page: category3 */
:root{
  --ink:#13211f;
  --ink-soft:#3c5350;
  --muted:#6b7d7b;
  --brand:#0f5f56;
  --brand-dark:#0a4038;
  --brand-soft:#e6f2ef;
  --accent:#c9902e;
  --accent-dark:#a97518;
  --accent-soft:#fbf2e0;
  --bg:#f6f8f6;
  --surface:#ffffff;
  --line:#e0e7e3;
  --line-strong:#cdd8d3;
  --radius-lg:18px;
  --radius:13px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(14,44,40,.05), 0 6px 18px rgba(14,44,40,.05);
  --shadow-md:0 12px 30px rgba(14,44,40,.10);
  --shadow-lg:0 22px 48px rgba(14,44,40,.16);
  --container:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
p{margin:0 0 12px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0 0 10px;line-height:1.35;font-weight:800;color:var(--ink);letter-spacing:.2px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.container{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;width:100%;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-md);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand),#09483f);
  color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(15,95,86,.25);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;}
.topbar-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;align-items:center;gap:6px;
  background:var(--brand-soft);border:1px solid var(--line-strong);
  color:var(--brand-dark);font-size:14px;font-weight:600;
  padding:8px 13px;border-radius:10px;cursor:pointer;
  min-height:40px;transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:#d9ece8;}
.nav-toggle:active{transform:translateY(1px);}
.channelbar{border-top:1px solid var(--line);background:#fff;}
.channel-inner{display:flex;align-items:center;gap:8px;min-height:50px;}
.channel-tabs{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:6px 0;width:100%;}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tab{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--ink-soft);
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.channel-tab:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--line-strong);}
.channel-tab.active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 8px 18px rgba(15,95,86,.22);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;line-height:1.2;
  padding:12px 22px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:17px;}
.btn-primary{
  background:linear-gradient(180deg,#d8a341,var(--accent));
  color:#241a05;box-shadow:0 10px 22px rgba(201,144,46,.30);
}
.btn-primary:hover{background:linear-gradient(180deg,#e0b055,var(--accent-dark));color:#1d1403;transform:translateY(-2px);box-shadow:0 14px 28px rgba(201,144,46,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(201,144,46,.3);}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink-soft);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);transform:translateY(-2px);}
.btn-outline-light{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.42);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.65);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:#0b2a27 url('/assets/images/acb65a3fd6198d92.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(7,33,30,.95) 0%,rgba(7,33,30,.87) 48%,rgba(9,40,36,.58) 100%);
}
.hero-inner{position:relative;padding:64px 0 62px;display:grid;grid-template-columns:1.35fr .9fr;gap:44px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.8px;
  color:#f0d9a8;background:rgba(255,255,255,.1);
  border:1px solid rgba(240,217,168,.35);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.hero-title{font-size:38px;line-height:1.28;font-weight:800;color:#fff;letter-spacing:.4px;}
.hero-title .hl{color:#f0c46b;}
.hero-sub{margin-top:16px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.87);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px;}
.hero-tag{
  font-size:13px;font-weight:600;color:#eaf5f2;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);
  padding:5px 13px;border-radius:999px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-panel{
  background:rgba(255,255,255,.97);
  border-radius:var(--radius-lg);
  padding:24px 22px;
  box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.6);
}
.hero-panel-title{font-size:14px;font-weight:700;color:var(--brand-dark);display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.hero-panel-title i{color:var(--accent);}
.order-list{display:flex;flex-direction:column;gap:10px;}
.order-item{display:flex;align-items:flex-start;gap:11px;font-size:13.8px;color:var(--ink-soft);line-height:1.6;}
.order-num{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:800;display:flex;align-items:center;justify-content:center;
  margin-top:2px;
}
.hero-panel-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line-strong);
  font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;
}
.hero-panel-foot strong{color:var(--accent-dark);}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:36px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);
  text-transform:uppercase;margin-bottom:10px;
}
.section-kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--accent);}
.section-title{font-size:28px;letter-spacing:.3px;}
.section-desc{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- grids & cards ---------- */
.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;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.icon-badge{
  width:46px;height:46px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:21px;margin-bottom:16px;
}
.card h3{font-size:18px;margin-bottom:9px;}
.card p{font-size:14.5px;color:var(--ink-soft);line-height:1.8;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
}
.tag-accent{background:var(--accent-soft);color:var(--accent-dark);}

/* ---------- scene cards ---------- */
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.scene-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;}
.scene-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.scene-body h3{font-size:17.5px;margin:0;}
.scene-body p{font-size:14.3px;color:var(--ink-soft);line-height:1.8;margin:0;}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;}
.split h2{font-size:27px;margin-bottom:14px;}
.split p{font-size:15px;color:var(--ink-soft);line-height:1.85;}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
.check-item{display:flex;gap:11px;align-items:flex-start;font-size:14.6px;color:var(--ink-soft);}
.check-item i{color:var(--brand);font-size:17px;line-height:1.6;flex:0 0 auto;}
.formula-panel{
  background:linear-gradient(160deg,#0d3a34,#0a2b27);
  border-radius:var(--radius-lg);padding:28px 26px;color:#e9f3f0;
  box-shadow:var(--shadow-md);
}
.formula-panel h4{color:#fff;font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.formula-panel h4 i{color:#f0c46b;}
.formula-row{
  display:flex;justify-content:space-between;gap:14px;
  padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.16);
  font-size:14px;color:rgba(255,255,255,.86);
}
.formula-row:last-of-type{border-bottom:none;}
.formula-row strong{color:#f0c46b;font-weight:700;}
.formula-total{
  margin-top:16px;padding:12px 14px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(240,196,107,.32);
  font-size:14px;color:#f4e3bd;
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;position:relative;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-size:13px;font-weight:800;color:var(--accent-dark);
  background:var(--accent-soft);border-radius:7px;
  display:inline-block;padding:3px 9px;margin-bottom:12px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-soft);line-height:1.78;margin:0;}

/* ---------- param list ---------- */
.param-list{display:flex;flex-direction:column;gap:14px;}
.param-row{
  display:grid;grid-template-columns:.9fr 1.6fr .9fr;
  gap:18px;align-items:center;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.param-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong);}
.param-name{font-size:15.5px;font-weight:800;color:var(--ink);}
.param-name small{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin-top:4px;letter-spacing:.3px;}
.param-desc{font-size:14.2px;color:var(--ink-soft);line-height:1.75;}
.param-range{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;}
.param-range .tag{font-variant-numeric:tabular-nums;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.news-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 20px;box-shadow:var(--shadow-sm);height:100%;
  color:var(--ink);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong);color:var(--ink);}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-date{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;}
.news-card h3{font-size:16.5px;margin:0;line-height:1.55;}
.news-card p{font-size:14px;color:var(--ink-soft);line-height:1.75;margin:0;}
.news-more{font-size:13.5px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px;margin-top:auto;}
.news-card:hover .news-more{color:var(--accent-dark);}
.empty-note{
  background:var(--surface);border:1px dashed var(--line-strong);
  border-radius:var(--radius);padding:30px;text-align:center;
  color:var(--muted);font-size:14.5px;
}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow-md);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;
  font-size:15.5px;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 i{color:var(--brand);transition:transform .22s ease;flex:0 0 auto;}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-answer{padding:0 22px 20px;font-size:14.5px;color:var(--ink-soft);line-height:1.85;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:#0b2a27 url('/assets/images/c99ca5c844f9ed29.webp') center/cover no-repeat;
  border-radius:var(--radius-lg);
  padding:46px 44px;
  box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(7,33,30,.95),rgba(9,45,40,.72));
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.86);font-size:14.8px;line-height:1.8;max-width:620px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{background:#0c2623;color:#cfdedb;padding:56px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:36px;padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px;color:#fff;}
.footer-brand strong{font-size:16.5px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(207,222,219,.8);margin:0;max-width:420px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.4px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{color:rgba(207,222,219,.82);font-size:14px;}
.footer-col a:hover{color:#f0c46b;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(207,222,219,.66);
}
.footer-bottom .tech{font-variant-numeric:tabular-nums;letter-spacing:.4px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:56px 0 52px;}
  .hero-title{font-size:33px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;gap:28px;}
  .param-row{grid-template-columns:1fr;gap:10px;}
  .param-range{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .nav-toggle{display:inline-flex;}
  .channelbar{display:none;}
  .channelbar.open{display:block;}
  .channel-inner{min-height:auto;padding:8px 0 10px;}
  .channel-tabs{flex-wrap:nowrap;}
  .cta-top{display:none;}
  .section{padding:54px 0;}
  .hero-title{font-size:29px;}
  .section-title{font-size:24px;}
  .grid-2{grid-template-columns:1fr;}
  .cta-band{padding:34px 24px;}
  .cta-inner h2{font-size:22px;}
  .site-footer{margin-top:54px;}
}
@media (max-width:520px){
  body{font-size:14.5px;}
  .grid-3,.grid-4,.news-grid,.steps{grid-template-columns:1fr;}
  .hero-title{font-size:25.5px;line-height:1.32;}
  .hero-sub{font-size:14.6px;}
  .hero-inner{padding:44px 0 42px;}
  .card{padding:22px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .cta-top{display:none;}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}