/* roulang page: index */
:root{
  --primary:#009E8E;
  --primary-dark:#00796D;
  --primary-light:#E3F6F3;
  --orange:#FF7A45;
  --yellow:#FFC53D;
  --ink:#0F1A1C;
  --text:#4B5A5C;
  --muted:#7B8A8C;
  --border:#E4E9E8;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --radius-card:22px;
  --radius-lg:28px;
  --radius-sm:12px;
  --shadow-1:0 2px 6px rgba(15,26,28,.05);
  --shadow-2:0 12px 28px rgba(15,26,28,.10);
  --shadow-3:0 18px 40px rgba(15,26,28,.14);
  --grad:linear-gradient(135deg,#009E8E 0%,#00C2A8 55%,#7FE3C9 100%);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary-dark);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:-.01em;margin:0;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--primary-dark);background:var(--primary-light);
  padding:6px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
.section-head p{margin-top:12px;font-size:15px;color:var(--muted);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(15,26,28,.08);}
.brand-row{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex:0 0 auto;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;box-shadow:0 6px 16px rgba(0,158,142,.28);
}
.brand-divider{width:1px;height:24px;background:var(--border);flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-name{
  font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.08em;}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;
  transition:all .22s ease;
}
.icon-btn:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-light);transform:translateY(-2px);}
.help-link{font-size:14px;font-weight:600;color:var(--text);white-space:nowrap;}
.help-link:hover{color:var(--primary);}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;border:1px solid var(--primary);
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;
  transition:all .22s ease;box-shadow:0 6px 16px rgba(0,158,142,.22);
}
.btn-main:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-main:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.55);
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;transition:all .22s ease;
}
.btn-ghost:hover{background:#fff;color:var(--primary-dark);border-color:#fff;transform:translateY(-2px);}
.btn-ghost-dark{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--primary-dark);border:1px solid var(--border);
  padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;transition:all .22s ease;
}
.btn-ghost-dark:hover{border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-2);}

.channel-row{
  display:flex;align-items:center;gap:10px;
  height:56px;overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--border);background:#fff;color:var(--text);
  font-size:14px;font-weight:600;white-space:nowrap;transition:all .2s ease;
}
.chip:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-light);}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(0,158,142,.22);}

/* ---------- hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:
    linear-gradient(135deg,rgba(6,52,48,.86) 0%,rgba(0,105,96,.80) 50%,rgba(0,158,142,.72) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-inner{padding:76px 0 84px;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.hero h1{color:#fff;font-size:clamp(30px,4.4vw,46px);line-height:1.24;letter-spacing:-.01em;}
.hero-sub{margin-top:18px;font-size:17px;color:rgba(255,255,255,.9);max-width:520px;}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-badges{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);
  color:#fff;font-size:13px;font-weight:600;
}
.hero-badge i{color:#7FE3C9;}
.hero-cover{
  border-radius:var(--radius-lg);overflow:hidden;position:relative;
  box-shadow:0 24px 56px rgba(0,0,0,.28);
  aspect-ratio:16/11;background:var(--grad);
}
.hero-cover img{width:100%;height:100%;object-fit:cover;}
.hero-cover-tags{
  position:absolute;left:16px;bottom:16px;display:flex;flex-wrap:wrap;gap:8px;
}
.hero-cover-tags span{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.92);color:var(--primary-dark);
  font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px;
}
.hero-cover-tags span i{color:var(--orange);}

/* ---------- cards ---------- */
.card-soft{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:all .26s ease;overflow:hidden;height:100%;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#C9EDE6;}
.cover-16x9{aspect-ratio:16/9;overflow:hidden;background:var(--grad);}
.cover-16x9 img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-soft:hover .cover-16x9 img{transform:scale(1.04);}
.card-body-p{padding:20px 22px 24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;
}
.tag-orange{background:rgba(255,122,69,.12);color:#D9531E;}
.meta-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);}
.meta-row i{color:var(--primary);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.mini-arrow{
  width:34px;height:34px;border-radius:50%;background:var(--primary-light);color:var(--primary-dark);
  display:inline-flex;align-items:center;justify-content:center;transition:all .22s ease;
}
.card-soft:hover .mini-arrow{background:var(--primary);color:#fff;transform:translateX(3px);}

.collection-card .card-body-p{display:flex;align-items:center;justify-content:space-between;gap:14px;}
.collection-card h3{font-size:18px;margin-bottom:8px;}
.badge-count{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,122,69,.12);color:#D9531E;
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;
}

/* ---------- latest ---------- */
.post-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:all .26s ease;height:100%;display:flex;flex-direction:column;}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#C9EDE6;}
.post-card .card-body-p{display:flex;flex-direction:column;gap:12px;flex:1;}
.post-title{font-size:18px;line-height:1.5;}
.post-title a{color:var(--ink);}
.post-title a:hover{color:var(--primary-dark);}
.post-desc{font-size:14.5px;color:var(--muted);}
.empty-state{
  border:1px dashed #C9EDE6;background:#fff;border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;
}
.empty-state .ico{
  width:58px;height:58px;border-radius:50%;background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px;
}
.empty-state p{color:var(--muted);font-size:15px;}

/* ---------- featured ---------- */
.feature-big{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:360px;background:var(--grad);}
.feature-big img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.feature-big .mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,52,48,.05) 30%,rgba(6,52,48,.86) 100%);
}
.feature-big .inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:30px 32px;color:#fff;}
.feature-big h3{color:#fff;font-size:24px;margin:14px 0 10px;}
.feature-big p{color:rgba(255,255,255,.85);font-size:14.5px;}
.feature-side{display:flex;gap:18px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:16px;box-shadow:var(--shadow-1);transition:all .26s ease;}
.feature-side:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#C9EDE6;}
.feature-side .thumb{flex:0 0 40%;aspect-ratio:16/10;border-radius:16px;overflow:hidden;background:var(--grad);}
.feature-side .thumb img{width:100%;height:100%;object-fit:cover;}
.feature-side h3{font-size:17px;line-height:1.5;margin:10px 0 8px;}

/* ---------- stats ---------- */
.stats-band{background:var(--grad);border-radius:var(--radius-lg);padding:42px 32px;position:relative;overflow:hidden;}
.stats-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.55) 0%,rgba(255,122,69,0) 70%);
}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center;color:#fff;}
.stat-num{font-size:clamp(26px,3.4vw,38px);font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-label{font-size:13.5px;color:rgba(255,255,255,.88);margin-top:6px;}

/* ---------- recommend scroller ---------- */
.scroll-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.scroll-nav{display:flex;gap:10px;}
.scroll-nav button{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--ink);
  display:flex;align-items:center;justify-content:center;transition:all .22s ease;
}
.scroll-nav button:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px);}
.h-scroll{display:flex;gap:20px;overflow-x:auto;padding:6px 2px 20px;scroll-behavior:smooth;scrollbar-width:thin;}
.h-scroll::-webkit-scrollbar{height:6px;}
.h-scroll::-webkit-scrollbar-thumb{background:#CFE5E1;border-radius:999px;}
.h-item{flex:0 0 300px;}
.h-item .card-body-p{padding:16px 18px 20px;}
.h-item h3{font-size:16px;line-height:1.5;margin-top:10px;}

/* ---------- faq ---------- */
.accordion-item{
  border:1px solid var(--border);border-radius:16px !important;margin-bottom:14px;
  overflow:hidden;background:#fff;box-shadow:var(--shadow-1);
}
.accordion-item .accordion-button{
  background:#fff;color:var(--ink);font-weight:700;font-size:16.5px;
  padding:20px 22px;box-shadow:none;gap:14px;border-radius:16px !important;
}
.accordion-item .accordion-button:not(.collapsed){color:var(--primary-dark);background:#FAFDFC;}
.accordion-item .accordion-button:focus{box-shadow:none;border-color:var(--border);}
.accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  width:30px;height:30px;border-radius:50%;background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:12px;transition:all .28s ease;
  margin-left:auto;flex:0 0 auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);background:var(--primary);color:#fff;}
.accordion-body{padding:0 22px 22px;font-size:15px;color:var(--text);}
.faq-num{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;background:var(--primary-light);color:var(--primary-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
}

/* ---------- cta ---------- */
.cta-banner{
  background:var(--grad);border-radius:var(--radius-lg);padding:56px 32px;text-align:center;color:#fff;
  position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;left:-80px;bottom:-90px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,197,61,.42) 0%,rgba(255,197,61,0) 70%);
}
.cta-banner h2{color:#fff;font-size:clamp(22px,3vw,30px);position:relative;z-index:2;}
.cta-banner p{color:rgba(255,255,255,.9);margin-top:12px;position:relative;z-index:2;}
.cta-actions{position:relative;z-index:2;margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.btn-light-solid{
  display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--primary-dark);
  padding:12px 24px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid #fff;transition:all .22s ease;
}
.btn-light-solid:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);color:var(--primary-dark);}
.btn-outline-light-soft{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);color:#fff;
  padding:12px 24px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid rgba(255,255,255,.6);transition:all .22s ease;
}
.btn-outline-light-soft:hover{background:#fff;color:var(--primary-dark);transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#AEBAB9;padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{color:#fff;font-weight:800;font-size:16px;}
.site-footer p{font-size:14px;line-height:1.9;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px;}
.footer-list a{color:#AEBAB9;font-size:14px;}
.footer-list a:hover{color:#7FE3C9;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8C9A99;
}

@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 64px;}
  .hero-sub{max-width:none;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:30px;}
  .section{padding:72px 0;}
  .brand-sub{display:none;}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px;}
  .brand-row{height:64px;gap:12px;}
  .brand-name{font-size:15px;}
  .help-link{display:none;}
  .btn-main{padding:9px 16px;font-size:13px;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .feature-big{min-height:280px;}
  .feature-big .inner{padding:22px 22px;}
  .feature-side{flex-direction:column;}
  .feature-side .thumb{flex:none;width:100%;}
  .cta-banner{padding:40px 22px;}
  .stats-band{padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575.98px){
  .hero h1{font-size:28px;}
  .h-item{flex:0 0 250px;}
  .scroll-nav{display:none;}
  .stat-num{font-size:26px;}
}

/* roulang page: article */
:root{
  --brand:#009E8E;
  --brand-dark:#00796D;
  --brand-soft:#E3F6F3;
  --brand-mint:#7FE3C9;
  --orange:#FF7A45;
  --yellow:#FFC53D;
  --ink:#0F1A1C;
  --text:#4B5A5C;
  --muted:#8A999B;
  --line:#E4E9E8;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --radius-card:22px;
  --radius-big:28px;
  --radius-btn:999px;
  --shadow-1:0 2px 6px rgba(15,26,28,.05);
  --shadow-2:0 12px 28px rgba(15,26,28,.10);
  --shadow-3:0 18px 40px rgba(15,26,28,.14);
  --grad:linear-gradient(135deg,#009E8E 0%,#00C2A8 55%,#7FE3C9 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 8px 26px rgba(15,26,28,.09)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;background:var(--grad);
  color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 8px 18px rgba(0,158,142,.28);
}
.brand-divider{width:1px;height:28px;background:var(--line);flex:0 0 1px}
.brand-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:12px;color:var(--muted)}
.brand-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);
  cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .2s;
}
.icon-btn:hover{background:var(--brand-soft);border-color:#BEE9E2;color:var(--brand-dark);transform:translateY(-1px)}
.help-link{font-size:14px;color:var(--text);transition:color .2s}
.help-link:hover{color:var(--brand-dark)}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:var(--radius-btn);
  background:var(--grad);color:#fff;font-size:14px;font-weight:700;box-shadow:0 8px 20px rgba(0,158,142,.24);
  transition:transform .22s,box-shadow .22s,filter .22s;
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,158,142,.32);filter:brightness(1.06)}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 14px rgba(0,158,142,.24)}
.channel-row{
  display:flex;gap:10px;padding:0 0 12px;overflow-x:auto;scrollbar-width:none;white-space:nowrap;
}
.channel-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;height:36px;display:inline-flex;align-items:center;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:14px;color:var(--text);
  transition:background .2s,color .2s,border-color .2s,box-shadow .2s;
}
.chip:hover{background:var(--brand-soft);border-color:#BEE9E2;color:var(--brand-dark)}
.chip.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(0,158,142,.24)}

/* ============ hero ============ */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:44px 0 118px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(6,54,50,.85) 0%,rgba(9,74,68,.76) 48%,rgba(0,158,142,.66) 100%);
}
.article-hero .wrap{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:22px}
.crumbs a{color:rgba(255,255,255,.9)}
.crumbs a:hover{color:#fff;text-decoration:underline}
.crumbs .sep{color:rgba(255,255,255,.5)}
.crumbs .now{color:#fff;font-weight:600}
.hero-cat{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.32);color:#fff;font-size:13px;font-weight:600;
  backdrop-filter:blur(4px);margin-bottom:18px;
}
.article-hero h1{
  color:#fff;font-size:clamp(28px,4.2vw,44px);font-weight:800;line-height:1.28;letter-spacing:-.01em;
  max-width:960px;margin-bottom:22px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px}
.meta-badge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.26);
  color:rgba(255,255,255,.94);font-size:13px;
}
.meta-badge i{color:var(--brand-mint)}
.meta-badge b{color:#fff;font-weight:700}

/* ============ cover ============ */
.article-cover-shell{position:relative;z-index:3;margin-top:-84px}
.article-cover{
  border-radius:var(--radius-big);overflow:hidden;background:var(--grad);
  box-shadow:var(--shadow-3);aspect-ratio:16/9;
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.cover-caption{
  margin-top:12px;text-align:center;font-size:13px;color:var(--muted);
}

/* ============ layout ============ */
.article-body{padding:56px 0 80px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 260px;
  gap:56px;justify-content:center;align-items:start;
}
.reading-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-big);
  padding:44px 48px;box-shadow:var(--shadow-1);
}
.prose{font-size:16.5px;line-height:1.9;color:#3C4A4C}
.prose > *:first-child{margin-top:0}
.prose p{margin:0 0 1.25em}
.prose > p:first-of-type{
  font-size:18px;line-height:1.85;color:#2E4345;font-weight:500;
  padding-bottom:20px;border-bottom:1px dashed var(--line);margin-bottom:28px;
}
.prose h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:800;color:var(--ink);line-height:1.42;
  margin:2.1em 0 .85em;padding-left:14px;border-left:4px solid var(--brand);scroll-margin-top:120px;
}
.prose h3{font-size:20px;font-weight:700;color:var(--ink);margin:1.7em 0 .6em;scroll-margin-top:120px}
.prose h4{font-size:17px;font-weight:700;color:var(--ink);margin:1.4em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.35em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.55em;padding-left:.15em}
.prose ul li::marker{color:var(--brand);font-size:1.05em}
.prose ol li::marker{color:var(--brand);font-weight:700}
.prose blockquote{
  margin:1.5em 0;padding:18px 22px;background:var(--brand-soft);
  border-left:4px solid var(--brand);border-radius:8px;color:#2C3E3F;font-style:normal;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:16px;margin:1.6em auto;box-shadow:var(--shadow-1)}
.prose figure{margin:1.8em 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.prose a{color:var(--brand-dark);border-bottom:1px solid rgba(0,158,142,.4)}
.prose a:hover{border-bottom-color:var(--brand)}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.prose table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.prose th{background:var(--brand-soft);color:var(--ink);font-weight:700}
.prose strong{color:var(--ink)}
.prose code{background:var(--brand-soft);color:var(--brand-dark);padding:2px 6px;border-radius:6px;font-size:.92em}

/* TOC */
.toc-card{
  position:sticky;top:112px;background:var(--card);border:1px solid var(--line);
  border-radius:20px;padding:22px 20px;box-shadow:var(--shadow-1);
}
.toc-title{font-size:14px;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:8px;margin-bottom:14px}
.toc-title i{color:var(--brand)}
.toc-list a{
  display:block;font-size:13.5px;color:var(--text);padding:7px 10px;border-radius:10px;
  border-left:3px solid transparent;line-height:1.5;transition:all .2s;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.toc-list a.on{background:var(--brand-soft);color:var(--brand-dark);border-left-color:var(--brand);font-weight:700}
.toc-empty{font-size:13px;color:var(--muted)}

/* tags */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.tag-label{font-size:13px;color:var(--muted);font-weight:700}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:600;
  transition:background .2s,transform .2s;
}
.tag:hover{background:#CDEDE8;transform:translateY(-1px)}

/* prev / next */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px}
.pager a{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px 22px;
  box-shadow:var(--shadow-1);transition:transform .22s,box-shadow .22s,border-color .22s;
}
.pager a:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#BEE9E2}
.pager .p-label{font-size:12.5px;color:var(--brand);font-weight:700;letter-spacing:.04em;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.pager .p-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pager .p-desc{font-size:13px;color:var(--muted);margin-top:6px}
.pager .right{text-align:right}
.pager .right .p-label{justify-content:flex-end}

/* section head */
.sec{padding:72px 0}
.sec.soft{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:800}
.sec-head p{font-size:14px;color:var(--muted);margin-top:8px}
.sec-head .more{font-size:14px;color:var(--brand-dark);font-weight:700;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-head .more:hover{gap:10px;transition:gap .2s}

/* related cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .24s,box-shadow .24s,border-color .24s;display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#BEE9E2}
.post-card .thumb{aspect-ratio:16/9;background:var(--grad);overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.post-card:hover .thumb img{transform:scale(1.05)}
.post-card .pc-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card .pc-body h3{
  font-size:17px;font-weight:700;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .pc-body h3 a:hover{color:var(--brand-dark)}
.post-card .pc-body p{
  font-size:13.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.pc-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:6px}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:700;
}
.time-note{font-size:12.5px;color:var(--muted);display:inline-flex;align-items:center;gap:6px}

/* back cta */
.back-band{
  border-radius:var(--radius-big);background:var(--grad);position:relative;overflow:hidden;
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;color:#fff;
  box-shadow:0 18px 40px rgba(0,158,142,.24);
}
.back-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.65),rgba(255,122,69,0) 70%);
}
.back-band h2{color:#fff;font-size:clamp(20px,2.4vw,26px);font-weight:800;margin-bottom:8px}
.back-band p{color:rgba(255,255,255,.92);font-size:14.5px;max-width:560px}
.back-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.7);color:#fff;font-size:14px;font-weight:700;background:transparent;
  transition:background .22s,transform .22s,color .22s;
}
.btn-ghost:hover{background:#fff;color:var(--brand-dark);transform:translateY(-2px)}
.btn-white{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:var(--radius-btn);
  background:#fff;color:var(--brand-dark);font-size:14px;font-weight:700;
  transition:transform .22s,box-shadow .22s;
}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.16);color:var(--brand-dark)}

/* empty state */
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-big);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state i{font-size:40px;color:var(--brand);margin-bottom:18px;display:block}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:22px}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:#B7C3C4;padding:66px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:16px;margin-bottom:16px}
.footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:16px;border-radius:12px}
.site-footer p{font-size:14px;line-height:1.85;color:#93A2A4}
.footer-title{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px}
.footer-list li{margin-bottom:11px}
.footer-list a{font-size:14px;color:#B7C3C4;transition:color .2s,padding-left .2s}
.footer-list a:hover{color:var(--brand-mint);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8A999B;
}

/* ============ responsive ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .toc-card{display:none}
}
@media (max-width:992px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .reading-card{padding:34px 30px}
  .sec{padding:56px 0}
}
@media (max-width:768px){
  .wrap{padding:0 16px}
  .brand-sub{display:none}
  .help-link{display:none}
  .btn-main{padding:9px 14px;font-size:13px}
  .article-hero{padding:32px 0 96px}
  .article-cover-shell{margin-top:-64px}
  .article-body{padding:38px 0 56px}
  .pager{grid-template-columns:1fr}
  .pager .right{text-align:left}
  .pager .right .p-label{justify-content:flex-start}
  .back-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .reading-card{padding:26px 20px;border-radius:20px}
  .prose{font-size:16px}
}
@media (max-width:576px){
  .card-grid{grid-template-columns:1fr}
  .brand-name{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start}
  .meta-badge{font-size:12px;height:30px;padding:0 11px}
  .prose > p:first-of-type{font-size:17px}
}

/* roulang page: category1 */
:root{
  --brand:#009E8E;
  --brand-deep:#00796D;
  --brand-light:#E3F6F3;
  --accent:#FF7A45;
  --gold:#FFC53D;
  --ink:#0F1A1C;
  --text:#4B5A5C;
  --muted:#8A9899;
  --line:#E4E9E8;
  --page:#F6F8F7;
  --card:#FFFFFF;
  --grad:linear-gradient(135deg,#009E8E 0%,#00C2A8 52%,#7FE3C9 100%);
  --r-card:22px;
  --r-big:28px;
  --r-btn:999px;
  --sh1:0 2px 6px rgba(15,26,28,.05);
  --sh2:0 12px 28px rgba(15,26,28,.10);
  --sh3:0 18px 40px rgba(15,26,28,.14);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.narrow{max-width:920px;margin:0 auto;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(15,26,28,.08);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:13px 0;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:18px;box-shadow:0 8px 18px rgba(0,158,142,.28);
}
.brand-divider{width:1px;height:28px;background:var(--line);flex:0 0 1px;}
.brand-text{min-width:0;}
.brand-name{display:block;font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand-sub{display:block;font-size:12px;color:var(--muted);margin-top:1px;}
.brand-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--text);cursor:pointer;display:grid;place-items:center;
  transition:all .2s ease;font-size:15px;
}
.icon-btn:hover{color:var(--brand-deep);border-color:#bfe6e0;background:var(--brand-light);}
.help-link{font-size:14px;color:var(--text);}
.help-link:hover{color:var(--brand);}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:var(--r-btn);
  background:var(--grad);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 8px 20px rgba(0,158,142,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn-main:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 28px rgba(0,158,142,.34);}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 14px rgba(0,158,142,.26);}
.channel-row{
  display:flex;align-items:center;gap:10px;
  padding:12px 0 14px;border-top:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;height:36px;display:inline-flex;align-items:center;
  padding:0 17px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:14px;font-weight:600;
  white-space:nowrap;transition:all .2s ease;
}
.chip:hover{background:var(--brand-light);border-color:#bfe6e0;color:var(--brand-deep);}
.chip.active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 8px 18px rgba(0,158,142,.26);}
.search-panel{
  display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0;
}
.search-panel.open{display:block;}
.search-form{display:flex;gap:12px;}
.search-form input{
  flex:1;height:46px;border-radius:12px;border:1px solid var(--line);
  padding:0 16px;font-size:15px;color:var(--ink);background:#fff;transition:all .2s ease;
}
.search-form input:focus{outline:none;border-color:var(--brand);background:var(--brand-light);}
.search-form button{
  height:46px;padding:0 24px;border:none;border-radius:12px;
  background:var(--grad);color:#fff;font-weight:700;font-size:15px;cursor:pointer;
  transition:filter .2s ease;
}
.search-form button:hover{filter:brightness(1.06);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;margin-top:26px;border-radius:var(--r-big);
  overflow:hidden;padding:54px 48px 50px;color:#fff;
  background-image:linear-gradient(120deg,rgba(11,32,34,.90) 0%,rgba(0,94,84,.82) 58%,rgba(0,158,142,.72) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  box-shadow:var(--sh2);
}
.page-hero::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;
  background:radial-gradient(circle,rgba(255,122,69,.55),rgba(255,122,69,0) 68%);
  pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#fff;}
.crumb i{font-size:10px;}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,42px);font-weight:800;letter-spacing:-.01em;
  max-width:760px;line-height:1.25;
}
.page-hero .lead{
  margin-top:16px;font-size:17px;color:rgba(255,255,255,.88);max-width:640px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 14px;
  border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:600;
}
.hero-tag i{color:var(--gold);font-size:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.btn-solid{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 28px;
  border-radius:var(--r-btn);background:#fff;color:var(--brand-deep);
  font-weight:700;font-size:15px;transition:all .22s ease;
}
.btn-solid:hover{color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 16px 30px rgba(0,0,0,.22);filter:brightness(1.04);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 26px;
  border-radius:var(--r-btn);background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.55);color:#fff;font-weight:600;font-size:15px;
  transition:all .22s ease;
}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.2);transform:translateY(-2px);}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-sm{padding:56px 0;}
.section-head{max-width:660px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;
  border-radius:999px;background:var(--brand-light);color:var(--brand-deep);
  font-size:13px;font-weight:700;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.6vw,31px);}
.section-head p{margin-top:12px;font-size:15.5px;color:var(--muted);}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px 24px;box-shadow:var(--sh1);position:relative;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#bfe6e0;}
.step-num{
  font-size:40px;font-weight:800;line-height:1;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.step-card h3{margin-top:16px;font-size:19px;}
.step-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text);}
.step-card::after{
  content:"";position:absolute;left:22px;top:0;width:46px;height:4px;border-radius:0 0 6px 6px;
  background:var(--grad);
}

/* device */
.device-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:stretch;}
.device-media{
  border-radius:var(--r-big);overflow:hidden;background:#0F1A1C;box-shadow:var(--sh2);position:relative;
}
.device-media img{width:100%;height:100%;min-height:300px;object-fit:cover;aspect-ratio:16/9;}
.device-media .cap{
  position:absolute;left:22px;bottom:20px;right:22px;color:#fff;
}
.device-media .cap strong{display:block;font-size:18px;}
.device-media .cap span{font-size:13.5px;color:rgba(255,255,255,.82);}
.device-media::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,28,30,.82),rgba(10,28,30,.05) 62%);
}
.device-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-big);
  padding:30px 28px;box-shadow:var(--sh1);display:flex;flex-direction:column;gap:20px;
}
.device-card h3{font-size:21px;}
.qr-row{display:flex;align-items:center;gap:20px;}
.qr-box{
  width:132px;height:132px;flex:0 0 132px;border-radius:20px;
  border:2px dashed #a9e0d8;background:var(--brand-light);
  display:grid;place-items:center;color:var(--brand-deep);font-size:30px;
}
.qr-text{font-size:14.5px;line-height:1.8;}
.qr-text strong{display:block;color:var(--ink);font-size:15.5px;margin-bottom:6px;}
.mini-list{display:grid;gap:12px;}
.mini-list li{display:flex;gap:11px;font-size:14.5px;line-height:1.75;}
.mini-list i{color:var(--brand);margin-top:5px;font-size:13px;flex:0 0 auto;}

/* confirm block */
.confirm-band{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-big);
  padding:38px 36px;box-shadow:var(--sh1);
}
.confirm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px;}
.confirm-item{
  border-left:4px solid var(--brand);background:var(--brand-light);
  border-radius:12px;padding:20px 20px 18px;
}
.confirm-item h4{font-size:16.5px;display:flex;align-items:center;gap:9px;}
.confirm-item h4 i{color:var(--accent);font-size:14px;}
.confirm-item p{margin-top:9px;font-size:14.5px;line-height:1.8;}
.stat-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.stat-badge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 15px;
  border-radius:999px;background:var(--brand-light);color:var(--brand-deep);
  font-size:13.5px;font-weight:700;
}
.stat-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.stat-badge b{font-variant-numeric:tabular-nums;color:var(--accent);font-size:15px;}

/* faq */
.faq-wrap{max-width:820px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line);border-radius:16px;background:#fff;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh1);
}
.accordion-button{
  font-size:16px;font-weight:700;color:var(--ink);background:#fff;
  padding:20px 22px;box-shadow:none;gap:14px;
}
.accordion-button:not(.collapsed){
  background:var(--brand-light);color:var(--brand-deep);
  box-shadow:inset 4px 0 0 var(--brand);
}
.accordion-button:focus{box-shadow:none;}
.accordion-button::after{
  transition:transform .25s ease;background-size:1rem;flex:0 0 auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);filter:hue-rotate(120deg);}
.accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--text);}
.accordion-body strong{color:var(--ink);}

/* cta band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-big);
  background:var(--grad);padding:52px 40px;text-align:center;color:#fff;
  box-shadow:var(--sh2);
}
.cta-band::after{
  content:"";position:absolute;left:-60px;top:-80px;width:240px;height:240px;
  background:radial-gradient(circle,rgba(255,122,69,.5),rgba(255,122,69,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(23px,2.6vw,30px);position:relative;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.9);font-size:15.5px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;position:relative;}
.btn-cta{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 28px;
  border-radius:var(--r-btn);background:#fff;color:var(--brand-deep);
  font-weight:700;font-size:15px;border:none;cursor:pointer;transition:all .22s ease;
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(0,0,0,.2);color:var(--brand-deep);}
.btn-cta-outline{
  display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 26px;
  border-radius:var(--r-btn);background:transparent;color:#fff;
  border:1px solid rgba(255,255,255,.62);font-weight:600;font-size:15px;cursor:pointer;
  transition:all .22s ease;
}
.btn-cta-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);color:#fff;}

/* footer */
.site-footer{margin-top:80px;background:var(--ink);color:#9FB0B2;padding:62px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:15px;border-radius:12px;}
.site-footer p{font-size:14px;line-height:1.9;color:#8FA2A4;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-list li{margin-bottom:11px;}
.footer-list a{color:#9FB0B2;font-size:14px;}
.footer-list a:hover{color:#7FE3C9;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:#7C8E90;
}

/* responsive */
@media (max-width:1200px){
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .device-grid{grid-template-columns:1fr;}
  .device-media img{min-height:240px;}
  .confirm-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .wrap{padding:0 16px;}
  .brand-sub{display:none;}
  .help-link{display:none;}
  .page-hero{padding:38px 24px 34px;border-radius:24px;}
  .page-hero .lead{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .confirm-grid{grid-template-columns:1fr;}
  .confirm-band{padding:28px 22px;}
  .device-card{padding:24px 22px;}
  .qr-row{flex-direction:column;align-items:flex-start;gap:16px;}
  .cta-band{padding:40px 24px;border-radius:24px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding-top:48px;}
}
@media (max-width:576px){
  .brand-name{font-size:15px;white-space:normal;line-height:1.35;}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;}
  .brand-divider{display:none;}
  .btn-main{padding:9px 16px;font-size:13px;}
  .btn-main i{display:none;}
  .hero-actions .btn-solid,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .cta-actions .btn-cta,.cta-actions .btn-cta-outline{width:100%;justify-content:center;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --main:#009E8E;
  --main-dark:#00796D;
  --main-soft:#E3F6F3;
  --orange:#FF7A45;
  --yellow:#FFC53D;
  --ink:#0F1A1C;
  --text:#4B5A5C;
  --line:#E4E9E8;
  --page:#F6F8F7;
  --card:#FFFFFF;
  --grad:linear-gradient(135deg,#009E8E 0%,#00C2A8 55%,#7FE3C9 100%);
  --r-card:22px;
  --r-big:28px;
  --r-btn:12px;
  --sh1:0 2px 6px rgba(15,26,28,.05);
  --sh2:0 12px 28px rgba(15,26,28,.10);
  --sh3:0 18px 40px rgba(15,26,28,.14);
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.28;}
p{margin:0;}
a{color:var(--main-dark);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--main);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px;}

.wrap{max-width:var(--w);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,26,28,.08);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px;}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;box-shadow:0 6px 16px rgba(0,158,142,.28);
}
.brand-divider{width:1px;height:26px;background:var(--line);}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;line-height:1.2;}
.brand-sub{font-size:12px;color:#8A999B;line-height:1.4;letter-spacing:.02em;}
.brand-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--text);display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .2s ease;
}
.icon-btn:hover{background:var(--main-soft);color:var(--main-dark);border-color:#BFE9E2;}
.help-link{font-size:14px;color:var(--text);}
.help-link:hover{color:var(--main-dark);}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;border-radius:999px;border:0;
  background:var(--grad);color:#fff;font-size:14.5px;font-weight:700;
  box-shadow:0 6px 18px rgba(0,158,142,.25);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-main:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,158,142,.32);}
.btn-main:active{transform:translateY(0);filter:brightness(.97);}
.channel-row{
  display:flex;align-items:center;gap:10px;
  padding:10px 0 12px;overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--text);transition:all .2s ease;
}
.chip:hover{background:var(--main-soft);border-color:#BFE9E2;color:var(--main-dark);}
.chip.active{background:var(--main);border-color:var(--main);color:#fff;font-weight:600;box-shadow:0 6px 16px rgba(0,158,142,.24);}

/* ---------- page banner ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-radius:0 0 var(--r-big) var(--r-big);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(0,58,52,.90) 0%,rgba(0,158,142,.76) 62%,rgba(0,194,168,.68) 100%);
}
.page-hero .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.82);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.4vw,46px);font-weight:800;max-width:16em;
  text-shadow:0 2px 14px rgba(0,0,0,.18);
}
.page-hero .lead{
  color:rgba(255,255,255,.94);font-size:17px;margin-top:14px;max-width:34em;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hbadge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 16px;
  border-radius:999px;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.32);
  color:#fff;font-size:13.5px;backdrop-filter:blur(2px);
}
.hbadge .dot{width:6px;height:6px;border-radius:50%;background:var(--yellow);}

/* ---------- guide layout ---------- */
.guide-sec{padding:72px 0 24px;}
.guide-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start;}
.guide-toc{
  position:sticky;top:118px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 18px;box-shadow:var(--sh1);
}
.toc-head{
  display:flex;align-items:center;gap:8px;font-size:14px;font-weight:800;color:var(--ink);
  padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:12px;
}
.toc-head i{color:var(--main);}
.toc-nav{display:flex;flex-direction:column;gap:4px;}
.toc-link{
  display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:12px;
  font-size:14.2px;color:var(--text);border-left:3px solid transparent;
  transition:all .2s ease;
}
.toc-link .toc-num{
  font-size:12px;font-weight:700;color:var(--main-dark);
  font-variant-numeric:tabular-nums;
  background:var(--main-soft);border-radius:8px;padding:1px 6px;
}
.toc-link:hover{background:#F1F7F6;color:var(--main-dark);}
.toc-link.active{
  background:var(--main-soft);border-left-color:var(--main);
  color:var(--main-dark);font-weight:700;
}
.toc-tip{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);font-size:12.8px;color:#8A999B;}

.guide-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-big);
  padding:8px 36px 28px;box-shadow:var(--sh1);
}
.guide-item{padding:40px 0;border-top:1px solid var(--line);scroll-margin-top:130px;}
.guide-item:first-child{border-top:0;}
.item-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.item-index{
  font-size:13px;font-weight:800;color:#fff;background:var(--grad);
  border-radius:10px;padding:3px 10px;font-variant-numeric:tabular-nums;
}
.item-head h2{font-size:clamp(20px,2.2vw,26px);}
.item-grid{display:grid;grid-template-columns:minmax(0,0.86fr) minmax(0,1.14fr);gap:32px;align-items:center;}
.item-grid.alt .item-media{order:2;}
.item-grid.alt .item-body{order:1;}
.item-media{
  border-radius:20px;overflow:hidden;aspect-ratio:16/9;
  background:linear-gradient(135deg,#E3F6F3,#BEEAE2);
  box-shadow:var(--sh1);
}
.item-media img{width:100%;height:100%;object-fit:cover;border-radius:20px;transition:transform .45s ease;}
.guide-item:hover .item-media img{transform:scale(1.04);}
.item-body p{margin-bottom:12px;font-size:15.6px;}
.item-body p:last-of-type{margin-bottom:0;}
.dot-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.dot-list li{position:relative;padding-left:20px;font-size:14.8px;color:var(--text);}
.dot-list li::before{
  content:"";position:absolute;left:2px;top:9px;
  width:7px;height:7px;border-radius:50%;background:var(--main);
}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.mini-tags span{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--main-soft);color:var(--main-dark);font-size:12.6px;
}
.mini-tags span.warn{background:#FFF1EA;color:#C1502A;}

/* ---------- stat band ---------- */
.stat-band{padding:56px 0 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#BFE9E2;}
.stat-num{
  font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1;
}
.stat-num em{font-style:normal;color:var(--orange);font-size:.62em;margin-left:4px;}
.stat-label{margin-top:8px;font-size:13.5px;color:#8A999B;}

/* ---------- checklist ---------- */
.check-sec{padding:72px 0 0;}
.sec-head{margin-bottom:28px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:var(--main-soft);color:var(--main-dark);font-size:12.8px;font-weight:600;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(23px,2.8vw,30px);}
.sec-head p{margin-top:10px;max-width:44em;font-size:15.4px;}
.check-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;
  box-shadow:var(--sh1);transition:all .25s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#BFE9E2;}
.check-card .cc-icon{
  width:40px;height:40px;border-radius:12px;background:var(--main-soft);color:var(--main-dark);
  display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:14px;
}
.check-card h3{font-size:17.5px;margin-bottom:8px;}
.check-card p{font-size:14.4px;}

/* ---------- FAQ ---------- */
.faq-sec{padding:72px 0 0;}
.accordion-item{
  border:1px solid var(--line) !important;border-radius:16px !important;overflow:hidden;
  margin-bottom:12px;background:var(--card);
}
.accordion-button{
  background:var(--card);color:var(--ink);font-weight:700;font-size:16px;
  padding:18px 20px;box-shadow:none !important;gap:14px;
}
.accordion-button:not(.collapsed){
  background:#F3FAF8;color:var(--main-dark);
  box-shadow:inset 4px 0 0 var(--main) !important;
}
.accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--text);transition:transform .25s ease,color .25s ease;
  width:auto;height:auto;transform:none;display:flex;align-items:center;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--main);}
.accordion-button .q-num{
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 26px;
  width:26px;height:26px;border-radius:9px;background:var(--main-soft);color:var(--main-dark);
  font-size:12.5px;font-weight:800;font-variant-numeric:tabular-nums;
}
.accordion-button:not(.collapsed) .q-num{background:var(--main);color:#fff;}
.accordion-body{padding:4px 22px 20px 60px;font-size:15.4px;color:var(--text);}

/* ---------- CTA ---------- */
.cta-sec{padding:72px 0 88px;}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-big);
  background:var(--grad);padding:52px 40px;text-align:center;color:#fff;
  box-shadow:0 20px 44px rgba(0,158,142,.26);
}
.cta-band::before{
  content:"";position:absolute;width:260px;height:260px;border-radius:50%;
  background:rgba(255,122,69,.32);filter:blur(46px);right:-60px;top:-90px;
}
.cta-band::after{
  content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.16);filter:blur(50px);left:-70px;bottom:-110px;
}
.cta-band .cta-inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.7vw,29px);}
.cta-band p{color:rgba(255,255,255,.94);margin-top:12px;font-size:15.6px;max-width:40em;margin-left:auto;margin-right:auto;}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px;}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;
  background:#fff;color:var(--main-dark);font-weight:700;font-size:15px;border:0;
  box-shadow:0 10px 24px rgba(0,0,0,.14);transition:all .2s ease;
}
.btn-solid:hover{color:var(--main-dark);transform:translateY(-2px);box-shadow:0 16px 30px rgba(0,0,0,.18);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;
  background:rgba(255,255,255,.12);color:#fff;font-weight:700;font-size:15px;
  border:1px solid rgba(255,255,255,.55);transition:all .2s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#A7B4B5;padding:64px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:14px;}
.site-footer p{font-size:14.2px;line-height:1.85;color:#93A2A3;max-width:30em;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-list li{margin-bottom:10px;font-size:14.2px;}
.footer-list a{color:#A7B4B5;}
.footer-list a:hover{color:#3FD9C4;}
.footer-bottom{
  margin-top:44px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.4px;color:#869596;
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .guide-layout{grid-template-columns:236px minmax(0,1fr);gap:32px;}
  .guide-list{padding:8px 28px 24px;}
}
@media (max-width:992px){
  .guide-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .guide-toc{position:static;}
  .toc-nav{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:8px;padding-bottom:4px;}
  .toc-link{flex:0 0 auto;border-left:0;border-bottom:3px solid transparent;background:#F5F9F8;}
  .toc-link.active{border-left:0;border-bottom-color:var(--main);}
  .toc-tip{display:none;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .check-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .wrap{padding:0 16px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15.5px;}
  .help-link{display:none;}
  .guide-list{padding:4px 20px 20px;border-radius:var(--r-card);}
  .item-grid{grid-template-columns:minmax(0,1fr);gap:20px;}
  .item-grid.alt .item-media{order:1;}
  .item-grid.alt .item-body{order:2;}
  .guide-item{padding:32px 0;}
  .page-hero .wrap{padding-top:40px;padding-bottom:40px;}
  .accordion-body{padding:4px 18px 18px 20px;}
  .cta-band{padding:40px 22px;}
  .stat-band,.check-sec,.faq-sec{padding-top:52px;}
  .guide-sec{padding-top:48px;}
}
@media (max-width:576px){
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:15px;}
  .brand-divider{display:none;}
  .btn-main{height:38px;padding:0 15px;font-size:13.5px;}
  .icon-btn{width:34px;height:34px;border-radius:10px;}
  .stat-grid,.check-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{justify-content:center;text-align:center;}
  .cta-btns .btn-solid,.cta-btns .btn-ghost{width:100%;justify-content:center;}
}

/* roulang page: category3 */
:root{
  --brand:#009E8E;
  --brand-dark:#00796D;
  --brand-soft:#E3F6F3;
  --orange:#FF7A45;
  --yellow:#FFC53D;
  --ink:#0F1A1C;
  --text:#4B5A5C;
  --muted:#7A8889;
  --line:#E4E9E8;
  --bg:#F6F8F7;
  --card:#FFFFFF;
  --grad:linear-gradient(135deg,#009E8E 0%,#00C2A8 55%,#7FE3C9 100%);
  --grad-deep:linear-gradient(150deg,rgba(6,45,43,.92) 0%,rgba(0,121,109,.78) 52%,rgba(0,158,142,.62) 100%);
  --r-sm:12px;
  --r-card:22px;
  --r-big:28px;
  --sh-1:0 2px 6px rgba(15,26,28,.05);
  --sh-2:0 12px 28px rgba(15,26,28,.10);
  --sh-3:0 18px 40px rgba(15,26,28,.14);
  --sp-1:56px;
  --sp-2:72px;
  --sp-3:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.28;}
p{margin:0;}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-2) 0;}
.section-tight{padding:var(--sp-1) 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);}
.sec-head .sec-desc{margin-top:8px;font-size:15px;color:var(--muted);max-width:640px;}
.sec-more{font-size:14px;font-weight:700;white-space:nowrap;border-bottom:2px solid transparent;padding-bottom:2px;}
.sec-more:hover{border-bottom-color:var(--brand);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(15,26,28,.09);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0;}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;
  background:var(--grad);color:#fff;display:grid;place-items:center;font-size:18px;
  box-shadow:0 6px 16px rgba(0,158,142,.28);
}
.brand-divider{width:1px;height:26px;background:var(--line);}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.04em;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--ink);display:grid;place-items:center;cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);}
.help-link{font-size:14px;font-weight:600;color:var(--text);padding:8px 4px;}
.help-link:hover{color:var(--brand);}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--grad);color:#fff;font-weight:700;font-size:14.5px;
  padding:11px 20px;border-radius:999px;border:none;
  box-shadow:0 6px 16px rgba(0,158,142,.26);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-main:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,158,142,.32);}
.btn-main:active{transform:translateY(0);box-shadow:0 4px 12px rgba(0,158,142,.24);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);color:#fff;font-weight:700;font-size:14.5px;
  padding:11px 20px;border-radius:999px;border:1.5px solid rgba(255,255,255,.62);
  transition:all .2s ease;
}
.btn-ghost:hover{background:#fff;color:var(--brand-dark);transform:translateY(-2px);}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--brand-dark);font-weight:700;font-size:14.5px;
  padding:11px 20px;border-radius:999px;border:1.5px solid var(--brand);
  transition:all .2s ease;
}
.btn-line:hover{background:var(--brand-soft);transform:translateY(-2px);}

.channel-row{
  display:flex;align-items:center;gap:10px;
  padding:10px 0 12px;border-top:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;white-space:nowrap;
}
.channel-row::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--text);
  background:#fff;border:1px solid var(--line);
  transition:all .2s ease;flex:0 0 auto;
}
.chip:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(0,158,142,.26);}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background:var(--grad-deep);
}
.page-hero::after{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.42) 0%,rgba(255,122,69,0) 68%);
}
.hero-inner{position:relative;z-index:2;padding:74px 0 78px;}
.hero-copy{max-width:720px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.05em;
  padding:7px 15px;border-radius:999px;
}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.4vw,46px);margin:20px 0 14px;letter-spacing:-.01em;
}
.hero-sub{font-size:clamp(17px,1.8vw,21px);font-weight:700;color:#EAFFFB;}
.hero-lead{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.86);max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  color:#fff;font-size:13.5px;font-weight:600;padding:8px 16px;border-radius:999px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--orange);}

/* ============ 筛选 + 赛事大卡 ============ */
.filter-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:nowrap;overflow-x:auto;
  padding:6px 0 4px;margin-bottom:30px;scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:0 0 auto;height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--text);
  font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;
}
.filter-chip:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);}
.filter-chip.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(0,158,142,.24);}

.match-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.match-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.match-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#BFE9E2;}
.match-media{position:relative;aspect-ratio:16/9;background:var(--grad);overflow:hidden;}
.match-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.match-card:hover .match-media img{transform:scale(1.04);}
.match-media .badge-cat{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--brand-dark);
  font-size:12.5px;font-weight:800;padding:6px 13px;border-radius:999px;
  box-shadow:0 4px 12px rgba(15,26,28,.14);
}
.match-media .badge-time{
  position:absolute;right:14px;top:14px;
  background:rgba(15,26,28,.62);color:#fff;
  font-size:12.5px;font-weight:700;padding:6px 13px;border-radius:999px;
  backdrop-filter:blur(2px);
}
.match-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.match-body h3{
  font-size:19px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.match-body p{
  font-size:14.5px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.match-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;}
.tag-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:700;padding:6px 12px;border-radius:999px;
}
.link-more{font-size:14px;font-weight:700;color:var(--brand-dark);display:inline-flex;align-items:center;gap:6px;}
.link-more i{transition:transform .2s ease;}
.match-card:hover .link-more i{transform:translateX(4px);}
.empty-note{
  display:none;padding:40px;text-align:center;background:#fff;border:1px dashed var(--line);
  border-radius:var(--r-card);color:var(--muted);font-size:15px;
}
.empty-note i{display:block;font-size:26px;color:var(--brand);margin-bottom:10px;}

/* ============ 阶段对阵 ============ */
.bracket-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-big);padding:32px;box-shadow:var(--sh-1);}
.bracket-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.stage-col{background:var(--bg);border-radius:var(--r-card);padding:20px;border:1px solid var(--line);}
.stage-col h3{font-size:16.5px;display:flex;align-items:center;gap:9px;margin-bottom:16px;}
.stage-num{
  width:26px;height:26px;border-radius:9px;background:var(--brand);color:#fff;
  font-size:13px;font-weight:800;display:grid;place-items:center;flex:0 0 26px;
}
.pair{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:12px 14px;font-size:14px;color:var(--ink);font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-bottom:10px;transition:all .2s ease;
}
.pair:last-child{margin-bottom:0;}
.pair:hover{border-color:var(--brand);box-shadow:var(--sh-1);transform:translateX(3px);}
.pair .score{font-variant-numeric:tabular-nums;color:var(--brand-dark);font-weight:800;}
.pair .vs{color:var(--muted);font-weight:500;font-size:13px;}

/* ============ 积分排行 ============ */
.rank-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-big);box-shadow:var(--sh-1);overflow:hidden;}
.rank-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 26px 18px;border-bottom:1px solid var(--line);}
.rank-head h2{font-size:clamp(20px,2.2vw,26px);}
.rank-head span{font-size:13.5px;color:var(--muted);}
.table-scroll{overflow-x:auto;}
table.rank-table{width:100%;border-collapse:collapse;min-width:620px;}
table.rank-table th{
  font-size:13px;font-weight:700;color:var(--muted);text-align:left;
  padding:14px 26px;background:var(--bg);letter-spacing:.03em;white-space:nowrap;
}
table.rank-table td{
  padding:16px 26px;font-size:14.5px;color:var(--ink);
  border-top:1px solid var(--line);font-variant-numeric:tabular-nums;white-space:nowrap;
}
table.rank-table tbody tr:hover td{background:#FBFFFE;}
.rk-no{
  display:inline-grid;place-items:center;width:26px;height:26px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:13px;
}
.rk-no.top{background:var(--orange);color:#fff;}
.rk-team{font-weight:700;}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;
  padding:5px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);
}
.pill.warn{background:#FFF1E9;color:#C74E1F;}

/* ============ 数据徽章带 ============ */
.stat-band{background:var(--grad);border-radius:var(--r-big);padding:38px 32px;box-shadow:var(--sh-2);position:relative;overflow:hidden;}
.stat-band::after{
  content:"";position:absolute;width:300px;height:300px;right:-90px;bottom:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.34) 0%,rgba(255,122,69,0) 70%);
}
.stat-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.stat-item{color:#fff;text-align:center;}
.stat-num{font-size:clamp(28px,3.4vw,38px);font-weight:800;font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em;}
.stat-num small{font-size:15px;font-weight:700;margin-left:2px;}
.stat-label{margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.88);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.accordion-item{
  border:1px solid var(--line) !important;border-radius:16px !important;
  overflow:hidden;background:#fff;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:16px;font-weight:700;color:var(--ink);background:#fff;
  padding:20px 22px;gap:14px;box-shadow:none !important;
  border-left:4px solid transparent;transition:all .2s ease;
}
.accordion-button:not(.collapsed){
  color:var(--brand-dark);background:#F4FDFB;border-left-color:var(--brand);
}
.accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;font-size:13px;color:var(--muted);transition:transform .25s ease,color .25s ease;
  margin-left:auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--brand);}
.faq-no{
  flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:var(--brand-soft);
  color:var(--brand-dark);font-size:13px;font-weight:800;display:grid;place-items:center;
}
.accordion-button:not(.collapsed) .faq-no{background:var(--brand);color:#fff;}
.accordion-body{padding:4px 22px 22px 64px;font-size:15px;color:var(--text);}

/* ============ CTA ============ */
.cta-band{
  background:var(--grad);border-radius:var(--r-big);padding:52px 32px;text-align:center;
  color:#fff;position:relative;overflow:hidden;box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;width:340px;height:340px;left:-110px;top:-150px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.26) 0%,rgba(255,255,255,0) 70%);
}
.cta-inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);}
.cta-band p{margin:12px auto 0;max-width:620px;font-size:15px;color:rgba(255,255,255,.9);}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px;}
.btn-white{
  display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--brand-dark);
  font-weight:700;font-size:14.5px;padding:12px 22px;border-radius:999px;border:none;
  box-shadow:0 8px 20px rgba(6,45,43,.18);transition:all .2s ease;cursor:pointer;
}
.btn-white:hover{color:var(--brand-dark);transform:translateY(-2px);filter:brightness(.98);}
.btn-white.is-on{background:var(--orange);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#B9C4C5;margin-top:var(--sp-3);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:15px;border-radius:12px;}
.site-footer p{font-size:14px;line-height:1.8;color:#9AA7A8;}
.footer-title{color:#fff;font-weight:800;font-size:15px;margin-bottom:16px;}
.footer-list li{margin-bottom:11px;font-size:14px;}
.footer-list a{color:#B9C4C5;}
.footer-list a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 26px;font-size:13.5px;color:#8B9899;
}

/* ============ 响应式 ============ */
@media (max-width:992px){
  .match-grid{grid-template-columns:1fr;}
  .bracket-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .hero-inner{padding:56px 0 60px;}
}
@media (max-width:768px){
  .wrap{padding:0 16px;}
  .section{padding:var(--sp-1) 0;}
  .brand-sub{display:none;}
  .brand-name{font-size:15.5px;}
  .help-link{display:none;}
  .match-body h3{font-size:17.5px;}
  .bracket-wrap{padding:22px;}
  .rank-head{padding:20px 18px 16px;}
  table.rank-table th,table.rank-table td{padding:13px 18px;}
  .accordion-body{padding-left:22px;}
  .cta-band{padding:40px 22px;}
  .stat-band{padding:30px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:576px){
  .icon-btn{display:none;}
  .btn-main{padding:10px 16px;font-size:13.5px;}
  .hero-cta .btn-ghost,.hero-cta .btn-main{width:100%;justify-content:center;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .stat-num{font-size:26px;}
  .page-hero h1{font-size:28px;}
}

/* roulang page: category4 */
:root{
  --brand:#009E8E;
  --brand-dark:#00796D;
  --brand-soft:#E3F6F3;
  --accent:#FF7A45;
  --yellow:#FFC53D;
  --ink:#0F1A1C;
  --text:#4B5A5C;
  --muted:#7C8A8C;
  --line:#E4E9E8;
  --page:#F6F8F7;
  --card:#FFFFFF;
  --grad-brand:linear-gradient(135deg,#009E8E 0%,#00C2A8 55%,#7FE3C9 100%);
  --grad-hero:linear-gradient(120deg,rgba(5,42,40,.90) 0%,rgba(0,121,109,.80) 46%,rgba(0,158,142,.62) 100%);
  --r-s:12px;
  --r-m:20px;
  --r-l:24px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 6px rgba(15,26,28,.05);
  --sh-2:0 12px 28px rgba(15,26,28,.10);
  --sh-3:0 18px 40px rgba(15,26,28,.14);
  --bs-primary:#009E8E;
  --bs-primary-rgb:0,158,142;
  --bs-link-color:#009E8E;
  --bs-link-hover-color:#00796D;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:14px;flex:0 0 40px;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:0 6px 16px rgba(0,158,142,.28);
}
.brand-divider{width:1px;height:30px;background:var(--line);}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand-sub{font-size:12px;color:var(--muted);margin-top:2px;}
.brand-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-s);border:1px solid var(--line);
  background:#fff;color:var(--ink);display:grid;place-items:center;cursor:pointer;
  transition:all .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.help-link{font-size:14px;font-weight:600;color:var(--text);}
.help-link:hover{color:var(--brand);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-s);border:1px solid transparent;
  background:var(--brand);color:#fff;font-size:14px;font-weight:700;cursor:pointer;
  transition:all .22s ease;
}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,158,142,.28);}
.btn-main:active{transform:translateY(0);box-shadow:0 4px 10px rgba(0,158,142,.22);}
.btn-main:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.channel-row{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;padding:10px 0 12px;border-top:1px solid var(--line);
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;height:36px;display:inline-flex;align-items:center;
  padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:14px;font-weight:600;white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{background:var(--brand-soft);border-color:#BEE9E2;color:var(--brand-dark);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(0,158,142,.25);}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-dark);padding:62px 0 70px;}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.page-hero::after{content:"";position:absolute;inset:0;background:var(--grad-hero);}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.32);color:#fff;font-size:13px;font-weight:700;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,46px);font-weight:800;line-height:1.2;
  color:#fff;margin:18px 0 14px;
}
.hero-sub{font-size:17px;line-height:1.7;color:rgba(255,255,255,.88);margin:0 0 26px;max-width:520px;}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;}
.btn-lg{height:50px;padding:0 26px;font-size:15px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-s);
  border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.08);
  color:#fff;font-size:15px;font-weight:700;cursor:pointer;transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}
.btn-ghost:focus-visible{outline:2px solid #fff;outline-offset:2px;}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);color:#fff;font-size:13px;font-weight:600;
}
.badge-soft::before{content:"";width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.7);}
.badge-soft:nth-child(2)::before{background:var(--accent);}
.badge-soft:nth-child(3)::before{background:var(--yellow);}
.hero-card{background:rgba(255,255,255,.98);border-radius:var(--r-xl);padding:14px;box-shadow:var(--sh-3);}
.hero-thumb{position:relative;border-radius:20px;overflow:hidden;aspect-ratio:16/9;background:var(--grad-brand);}
.hero-thumb img{width:100%;height:100%;object-fit:cover;}
.hero-card-body{padding:18px 10px 8px;}
.hero-card-body h2{font-size:19px;font-weight:800;margin-bottom:8px;}
.hero-card-body p{font-size:14px;line-height:1.8;color:var(--text);margin:0;}
.hero-card-meta{display:flex;gap:18px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);}
.hero-card-meta div{font-size:13px;color:var(--muted);}
.hero-card-meta strong{display:block;font-size:20px;font-weight:800;color:var(--brand-dark);font-variant-numeric:tabular-nums;line-height:1.3;}

/* ---------- topic nav ---------- */
.topic-nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:9;}
.topic-nav .wrap{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:14px 24px;scrollbar-width:none;}
.topic-nav .wrap::-webkit-scrollbar{display:none;}
.topic-lead{font-size:13px;font-weight:700;color:var(--muted);flex:0 0 auto;margin-right:4px;}
.topic-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand-dark);
  font-size:14px;font-weight:700;transition:all .2s ease;
}
.topic-chip:hover{background:var(--brand);color:#fff;}
.topic-chip i{font-size:12px;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-lg{padding:88px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;margin-bottom:10px;}
.section-head p{font-size:15px;color:var(--text);margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:700;margin-bottom:14px;
}

/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;}
.group{scroll-margin-top:140px;}
.group + .group{margin-top:52px;padding-top:44px;border-top:1px dashed var(--line);}
.group-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:22px;}
.group-num{
  flex:0 0 auto;display:grid;place-items:center;width:44px;height:44px;border-radius:14px;
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:800;
  font-variant-numeric:tabular-nums;box-shadow:0 8px 18px rgba(0,158,142,.24);
}
.group-head h2{font-size:24px;font-weight:800;margin-bottom:4px;}
.group-head p{font-size:14px;color:var(--muted);margin:0;}

.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:16px;background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);transition:all .22s ease;
}
.faq-acc .accordion-item:hover{border-color:#BEE9E2;box-shadow:var(--sh-2);}
.faq-acc .accordion-button{
  display:flex;align-items:center;gap:12px;width:100%;
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink);
  background:#fff;border:0;border-radius:16px;text-align:left;line-height:1.6;
  transition:all .2s ease;
}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:var(--line);}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--brand-soft);color:var(--brand-dark);
  box-shadow:inset 4px 0 0 var(--brand) !important;
}
.q-num{
  flex:0 0 auto;display:grid;place-items:center;width:28px;height:28px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;transition:all .2s ease;
}
.accordion-button:not(.collapsed) .q-num{background:#fff;color:var(--brand-dark);}
.faq-caret{margin-left:auto;font-size:13px;color:var(--muted);transition:transform .28s ease,color .28s ease;flex:0 0 auto;}
.accordion-button:not(.collapsed) .faq-caret{transform:rotate(180deg);color:var(--brand);}
.faq-acc .accordion-body{
  padding:2px 22px 22px 62px;font-size:15px;line-height:1.85;color:var(--text);background:#fff;
}
.faq-acc .accordion-body p:last-child{margin-bottom:0;}

/* ---------- contact card ---------- */
.contact-card{
  position:sticky;top:132px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-l);padding:24px;box-shadow:var(--sh-2);overflow:hidden;
}
.contact-card::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:var(--grad-brand);}
.contact-icon{
  width:46px;height:46px;border-radius:15px;background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;font-size:19px;margin:6px 0 14px;
}
.contact-card h3{font-size:19px;font-weight:800;margin-bottom:8px;}
.contact-card p{font-size:14px;line-height:1.8;color:var(--text);margin-bottom:16px;}
.field{margin-bottom:12px;}
.field input{
  width:100%;height:46px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:14px;padding:0 14px;outline:none;
  transition:all .2s ease;
}
.field input::placeholder{color:#9EAAAB;}
.field input:focus{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 0 0 3px rgba(0,158,142,.14);}
.field-error{display:block;font-size:13px;color:#E5533D;margin-top:6px;}
.btn-block{width:100%;height:46px;}
.contact-note{font-size:13px;color:var(--muted);line-height:1.7;margin:14px 0 0;padding-top:14px;border-top:1px dashed var(--line);}

/* ---------- guide band ---------- */
.guide-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.guide-grid{display:grid;grid-template-columns:1fr 1.06fr;gap:48px;align-items:center;}
.guide-media{position:relative;border-radius:var(--r-l);overflow:hidden;aspect-ratio:16/9;background:var(--grad-brand);box-shadow:var(--sh-2);}
.guide-media img{width:100%;height:100%;object-fit:cover;}
.guide-list{display:grid;gap:0;}
.guide-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);}
.guide-item:first-child{padding-top:0;}
.guide-item:last-child{border-bottom:0;padding-bottom:0;}
.guide-item span{
  flex:0 0 auto;display:grid;place-items:center;width:34px;height:34px;border-radius:11px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.guide-item h3{font-size:18px;font-weight:800;margin-bottom:6px;}
.guide-item p{font-size:14px;line-height:1.8;color:var(--text);margin:0;}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;color:inherit;box-shadow:var(--sh-1);transition:all .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:#BEE9E2;box-shadow:var(--sh-2);color:inherit;}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--grad-brand);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-body{padding:20px 22px 22px;}
.rel-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:700;margin-bottom:12px;
}
.rel-body h3{font-size:18px;font-weight:800;margin-bottom:8px;}
.rel-body p{font-size:14px;line-height:1.8;color:var(--text);margin:0;}
.rel-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand);margin-top:14px;}
.rel-card:hover .rel-more{color:var(--brand-dark);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);padding:48px 40px;text-align:center;color:#fff;
  box-shadow:0 20px 44px rgba(0,158,142,.24);
}
.cta-band::before{
  content:"";position:absolute;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.5) 0%,rgba(255,122,69,0) 68%);
  top:-120px;right:-60px;
}
.cta-band h2{position:relative;color:#fff;font-size:clamp(23px,2.8vw,30px);font-weight:800;margin-bottom:12px;}
.cta-band p{position:relative;font-size:15px;color:rgba(255,255,255,.92);margin:0 auto 26px;max-width:620px;}
.cta-actions{position:relative;display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-s);background:#fff;color:var(--brand-dark);font-size:15px;font-weight:800;
  border:1px solid #fff;cursor:pointer;transition:all .22s ease;
}
.btn-light:hover{background:#F0FFFC;color:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.16);}
.btn-outline-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-s);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.6);
  color:#fff;font-size:15px;font-weight:700;cursor:pointer;transition:all .22s ease;
}
.btn-outline-light:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#AEB8B7;margin-top:88px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:46px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800;margin-bottom:14px;}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:12px;font-size:15px;}
.site-footer p{font-size:14px;line-height:1.85;color:#93A0A0;margin:0;max-width:340px;}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-list{display:grid;gap:11px;}
.footer-list a{color:#AEB8B7;font-size:14px;}
.footer-list a:hover{color:#00C2A8;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;font-size:13px;color:#7E8C8C;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-inner{gap:36px;}
  .faq-layout{grid-template-columns:minmax(0,1fr) 292px;gap:32px;}
  .guide-grid{gap:32px;}
}
@media (max-width:991px){
  .hero-inner{grid-template-columns:1fr;}
  .hero-sub{max-width:none;}
  .faq-layout{grid-template-columns:1fr;}
  .contact-card{position:static;top:auto;}
  .guide-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:60px 0;}
  .section-lg{padding:68px 0;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .topic-nav .wrap{padding:12px 16px;}
  .help-link{display:none;}
  .brand-sub{display:none;}
  .brand-name{font-size:16px;}
  .brand-row{min-height:66px;}
  .page-hero{padding:44px 0 52px;}
  .hero-btns .btn-main,.hero-btns .btn-ghost{flex:1 1 100%;}
  .faq-acc .accordion-button{padding:16px 16px;font-size:15px;}
  .faq-acc .accordion-body{padding:2px 16px 20px 56px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 22px;border-radius:var(--r-l);}
  .cta-actions .btn-light,.cta-actions .btn-outline-light{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:64px;padding-top:48px;}
}
@media (max-width:575px){
  .brand-name{font-size:15px;}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:12px;}
  .brand-divider{display:none;}
  .hero-card-body h2{font-size:17px;}
  .group-head h2{font-size:21px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}