/* roulang page: index */
:root{
  --c-primary:#0F63B0;
  --c-primary-700:#0A4B87;
  --c-accent:#FF7A3D;
  --c-teal:#12B5A6;
  --c-bg:#F6F8FB;
  --c-bg-2:#EEF3FA;
  --c-card:#FFFFFF;
  --c-line:#E6EDF5;
  --c-ink:#0B1B2B;
  --c-ink-2:#41566B;
  --c-ink-3:#7A8CA0;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --sh-1:0 1px 2px rgba(11,27,43,.04),0 8px 24px rgba(11,27,43,.06);
  --sh-2:0 14px 34px rgba(11,27,43,.13);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --sec-gap:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;background:var(--c-bg-2);}
a{color:var(--c-primary);text-decoration:none;transition:color 220ms var(--ease);}
a:hover{color:var(--c-primary-700);}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;background:transparent;
  transition:all 220ms var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(15,99,176,.24);}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;box-shadow:0 12px 26px rgba(15,99,176,.30);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-outline:hover{background:rgba(15,99,176,.08);color:var(--c-primary-700);}
.btn-ghost{border-color:rgba(255,255,255,.72);color:#fff;background:rgba(255,255,255,.06);}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;}
.btn-ghost-ink{border-color:var(--c-line);color:var(--c-ink-2);background:#fff;}
.btn-ghost-ink:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;background:rgba(15,99,176,.08);color:var(--c-primary);
}
.tag-accent{background:rgba(255,122,61,.14);color:#D6521C;}
.tag-teal{background:rgba(18,181,166,.14);color:#0A857A;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:500;backdrop-filter:blur(6px);
}
.badge b{font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(255,255,255,.10);
  border-bottom:1px solid rgba(255,255,255,.22);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  transition:background 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
  color:#fff;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 8px 24px rgba(11,27,43,.08);
  color:var(--c-ink);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:inherit;font-weight:800;flex:none;}
.brand:hover{color:inherit;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--c-primary),var(--c-teal));color:#fff;flex:none;
}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-text{font-size:19px;letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;display:flex;align-items:center;height:72px;padding:0 14px;
  color:inherit;font-size:15px;font-weight:500;opacity:.92;
}
.nav-link:hover{opacity:1;color:inherit;}
.nav-link.is-active{font-weight:700;opacity:1;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;border-radius:2px;
  background:var(--c-primary);
}
.site-header:not(.is-scrolled) .nav-link.is-active::after{background:var(--c-accent);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-toggle{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:38px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.34);background:rgba(255,255,255,.10);
  color:inherit;font-size:14px;transition:all 220ms var(--ease);
}
.site-header.is-scrolled .search-toggle{border-color:var(--c-line);background:#F2F6FB;}
.search-toggle:hover{border-color:var(--c-primary);}
.search-toggle svg{width:16px;height:16px;}
.header-search{
  overflow:hidden;max-height:0;transition:max-height 260ms var(--ease);
  border-top:1px solid transparent;
}
.site-header.search-open .header-search{max-height:86px;border-top-color:var(--c-line);}
.header-search-inner{display:flex;gap:12px;padding:14px 0;}
.header-search input{
  flex:1;height:46px;border-radius:var(--radius-sm);border:1px solid var(--c-line);
  background:#F2F6FB;padding:0 16px;font-size:15px;color:var(--c-ink);
}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.14);}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.34);background:rgba(255,255,255,.10);color:inherit;
  align-items:center;justify-content:center;
}
.site-header.is-scrolled .nav-burger{border-color:var(--c-line);background:#F2F6FB;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:#fff;
  transform:translateX(100%);transition:transform 280ms var(--ease);
  display:flex;flex-direction:column;padding:20px 20px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-brand{font-weight:800;font-size:18px;color:var(--c-ink);}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid var(--c-line);
  background:#F2F6FB;color:var(--c-ink);display:flex;align-items:center;justify-content:center;font-size:20px;
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 4px;border-bottom:1px solid var(--c-line);
  color:var(--c-ink);font-size:16px;font-weight:600;
}
.drawer-link.is-active{color:var(--c-primary);}
.drawer-search{display:flex;gap:10px;margin:20px 0;}
.drawer-search input{
  flex:1;height:46px;border-radius:var(--radius-sm);border:1px solid var(--c-line);
  background:#F2F6FB;padding:0 14px;font-size:15px;
}
.drawer-cta{margin-top:8px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;background:#0B1B2B;
  padding:132px 0 76px;min-height:520px;display:flex;align-items:flex-end;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  transform:scale(1.03);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,21,35,.66) 0%,rgba(9,21,35,.50) 40%,rgba(9,21,35,.72) 76%,rgba(246,248,251,.99) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:end;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:999px;
  background:rgba(255,122,61,.20);border:1px solid rgba(255,122,61,.42);
  color:#FFD6C2;font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero h1{
  font-size:44px;line-height:1.2;letter-spacing:-.01em;margin-bottom:16px;
  text-shadow:0 2px 20px rgba(0,0,0,.28);
}
.hero-sub{
  font-size:17px;line-height:1.7;color:rgba(255,255,255,.86);max-width:560px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-stack{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.stack-card{
  position:relative;margin:0;border-radius:var(--radius);overflow:hidden;
  background:var(--c-bg-2);box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.18);
  transition:transform 260ms var(--ease);
}
.stack-card img{width:100%;aspect-ratio:3/4;object-fit:cover;}
.stack-card figcaption{
  position:absolute;left:10px;bottom:10px;font-size:12px;font-weight:600;
  background:rgba(9,21,35,.62);color:#fff;padding:4px 10px;border-radius:999px;
  backdrop-filter:blur(4px);
}
.stack-card:nth-child(2){margin-top:26px;}
.stack-card:nth-child(3){margin-top:-26px;}
.stack-card:hover{transform:translateY(-3px);}

/* ---------- 区块通用 ---------- */
.section{padding:var(--sec-gap) 0;}
.section-alt{background:var(--c-bg-2);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-title{font-size:30px;position:relative;padding-left:16px;}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--c-primary);
}
.sec-sub{margin-top:10px;color:var(--c-ink-2);font-size:15px;max-width:640px;}
.sec-tools{display:flex;align-items:center;gap:10px;flex:none;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink-2);display:flex;align-items:center;justify-content:center;
  transition:all 220ms var(--ease);
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1);}
.more-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.more-link:hover{color:var(--c-accent);}

/* ---------- 横滑片库 ---------- */
.scroller{
  display:flex;gap:20px;overflow-x:auto;padding:8px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.scroller::-webkit-scrollbar{display:none;}
.reel-card{
  flex:0 0 260px;width:260px;scroll-snap-align:start;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);overflow:hidden;transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.reel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.reel-media{position:relative;overflow:hidden;}
.reel-media img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform 320ms var(--ease);}
.reel-card:hover .reel-media img{transform:scale(1.03);}
.reel-media .tag{position:absolute;top:10px;left:10px;}
.reel-body{padding:14px 16px 16px;}
.reel-title{
  font-size:16px;font-weight:700;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.reel-title a{color:var(--c-ink);}
.reel-title a:hover{color:var(--c-primary);}
.reel-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--c-ink-3);}
.reel-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--c-teal);flex:none;}

/* ---------- 热播推荐 ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);overflow:hidden;transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.feature-main .feature-media{overflow:hidden;}
.feature-main img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms var(--ease);}
.feature-main:hover img{transform:scale(1.03);}
.feature-body{padding:22px;}
.feature-body h3{font-size:22px;margin:12px 0 10px;line-height:1.35;}
.feature-body h3 a{color:var(--c-ink);}
.feature-body h3 a:hover{color:var(--c-primary);}
.feature-body p{color:var(--c-ink-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feature-side{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.mini-card{padding:0;display:flex;flex-direction:column;}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mini-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mini-body h3{
  font-size:16px;line-height:1.45;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-body h3 a{color:var(--c-ink);}
.mini-body h3 a:hover{color:var(--c-primary);}
.mini-meta{margin-top:auto;font-size:12.5px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;}

/* ---------- 片单分区 ---------- */
.reel-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.group-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);padding:24px;transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.group-panel:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.group-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--c-line);margin-bottom:8px;}
.group-head h3{font-size:19px;display:flex;align-items:center;gap:10px;}
.group-head h3 span{
  display:inline-block;width:8px;height:8px;border-radius:2px;background:var(--c-teal);
}
.group-head a{font-size:13.5px;font-weight:600;}
.group-list li{border-bottom:1px solid var(--c-line);}
.group-list li:last-child{border-bottom:0;}
.group-item{
  display:flex;align-items:flex-start;gap:12px;padding:16px 8px;border-radius:12px;
  transition:background 200ms var(--ease);
}
.group-item:hover{background:var(--c-bg-2);}
.group-item .g-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-primary);margin-top:9px;flex:none;
}
.group-item .g-body{flex:1;min-width:0;}
.group-item h4{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:4px;}
.group-item h4 a{color:var(--c-ink);}
.group-item h4 a:hover{color:var(--c-primary);}
.group-item p{font-size:13.5px;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.group-item .g-time{font-size:12.5px;color:var(--c-ink-3);margin-top:6px;display:block;}

/* ---------- 数据条 ---------- */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-line);
  border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--sh-1);
}
.stat-cell{background:#fff;padding:26px 22px;}
.stat-cell b{display:block;font-size:28px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-cell span{display:block;margin-top:6px;font-size:14px;color:var(--c-ink-2);}

/* ---------- 最新信息（CMS） ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-card__media{display:block;overflow:hidden;background:var(--c-bg-2);}
.post-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms var(--ease);}
.post-card:hover .post-card__media img{transform:scale(1.03);}
.media-fallback{
  display:block;width:100%;aspect-ratio:16/9;
  background:
    radial-gradient(circle at 50% 46%,rgba(15,99,176,.16) 0 22px,transparent 23px),
    linear-gradient(135deg,var(--c-bg-2),#DFE9F5);
}
.post-card__body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.post-time{font-size:12.5px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;}
.post-card__title{
  font-size:17px;line-height:1.5;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__title a{color:var(--c-ink);}
.post-card__title a:hover{color:var(--c-primary);}
.post-card__excerpt{
  font-size:14px;color:var(--c-ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__more{
  margin-top:auto;font-size:13.5px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--c-line);
  border-radius:var(--radius);
}
.empty-icon{
  display:block;width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  border:2px solid var(--c-line);position:relative;
}
.empty-icon::after{
  content:"";position:absolute;left:50%;top:50%;width:20px;height:2px;background:var(--c-line);
  transform:translate(-50%,-50%);
}
.empty-state p{color:var(--c-ink-2);margin-bottom:18px;}

/* ---------- 订阅 CTA ---------- */
.subscribe{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-lg);
  box-shadow:var(--sh-1);padding:40px;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.subscribe h2{font-size:26px;margin-bottom:12px;}
.subscribe p{color:var(--c-ink-2);font-size:15px;}
.subscribe-form{display:flex;gap:12px;}
.subscribe-form input{
  flex:1;height:46px;border-radius:var(--radius-sm);border:1px solid var(--c-line);
  background:#F2F6FB;padding:0 16px;font-size:15px;color:var(--c-ink);transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.subscribe-form input::placeholder{color:var(--c-ink-3);}
.subscribe-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.14);}
.privacy-note{margin-top:12px;font-size:12.5px;color:var(--c-ink-3);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:700;color:var(--c-ink);min-height:56px;
  transition:background 200ms var(--ease);
}
.faq-q:hover{background:var(--c-bg-2);}
.faq-icon{position:relative;width:20px;height:20px;flex:none;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform 240ms var(--ease);
}
.faq-icon::before{left:2px;right:2px;top:9px;height:1.5px;}
.faq-icon::after{top:2px;bottom:2px;left:9px;width:1.5px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-item.is-open .faq-icon::before{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease);}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--c-ink-2);line-height:1.8;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:56px 0 28px;margin-top:var(--sec-gap);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:14px;}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;}
.footer-brand .brand-mark svg{width:17px;height:17px;}
.footer-about{font-size:14px;color:var(--c-ink-3);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--c-ink);}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--c-ink-3);}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;}
.footer-contact p{font-size:14px;color:var(--c-ink-3);margin-bottom:10px;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-ink-3);
}
.back-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-2);color:var(--c-primary);
  display:none;align-items:center;justify-content:center;z-index:70;font-size:18px;
}
.back-top.is-show{display:flex;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{max-width:1120px;}
}
@media (max-width:1024px){
  :root{--sec-gap:64px;}
  .container{padding:0 24px;}
  .hero h1{font-size:36px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-stack{grid-template-columns:repeat(4,1fr);}
  .stack-card:nth-child(2){margin-top:18px;}
  .stack-card:nth-child(3){margin-top:-18px;}
  .feature-grid{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .reel-groups{grid-template-columns:1fr;}
  .stats-band{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .main-nav{gap:0;}
  .nav-link{padding:0 10px;font-size:14.5px;}
}
@media (max-width:768px){
  :root{--sec-gap:48px;}
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .main-nav,.header-actions .search-toggle,.header-actions .btn{display:none;}
  .nav-burger{display:flex;}
  .header-inner{height:60px;}
  .brand-text{font-size:17px;}
  .hero{padding:104px 0 56px;min-height:400px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-stack{display:none;}
  .hero-actions .btn{flex:1 1 auto;}
  .sec-title{font-size:22px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .scroller{gap:14px;}
  .reel-card{flex:0 0 200px;width:200px;}
  .feature-side{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .stats-band{grid-template-columns:1fr;}
  .subscribe{grid-template-columns:1fr;gap:24px;padding:26px 20px;}
  .subscribe h2{font-size:22px;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form .btn{width:100%;}
  .faq-q{font-size:16px;padding:16px;}
  .faq-a p{padding:0 16px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  .card,.group-panel,.post-card__body{padding:12px;}
  .post-card__body{padding:14px;}
  .btn{height:42px;padding:0 18px;}
  .feature-body{padding:16px;}
  .feature-body h3{font-size:19px;}
}

/* roulang page: article */
:root{
  --c-primary:#0F63B0;
  --c-primary-700:#0A4B87;
  --c-accent:#FF7A3D;
  --c-teal:#12B5A6;
  --c-bg:#F6F8FB;
  --c-bg-2:#EEF3FA;
  --c-line:#E6EDF5;
  --c-ink:#0B1B2B;
  --c-ink-2:#41566B;
  --c-ink-3:#7A8CA0;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --sh-1:0 1px 2px rgba(11,27,43,.04), 0 8px 24px rgba(11,27,43,.06);
  --sh-2:0 14px 34px rgba(11,27,43,.13);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
  --section:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{line-height:1.25;letter-spacing:-.01em;font-weight:800}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:0;
  border:1.5px solid transparent;transition:all 220ms var(--ease);white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(15,99,176,.22)}
.btn-primary:hover{background:var(--c-primary-700);box-shadow:0 10px 24px rgba(10,75,135,.28);transform:translateY(-1px)}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:rgba(15,99,176,.08);transform:translateY(-1px)}
.btn-white{border-color:rgba(255,255,255,.7);color:#fff;background:rgba(255,255,255,.08)}
.btn-white:hover{background:rgba(255,255,255,.18)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.badge-new{background:rgba(255,122,61,.14);color:#D9531C}
.badge-hot{background:rgba(18,181,166,.14);color:#0A8C81}
.badge-cat{background:rgba(15,99,176,.10);color:var(--c-primary)}
.badge-light{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.32)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:13px;transition:all 200ms var(--ease);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(255,255,255,.10);
  border-bottom:1px solid rgba(255,255,255,.22);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  transition:background 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
  --logo-color:#fff;--nav-color:rgba(255,255,255,.92);--nav-hover:#fff;
}
.site-header.is-solid{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 8px 24px rgba(11,27,43,.08);
  --logo-color:var(--c-ink);--nav-color:var(--c-ink-2);--nav-hover:var(--c-primary);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 32px;height:var(--nav-h);
  display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--logo-color);transition:color 240ms var(--ease);flex-shrink:0}
.brand-mark{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;color:var(--c-accent)}
.brand-mark svg{width:26px;height:26px}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;padding:0 14px;height:var(--nav-h);display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:var(--nav-color);transition:color 200ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;transition:transform 220ms var(--ease);
}
.nav-link:hover{color:var(--nav-hover)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--nav-hover);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  color:var(--logo-color);transition:background 200ms var(--ease),color 200ms var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.16)}
.site-header.is-solid .icon-btn:hover{background:var(--c-bg-2)}
.icon-btn svg{width:19px;height:19px}
.nav-search{
  display:flex;align-items:center;width:0;opacity:0;overflow:hidden;
  transition:width 260ms var(--ease),opacity 200ms var(--ease);
}
.nav-search.is-open{width:230px;opacity:1}
.nav-search input{
  width:100%;height:38px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid var(--c-line);background:rgba(255,255,255,.9);
  font-size:14px;color:var(--c-ink);outline:none;transition:border-color 200ms,box-shadow 200ms;
}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.14)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;color:var(--logo-color);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:currentColor;transition:transform 220ms var(--ease)}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:120;background:#fff;
  transform:translateX(100%);transition:transform 280ms var(--ease);
  display:flex;flex-direction:column;padding:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer .brand{color:var(--c-ink)}
.drawer-close{width:44px;height:44px;border-radius:12px;background:var(--c-bg-2);color:var(--c-ink);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-search{margin:20px 0 8px}
.drawer-search input{
  width:100%;height:46px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid var(--c-line);background:#F2F6FB;font-size:15px;outline:none;
}
.drawer-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.14)}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{
  height:48px;display:flex;align-items:center;justify-content:space-between;
  font-size:16px;font-weight:600;color:var(--c-ink);border-bottom:1px solid var(--c-line);
}
.drawer-nav a::after{content:"›";color:var(--c-ink-3);font-size:20px}
.drawer-nav a.is-active{color:var(--c-primary)}
.drawer-cta{margin-top:auto}

/* ============ 文章头 ============ */
.article-hero{position:relative;overflow:hidden;background:var(--c-primary-700)}
.article-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.02);
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,20,35,.68) 0%,rgba(6,20,35,.52) 45%,rgba(6,20,35,.80) 100%);
}
.article-hero-inner{
  position:relative;z-index:2;
  padding-top:calc(var(--nav-h) + 62px);
  padding-bottom:64px;
  color:#fff;max-width:900px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.9)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{color:rgba(255,255,255,.5)}
.breadcrumb .current{color:rgba(255,255,255,.72);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:44px;line-height:1.22;color:#fff;margin:14px 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:rgba(255,255,255,.86)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.5)}
.meta-cat{background:rgba(255,122,61,.22);color:#FFD9C6;border:1px solid rgba(255,122,61,.4)}

/* ============ 正文布局 ============ */
.container.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;
  align-items:start;padding-top:56px;padding-bottom:var(--section);
}
.article-main{max-width:768px;min-width:0}
.article-cover{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--sh-1);
  aspect-ratio:16/9;background:var(--c-bg-2);margin-bottom:36px;
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-body{font-size:16px;line-height:1.8;color:var(--c-ink-2)}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:26px;font-weight:800;color:var(--c-ink);
  margin:36px 0 14px;padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;background:var(--c-primary);
}
.article-body h3{
  position:relative;font-size:20px;font-weight:700;color:var(--c-ink);
  margin:28px 0 10px;padding-left:13px;
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;background:var(--c-teal);
}
.article-body strong{color:var(--c-ink);font-weight:600}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(15,99,176,.35);transition:all 180ms var(--ease)}
.article-body a:hover{color:#D9531C;border-bottom-color:var(--c-accent)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul li{list-style:none;position:relative;padding-left:16px;line-height:1.9}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.article-body ol{list-style:decimal}
.article-body ol li{line-height:1.9;margin-bottom:4px}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--c-bg-2);
  border-left:3px solid var(--c-primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:22px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body table th{
  background:var(--c-bg-2);color:var(--c-primary);font-weight:700;text-align:left;
  padding:12px 16px;border-bottom:1px solid var(--c-line);
}
.article-body table td{padding:12px 16px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}

/* ============ 空态 ============ */
.empty-state{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);padding:56px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--c-bg-2);display:flex;align-items:center;justify-content:center;color:var(--c-ink-3);
}
.empty-state .empty-icon svg{width:26px;height:26px}
.empty-state h3{font-size:18px;color:var(--c-ink);margin-bottom:8px}
.empty-state p{font-size:15px;color:var(--c-ink-3);margin-bottom:20px}

/* ============ 标签行 ============ */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line);
}
.tag-row .label{font-size:14px;color:var(--c-ink-3);margin-right:4px}
.tag-row .actions{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:calc(var(--nav-h) + 24px);display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:15px;font-weight:800;color:var(--c-ink);margin-bottom:14px;
  padding-left:11px;position:relative;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;background:var(--c-primary);
}
.side-meta li{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:9px 0;border-bottom:1px dashed var(--c-line)}
.side-meta li:last-child{border-bottom:0}
.side-meta span{color:var(--c-ink-3)}
.side-meta strong{color:var(--c-ink);font-weight:600;text-align:right;word-break:break-all}
.side-links li{border-bottom:1px solid var(--c-line)}
.side-links li:last-child{border-bottom:0}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  height:52px;font-size:15px;color:var(--c-ink-2);transition:background 200ms var(--ease),color 200ms var(--ease);
  border-radius:8px;padding:0 8px;margin:0 -8px;
}
.side-links a:hover{background:var(--c-bg-2);color:var(--c-primary)}
.side-links a .arrow{color:var(--c-ink-3);transition:transform 200ms var(--ease)}
.side-links a:hover .arrow{transform:translateX(3px);color:var(--c-primary)}
.side-note{font-size:13px;color:var(--c-ink-3);line-height:1.7}

/* ============ 相关推荐 ============ */
.section{padding:var(--section) 0}
.section-alt{background:var(--c-bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:30px;color:var(--c-ink);display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:14px;height:6px;border-radius:3px;background:var(--c-accent)}
.section-head p{font-size:15px;color:var(--c-ink-3);margin-top:8px}
.section-more{font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.section-more:hover{color:#D9531C}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.rel-thumb{aspect-ratio:16/9;background:var(--c-bg-2);overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 18px 20px}
.rel-body h3{
  font-size:17px;color:var(--c-ink);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-body p{
  font-size:14px;color:var(--c-ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--c-ink-3)}

/* ============ 订阅 CTA ============ */
.cta-band{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-lg);
  box-shadow:var(--sh-1);padding:36px;display:grid;grid-template-columns:1.1fr 1fr;
  gap:32px;align-items:center;
}
.cta-band h2{font-size:26px;color:var(--c-ink);margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--c-ink-2)}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;height:46px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid var(--c-line);background:#F2F6FB;font-size:15px;outline:none;
  transition:border-color 200ms,box-shadow 200ms;
}
.cta-form input::placeholder{color:var(--c-ink-3)}
.cta-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.14)}
.cta-form .btn{flex:0 0 auto}
.cta-hint{font-size:12px;color:var(--c-ink-3);margin-top:10px}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:56px 0 24px;color:var(--c-ink-3)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-size:17px;font-weight:800;margin-bottom:14px}
.footer-brand .brand-mark{color:var(--c-primary)}
.footer-about{font-size:14px;line-height:1.8;color:var(--c-ink-3);max-width:340px}
.footer-col h4{font-size:15px;color:var(--c-ink);margin-bottom:16px;font-weight:700}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--c-ink-3);transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-contact p{font-size:14px;line-height:1.9}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-3);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;
  background:#fff;box-shadow:var(--sh-2);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;z-index:80;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all 240ms var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary);color:#fff}
.to-top svg{width:18px;height:18px}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container,.nav-inner{padding:0 28px}
}
@media (max-width:1024px){
  :root{--section:64px}
  .article-hero h1{font-size:36px}
  .container.article-layout{grid-template-columns:1fr;gap:36px;padding-top:44px}
  .article-main{max-width:100%}
  .article-side{position:static;width:100%}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--nav-h:60px;--section:48px}
  body{font-size:15.5px}
  .container,.nav-inner{padding:0 16px}
  .main-nav{display:none}
  .nav-search{display:none}
  .menu-toggle{display:flex}
  .nav-actions{gap:6px}
  .article-hero-inner{padding-top:calc(var(--nav-h) + 40px);padding-bottom:44px}
  .article-hero h1{font-size:28px;margin:12px 0 14px}
  .breadcrumb{font-size:13px}
  .breadcrumb .current{max-width:180px}
  .article-body h2{font-size:22px;margin:30px 0 12px}
  .article-body h3{font-size:18px;margin:24px 0 8px}
  .article-body{line-height:1.8}
  .section-head h2{font-size:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:24px}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:24px 20px}
  .cta-band h2{font-size:22px}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-about{max-width:100%}
  .to-top{right:16px;bottom:20px}
  .tag-row .actions{width:100%;margin-left:0}
  .tag-row .actions .btn{flex:1}
}
@media (max-width:480px){
  .article-hero h1{font-size:26px}
  .side-card,.rel-body{padding:16px}
  .article-body h2{padding-left:12px}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F63B0;
  --c-primary-700:#0A4B87;
  --c-primary-soft:rgba(15,99,176,.08);
  --c-accent:#FF7A3D;
  --c-accent-soft:rgba(255,122,61,.12);
  --c-teal:#12B5A6;
  --c-teal-soft:rgba(18,181,166,.12);
  --c-bg:#F6F8FB;
  --c-bg-2:#EEF3FA;
  --c-card:#FFFFFF;
  --c-line:#E6EDF5;
  --c-ink:#0B1B2B;
  --c-ink-2:#41566B;
  --c-ink-3:#7A8CA0;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --sh-1:0 1px 2px rgba(11,27,43,.04),0 8px 24px rgba(11,27,43,.06);
  --sh-2:0 14px 34px rgba(11,27,43,.13);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --nav-h:72px;
  --sec-gap:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:700;color:var(--c-ink)}
p{margin:0}
svg{display:block}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:110;
  height:var(--nav-h);
  background:rgba(255,255,255,.10);
  border-bottom:1px solid rgba(255,255,255,.22);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 8px 24px rgba(11,27,43,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap;transition:color .22s var(--ease)}
.brand-mark{width:30px;height:30px;flex:0 0 30px;color:#fff;transition:color .22s var(--ease)}
.brand-mark svg{width:100%;height:100%}
.site-header.is-scrolled .brand{color:var(--c-ink)}
.site-header.is-scrolled .brand-mark{color:var(--c-primary)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:15px;font-weight:600;color:rgba(255,255,255,.88);border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.14)}
.nav-link.is-active{color:#fff;font-weight:700}
.nav-link.is-active::after{transform:scaleX(1);background:#fff}
.site-header.is-scrolled .nav-link{color:var(--c-ink-2)}
.site-header.is-scrolled .nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.site-header.is-scrolled .nav-link.is-active{color:var(--c-ink)}
.site-header.is-scrolled .nav-link.is-active::after{background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}

.search{display:flex;align-items:center;height:40px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.30);background:rgba(255,255,255,.12);transition:border-color .2s var(--ease),background .2s var(--ease)}
.search-toggle{width:40px;height:38px;display:grid;place-items:center;color:#fff;transition:color .2s var(--ease)}
.search-toggle svg{width:17px;height:17px}
.search-input{
  width:0;height:38px;opacity:0;padding:0;border:0;background:transparent;
  font-size:14px;color:#fff;outline:none;
  transition:width .26s var(--ease),opacity .2s var(--ease),padding .26s var(--ease);
}
.search-input::placeholder{color:rgba(255,255,255,.70)}
.search.is-open .search-input{width:186px;opacity:1;padding:0 14px 0 0}
.search.is-open{border-color:rgba(255,255,255,.55)}
.site-header.is-scrolled .search{border-color:var(--c-line);background:#F2F6FB}
.site-header.is-scrolled .search-toggle{color:var(--c-ink-2)}
.site-header.is-scrolled .search-input{color:var(--c-ink)}
.site-header.is-scrolled .search-input::placeholder{color:var(--c-ink-3)}
.site-header.is-scrolled .search.is-open{border-color:var(--c-primary)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),transform .12s var(--ease),border-color .2s var(--ease);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(15,99,176,.22)}
.btn-primary:hover{background:var(--c-primary-700);box-shadow:0 12px 26px rgba(10,75,135,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border:1.5px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline:hover{background:var(--c-primary-soft)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.72);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,61,.28)}
.btn-accent:hover{background:#EA6626;box-shadow:0 12px 26px rgba(234,102,38,.30)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-block{width:100%}

.nav-toggle{display:none;width:44px;height:44px;place-items:center;border-radius:var(--radius-sm);color:#fff;transition:color .2s var(--ease)}
.nav-toggle svg{width:22px;height:22px}
.site-header.is-scrolled .nav-toggle{color:var(--c-ink)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:130;background:#fff;
  padding:18px 16px 40px;overflow-y:auto;
  transform:translateX(100%);visibility:hidden;
  transition:transform .28s var(--ease),visibility .28s var(--ease);
}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink)}
.drawer-brand .brand-mark{color:var(--c-primary)}
.drawer-close{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--radius-sm);color:var(--c-ink-2)}
.drawer-close:hover{background:var(--c-bg-2)}
.drawer-close svg{width:20px;height:20px}
.drawer-search{display:flex;align-items:center;gap:8px;margin-top:18px;height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--radius-sm);background:#F2F6FB;color:var(--c-ink-3)}
.drawer-search svg{width:17px;height:17px;flex:0 0 17px}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px;color:var(--c-ink)}
.drawer-search input::placeholder{color:var(--c-ink-3)}
.drawer-nav{margin-top:18px;display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 6px;font-size:16px;font-weight:600;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.drawer-nav a:hover{color:var(--c-primary)}
.drawer-nav a.is-active{color:var(--c-primary)}
.drawer-nav a .chev{width:16px;height:16px;color:var(--c-ink-3)}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-3)}
.crumb a{color:rgba(255,255,255,.82);transition:color .2s var(--ease)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.6}
.crumb .current{color:#fff;font-weight:600}

/* ---------- banner ---------- */
.cat-banner{
  position:relative;
  padding:calc(var(--nav-h) + 52px) 0 40px;
  min-height:260px;
  display:flex;align-items:flex-end;
  color:#fff;
  background:
    linear-gradient(100deg,rgba(11,27,43,.74) 0%,rgba(11,27,43,.48) 48%,rgba(11,27,43,.16) 100%),
    url(/assets/images/backpic/back-1.png) center/cover no-repeat;
}
.banner-inner{max-width:760px}
.banner-kicker{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;margin-bottom:16px;
  border-radius:999px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.32);
  font-size:12.5px;font-weight:600;color:#fff;letter-spacing:.02em;
}
.banner-kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.cat-banner h1{
  font-size:44px;line-height:1.22;color:#fff;font-weight:800;letter-spacing:-.015em;margin-bottom:14px;
}
.cat-banner .banner-sub{font-size:16px;color:rgba(255,255,255,.86);max-width:660px;line-height:1.7}
.banner-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.stat-chip{
  display:flex;align-items:baseline;gap:8px;height:38px;padding:0 16px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.stat-chip b{font-size:16px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}
.stat-chip span{font-size:13px;color:rgba(255,255,255,.82)}
.cat-banner .crumb{margin-bottom:18px}

/* ---------- section base ---------- */
.section{padding:var(--sec-gap) 0}
.section-alt{background:var(--c-bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.section-title{position:relative;padding-left:16px;font-size:30px;font-weight:800;color:var(--c-ink)}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary)}
.section-desc{margin-top:8px;padding-left:16px;font-size:15px;color:var(--c-ink-2);max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.link-more svg{width:14px;height:14px;transition:transform .2s var(--ease)}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- layout ---------- */
.cat-layout{display:grid;grid-template-columns:minmax(0,2.05fr) minmax(0,1fr);gap:32px;align-items:start;padding:56px 0 0}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.u-card{
  position:relative;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.u-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.u-card:hover .u-thumb img{transform:scale(1.03)}
.u-thumb{position:relative;aspect-ratio:16/9;background:var(--c-bg-2);overflow:hidden}
.u-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.u-body{padding:16px}
.u-title{font-size:17px;font-weight:700;line-height:1.45;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.u-card:hover .u-title{color:var(--c-primary-700)}
.u-summary{margin-top:8px;font-size:14px;line-height:1.7;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.u-meta{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:12.5px;color:var(--c-ink-3)}
.u-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-ink-3);opacity:.7}
.u-meta .cat{color:var(--c-primary);font-weight:600}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.badge-new{background:var(--c-accent-soft);color:#C64E15}
.badge-hot{background:var(--c-teal-soft);color:#0A7C71}
.badge-cat{background:var(--c-primary-soft);color:var(--c-primary)}
.thumb-badge{position:absolute;left:12px;top:12px;z-index:2;box-shadow:0 2px 8px rgba(11,27,43,.12)}

.u-card.is-featured{grid-column:1/-1}
.u-card.is-featured .u-inner{display:grid;grid-template-columns:1.08fr .92fr}
.u-card.is-featured .u-thumb{aspect-ratio:auto;height:100%;min-height:268px}
.u-card.is-featured .u-body{padding:24px;display:flex;flex-direction:column;justify-content:center}
.u-card.is-featured .u-title{font-size:22px;-webkit-line-clamp:3;line-height:1.4}
.u-card.is-featured .u-summary{-webkit-line-clamp:3;font-size:15px}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:calc(var(--nav-h) + 24px);display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-primary)}
.side-card p{font-size:14px;line-height:1.78;color:var(--c-ink-2)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;color:var(--c-ink-2);background:var(--c-bg-2);border:1px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.tag:hover{color:var(--c-primary);background:var(--c-primary-soft);border-color:rgba(15,99,176,.24)}
.hot-list li + li{margin-top:10px}
.hot-item{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:12px;transition:background .2s var(--ease)}
.hot-item:hover{background:var(--c-bg-2)}
.hot-rank{
  flex:0 0 22px;height:22px;border-radius:6px;display:grid;place-items:center;
  font-size:12px;font-weight:700;color:var(--c-primary);background:var(--c-primary-soft);
}
.hot-item:nth-child(1) .hot-rank{color:#C64E15;background:var(--c-accent-soft)}
.hot-text{font-size:14px;line-height:1.55;color:var(--c-ink-2);font-weight:500}
.hot-item:hover .hot-text{color:var(--c-primary-700)}
.hot-time{display:block;margin-top:4px;font-size:12px;color:var(--c-ink-3)}

/* ---------- pager ---------- */
.pager{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px}
.pager-link{
  display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 14px;
  border-radius:999px;border:1px solid var(--c-line);background:#fff;
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .12s var(--ease);
}
.pager-link:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft)}
.pager-link.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.pager-link.is-current:hover{background:var(--c-primary-700)}

/* ---------- rhythm info ---------- */
.info-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.info-item{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);padding:22px;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.info-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.info-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:14px}
.info-icon svg{width:20px;height:20px}
.info-item h3{font-size:17px;margin-bottom:8px}
.info-item p{font-size:14px;line-height:1.75;color:var(--c-ink-2)}
.info-item .num{font-weight:700;color:var(--c-ink)}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--sh-1);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 20px;text-align:left;
  font-size:17px;font-weight:700;color:var(--c-ink);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:var(--c-bg-2)}
.faq-item.is-open .faq-q{color:var(--c-primary-700)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform .28s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:2px;right:2px;top:50%;height:1.8px;border-radius:2px;background:var(--c-ink-3);
  transition:transform .28s var(--ease),background .28s var(--ease);
}
.faq-icon::after{transform:rotate(90deg)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--c-primary)}
.faq-item.is-open .faq-icon::after{transform:rotate(0deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:0 20px 18px;font-size:15px;line-height:1.78;color:var(--c-ink-2)}

/* ---------- cta ---------- */
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:28px;align-items:center;
  background:linear-gradient(135deg,#F3F7FC 0%,#E9F1FA 100%);
  border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:36px;box-shadow:var(--sh-1);
}
.cta-panel h2{font-size:26px;margin-bottom:10px}
.cta-panel p{font-size:15px;color:var(--c-ink-2);max-width:520px}
.sub-form{display:flex;gap:12px;align-items:center}
.sub-form input{
  flex:1;height:46px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid var(--c-line);background:#F2F6FB;font-size:15px;color:var(--c-ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.sub-form input::placeholder{color:var(--c-ink-3)}
.sub-form input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(15,99,176,.14)}
.privacy-note{margin-top:10px;font-size:12.5px;color:var(--c-ink-3)}
.choice-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.choice{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;font-size:13px;color:var(--c-ink-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.choice:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft)}
.choice.is-on{color:#fff;background:var(--c-primary);border-color:var(--c-primary)}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:56px 0 28px;margin-top:var(--sec-gap)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);margin-bottom:14px}
.footer-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;color:var(--c-primary)}
.footer-about{font-size:14px;line-height:1.78;color:var(--c-ink-3);max-width:360px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:14px}
.footer-col ul li + li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--c-ink-3);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-contact p{font-size:14px;color:var(--c-ink-3);margin-bottom:10px}
.footer-contact a{color:var(--c-primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink-3);
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:44px;height:44px;border-radius:50%;background:#fff;color:var(--c-primary);
  display:grid;place-items:center;box-shadow:var(--sh-2);border:1px solid var(--c-line);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background .2s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.to-top svg{width:18px;height:18px}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .cat-banner h1{font-size:38px}
  .cat-layout{gap:26px}
}
@media (max-width:1024px){
  :root{--nav-h:72px;--sec-gap:64px}
  .container{padding:0 24px}
  .cat-layout{grid-template-columns:minmax(0,1fr);padding-top:44px}
  .sidebar{position:static;top:auto}
  .info-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cat-banner h1{font-size:34px}
  .section-title{font-size:26px}
}
@media (max-width:768px){
  :root{--nav-h:60px;--sec-gap:48px}
  body{font-size:15.5px}
  .container{padding:0 16px}
  .main-nav,.search{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn{display:none}
  .cat-banner{padding:calc(var(--nav-h) + 34px) 0 30px;min-height:0;
    background:
      linear-gradient(180deg,rgba(11,27,43,.78) 0%,rgba(11,27,43,.52) 60%,rgba(11,27,43,.36) 100%),
      url(/assets/images/backpic/back-1.png) center/cover no-repeat;}
  .cat-banner h1{font-size:28px}
  .cat-banner .banner-sub{font-size:15px}
  .banner-stats{gap:8px}
  .stat-chip{height:34px;padding:0 12px}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .u-card.is-featured .u-inner{grid-template-columns:minmax(0,1fr)}
  .u-card.is-featured .u-thumb{min-height:0;aspect-ratio:16/9}
  .u-card.is-featured .u-body{padding:18px}
  .u-card.is-featured .u-title{font-size:19px;-webkit-line-clamp:3}
  .section-title{font-size:22px}
  .section-desc{font-size:14px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:22px}
  .info-strip{grid-template-columns:minmax(0,1fr)}
  .faq-q{font-size:16px;padding:14px 16px}
  .faq-a-inner{padding:0 16px 16px;font-size:14.5px}
  .cta-panel{padding:24px 18px}
  .cta-panel h2{font-size:22px}
  .sub-form{flex-direction:column;align-items:stretch}
  .sub-form .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .u-body{padding:12px}
  .side-card{padding:16px}
  .cat-banner h1{font-size:25px}
  .banner-kicker{font-size:12px}
  .pager{gap:8px}
  .pager-link{min-width:42px;height:42px;font-size:13px;padding:0 12px}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F63B0;
  --c-primary-700:#0A4B87;
  --c-accent:#FF7A3D;
  --c-teal:#12B5A6;
  --c-bg:#F6F8FB;
  --c-bg-2:#EEF3FA;
  --c-line:#E6EDF5;
  --c-ink:#0B1B2B;
  --c-ink-2:#41566B;
  --c-ink-3:#7A8CA0;
  --radius:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --sh-1:0 1px 2px rgba(11,27,43,.04),0 8px 24px rgba(11,27,43,.06);
  --sh-2:0 14px 34px rgba(11,27,43,.13);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-700)}
button{font:inherit;cursor:pointer;color:inherit}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:800;color:var(--c-ink)}
p{margin:0}
time,.stat-num,.tip-num,.page-item{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--c-primary);padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.narrow{max-width:900px}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:72px;
  z-index:60;
  color:#fff;
  background:rgba(255,255,255,.10);
  border-bottom:1px solid rgba(255,255,255,.22);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  backdrop-filter:saturate(160%) blur(14px);
  transition:background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-header.is-scrolled{
  color:var(--c-ink);
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 8px 24px rgba(11,27,43,.08);
}
body.page-lite-header .site-header{
  color:var(--c-ink);
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 8px 24px rgba(11,27,43,.08);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:currentColor;flex:0 0 auto}
.brand:hover{color:currentColor}
.brand-mark{display:inline-flex;width:30px;height:30px;color:var(--c-primary);flex:0 0 auto}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.01em;color:currentColor}
.main-nav{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:72px;
  padding:0 14px;
  font-size:15.5px;
  font-weight:500;
  color:currentColor;
  opacity:.86;
  transition:opacity 200ms var(--ease)
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:20px;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background-color 200ms var(--ease)
}
.nav-link:hover{opacity:1}
.nav-link:hover::after{background:var(--c-accent)}
.nav-link.is-active{opacity:1;font-weight:700}
.nav-link.is-active::after{background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid transparent;
  background:transparent;
  color:currentColor;
  transition:background-color 200ms var(--ease),border-color 200ms var(--ease)
}
.icon-btn:hover{background:rgba(15,99,176,.08)}
.icon-btn svg{width:20px;height:20px}
.search-box{display:flex;align-items:center}
.search-input{
  width:0;opacity:0;height:42px;padding:0;border:1px solid transparent;
  border-radius:10px;background:#F2F6FB;color:var(--c-ink);
  transition:width 260ms var(--ease),opacity 200ms var(--ease),padding 260ms var(--ease),border-color 200ms var(--ease)
}
.search-input::placeholder{color:var(--c-ink-3)}
.search-box.is-open .search-input{width:216px;opacity:1;padding:0 14px;border-color:var(--c-line);margin-left:8px}
.search-input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.16);background:#fff}
.nav-toggle{display:none}
.header-cta{white-space:nowrap}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease),transform 160ms var(--ease)
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(15,99,176,.24)}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;box-shadow:0 10px 24px rgba(10,75,135,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:rgba(15,99,176,.08);color:var(--c-primary-700);border-color:var(--c-primary-700)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(360px,86vw);
  background:#fff;
  z-index:90;
  transform:translateX(100%);
  transition:transform 280ms var(--ease);
  display:flex;flex-direction:column;
  box-shadow:-16px 0 40px rgba(11,27,43,.14)
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,27,43,.42);
  opacity:0;visibility:hidden;z-index:80;
  transition:opacity 260ms var(--ease),visibility 260ms var(--ease)
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line)}
.drawer-head .brand-name{font-size:17px;color:var(--c-ink)}
.drawer-body{padding:16px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:6px}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:10px;
  color:var(--c-ink-2);font-size:16px;font-weight:500;
  transition:background-color 200ms var(--ease),color 200ms var(--ease)
}
.drawer-link:hover{background:var(--c-bg-2);color:var(--c-primary)}
.drawer-link.is-active{background:rgba(15,99,176,.08);color:var(--c-primary);font-weight:700}
.drawer-search{display:flex;gap:8px;margin:12px 0 8px}
.drawer-search input{flex:1;height:46px;padding:0 14px;border-radius:10px;border:1px solid var(--c-line);background:#F2F6FB}
.drawer-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.16);background:#fff}

/* ---------- hero ---------- */
.cat-hero{
  padding:140px 0 64px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line)
}
.breadcrumb{
  display:flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;color:var(--c-ink-3);margin-bottom:20px;flex-wrap:wrap
}
.breadcrumb a{color:var(--c-ink-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.crumb-sep{color:var(--c-ink-3);opacity:.7}
.cat-hero h1{font-size:44px;text-align:center;max-width:920px;margin:0 auto}
.lead{max-width:820px;margin:20px auto 0;font-size:17px;line-height:1.85;color:var(--c-ink-2);text-align:center}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:28px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600
}
.tag-primary{background:rgba(15,99,176,.08);color:var(--c-primary)}
.tag-teal{background:rgba(18,181,166,.12);color:#0C8C80}
.tag-accent{background:rgba(255,122,61,.12);color:#D9550F}
.hero-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:56px;margin-top:36px}
.stat{text-align:center}
.stat dt{font-size:13px;color:var(--c-ink-3);margin-bottom:6px}
.stat-num{font-size:28px;font-weight:800;color:var(--c-primary);line-height:1.2}

/* ---------- section ---------- */
.section{padding:80px 0}
.section-alt{background:var(--c-bg-2)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:32px
}
.section-title{font-size:30px;display:flex;align-items:center;gap:12px}
.section-title::before{
  content:"";display:inline-block;width:4px;height:22px;border-radius:2px;
  background:var(--c-primary);flex:0 0 auto
}
.section-desc{margin-top:10px;font-size:15.5px;color:var(--c-ink-2)}
.section-head-center{flex-direction:column;align-items:center;text-align:center}
.section-head-center .section-title{justify-content:center}

/* ---------- filter ---------- */
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.filter-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14px;font-weight:500;
  transition:background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease)
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ---------- stream list ---------- */
.stream{border-top:1px solid var(--c-line)}
.stream-item{transition:background-color 220ms var(--ease)}
.stream-item + .stream-item{border-top:1px solid var(--c-line)}
.stream-item:hover{background:var(--c-bg-2)}
.stream-link{
  display:grid;
  grid-template-columns:200px 1fr 44px;
  gap:24px;
  align-items:center;
  padding:26px 20px;
  color:inherit
}
.stream-link:hover{color:inherit}
.stream-thumb{
  aspect-ratio:3/2;border-radius:12px;overflow:hidden;background:var(--c-bg-2);
  box-shadow:var(--sh-1)
}
.stream-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.stream-item:hover .stream-thumb img{transform:scale(1.04)}
.stream-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-3)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);display:inline-block;flex:0 0 auto}
.meta-cat{color:var(--c-primary);font-weight:600}
.meta-sep{color:var(--c-ink-3);opacity:.7}
.stream-title{font-size:19px;margin:10px 0 8px;transition:color 200ms var(--ease)}
.stream-item:hover .stream-title{color:var(--c-primary-700)}
.stream-excerpt{
  font-size:15px;color:var(--c-ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
}
.stream-arrow{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  transition:background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease)
}
.stream-item:hover .stream-arrow{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ---------- pagination ---------- */
.pagination{display:flex;justify-content:center;align-items:center;gap:10px;flex-wrap:wrap;margin-top:40px}
.page-item{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:44px;padding:0 18px;
  border-radius:999px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink-2);font-size:15px;
  transition:background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease)
}
.page-item:hover{border-color:var(--c-primary);color:var(--c-primary)}
.page-item.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:700}

/* ---------- tips ---------- */
.tips{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.tip{border-left:3px solid var(--c-line);padding:2px 0 2px 18px;transition:border-color 220ms var(--ease)}
.tip:hover{border-left-color:var(--c-primary)}
.tip-num{font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.08em}
.tip h3{font-size:17px;margin:8px 0 8px}
.tip p{font-size:14.5px;color:var(--c-ink-2);line-height:1.75}

/* ---------- faq ---------- */
.faq{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);overflow:hidden
}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 20px;
  background:none;border:0;text-align:left;
  font-size:17px;font-weight:700;color:var(--c-ink);
  transition:color 200ms var(--ease),background-color 200ms var(--ease)
}
.faq-q:hover{color:var(--c-primary);background:rgba(238,243,250,.7)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;color:var(--c-primary)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform 260ms var(--ease),opacity 260ms var(--ease)
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- next links ---------- */
.next-links{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.next-card{
  display:block;padding:28px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--sh-1);color:inherit;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease)
}
.next-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(15,99,176,.32);color:inherit}
.next-card h3{font-size:19px;margin-bottom:10px}
.next-card p{font-size:15px;color:var(--c-ink-2)}
.next-more{display:inline-block;margin-top:16px;font-size:15px;font-weight:600;color:var(--c-primary)}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-bg-2);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:56px 0
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-copy h2{font-size:26px}
.cta-copy p{margin-top:10px;font-size:15.5px;color:var(--c-ink-2);max-width:540px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.field{
  height:46px;min-width:260px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:10px;background:#F2F6FB;color:var(--c-ink);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease),background-color 200ms var(--ease)
}
.field::placeholder{color:var(--c-ink-3)}
.field:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,99,176,.16);background:#fff}
.privacy{margin-top:18px;font-size:12.5px;color:var(--c-ink-3)}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--c-ink)}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:var(--c-ink-3);max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--c-ink-3)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-contact p{font-size:14px;line-height:1.8;color:var(--c-ink-3);margin-bottom:10px}
.footer-contact a{color:var(--c-primary)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink-3)
}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-2);
  color:var(--c-primary);z-index:50;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 240ms var(--ease),visibility 240ms var(--ease),transform 240ms var(--ease)
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top svg{width:18px;height:18px}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 28px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .cat-hero{padding:130px 0 56px}
  .cat-hero h1{font-size:36px}
  .section{padding:64px 0}
  .section-title{font-size:26px}
  .stream-link{grid-template-columns:170px 1fr 44px;gap:20px;padding:22px 16px}
  .tips{grid-template-columns:repeat(2,1fr);gap:24px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .site-header,.header-inner{height:60px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .search-box{display:none}
  .cat-hero{padding:104px 0 44px}
  .cat-hero h1{font-size:28px}
  .lead{font-size:15.5px;margin-top:16px}
  .hero-stats{gap:32px;margin-top:28px}
  .stat-num{font-size:24px}
  .section{padding:48px 0}
  .section-title{font-size:22px}
  .section-head{margin-bottom:24px}
  .stream-link{grid-template-columns:1fr;gap:16px;padding:20px 12px}
  .stream-thumb{aspect-ratio:16/9}
  .stream-arrow{display:none}
  .tips{grid-template-columns:1fr;gap:20px}
  .next-links{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-form{width:100%}
  .field{min-width:0;width:100%}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-about{max-width:none}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:16px}
  .breadcrumb{font-size:13px}
}
@media (max-width:520px){
  .cat-hero h1{font-size:26px}
  .stream-link{padding:18px 10px}
  .stream-item:hover{background:transparent}
  .footer-grid{grid-template-columns:1fr}
  .to-top{right:16px;bottom:16px}
}