/* roulang page: index */
:root{
  --bg-0:#0A1216;
  --bg-1:#0E1B21;
  --bg-2:#14262E;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --brand:#17E0A4;
  --action:#FF6B2C;
  --cool:#6FE3FF;
  --ok:#35D07F;
  --warn:#FF4D5E;
  --t-1:#F2F7F6;
  --t-2:#9DB3B1;
  --t-3:#6B8386;
  --r-card:16px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:12px;
  --sh:0 10px 28px rgba(0,0,0,.45);
  --sh-h:0 18px 42px rgba(0,0,0,.55);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--t-1);text-decoration:none;transition:color var(--ease),opacity var(--ease)}
a:hover{color:var(--brand)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--t-1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(23,224,164,.28)}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section.alt{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.14em;color:var(--brand);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section-title{font-size:clamp(22px,2.6vw,34px);font-weight:700;margin-top:12px;letter-spacing:.01em}
.section-sub{margin-top:10px;color:var(--t-2);font-size:15px;max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--t-2);font-size:14px;font-weight:500;white-space:nowrap}
.link-more span{transition:transform var(--ease);display:inline-block}
.link-more:hover{color:var(--brand)}
.link-more:hover span{transform:translateX(4px)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;min-height:44px;transition:all var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--action);color:#12181B;box-shadow:0 8px 26px rgba(255,107,44,.28)}
.btn-primary:hover{background:#FF8347;color:#12181B;transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,107,44,.42)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--glass);color:var(--t-1);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-brand{background:rgba(23,224,164,.12);color:var(--brand);border:1px solid rgba(23,224,164,.45)}
.btn-brand:hover{background:rgba(23,224,164,.2);color:var(--brand)}
.btn-sm{padding:10px 20px;font-size:14px;min-height:40px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important}

/* ============ 标签 ============ */
.tag{display:inline-flex;align-items:center;font-size:12px;letter-spacing:.02em;padding:4px 10px;border-radius:6px;border:1px solid var(--line);color:var(--t-2);background:rgba(10,18,22,.6);font-weight:500}
.tag-cat{color:var(--brand);border-color:rgba(23,224,164,.4);background:rgba(10,18,22,.72)}
.tag-hot{color:#12181B;background:var(--action);border-color:var(--action);font-weight:700}

/* ============ 顶部导航 ============ */
.site-header{position:relative;z-index:80}
.topbar{
  position:sticky;top:0;z-index:90;
  background:rgba(10,18,22,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{display:flex;align-items:center;gap:24px;min-height:74px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),#0E9C76);
  color:#06201A;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 8px 22px rgba(23,224,164,.25);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--t-1)}
.logo-text span{font-size:11px;color:var(--t-3);letter-spacing:.16em}
.logo:hover .logo-text strong{color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;flex-wrap:wrap}
.main-nav a{
  font-size:15px;color:var(--t-2);padding:8px 12px;border-radius:10px;font-weight:500;
  transition:all var(--ease);white-space:nowrap;
}
.main-nav a:hover{color:var(--t-1);background:rgba(255,255,255,.05)}
.main-nav a.is-active{color:var(--brand);background:rgba(23,224,164,.1)}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{display:flex;align-items:center;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);padding:4px 6px 4px 16px;transition:all var(--ease)}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18)}
.search-box input{background:none;border:0;color:var(--t-1);width:150px;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--t-3)}
.search-box button{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:var(--brand);transition:background var(--ease)}
.search-box button:hover{background:rgba(23,224,164,.14)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);place-items:center;color:var(--t-1);background:var(--glass)}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 频道行 ============ */
.channelbar{background:var(--bg-1);border-bottom:1px solid var(--line);position:relative}
.channelbar::before,.channelbar::after{
  content:"";position:absolute;top:0;bottom:0;width:40px;pointer-events:none;z-index:2;
}
.channelbar::before{left:0;background:linear-gradient(90deg,var(--bg-1),transparent)}
.channelbar::after{right:0;background:linear-gradient(270deg,var(--bg-1),transparent)}
.channel-tabs{
  display:flex;gap:10px;align-items:center;padding:14px 0;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tabs a{
  flex:0 0 auto;scroll-snap-align:start;
  font-size:14px;font-weight:500;color:var(--t-2);
  border:1px solid var(--line);border-radius:var(--r-btn);
  padding:8px 18px;min-height:38px;display:inline-flex;align-items:center;
  transition:all var(--ease);
}
.channel-tabs a:hover{color:var(--t-1);border-color:rgba(23,224,164,.4)}
.channel-tabs a.is-active{
  color:#06201A;background:var(--brand);border-color:var(--brand);font-weight:700;
  box-shadow:0 0 18px rgba(23,224,164,.35);
}

/* ============ 抽屉 ============ */
.drawer-mask{position:fixed;inset:0;background:rgba(4,8,10,.66);opacity:0;visibility:hidden;transition:all var(--ease);z-index:95}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);z-index:100;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  padding:22px 20px 40px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--t-2);font-size:20px}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-search{display:flex;gap:8px;margin-bottom:22px}
.drawer-search input{flex:1;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-input);padding:12px 14px;color:var(--t-1);outline:none}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18)}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;font-size:15px;color:var(--t-2);
  border-radius:10px;border-left:3px solid transparent;transition:all var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--t-1)}
.drawer-nav a.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(23,224,164,.08);font-weight:600}
.drawer-title{font-size:12px;letter-spacing:.16em;color:var(--t-3);margin:24px 0 10px;padding-left:14px}
.drawer .btn{margin-top:24px}

/* ============ Hero ============ */
.hero{position:relative;min-height:82vh;display:flex;align-items:flex-end;overflow:hidden;isolation:isolate}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero-veil{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(10,18,22,.55) 0%,rgba(10,18,22,.35) 38%,rgba(10,18,22,.92) 88%,var(--bg-0) 100%),
    linear-gradient(90deg,rgba(10,18,22,.86) 0%,rgba(10,18,22,.35) 55%,rgba(10,18,22,.15) 100%),
    radial-gradient(900px 420px at 12% 78%,rgba(23,224,164,.16),transparent 70%);
}
.hero-inner{padding:120px 24px 64px;width:100%;max-width:1280px;margin:0 auto}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.1em;
  color:var(--brand);background:rgba(23,224,164,.1);border:1px solid rgba(23,224,164,.35);
  border-radius:var(--r-btn);padding:7px 16px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.01em;
  max-width:880px;text-shadow:0 4px 26px rgba(0,0,0,.6);
}
.hero-sub{margin-top:18px;font-size:clamp(16px,1.5vw,19px);color:#CDE2DE;max-width:560px}
.hero-btns{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:52px;
  background:var(--glass);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-card);
  padding:20px 24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);max-width:820px;
}
.hero-stats li{display:flex;flex-direction:column;gap:4px}
.hero-stats b{font-size:clamp(20px,2.2vw,28px);font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1}
.hero-stats span{font-size:12.5px;color:var(--t-2)}

/* ============ 横滑片库 ============ */
.rail-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}
.rail-nav{display:flex;gap:10px}
.rail-nav button{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);color:var(--t-2);
  display:grid;place-items:center;transition:all var(--ease);background:var(--bg-2);
}
.rail-nav button:hover{border-color:var(--brand);color:var(--brand);background:rgba(23,224,164,.08)}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:12px;-ms-overflow-style:none;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail .card{flex:0 0 320px;scroll-snap-align:start}

/* ============ 卡片 ============ */
.card{
  background:var(--bg-2);border:1px solid rgba(255,255,255,.06);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(23,224,164,.28)}
.card-media{position:relative;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.4,0,.2,1)}
.card:hover .card-media img{transform:scale(1.04)}
.ratio-16x9{aspect-ratio:16/9}
.ratio-4x3{aspect-ratio:4/3}
.ratio-16x10{aspect-ratio:16/10}
.card-media .tag{position:absolute;top:12px;left:12px;z-index:2}
.card-mark{
  position:absolute;right:12px;bottom:12px;font-size:12px;font-weight:600;color:#EAF6F3;
  background:rgba(10,18,22,.7);border:1px solid rgba(255,255,255,.14);border-radius:6px;
  padding:3px 8px;backdrop-filter:blur(6px);font-variant-numeric:tabular-nums;
}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.45}
.card-title a{color:var(--t-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-title a:hover{color:var(--brand)}
.card-desc{font-size:14px;color:var(--t-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--t-3);margin-top:auto}
.card-meta em{font-style:normal;color:var(--brand)}

/* ============ 特性条 ============ */
.pillars{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:20px}
.pillar{
  background:var(--bg-2);border:1px solid rgba(255,255,255,.06);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);transition:all var(--ease);
}
.pillar:hover{transform:translateY(-4px);border-color:rgba(23,224,164,.3);box-shadow:var(--sh-h)}
.pillar .num{font-size:12px;letter-spacing:.16em;color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums}
.pillar h3{font-size:19px;margin:12px 0 10px;font-weight:600}
.pillar p{font-size:14px;color:var(--t-2);line-height:1.8}
.pillar:first-child{background:linear-gradient(150deg,rgba(23,224,164,.12),rgba(20,38,46,.9));border-color:rgba(23,224,164,.28)}

/* ============ CMS 最新信息 ============ */
.cms-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:28px;align-items:start}
.cms-lead .card-body{gap:14px}
.cms-lead .card-title{font-size:22px}
.cms-lead .card-desc{-webkit-line-clamp:3;font-size:15px}
.cms-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.cms-item{
  display:flex;align-items:center;gap:16px;padding:18px 4px;border-bottom:1px solid var(--line);
  transition:background var(--ease);border-radius:10px;
}
.cms-item:hover{background:rgba(20,38,46,.7);padding-left:12px;padding-right:12px}
.cms-item-body{display:flex;flex-direction:column;gap:6px;min-width:0;flex:1}
.cms-item-title{font-size:16px;font-weight:600;color:var(--t-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cms-item:hover .cms-item-title{color:var(--brand)}
.cms-item-desc{font-size:13.5px;color:var(--t-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cms-item-meta{display:flex;gap:12px;font-size:12.5px;color:var(--t-3);align-items:center}
.cms-item-meta em{font-style:normal;color:var(--brand)}
.cms-arrow{color:var(--t-3);font-size:18px;transition:transform var(--ease),color var(--ease);flex-shrink:0}
.cms-item:hover .cms-arrow{transform:translateX(4px);color:var(--brand)}
.empty-state{
  border:1px dashed rgba(23,224,164,.4);border-radius:var(--r-card);padding:56px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:16px;background:rgba(20,38,46,.4);
}
.empty-state svg{color:var(--brand)}
.empty-state p{color:var(--t-2);font-size:15px}

/* ============ 1 大 + 3 小 ============ */
.mix{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px}
.mix-side{display:flex;flex-direction:column;gap:18px}
.mix-side .card{flex-direction:row;align-items:stretch}
.mix-side .card-media{flex:0 0 42%;aspect-ratio:auto}
.mix-side .card-body{padding:16px 18px}
.mix-side .card-title{font-size:15.5px}
.mix-side .card-desc{-webkit-line-clamp:2;font-size:13.5px}

/* ============ 四列 ============ */
.quad{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}

/* ============ 图文 5:7 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:stretch}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:340px;box-shadow:var(--sh)}
.split-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.split-media .veil{position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(10,18,22,.92))}
.split-media .cap{position:absolute;left:22px;right:22px;bottom:22px}
.split-media .cap h3{font-size:19px;font-weight:700}
.split-media .cap p{font-size:13.5px;color:#BCD3CF;margin-top:6px}
.split-list{display:grid;grid-template-rows:repeat(4,1fr);gap:12px}
.split-row{
  display:flex;gap:14px;align-items:center;background:var(--bg-2);border:1px solid rgba(255,255,255,.06);
  border-radius:14px;padding:12px 16px;transition:all var(--ease);
}
.split-row:hover{border-color:rgba(23,224,164,.3);transform:translateX(4px)}
.split-row .idx{font-size:13px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;flex:0 0 28px}
.split-row .txt{min-width:0;flex:1}
.split-row h4{font-size:15.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.split-row p{font-size:13px;color:var(--t-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:3px}
.split-row:hover h4{color:var(--brand)}

/* ============ 榜单 ============ */
.rank-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}
.rank{display:flex;flex-direction:column;gap:14px}
.rank-item{
  display:grid;grid-template-columns:56px 118px minmax(0,1fr);gap:18px;align-items:center;
  background:var(--bg-2);border:1px solid rgba(255,255,255,.06);border-radius:var(--r-card);
  padding:14px 20px;transition:all var(--ease);
}
.rank-item:hover{border-color:rgba(23,224,164,.3);transform:translateY(-3px);box-shadow:var(--sh)}
.rank-num{font-size:32px;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(23,224,164,.65);font-variant-numeric:tabular-nums;line-height:1}
.rank-item:nth-child(-n+3) .rank-num{-webkit-text-stroke:1px var(--action);color:rgba(255,107,44,.14)}
.rank-thumb{width:118px;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:var(--bg-1)}
.rank-thumb img{width:100%;height:100%;object-fit:cover}
.rank-body{min-width:0;display:flex;flex-direction:column;gap:8px}
.rank-body h4{font-size:16px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-item:hover h4{color:var(--brand)}
.rank-tags{display:flex;gap:8px;flex-wrap:wrap}
.heat{height:6px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:2px}
.heat i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--cool))}
.rank-aside{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.rank-aside .card-body{padding:14px 16px}
.rank-aside .card-title{font-size:14.5px}

/* ============ CTA ============ */
.cta{
  position:relative;overflow:hidden;background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-bg{position:absolute;inset:0;object-fit:cover;width:100%;height:100%;opacity:.22;z-index:0}
.cta::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    repeating-linear-gradient(115deg,rgba(23,224,164,.09) 0 2px,transparent 2px 34px),
    linear-gradient(100deg,rgba(23,224,164,.16),transparent 52%),
    linear-gradient(180deg,rgba(10,18,22,.72),rgba(10,18,22,.94));
}
.cta .container{position:relative;z-index:2}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,430px);gap:44px;align-items:center;padding:76px 0}
.cta h2{font-size:clamp(22px,2.6vw,32px);font-weight:700}
.cta p{color:var(--t-2);margin-top:14px;font-size:15px;max-width:520px}
.cta-form{display:flex;flex-direction:column;gap:12px;background:rgba(14,27,33,.72);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;backdrop-filter:blur(14px)}
.cta-form label{font-size:13px;color:var(--t-2)}
.cta-form input{
  width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-input);
  padding:13px 16px;color:var(--t-1);outline:none;transition:all var(--ease);min-height:46px;
}
.cta-form input::placeholder{color:var(--t-3)}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18)}
.cta-form input.is-error{border-color:var(--warn)}
.cta-form input.is-ok{border-color:var(--ok)}
.cta-msg{font-size:13.5px;min-height:20px;color:var(--t-3)}
.cta-msg.err{color:var(--warn)}
.cta-msg.ok{color:var(--ok)}

/* ============ FAQ ============ */
.faq{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;max-width:920px;margin:0 auto}
.faq details{
  background:var(--bg-1);border:1px solid var(--line);border-radius:14px;
  padding:0 22px;transition:all var(--ease);border-left:3px solid transparent;
}
.faq details:hover{border-color:rgba(23,224,164,.28)}
.faq details[open]{border-left-color:var(--brand);background:#101F26}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:18px;font-weight:600;color:var(--t-1);
}
.faq summary::-webkit-details-marker{display:none}
.faq .ico{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand);transition:transform .25s ease,background var(--ease);
}
.faq details[open] .ico{transform:rotate(180deg);background:rgba(23,224,164,.14);border-color:rgba(23,224,164,.4)}
.faq .ans{padding:0 0 22px;color:var(--t-2);font-size:15px;line-height:1.85;border-top:1px solid var(--line);padding-top:18px;margin-top:-2px}

/* ============ 页脚 ============ */
.site-footer{background:#081014;border-top:1px solid var(--line);padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-logo{display:flex;align-items:center;gap:12px}
.footer-logo .logo-mark{width:38px;height:38px;font-size:14px}
.footer-brand p{color:var(--t-2);font-size:14px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--t-1)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:var(--t-2);font-size:14px}
.footer-col a:hover{color:var(--brand)}
.footer-col li span{color:var(--t-2);font-size:14px}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:24px 0 32px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}
.footer-bottom p{max-width:760px;line-height:1.8}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .main-nav a{padding:8px 9px;font-size:14px}
  .search-box input{width:112px}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .main-nav{display:none}
  .search-box{display:none}
  .nav-toggle{display:grid}
  .hero{min-height:70vh}
  .hero-inner{padding:104px 24px 56px}
  .pillars{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quad{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cms-grid{grid-template-columns:1fr}
  .mix{grid-template-columns:1fr}
  .mix-side{flex-direction:row;flex-wrap:wrap}
  .mix-side .card{flex:1 1 calc(50% - 9px)}
  .split{grid-template-columns:1fr}
  .split-media{min-height:300px;aspect-ratio:16/9}
  .rank-wrap{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rail .card{flex:0 0 300px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .logo-text span{display:none}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));padding:16px 18px;margin-top:40px}
  .hero-btns .btn{flex:1 1 100%}
  .quad{grid-template-columns:1fr}
  .mix-side .card{flex:1 1 100%;flex-direction:column}
  .mix-side .card-media{flex:none;aspect-ratio:16/9}
  .rank-item{grid-template-columns:44px 96px minmax(0,1fr);gap:12px;padding:12px 14px}
  .rank-thumb{width:96px}
  .rank-num{font-size:26px}
  .rank-aside{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr}
  .faq summary{font-size:16px;padding:18px 0}
  .section-head{margin-bottom:28px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .section{padding:48px 0}
  .hero{min-height:64vh}
  .hero-inner{padding:92px 16px 44px}
  .hero h1{font-size:clamp(28px,8vw,34px)}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .hero-stats b{font-size:20px}
  .rail .card{flex:0 0 74vw}
  .rail-nav{display:none}
  .cta-form{padding:18px}
  .split-row{padding:12px}
  .rank-item{grid-template-columns:36px 78px minmax(0,1fr);gap:10px}
  .rank-thumb{width:78px}
  .rank-num{font-size:22px}
  .rank-aside{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: article */
:root{
  --bg-0:#0A1216; --bg-1:#0E1B21; --bg-2:#14262E;
  --glass:rgba(255,255,255,.06); --line:rgba(255,255,255,.10); --line-soft:rgba(255,255,255,.06);
  --brand:#17E0A4; --action:#FF6B2C; --cool:#6FE3FF;
  --t-1:#F2F7F6; --t-2:#9DB3B1; --t-3:#6B8386;
  --ok:#35D07F; --warn:#FF4D5E;
  --r-card:16px; --r-img:14px; --r-btn:999px; --r-input:12px;
  --sh-card:0 10px 28px rgba(0,0,0,.45); --sh-hover:0 18px 42px rgba(0,0,0,.55);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --s1:8px; --s2:12px; --s3:16px; --s4:24px; --s5:32px; --s6:48px; --s7:64px; --s8:96px;
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--bg-0); color:var(--t-1); font-family:var(--font);
  font-size:16px; line-height:1.8; font-weight:400;
  background-image:radial-gradient(1100px 520px at 12% -8%, rgba(23,224,164,.11), transparent 62%),
                   radial-gradient(900px 460px at 92% 4%, rgba(111,227,255,.07), transparent 60%);
  background-repeat:no-repeat; overflow-x:hidden;
}
img{max-width:100%; display:block; border:0;}
a{color:var(--t-1); text-decoration:none; transition:color var(--ease), border-color var(--ease), background-color var(--ease), transform var(--ease);}
a:hover{color:var(--brand);}
button,input{font-family:inherit; font-size:inherit; color:inherit;}
ul,ol{margin:0; padding:0; list-style:none;}
h1,h2,h3,h4{margin:0; line-height:1.25; font-weight:700; color:var(--t-1);}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand); outline-offset:3px; border-radius:4px;}
.container{width:100%; max-width:1280px; margin:0 auto; padding:0 24px;}
.container-narrow{width:100%; max-width:1200px; margin:0 auto; padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ Header ============ */
.site-header{position:sticky; top:0; z-index:60;}
.header-top{
  background:rgba(10,18,22,.82);
  -webkit-backdrop-filter:blur(14px); backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex; align-items:center; gap:var(--s4); min-height:72px;}
.brand{display:flex; align-items:center; gap:10px; flex:0 0 auto; min-height:44px;}
.logo-mark{
  width:40px; height:40px; border-radius:12px; display:grid; place-items:center;
  background:linear-gradient(140deg,var(--brand),#0F8F6B); color:#04140F;
  font-weight:800; font-size:14px; letter-spacing:.02em;
  box-shadow:0 8px 22px rgba(23,224,164,.24);
}
.logo-text{display:flex; flex-direction:column; line-height:1.15;}
.logo-text strong{font-size:15px; font-weight:800; letter-spacing:.01em; color:var(--t-1);}
.logo-text span{font-size:11px; color:var(--t-3); letter-spacing:.06em;}
.main-nav{display:flex; align-items:center; gap:4px; margin-left:auto; flex-wrap:nowrap;}
.main-nav a{
  padding:9px 12px; border-radius:var(--r-btn); font-size:14px; color:var(--t-2); white-space:nowrap;
}
.main-nav a:hover{color:var(--t-1); background:var(--glass);}
.main-nav a.is-active{color:var(--brand); background:rgba(23,224,164,.10);}
.nav-actions{display:flex; align-items:center; gap:10px; flex:0 0 auto;}
.search-form{
  display:flex; align-items:center; gap:6px; background:var(--bg-2);
  border:1px solid var(--line-soft); border-radius:var(--r-btn); padding:4px 6px 4px 12px;
}
.search-form input{
  width:132px; border:0; background:transparent; outline:none; font-size:13px; color:var(--t-1); padding:6px 0;
}
.search-form input::placeholder{color:var(--t-3);}
.search-form:focus-within{border-color:var(--brand); box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.search-form button{
  width:32px; height:32px; border-radius:50%; border:0; cursor:pointer;
  background:rgba(23,224,164,.14); color:var(--brand); display:grid; place-items:center;
}
.search-form button:hover{background:var(--brand); color:#04140F;}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  border-radius:var(--r-btn); padding:11px 22px; font-size:14px; font-weight:600;
  border:1px solid transparent; cursor:pointer; min-height:44px; line-height:1;
}
.btn-primary{background:var(--action); color:#22100A; box-shadow:0 8px 26px rgba(255,107,44,.28);}
.btn-primary:hover{background:#FF8148; color:#22100A; transform:translateY(-2px); box-shadow:0 12px 30px rgba(255,107,44,.38);}
.btn-ghost{background:var(--glass); border-color:var(--line); color:var(--t-1); -webkit-backdrop-filter:blur(14px); backdrop-filter:blur(14px);}
.btn-ghost:hover{border-color:var(--brand); color:var(--brand); transform:translateY(-2px);}
.btn-ghost-sm{padding:9px 18px; font-size:13px; min-height:40px;}
.btn:disabled{opacity:.45; cursor:not-allowed; transform:none;}
.link-more{display:inline-flex; align-items:center; gap:6px; color:var(--brand); font-size:13px; font-weight:600;}
.link-more i{transition:transform var(--ease);}
.link-more:hover i{transform:translateX(4px);}
.burger{
  display:none; width:44px; height:44px; border-radius:12px; border:1px solid var(--line);
  background:var(--glass); color:var(--t-1); cursor:pointer; place-items:center;
}
.header-icon{
  display:none; width:44px; height:44px; border-radius:12px; border:1px solid var(--line);
  background:var(--glass); color:var(--t-1); cursor:pointer; place-items:center;
}

/* channel row */
.channel-bar{border-bottom:1px solid var(--line-soft); background:rgba(14,27,33,.72);}
.channel-inner{position:relative; display:flex; align-items:center; padding:10px 0;}
.channel-inner::before,.channel-inner::after{
  content:""; position:absolute; top:0; bottom:0; width:48px; pointer-events:none; z-index:2;
}
.channel-inner::before{left:0; background:linear-gradient(90deg,var(--bg-0),transparent);}
.channel-inner::after{right:0; background:linear-gradient(270deg,var(--bg-0),transparent);}
.channels{
  display:flex; gap:10px; overflow-x:auto; scroll-snap-type:x proximity;
  padding:4px 48px; scrollbar-width:none; width:100%;
}
.channels::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto; scroll-snap-align:start; padding:8px 16px; border-radius:var(--r-btn);
  border:1px solid var(--line); color:var(--t-2); font-size:13px; white-space:nowrap; background:transparent;
}
.chip:hover{color:var(--t-1); border-color:rgba(23,224,164,.45);}
.chip.is-active{
  background:rgba(23,224,164,.14); border-color:var(--brand); color:var(--brand);
  box-shadow:0 0 18px rgba(23,224,164,.20);
}

/* drawer */
.drawer{
  position:fixed; top:0; right:0; width:min(88vw,340px); height:100%; z-index:90;
  background:var(--bg-1); border-left:1px solid var(--line); padding:24px 20px 32px;
  transform:translateX(102%); transition:transform .26s cubic-bezier(.4,0,.2,1); overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:16px;}
.drawer-close{width:44px; height:44px; border-radius:12px; border:1px solid var(--line); background:var(--glass); color:var(--t-1); cursor:pointer;}
.drawer nav{display:flex; flex-direction:column; margin-bottom:18px;}
.drawer nav a{padding:0 12px; min-height:48px; display:flex; align-items:center; font-size:15px; color:var(--t-2); border-left:3px solid transparent;}
.drawer nav a.is-active{color:var(--brand); border-left-color:var(--brand); background:rgba(23,224,164,.08);}
.drawer .drawer-chips{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:20px;}
.drawer .search-form{width:100%;}
.drawer .search-form input{width:100%;}
.drawer-overlay{position:fixed; inset:0; background:rgba(4,8,10,.6); z-index:80; opacity:0; visibility:hidden; transition:opacity var(--ease);}
.drawer-overlay.is-open{opacity:1; visibility:visible;}

/* ============ Breadcrumb ============ */
.breadcrumb-bar{border-bottom:1px solid var(--line-soft); background:var(--bg-1);}
.breadcrumb{display:flex; align-items:center; flex-wrap:wrap; gap:8px; padding:14px 0; font-size:13px; color:var(--t-2);}
.breadcrumb .sep{color:var(--t-3);}
.breadcrumb .current{color:var(--t-3); max-width:60vw; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}

/* ============ Article head ============ */
.article-head{padding:56px 0 32px;}
.article-head .inner{max-width:880px;}
.cat-badge{
  display:inline-flex; align-items:center; gap:8px; font-size:12px; letter-spacing:.02em;
  padding:6px 12px; border-radius:6px; border:1px solid rgba(23,224,164,.45); color:var(--brand);
  background:rgba(23,224,164,.08); margin-bottom:18px;
}
.article-title{font-size:clamp(24px,3.4vw,40px); line-height:1.25; font-weight:800; letter-spacing:.005em;}
.article-rule{height:1px; background:var(--line); margin:24px 0 16px;}
.article-meta{display:flex; flex-wrap:wrap; align-items:center; gap:18px; font-size:13px; color:var(--t-3);}
.article-meta span{display:inline-flex; align-items:center; gap:6px;}
.article-meta i{color:var(--brand);}
.reading-progress{height:3px; border-radius:999px; background:var(--bg-2); overflow:hidden; margin-top:22px; max-width:320px;}
.reading-progress b{display:block; height:100%; width:0; background:linear-gradient(90deg,var(--brand),var(--cool)); transition:width .2s linear;}

/* ============ Layout ============ */
.article-layout{display:grid; grid-template-columns:minmax(0,1fr) 300px; gap:var(--s7); padding-bottom:var(--s6);}
.article-body{min-width:0; max-width:820px;}
.prose{font-size:16.5px; line-height:1.9; color:#DCE7E5;}
.prose > * + *{margin-top:1.2em;}
.prose p{margin:0;}
.prose h2{
  font-size:clamp(20px,2.2vw,26px); font-weight:700; margin:40px 0 16px; padding-left:14px;
  position:relative; color:var(--t-1); line-height:1.35;
}
.prose h2::before{content:""; position:absolute; left:0; top:.18em; bottom:.18em; width:4px; border-radius:2px; background:var(--brand);}
.prose h3{font-size:18px; font-weight:600; margin:32px 0 12px; color:var(--t-1);}
.prose h4{font-size:16px; font-weight:600; margin:24px 0 10px; color:var(--t-1);}
.prose ul,.prose ol{padding-left:0;}
.prose ul li{position:relative; padding-left:22px; margin:8px 0;}
.prose ul li::before{
  content:""; position:absolute; left:4px; top:.85em; width:7px; height:7px; border-radius:2px;
  background:var(--brand); transform:translateY(-50%);
}
.prose ol{counter-reset:li;}
.prose ol li{position:relative; padding-left:30px; margin:8px 0; counter-increment:li;}
.prose ol li::before{
  content:counter(li); position:absolute; left:0; top:.28em; width:20px; height:20px; border-radius:6px;
  background:rgba(23,224,164,.14); color:var(--brand); font-size:12px; font-weight:700;
  display:grid; place-items:center; line-height:1;
}
.prose blockquote{
  margin:24px 0; padding:18px 22px; background:var(--bg-2); border-left:4px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0; color:var(--t-2);
}
.prose blockquote p{color:var(--t-2);}
.prose a{color:var(--brand); text-decoration:underline; text-underline-offset:3px;}
.prose img{border-radius:var(--r-img); margin:24px auto; width:100%;}
.prose figure{margin:24px 0;}
.prose figcaption{font-size:13px; color:var(--t-3); text-align:center; margin-top:10px;}
.prose table{width:100%; border-collapse:collapse; font-size:14px; border-radius:var(--r-img); overflow:hidden;}
.prose thead th{background:rgba(23,224,164,.12); color:var(--t-1); font-weight:600;}
.prose th,.prose td{padding:12px 14px; border:1px solid var(--line-soft); text-align:left;}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.035);}
.prose hr{border:0; height:1px; background:var(--line); margin:32px 0;}
.prose strong{color:var(--t-1); font-weight:600;}
.prose code{background:var(--bg-2); padding:2px 6px; border-radius:6px; font-size:.9em;}

/* empty */
.empty-state{
  border:1px dashed rgba(23,224,164,.45); border-radius:var(--r-card); padding:48px 28px;
  text-align:center; background:var(--bg-1);
}
.empty-state .ico{font-size:30px; color:var(--brand); margin-bottom:14px;}
.empty-state h3{font-size:19px; margin-bottom:8px;}
.empty-state p{color:var(--t-2); font-size:14.5px; margin-bottom:20px;}

/* ============ Aside ============ */
.article-aside{position:relative;}
.aside-sticky{position:sticky; top:96px; display:flex; flex-direction:column; gap:20px;}
.side-card{background:var(--bg-2); border:1px solid var(--line-soft); border-radius:var(--r-card); padding:20px; box-shadow:var(--sh-card);}
.side-card h4{font-size:14px; font-weight:700; display:flex; align-items:center; gap:8px; margin-bottom:14px;}
.side-card h4 i{color:var(--brand);}
.toc{display:flex; flex-direction:column; gap:2px; border-left:1px solid var(--line);}
.toc a{padding:7px 12px; font-size:13.5px; color:var(--t-2); border-left:2px solid transparent; margin-left:-1px; line-height:1.5;}
.toc a:hover{color:var(--t-1);}
.toc a.is-current{color:var(--brand); border-left-color:var(--brand); background:rgba(23,224,164,.07);}
.aside-list{display:flex; flex-direction:column; gap:14px;}
.aside-item{display:flex; gap:12px; align-items:flex-start;}
.aside-item .thumb{width:74px; height:52px; flex:0 0 74px; border-radius:10px; overflow:hidden; background:var(--bg-1);}
.aside-item .thumb img{width:100%; height:100%; object-fit:cover; transition:transform var(--ease);}
.aside-item:hover .thumb img{transform:scale(1.06);}
.aside-item h5{margin:0; font-size:13.5px; font-weight:600; line-height:1.5; color:var(--t-1); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}
.aside-item:hover h5{color:var(--brand);}
.aside-item .sub{font-size:12px; color:var(--t-3); margin-top:4px;}
.tags{display:flex; flex-wrap:wrap; gap:8px;}
.tag{
  font-size:12px; padding:5px 11px; border-radius:6px; border:1px solid var(--line);
  color:var(--t-2); background:rgba(255,255,255,.03);
}
.tag:hover{border-color:var(--brand); color:var(--brand);}
.tag.tag-hot{border-color:rgba(255,107,44,.5); color:#FFB08A; background:rgba(255,107,44,.10);}
.side-tip{font-size:13px; color:var(--t-2); line-height:1.75;}

/* ============ Section shared ============ */
.section{padding:var(--s6) 0;}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:20px; margin-bottom:28px; flex-wrap:wrap;}
.eyebrow{display:flex; align-items:center; gap:10px; font-size:12px; letter-spacing:.14em; color:var(--brand); text-transform:uppercase; margin-bottom:10px;}
.eyebrow::before{content:""; width:26px; height:2px; border-radius:2px; background:var(--brand);}
.section-head h2{font-size:clamp(20px,2.3vw,28px);}
.section-head .sub{font-size:14px; color:var(--t-2); margin-top:8px; max-width:620px;}

/* ============ Prev / Next ============ */
.post-nav{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
.post-nav a{
  display:flex; align-items:center; gap:14px; background:var(--bg-2); border:1px solid var(--line-soft);
  border-radius:var(--r-card); padding:20px; box-shadow:var(--sh-card);
}
.post-nav a:hover{border-color:rgba(23,224,164,.45); transform:translateY(-4px); box-shadow:var(--sh-hover);}
.post-nav .arrow{
  width:40px; height:40px; flex:0 0 40px; border-radius:50%; border:1px solid var(--line);
  display:grid; place-items:center; color:var(--brand);
}
.post-nav .label{font-size:12px; color:var(--t-3); display:block; margin-bottom:4px;}
.post-nav .txt{font-size:14.5px; font-weight:600; color:var(--t-1); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; line-height:1.55;}
.post-nav a:hover .txt{color:var(--brand);}
.post-nav a.next{justify-content:flex-end; text-align:right;}

/* ============ Cards ============ */
.card-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px;}
.card{
  background:var(--bg-2); border:1px solid var(--line-soft); border-radius:var(--r-card);
  overflow:hidden; box-shadow:var(--sh-card); display:flex; flex-direction:column;
}
.card:hover{transform:translateY(-4px); box-shadow:var(--sh-hover); border-color:rgba(23,224,164,.35);}
.card-cover{position:relative; aspect-ratio:16/9; overflow:hidden; background:var(--bg-1);}
.card-cover img{width:100%; height:100%; object-fit:cover; transition:transform var(--ease);}
.card:hover .card-cover img{transform:scale(1.04);}
.card-cover .badge{position:absolute; left:12px; top:12px;}
.badge{
  font-size:12px; padding:4px 10px; border-radius:6px; letter-spacing:.02em;
  background:rgba(10,18,22,.72); border:1px solid rgba(23,224,164,.5); color:var(--brand);
  -webkit-backdrop-filter:blur(6px); backdrop-filter:blur(6px);
}
.badge-hot{background:rgba(255,107,44,.88); border-color:transparent; color:#22100A; font-weight:600;}
.card-body{padding:18px; display:flex; flex-direction:column; gap:10px; flex:1;}
.card-body h3{font-size:16px; font-weight:600; line-height:1.5; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{font-size:13.5px; color:var(--t-2); line-height:1.7; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}
.card-meta{margin-top:auto; display:flex; align-items:center; gap:14px; font-size:12px; color:var(--t-3);}

/* ============ CTA ============ */
.cta-band{
  position:relative; overflow:hidden; border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft);
  background:var(--bg-1);
}
.cta-band::before{
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(115deg, rgba(23,224,164,.14), transparent 55%),
    repeating-linear-gradient(115deg, rgba(255,255,255,.045) 0 1px, transparent 1px 46px);
  pointer-events:none;
}
.cta-inner{position:relative; display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:center; padding:52px 0;}
.cta-inner h2{font-size:clamp(21px,2.4vw,30px); margin-bottom:10px;}
.cta-inner p{color:var(--t-2); font-size:14.5px; max-width:520px;}
.cta-form{display:flex; gap:12px; flex-wrap:wrap;}
.cta-form .field{flex:1 1 220px;}
.cta-form label{display:block; font-size:13px; color:var(--t-2); margin-bottom:8px;}
.cta-form input{
  width:100%; padding:13px 16px; border-radius:var(--r-input); background:var(--bg-2);
  border:1px solid var(--line); outline:none; font-size:14px; color:var(--t-1);
}
.cta-form input::placeholder{color:var(--t-3);}
.cta-form input:focus{border-color:var(--brand); box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.cta-form input.is-error{border-color:var(--warn);}
.cta-form input.is-ok{border-color:var(--ok);}
.cta-actions{display:flex; align-items:center; gap:14px; flex:1 1 100%;}
.form-note{font-size:12.5px; color:var(--t-3);}
.form-note.ok{color:var(--ok);}
.form-note.err{color:var(--warn);}

/* ============ FAQ ============ */
.faq-list{display:flex; flex-direction:column; gap:14px; max-width:900px;}
.faq-item{background:var(--bg-1); border:1px solid var(--line-soft); border-radius:14px; overflow:hidden;}
.faq-q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:18px 22px; background:transparent; border:0; cursor:pointer; text-align:left;
  font-size:16px; font-weight:600; color:var(--t-1); min-height:56px; position:relative;
}
.faq-q::before{content:""; position:absolute; left:0; top:14px; bottom:14px; width:3px; border-radius:2px; background:transparent;}
.faq-item.is-open .faq-q::before{background:var(--brand);}
.faq-q i{color:var(--brand); transition:transform .25s cubic-bezier(.4,0,.2,1); flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .25s cubic-bezier(.4,0,.2,1);}
.faq-a p{padding:0 22px 20px; color:var(--t-2); font-size:14.5px; line-height:1.85;}

/* ============ Footer ============ */
.site-footer{border-top:1px solid var(--line); background:var(--bg-1); margin-top:var(--s6);}
.footer-grid{display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px; padding:56px 0 40px;}
.footer-logo{display:flex; align-items:center; gap:10px; margin-bottom:16px;}
.footer-brand p{color:var(--t-2); font-size:13.5px; line-height:1.85; max-width:340px;}
.footer-col h4{font-size:14px; margin-bottom:16px; color:var(--t-1);}
.footer-col ul{display:flex; flex-direction:column; gap:10px;}
.footer-col a,.footer-col span{font-size:13.5px; color:var(--t-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line-soft); padding:22px 0 32px; display:flex; justify-content:space-between;
  gap:16px; flex-wrap:wrap; font-size:12.5px; color:var(--t-3);
}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .container,.container-narrow{padding:0 20px;}
  .main-nav{display:none;}
  .search-form{display:none;}
  .burger,.header-icon{display:grid;}
  .article-layout{grid-template-columns:minmax(0,1fr); gap:var(--s5);}
  .aside-sticky{position:static;}
  .article-body{max-width:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr; gap:28px; padding:44px 0;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr; gap:32px;}
  .section{padding:var(--s6) 0;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .container,.container-narrow{padding:0 16px;}
  .header-inner{min-height:64px; gap:12px;}
  .logo-text strong{font-size:14px;}
  .logo-mark{width:36px; height:36px; font-size:13px;}
  .article-head{padding:36px 0 24px;}
  .article-meta{gap:12px;}
  .prose{font-size:15.5px; line-height:1.9;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav a.next{justify-content:flex-start; text-align:left; flex-direction:row-reverse;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr; gap:28px; padding:40px 0 28px;}
  .cta-actions{flex-direction:column; align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .section{padding:var(--s6) 0;}
  .breadcrumb .current{max-width:48vw;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important; animation:none !important; scroll-behavior:auto !important;}
  .card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A1216;
  --bg-1:#0E1B21;
  --bg-2:#14262E;
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#17E0A4;
  --action:#FF6B2C;
  --cool:#6FE3FF;
  --t-1:#F2F7F6;
  --t-2:#9DB3B1;
  --t-3:#6B8386;
  --ok:#35D07F;
  --warn:#FF4D5E;
  --info:#6FE3FF;
  --r-card:16px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:12px;
  --sh-card:0 10px 28px rgba(0,0,0,.45);
  --sh-hover:0 18px 42px rgba(0,0,0,.55);
  --glow-brand:0 8px 26px rgba(23,224,164,.22);
  --glow-action:0 8px 26px rgba(255,107,44,.28);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --container:1280px;
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--t-1);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--brand);}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:none;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(23,224,164,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部品牌行 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(10,18,22,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--glass-line);
}
.header-bar{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#0F9C74);
  color:#06231B;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:var(--glow-brand);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--t-1);}
.logo-text span{font-size:12px;color:var(--t-2);letter-spacing:.04em;}

.main-nav{display:flex;align-items:center;gap:4px;flex:1;flex-wrap:nowrap;overflow:hidden;}
.main-nav a{
  padding:9px 13px;border-radius:var(--r-btn);
  font-size:14px;color:var(--t-2);white-space:nowrap;
  border:1px solid transparent;
}
.main-nav a:hover{color:var(--t-1);background:var(--glass);}
.main-nav a.is-active{
  color:var(--brand);
  border-color:rgba(23,224,164,.4);
  background:rgba(23,224,164,.10);
  box-shadow:0 0 0 3px rgba(23,224,164,.08);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{position:relative;display:flex;align-items:center;}
.search-box input{
  width:190px;height:42px;
  padding:0 44px 0 16px;
  background:var(--bg-2);
  border:1px solid var(--glass-line);
  border-radius:var(--r-input);
  color:var(--t-1);
  transition:border-color var(--ease),box-shadow var(--ease),width var(--ease);
}
.search-box input::placeholder{color:var(--t-3);}
.search-box input:focus{
  outline:none;
  width:220px;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(23,224,164,.18);
}
.search-box button{
  position:absolute;right:5px;top:5px;
  width:32px;height:32px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
  transition:background-color var(--ease);
}
.search-box button:hover{background:rgba(23,224,164,.14);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--action);color:#1A0B03;
  box-shadow:var(--glow-action);
}
.btn-primary:hover{background:#FF8149;color:#1A0B03;transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,107,44,.36);}
.btn-ghost{
  background:var(--glass);
  border:1px solid var(--glass-line);
  color:var(--t-1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-line{
  border:1px solid rgba(23,224,164,.45);
  color:var(--brand);
  background:transparent;
  padding:10px 20px;
  font-size:14px;
}
.btn-line:hover{background:rgba(23,224,164,.12);transform:translateY(-2px);color:var(--brand);}
.btn-sm{padding:9px 17px;font-size:14px;}

.mobile-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid var(--glass-line);
  background:var(--glass);
  color:var(--t-1);font-size:17px;
}
.search-toggle{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;border:1px solid var(--glass-line);background:var(--glass);color:var(--t-1);font-size:16px;}

/* ---------- 频道行 ---------- */
.channel-bar{
  background:var(--bg-1);
  border-bottom:1px solid var(--line-soft);
  position:relative;
}
.channel-bar::before,.channel-bar::after{
  content:"";position:absolute;top:0;bottom:0;width:48px;pointer-events:none;z-index:2;
}
.channel-bar::before{left:0;background:linear-gradient(90deg,var(--bg-1),rgba(14,27,33,0));}
.channel-bar::after{right:0;background:linear-gradient(270deg,var(--bg-1),rgba(14,27,33,0));}
.channel-scroll{
  display:flex;gap:10px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  padding:12px 24px;
  max-width:var(--container);
  margin:0 auto;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-tab{
  scroll-snap-align:start;
  flex:0 0 auto;
  padding:8px 18px;
  border-radius:var(--r-btn);
  border:1px solid var(--glass-line);
  color:var(--t-2);
  font-size:14px;
  background:transparent;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease),box-shadow var(--ease);
}
.channel-tab:hover{color:var(--t-1);border-color:rgba(23,224,164,.4);}
.channel-tab.is-active{
  color:#06231B;
  background:var(--brand);
  border-color:var(--brand);
  font-weight:600;
  box-shadow:0 0 18px rgba(23,224,164,.28);
}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,9,11,.66);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:90;
  backdrop-filter:blur(3px);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;
  background:var(--bg-1);
  border-left:1px solid var(--glass-line);
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.4,0,.2,1);
  z-index:100;
  padding:20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-line);display:flex;align-items:center;justify-content:center;color:var(--t-1);}
.drawer-title{font-size:12px;color:var(--t-3);letter-spacing:.08em;margin:18px 0 8px;}
.drawer-nav a{
  display:flex;align-items:center;
  min-height:48px;padding:0 14px;
  border-radius:12px;
  color:var(--t-2);font-size:15px;
  border-left:3px solid transparent;
}
.drawer-nav a:hover{background:var(--glass);color:var(--t-1);}
.drawer-nav a.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(23,224,164,.08);}
.drawer-search{display:flex;gap:8px;margin-top:18px;}
.drawer-search input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--glass-line);color:var(--t-1);
}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.drawer .btn{width:100%;margin-top:16px;}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:96px 0 72px;
  background-color:var(--bg-1);
  background-image:linear-gradient(90deg,rgba(10,18,22,.94) 0%,rgba(10,18,22,.72) 46%,rgba(10,18,22,.42) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:140px;
  background:linear-gradient(180deg,rgba(10,18,22,0),var(--bg-0));
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:22px;}
.crumb a{color:var(--t-2);}
.crumb a:hover{color:var(--brand);}
.crumb span{color:var(--t-3);}
.crumb .current{color:var(--t-3);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--r-btn);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  font-size:12px;letter-spacing:.04em;color:var(--brand);
  margin-bottom:20px;
}
.hero-badge i{font-size:12px;}
.page-hero h1{
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:20em;
}
.page-hero .hero-sub{
  margin-top:16px;
  font-size:clamp(15px,1.5vw,17px);
  color:var(--t-2);
  max-width:34em;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
  margin-top:40px;
  max-width:900px;
}
.stat{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  padding:18px 20px;
  backdrop-filter:blur(14px);
}
.stat strong{
  display:block;
  font-size:26px;font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--t-2);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.alt{background:var(--bg-1);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:48px;
}
.sec-label{
  display:flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;
  color:var(--t-3);text-transform:uppercase;
  margin-bottom:12px;
}
.sec-label::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.sec-title{
  font-size:clamp(22px,2.6vw,34px);
  line-height:1.25;font-weight:700;
  letter-spacing:-.01em;
}
.sec-sub{margin-top:12px;color:var(--t-2);font-size:15px;max-width:46em;}
.more-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--brand);white-space:nowrap;
}
.more-link i{transition:transform var(--ease);}
.more-link:hover i{transform:translateX(4px);}

/* ---------- 时间线 ---------- */
.timeline-wrap{position:relative;}
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:26px;width:2px;
  background:linear-gradient(180deg,rgba(23,224,164,.85),rgba(23,224,164,.16) 62%,rgba(23,224,164,0));
}
.tl-item{position:relative;margin-bottom:32px;}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;left:-34px;top:26px;
  width:16px;height:16px;border-radius:50%;
  background:var(--bg-0);
  border:2px solid var(--t-3);
  z-index:2;
  transition:border-color var(--ease),background-color var(--ease),box-shadow var(--ease);
}
.tl-item.is-active .tl-node{
  border-color:var(--brand);
  background:var(--brand);
  box-shadow:0 0 0 6px rgba(23,224,164,.14);
}
.tl-card{
  display:grid;
  grid-template-columns:340px minmax(0,1fr);
  background:var(--bg-2);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(23,224,164,.26);}
.tl-cover{position:relative;overflow:hidden;min-height:230px;background:var(--bg-1);}
.tl-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.tl-card:hover .tl-cover img{transform:scale(1.04);}
.tl-stage{
  position:absolute;left:14px;top:14px;
  padding:5px 12px;border-radius:6px;
  font-size:12px;letter-spacing:.02em;font-weight:600;
  background:rgba(10,18,22,.76);
  border:1px solid rgba(23,224,164,.45);
  color:var(--brand);
  backdrop-filter:blur(6px);
}
.tl-body{padding:28px 30px;display:flex;flex-direction:column;}
.tl-time{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--t-3);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.tl-time i{color:var(--brand);font-size:11px;}
.tl-body h3{font-size:clamp(18px,2vw,22px);line-height:1.35;font-weight:600;margin-bottom:12px;}
.tl-item:hover .tl-body h3{color:var(--brand);}
.tl-body p{color:var(--t-2);font-size:15px;line-height:1.85;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:20px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:6px;
  border:1px solid var(--glass-line);
  font-size:12px;letter-spacing:.02em;color:var(--t-2);
}
.tag.brand{border-color:rgba(23,224,164,.45);color:var(--brand);}
.tag.hot{border-color:rgba(255,107,44,.5);color:var(--action);}

/* ---------- 阶段速览 ---------- */
.facts-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.fact-card{
  background:var(--bg-2);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  position:relative;
  overflow:hidden;
}
.fact-card::before{
  content:"";position:absolute;left:0;top:0;width:3px;height:100%;
  background:linear-gradient(180deg,var(--brand),rgba(23,224,164,0));
  opacity:0;transition:opacity var(--ease);
}
.fact-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(23,224,164,.24);}
.fact-card:hover::before{opacity:1;}
.fact-icon{
  width:46px;height:46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,224,164,.12);
  color:var(--brand);font-size:18px;
  margin-bottom:18px;
}
.fact-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.fact-card p{color:var(--t-2);font-size:15px;}
.fact-num{
  margin-top:18px;font-size:13px;color:var(--t-3);
  font-variant-numeric:tabular-nums;
  display:flex;align-items:center;gap:8px;
}
.fact-num b{color:var(--brand);font-size:15px;font-weight:700;}

/* ---------- 口碑 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.voice-card{
  background:var(--bg-2);
  border:1px solid var(--line-soft);
  border-left:3px solid rgba(23,224,164,.5);
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--sh-card);
}
.voice-card p{color:var(--t-1);font-size:15.5px;line-height:1.9;}
.voice-meta{display:flex;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--t-3);}
.voice-avatar{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,224,164,.14);color:var(--brand);font-size:13px;font-weight:700;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:960px;}
.faq-item{
  background:var(--bg-1);
  border:1px solid var(--line-soft);
  border-radius:14px;
  overflow:hidden;
  transition:border-color var(--ease);
}
.faq-item.is-open{border-color:rgba(23,224,164,.32);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:18px;font-weight:600;
  color:var(--t-1);
  position:relative;
  transition:color var(--ease),background-color var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--brand);opacity:0;transition:opacity var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q:hover{background:var(--glass);color:var(--brand);}
.faq-q i{color:var(--brand);font-size:15px;transition:transform var(--ease);flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s cubic-bezier(.4,0,.2,1);
}
.faq-a p{
  padding:0 24px 22px 24px;
  color:var(--t-2);font-size:15px;line-height:1.9;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--bg-1);
  border:1px solid var(--glass-line);
  border-radius:22px;
  padding:52px;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-60px;width:520px;height:420px;
  background:radial-gradient(circle at center,rgba(23,224,164,.20),rgba(23,224,164,0) 68%);
}
.cta-band::after{
  content:"";position:absolute;left:-40px;bottom:-80px;width:360px;height:280px;
  background:repeating-linear-gradient(115deg,rgba(23,224,164,.10) 0 2px,rgba(23,224,164,0) 2px 16px);
  transform:rotate(-6deg);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;}
.cta-inner .cta-sub{margin-top:14px;color:var(--t-2);font-size:15px;max-width:30em;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;color:var(--t-2);}
.field-input{
  display:flex;gap:10px;
}
.field input{
  flex:1;
  height:50px;
  padding:0 18px;
  background:var(--bg-2);
  border:1px solid var(--glass-line);
  border-radius:var(--r-input);
  color:var(--t-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input::placeholder{color:var(--t-3);}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.field input.is-error{border-color:var(--warn);box-shadow:0 0 0 3px rgba(255,77,94,.16);}
.field input.is-ok{border-color:var(--ok);}
.form-msg{font-size:13px;min-height:20px;color:var(--t-3);}
.form-msg.error{color:var(--warn);}
.form-msg.ok{color:var(--ok);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--glass-line);
  background:var(--bg-1);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand p{color:var(--t-2);font-size:14px;line-height:1.9;max-width:34em;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--t-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--t-3);flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .main-nav a{padding:9px 10px;font-size:13.5px;}
  .search-box input{width:150px;}
  .search-box input:focus{width:170px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-actions .btn-primary{display:none;}
  .mobile-toggle{display:flex;}
  .search-toggle{display:flex;}
  .header-bar{gap:12px;min-height:66px;}
  .brand{margin-right:auto;}
  .section{padding:64px 0;}
  .page-hero{padding:72px 0 56px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .tl-card{grid-template-columns:280px minmax(0,1fr);}
  .facts-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:40px 32px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .channel-scroll{padding:10px 16px;}
  .section{padding:48px 0;}
  .page-hero{padding:56px 0 48px;}
  .page-hero h1{font-size:28px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:10px;margin-top:28px;}
  .stat{padding:14px 16px;}
  .stat strong{font-size:22px;}
  .sec-head{flex-direction:column;align-items:flex-start;margin-bottom:32px;}
  .timeline{padding-left:26px;}
  .timeline::before{left:5px;}
  .tl-node{left:-26px;top:20px;width:14px;height:14px;}
  .tl-card{grid-template-columns:1fr;}
  .tl-cover{min-height:0;aspect-ratio:16/9;}
  .tl-body{padding:22px 20px;}
  .tl-item{margin-bottom:26px;}
  .facts-grid{grid-template-columns:1fr;}
  .voice-grid{grid-template-columns:1fr;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{padding:0 18px 18px 18px;}
  .cta-band{padding:30px 20px;border-radius:18px;}
  .field-input{flex-direction:column;}
  .field input{height:48px;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A1216; --bg-1:#0E1B21; --bg-2:#14262E;
  --glass:rgba(255,255,255,.06); --glass-line:rgba(255,255,255,.10);
  --brand:#17E0A4; --action:#FF6B2C; --cool:#6FE3FF;
  --t-1:#F2F7F6; --t-2:#9DB3B1; --t-3:#6B8386;
  --ok:#35D07F; --warn:#FF4D5E;
  --line:rgba(255,255,255,.08);
  --r-card:16px; --r-img:14px; --r-btn:999px; --r-input:12px;
  --shadow-card:0 10px 28px rgba(0,0,0,.45);
  --shadow-hover:0 18px 42px rgba(0,0,0,.55);
  --glow-brand:0 8px 26px rgba(23,224,164,.22);
  --glow-action:0 8px 26px rgba(255,107,44,.28);
  --t:.22s cubic-bezier(.4,0,.2,1);
  --s1:8px; --s2:12px; --s3:16px; --s4:24px; --s5:32px; --s6:48px; --s7:64px; --s8:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--bg-0); color:var(--t-1);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px; line-height:1.85; font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block; border:0;}
a{color:var(--t-1); text-decoration:none; transition:color var(--t),border-color var(--t),background-color var(--t),box-shadow var(--t),transform var(--t);}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0; font-weight:700; line-height:1.25; letter-spacing:.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0; padding:0; list-style:none;}
:focus-visible{outline:2px solid var(--brand); outline-offset:3px; border-radius:4px;}
.container{width:100%; max-width:1280px; margin:0 auto; padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{position:relative; z-index:60;}
.header-top{position:sticky; top:0; z-index:70; background:rgba(10,18,22,.82); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); border-bottom:1px solid var(--line);}
.header-top-inner{display:flex; align-items:center; gap:var(--s4); min-height:72px;}
.brand{display:flex; align-items:center; gap:10px; flex:0 0 auto;}
.logo-mark{
  width:40px; height:40px; border-radius:12px; display:grid; place-items:center;
  background:linear-gradient(140deg,var(--brand),#0E9E78); color:#04211A;
  font-weight:800; font-size:15px; letter-spacing:.02em; box-shadow:var(--glow-brand);
}
.logo-text{display:flex; flex-direction:column; line-height:1.2;}
.logo-text strong{font-size:16px; font-weight:700; color:var(--t-1);}
.logo-text span{font-size:12px; color:var(--t-2); letter-spacing:.02em;}
.main-nav{display:flex; align-items:center; gap:4px; flex:1 1 auto; flex-wrap:wrap;}
.main-nav a{
  display:inline-flex; align-items:center; height:38px; padding:0 12px; border-radius:var(--r-btn);
  font-size:14px; color:var(--t-2); border:1px solid transparent;
}
.main-nav a:hover{color:var(--t-1); background:var(--glass); border-color:var(--glass-line);}
.main-nav a.is-active{color:var(--brand); border-color:rgba(23,224,164,.42); background:rgba(23,224,164,.08);}
.header-actions{display:flex; align-items:center; gap:var(--s2); flex:0 0 auto;}
.search-box{display:flex; align-items:center; background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r-input); overflow:hidden; transition:border-color var(--t),box-shadow var(--t);}
.search-box:focus-within{border-color:var(--brand); box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.search-box input{width:150px; background:transparent; border:0; color:var(--t-1); padding:9px 12px; font-size:14px; outline:none;}
.search-box input::placeholder{color:var(--t-3);}
.search-box button{background:transparent; border:0; color:var(--brand); padding:9px 12px; cursor:pointer; font-size:15px;}
.nav-toggle{display:none; width:44px; height:44px; border-radius:12px; border:1px solid var(--glass-line); background:var(--glass); color:var(--t-1); cursor:pointer; font-size:18px;}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--r-btn); border:1px solid transparent;
  font-size:15px; font-weight:600; cursor:pointer; white-space:nowrap;
}
.btn-primary{background:var(--action); color:#20100A; box-shadow:var(--glow-action);}
.btn-primary:hover{background:#FF7F47; color:#20100A; transform:translateY(-2px); box-shadow:0 12px 32px rgba(255,107,44,.38);}
.btn-ghost{background:var(--glass); border-color:var(--glass-line); color:var(--t-1); backdrop-filter:blur(14px);}
.btn-ghost:hover{border-color:var(--brand); color:var(--brand); transform:translateY(-2px);}
.btn:disabled{opacity:.45; cursor:not-allowed; transform:none;}

/* ---------- Channel bar ---------- */
.channel-bar{border-bottom:1px solid var(--line); background:var(--bg-1);}
.channel-scroll{
  display:flex; gap:10px; align-items:center; padding-top:12px; padding-bottom:12px;
  overflow-x:auto; scroll-snap-type:x proximity; -ms-overflow-style:none; scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-pill{
  flex:0 0 auto; scroll-snap-align:start; display:inline-flex; align-items:center;
  height:38px; padding:0 16px; border-radius:var(--r-btn); font-size:14px; color:var(--t-2);
  border:1px solid var(--glass-line); background:transparent;
}
.channel-pill:hover{color:var(--t-1); border-color:rgba(23,224,164,.4);}
.channel-pill.is-current{
  color:#04211A; background:var(--brand); border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(23,224,164,.14), var(--glow-brand); font-weight:600;
}

/* ---------- Drawer ---------- */
.drawer-mask{position:fixed; inset:0; background:rgba(4,9,12,.6); opacity:0; pointer-events:none; transition:opacity var(--t); z-index:80;}
.drawer{position:fixed; top:0; right:0; width:min(330px,86vw); height:100%; background:var(--bg-1); border-left:1px solid var(--line); transform:translateX(102%); transition:transform var(--t); z-index:90; padding:20px 18px; overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer-mask.is-open{opacity:1; pointer-events:auto;}
.drawer h3{font-size:13px; color:var(--t-3); letter-spacing:.08em; margin:18px 0 10px;}
.drawer a.d-item{display:flex; align-items:center; height:48px; padding:0 12px; border-radius:10px; color:var(--t-2); font-size:15px;}
.drawer a.d-item:hover{background:var(--bg-2); color:var(--t-1);}
.drawer a.d-item.is-active{color:var(--brand); border-left:3px solid var(--brand); background:rgba(23,224,164,.07);}
.drawer .search-box{margin-top:8px;}
.drawer .search-box input{width:100%;}
.drawer-close{position:absolute; top:14px; right:14px; width:40px; height:40px; border-radius:10px; background:var(--glass); border:1px solid var(--glass-line); color:var(--t-1); cursor:pointer;}

/* ---------- Page head ---------- */
.page-head{position:relative; padding:56px 0 40px; background:var(--bg-1); border-bottom:1px solid var(--line); overflow:hidden;}
.page-head::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(760px 320px at 8% -10%, rgba(23,224,164,.16), transparent 62%),
    radial-gradient(620px 300px at 92% 110%, rgba(111,227,255,.08), transparent 60%);
}
.page-head .container{position:relative; z-index:1;}
.breadcrumb{display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--t-3); margin-bottom:18px;}
.breadcrumb a{color:var(--t-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:var(--t-3);}
.page-head h1{font-size:clamp(28px,4.2vw,48px); font-weight:800; line-height:1.18; max-width:900px; margin-bottom:14px;}
.page-head h1 em{font-style:normal; color:var(--brand);}
.page-sub{font-size:16px; color:var(--t-2); max-width:720px; margin-bottom:26px;}
.stat-strip{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px;}
.stat-card{
  background:var(--glass); border:1px solid var(--glass-line); border-radius:var(--r-card);
  padding:16px 18px; backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
}
.stat-card b{display:block; font-size:26px; font-weight:800; color:var(--t-1); font-variant-numeric:tabular-nums; line-height:1.2;}
.stat-card span{font-size:13px; color:var(--t-2);}

/* ---------- Sections ---------- */
.section{padding:var(--s8) 0;}
.section.tight{padding:var(--s7) 0;}
.section.alt{background:var(--bg-1); 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:var(--s4); margin-bottom:var(--s5); flex-wrap:wrap;}
.eyebrow{display:inline-flex; align-items:center; gap:10px; font-size:12px; letter-spacing:.14em; color:var(--brand); text-transform:uppercase; margin-bottom:10px;}
.eyebrow::before{content:""; width:26px; height:2px; background:var(--brand); border-radius:2px;}
.sec-head h2{font-size:clamp(22px,2.6vw,34px); font-weight:700;}
.sec-head .sec-note{font-size:14px; color:var(--t-2); margin-top:8px; max-width:640px;}
.more-link{display:inline-flex; align-items:center; gap:6px; font-size:14px; color:var(--t-2);}
.more-link .arw{transition:transform var(--t);}
.more-link:hover{color:var(--brand);}
.more-link:hover .arw{transform:translateX(4px);}

/* ---------- Filter pills ---------- */
.filter-bar{
  display:flex; align-items:center; gap:12px; flex-wrap:wrap;
  background:var(--bg-1); border:1px solid var(--line); border-radius:var(--r-card);
  padding:14px 16px; margin-bottom:var(--s5);
}
.filter-group{display:flex; align-items:center; gap:8px; flex-wrap:wrap;}
.filter-label{font-size:12px; color:var(--t-3); letter-spacing:.06em; margin-right:2px;}
.pill{
  display:inline-flex; align-items:center; height:34px; padding:0 14px; border-radius:var(--r-btn);
  border:1px solid var(--glass-line); background:transparent; color:var(--t-2);
  font-size:13px; cursor:pointer; transition:all var(--t);
}
.pill:hover{color:var(--t-1); border-color:rgba(23,224,164,.45);}
.pill.is-on{background:rgba(23,224,164,.12); border-color:rgba(23,224,164,.55); color:var(--brand); font-weight:600;}
.pill.hot.is-on{background:rgba(255,107,44,.14); border-color:rgba(255,107,44,.5); color:var(--action);}

/* ---------- Compact list ---------- */
.list-rows{border:1px solid var(--line); border-radius:var(--r-card); background:var(--bg-0); overflow:hidden;}
.row-item{
  display:grid; grid-template-columns:160px 1fr 44px; gap:20px; align-items:center;
  padding:18px 20px; border-bottom:1px solid var(--line);
  transition:background-color var(--t);
}
.row-item:last-child{border-bottom:0;}
.row-item:hover{background:var(--bg-2);}
.row-thumb{width:160px; height:100px; border-radius:var(--r-img); overflow:hidden; background:var(--bg-2); flex:0 0 auto;}
.row-thumb img{width:100%; height:100%; object-fit:cover; transition:transform var(--t);}
.row-item:hover .row-thumb img{transform:scale(1.04);}
.row-body{min-width:0;}
.row-meta{display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:8px; font-size:12px; color:var(--t-3);}
.tag{display:inline-flex; align-items:center; height:22px; padding:0 9px; border-radius:6px; border:1px solid var(--glass-line); font-size:12px; color:var(--t-2); letter-spacing:.02em;}
.tag-brand{color:var(--brand); border-color:rgba(23,224,164,.42); background:rgba(23,224,164,.08);}
.tag-hot{color:var(--action); border-color:rgba(255,107,44,.45); background:rgba(255,107,44,.1);}
.row-title{font-size:18px; font-weight:600; line-height:1.4; margin-bottom:6px;}
.row-item:hover .row-title{color:var(--brand);}
.row-desc{font-size:14px; color:var(--t-2); line-height:1.7; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; margin:0;}
.row-go{width:44px; height:44px; border-radius:var(--r-btn); border:1px solid var(--glass-line); display:grid; place-items:center; color:var(--t-2); transition:all var(--t);}
.row-item:hover .row-go{border-color:var(--brand); color:var(--brand); transform:translateX(4px);}

/* ---------- Highlight cards ---------- */
.card-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:var(--s4);}
.card{
  background:var(--bg-2); border:1px solid var(--glass-line); border-radius:var(--r-card);
  box-shadow:var(--shadow-card); overflow:hidden; display:flex; flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-4px); box-shadow:var(--shadow-hover);}
.card-cover{aspect-ratio:16/9; overflow:hidden; background:var(--bg-1);}
.card-cover img{width:100%; height:100%; object-fit:cover; transition:transform var(--t);}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:18px; display:flex; flex-direction:column; gap:8px; flex:1;}
.card-body h3{font-size:17px; font-weight:600; line-height:1.45; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{font-size:14px; color:var(--t-2); margin:0; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}
.card-foot{margin-top:auto; display:flex; align-items:center; justify-content:space-between; font-size:12px; color:var(--t-3);}

/* ---------- Notice / evidence ---------- */
.split{display:grid; grid-template-columns:1.05fr .95fr; gap:var(--s6); align-items:center;}
.split-media{border-radius:var(--r-card); overflow:hidden; border:1px solid var(--glass-line); box-shadow:var(--shadow-card);}
.split-media img{width:100%; aspect-ratio:16/10; object-fit:cover;}
.check-list li{display:flex; gap:12px; padding:12px 0; border-bottom:1px dashed var(--line); color:var(--t-2); font-size:15px;}
.check-list li:last-child{border-bottom:0;}
.check-list .dot{flex:0 0 auto; width:22px; height:22px; border-radius:50%; background:rgba(23,224,164,.12); border:1px solid rgba(23,224,164,.4); color:var(--brand); display:grid; place-items:center; font-size:12px; margin-top:3px;}
.check-list strong{color:var(--t-1); font-weight:600;}

/* ---------- FAQ ---------- */
.faq-list{display:grid; gap:12px;}
.faq-item{background:var(--bg-1); border:1px solid var(--line); border-radius:14px; overflow:hidden; transition:border-color var(--t);}
.faq-item[open]{border-color:rgba(23,224,164,.42);}
.faq-item summary{
  list-style:none; cursor:pointer; padding:18px 20px; font-size:18px; font-weight:600;
  display:flex; align-items:center; justify-content:space-between; gap:16px; position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:""; position:absolute; left:0; top:12px; bottom:12px; width:3px; background:var(--brand); border-radius:0 3px 3px 0; opacity:0; transition:opacity var(--t);}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{content:"+"; font-size:22px; color:var(--brand); transition:transform .25s cubic-bezier(.4,0,.2,1); line-height:1;}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-answer{padding:0 20px 20px 20px; font-size:15px; color:var(--t-2); margin:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative; border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:var(--bg-1); overflow:hidden; padding:var(--s7) 0;
}
.cta-band::before{
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(115deg, rgba(23,224,164,.14) 0%, rgba(23,224,164,0) 42%),
    repeating-linear-gradient(115deg, rgba(255,255,255,.035) 0 1px, transparent 1px 46px);
  pointer-events:none;
}
.cta-inner{position:relative; z-index:1; display:grid; grid-template-columns:1fr 1fr; gap:var(--s6); align-items:center;}
.cta-inner h2{font-size:clamp(22px,2.8vw,34px); margin-bottom:12px;}
.cta-inner p{color:var(--t-2); margin:0;}
.cta-form{display:flex; gap:12px; flex-wrap:wrap;}
.field{flex:1 1 220px; min-width:0;}
.field label{display:block; font-size:13px; color:var(--t-2); margin-bottom:6px;}
.field input{
  width:100%; height:48px; padding:0 14px; border-radius:var(--r-input);
  background:var(--bg-2); border:1px solid var(--line); color:var(--t-1); font-size:15px;
  transition:border-color var(--t),box-shadow var(--t);
}
.field input::placeholder{color:var(--t-3);}
.field input:focus{outline:none; border-color:var(--brand); box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.field input.is-error{border-color:var(--warn);}
.form-msg{font-size:13px; margin-top:10px; color:var(--t-3); width:100%;}
.form-msg.ok{color:var(--ok);}
.form-msg.err{color:var(--warn);}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line); background:var(--bg-0); padding:var(--s7) 0 0;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:var(--s5);}
.footer-logo{display:flex; align-items:center; gap:10px; margin-bottom:16px;}
.footer-brand p{font-size:14px; color:var(--t-2); max-width:360px;}
.footer-col h4{font-size:15px; margin-bottom:16px; color:var(--t-1);}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px; color:var(--t-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:var(--s6); border-top:1px solid var(--line); padding:22px 0 30px;
  display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap;
}
.footer-bottom p{font-size:13px; color:var(--t-3); margin:0;}

@media (max-width:1024px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section.tight{padding:56px 0;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex; align-items:center; justify-content:center;}
  .search-box{display:none;}
  .header-actions .btn-primary{display:none;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr; gap:var(--s5);}
  .cta-inner{grid-template-columns:1fr; gap:var(--s5);}
  .footer-grid{grid-template-columns:1fr 1fr; gap:var(--s5);}
}
@media (max-width:640px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section.tight{padding:48px 0;}
  .header-top-inner{min-height:62px; gap:12px;}
  .logo-text strong{font-size:15px;}
  .logo-text span{font-size:11px;}
  .page-head{padding:36px 0 28px;}
  .stat-strip{grid-template-columns:1fr 1fr; gap:10px;}
  .stat-card{padding:12px 14px;}
  .stat-card b{font-size:22px;}
  .row-item{grid-template-columns:110px 1fr; gap:12px; padding:14px;}
  .row-thumb{width:110px; height:76px;}
  .row-go{display:none;}
  .row-title{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .filter-bar{padding:12px;}
  .faq-item summary{font-size:16px; padding:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important; animation:none !important;}
}

/* roulang page: category3 */
:root{
  --bg-0:#0A1216;
  --bg-1:#0E1B21;
  --bg-2:#14262E;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#17E0A4;
  --action:#FF6B2C;
  --cool:#6FE3FF;
  --t-1:#F2F7F6;
  --t-2:#9DB3B1;
  --t-3:#6B8386;
  --ok:#35D07F;
  --warn:#FF4D5E;
  --r-card:16px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:12px;
  --sh-card:0 10px 28px rgba(0,0,0,.45);
  --sh-card-h:0 18px 42px rgba(0,0,0,.55);
  --sh-action:0 8px 26px rgba(255,107,44,.28);
  --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--t-1);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.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;}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,18,22,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-top{
  display:flex;align-items:center;gap:20px;
  min-height:74px;padding:10px 0;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(140deg,var(--brand),#0B8F6B);
  color:#04120E;font-weight:800;font-size:15px;letter-spacing:.02em;
  display:grid;place-items:center;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:16px;font-weight:700;letter-spacing:.01em;}
.logo-text span{font-size:12px;color:var(--t-2);}
.main-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;}
.main-nav a{
  padding:8px 12px;border-radius:10px;font-size:14px;color:var(--t-2);
  white-space:nowrap;font-weight:500;
}
.main-nav a:hover{color:var(--t-1);background:var(--glass);}
.main-nav a.is-active{color:var(--brand);background:rgba(23,224,164,.10);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:4px 4px 4px 16px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.search-box input{
  background:transparent;border:0;outline:none;width:150px;
  font-size:13px;color:var(--t-1);
}
.search-box input::placeholder{color:var(--t-3);}
.search-box button{
  width:32px;height:32px;border:0;border-radius:50%;
  background:rgba(23,224,164,.16);color:var(--brand);
  display:grid;place-items:center;cursor:pointer;transition:background var(--ease);
}
.search-box button:hover{background:rgba(23,224,164,.28);}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);color:var(--t-1);
  cursor:pointer;place-items:center;
}
.channel-bar{border-top:1px solid var(--line-soft);position:relative;}
.channel-bar::before,.channel-bar::after{
  content:"";position:absolute;top:0;bottom:0;width:48px;pointer-events:none;z-index:2;
}
.channel-bar::before{left:0;background:linear-gradient(90deg,var(--bg-0),rgba(10,18,22,0));}
.channel-bar::after{right:0;background:linear-gradient(270deg,var(--bg-0),rgba(10,18,22,0));}
.channel-tabs{
  display:flex;gap:10px;padding:12px 24px;
  max-width:1280px;margin:0 auto;
  overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 18px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:transparent;
  color:var(--t-2);font-size:13.5px;white-space:nowrap;font-weight:500;
  transition:all var(--ease);min-height:38px;display:inline-flex;align-items:center;
}
.tab:hover{color:var(--t-1);border-color:rgba(23,224,164,.5);}
.tab.is-active{
  color:#04120E;background:var(--brand);border-color:var(--brand);
  box-shadow:0 0 18px rgba(23,224,164,.28);font-weight:700;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;min-height:46px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  text-align:center;line-height:1.2;
}
.btn-primary{background:var(--action);color:#1A0A02;box-shadow:var(--sh-action);}
.btn-primary:hover{background:#FF8149;color:#1A0A02;transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,107,44,.4);}
.btn-ghost{
  background:var(--glass);border-color:var(--line);color:var(--t-1);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--t-1);transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;}
.link-arrow span{transition:transform var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;font-size:12px;letter-spacing:.02em;
  border:1px solid var(--line);color:var(--t-2);background:rgba(10,18,22,.6);
  line-height:1.4;
}
.badge-brand{color:var(--brand);border-color:rgba(23,224,164,.45);background:rgba(23,224,164,.12);}
.badge-action{color:var(--action);border-color:rgba(255,107,44,.5);background:rgba(255,107,44,.14);}
.badge-cool{color:var(--cool);border-color:rgba(111,227,255,.4);background:rgba(111,227,255,.1);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.42) saturate(1.05);}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(10,18,22,.72) 0%,rgba(10,18,22,.35) 40%,rgba(10,18,22,.96) 100%),
    radial-gradient(900px 420px at 12% 78%,rgba(23,224,164,.16),rgba(10,18,22,0) 70%);
}
.hero-inner{position:relative;z-index:3;padding:96px 24px 120px;max-width:1280px;margin:0 auto;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  font-size:12.5px;color:var(--brand);letter-spacing:.02em;margin-bottom:22px;
}
.hero-title{
  font-size:clamp(30px,4.6vw,54px);line-height:1.15;font-weight:800;
  max-width:900px;letter-spacing:-.01em;
}
.hero-sub{
  margin-top:18px;font-size:clamp(15px,1.4vw,18px);color:var(--t-2);max-width:620px;
}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}

/* ============ 数据条 ============ */
.stat-wrap{position:relative;z-index:5;margin-top:-64px;}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--sh-card);
}
.stat-item{
  padding:24px 22px;background:rgba(10,18,22,.55);
  display:flex;flex-direction:column;gap:4px;
}
.stat-item strong{
  font-size:clamp(24px,2.6vw,34px);font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-item span{font-size:13px;color:var(--t-2);}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin-bottom:44px;}
.sec-label{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--brand);letter-spacing:.08em;margin-bottom:14px;
}
.sec-label::before{content:"";width:26px;height:2px;background:var(--brand);border-radius:2px;}
.sec-title{font-size:clamp(22px,2.6vw,34px);line-height:1.25;font-weight:700;}
.sec-sub{margin-top:14px;color:var(--t-2);font-size:15.5px;}
.section-foot{margin-top:40px;display:flex;justify-content:flex-start;}

/* ============ 卡片墙 ============ */
.wall-grid{margin:0 -14px;}
.wall-cell{width:100%;padding:0 14px;margin-bottom:28px;}
.wall-card{
  position:relative;height:100%;
  background:var(--bg-2);border:1px solid var(--line-soft);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.wall-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-h);border-color:rgba(23,224,164,.28);}
.wall-card a{display:block;height:100%;}
.wall-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-1);}
.wall-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.wall-card:hover .wall-media img{transform:scale(1.04);}
.wall-media .badge{position:absolute;left:12px;top:12px;}
.wall-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,rgba(10,18,22,0),rgba(10,18,22,.72));
  pointer-events:none;
}
.wall-body{padding:18px 20px 22px;}
.card-title{font-size:18px;font-weight:600;line-height:1.4;transition:color var(--ease);}
.wall-card:hover .card-title{color:var(--brand);}
.card-desc{margin-top:10px;font-size:14px;color:var(--t-2);line-height:1.75;}
.card-meta{
  margin-top:16px;display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--t-3);font-variant-numeric:tabular-nums;
}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--t-3);}

/* 通栏强调卡 */
.wide-card{
  display:grid;grid-template-columns:5fr 7fr;
  background:linear-gradient(120deg,var(--bg-2),#0F2028 60%,rgba(23,224,164,.10));
  border:1px solid rgba(23,224,164,.28);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease);
}
.wide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-h);}
.wide-media{position:relative;min-height:260px;overflow:hidden;}
.wide-media img{width:100%;height:100%;object-fit:cover;}
.wide-body{padding:36px 38px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.wide-body h3{font-size:clamp(20px,2.2vw,27px);font-weight:700;line-height:1.35;}
.wide-body p{color:var(--t-2);font-size:15px;}
.wide-body .link-arrow{margin-top:6px;}

/* ============ 判断维度（左图右列） ============ */
.method-row{margin:0 -14px;align-items:stretch;}
.method-cell{padding:0 14px;}
.method-media{position:relative;border-radius:var(--r-card);overflow:hidden;min-height:340px;box-shadow:var(--sh-card);}
.method-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.82);}
.method-media figcaption{
  position:absolute;left:20px;right:20px;bottom:20px;
  padding:14px 16px;border-radius:12px;
  background:rgba(10,18,22,.72);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  font-size:13px;color:var(--t-2);
}
.dim-list{display:flex;flex-direction:column;gap:14px;height:100%;}
.dim-item{
  display:flex;gap:18px;padding:22px 24px;
  background:var(--bg-2);border:1px solid var(--line-soft);
  border-radius:var(--r-card);transition:border-color var(--ease),transform var(--ease);
}
.dim-item:hover{border-color:rgba(23,224,164,.32);transform:translateX(4px);}
.dim-idx{
  flex:0 0 auto;font-size:20px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.4;min-width:38px;
}
.dim-item h3{font-size:16.5px;font-weight:600;margin-bottom:6px;}
.dim-item p{font-size:14px;color:var(--t-2);line-height:1.75;}

/* ============ 使用建议（错落两列） ============ */
.tip-grid{margin:0 -14px;}
.tip-cell{padding:0 14px;margin-bottom:28px;}
.tip-cell:nth-child(even){transform:translateY(28px);}
.tip-card{
  height:100%;padding:30px 30px 32px;
  background:var(--bg-0);border:1px solid var(--line-soft);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.section-alt .tip-card{background:var(--bg-0);}
.tip-card:hover{transform:translateY(-4px);border-color:rgba(23,224,164,.32);box-shadow:var(--sh-card-h);}
.tip-card h3{font-size:18px;font-weight:600;margin:16px 0 10px;}
.tip-card p{font-size:14.5px;color:var(--t-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:var(--bg-1);border:1px solid var(--line-soft);
  border-radius:14px;overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(23,224,164,.28);}
.faq-item[open]{border-color:rgba(23,224,164,.4);background:var(--bg-2);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px 20px 26px;font-size:17px;font-weight:600;
  cursor:pointer;list-style:none;position:relative;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::after{
  content:"+";flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:18px;font-weight:600;
  color:var(--brand);border:1px solid rgba(23,224,164,.4);
  transition:transform .25s var(--ease),background var(--ease);
}
.faq-item[open] .faq-q::after{content:"−";transform:rotate(180deg);background:rgba(23,224,164,.16);}
.faq-item[open] .faq-q{box-shadow:inset 3px 0 0 var(--brand);}
.faq-a{padding:0 26px 24px 26px;color:var(--t-2);font-size:14.5px;line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(115deg,rgba(23,224,164,.14) 0%,rgba(23,224,164,0) 45%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,rgba(255,255,255,0) 1px 68px);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta-text h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;}
.cta-text p{margin-top:12px;color:var(--t-2);font-size:15px;}
.cta-form{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:start;}
.cta-form input{
  width:100%;padding:14px 18px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--line);color:var(--t-1);
  font-size:15px;min-height:48px;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form input::placeholder{color:var(--t-3);}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.cta-form input.is-error{border-color:var(--warn);box-shadow:0 0 0 3px rgba(255,77,94,.16);}
.cta-form input.is-ok{border-color:var(--ok);}
.form-msg{grid-column:1 / -1;font-size:13px;color:var(--t-3);min-height:20px;}
.form-msg.is-error{color:var(--warn);}
.form-msg.is-ok{color:var(--ok);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--t-2);line-height:1.85;max-width:380px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--t-2);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:var(--t-3);}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,10,13,.66);z-index:90;
  opacity:0;pointer-events:none;transition:opacity var(--ease);
  -webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:95;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s cubic-bezier(.4,0,.2,1);
  padding:22px 20px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);color:var(--t-1);cursor:pointer;
}
.drawer nav{display:flex;flex-direction:column;}
.drawer nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;
  font-size:15px;color:var(--t-2);border-radius:10px;border-left:3px solid transparent;
}
.drawer nav a:hover{background:var(--glass);color:var(--t-1);}
.drawer nav a.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(23,224,164,.08);}
.drawer .drawer-cta{margin-top:22px;display:block;width:100%;}
.drawer .search-box{margin-top:18px;width:100%;}
.drawer .search-box input{width:100%;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .main-nav{display:none;}
  .burger{display:grid;}
  .header-actions .search-box input{width:120px;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .wall-cell{width:50%;}
  .method-media{min-height:280px;margin-bottom:20px;}
  .tip-cell:nth-child(even){transform:none;}
  .cta-inner{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .wide-card{grid-template-columns:1fr;}
  .wide-media{min-height:220px;}
  .wide-body{padding:28px 26px;}
  .hero-inner{padding:72px 24px 104px;}
}
@media (max-width:900px){
  .header-actions .search-box{display:none;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .channel-tabs{padding:10px 16px;}
  .wall-cell{width:100%;padding:0 12px;}
  .wall-grid{margin:0 -12px;}
  .hero-inner{padding:56px 16px 92px;}
  .hero-title{font-size:28px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .stat-wrap{margin-top:-52px;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat-item{padding:18px 16px;}
  .cta-form{grid-template-columns:1fr;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .dim-item{padding:18px 18px;}
  .tip-card{padding:24px 22px 26px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a{padding:0 18px 20px 18px;}
  .wide-body{padding:24px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --bg-0:#0A1216;
  --bg-1:#0E1B21;
  --bg-2:#14262E;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#17E0A4;
  --action:#FF6B2C;
  --cool:#6FE3FF;
  --t-1:#F2F7F6;
  --t-2:#9DB3B1;
  --t-3:#6B8386;
  --ok:#35D07F;
  --warn:#FF4D5E;
  --info:#6FE3FF;
  --r-card:16px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:12px;
  --sh-1:0 10px 28px rgba(0,0,0,.45);
  --sh-2:0 18px 42px rgba(0,0,0,.55);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(23,224,164,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(111,227,255,.07), transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;}
a{color:var(--t-1);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
  border-radius:6px;
}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
h1{font-size:clamp(30px,4.6vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.01em;}
h2{font-size:clamp(22px,2.6vw,34px);line-height:1.25;font-weight:700;}
h3{font-size:clamp(17px,1.6vw,21px);line-height:1.4;font-weight:600;}
.num{font-variant-numeric:tabular-nums;}
.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:96px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";width:26px;height:2px;background:var(--brand);border-radius:2px;display:inline-block;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--t-2);font-size:15.5px;max-width:760px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.ghost-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-size:14px;font-weight:600;white-space:nowrap;
}
.ghost-link .arw{transition:transform var(--ease);}
.ghost-link:hover .arw{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-action{
  background:var(--action);color:#151312;
  box-shadow:0 8px 26px rgba(255,107,44,.28);
}
.btn-action:hover{background:#ff7f49;color:#151312;transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,107,44,.4);}
.btn-ghost{
  background:var(--glass);border-color:var(--line);color:var(--t-1);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ---------- 顶栏 ---------- */
.header-bar{
  position:sticky;top:0;z-index:80;
  background:rgba(10,18,22,.84);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg,#17E0A4,#0E9C74);
  color:#062018;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 6px 18px rgba(23,224,164,.25);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text strong{font-size:16px;font-weight:700;letter-spacing:.01em;}
.logo-text span{font-size:11.5px;color:var(--t-2);letter-spacing:.08em;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:nowrap;}
.main-nav a{
  padding:9px 13px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--t-2);white-space:nowrap;
}
.main-nav a:hover{color:var(--brand);background:rgba(23,224,164,.08);}
.main-nav a.is-active{color:var(--brand);background:rgba(23,224,164,.12);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:4px 4px 4px 16px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.search-box input{
  border:0;background:transparent;color:var(--t-1);
  font-size:14px;width:150px;padding:8px 4px;outline:none;
}
.search-box input::placeholder{color:var(--t-3);}
.search-box button{
  width:34px;height:34px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(23,224,164,.14);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  transition:background var(--ease);
}
.search-box button:hover{background:rgba(23,224,164,.26);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--t-1);
  cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 频道行 ---------- */
.channel-bar{
  background:rgba(14,27,33,.7);
  border-bottom:1px solid var(--line-soft);
}
.channel-scroll{
  display:flex;align-items:center;gap:10px;
  padding-top:12px;padding-bottom:12px;
  overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  padding:9px 18px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:transparent;
  color:var(--t-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:all var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-active{
  background:rgba(23,224,164,.14);
  border-color:rgba(23,224,164,.55);
  color:var(--brand);font-weight:600;
  box-shadow:0 0 0 3px rgba(23,224,164,.08);
}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(340px,86vw);
  background:var(--bg-1);border-left:1px solid var(--line);
  z-index:120;padding:24px 20px 40px;
  transform:translateX(102%);transition:transform var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,10,.66);
  z-index:110;opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer h4{font-size:12px;letter-spacing:.14em;color:var(--t-3);margin:26px 0 10px;font-weight:600;}
.drawer a.d-item{
  display:flex;align-items:center;min-height:48px;padding:0 12px;
  border-radius:10px;color:var(--t-2);font-size:15px;border-left:3px solid transparent;
}
.drawer a.d-item:hover{background:var(--bg-2);color:var(--brand);}
.drawer a.d-item.is-active{color:var(--brand);border-left-color:var(--brand);background:var(--bg-2);font-weight:600;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;background:var(--glass);
  border:1px solid var(--line);color:var(--t-1);cursor:pointer;font-size:18px;
}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--t-2);}
.crumb li{display:flex;align-items:center;gap:10px;}
.crumb li+li::before{content:"/";color:var(--t-3);}
.crumb a{color:var(--t-2);}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--t-3);}

/* ---------- 页面头 ---------- */
.page-head{padding:34px 0 0;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--r-btn);
  font-size:12px;letter-spacing:.02em;
  border:1px solid var(--line);color:var(--t-2);background:var(--glass);
}
.badge-brand{border-color:rgba(23,224,164,.5);color:var(--brand);background:rgba(23,224,164,.10);}
.badge-hot{border-color:rgba(255,107,44,.5);color:var(--action);background:rgba(255,107,44,.10);}
.page-head h1{max-width:900px;margin-bottom:16px;}
.page-head .lede{font-size:16.5px;color:var(--t-2);max-width:720px;}
.board-note{
  margin-top:28px;
  display:flex;flex-wrap:wrap;align-items:center;gap:18px 34px;
  padding:20px 24px;border-radius:var(--r-card);
  background:var(--bg-1);border:1px solid var(--line);
}
.board-note .note-item{display:flex;flex-direction:column;gap:2px;}
.board-note .note-item strong{font-size:19px;font-weight:700;color:var(--brand);}
.board-note .note-item span{font-size:12.5px;color:var(--t-3);letter-spacing:.02em;}
.board-note p{font-size:14px;color:var(--t-2);flex:1 1 260px;min-width:220px;}

/* ---------- 排行 ---------- */
.rank-layout{margin-top:8px;}
.rank-list{display:flex;flex-direction:column;gap:16px;}
.rank-item{
  display:flex;gap:20px;align-items:flex-start;
  padding:22px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line-soft);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rank-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,224,164,.28);}
.rank-no{
  flex:0 0 54px;font-size:32px;line-height:1;font-weight:800;
  color:transparent;-webkit-text-stroke:1.4px var(--brand);
  font-variant-numeric:tabular-nums;padding-top:4px;
}
.rank-item.top .rank-no{-webkit-text-stroke:1.5px var(--action);}
.rank-thumb{
  flex:0 0 172px;aspect-ratio:16/10;border-radius:var(--r-img);
  overflow:hidden;background:var(--bg-1);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.rank-item:hover .rank-thumb img{transform:scale(1.04);}
.rank-body{flex:1 1 auto;min-width:0;}
.rank-body h3{margin-bottom:8px;}
.rank-body h3 a{color:var(--t-1);}
.rank-body h3 a:hover{color:var(--brand);}
.rank-body p{
  font-size:14.5px;color:var(--t-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:14px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tag{
  font-size:12px;letter-spacing:.02em;padding:4px 10px;border-radius:6px;
  border:1px solid var(--line);color:var(--t-2);
}
.tag-brand{border-color:rgba(23,224,164,.45);color:var(--brand);}
.tag-hot{border-color:rgba(255,107,44,.45);color:var(--action);}
.heat{display:flex;align-items:center;gap:12px;}
.heat-track{
  flex:1 1 auto;height:6px;border-radius:6px;background:rgba(255,255,255,.08);overflow:hidden;
}
.heat-fill{
  height:100%;border-radius:6px;
  background:linear-gradient(90deg,rgba(23,224,164,.55),var(--brand));
  box-shadow:0 0 12px rgba(23,224,164,.35);
}
.heat-fill.hot{background:linear-gradient(90deg,rgba(255,107,44,.5),var(--action));box-shadow:0 0 12px rgba(255,107,44,.35);}
.heat-val{font-size:12.5px;color:var(--t-3);font-variant-numeric:tabular-nums;flex:0 0 auto;}

/* ---------- 侧栏推荐 ---------- */
.side-col{margin-top:16px;}
.side-title{
  display:flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.12em;color:var(--t-3);
  font-weight:600;margin-bottom:16px;
}
.side-title::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.side-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;
}
.mini-card{
  display:block;border-radius:var(--r-card);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line-soft);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,224,164,.28);}
.mini-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--bg-1);position:relative;}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.mini-card:hover .thumb img{transform:scale(1.04);}
.mini-card .thumb .corner{
  position:absolute;left:10px;top:10px;font-size:11px;
  padding:3px 9px;border-radius:var(--r-btn);
  background:rgba(10,18,22,.72);border:1px solid rgba(23,224,164,.42);
  color:var(--brand);backdrop-filter:blur(8px);
}
.mini-card .body{padding:14px 14px 16px;}
.mini-card h3{font-size:15px;line-height:1.45;margin-bottom:8px;color:var(--t-1);}
.mini-card:hover h3{color:var(--brand);}
.mini-card .meta{font-size:12px;color:var(--t-3);}

/* ---------- 步骤 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.step-card{
  position:relative;padding:30px 26px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line-soft);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,224,164,.28);}
.step-card .idx{
  font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:.12em;margin-bottom:16px;display:block;
  font-variant-numeric:tabular-nums;
}
.step-card h3{margin-bottom:10px;}
.step-card p{color:var(--t-2);font-size:14.5px;}
.step-card::after{
  content:"";position:absolute;left:0;top:26px;width:3px;height:34px;
  background:var(--brand);border-radius:0 3px 3px 0;
}

/* ---------- 数据 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric{
  padding:26px 22px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.metric strong{
  display:block;font-size:30px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;margin-bottom:8px;
}
.metric span{font-size:13.5px;color:var(--t-2);}
.metric-note{margin-top:22px;font-size:14px;color:var(--t-3);max-width:860px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{
  border-radius:14px;background:var(--bg-1);
  border:1px solid var(--line-soft);overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item[open]{border-color:rgba(23,224,164,.4);background:var(--bg-2);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:18px;font-weight:600;color:var(--t-1);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .25s cubic-bezier(.4,0,.2,1);
  margin-right:4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);opacity:0;transition:opacity var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item .answer{padding:0 24px 22px 24px;color:var(--t-2);font-size:15px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  background:var(--bg-1);
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto -10%;height:180%;
  background:
    repeating-linear-gradient(115deg,rgba(23,224,164,.09) 0 2px,transparent 2px 82px),
    radial-gradient(600px 320px at 82% 20%,rgba(255,107,44,.16),transparent 65%);
  pointer-events:none;
}
.cta-inner{
  position:relative;display:flex;align-items:center;gap:44px;flex-wrap:wrap;
  justify-content:space-between;
}
.cta-copy{flex:1 1 420px;min-width:280px;}
.cta-copy h2{margin-bottom:12px;}
.cta-copy p{color:var(--t-2);font-size:15.5px;max-width:520px;}
.cta-form{flex:1 1 420px;min-width:280px;max-width:520px;}
.cta-form label{display:block;font-size:13px;color:var(--t-2);margin-bottom:10px;}
.field-row{display:flex;gap:12px;flex-wrap:wrap;}
.field-row input{
  flex:1 1 220px;min-width:0;
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-input);color:var(--t-1);
  padding:14px 16px;font-size:14.5px;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field-row input::placeholder{color:var(--t-3);}
.field-row input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18);}
.field-row input.is-error{border-color:var(--warn);box-shadow:0 0 0 3px rgba(255,77,94,.16);}
.field-row input.is-ok{border-color:var(--ok);box-shadow:0 0 0 3px rgba(53,208,127,.16);}
.form-hint{margin-top:12px;font-size:13px;color:var(--t-3);}
.form-hint.is-error{color:var(--warn);}
.form-hint.is-ok{color:var(--ok);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand p{color:var(--t-2);font-size:14.5px;max-width:360px;}
.footer-col h4{
  font-size:13px;letter-spacing:.1em;color:var(--t-1);
  font-weight:600;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col span{color:var(--t-2);font-size:14.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--t-3);}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .main-nav a{padding:9px 9px;font-size:13.5px;}
  .search-box input{width:110px;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
  .rank-thumb{flex:0 0 150px;}
  .cta-band{padding:56px 0;}
}
@media (max-width:768px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .header-inner{min-height:64px;gap:12px;}
  .logo-text span{display:none;}
  .rank-item{flex-wrap:wrap;gap:16px;padding:18px;}
  .rank-no{flex:0 0 auto;font-size:26px;padding-top:0;}
  .rank-thumb{flex:1 1 100%;aspect-ratio:16/9;}
  .rank-body{flex:1 1 100%;}
  .side-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{gap:28px;}
  .btn{width:100%;}
  .header-actions .btn{width:auto;}
  .field-row .btn{width:100%;}
}
@media (max-width:520px){
  h1{font-size:clamp(28px,7.2vw,34px);}
  .step-grid{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .side-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .board-note{padding:18px;}
  .faq-item summary{font-size:16px;padding:18px 18px;}
  .faq-item .answer{padding:0 18px 20px 18px;}
  .rank-body p{-webkit-line-clamp:3;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category5 */
:root{
  --bg-0:#0A1216;
  --bg-1:#0E1B21;
  --bg-2:#14262E;
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.10);
  --brand:#17E0A4;
  --action:#FF6B2C;
  --cool:#6FE3FF;
  --t-1:#F2F7F6;
  --t-2:#9DB3B1;
  --t-3:#6B8386;
  --ok:#35D07F;
  --warn:#FF4D5E;
  --r-card:16px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:12px;
  --sh-card:0 10px 28px rgba(0,0,0,.45);
  --sh-hover:0 18px 42px rgba(0,0,0,.55);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
  --max-w:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--t-1);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
a:hover{color:var(--brand)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:var(--sp-8) 0}
.section--tight{padding:var(--sp-7) 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--glass-line);border-bottom:1px solid var(--glass-line)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,18,22,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--glass-line)}
.header-row{display:flex;align-items:center;gap:var(--sp-4);min-height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:linear-gradient(140deg,var(--brand),#0E9C77);color:#07231B;font-weight:800;font-size:14px;letter-spacing:.02em;box-shadow:0 8px 20px rgba(23,224,164,.24)}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text strong{font-size:16px;font-weight:700;letter-spacing:.01em}
.logo-text span{font-size:12px;color:var(--t-2);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{padding:8px 12px;border-radius:10px;font-size:14.5px;color:var(--t-2);white-space:nowrap;border:1px solid transparent}
.main-nav a:hover{color:var(--t-1);background:var(--glass);border-color:var(--glass-line)}
.main-nav a.is-active{color:var(--brand);background:rgba(23,224,164,.10);border-color:rgba(23,224,164,.32)}
.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-box{display:flex;align-items:center;background:var(--bg-2);border:1px solid var(--glass-line);border-radius:var(--r-input);padding:0 6px 0 12px;height:42px}
.search-box input{background:transparent;border:0;outline:none;width:150px;font-size:14px;color:var(--t-1)}
.search-box input::placeholder{color:var(--t-3)}
.search-box button{width:32px;height:32px;border-radius:8px;color:var(--brand);display:inline-flex;align-items:center;justify-content:center}
.search-box button:hover{background:rgba(23,224,164,.12)}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 22px;min-height:44px;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);border:1px solid transparent;text-align:center}
.btn--primary{background:var(--action);color:#20100A;box-shadow:0 8px 26px rgba(255,107,44,.28)}
.btn--primary:hover{background:#FF8350;color:#20100A;transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,107,44,.38)}
.btn--ghost{background:var(--glass);border-color:var(--glass-line);color:var(--t-1);backdrop-filter:blur(10px)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--sm{padding:9px 16px;font-size:14px;min-height:40px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:600}
.link-more i{transition:transform var(--ease)}
.link-more:hover i{transform:translateX(4px)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--glass-line);border-radius:12px;color:var(--t-1);background:var(--glass);align-items:center;justify-content:center}

/* ---------- channel tabs ---------- */
.channel-bar{border-bottom:1px solid var(--glass-line);background:var(--bg-1)}
.channel-scroll{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;padding:12px 0;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-tab{flex:0 0 auto;scroll-snap-align:start;padding:9px 18px;border-radius:var(--r-btn);border:1px solid var(--glass-line);color:var(--t-2);font-size:14px;white-space:nowrap;background:transparent}
.channel-tab:hover{color:var(--t-1);border-color:rgba(23,224,164,.4)}
.channel-tab.is-active{background:rgba(23,224,164,.14);border-color:var(--brand);color:var(--brand);box-shadow:0 0 18px rgba(23,224,164,.20)}

/* ---------- page banner ---------- */
.page-banner{position:relative;padding:var(--sp-7) 0 var(--sp-6);background-image:linear-gradient(100deg,rgba(10,18,22,.94) 8%,rgba(10,18,22,.72) 52%,rgba(10,18,22,.92) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;border-bottom:1px solid var(--glass-line)}
.breadcrumb{font-size:13px;color:var(--t-3);margin-bottom:var(--sp-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb a{color:var(--t-2)}
.breadcrumb span.sep{color:var(--t-3)}
.banner-inner{max-width:820px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:var(--sp-3)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.02em;padding:6px 12px;border-radius:var(--r-btn);border:1px solid var(--glass-line);color:var(--t-2);background:var(--glass)}
.badge--brand{border-color:rgba(23,224,164,.42);color:var(--brand);background:rgba(23,224,164,.10)}
.badge--action{border-color:rgba(255,107,44,.45);color:#FFB388;background:rgba(255,107,44,.12)}
.page-banner h1{font-size:clamp(30px,4.4vw,50px);line-height:1.15;font-weight:800;letter-spacing:-.01em}
.page-banner .lead{margin-top:var(--sp-3);font-size:17px;color:var(--t-2);max-width:720px}
.banner-meta{margin-top:var(--sp-4);display:flex;flex-wrap:wrap;gap:22px;font-size:13px;color:var(--t-2)}
.banner-meta strong{color:var(--t-1);font-weight:600}

/* ---------- section head ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);margin-bottom:var(--sp-5);flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:10px}
.eyebrow::before{content:"";display:block;width:26px;height:2px;background:var(--brand);border-radius:2px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.25;font-weight:700}
.section-head p.sub{margin-top:10px;color:var(--t-2);font-size:15px;max-width:640px}

/* ---------- magazine layout ---------- */
.feature-card{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--sh-card);background:var(--bg-2);display:block;transition:transform var(--ease),box-shadow var(--ease)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.feature-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-overlay{position:absolute;inset:auto 0 0 0;padding:32px 28px 26px;background:linear-gradient(to top,rgba(6,12,15,.96) 12%,rgba(6,12,15,.62) 58%,rgba(6,12,15,0) 100%)}
.feature-overlay .tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:5px 11px;border-radius:6px;background:rgba(23,224,164,.16);border:1px solid rgba(23,224,164,.42);color:var(--brand);margin-bottom:12px}
.feature-overlay h3{font-size:clamp(20px,2.4vw,30px);line-height:1.35;font-weight:700;max-width:760px}
.feature-overlay p{margin-top:10px;color:#C5D5D3;font-size:15px;max-width:760px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-overlay .meta{margin-top:14px;font-size:12.5px;color:var(--t-2);display:flex;gap:18px;flex-wrap:wrap}

.mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--sp-4);margin-top:var(--sp-6)}
.mosaic-item{grid-column:span 6;background:var(--bg-2);border:1px solid var(--glass-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform var(--ease),box-shadow var(--ease);display:block}
.mosaic-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.mosaic-item .thumb{aspect-ratio:16/9;overflow:hidden}
.mosaic-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.mosaic-item:hover .thumb img{transform:scale(1.04)}
.mosaic-body{padding:22px 22px 24px}
.mosaic-item h3{font-size:19px;font-weight:600;line-height:1.45}
.mosaic-item p{margin-top:10px;color:var(--t-2);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mosaic-item .meta{margin-top:14px;font-size:12.5px;color:var(--t-3);display:flex;gap:16px;flex-wrap:wrap}
.mosaic-item:nth-child(odd){grid-column:span 7}
.mosaic-item:nth-child(even){grid-column:span 5}
.mosaic-item:nth-child(even) .thumb{aspect-ratio:4/3}

.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4);margin-top:var(--sp-6)}
.mini-card{background:var(--bg-1);border:1px solid var(--glass-line);border-radius:14px;padding:0 0 20px;overflow:hidden;transition:transform var(--ease),border-color var(--ease)}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(23,224,164,.36)}
.mini-card .thumb{aspect-ratio:3/2;overflow:hidden;margin-bottom:16px}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover}
.mini-card h3{font-size:16.5px;font-weight:600;padding:0 20px}
.mini-card p{font-size:14px;color:var(--t-2);padding:8px 20px 0}
.mini-card .meta{display:block;font-size:12px;color:var(--t-3);padding:12px 20px 0}

/* ---------- checklist ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:var(--sp-6);align-items:start}
.check-list li{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.check-list li:last-child{border-bottom:0}
.check-list .idx{flex:0 0 auto;width:30px;height:30px;border-radius:9px;border:1px solid rgba(23,224,164,.42);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.check-list h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.check-list p{font-size:14.5px;color:var(--t-2)}
.stat-panel{background:var(--bg-2);border:1px solid var(--glass-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-card)}
.stat-panel h3{font-size:17px;font-weight:600;margin-bottom:18px}
.stat-panel .stat{display:flex;align-items:baseline;justify-content:space-between;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.10)}
.stat-panel .stat:last-child{border-bottom:0}
.stat-panel .stat span{font-size:14px;color:var(--t-2)}
.stat-panel .stat b{font-size:22px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.note{margin-top:20px;padding:16px 18px;border-radius:14px;background:rgba(111,227,255,.07);border:1px solid rgba(111,227,255,.24);color:var(--t-2);font-size:13.5px}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{background:var(--bg-1);border:1px solid var(--glass-line);border-radius:14px;overflow:hidden;transition:border-color var(--ease)}
.faq-item.is-open{border-color:rgba(23,224,164,.38)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:17px;font-weight:600;text-align:left;color:var(--t-1);position:relative}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--brand);opacity:0;transition:opacity var(--ease)}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-q i{color:var(--brand);transition:transform var(--ease);flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s cubic-bezier(.4,0,.2,1)}
.faq-a p{padding:0 22px 22px 22px;color:var(--t-2);font-size:14.8px}

/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--bg-1);border-top:1px solid var(--glass-line);border-bottom:1px solid var(--glass-line);overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:-40% -10% auto auto;width:60%;height:200%;background:linear-gradient(115deg,rgba(23,224,164,.16),rgba(23,224,164,0) 62%);transform:skewX(-14deg);pointer-events:none}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr 1fr;gap:var(--sp-6);align-items:center;padding:var(--sp-7) 0}
.cta-grid h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3}
.cta-grid p{margin-top:12px;color:var(--t-2);font-size:15.5px;max-width:520px}
.cta-form{display:flex;gap:12px;background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(14px);border-radius:18px;padding:14px}
.cta-form input{flex:1 1 auto;min-width:0;background:var(--bg-2);border:1px solid var(--glass-line);border-radius:var(--r-input);padding:13px 16px;font-size:15px;outline:none}
.cta-form input::placeholder{color:var(--t-3)}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,224,164,.18)}
.form-hint{margin-top:12px;font-size:13px;color:var(--t-3)}
.form-msg{margin-top:10px;font-size:13.5px;display:none}
.form-msg.is-ok{display:block;color:var(--ok)}
.form-msg.is-err{display:block;color:var(--warn)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--glass-line);padding-top:var(--sp-7)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--sp-5)}
.footer-brand .footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .footer-logo .logo-text strong{font-size:15.5px}
.footer-brand p{color:var(--t-2);font-size:14px;max-width:360px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a,.footer-col ul li span{color:var(--t-2);font-size:14px}
.footer-col ul li a:hover{color:var(--brand)}
.footer-bottom{margin-top:var(--sp-6);border-top:1px solid var(--glass-line);padding:22px 0 32px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:var(--t-3)}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(4,8,10,.62);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);background:var(--bg-1);border-left:1px solid var(--glass-line);z-index:80;transform:translateX(100%);transition:transform .26s cubic-bezier(.4,0,.2,1);padding:22px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer .drawer-head .close{width:42px;height:42px;border-radius:12px;border:1px solid var(--glass-line);color:var(--t-1);display:inline-flex;align-items:center;justify-content:center}
.drawer nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;color:var(--t-2);font-size:15.5px;border-left:3px solid transparent}
.drawer nav a.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(23,224,164,.08)}
.drawer .drawer-search{margin:18px 0;display:flex;gap:10px}
.drawer .drawer-search input{flex:1;background:var(--bg-2);border:1px solid var(--glass-line);border-radius:var(--r-input);padding:12px 14px;outline:none}
.drawer .btn{width:100%}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .section{padding:var(--sp-7) 0}
  .main-nav{display:none}
  .search-box{display:none}
  .nav-toggle{display:inline-flex}
  .mosaic-item:nth-child(odd),.mosaic-item:nth-child(even){grid-column:span 6}
  .mosaic-item:nth-child(even) .thumb{aspect-ratio:16/9}
  .split{grid-template-columns:1fr;gap:var(--sp-5)}
  .cta-grid{grid-template-columns:1fr;gap:var(--sp-4);padding:var(--sp-6) 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-5)}
  .trio{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:var(--sp-6) 0}
  .page-banner{padding:var(--sp-6) 0 var(--sp-5)}
  .page-banner h1{font-size:30px}
  .btn{width:100%}
  .header-tools .btn{display:none}
  .mosaic{grid-template-columns:1fr}
  .mosaic-item:nth-child(odd),.mosaic-item:nth-child(even){grid-column:span 1}
  .mosaic-item:nth-child(even) .thumb{aspect-ratio:16/9}
  .trio{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-form{flex-direction:column;padding:16px}
  .feature-overlay{padding:22px 18px 20px}
  .footer-bottom{padding:20px 0 28px}
}