/* roulang page: index */
:root{
  --bg:#070C16;
  --bg-2:#0A1120;
  --bg-3:#0C1526;
  --bg-4:#101C30;
  --primary:#2FE0C8;
  --primary-soft:rgba(47,224,200,.14);
  --indigo:#5B6CFF;
  --accent:#FF9A5A;
  --text:#E8EEF8;
  --text-2:#9BA9C0;
  --text-3:#66748C;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.08);
  --r-s:8px;
  --r:16px;
  --r-l:20px;
  --pill:999px;
  --sh:0 18px 40px rgba(0,0,0,.45);
  --sh-h:0 24px 56px rgba(0,0,0,.55);
  --glow:0 10px 30px rgba(47,224,200,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 18% 6%, rgba(47,224,200,.10), transparent 42%),
    radial-gradient(circle at 84% 2%, rgba(91,108,255,.09), transparent 38%),
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size:auto,auto,72px 72px,72px 72px;
  opacity:1;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:.005em}
h2{font-size:30px}
h3{font-size:20px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-2)}
.section--deep{background:var(--bg-3)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{margin-bottom:16px}
.section-head p{color:var(--text-2);margin:0;font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(47,224,200,.22);
  border-radius:var(--pill);padding:6px 14px;margin-bottom:20px;
}
.eyebrow i{font-size:12px}
.text-2{color:var(--text-2)}
.text-3{color:var(--text-3)}

/* 通用玻璃面板 */
.glass{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh);
  overflow:hidden;
}
.glass::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.35),transparent);
}
.glass--hover{transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.glass--hover:hover{transform:translateY(-2px);box-shadow:var(--sh-h);border-color:var(--line-2)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#3AEBD3,#1FC8B2);
  color:#04231F;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 38px rgba(47,224,200,.34);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(47,224,200,.24)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--text);border-color:var(--line-2);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(47,224,200,.4);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost--sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.link-more{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px;color:#5CF2DE}

/* 标签 / 徽章 */
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);white-space:nowrap;
  transition:all .2s var(--ease);
}
.tag:hover{color:var(--primary);border-color:rgba(47,224,200,.4);background:var(--primary-soft)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid rgba(47,224,200,.35);color:var(--primary);background:var(--primary-soft);
}
.badge--accent{border-color:rgba(255,154,90,.4);color:var(--accent);background:rgba(255,154,90,.12)}
.badge--indigo{border-color:rgba(91,108,255,.4);color:#96A2FF;background:rgba(91,108,255,.14)}
.badge--muted{border-color:var(--line);color:var(--text-2);background:rgba(255,255,255,.04)}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,22,.82);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,12,22,.94);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.nav-main-inner{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(47,224,200,.22),rgba(91,108,255,.22));
  border:1px solid rgba(47,224,200,.32);color:var(--primary);font-size:16px;
  box-shadow:0 0 0 1px rgba(47,224,200,.1), 0 8px 20px rgba(47,224,200,.16);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-search{
  flex:1;max-width:420px;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:var(--pill);padding:6px 6px 6px 16px;margin-left:8px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,224,200,.14)}
.nav-search i{color:var(--text-3);font-size:14px}
.nav-search input{
  flex:1;background:transparent;border:0;color:var(--text);font-size:14px;padding:6px 0;min-width:0;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{outline:none}
.nav-search button{
  border-radius:var(--pill);padding:7px 16px;font-size:13px;font-weight:600;
  background:rgba(47,224,200,.14);color:var(--primary);border:1px solid rgba(47,224,200,.24);
  transition:background .2s var(--ease);
}
.nav-search button:hover{background:rgba(47,224,200,.24)}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;margin-left:auto}
.link-login{font-size:14px;color:var(--text-2)}
.link-login:hover{color:var(--primary)}
.nav-toggle{display:none;font-size:18px;color:var(--text);padding:8px;border-radius:var(--r-s)}
.nav-toggle:hover{background:rgba(255,255,255,.06)}

.nav-channel{border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{
  position:relative;padding:8px 16px;font-size:15px;color:var(--text-2);border-radius:var(--r-s);
  white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease);
}
.channel-inner a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.channel-inner a.is-active{color:var(--primary);font-weight:600}
.channel-inner a.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
}
.nav-hot{border-top:1px solid var(--line);background:rgba(255,255,255,.014);transition:max-height .3s var(--ease),opacity .3s var(--ease);max-height:60px;overflow:hidden}
.site-header.is-scrolled .nav-hot{max-height:0;opacity:0}
.hot-inner{display:flex;align-items:center;gap:10px;height:46px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--text-3);letter-spacing:.1em;flex-shrink:0}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;display:none;
  background:rgba(7,12,22,.96);backdrop-filter:blur(18px);
  padding:24px;overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{font-size:20px;padding:8px 12px;border-radius:var(--r-s);background:rgba(255,255,255,.06)}
.drawer-group{margin-bottom:28px}
.drawer-group h4{font-size:13px;letter-spacing:.1em;color:var(--text-3);margin-bottom:14px;font-weight:600}
.drawer-group a{display:block;padding:13px 4px;font-size:16px;border-bottom:1px solid var(--line);color:var(--text-2)}
.drawer-group a.is-active{color:var(--primary);font-weight:600}
.drawer-tags{display:flex;flex-wrap:wrap;gap:10px}

/* Hero */
.hero{position:relative;overflow:hidden;padding:104px 0 96px}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg, rgba(7,12,22,.95) 0%, rgba(7,12,22,.86) 42%, rgba(7,12,22,.62) 100%),
    linear-gradient(180deg, rgba(7,12,22,.5), rgba(7,12,22,.9));
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.hero h1{font-size:44px;line-height:1.25;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;max-width:620px}
.hero-stats .num{
  font-family:Inter,Barlow,-apple-system,sans-serif;
  font-size:26px;font-weight:700;color:var(--primary);letter-spacing:.01em;line-height:1.2;
}
.hero-stats .lbl{font-size:13px;color:var(--text-3);line-height:1.5;margin-top:2px}
.hero-card{padding:28px}
.hero-card h3{font-size:18px;margin-bottom:6px}
.hero-card .price{
  font-family:Inter,Barlow,sans-serif;font-size:34px;font-weight:700;color:var(--accent);
  line-height:1.2;margin:12px 0 4px;
}
.hero-card .price span{font-size:14px;color:var(--text-3);font-weight:400;font-family:inherit}
.hero-card-list{margin:20px 0 24px}
.hero-card-list li{
  display:flex;align-items:flex-start;gap:10px;padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--text-2);
}
.hero-card-list li:last-child{border-bottom:0}
.hero-card-list i{color:var(--primary);font-size:13px;margin-top:7px}
.hero-card .btn{width:100%}

/* 权益对比 */
.bill-switch{
  display:inline-flex;padding:5px;border-radius:var(--pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);margin-bottom:36px;
}
.bill-tab{
  padding:9px 24px;border-radius:var(--pill);font-size:14px;font-weight:600;color:var(--text-2);
  transition:all .2s var(--ease);
}
.bill-tab:hover{color:var(--text)}
.bill-tab.is-active{background:rgba(47,224,200,.16);color:var(--primary);box-shadow:0 0 0 1px rgba(47,224,200,.3)}
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.plan{padding:32px 26px}
.plan--feature{transform:translateY(-8px);border-color:rgba(47,224,200,.3)}
.plan--feature::before{background:linear-gradient(90deg,transparent,rgba(47,224,200,.85),transparent)}
.plan-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.plan-name{font-size:19px;font-weight:800}
.plan-price{
  font-family:Inter,Barlow,sans-serif;font-size:32px;font-weight:700;line-height:1.2;margin-bottom:4px;
}
.plan-price small{font-size:14px;font-weight:400;color:var(--text-3);font-family:inherit}
.plan--feature .plan-price{color:var(--accent)}
.plan-note{font-size:13px;color:var(--text-3);margin-bottom:20px;min-height:20px}
.plan-rows li{
  display:flex;align-items:center;gap:10px;min-height:56px;padding:10px 0;
  border-bottom:1px solid var(--line);font-size:14px;color:var(--text-2);
}
.plan-rows li:last-child{border-bottom:0}
.plan-rows i.ok{color:var(--primary)}
.plan-rows i.no{color:var(--text-3)}
.plan-rows span.k{color:var(--text-3);min-width:76px;flex-shrink:0;font-size:13px}
.plan .btn{width:100%;margin-top:22px}

/* 等级亮点 */
.level-wrap{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:40px}
.level-rail{position:relative;padding-left:26px}
.level-rail::before{
  content:"";position:absolute;left:7px;top:12px;bottom:12px;width:1px;
  background:linear-gradient(180deg,transparent,rgba(47,224,200,.4),rgba(91,108,255,.3),transparent);
}
.level-step{
  position:relative;display:block;width:100%;text-align:left;
  padding:14px 16px 14px 8px;border-radius:var(--r-s);margin-bottom:10px;
  color:var(--text-2);transition:all .2s var(--ease);
}
.level-step::before{
  content:"";position:absolute;left:-24px;top:22px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--text-3);transition:all .2s var(--ease);
}
.level-step:hover{background:rgba(255,255,255,.04);color:var(--text)}
.level-step.is-active{background:var(--primary-soft);color:var(--text)}
.level-step.is-active::before{border-color:var(--primary);box-shadow:0 0 0 4px rgba(47,224,200,.16);background:var(--primary)}
.level-step .lvl{font-size:16px;font-weight:700;display:block}
.level-step .lvl-sub{font-size:12px;color:var(--text-3);display:block;margin-top:2px}
.level-panel{padding:32px;display:none}
.level-panel.is-active{display:block}
.level-panel-head{display:flex;align-items:center;gap:16px;margin-bottom:8px;flex-wrap:wrap}
.level-panel-head h3{font-size:22px}
.level-panel-media{
  margin-top:24px;border-radius:var(--r);overflow:hidden;position:relative;
}
.level-panel-media img{width:100%;height:230px;object-fit:cover}
.level-panel-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,0),rgba(7,12,22,.72))}
.level-points{margin-top:22px}
.level-points li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--text-2)}
.level-points li:last-child{border-bottom:0}
.level-points i{color:var(--primary);margin-top:7px;font-size:13px}
.level-points strong{color:var(--text);font-weight:600}

/* 专属内容预览 */
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 24px;margin:0 -4px;scrollbar-width:thin}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:3px}
.preview-card{
  flex:0 0 31%;scroll-snap-align:start;overflow:hidden;display:flex;flex-direction:column;
}
.preview-media{position:relative;height:180px;overflow:hidden}
.preview-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.preview-card:hover .preview-media img{transform:scale(1.04)}
.preview-media .badge{position:absolute;top:14px;left:14px;backdrop-filter:blur(6px)}
.preview-body{padding:20px;display:flex;flex-direction:column;flex:1}
.preview-body h3{font-size:17px;margin-bottom:10px}
.preview-body p{font-size:14px;color:var(--text-2);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.preview-meta{margin-top:auto;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.preview-card.is-locked .preview-media img,
.preview-card.is-locked .preview-body h3,
.preview-card.is-locked .preview-body p{filter:blur(6px);opacity:.6;user-select:none}
.preview-lock{
  position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  background:rgba(7,12,22,.55);backdrop-filter:blur(2px);
}
.preview-lock i{font-size:22px;color:var(--primary)}
.preview-lock span{font-size:12px;color:var(--text-2)}

/* 最新信息 */
.news-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{display:block;padding:22px 24px;border-radius:var(--r);transition:all .22s var(--ease)}
.news-item.is-lead{padding:30px 30px 28px}
.news-item.is-lead h3{font-size:24px;margin-bottom:12px}
.news-item h3{font-size:17px;margin-bottom:8px;transition:color .2s var(--ease)}
.news-item:hover h3{color:var(--primary)}
.news-item p{font-size:14px;color:var(--text-2);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:40px 24px;border-radius:var(--r);
}
.empty-state i{font-size:26px;color:var(--text-3)}
.empty-state p{margin:0;color:var(--text-2);font-size:15px}
.side-block{padding:24px;margin-bottom:20px}
.side-block h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.side-block h3 i{color:var(--primary);font-size:14px}
.side-list li{padding:12px 0;border-bottom:1px dashed var(--line)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{font-size:14px;color:var(--text-2);display:block}
.side-list a:hover{color:var(--primary)}
.side-list .t{font-size:12px;color:var(--text-3);display:block;margin-top:4px}
.vip-card{background:linear-gradient(160deg,rgba(47,224,200,.1),rgba(91,108,255,.08));border-color:rgba(47,224,200,.2)}
.vip-card p{font-size:14px;color:var(--text-2);margin:0 0 18px}
.vip-card .btn{width:100%}

/* 信任条 */
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.trust-item{padding:26px 24px}
.trust-item .num{font-family:Inter,Barlow,sans-serif;font-size:28px;font-weight:700;color:var(--primary);line-height:1.2}
.trust-item h3{font-size:16px;margin:10px 0 8px}
.trust-item p{font-size:14px;color:var(--text-2);margin:0}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px;align-items:start}
.faq-aside p{color:var(--text-2);font-size:15px;margin-bottom:24px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 24px;font-size:16px;font-weight:600;color:var(--text);
  transition:background .2s var(--ease);
}
.faq-q:hover{background:rgba(255,255,255,.03)}
.faq-q .idx{
  font-family:Inter,Barlow,sans-serif;font-size:13px;color:var(--primary);
  min-width:26px;flex-shrink:0;
}
.faq-q .txt{flex:1}
.faq-q .ico{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-2);color:var(--text-2);font-size:12px;
  transition:transform .25s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);color:var(--primary);border-color:rgba(47,224,200,.5)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease);
  position:relative;
}
.faq-a-inner{padding:0 24px 24px 66px;font-size:15px;color:var(--text-2)}
.faq-a-inner p{margin:0}
.faq-item.is-open .faq-a{max-height:340px}
.faq-item.is-open::after{
  content:"";position:absolute;left:24px;right:24px;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,200,.5),transparent);
}

/* CTA */
.cta-panel{
  position:relative;padding:56px;overflow:hidden;
  background:linear-gradient(120deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,200,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;position:relative;z-index:2}
.cta-inner h2{margin-bottom:14px}
.cta-inner p{color:var(--text-2);margin:0 0 20px;font-size:15px}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px}
.cta-right{display:flex;flex-direction:column;align-items:flex-end;gap:14px}
.cta-right .btn{padding:16px 44px;font-size:16px;box-shadow:0 16px 44px rgba(47,224,200,.34)}
.cta-fine{font-size:12px;color:var(--text-3);text-align:right}

/* 页脚 */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 28px;position:relative}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.6fr));gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:320px;margin:0 0 16px}
.footer-contact{font-size:13px;color:var(--text-3);line-height:2}
.footer-col h4{font-size:15px;margin-bottom:18px;font-weight:700}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:24px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.footer-bottom p{margin:0}

/* 响应式 */
@media screen and (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero{padding:80px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:34px}
  .hero-stats{grid-template-columns:repeat(4,minmax(0,1fr))}
  .plan-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .level-wrap{grid-template-columns:1fr;gap:24px}
  .level-rail{display:flex;gap:12px;padding-left:0;overflow-x:auto;padding-bottom:8px}
  .level-rail::before{display:none}
  .level-step{min-width:190px;margin-bottom:0;background:rgba(255,255,255,.04);padding:14px 16px}
  .level-step::before{display:none}
  .preview-card{flex:0 0 46%}
  .news-layout{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .cta-right{align-items:flex-start}
  .cta-fine{text-align:left}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .nav-search{display:none}
  .channel-inner a{padding:8px 12px;font-size:14px}
}
@media screen and (max-width:768px){
  .plan-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:16px;margin:0 -24px;padding-left:24px;padding-right:24px}
  .plan{flex:0 0 78%;scroll-snap-align:start}
  .plan--feature{transform:none}
  .preview-card{flex:0 0 72%}
}
@media screen and (max-width:640px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero{padding:64px 0 56px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:15px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  h2{font-size:22px}
  h3{font-size:18px}
  .nav-main-inner{height:62px;gap:12px}
  .brand-text{font-size:15px}
  .nav-channel{display:none}
  .nav-actions{display:none}
  .nav-toggle{display:block}
  .section-head{margin-bottom:32px}
  .plan{flex:0 0 88%}
  .preview-card{flex:0 0 86%}
  .cta-panel{padding:32px 22px}
  .cta-right .btn{width:100%;padding:15px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-a-inner{padding-left:24px}
  .level-panel{padding:24px 20px}
  .news-item.is-lead{padding:24px 20px}
  .news-item.is-lead h3{font-size:20px}
}

/* roulang page: article */
:root{
  --bg:#070C16;
  --bg-2:#0A1120;
  --bg-3:#0C1526;
  --bg-4:#101C30;
  --primary:#2FE0C8;
  --primary-deep:#1FB9A5;
  --secondary:#5B6CFF;
  --accent:#FF9A5A;
  --text:#E8EEF8;
  --text-2:#9BA9C0;
  --text-3:#66748C;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 24px 56px rgba(0,0,0,.55);
  --pad-section:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:72px 72px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
header,main,footer{position:relative;z-index:1}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,filter .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-primary{
  background:linear-gradient(180deg,#3BEBD3,#1FC6B0);
  color:#04120F;
  box-shadow:0 10px 28px rgba(47,224,200,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 16px 38px rgba(47,224,200,.36)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(47,224,200,.22)}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:rgba(255,255,255,.14);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(47,224,200,.1);border-color:rgba(47,224,200,.42);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:8px 16px;font-size:14px}

/* ============ 玻璃卡 ============ */
.glass{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
}
.glass::before{
  content:"";position:absolute;left:16px;right:16px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.38),transparent);
}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,12,22,.72);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
}
.site-header.is-stuck{
  background:rgba(7,12,22,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-main-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(47,224,200,.28),rgba(91,108,255,.28));
  border:1px solid rgba(47,224,200,.35);
  color:var(--primary);font-size:15px;
}
.brand-text{font-size:17px;font-weight:700;color:var(--text);white-space:nowrap}
.nav-search{
  flex:1 1 auto;max-width:340px;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:6px 6px 6px 16px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search i{color:var(--text-3);font-size:14px}
.nav-search input{
  flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;padding:6px 0;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search:focus-within{border-color:rgba(47,224,200,.55);box-shadow:0 0 0 3px rgba(47,224,200,.12)}
.nav-search button{
  flex:none;border:0;cursor:pointer;border-radius:var(--r-pill);
  padding:7px 16px;font-size:13px;font-weight:600;
  background:rgba(47,224,200,.16);color:var(--primary);
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-search button:hover{background:var(--primary);color:#04120F}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.link-login{font-size:14px;color:var(--text-2);transition:color .2s ease-out}
.link-login:hover{color:var(--primary)}
.nav-toggle{
  display:none;flex:none;width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{color:var(--primary);border-color:rgba(47,224,200,.4)}

.nav-channel{border-top:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:28px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{
  position:relative;font-size:14.5px;color:var(--text-2);white-space:nowrap;
  padding:4px 0;transition:color .2s ease-out;
}
.channel-inner a:hover{color:var(--text)}
.channel-inner a.is-active{color:var(--primary)}
.channel-inner a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-12px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,rgba(47,224,200,0),var(--primary),rgba(47,224,200,0));
}
.nav-hot{border-top:1px solid var(--line);background:rgba(10,17,32,.5)}
.hot-inner{display:flex;align-items:center;gap:10px;height:46px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--text-3);flex:none;letter-spacing:.08em}
.tag{
  flex:none;font-size:12.5px;color:var(--text-2);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:4px 13px;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.tag:hover{color:var(--primary);border-color:rgba(47,224,200,.42);background:rgba(47,224,200,.08)}
.site-header.is-stuck .nav-hot{display:none}
.site-header.is-stuck .nav-main-inner{height:60px}

/* ============ 抽屉导航 ============ */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:200;
  background:rgba(10,17,32,.96);backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  padding:24px 22px;display:flex;flex-direction:column;gap:20px;
  transform:translateX(102%);transition:transform .26s ease-out;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);cursor:pointer}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{padding:12px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--primary)}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,7,12,.62);z-index:190;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 文章头部 ============ */
.article-hero{
  padding:40px 0 44px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(7,12,22,.86),rgba(7,12,22,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-2);transition:color .2s ease-out}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-3)}
.badge-cat{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;color:var(--primary);
  background:rgba(47,224,200,.1);border:1px solid rgba(47,224,200,.34);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:18px;
}
.article-hero h1{
  font-size:38px;font-weight:800;line-height:1.3;letter-spacing:0;
  max-width:900px;margin-bottom:18px;
}
.article-lead{
  max-width:820px;font-size:16px;color:var(--text-2);line-height:1.85;margin-bottom:22px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;
  font-size:13.5px;color:var(--text-3);
}
.article-meta .dot{color:var(--text-3);opacity:.6}
.article-meta strong{color:var(--text-2);font-weight:600}

/* ============ 布局 ============ */
.article-layout{padding:48px 0 8px}
.article-layout .grid-x{align-items:flex-start}
.article-main{min-width:0}
.cover-wrap{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);margin-bottom:36px;position:relative;
}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-wrap::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,12,22,0),rgba(7,12,22,.32));
}

/* ============ 正文排版 ============ */
.article-content{font-size:16px;line-height:1.9;color:#D6DEEE;letter-spacing:.01em}
.article-content p{margin:0 0 1.2em}
.article-content h2{
  font-size:30px;line-height:1.3;color:var(--text);
  margin:48px 0 20px;padding-left:16px;position:relative;scroll-margin-top:120px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(47,224,200,0));
}
.article-content h3{font-size:20px;color:var(--text);margin:34px 0 16px;scroll-margin-top:120px}
.article-content h4{font-size:17px;color:var(--text);margin:24px 0 12px}
.article-content a{color:var(--primary);border-bottom:1px solid rgba(47,224,200,.35);transition:border-color .2s ease-out}
.article-content a:hover{border-bottom-color:var(--primary)}
.article-content blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--glass);border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;color:var(--text-2);font-size:15.5px;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:22px;list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin:7px 0;line-height:1.7}
.article-content img{border-radius:12px;margin:26px auto}
.article-content table{
  width:100%;border-collapse:collapse;margin:26px 0;display:block;overflow-x:auto;white-space:nowrap;
}
.article-content th,.article-content td{
  border:1px solid var(--line);padding:13px 16px;font-size:15px;text-align:left;
}
.article-content th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600}
.article-content pre{
  background:#05090F;border:1px solid var(--line);border-radius:12px;
  padding:18px;overflow-x:auto;margin:26px 0;
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;color:#B8E7DE;
}
.article-content code{
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em;
  background:rgba(255,255,255,.07);padding:2px 6px;border-radius:6px;color:#A7F0E0;
}
.article-content pre code{background:none;padding:0;color:inherit}
.article-content hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-content figcaption{text-align:center;color:var(--text-3);font-size:13.5px;margin-top:-14px}

.empty-state{
  padding:64px 28px;text-align:center;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
}
.empty-state i{font-size:34px;color:var(--primary);opacity:.8}
.empty-state h2{font-size:22px;margin:18px 0 10px}
.empty-state p{color:var(--text-2);font-size:15px;max-width:480px;margin:0 auto 24px}

/* ============ 文末区 ============ */
.article-foot{margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.tag-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag-pill{
  font-size:13px;color:var(--text-2);background:var(--glass);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 15px;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.tag-pill:hover{color:var(--primary);border-color:rgba(47,224,200,.42)}
.share-row{display:flex;align-items:center;gap:12px;margin-bottom:30px;flex-wrap:wrap}
.share-row .share-label{font-size:13.5px;color:var(--text-3)}
.icon-btn{
  width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(47,224,200,.42);transform:translateY(-1px)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:26px}
.post-nav-item{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.post-nav-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(47,224,200,.32)}
.post-nav-label{font-size:12.5px;color:var(--text-3)}
.post-nav-title{font-size:15.5px;font-weight:600;color:var(--text)}
.back-link{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px}
.back-link:hover{color:var(--primary)}

/* ============ 侧栏 ============ */
.sidebar-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{padding:22px}
.side-card h3{
  font-size:14px;letter-spacing:.06em;color:var(--text-3);font-weight:600;
  margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--primary);font-size:13px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto}
.toc-list a{
  display:block;font-size:14px;color:var(--text-2);padding:7px 12px;
  border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:color .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.toc-list a.is-sub{padding-left:24px;font-size:13.5px;color:var(--text-3)}
.toc-list a.is-current{color:var(--primary);border-left-color:var(--primary);background:rgba(47,224,200,.08)}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list a{display:block;font-size:14.5px;color:var(--text-2);line-height:1.7;transition:color .2s ease-out}
.side-list a:hover{color:var(--primary)}
.side-list .side-time{font-size:12.5px;color:var(--text-3);margin-top:4px}
.member-card{padding:24px;text-align:left}
.member-card .mc-title{font-size:17px;font-weight:700;margin-bottom:8px}
.member-card .mc-desc{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.member-card .mc-price{font-size:15px;color:var(--accent);font-weight:700;margin-bottom:16px}
.member-card .mc-price span{font-size:12.5px;color:var(--text-3);font-weight:400}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 8px}
.section-head{margin-bottom:32px}
.section-head .eyebrow{font-size:12.5px;letter-spacing:.14em;color:var(--primary);margin-bottom:10px}
.section-head h2{font-size:30px;font-weight:700}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:620px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
  position:relative;
}
.rel-card::before{
  content:"";position:absolute;left:16px;right:16px;top:0;height:1px;z-index:2;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.38),transparent);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(47,224,200,.3)}
.rel-card .rel-thumb{aspect-ratio:16/10;overflow:hidden}
.rel-card .rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px}
.rel-body .rel-cat{font-size:12px;color:var(--secondary);letter-spacing:.06em;margin-bottom:10px}
.rel-body h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.rel-body p{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body .rel-time{font-size:12.5px;color:var(--text-3);margin-top:14px}

/* ============ 会员窄条 ============ */
.cta-strip{padding:64px 0 88px}
.cta-panel{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 36px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(47,224,200,.1),rgba(91,108,255,.08) 55%,rgba(255,255,255,.03));
  border:1px solid rgba(47,224,200,.24);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 24px 56px rgba(0,0,0,.5);
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;left:24px;right:24px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.5),transparent);
}
.cta-panel h2{font-size:26px;margin-bottom:12px}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px}
.cta-badge{
  font-size:12.5px;color:var(--text-2);border:1px solid var(--line);
  background:rgba(255,255,255,.05);border-radius:var(--r-pill);padding:5px 13px;
}
.cta-actions{display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.cta-note{font-size:12.5px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(10,17,32,.72);
  padding:72px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;margin:18px 0 18px;max-width:340px}
.footer-contact{font-size:13px;color:var(--text-3);line-height:2}
.footer-col h4{font-size:14px;color:var(--text);font-weight:600;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease-out}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:var(--text-3)}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-search{max-width:260px}
  .channel-inner{gap:22px}
}
@media (max-width:960px){
  :root{--pad-section:72px}
  .container{padding:0 24px}
  .nav-search,.nav-actions .link-login{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-actions{margin-left:auto}
  .nav-channel{display:none}
  .nav-main-inner{height:62px}
  .article-hero h1{font-size:30px}
  .sidebar-inner{position:static;top:auto}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:720px){
  .article-hero{padding:28px 0 34px}
  .article-hero h1{font-size:26px}
  .article-lead{font-size:15px}
  .article-content h2{font-size:22px;margin-top:36px}
  .article-content h3{font-size:18px}
  .article-layout{padding-top:32px}
  .rel-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .cta-panel{padding:26px 22px}
  .cta-actions{align-items:flex-start;width:100%}
  .related{padding-top:56px}
  .cta-strip{padding:48px 0 64px}
  .section-head h2{font-size:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:15.5px}
  .article-hero h1{font-size:23px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .nav-search{display:none}
}

/* roulang page: category1 */
:root{
  --bg:#070C16;
  --bg-1:#0A1120;
  --bg-2:#0C1526;
  --bg-3:#101C30;
  --primary:#2FE0C8;
  --primary-soft:rgba(47,224,200,.14);
  --secondary:#5B6CFF;
  --accent:#FF9A5A;
  --text:#E8EEF8;
  --text-2:#9BA9C0;
  --text-3:#66748C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.045);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:20px;
  --pill:999px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-hi:0 24px 56px rgba(0,0,0,.55);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 14% 6%, rgba(47,224,200,.11), transparent 44%),
    radial-gradient(circle at 86% 2%, rgba(91,108,255,.10), transparent 48%),
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size:auto, auto, 72px 72px, 72px 72px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
h1,h2,h3,h4{line-height:1.25;font-weight:800;margin:0;letter-spacing:.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(47,224,200,.28);color:#062A26}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--pill);
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--primary);
  color:#04231F;
  box-shadow:0 8px 26px rgba(47,224,200,.24);
}
.btn-primary:hover{background:#41F0DA;transform:translateY(-1px);box-shadow:0 16px 42px rgba(47,224,200,.36)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(47,224,200,.22)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:rgba(47,224,200,.55);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px}
.btn-lg{height:54px;padding:0 30px;font-size:15.5px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,12,22,.74);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
  transition:background-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{background:rgba(7,12,22,.92);box-shadow:0 14px 34px rgba(0,0,0,.5)}
.nav-main-inner{display:flex;align-items:center;gap:24px;height:74px;transition:height .24s var(--ease)}
.site-header.is-stuck .nav-main-inner{height:62px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(47,224,200,.9),rgba(91,108,255,.85));
  color:#04231F;font-size:15px;
  box-shadow:0 6px 18px rgba(47,224,200,.28);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.nav-search{
  display:flex;align-items:center;
  flex:0 1 340px;
  margin-left:auto;
  height:40px;
  padding:0 6px 0 14px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:rgba(255,255,255,.04);
  transition:border-color .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,224,200,.16);background:rgba(255,255,255,.06)}
.nav-search i{color:var(--text-3);font-size:13px;margin-right:9px}
.nav-search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;color:var(--text);font-size:13.8px;outline:none;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search button{
  height:30px;padding:0 15px;border:0;border-radius:var(--pill);
  background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-search button:hover{background:var(--primary);color:#04231F}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.link-login{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.link-login:hover{color:var(--primary)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text);font-size:15px;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

.nav-channel{border-top:1px solid rgba(255,255,255,.05);transition:height .24s var(--ease)}
.channel-inner{display:flex;align-items:center;gap:30px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.site-header.is-stuck .channel-inner{height:46px}
.channel-inner a{
  position:relative;flex:none;
  font-size:14.5px;color:var(--text-2);font-weight:500;
  padding:6px 0;
  transition:color .2s var(--ease);
}
.channel-inner a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.channel-inner a:hover{color:var(--text)}
.channel-inner a:hover::after{transform:scaleX(1)}
.channel-inner a.is-active{color:var(--primary);font-weight:600}
.channel-inner a.is-active::after{transform:scaleX(1)}

.nav-hot{
  border-top:1px solid rgba(255,255,255,.05);
  max-height:52px;opacity:1;overflow:hidden;
  transition:max-height .26s var(--ease),opacity .2s var(--ease);
}
.site-header.is-stuck .nav-hot{max-height:0;opacity:0}
.hot-inner{display:flex;align-items:center;gap:10px;height:52px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{flex:none;font-size:12px;letter-spacing:.14em;color:var(--text-3)}
.tag{
  flex:none;display:inline-flex;align-items:center;
  height:28px;padding:0 13px;border-radius:var(--pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-2);font-size:12.8px;
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.tag:hover{color:var(--primary);border-color:rgba(47,224,200,.5);background:var(--primary-soft)}

.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(7,12,22,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:22px 22px 40px;
  transform:translateY(-102%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);font-size:16px;cursor:pointer;
}
.drawer-group{margin-bottom:26px}
.drawer-group h4{font-size:12px;letter-spacing:.14em;color:var(--text-3);font-weight:600;margin-bottom:12px}
.drawer-group a{display:block;padding:12px 0;font-size:15.5px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05)}
.drawer-group a:hover{color:var(--primary)}
.drawer-hot{display:flex;flex-wrap:wrap;gap:10px}

/* ============ 分类横幅 ============ */
.cat-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-banner-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;}
.cat-banner-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.82) 46%,rgba(7,12,22,.56) 100%),
    linear-gradient(180deg,rgba(7,12,22,.55) 0%,rgba(7,12,22,.94) 100%);
}
.cat-banner-inner{position:relative;z-index:1;padding:88px 0 84px;max-width:760px}
.crumbs{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:var(--text-2);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs i{font-size:9px;color:var(--text-3)}
.crumbs .current{color:var(--text-3)}
.banner-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--pill);
  background:var(--primary-soft);border:1px solid rgba(47,224,200,.32);
  color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.04em;
  margin-bottom:20px;
}
.cat-banner h1{font-size:38px;font-weight:800;margin:0 0 18px;color:#F2F7FF}
.cat-banner .lede{font-size:16px;color:var(--text-2);max-width:620px;margin:0 0 30px;line-height:1.9}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 板块通用 ============ */
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-1)}
.section--deep{background:var(--bg-2)}
.sec-head{max-width:700px;margin-bottom:44px}
.sec-label{font-size:12.5px;letter-spacing:.16em;color:var(--primary);font-weight:600;margin-bottom:12px}
.sec-title{font-size:30px;font-weight:800;margin:0 0 16px}
.sec-desc{color:var(--text-2);font-size:15.5px;margin:0;line-height:1.9}

/* ============ 玻璃卡 ============ */
.g-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  padding:26px;
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.g-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.38),transparent);
  transition:opacity .22s var(--ease);
}
.g-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hi);border-color:var(--line-strong)}
.g-card:hover::before{opacity:1}

/* 核心要点非等分网格 */
.hl-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.hl-main{grid-column:1 / 2;grid-row:1 / 3;display:flex;flex-direction:column;padding:30px}
.hl-side{display:flex;flex-direction:column;gap:24px}
.hl-icon{
  width:46px;height:46px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(47,224,200,.3);
  color:var(--primary);font-size:19px;margin-bottom:18px;
}
.hl-main h3,.hl-side h3{font-size:19px;margin:0 0 12px}
.hl-text{color:var(--text-2);font-size:15px;margin:0 0 20px}
.hl-mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto}
.mini-chip{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 14px;border-radius:var(--pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:13px;color:var(--text-2);
}
.mini-chip i{font-size:11px;color:var(--primary)}
.hl-list{margin:0;display:flex;flex-direction:column;gap:11px}
.hl-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.6px;color:var(--text-2);line-height:1.75}
.hl-list li i{color:var(--primary);font-size:13px;margin-top:8px;flex:none}

/* ============ 等级卡片 ============ */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.tier-card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  padding:30px 26px;
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.tier-card::before{
  content:"";position:absolute;top:0;left:14%;right:14%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.45),transparent);
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hi);border-color:var(--line-strong)}
.tier-card.is-featured{
  transform:translateY(-8px);
  border-color:rgba(47,224,200,.34);
  background:linear-gradient(180deg,rgba(47,224,200,.08),rgba(255,255,255,.04) 45%);
}
.tier-card.is-featured:hover{transform:translateY(-12px)}
.tier-badge{
  position:absolute;top:-13px;right:22px;
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--pill);
  background:var(--accent);color:#3A1706;
  font-size:12px;font-weight:700;letter-spacing:.03em;
}
.tier-name{font-size:16px;font-weight:700;color:var(--text-2);letter-spacing:.05em;margin-bottom:14px}
.tier-price{display:flex;align-items:baseline;gap:6px;margin-bottom:10px}
.tier-price .num{font-family:Inter,"Barlow",system-ui,sans-serif;font-size:38px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.tier-price .unit{font-size:13.5px;color:var(--text-3)}
.tier-note{font-size:14px;color:var(--text-2);margin:0 0 22px;line-height:1.8}
.tier-divider{height:1px;background:var(--line);margin:0 0 22px}
.tier-benefits{display:flex;flex-direction:column;gap:12px;margin:0 0 28px}
.tier-benefits li{display:flex;gap:10px;align-items:flex-start;font-size:14.6px;color:var(--text-2);line-height:1.7}
.tier-benefits li i{font-size:12.5px;margin-top:7px;flex:none;color:var(--primary)}
.tier-benefits li.is-off{color:var(--text-3)}
.tier-benefits li.is-off i{color:var(--text-3)}
.tier-card .btn{margin-top:auto}

/* ============ 数据对比条 ============ */
.data-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.data-item{padding:32px 26px;border-right:1px solid var(--line);text-align:left}
.data-item:last-child{border-right:0}
.data-num{
  font-family:Inter,"Barlow",system-ui,sans-serif;
  font-size:36px;font-weight:800;line-height:1.1;
  color:var(--primary);font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:6px;
}
.data-num small{font-size:14px;font-weight:600;color:var(--text-3)}
.data-label{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.data-foot{margin-top:20px;font-size:13.5px;color:var(--text-3)}

/* ============ 问答 ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.faq-item{padding:28px 26px}
.faq-q{display:flex;gap:12px;align-items:flex-start;font-size:16.5px;font-weight:700;margin:0 0 12px;color:var(--text)}
.faq-q .idx{font-family:Inter,system-ui,sans-serif;color:var(--primary);font-weight:800;flex:none;font-size:15px;line-height:1.7}
.faq-a{margin:0;color:var(--text-2);font-size:14.8px;line-height:1.9}

/* ============ 交叉链接 ============ */
.cross-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cross-card{
  display:flex;gap:20px;align-items:center;
  padding:22px 24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.cross-card:hover{transform:translateY(-3px);border-color:rgba(47,224,200,.35);box-shadow:var(--shadow-hi)}
.cross-thumb{width:118px;height:86px;border-radius:12px;object-fit:cover;flex:none;border:1px solid var(--line)}
.cross-body h3{font-size:17px;margin:0 0 8px}
.cross-body p{margin:0 0 10px;font-size:14.2px;color:var(--text-2);line-height:1.75}
.cross-more{font-size:13.5px;color:var(--primary);display:inline-flex;align-items:center;gap:7px}
.cross-more i{font-size:11px;transition:transform .2s var(--ease)}
.cross-card:hover .cross-more i{transform:translateX(4px)}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:52px 48px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(115deg,rgba(47,224,200,.12),rgba(91,108,255,.10) 52%,rgba(255,255,255,.03));
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.5),transparent);
}
.cta-copy h2{font-size:28px;margin:0 0 14px}
.cta-copy p{color:var(--text-2);font-size:15px;margin:0 0 20px;max-width:540px}
.cta-chips{display:flex;flex-wrap:wrap;gap:10px}
.cta-chip{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 13px;border-radius:var(--pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:12.8px;color:var(--text-2);
}
.cta-chip i{font-size:11px;color:var(--primary)}
.cta-side{display:flex;flex-direction:column;align-items:flex-start;gap:14px;flex:none}
.cta-fine{font-size:12.8px;color:var(--text-3);max-width:260px;line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-2);font-size:14.4px;max-width:340px;line-height:1.85;margin:0 0 20px}
.footer-contact{font-size:13.4px;color:var(--text-3);line-height:2}
.footer-col h4{font-size:14.5px;font-weight:700;color:var(--text);margin:0 0 18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:26px;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-search{display:none}
  .nav-actions .link-login{display:none}
  .nav-toggle{display:inline-flex}
  .cat-banner-inner{padding:64px 0 60px}
  .cat-banner h1{font-size:30px}
  .sec-title{font-size:24px}
  .hl-grid{grid-template-columns:1fr}
  .hl-main{grid-row:auto;grid-column:auto}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .tier-card.is-featured{transform:none}
  .tier-card.is-featured:hover{transform:translateY(-4px)}
  .data-strip{grid-template-columns:repeat(2,1fr)}
  .data-item:nth-child(2){border-right:0}
  .data-item:nth-child(1),.data-item:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:40px 34px}
  .cta-side{width:100%}
  .cta-fine{max-width:100%}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .nav-main-inner{height:64px;gap:14px}
  .brand-text{font-size:15.5px}
  .cat-banner-inner{padding:52px 0 48px}
  .cat-banner h1{font-size:26px}
  .cat-banner .lede{font-size:15px}
  .banner-actions{flex-direction:column;align-items:stretch}
  .banner-actions .btn{width:100%}
  .sec-title{font-size:22px}
  .hl-grid{gap:18px}
  .hl-side{gap:18px}
  .tier-grid{grid-template-columns:1fr;gap:20px}
  .data-strip{grid-template-columns:1fr}
  .data-item{border-right:0;border-bottom:1px solid var(--line);padding:24px 20px}
  .data-item:last-child{border-bottom:0}
  .faq-grid{grid-template-columns:1fr;gap:18px}
  .cross-grid{grid-template-columns:1fr;gap:18px}
  .cross-card{flex-direction:column;align-items:flex-start}
  .cross-thumb{width:100%;height:150px}
  .cta-panel{padding:32px 22px;gap:26px}
  .cta-copy h2{font-size:22px}
  .cta-side .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}

/* roulang page: category2 */
:root{
  --bg:#070C16;
  --bg-2:#0A1120;
  --bg-3:#0C1526;
  --bg-4:#101C30;
  --primary:#2FE0C8;
  --primary-soft:rgba(47,224,200,.14);
  --primary-line:rgba(47,224,200,.35);
  --indigo:#5B6CFF;
  --indigo-soft:rgba(91,108,255,.16);
  --accent:#FF9A5A;
  --text:#E8EEF8;
  --text-2:#9BA9C0;
  --text-3:#66748C;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --r-s:8px;
  --r-m:16px;
  --r-l:20px;
  --pill:999px;
  --sh-1:0 18px 40px rgba(0,0,0,.45);
  --sh-2:0 24px 56px rgba(0,0,0,.55);
  --container:1240px;
  --t:220ms ease-out;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(720px 420px at 12% -6%, rgba(47,224,200,.10), transparent 70%),
    radial-gradient(640px 460px at 92% 4%, rgba(91,108,255,.10), transparent 72%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.02) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.02) 0 1px, transparent 1px 64px);
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,12,22,.92);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background-color var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{background:rgba(7,12,22,.94);box-shadow:0 12px 32px rgba(0,0,0,.45);}
.nav-main{padding:12px 0;border-bottom:1px solid var(--line);transition:padding var(--t);}
.site-header.is-scrolled .nav-main{padding:8px 0;}
.nav-main-inner{display:flex;align-items:center;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(47,224,200,.24),rgba(91,108,255,.22));
  border:1px solid rgba(47,224,200,.32);
  color:var(--primary);font-size:16px;
  box-shadow:0 8px 20px rgba(47,224,200,.16);
}
.brand-text{font-size:18px;font-weight:800;color:var(--text);white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary);}
.nav-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--pill);
  padding:6px 6px 6px 16px;
}
.nav-search i{color:var(--text-3);font-size:14px;}
.nav-search input{
  flex:1 1 auto;min-width:0;background:transparent;border:0;color:var(--text);
  font-size:14px;line-height:1.6;padding:6px 0;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{outline:none;}
.nav-search:focus-within{border-color:rgba(47,224,200,.55);box-shadow:0 0 0 3px rgba(47,224,200,.14);}
.nav-search button{
  border:0;border-radius:var(--pill);padding:8px 18px;font-size:13px;font-weight:600;
  background:var(--primary);color:#04211C;cursor:pointer;transition:filter var(--t),transform var(--t);
}
.nav-search button:hover{filter:brightness(1.08);transform:translateY(-1px);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.link-login{font-size:14px;color:var(--text-2);}
.link-login:hover{color:var(--primary);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  font-size:16px;cursor:pointer;transition:border-color var(--t),color var(--t);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);border:1px solid transparent;cursor:pointer;
  font-weight:600;font-size:15px;padding:12px 26px;line-height:1.2;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),border-color var(--t),color var(--t),filter var(--t);
}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.btn-primary{
  background:var(--primary);color:#04211C;
  box-shadow:0 0 0 1px rgba(47,224,200,.35),0 10px 28px rgba(47,224,200,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,224,200,.45),0 14px 36px rgba(47,224,200,.36);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,224,200,.35),0 6px 16px rgba(47,224,200,.22);}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:rgba(47,224,200,.5);color:var(--primary);transform:translateY(-1px);}

.nav-channel{padding:0;transition:padding var(--t);}
.channel-inner{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.channel-inner a{
  display:inline-block;padding:14px 0;font-size:15px;color:var(--text-2);
  border-bottom:2px solid transparent;
}
.channel-inner a:hover{color:var(--text);}
.channel-inner a.is-active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600;}

.nav-hot{padding:10px 0 14px;border-top:1px solid var(--line);transition:opacity var(--t);}
.hot-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.hot-label{font-size:12px;color:var(--text-3);letter-spacing:.12em;}
.tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--pill);
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:13px;
  transition:color var(--t),border-color var(--t),background-color var(--t),transform var(--t);
}
.tag:hover{color:var(--primary);border-color:rgba(47,224,200,.5);background:var(--primary-soft);transform:translateY(-1px);}
.site-header.is-scrolled .nav-hot{display:none;}

/* ---------- banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  padding:88px 0 72px;
  background-image:
    linear-gradient(100deg, rgba(7,12,22,.95) 0%, rgba(7,12,22,.78) 46%, rgba(7,12,22,.52) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-banner::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.45),transparent);
}
.crumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:var(--text-3);}
.crumb .current{color:var(--text-3);}
.banner-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.9fr);gap:48px;align-items:end;}
.banner-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--pill);
  background:var(--primary-soft);border:1px solid rgba(47,224,200,.35);
  color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.06em;margin-bottom:20px;
}
.crumb{position:relative;z-index:2;}
h1.page-title{
  font-size:38px;font-weight:800;margin-bottom:18px;
  max-width:16em;
}
h1.page-title em{font-style:normal;color:var(--primary);}
.banner-sub{font-size:16.5px;color:var(--text-2);max-width:38em;line-height:1.9;}
.banner-stats{
  display:flex;gap:40px;flex-wrap:wrap;margin-top:36px;
  padding-top:28px;border-top:1px solid var(--line);
}
.stat-num{
  font-family:Inter,"Barlow",system-ui,sans-serif;
  font-size:30px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-label{font-size:13.5px;color:var(--text-2);margin-top:6px;}

.banner-card{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:26px 24px;
  box-shadow:var(--sh-1);
}
.banner-card::before{
  content:"";position:absolute;top:0;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary-line),transparent);
}
.banner-card h3{font-size:17px;margin-bottom:16px;}
.rhythm-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--text-2);line-height:1.7;
}
.rhythm-list li:last-child{border-bottom:0;padding-bottom:0;}
.rhythm-list i{color:var(--primary);margin-top:5px;font-size:13px;}

/* ---------- layout: index + list ---------- */
.section{padding:96px 0;position:relative;z-index:1;}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-kicker{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--primary);
  margin-bottom:14px;font-weight:600;
}
.section-head h2{font-size:30px;margin-bottom:16px;}
.section-head p{color:var(--text-2);font-size:16px;}

.topic-layout{display:grid;grid-template-columns:276px minmax(0,1fr);gap:36px;align-items:start;}
.index-card{
  position:sticky;top:104px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-m);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.index-title{font-size:12.5px;letter-spacing:.14em;color:var(--text-3);margin-bottom:14px;}
.index-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--r-s);font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;
}
.index-nav a::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--text-3);flex:0 0 auto;transition:background-color var(--t);
}
.index-nav a:hover{background:rgba(255,255,255,.04);color:var(--text);}
.index-nav a:hover::before{background:var(--primary);}
.index-nav a.is-active{color:var(--primary);border-left-color:var(--primary);background:var(--primary-soft);font-weight:600;}
.index-nav a.is-active::before{background:var(--primary);}
.index-note{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);line-height:1.8;}
.index-note strong{color:var(--text-2);font-weight:600;display:block;margin-bottom:6px;}

.topic-list{display:flex;flex-direction:column;gap:20px;}
.topic-item{
  position:relative;display:grid;grid-template-columns:216px minmax(0,1fr);gap:24px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-m);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.topic-item::before{
  content:"";position:absolute;top:0;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary-line),transparent);
  transition:opacity var(--t);
}
.topic-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,255,255,.14);}
.topic-thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--bg-3);}
.topic-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform 320ms ease-out;}
.topic-item:hover .topic-thumb img{transform:scale(1.03);}
.topic-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-bottom:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--glass-strong);border:1px solid var(--line);color:var(--text-2);
}
.badge-primary{background:var(--primary-soft);border-color:rgba(47,224,200,.35);color:var(--primary);}
.badge-indigo{background:var(--indigo-soft);border-color:rgba(91,108,255,.4);color:#A6B0FF;}
.badge-accent{background:rgba(255,154,90,.14);border-color:rgba(255,154,90,.38);color:var(--accent);}
.topic-item h3{font-size:20px;margin-bottom:10px;}
.topic-item > .topic-body > p{color:var(--text-2);font-size:15px;margin-bottom:14px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);line-height:1.75;padding:4px 0;
}
.check-list i{color:var(--primary);font-size:13px;margin-top:6px;}
.topic-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;}
.link-arrow{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:8px;}
.link-arrow:hover{gap:12px;}
.freq{font-size:13px;color:var(--text-3);}

/* ---------- rhythm strip ---------- */
.strip-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.strip-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-m);
  padding:24px 22px;position:relative;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.strip-card::before{
  content:"";position:absolute;top:0;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary-line),transparent);
}
.strip-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,255,255,.14);}
.strip-num{font-family:Inter,"Barlow",system-ui,sans-serif;font-size:26px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;}
.strip-card h4{font-size:16px;margin:10px 0 8px;}
.strip-card p{font-size:14px;color:var(--text-2);}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.6fr);gap:48px;align-items:start;}
.faq-aside h2{font-size:30px;margin-bottom:16px;}
.faq-aside p{color:var(--text-2);font-size:15.5px;margin-bottom:24px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.is-open{border-color:rgba(47,224,200,.42);box-shadow:0 18px 40px rgba(0,0,0,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;color:var(--text);cursor:pointer;
  padding:20px 22px;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-index{font-family:Inter,"Barlow",system-ui,sans-serif;font-size:13px;color:var(--text-3);flex:0 0 auto;letter-spacing:.06em;}
.faq-q span.q-text{flex:1 1 auto;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:12px;transition:transform var(--t),border-color var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:rgba(47,224,200,.5);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 260ms ease-out;
}
.faq-a-inner{
  padding:0 22px 22px 58px;color:var(--text-2);font-size:15px;line-height:1.9;
  border-top:1px solid transparent;
}
.faq-item.is-open .faq-a-inner{
  border-top:1px solid var(--line);
  padding-top:18px;
  position:relative;
}
.faq-item.is-open .faq-a-inner::before{
  content:"";position:absolute;left:22px;right:22px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.5),transparent);
}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.related-card{
  position:relative;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-m);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card::before{
  content:"";position:absolute;top:0;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary-line),transparent);
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,255,255,.14);}
.related-card h3{font-size:19px;margin:14px 0 10px;}
.related-card p{color:var(--text-2);font-size:14.5px;margin-bottom:18px;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(47,224,200,.10),rgba(91,108,255,.10)),var(--bg-3);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-l);
  padding:44px 40px;
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.9fr);gap:36px;align-items:center;
  box-shadow:var(--sh-1);
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary-line),transparent);
}
.cta-panel h2{font-size:28px;margin-bottom:14px;}
.cta-panel p{color:var(--text-2);font-size:15.5px;margin-bottom:20px;}
.cta-badges{display:flex;gap:10px;flex-wrap:wrap;}
.cta-side{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-side .btn{width:100%;justify-content:center;padding:16px 26px;font-size:16px;box-shadow:0 0 0 1px rgba(47,224,200,.4),0 16px 44px rgba(47,224,200,.34);}
.cta-side small{color:var(--text-3);font-size:13px;line-height:1.8;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-2);border-top:1px solid var(--line);
  padding:72px 0 28px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:40px;}
.footer-brand p{color:var(--text-2);font-size:14.5px;margin:18px 0 0;max-width:26em;}
.footer-contact{margin-top:20px;font-size:13.5px;color:var(--text-3);line-height:2;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom p{margin:0;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .banner-grid{grid-template-columns:1fr;align-items:start;gap:32px;}
  h1.page-title{font-size:30px;}
  .topic-layout{grid-template-columns:1fr;}
  .index-card{position:static;}
  .index-nav{display:flex;flex-wrap:wrap;gap:6px;}
  .index-nav a{border-left:0;border:1px solid var(--line);border-radius:var(--pill);padding:8px 14px;}
  .index-nav a::before{display:none;}
  .index-nav a.is-active{border-color:rgba(47,224,200,.5);}
  .strip-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:900px){
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-actions{display:none;}
  .nav-channel,.nav-hot{display:none;}
  .site-header.is-open .nav-channel,
  .site-header.is-open .nav-hot{display:block;}
  .site-header.is-open .channel-inner{flex-direction:column;align-items:stretch;gap:0;padding:10px 0;}
  .site-header.is-open .channel-inner a{padding:12px 0;border-bottom:1px solid var(--line);}
  .site-header.is-open .channel-inner a.is-active{border-bottom-color:var(--primary);}
  .site-header.is-open .hot-inner{padding:12px 0 4px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .page-banner{padding:56px 0 48px;}
  h1.page-title{font-size:26px;}
  .section-head h2{font-size:22px;}
  .topic-item{grid-template-columns:1fr;padding:16px;gap:16px;}
  .topic-thumb img{aspect-ratio:16/9;}
  .topic-item h3{font-size:18px;}
  .banner-stats{gap:24px;}
  .stat-num{font-size:24px;}
  .strip-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15px;padding:16px;gap:12px;}
  .faq-a-inner{padding:0 16px 18px 16px;}
  .faq-item.is-open .faq-a-inner{padding-top:16px;}
  .faq-item.is-open .faq-a-inner::before{left:16px;right:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-panel{padding:28px 20px;}
  .cta-panel h2{font-size:22px;}
  .brand-text{font-size:16px;}
}