/* roulang page: index */
:root{
  --bg-base:#05080F;
  --bg-elev1:#0A101C;
  --bg-elev2:#101827;
  --bg-sunken:#070C16;
  --glass-fill:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --stroke:rgba(255,255,255,.09);
  --stroke-strong:rgba(255,255,255,.16);
  --brand:#2C7BFF;
  --brand-600:#1A5BE0;
  --brand-glow:rgba(44,123,255,.45);
  --accent:#22E0B8;
  --accent-glow:rgba(34,224,184,.35);
  --warm:#FF8A3D;
  --text1:#EAF0FA;
  --text2:#9FB0C7;
  --text3:#6B7C93;
  --success:#2ED47A;
  --warn:#FFB020;
  --danger:#FF5A6A;
  --r-btn:12px;
  --r-card:18px;
  --r-lg:24px;
  --r-img:14px;
  --r-pill:999px;
  --sh1:0 8px 24px -12px rgba(0,0,0,.6),0 1px 0 rgba(255,255,255,.04);
  --sh-brand:0 0 0 1px rgba(44,123,255,.35),0 16px 40px -16px rgba(44,123,255,.5);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text1);line-height:1.25;font-weight:700;letter-spacing:0}
h1{font-size:44px;line-height:1.18}
h2{font-size:32px;line-height:1.25}
h3{font-size:22px;font-weight:600;line-height:1.35}
h4{font-size:17px;font-weight:600;line-height:1.5}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
strong{color:var(--text1);font-weight:600}
::selection{background:rgba(44,123,255,.35);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:#05080F}
::-webkit-scrollbar-thumb{background:#1A2638;border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:#26364e}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0;position:relative}
.section-alt{background:var(--bg-elev1);border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1;letter-spacing:.04em;
  color:var(--accent);text-transform:uppercase;
  padding:7px 12px;border:1px solid rgba(34,224,184,.28);
  border-radius:var(--r-pill);background:rgba(34,224,184,.06);
  margin-bottom:18px;font-weight:600;
}
.eyebrow-brand{
  color:var(--text1);border-color:var(--stroke-strong);
  background:var(--glass-fill);text-transform:none;letter-spacing:0;font-size:13px;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-head p{margin:12px 0 0;max-width:640px;font-size:15px;color:var(--text2)}
.section-head-right{display:flex;flex-direction:column;align-items:flex-end;gap:14px;flex:0 0 auto}

/* 通用图标 */
.ico{width:16px;height:16px;flex:0 0 auto;stroke:currentColor;stroke-width:1.9;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ico-lg{width:22px;height:22px}
.ico-xl{width:28px;height:28px}
.ico-mark{stroke:none;fill:currentColor;width:18px;height:18px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:all .18s var(--ease);position:relative;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:linear-gradient(180deg,#3D8BFF 0%,var(--brand) 55%,var(--brand-600) 100%);
  color:#fff;box-shadow:var(--sh-brand);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 24px var(--brand-glow),0 18px 36px -18px rgba(44,123,255,.7)}
.btn-ghost{
  background:var(--glass-fill);border-color:var(--stroke-strong);color:var(--text1);
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:rgba(44,123,255,.45);color:#fff;transform:translateY(-1px);box-shadow:var(--sh1)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled],.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--accent);
}
.link-arrow:hover{color:#5df0cf;text-decoration:underline;text-underline-offset:3px}

/* 徽章 / 胶囊 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-accent{color:var(--accent);border:1px solid rgba(34,224,184,.32);background:rgba(34,224,184,.1)}
.badge-warm{color:var(--warm);border:1px solid rgba(255,138,61,.32);background:rgba(255,138,61,.1)}
.badge-brand{color:#8FBBFF;border:1px solid rgba(44,123,255,.35);background:rgba(44,123,255,.12)}
.badge-mute{color:var(--text3);border:1px solid var(--stroke);background:rgba(255,255,255,.03)}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text2);
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
}
.pill-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent-glow);flex:0 0 auto}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--stroke);background:rgba(5,8,15,.9)}
.nav-row{display:flex;align-items:center;gap:26px;height:64px;transition:height .2s var(--ease)}
.site-header.is-scrolled .nav-row{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  color:#04121c;background:linear-gradient(150deg,var(--accent),#4de8ff 60%,var(--brand));
  box-shadow:0 6px 18px -8px var(--accent-glow);
}
.brand-text{font-size:16px;font-weight:700;color:var(--text1);letter-spacing:0;white-space:nowrap}
.brand:hover .brand-text{color:#fff}
.nav-channels{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:64px;padding:0 14px;font-size:15px;color:var(--text2);
  transition:color .18s var(--ease),height .2s var(--ease);white-space:nowrap;
}
.site-header.is-scrolled .nav-link{height:56px}
.nav-link::after{
  content:'';position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.site-header.is-scrolled .nav-link::after{bottom:13px}
.nav-link:hover{color:var(--text1)}
.nav-link.is-active{color:var(--text1);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  color:var(--text2);border:1px solid var(--stroke);background:rgba(255,255,255,.03);
  transition:all .18s var(--ease);
}
.icon-btn:hover{color:var(--text1);border-color:var(--stroke-strong);background:rgba(255,255,255,.06)}
.icon-btn:active{transform:translateY(1px)}
.hot-wrap{position:relative}
.hot-btn{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 14px;
  border-radius:10px;font-size:13px;font-weight:600;color:var(--warm);
  border:1px solid rgba(255,138,61,.3);background:rgba(255,138,61,.08);
  transition:all .18s var(--ease);
}
.hot-btn:hover{background:rgba(255,138,61,.14);border-color:rgba(255,138,61,.5)}
.hot-dot{width:6px;height:6px;border-radius:50%;background:var(--warm);box-shadow:0 0 0 0 rgba(255,138,61,.6);animation:pulse 2.4s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,138,61,.55)}
  70%{box-shadow:0 0 0 8px rgba(255,138,61,0)}
  100%{box-shadow:0 0 0 0 rgba(255,138,61,0)}
}
.hot-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:320px;
  padding:18px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(16,24,39,.96),rgba(10,16,28,.96));
  border:1px solid var(--stroke);box-shadow:var(--sh1);backdrop-filter:blur(18px);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.hot-wrap:hover .hot-panel,.hot-wrap:focus-within .hot-panel{opacity:1;visibility:visible;transform:translateY(0)}
.hot-title{margin:0 0 12px;font-size:13px;color:var(--text3)}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tags a{
  display:inline-flex;height:30px;align-items:center;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;color:var(--text2);
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
}
.hot-tags a:hover{color:var(--text1);border-color:rgba(44,123,255,.45)}
.nav-search{display:none;padding:0 0 14px}
.nav-search.is-open{display:block;animation:fadeDown .2s var(--ease)}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.search-form{
  display:flex;align-items:center;gap:10px;height:46px;padding:0 8px 0 14px;
  border-radius:var(--r-btn);border:1px solid var(--stroke-strong);
  background:var(--bg-sunken);color:var(--text3);
  box-shadow:inset 0 2px 10px rgba(0,0,0,.45);
}
.search-form:focus-within{border-color:rgba(34,224,184,.55);box-shadow:inset 0 2px 10px rgba(0,0,0,.45),0 0 0 4px rgba(34,224,184,.12)}
.search-form input{flex:1 1 auto;min-width:0;background:none;border:0;outline:none;color:var(--text1);font-size:15px}
.search-form input::placeholder{color:var(--text3)}
.nav-trend{
  display:flex;align-items:center;gap:12px;height:40px;
  border-top:1px solid var(--stroke);font-size:13px;color:var(--text3);
  overflow:hidden;white-space:nowrap;
}
.trend-label{color:var(--warm);font-weight:600;flex:0 0 auto}
.nav-trend a{color:var(--text2);flex:0 0 auto}
.nav-trend a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.trend-sep{width:1px;height:12px;background:var(--stroke-strong);flex:0 0 auto}
.nav-burger{display:none}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.7);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s;z-index:200;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:201;
  background:linear-gradient(160deg,rgba(12,18,30,.98),rgba(6,10,18,.99));
  border-left:1px solid var(--stroke);padding:20px;
  transform:translateX(100%);transition:transform .24s var(--ease);
  overflow-y:auto;display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--stroke);padding-top:16px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 12px;border-radius:10px;font-size:16px;color:var(--text2);
}
.drawer-nav a:hover{background:rgba(255,255,255,.04);color:var(--text1)}
.drawer-nav a.is-active{color:var(--text1);font-weight:600;background:rgba(44,123,255,.1);border-left:3px solid var(--accent)}
.drawer-sub{font-size:13px;color:var(--text3);margin:0 0 10px}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--stroke);
  background-image:linear-gradient(180deg,rgba(5,8,15,.84),rgba(5,8,15,.95)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;
  padding-top:72px;padding-bottom:64px;min-height:620px;
}
.hero-copy h1{font-size:44px;line-height:1.2;margin-bottom:20px;letter-spacing:-.01em}
.hero-sub{font-size:17px;color:var(--text2);max-width:460px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative}
.hero-frame{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--stroke-strong);
  background:var(--bg-elev2);
  box-shadow:0 30px 70px -34px rgba(0,0,0,.85),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-frame img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;background:#0E1626}
.hero-frame::after{
  content:'';position:absolute;inset:auto 0 0 0;height:46%;
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.85));
}
.hero-float{
  position:absolute;left:-22px;bottom:-24px;
  display:flex;flex-direction:column;gap:12px;
  width:210px;padding:16px 18px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(16,24,39,.92),rgba(10,16,28,.92));
  border:1px solid rgba(34,224,184,.32);
  box-shadow:0 0 0 1px rgba(34,224,184,.14),0 24px 50px -26px rgba(34,224,184,.5);
  backdrop-filter:blur(18px) saturate(140%);
}
.float-row{display:flex;align-items:baseline;gap:8px}
.float-num{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1}
.float-label{font-size:12px;color:var(--text3)}
.float-divider{height:1px;background:var(--stroke);margin:2px 0}

.hero-stats{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--stroke);
}
.stat{
  padding:26px 20px;display:flex;flex-direction:column;gap:6px;
  border-right:1px solid var(--stroke);
}
.stat:last-child{border-right:0}
.stat-num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-label{font-size:13px;color:var(--text3)}

/* 频道快捷条 */
.quickbar{padding:22px 0;border-bottom:1px solid var(--stroke);background:var(--bg-base)}
.quickbar-inner{display:flex;align-items:center;gap:18px}
.quick-track{
  display:flex;align-items:center;gap:10px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;padding-bottom:2px;
  mask-image:linear-gradient(90deg,#000 88%,transparent);
  -webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);
}
.quick-track::-webkit-scrollbar{display:none}
.quick-chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  border-radius:var(--r-pill);font-size:14px;color:var(--text2);white-space:nowrap;
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
  transition:all .18s var(--ease);
}
.quick-chip:hover{color:var(--text1);border-color:var(--stroke-strong);background:rgba(255,255,255,.06)}
.quick-chip.is-active{color:var(--accent);border-color:rgba(34,224,184,.45);background:rgba(34,224,184,.08)}
.qc-dot{width:5px;height:5px;border-radius:1px;background:currentColor;flex:0 0 auto;opacity:.75}
.quick-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text2);flex:0 0 auto}
.quick-more:hover{color:var(--accent)}

/* 会员权益对比表 */
.compare-wrap{
  border-radius:var(--r-lg);border:1px solid var(--stroke);
  background:var(--bg-elev1);overflow:hidden;box-shadow:var(--sh1);
}
.compare-scroll{overflow-x:auto;scrollbar-width:thin}
.compare{width:100%;min-width:820px;border-collapse:collapse}
.compare th,.compare td{padding:0 20px;height:56px;text-align:center;border-bottom:1px solid var(--stroke);font-size:15px}
.compare thead th{
  height:58px;font-size:16px;font-weight:600;color:var(--text1);
  border-bottom:1px solid var(--stroke-strong);background:rgba(255,255,255,.02);
}
.compare thead th:first-child{text-align:left;color:var(--text3);font-size:13px;font-weight:500}
.compare tbody th{text-align:left;font-size:13px;font-weight:500;color:var(--text3);width:26%}
.compare tbody tr:hover{background:rgba(44,123,255,.06)}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0}
.compare .col-rec{background:rgba(44,123,255,.07);border-left:1px solid rgba(34,224,184,.35);border-right:1px solid rgba(34,224,184,.35)}
.compare thead .col-rec{position:relative;color:#fff}
.rec-flag{
  position:absolute;top:-1px;left:50%;transform:translateX(-50%);
  height:22px;padding:0 12px;border-radius:0 0 8px 8px;
  font-size:12px;font-weight:600;line-height:22px;color:#1A0F05;
  background:linear-gradient(180deg,#FFB07A,var(--warm));
  box-shadow:0 8px 18px -10px rgba(255,138,61,.9);
}
.tier-price{display:block;font-family:var(--font-num);font-size:13px;color:var(--text3);font-weight:500;margin-top:2px}
.cell-yes{color:var(--accent)}
.cell-no{color:var(--text3)}
.compare-foot{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--stroke)}
.compare-foot > div{padding:22px 20px;border-right:1px solid var(--stroke);display:flex;flex-direction:column;gap:12px;align-items:center}
.compare-foot > div:last-child{border-right:0}
.compare-foot .col-rec{background:rgba(44,123,255,.07)}
.compare-foot p{margin:0;font-size:13px;color:var(--text3);text-align:center}

/* 等级亮点 */
.level-grid{display:grid;grid-template-columns:280px minmax(0,1fr);gap:48px;align-items:start}
.level-rail{position:relative;padding-left:8px}
.level-rail::before{
  content:'';position:absolute;left:19px;top:14px;bottom:14px;width:1px;
  background:linear-gradient(180deg,var(--accent),rgba(34,224,184,.05));
}
.level-node{display:flex;gap:16px;padding:18px 0;position:relative}
.level-dot{
  width:23px;height:23px;border-radius:50%;flex:0 0 auto;margin-top:3px;
  border:1px solid rgba(34,224,184,.5);background:var(--bg-base);
  box-shadow:0 0 0 5px rgba(34,224,184,.08);
  display:grid;place-items:center;font-family:var(--font-num);font-size:11px;color:var(--accent);
}
.level-node.is-current .level-dot{background:var(--accent);color:#04121c;box-shadow:0 0 18px var(--accent-glow)}
.level-node h4{margin-bottom:4px}
.level-node p{margin:0;font-size:13px;color:var(--text3)}
.level-cards{display:grid;gap:20px}
.level-card{
  border-radius:var(--r-card);border:1px solid var(--stroke);
  background:var(--glass-fill);padding:26px 28px;
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh1);transition:all .18s var(--ease);
}
.level-card:hover{border-color:rgba(44,123,255,.45);transform:translateY(-2px)}
.level-card.is-current{border-color:rgba(34,224,184,.4);box-shadow:0 0 0 1px rgba(34,224,184,.12),0 22px 48px -28px rgba(34,224,184,.55)}
.level-card-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.level-card-head h3{margin:0}
.level-points{display:grid;gap:10px}
.level-points li{display:flex;gap:10px;font-size:15px;color:var(--text2)}
.level-points li::before{content:'';width:14px;height:2px;background:var(--accent);border-radius:2px;margin-top:12px;flex:0 0 auto}
.level-cards .level-card:nth-child(2){margin-left:20px}
.level-cards .level-card:nth-child(3){margin-left:40px}

/* 专属内容预览 */
.preview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.preview-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--stroke);background:var(--bg-elev1);
  transition:all .18s var(--ease);display:flex;flex-direction:column;
}
.preview-card:hover{transform:translateY(-3px);border-color:rgba(44,123,255,.45);box-shadow:0 24px 48px -28px rgba(0,0,0,.9)}
.preview-media{position:relative}
.preview-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#0E1626}
.preview-media::after{content:'';position:absolute;inset:auto 0 0 0;height:60%;background:linear-gradient(180deg,transparent,rgba(10,16,28,.95))}
.lock-badge{
  position:absolute;top:12px;right:12px;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;color:var(--text2);
  background:rgba(5,8,15,.68);border:1px solid var(--stroke-strong);
  backdrop-filter:blur(8px);transition:all .18s var(--ease);
}
.preview-card:hover .lock-badge{color:var(--accent);border-color:rgba(34,224,184,.5);box-shadow:0 0 16px var(--accent-glow)}
.exclusive-tag{
  position:absolute;top:12px;left:12px;height:22px;padding:0 9px;border-radius:var(--r-pill);
  font-size:11px;font-weight:600;line-height:22px;color:#1A0F05;
  background:linear-gradient(180deg,#FFB07A,var(--warm));
}
.preview-body{padding:18px 18px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.preview-body h4{margin:0;font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.preview-body p{margin:0;font-size:13px;color:var(--text3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1 1 auto}
.preview-cta{font-size:13px;color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:6px}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:28px;align-items:start}
.news-feature{
  display:grid;grid-template-columns:40% minmax(0,1fr);
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke);
  background:var(--bg-elev1);transition:all .18s var(--ease);
}
.news-feature:hover{border-color:rgba(44,123,255,.45);transform:translateY(-2px);box-shadow:0 24px 48px -30px rgba(0,0,0,.9)}
.news-feature-media{position:relative;min-height:100%}
.news-feature-media img{width:100%;height:100%;object-fit:cover;background:#0E1626}
.news-feature-media::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent 55%,rgba(10,16,28,.7))}
.news-feature-body{padding:26px 26px 24px;display:flex;flex-direction:column;gap:14px}
.news-feature-body h3{font-size:20px;line-height:1.45;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-body p{margin:0;font-size:14px;color:var(--text2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text3);margin-top:auto}
.dot{width:3px;height:3px;border-radius:50%;background:var(--text3);opacity:.6}
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.news-item{
  display:flex;flex-direction:column;gap:10px;padding:20px;
  border-radius:var(--r-card);border:1px solid var(--stroke);
  background:var(--glass-fill);backdrop-filter:blur(14px);
  transition:all .18s var(--ease);height:100%;
}
.news-item:hover{border-color:rgba(44,123,255,.45);transform:translateY(-2px);box-shadow:var(--sh1)}
.news-item h4{margin:0;font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{margin:0;font-size:14px;color:var(--text2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .meta{margin-top:auto}
.read-more{font-size:13px;color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.news-item:hover .read-more{text-decoration:underline;text-underline-offset:3px}

.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:64px 24px;border-radius:var(--r-lg);
  border:1px dashed var(--stroke-strong);background:rgba(255,255,255,.015);
  text-align:center;
}
.empty-icon{
  width:80px;height:80px;border-radius:24px;display:grid;place-items:center;
  color:var(--text3);border:1px solid var(--stroke);background:rgba(255,255,255,.02);
}
.empty-state p{margin:0;font-size:15px;color:var(--text3)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:340px minmax(0,1fr);gap:56px;align-items:start}
.faq-aside{position:sticky;top:120px}
.faq-aside p{font-size:15px;color:var(--text2)}
.faq-contact{
  margin-top:22px;padding:20px;border-radius:var(--r-card);
  border:1px solid var(--stroke);background:var(--glass-fill);
  backdrop-filter:blur(14px);
}
.faq-contact p{margin:0 0 12px;font-size:13px;color:var(--text3)}
.faq-list{border-top:1px solid var(--stroke)}
.faq-item{border-bottom:1px solid var(--stroke);transition:background .18s var(--ease)}
.faq-item:hover{background:rgba(255,255,255,.03)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 18px 20px 14px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text1);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:'';position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--accent);border-radius:2px;transform:scaleY(0);transform-origin:center;
  transition:transform .18s var(--ease);
}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item summary .ico{color:var(--text3);transition:transform .18s var(--ease),color .18s var(--ease)}
.faq-item[open] summary .ico{transform:rotate(45deg);color:var(--accent)}
.faq-body{padding:0 46px 22px 14px;font-size:15px;line-height:1.8;color:var(--text2)}
.faq-body p{margin:0}

/* CTA */
.cta-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--stroke-strong);
  box-shadow:0 40px 90px -50px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(120deg,rgba(5,8,15,.94),rgba(5,8,15,.86)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cta-bg::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(120% 90% at 88% 12%,rgba(44,123,255,.22),transparent 60%),
             radial-gradient(80% 70% at 5% 100%,rgba(34,224,184,.14),transparent 60%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;padding:52px 48px;align-items:center}
.cta-copy h2{font-size:28px;margin-bottom:14px}
.cta-copy > p{font-size:15px;color:var(--text2);margin-bottom:22px;max-width:440px}
.cta-points{display:grid;gap:10px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text2)}
.cta-points li::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent-glow);flex:0 0 auto}
.cta-form{
  padding:26px;border-radius:var(--r-card);
  border:1px solid var(--stroke-strong);background:rgba(10,16,28,.72);
  backdrop-filter:blur(18px) saturate(140%);
  display:flex;flex-direction:column;gap:12px;
}
.field-label{font-size:13px;color:var(--text3)}
.field{
  height:44px;width:100%;padding:0 14px;border-radius:var(--r-btn);
  background:var(--bg-sunken);border:1px solid var(--stroke);
  color:var(--text1);outline:none;font-size:15px;
  box-shadow:inset 0 2px 8px rgba(0,0,0,.5);
  transition:all .18s var(--ease);
}
.field::placeholder{color:var(--text3)}
.field:focus{border-color:rgba(34,224,184,.6);box-shadow:inset 0 2px 8px rgba(0,0,0,.5),0 0 0 3px rgba(34,224,184,.14)}
.cta-form .btn{margin-top:4px}
.field-note{margin:0;font-size:12px;color:var(--text3);line-height:1.7}
.field-note a{color:var(--accent)}
.field-note a:hover{text-decoration:underline;text-underline-offset:3px}

/* 页脚 */
.site-footer{background:var(--bg-elev1);border-top:1px solid var(--stroke);box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text3);max-width:300px}
.footer-meta{margin-top:16px;font-size:13px;color:var(--text3);display:flex;flex-direction:column;gap:6px}
.footer-col h4{font-size:14px;color:var(--text1);margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--text2)}
.footer-col a:hover{color:var(--accent)}
.qr-box{
  display:flex;gap:14px;align-items:center;padding:14px;border-radius:var(--r-card);
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
}
.qr-img{
  width:72px;height:72px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(150deg,rgba(34,224,184,.25),rgba(44,123,255,.25));
  border:1px solid var(--stroke-strong);display:grid;place-items:center;
  color:var(--text2);font-size:11px;text-align:center;line-height:1.4;
}
.qr-text p{margin:0;font-size:13px;color:var(--text2)}
.qr-text span{font-size:12px;color:var(--text3)}
.footer-bottom{
  border-top:1px solid var(--stroke);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:13px;color:var(--text3);flex-wrap:wrap;
}
.footer-bottom a{color:var(--text3)}
.footer-bottom a:hover{color:var(--accent)}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* 响应式 */
@media (max-width:1279px){
  h1,.hero-copy h1{font-size:38px}
  .container{max-width:1140px}
  .nav-link{padding:0 11px;font-size:14px}
  .preview-grid{grid-template-columns:repeat(3,1fr)}
  .level-grid{grid-template-columns:240px minmax(0,1fr);gap:36px}
}

@media (max-width:1023px){
  .section{padding:64px 0}
  .container{padding:0 20px}
  .nav-channels{display:none}
  .nav-burger{display:grid}
  .nav-trend{display:none}
  .hot-wrap{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px;min-height:0;padding-top:52px;padding-bottom:44px}
  .hero-sub{max-width:none}
  .hero-float{left:auto;right:16px;bottom:-18px;width:190px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--stroke)}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
  .news-grid{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr 1fr}
  .level-grid{grid-template-columns:1fr;gap:32px}
  .level-cards .level-card:nth-child(2),
  .level-cards .level-card:nth-child(3){margin-left:0}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-grid{grid-template-columns:1fr;gap:32px;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px}
}

@media (max-width:767px){
  h1,.hero-copy h1{font-size:28px;line-height:1.28}
  h2{font-size:24px}
  h3{font-size:19px}
  .section{padding:48px 0}
  .container{padding:0 16px}
  .nav-row{height:56px;gap:14px}
  .site-header.is-scrolled .nav-row{height:52px}
  .brand-text{font-size:14px;max-width:190px;overflow:hidden;text-overflow:ellipsis}
  .brand-mark{width:30px;height:30px;border-radius:9px}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .btn-sm{height:36px;padding:0 13px}
  .hero-float{display:none}
  .hero-frame img{aspect-ratio:4/3}
  .hero-cta .btn{flex:1 1 auto;min-width:150px}
  .hero-tags .pill{height:30px;font-size:12px;padding:0 11px}
  .stat{padding:18px 14px}
  .stat-num{font-size:22px}
  .quickbar-inner{gap:12px}
  .preview-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .news-list{grid-template-columns:1fr}
  .news-feature{grid-template-columns:1fr}
  .news-feature-media img{aspect-ratio:16/9}
  .section-head{flex-direction:column;align-items:flex-start;gap:20px;margin-bottom:28px}
  .section-head-right{align-items:flex-start;width:100%}
  .compare{min-width:680px}
  .compare th,.compare td{padding:0 14px}
  .compare-foot{grid-template-columns:1fr}
  .compare-foot > div{border-right:0;border-bottom:1px solid var(--stroke)}
  .compare-foot > div:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-copy h2{font-size:22px}
  .cta-grid{padding:32px 20px;gap:26px}
  .faq-item summary{padding:18px 12px 18px 14px;font-size:15px}
  .faq-body{padding:0 18px 20px 14px;font-size:14.5px}
}

@media (max-width:479px){
  .preview-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr}
  .stat{border-right:0}
  .stat:nth-child(3){border-bottom:1px solid var(--stroke)}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg-base:#05080F;
  --bg-elev1:#0A101C;
  --bg-elev2:#101827;
  --bg-sunken:#070C16;
  --glass-fill:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --stroke:rgba(255,255,255,.09);
  --stroke-strong:rgba(255,255,255,.16);
  --brand:#2C7BFF;
  --brand-600:#1A5BE0;
  --brand-glow:rgba(44,123,255,.45);
  --accent:#22E0B8;
  --accent-glow:rgba(34,224,184,.35);
  --warm:#FF8A3D;
  --text1:#EAF0FA;
  --text2:#9FB0C7;
  --text3:#6B7C93;
  --success:#2ED47A;
  --warn:#FFB020;
  --danger:#FF5A6A;
  --r-btn:12px;
  --r-card:18px;
  --r-lg:24px;
  --r-img:14px;
  --r-pill:999px;
  --sh1:0 8px 24px -12px rgba(0,0,0,.6),0 1px 0 rgba(255,255,255,.04);
  --sh-brand:0 0 0 1px rgba(44,123,255,.35),0 16px 40px -16px rgba(44,123,255,.5);
  --t:180ms cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{color:var(--text1);font-weight:700;letter-spacing:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(44,123,255,.35);color:#fff;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:var(--bg-sunken);}
::-webkit-scrollbar-thumb{background:#1A2638;border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:#243449;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-cat{max-width:1140px;}
section{scroll-margin-top:120px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),filter var(--t);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,#3D8AFF,#1A5BE0);
  color:#fff;
  box-shadow:0 0 0 1px rgba(44,123,255,.35),0 14px 32px -16px rgba(44,123,255,.65);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 24px var(--brand-glow),0 16px 36px -16px rgba(44,123,255,.7);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--stroke-strong);
  color:var(--text1);
}
.btn-ghost:hover{border-color:rgba(44,123,255,.55);background:rgba(44,123,255,.08);color:var(--text1);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:10px;}
.btn-lg{padding:16px 30px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}

/* ---------- badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:16px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);color:var(--text2);
  background:rgba(255,255,255,.03);
}
.badge-accent{border-color:rgba(34,224,184,.4);background:rgba(34,224,184,.1);color:var(--accent);}
.badge-warm{border-color:rgba(255,138,61,.42);background:rgba(255,138,61,.12);color:var(--warm);}
.badge-brand{border-color:rgba(44,123,255,.42);background:rgba(44,123,255,.12);color:#7FB0FF;}

.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
  font-size:13px;font-weight:600;color:var(--text2);
  transition:all var(--t);white-space:nowrap;
}
.chip:hover{border-color:var(--stroke-strong);color:var(--text1);background:rgba(255,255,255,.06);}
.chip.is-active{border-color:rgba(34,224,184,.55);color:var(--accent);background:rgba(34,224,184,.09);box-shadow:0 0 18px -6px var(--accent-glow);}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent-glow);}

/* ---------- glass card ---------- */
.glass{
  position:relative;
  background:var(--glass-fill),var(--bg-elev1);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--sh1);
  overflow:hidden;
}
.glass::before{
  content:"";position:absolute;inset:0 0 auto 0;height:40%;
  background:linear-gradient(180deg,rgba(255,255,255,.08),transparent);
  pointer-events:none;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(5,8,15,.86);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--stroke);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
}
.nav-row{
  display:flex;align-items:center;gap:24px;
  height:64px;
  transition:height var(--t);
}
.site-header.is-scrolled .nav-row{height:56px;}

.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(44,123,255,.35),rgba(34,224,184,.18));
  border:1px solid rgba(44,123,255,.45);
  box-shadow:0 0 18px -6px var(--brand-glow);
}
.ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.ico-mark{width:19px;height:19px;fill:var(--accent);stroke:none;}
.brand-text{
  font-size:16px;font-weight:700;color:var(--text1);
  letter-spacing:.2px;white-space:nowrap;
}
.brand:hover .brand-text{color:var(--accent);}

.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  padding:10px 12px;border-radius:8px;
  font-size:14px;font-weight:600;color:var(--text2);
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--text1);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--text1);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--accent);box-shadow:0 0 10px var(--accent-glow);
}

.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--stroke);color:var(--text2);background:rgba(255,255,255,.03);
  transition:all var(--t);
}
.icon-btn:hover{color:var(--text1);border-color:var(--stroke-strong);background:rgba(255,255,255,.07);}
.icon-btn[aria-expanded="true"]{color:var(--accent);border-color:rgba(34,224,184,.5);}

.hot-wrap{position:relative;}
.hot-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--warm);
  border:1px solid rgba(255,138,61,.4);background:rgba(255,138,61,.09);
  transition:all var(--t);
}
.hot-btn:hover{background:rgba(255,138,61,.16);}
.hot-dot{width:6px;height:6px;border-radius:50%;background:var(--warm);box-shadow:0 0 8px rgba(255,138,61,.9);animation:pulse 2.4s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.8);}}
.hot-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:320px;
  padding:18px;border-radius:var(--r-card);
  background:var(--glass-fill),var(--bg-elev2);
  border:1px solid var(--stroke-strong);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 24px 50px -24px rgba(0,0,0,.9);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:all var(--t);
}
.hot-wrap:hover .hot-panel,.hot-wrap:focus-within .hot-panel{opacity:1;visibility:visible;transform:translateY(0);}
.hot-title{font-size:12px;color:var(--text3);margin-bottom:12px;letter-spacing:.06em;}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;}
.hot-tags a{
  font-size:13px;padding:6px 12px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);color:var(--text2);
}
.hot-tags a:hover{border-color:rgba(34,224,184,.5);color:var(--accent);background:rgba(34,224,184,.08);}

.nav-burger{display:none;margin-left:auto;}

.nav-search{
  display:none;
  padding:0 0 14px;
}
.nav-search.is-open{display:block;}
.search-form{
  display:flex;align-items:center;gap:10px;
  padding:8px 8px 8px 16px;border-radius:var(--r-pill);
  background:var(--bg-sunken);border:1px solid var(--stroke);
  box-shadow:inset 0 1px 0 rgba(0,0,0,.6);
}
.search-form .ico{color:var(--text3);flex-shrink:0;}
.search-form input{
  flex:1;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--text1);min-width:0;
}
.search-form input::placeholder{color:var(--text3);}
.search-form:focus-within{border-color:rgba(34,224,184,.55);box-shadow:0 0 0 3px rgba(34,224,184,.12);}

.nav-trend{
  display:flex;align-items:center;gap:16px;flex-wrap:nowrap;overflow-x:auto;
  height:40px;border-top:1px solid rgba(255,255,255,.05);
  font-size:13px;color:var(--text3);
  scrollbar-width:none;
}
.nav-trend::-webkit-scrollbar{display:none;}
.nav-trend a{white-space:nowrap;color:var(--text3);border-bottom:1px solid transparent;padding-bottom:2px;}
.nav-trend a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.nav-trend .trend-sep{width:1px;height:12px;background:var(--stroke-strong);flex-shrink:0;}

/* mobile drawer */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;
  background:rgba(5,8,15,.96);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  padding:24px;
  transform:translateX(100%);opacity:0;visibility:hidden;
  transition:transform 240ms cubic-bezier(.4,0,.2,1),opacity 240ms;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:28px;}
.drawer-links a{
  padding:14px 4px;font-size:16px;font-weight:600;color:var(--text1);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-links a.is-active{color:var(--accent);}
.drawer-sub{font-size:12px;color:var(--text3);margin-bottom:12px;letter-spacing:.06em;}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;}
.drawer-hot a{font-size:13px;padding:7px 13px;border-radius:var(--r-pill);border:1px solid var(--stroke);color:var(--text2);}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:40px 0 56px;
  background-image:linear-gradient(rgba(5,8,15,.85),rgba(5,8,15,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--stroke);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 30% 20%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000,transparent 72%);
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text3);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--text3);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#39506E;}
.crumb .current{color:var(--text2);}

.hero-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:40px;align-items:end;}
.hero-main h1{
  font-size:34px;line-height:1.32;font-weight:700;margin:16px 0 16px;
  letter-spacing:0;
}
.hero-main h1 em{font-style:normal;color:var(--accent);}
.hero-desc{font-size:16px;line-height:1.8;color:var(--text2);max-width:56ch;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;}

.hero-side{padding:24px;border-radius:var(--r-lg);}
.hero-side .side-label{font-size:12px;color:var(--text3);letter-spacing:.08em;margin-bottom:16px;}
.side-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px 16px;}
.side-stat .num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.1;}
.side-stat .num small{font-size:13px;font-weight:600;color:var(--text3);margin-left:2px;}
.side-stat .lbl{font-size:13px;color:var(--text3);margin-top:6px;}
.side-update{
  margin-top:22px;padding-top:16px;border-top:1px solid var(--stroke);
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text2);
}
.side-update .dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 10px rgba(46,212,122,.8);}

/* ---------- filter row ---------- */
.filter-bar{
  position:sticky;top:104px;z-index:30;
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--stroke);
}
.filter-inner{
  display:flex;align-items:center;gap:12px;
  padding:14px 0;overflow-x:auto;scrollbar-width:none;
}
.filter-inner::-webkit-scrollbar{display:none;}
.filter-inner .chip{flex-shrink:0;}
.filter-right{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0;}
.sort-toggle{display:inline-flex;border:1px solid var(--stroke);border-radius:var(--r-pill);overflow:hidden;background:rgba(255,255,255,.03);}
.sort-toggle button{
  padding:8px 15px;font-size:13px;font-weight:600;color:var(--text3);transition:all var(--t);
}
.sort-toggle button.is-active{background:rgba(44,123,255,.16);color:#9CC4FF;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--text3);margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);box-shadow:0 0 8px var(--accent-glow);}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;}
.section-head p{margin-top:12px;font-size:15px;color:var(--text2);max-width:62ch;}

/* metrics strip */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke);
}
.metric-item{
  padding:28px 24px;border-right:1px solid var(--stroke);
  transition:background var(--t);
}
.metric-item:last-child{border-right:0;}
.metric-item:hover{background:rgba(255,255,255,.025);}
.metric-item .num{
  font-family:var(--font-num);font-size:28px;font-weight:700;
  color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.1;
}
.metric-item .num small{font-size:14px;color:var(--text3);margin-left:2px;font-weight:600;}
.metric-item h3{font-size:15px;margin:10px 0 6px;font-weight:600;}
.metric-item p{font-size:13px;line-height:1.7;color:var(--text3);}

/* staggered cards */
.stagger-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.stagger-grid > *:nth-child(2){margin-top:32px;}
.stagger-grid > *:nth-child(3){margin-top:12px;}

.topic-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--stroke);background:var(--bg-elev1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.topic-card:hover{transform:translateY(-4px);border-color:rgba(44,123,255,.45);box-shadow:0 22px 44px -26px rgba(44,123,255,.55);}
.topic-thumb{position:relative;aspect-ratio:16/10;background:#0E1626;overflow:hidden;}
.topic-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 400ms ease;}
.topic-card:hover .topic-thumb img{transform:scale(1.04);}
.topic-thumb::after{
  content:"";position:absolute;inset:auto 0 0 0;height:56%;
  background:linear-gradient(180deg,transparent,rgba(10,16,28,.96));
}
.topic-thumb .tag-pos{position:absolute;top:14px;left:14px;z-index:2;}
.topic-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.topic-body h3{font-size:20px;line-height:1.4;font-weight:600;}
.topic-body p{font-size:14px;line-height:1.75;color:var(--text2);}
.topic-points{display:flex;flex-direction:column;gap:8px;margin-top:2px;}
.topic-points li{
  position:relative;padding-left:16px;font-size:13px;color:var(--text2);
}
.topic-points li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:1.5px;
  background:var(--accent);box-shadow:0 0 6px var(--accent-glow);
}
.topic-link{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--stroke);
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--accent);
}
.topic-link:hover{color:#67F0D3;}

/* steps */
.steps-wrap{position:relative;}
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border:1px solid var(--stroke);border-radius:var(--r-lg);
  background:var(--glass-fill),var(--bg-elev1);
  overflow:hidden;
}
.step{
  position:relative;padding:34px 28px;
  border-right:1px solid var(--stroke);
  transition:background var(--t);
}
.step:last-child{border-right:0;}
.step:hover{background:rgba(44,123,255,.05);}
.step .step-no{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--text3);
  letter-spacing:.12em;
}
.step .node{
  width:12px;height:12px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 16px var(--accent-glow);
  margin:16px 0 18px;
}
.step h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step p{font-size:14px;line-height:1.75;color:var(--text2);}

/* split feature block */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--stroke-strong);box-shadow:var(--sh1);}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;}
.split-media::after{content:"";position:absolute;inset:auto 0 0 0;height:40%;background:linear-gradient(180deg,transparent,rgba(5,8,15,.9));}
.float-card{
  position:absolute;right:-18px;bottom:24px;z-index:3;
  padding:16px 20px;border-radius:var(--r-card);
  background:var(--glass-fill),rgba(10,16,28,.92);
  border:1px solid rgba(34,224,184,.4);
  backdrop-filter:blur(14px);
  box-shadow:0 0 0 1px rgba(34,224,184,.18),0 20px 40px -20px rgba(0,0,0,.9);
}
.float-card .num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;}
.float-card .lbl{font-size:12px;color:var(--text3);margin-top:2px;}
.split-list{display:flex;flex-direction:column;gap:18px;margin-top:26px;}
.split-list li{display:flex;gap:14px;}
.split-list .idx{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:13px;font-weight:700;
  color:var(--accent);background:rgba(34,224,184,.1);border:1px solid rgba(34,224,184,.32);
}
.split-list h4{font-size:16px;font-weight:600;margin-bottom:4px;}
.split-list p{font-size:14px;line-height:1.7;color:var(--text2);}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:.85fr 1.35fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:32px;line-height:1.3;}
.faq-aside p{margin-top:14px;font-size:15px;color:var(--text2);max-width:34ch;}
.faq-contact{margin-top:26px;}
.faq-list{border-top:1px solid var(--stroke);}
.faq-item{border-bottom:1px solid var(--stroke);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px 20px 16px;
  font-size:16px;font-weight:600;color:var(--text1);
  position:relative;transition:background var(--t);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--accent);opacity:0;transition:opacity var(--t);
  box-shadow:0 0 10px var(--accent-glow);
}
.faq-item summary:hover{background:rgba(255,255,255,.03);}
.faq-item[open] summary::before{opacity:1;}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--stroke-strong);color:var(--text2);
  font-size:16px;line-height:1;
  transition:transform var(--t),color var(--t),border-color var(--t);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--accent);border-color:rgba(34,224,184,.5);}
.faq-answer{padding:0 44px 22px 16px;font-size:15px;line-height:1.8;color:var(--text2);}

/* CTA */
.cta-band{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--stroke-strong);
  background-image:linear-gradient(rgba(5,8,15,.86),rgba(5,8,15,.93)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  padding:48px 44px;
}
.cta-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;}
.cta-inner h2{font-size:28px;line-height:1.35;}
.cta-inner .cta-desc{margin-top:12px;font-size:15px;color:var(--text2);max-width:40ch;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.cta-points span{
  font-size:13px;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);color:var(--text2);background:rgba(255,255,255,.03);
}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.field{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 16px;border-radius:12px;
  background:var(--bg-sunken);border:1px solid var(--stroke);
  box-shadow:inset 0 1px 0 rgba(0,0,0,.6);
  transition:border-color var(--t),box-shadow var(--t);
}
.field:focus-within{border-color:rgba(34,224,184,.6);box-shadow:0 0 0 3px rgba(34,224,184,.13);}
.field input{flex:1;min-width:0;background:transparent;border:0;outline:none;font-size:14px;color:var(--text1);}
.field input::placeholder{color:var(--text3);}
.cta-note{font-size:12px;color:var(--text3);line-height:1.7;}
.cta-note a{color:var(--text2);text-decoration:underline;text-underline-offset:3px;}

/* related pills */
.related-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:26px 0;border-top:1px solid var(--stroke);
}
.related-row .lbl{font-size:13px;color:var(--text3);}
.pill-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
  font-size:14px;font-weight:600;color:var(--text1);
  transition:all var(--t);
}
.pill-link:hover{border-color:rgba(34,224,184,.5);color:var(--accent);background:rgba(34,224,184,.08);transform:translateY(-1px);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:0;
  border-top:1px solid var(--stroke);
  background:var(--bg-elev1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text2);max-width:38ch;}
.footer-meta{margin-top:18px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text3);}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text1);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text2);}
.footer-col a:hover{color:var(--accent);}
.qr-box{display:flex;gap:14px;align-items:center;}
.qr-img{
  width:88px;height:88px;flex-shrink:0;border-radius:14px;
  border:1px solid var(--stroke);background:var(--bg-elev2);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.5;color:var(--text3);
}
.qr-text p{font-size:14px;color:var(--text2);margin-bottom:6px;}
.qr-text span{font-size:12px;color:var(--text3);}
.footer-bottom{
  margin-top:52px;padding:20px 0;
  border-top:1px solid var(--stroke);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text3);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero-main h1{font-size:32px;}
}
@media (max-width:1023px){
  .nav-channels{display:none;}
  .nav-trend{display:none;}
  .nav-burger{display:inline-flex;}
  .nav-tools{margin-left:auto;}
  .hot-wrap{display:none;}
  .filter-bar{top:56px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
  .hero-main h1{font-size:28px;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .section-head h2{font-size:26px;}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .metric-item:nth-child(2){border-right:0;}
  .metric-item:nth-child(1),.metric-item:nth-child(2){border-bottom:1px solid var(--stroke);}
  .stagger-grid{grid-template-columns:repeat(2,1fr);}
  .stagger-grid > *:nth-child(2){margin-top:24px;}
  .stagger-grid > *:nth-child(3){margin-top:0;}
  .steps{grid-template-columns:1fr;}
  .step{border-right:0;border-bottom:1px solid var(--stroke);}
  .step:last-child{border-bottom:0;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media{margin-right:18px;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .faq-aside h2{font-size:26px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-row{height:56px;}
  .brand-text{font-size:15px;}
  .cat-hero{padding:28px 0 40px;}
  .hero-main h1{font-size:24px;}
  .hero-desc{font-size:15px;}
  .hero-actions .btn{flex:1 1 auto;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .section-head h2{font-size:22px;}
  .section-head{margin-bottom:28px;}
  .metric-strip{grid-template-columns:1fr;}
  .metric-item{border-right:0;border-bottom:1px solid var(--stroke);padding:22px 4px;}
  .metric-item:last-child{border-bottom:0;}
  .stagger-grid{grid-template-columns:1fr;}
  .stagger-grid > *{margin-top:0 !important;}
  .float-card{display:none;}
  .split-media{margin-right:0;}
  .faq-item summary{font-size:15px;padding:18px 4px 18px 14px;}
  .faq-answer{padding:0 20px 20px 14px;font-size:14px;}
  .cta-inner h2{font-size:22px;}
  .cta-band{padding:28px 20px;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .filter-bar{top:56px;}
  .related-row{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .hero-main h1{font-size:22px;}
  .side-stats{grid-template-columns:1fr 1fr;}
  .side-stat .num{font-size:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
/* ============ 设计令牌 ============ */
:root{
  --bg-base:#05080F;
  --bg-elev1:#0A101C;
  --bg-elev2:#101827;
  --bg-sunken:#070C16;
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --stroke:rgba(255,255,255,.09);
  --stroke-strong:rgba(255,255,255,.16);
  --brand:#2C7BFF;
  --brand-600:#1A5BE0;
  --brand-glow:rgba(44,123,255,.45);
  --accent:#22E0B8;
  --accent-glow:rgba(34,224,184,.35);
  --warm:#FF8A3D;
  --text1:#EAF0FA;
  --text2:#9FB0C7;
  --text3:#6B7C93;
  --success:#2ED47A;
  --warn:#FFB020;
  --danger:#FF5A6A;
  --r-btn:12px;
  --r-card:18px;
  --r-lg:24px;
  --r-img:14px;
  --sh1:0 8px 24px -12px rgba(0,0,0,.6),0 1px 0 rgba(255,255,255,.04);
  --sh-brand:0 0 0 1px rgba(44,123,255,.35),0 16px 40px -16px rgba(44,123,255,.5);
  --t:180ms cubic-bezier(.4,0,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --num:"Inter","Barlow",ui-monospace,SFMono-Regular,monospace;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg-base);color:var(--text2);
  font-family:var(--font);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;background:#0E1626}
a{color:inherit;text-decoration:none;transition:color var(--t)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--text1);font-weight:600;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(44,123,255,.35);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg-base)}
::-webkit-scrollbar-thumb{background:#1A2638;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:#233348}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),height var(--t);
}
.site-header.is-compact{background:rgba(5,8,15,.88);border-bottom-color:var(--stroke)}
.nav-row{display:flex;align-items:center;gap:24px;height:64px;transition:height var(--t)}
.site-header.is-compact .nav-row{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;color:#03121B;
  background:linear-gradient(145deg,var(--accent),var(--brand));
  box-shadow:0 0 0 1px rgba(34,224,184,.35),0 8px 20px -10px var(--brand-glow);
}
.ico-mark{width:20px;height:20px;fill:currentColor;stroke:none}
.brand-text{font-size:16px;font-weight:700;color:var(--text1);letter-spacing:.2px;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:22px;margin-left:6px}
.nav-link{position:relative;font-size:14.5px;color:var(--text2);padding:6px 0;white-space:nowrap}
.nav-link:hover{color:var(--text1)}
.nav-link.is-active{color:var(--text1);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px var(--accent-glow)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--stroke);background:var(--glass);color:var(--text2);
  transition:color var(--t),border-color var(--t),transform var(--t);
}
.icon-btn:hover{color:var(--text1);border-color:var(--stroke-strong)}
.icon-btn:active{transform:translateY(1px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),filter var(--t),border-color var(--t),background var(--t);
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{
  color:#fff;background:linear-gradient(180deg,#3E8BFF,var(--brand-600));
  box-shadow:var(--sh-brand);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 24px var(--brand-glow),0 0 0 1px rgba(44,123,255,.5)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--text1);background:var(--glass);border:1px solid var(--stroke-strong);
}
.btn-ghost:hover{border-color:rgba(34,224,184,.45);color:#fff}
.btn-block{width:100%}
.hot-wrap{position:relative}
.hot-btn{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 14px;
  border-radius:999px;font-size:13px;font-weight:600;color:var(--warm);
  border:1px solid rgba(255,138,61,.35);background:rgba(255,138,61,.08);
  transition:background var(--t),border-color var(--t);
}
.hot-btn:hover{background:rgba(255,138,61,.16)}
.hot-dot{width:6px;height:6px;border-radius:50%;background:var(--warm);box-shadow:0 0 8px var(--warm);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.hot-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:320px;padding:16px;
  border-radius:var(--r-card);border:1px solid var(--stroke);background:var(--bg-elev1);
  background-image:var(--glass);box-shadow:var(--sh1);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.hot-wrap:hover .hot-panel,.hot-wrap:focus-within .hot-panel{opacity:1;visibility:visible;transform:none}
.hot-title{font-size:12px;letter-spacing:.08em;color:var(--text3);margin-bottom:10px}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tags a{
  font-size:13px;padding:6px 12px;border-radius:999px;
  border:1px solid var(--stroke);background:var(--bg-elev2);color:var(--text2);
}
.hot-tags a:hover{color:var(--accent);border-color:rgba(34,224,184,.4)}
.nav-search{display:none;padding:0 0 16px}
.nav-search.is-open{display:block}
.search-form{
  display:flex;align-items:center;gap:10px;padding:8px 8px 8px 14px;
  border-radius:12px;border:1px solid var(--stroke);background:var(--bg-sunken);
}
.search-form .ico{color:var(--text3);flex-shrink:0}
.search-form input{flex:1;height:36px;border:0;background:transparent;outline:none;font-size:15px}
.search-form input::placeholder{color:var(--text3)}
.nav-trend{
  display:flex;align-items:center;gap:0;height:40px;font-size:13px;color:var(--text3);
  border-top:1px solid var(--stroke);overflow:hidden;
}
.site-header.is-compact .nav-trend{height:34px}
.trend-label{color:var(--warm);font-weight:600;padding-right:14px;flex-shrink:0}
.nav-trend a{padding:0 14px;color:var(--text2);border-left:1px solid var(--stroke);white-space:nowrap}
.nav-trend a:hover{color:var(--accent)}
.nav-burger{display:none}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;padding:22px 20px;
  background:rgba(5,8,15,.96);backdrop-filter:blur(18px);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity 240ms ease,transform 240ms ease,visibility 240ms ease;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-list{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-list a{padding:14px 4px;font-size:16px;color:var(--text1);border-bottom:1px solid var(--stroke)}
.drawer-list a:hover{color:var(--accent)}
.drawer-sub{font-size:12px;color:var(--text3);margin:18px 0 10px;letter-spacing:.08em}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.drawer-tags a{font-size:13px;padding:7px 12px;border-radius:999px;border:1px solid var(--stroke);color:var(--text2)}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:26px 0 18px;font-size:13px;color:var(--text3)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:rgba(255,255,255,.16)}
.crumbs .cur{color:var(--text2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:48px;padding-bottom:72px}
.article-main{min-width:0}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--stroke)}
.head-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--text2);border:1px solid var(--stroke);background:var(--bg-elev2);
}
.badge-accent{color:var(--accent);border-color:rgba(34,224,184,.4);background:rgba(34,224,184,.1)}
.article-head h1{font-size:34px;line-height:1.35;letter-spacing:0;margin-bottom:16px;color:var(--text1)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22)}
.meta-row strong{color:var(--text2);font-weight:500}
.article-cover{margin:28px 0 8px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:20px;border:1px solid var(--stroke)}

/* 正文 */
.article-content{font-size:17px;line-height:1.85;color:#DCE5F2;padding-top:26px}
.article-content p{margin:0 0 1.4em}
.article-content h2{
  position:relative;margin:40px 0 16px;padding-left:14px;
  font-size:24px;line-height:1.45;color:var(--text1);scroll-margin-top:120px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px var(--accent-glow);
}
.article-content h3{font-size:20px;margin:30px 0 12px;color:var(--text1);scroll-margin-top:120px}
.article-content h4{font-size:17px;margin:22px 0 10px;color:var(--text1)}
.article-content ul,.article-content ol{margin:0 0 1.4em;padding-left:4px}
.article-content li{position:relative;padding-left:20px;margin-bottom:8px}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:2px;
  background:var(--accent);opacity:.85;
}
.article-content ol{counter-reset:olist}
.article-content ol li{counter-increment:olist}
.article-content ol li::before{
  content:counter(olist);position:absolute;left:0;top:0;
  font-size:12px;font-family:var(--num);color:var(--accent);
}
.article-content blockquote{
  margin:0 0 1.4em;padding:16px 20px;border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;background:var(--glass);color:var(--text2);
}
.article-content img{border-radius:var(--r-img);margin:24px auto;border:1px solid var(--stroke)}
.article-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:#6CF3D8}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.4em;display:block;overflow-x:auto}
.article-content th{background:rgba(255,255,255,.05);color:var(--text1);font-weight:600;text-align:left}
.article-content th,.article-content td{border:1px solid var(--stroke);padding:10px 14px;white-space:nowrap}
.article-content tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-content pre{
  background:var(--bg-sunken);border:1px solid var(--stroke);border-radius:var(--r-img);
  padding:16px;overflow-x:auto;font-family:var(--num);font-size:14px;line-height:1.7;margin:0 0 1.4em;
}
.article-content code{font-family:var(--num);font-size:.92em;background:var(--bg-sunken);border:1px solid var(--stroke);border-radius:6px;padding:1px 6px}
.article-content pre code{border:0;background:none;padding:0}
.article-content hr{border:0;border-top:1px solid var(--stroke);margin:32px 0}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:64px 24px;margin-top:26px;border-radius:var(--r-lg);
  border:1px dashed var(--stroke-strong);background:var(--bg-elev1);text-align:center;
}
.empty-state .ico{width:44px;height:44px;color:var(--text3)}
.empty-state strong{font-size:18px;color:var(--text1)}
.empty-state span{font-size:14px;color:var(--text3)}

/* 文末 */
.article-foot{margin-top:40px;padding-top:26px;border-top:1px solid var(--stroke)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.tag{font-size:13px;padding:6px 13px;border-radius:999px;border:1px solid var(--stroke);background:var(--bg-elev2);color:var(--text2)}
.tag:hover{color:var(--accent);border-color:rgba(34,224,184,.4)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:26px}
.share-row span{font-size:13px;color:var(--text3);margin-right:4px}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--text2);border:1px solid var(--stroke);background:var(--glass);
  transition:color var(--t),border-color var(--t);
}
.share-btn:hover{color:var(--text1);border-color:var(--stroke-strong)}
.nav-posts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:22px}
.nav-post{
  display:block;padding:16px 18px;border-radius:var(--r-card);border:1px solid var(--stroke);
  background:var(--bg-elev1);transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.nav-post:hover{border-color:rgba(44,123,255,.45);transform:translateY(-2px);box-shadow:var(--sh1)}
.nav-post small{display:block;font-size:12px;color:var(--text3);margin-bottom:6px}
.nav-post strong{display:block;font-size:15px;font-weight:600;color:var(--text1);line-height:1.5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.back-cat{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text2)}
.back-cat:hover{color:var(--accent)}

/* 侧栏 */
.sidebar{min-width:0}
.side-inner{position:sticky;top:120px;display:flex;flex-direction:column;gap:20px}
.side-card{
  padding:20px;border-radius:var(--r-card);border:1px solid var(--stroke);
  background:var(--bg-elev1);background-image:var(--glass);box-shadow:var(--sh1);
}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;
  color:var(--text1);margin-bottom:14px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--accent)}
.toc{display:flex;flex-direction:column;gap:2px}
.toc-link{
  position:relative;padding:8px 8px 8px 14px;font-size:14px;color:var(--text2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;line-height:1.5;
  transition:color var(--t),background var(--t),border-color var(--t);
}
.toc-link:hover{color:var(--text1);background:rgba(255,255,255,.03)}
.toc-link.is-current{color:var(--accent);border-left-color:var(--accent);background:rgba(34,224,184,.06)}
.toc-empty{font-size:13px;color:var(--text3);line-height:1.7}
.hot-list{display:flex;flex-direction:column}
.hot-list li{border-bottom:1px solid var(--stroke)}
.hot-list li:last-child{border-bottom:0}
.hot-list a{display:flex;gap:12px;padding:11px 0;font-size:14px;line-height:1.55;color:var(--text2)}
.hot-list a:hover{color:var(--text1)}
.hot-list .idx{font-family:var(--num);font-size:13px;color:var(--text3);flex-shrink:0;padding-top:2px}
.hot-list li:nth-child(-n+3) .idx{color:var(--warm)}
.side-member{position:relative;overflow:hidden}
.side-member::after{
  content:"";position:absolute;inset:-40% -30% auto auto;width:180px;height:180px;
  background:radial-gradient(circle,rgba(44,123,255,.22),transparent 70%);pointer-events:none;
}
.member-tag{
  display:inline-block;font-size:11px;letter-spacing:.1em;color:var(--warm);
  border:1px solid rgba(255,138,61,.4);background:rgba(255,138,61,.1);
  border-radius:999px;padding:3px 10px;margin-bottom:12px;
}
.side-member h3{font-size:16px;margin-bottom:8px}
.side-member p{font-size:13.5px;color:var(--text2);line-height:1.75;margin-bottom:16px}

/* 相关推荐 */
.related{padding:8px 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:26px}
.section-head p{font-size:14px;color:var(--text3);margin-top:6px}
.section-more{font-size:14px;color:var(--text2);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.section-more:hover{color:var(--accent)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--stroke);background:var(--bg-elev1);
  transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.card:hover{border-color:rgba(44,123,255,.45);transform:translateY(-2px);box-shadow:var(--sh1)}
.card-media{position:relative;background:#0E1626}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:56%;
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.78));
}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:16.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--text2);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:8px;font-size:12.5px;color:var(--text3);margin-top:auto;padding-top:6px}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.22)}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;margin-bottom:80px;padding:36px;
  border-radius:var(--r-lg);border:1px solid var(--stroke-strong);
  background:var(--bg-elev1);box-shadow:var(--sh1);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,8,15,.94),rgba(5,8,15,.62));
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.cta-inner h2{font-size:26px;margin-bottom:10px}
.cta-inner p{font-size:14.5px;color:var(--text2);line-height:1.8;max-width:520px}
.cta-points{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text2)}
.cta-points span::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent)}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{
  flex:1;min-width:200px;height:44px;padding:0 14px;border-radius:12px;
  border:1px solid var(--stroke);background:var(--bg-sunken);color:var(--text1);
  box-shadow:inset 0 1px 0 rgba(0,0,0,.4);outline:none;transition:border-color var(--t),box-shadow var(--t);
}
.cta-form input::placeholder{color:var(--text3)}
.cta-form input:focus{border-color:rgba(34,224,184,.6);box-shadow:0 0 0 3px rgba(34,224,184,.14)}
.cta-note{font-size:12px;color:var(--text3);margin-top:12px;line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--stroke);background:var(--bg-elev1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text2);max-width:320px}
.footer-meta{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:12.5px;color:var(--text3)}
.footer-col h4{font-size:14px;color:var(--text1);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text2)}
.footer-col a:hover{color:var(--accent)}
.qr-box{display:flex;gap:14px;align-items:center}
.qr-img{
  width:76px;height:76px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.4;
  color:var(--text3);border:1px dashed var(--stroke-strong);background:var(--bg-sunken);
}
.qr-text p{font-size:14px;color:var(--text1);margin-bottom:4px}
.qr-text span{font-size:12.5px;color:var(--text3)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 28px;border-top:1px solid var(--stroke);font-size:13px;color:var(--text3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:0}
  .sidebar{margin-top:36px}
  .side-inner{position:static}
  .article-head h1{font-size:30px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
}
@media (max-width:900px){
  .nav-channels{display:none}
  .hot-wrap{display:none}
  .nav-trend{display:none}
  .nav-burger{display:grid}
  .nav-row{height:56px;gap:14px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .brand-text{font-size:15px}
  .article-head h1{font-size:24px;line-height:1.4}
  .article-content{font-size:16px;line-height:1.8}
  .article-content h2{font-size:20px;margin-top:32px}
  .article-content h3{font-size:18px}
  .article-cover img{border-radius:var(--r-img)}
  .crumbs{padding:20px 0 14px}
  .crumbs .cur{max-width:180px}
  .nav-posts{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-head h2{font-size:22px}
  .cta-band{padding:24px 20px;border-radius:var(--r-card)}
  .cta-inner h2{font-size:21px}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .related{padding-bottom:56px}
}
@media (max-width:479px){
  .article-head h1{font-size:22px}
  .meta-row{font-size:12.5px;gap:8px}
  .btn{height:44px}
  .btn-sm{height:36px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg-base:#05080F;
  --bg-elev1:#0A101C;
  --bg-elev2:#101827;
  --bg-sunken:#070C16;
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --stroke:rgba(255,255,255,.09);
  --stroke-strong:rgba(255,255,255,.16);
  --brand:#2C7BFF;
  --brand-600:#1A5BE0;
  --brand-glow:rgba(44,123,255,.45);
  --accent:#22E0B8;
  --accent-glow:rgba(34,224,184,.35);
  --warm:#FF8A3D;
  --text1:#EAF0FA;
  --text2:#9FB0C7;
  --text3:#6B7C93;
  --success:#2ED47A;
  --warn:#FFB020;
  --danger:#FF5A6A;
  --r-btn:12px;
  --r-card:18px;
  --r-lg:24px;
  --r-img:14px;
  --sh1:0 8px 24px -12px rgba(0,0,0,.6),0 1px 0 rgba(255,255,255,.04);
  --sh-brand:0 0 0 1px rgba(44,123,255,.35),0 16px 40px -16px rgba(44,123,255,.5);
  --tr:180ms cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background var(--tr)}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
::selection{background:rgba(44,123,255,.35);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:#0A101C}
::-webkit-scrollbar-thumb{background:#1A2638;border-radius:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}
.ico{width:20px;height:20px;flex:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(5,8,15,.86);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.site-header.is-scrolled{background:rgba(5,8,15,.74);border-bottom-color:var(--stroke);box-shadow:0 10px 30px -20px rgba(0,0,0,.9)}
.nav-row{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--tr)}
.site-header.is-scrolled .nav-row{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(44,123,255,.9),rgba(34,224,184,.55));
  color:#04101f;box-shadow:0 6px 18px -8px var(--brand-glow);
}
.brand-mark .ico{width:20px;height:20px;stroke-width:1.8}
.brand-text{color:var(--text1);font-size:16px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;min-width:0}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:10px;
  color:var(--text2);font-size:14.5px;white-space:nowrap;
}
.nav-link:hover{color:var(--text1);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text1);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px var(--accent-glow);
}
.nav-tools{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  border:1px solid var(--stroke);background:var(--glass);color:var(--text2);
  transition:all var(--tr);
}
.icon-btn:hover{color:var(--text1);border-color:var(--stroke-strong);transform:translateY(-1px)}
.hot-wrap{position:relative}
.hot-btn{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 14px;border-radius:11px;
  border:1px solid rgba(255,138,61,.32);background:rgba(255,138,61,.1);color:var(--warm);
  font-size:13.5px;font-weight:600;transition:all var(--tr);
}
.hot-btn:hover{background:rgba(255,138,61,.16);border-color:rgba(255,138,61,.5)}
.hot-dot{width:6px;height:6px;border-radius:50%;background:var(--warm);box-shadow:0 0 0 0 rgba(255,138,61,.6);animation:breathe 2.4s infinite}
@keyframes breathe{0%{box-shadow:0 0 0 0 rgba(255,138,61,.55)}70%{box-shadow:0 0 0 8px rgba(255,138,61,0)}100%{box-shadow:0 0 0 0 rgba(255,138,61,0)}}
.hot-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:320px;padding:16px;
  border-radius:var(--r-card);border:1px solid var(--stroke-strong);background:rgba(10,16,28,.96);
  backdrop-filter:blur(18px) saturate(140%);box-shadow:var(--sh1);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all var(--tr);
}
.hot-wrap:hover .hot-panel,.hot-wrap:focus-within .hot-panel{opacity:1;visibility:visible;transform:translateY(0)}
.hot-title{font-size:13px;color:var(--text3);margin-bottom:10px}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tags a{
  padding:5px 11px;border-radius:999px;border:1px solid var(--stroke);
  font-size:13px;color:var(--text2);background:rgba(255,255,255,.03);
}
.hot-tags a:hover{color:var(--accent);border-color:rgba(34,224,184,.45)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;transition:all var(--tr);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(180deg,var(--brand),var(--brand-600));
  color:#fff;box-shadow:var(--sh-brand);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 24px var(--brand-glow),var(--sh-brand)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:var(--glass);border-color:var(--stroke-strong);color:var(--text1);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(44,123,255,.45);color:#fff;transform:translateY(-1px)}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.nav-search{
  max-height:0;overflow:hidden;opacity:0;transition:max-height var(--tr),opacity var(--tr),padding var(--tr);
}
.nav-search.is-open{max-height:90px;opacity:1;padding:0 0 14px}
.search-form{
  display:flex;align-items:center;gap:10px;padding:8px 10px 8px 14px;
  border-radius:14px;border:1px solid var(--stroke);background:var(--bg-sunken);color:var(--text3);
  box-shadow:inset 0 2px 8px rgba(0,0,0,.5);
}
.search-form input{
  flex:1;min-width:0;height:32px;border:0;background:transparent;color:var(--text1);font-size:15px;outline:none;
}
.search-form input::placeholder{color:var(--text3)}
.nav-trend{
  display:flex;align-items:center;gap:12px;height:40px;overflow:hidden;
  border-top:1px solid var(--stroke);font-size:13px;color:var(--text3);
}
.nav-trend .trend-label{color:var(--warm);font-weight:600;flex:none}
.nav-trend a{color:var(--text2);white-space:nowrap;padding:2px 0;border-bottom:1px solid transparent}
.nav-trend a:hover{color:var(--accent);border-bottom-color:rgba(34,224,184,.6)}
.nav-trend .sep{width:1px;height:14px;background:var(--stroke);flex:none}
.nav-burger{display:none}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(5,8,15,.97);
  backdrop-filter:blur(18px);display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity 240ms ease,transform 240ms ease,visibility 240ms;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 16px;border-bottom:1px solid var(--stroke)}
.drawer-body{padding:20px 16px 32px;overflow-y:auto}
.drawer-group{margin-bottom:24px}
.drawer-group h4{font-size:13px;color:var(--text3);font-weight:600;margin-bottom:12px;letter-spacing:.4px}
.drawer-body a.drawer-link{
  display:block;padding:13px 14px;border-radius:12px;color:var(--text1);font-size:15.5px;
  border:1px solid transparent;
}
.drawer-body a.drawer-link:hover{background:rgba(255,255,255,.04);border-color:var(--stroke)}
.drawer-body a.drawer-link.is-active{border-color:rgba(34,224,184,.45);color:var(--accent)}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
.drawer-tags a{padding:6px 12px;border-radius:999px;border:1px solid var(--stroke);font-size:13px;color:var(--text2)}
.drawer-cta{margin-top:8px;width:100%}
.drawer-contact{margin-top:20px;font-size:13px;color:var(--text3);line-height:1.9}

/* ---------- banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  padding:52px 0 44px;
  background-image:linear-gradient(rgba(5,8,15,.86),rgba(5,8,15,.94)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--stroke);
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:48px 48px;
}
.banner-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:end}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text3);margin-bottom:16px}
.crumb a:hover{color:var(--accent)}
.crumb .slash{color:var(--text3);opacity:.6}
.crumb .current{color:var(--text2)}
.page-banner h1{
  font-size:34px;line-height:1.3;font-weight:700;color:var(--text1);letter-spacing:.2px;
}
.banner-sub{margin-top:14px;font-size:15.5px;color:var(--text2);max-width:620px;line-height:1.8}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.pill{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
  font-size:12px;color:var(--text2);
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent-glow)}
.banner-stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;
  padding:20px;border-radius:var(--r-card);border:1px solid var(--stroke);background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);box-shadow:var(--sh1);
}
.stat-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:28px;font-weight:700;color:var(--accent);line-height:1.2;
}
.stat-label{margin-top:6px;font-size:13px;color:var(--text3)}

/* ---------- sections ---------- */
.section{padding:80px 0}
.section.tight{padding:64px 0}
.section.alt{background:var(--bg-elev1);border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);
  font-size:12px;letter-spacing:1.2px;color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--accent);box-shadow:0 0 8px var(--accent-glow)}
h2.sec-title{font-size:30px;line-height:1.35;font-weight:700;color:var(--text1)}
.sec-desc{margin-top:12px;font-size:15.5px;color:var(--text2);line-height:1.85}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{
  position:relative;padding:26px 22px;border-radius:var(--r-card);
  background:var(--bg-elev2);border:1px solid var(--stroke);transition:all var(--tr);
}
.step:hover{border-color:rgba(44,123,255,.4);transform:translateY(-2px);box-shadow:var(--sh1)}
.step-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step-node{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;flex:none;
  font-family:var(--font-num);font-size:13px;font-weight:700;color:#041019;
  background:linear-gradient(150deg,var(--accent),#12b394);
  box-shadow:0 0 0 4px rgba(34,224,184,.12),0 0 18px var(--accent-glow);
}
.step-line{flex:1;height:1px;background:linear-gradient(90deg,rgba(34,224,184,.5),rgba(34,224,184,.05))}
.step h3{font-size:18px;font-weight:600;color:var(--text1);margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text2);line-height:1.8}
.step-note{margin-top:14px;font-size:13px;color:var(--text3);display:flex;align-items:center;gap:8px}
.step-note::before{content:"";width:12px;height:2px;background:var(--accent);border-radius:2px}

/* feature grid 2x2 offset */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feat-card{
  padding:30px 28px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:all var(--tr);
}
.feat-card:nth-child(even){margin-top:32px}
.feat-card:hover{border-color:rgba(44,123,255,.45);transform:translateY(-2px);box-shadow:var(--sh1)}
.feat-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(34,224,184,.3);background:rgba(34,224,184,.08);color:var(--accent);
  margin-bottom:18px;
}
.feat-card h3{font-size:20px;font-weight:600;color:var(--text1);margin-bottom:10px}
.feat-card p{font-size:14.8px;color:var(--text2);line-height:1.85}
.feat-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14px;color:var(--accent);font-weight:600;
}
.feat-link:hover{color:#6df3d8;gap:10px}

/* tiers */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.tier{
  position:relative;padding:28px 24px;border-radius:var(--r-card);
  background:var(--bg-elev2);border:1px solid var(--stroke);transition:all var(--tr);
}
.tier:hover{border-color:var(--stroke-strong);transform:translateY(-2px)}
.tier.is-featured{
  background:linear-gradient(180deg,rgba(44,123,255,.09),rgba(44,123,255,.02)),var(--bg-elev2);
  border-color:rgba(44,123,255,.5);box-shadow:var(--sh-brand);
}
.tier-badge{
  position:absolute;top:-12px;right:20px;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:#1b0d02;
  background:linear-gradient(180deg,#FFB173,var(--warm));
  box-shadow:0 8px 20px -10px rgba(255,138,61,.8);
}
.tier-name{font-size:13px;letter-spacing:1px;color:var(--text3);font-family:var(--font-num);text-transform:uppercase}
.tier-title{font-size:22px;font-weight:700;color:var(--text1);margin:8px 0 6px}
.tier-note{font-size:14px;color:var(--text2);line-height:1.8;min-height:52px}
.tier-list{margin:18px 0 22px;display:grid;gap:10px}
.tier-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text2);line-height:1.7}
.tier-list li .mark{
  width:16px;height:16px;flex:none;margin-top:4px;border-radius:4px;
  background:rgba(34,224,184,.14);color:var(--accent);display:grid;place-items:center;
}
.tier-list li .mark svg{width:11px;height:11px;stroke-width:2.4}
.tier-list li.muted .mark{background:rgba(255,255,255,.05);color:var(--text3)}
.tier-cta{width:100%}

/* media split */
.split{display:grid;grid-template-columns:5fr 6fr;gap:52px;align-items:center}
.split-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--stroke);background:#0E1626;
  box-shadow:var(--sh1);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;opacity:.92}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.05),rgba(5,8,15,.62));
}
.split-float{
  position:absolute;left:20px;bottom:20px;z-index:3;
  padding:14px 18px;border-radius:14px;border:1px solid rgba(34,224,184,.35);
  background:rgba(5,8,15,.76);backdrop-filter:blur(14px);
  box-shadow:0 0 24px -8px var(--accent-glow);
}
.split-float .num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.split-float .lbl{font-size:12.5px;color:var(--text2);margin-top:2px}
.check-list{display:grid;gap:14px;margin-top:24px}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--text2);line-height:1.8}
.check-list li .bar{width:3px;flex:none;border-radius:3px;background:var(--accent);box-shadow:0 0 8px var(--accent-glow)}
.check-list li strong{color:var(--text1);font-weight:600}

/* faq */
.faq-layout{display:grid;grid-template-columns:1fr 1.35fr;gap:48px;align-items:start}
.faq-side .contact-card{
  margin-top:24px;padding:20px;border-radius:var(--r-card);
  border:1px solid var(--stroke);background:var(--bg-elev2);
}
.faq-side .contact-card p{font-size:14px;color:var(--text2);line-height:1.8}
.faq-side .contact-card a{display:inline-flex;align-items:center;gap:6px;margin-top:12px;color:var(--accent);font-size:14px;font-weight:600}
.faq-list{border-top:1px solid var(--stroke)}
.faq-item{border-bottom:1px solid var(--stroke)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:14px 12px 14px 16px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text1);
  position:relative;transition:background var(--tr);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(255,255,255,.03)}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--accent);opacity:0;transition:opacity var(--tr);
}
.faq-item[open] summary::before{opacity:1;box-shadow:0 0 10px var(--accent-glow)}
.sign{position:relative;width:18px;height:18px;flex:none;transition:transform var(--tr)}
.sign::before,.sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.sign::before{width:12px;height:1.6px}
.sign::after{width:1.6px;height:12px;transition:opacity var(--tr)}
.faq-item[open] .sign{transform:rotate(180deg)}
.faq-item[open] .sign::after{opacity:0}
.faq-item[open] .sign::before{background:var(--accent)}
.faq-answer{padding:2px 16px 20px 16px;font-size:15px;color:var(--text2);line-height:1.85}

/* CTA */
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:44px 44px;border-radius:var(--r-lg);
  border:1px solid var(--stroke-strong);
  background-image:linear-gradient(120deg,rgba(10,16,28,.94),rgba(5,8,15,.9)),url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
  box-shadow:var(--sh1),inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-card h2{font-size:27px;font-weight:700;color:var(--text1);line-height:1.4}
.cta-card .cta-desc{margin-top:12px;font-size:15px;color:var(--text2);line-height:1.8}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text2)}
.cta-points span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--warm)}
.cta-form{display:grid;gap:12px}
.field{
  height:46px;border-radius:12px;border:1px solid var(--stroke);
  background:var(--bg-sunken);box-shadow:inset 0 2px 8px rgba(0,0,0,.5);
  padding:0 16px;color:var(--text1);font-size:15px;outline:none;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.field::placeholder{color:var(--text3)}
.field:focus{border-color:rgba(34,224,184,.6);box-shadow:0 0 0 3px rgba(34,224,184,.14),inset 0 2px 8px rgba(0,0,0,.5)}
.cta-form .btn{width:100%}
.cta-fineprint{font-size:12px;color:var(--text3);line-height:1.7}
.cta-fineprint a{color:var(--text2);text-decoration:underline;text-underline-offset:3px}
.cta-fineprint a:hover{color:var(--accent)}

/* related chips */
.chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.chip-row a{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  border:1px solid var(--stroke);background:rgba(255,255,255,.03);
  font-size:14px;color:var(--text2);transition:all var(--tr);
}
.chip-row a:hover{color:var(--accent);border-color:rgba(34,224,184,.45);transform:translateY(-1px)}

/* footer */
.site-footer{
  border-top:1px solid var(--stroke);
  background:var(--bg-elev1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  padding-top:56px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text2);line-height:1.85;max-width:340px}
.footer-meta{margin-top:16px;display:grid;gap:6px;font-size:12.5px;color:var(--text3)}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text1);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text2)}
.footer-col a:hover{color:var(--accent)}
.qr-box{display:flex;gap:14px;align-items:center}
.qr-img{
  width:76px;height:76px;border-radius:12px;flex:none;
  border:1px dashed var(--stroke-strong);background:var(--bg-elev2);
  display:grid;place-items:center;text-align:center;font-size:12px;color:var(--text3);line-height:1.4;
}
.qr-text p{font-size:14px;color:var(--text2)}
.qr-text span{display:block;margin-top:6px;font-size:12.5px;color:var(--text3)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 26px;border-top:1px solid var(--stroke);font-size:13px;color:var(--text3);
}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .nav-channels{display:none}
  .nav-burger{display:grid}
  .hot-wrap{display:none}
  .nav-trend{display:none}
  .nav-row{height:64px}
  .site-header.is-scrolled .nav-row{height:58px}
  .banner-inner{grid-template-columns:1fr;gap:24px;align-items:start}
  .banner-stats{max-width:420px}
  .section{padding:64px 0}
  .split{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .brand-text{font-size:14.5px}
  .page-banner{padding:34px 0 30px}
  .page-banner h1{font-size:26px}
  .banner-sub{font-size:14.5px}
  .banner-stats{grid-template-columns:1fr 1fr;padding:16px}
  .stat-num{font-size:22px}
  .section{padding:48px 0}
  h2.sec-title{font-size:24px}
  .steps{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .feat-card:nth-child(even){margin-top:0}
  .tier-grid{grid-template-columns:1fr}
  .tier-note{min-height:0}
  .faq-side .contact-card{margin-top:16px}
  .cta-card{padding:28px 20px;border-radius:var(--r-card)}
  .cta-card h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn{width:auto}
}
@media (max-width:479px){
  .page-banner h1{font-size:22px}
  .banner-stats{grid-template-columns:1fr}
  .nav-tools .btn-sm{display:none}
}