/* roulang page: index */
:root{
  --bg:#0B0F14;
  --bg-soft:#121820;
  --surface:#18212C;
  --surface-2:#1B2532;
  --mint:#3EF0C6;
  --mint-strong:#2BDCB1;
  --mint-dark:#05241D;
  --coral:#FF5D7C;
  --amber:#FFBE6B;
  --text:#EAF0F6;
  --muted:#9AA7B5;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-lg:0 24px 64px -22px rgba(0,0,0,.62);
  --shadow-md:0 14px 40px -20px rgba(0,0,0,.5);
  --mint-glow:0 0 0 1px rgba(62,240,198,.28),0 8px 30px rgba(62,240,198,.14);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  margin:0;
  padding:0;
}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--mint);}
img{max-width:100%;height:auto;display:block;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0 0 .55em;line-height:1.2;font-weight:700;letter-spacing:.01em;}
h1{font-size:clamp(38px,6vw,64px);letter-spacing:.015em;}
h2{font-size:clamp(28px,3.8vw,40px);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}

body{overflow-x:hidden;}
.ky-container{
  max-width:1240px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
  width:100%;
}
.ky-section-pad{padding-top:96px;padding-bottom:96px;}
.ky-soft-bg{background:var(--bg-soft);}

/* 高对比按钮 */
.ky-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 22px;
  border-radius:var(--radius-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:all .3s ease;
  white-space:nowrap;
}
.ky-btn-primary{
  background:var(--mint);
  color:var(--mint-dark);
  box-shadow:0 6px 20px rgba(62,240,198,.14);
}
.ky-btn-primary:hover{
  background:#7FF7DD;
  color:#03241c;
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(62,240,198,.28);
}
.ky-btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
  color:var(--text);
}
.ky-btn-ghost:hover{
  border-color:var(--mint);
  color:var(--mint);
  background:rgba(62,240,198,.05);
  transform:translateY(-2px);
}
.ky-btn:focus-visible{
  outline:2px solid var(--mint);
  outline-offset:3px;
}

/* 标签 */
.ky-tag{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(62,240,198,.1);
  color:var(--mint);
  border:1px solid rgba(62,240,198,.24);
  font-size:12px;
  font-weight:500;
  line-height:1.2;
  letter-spacing:.02em;
}
.ky-tag-coral{
  background:rgba(255,93,124,.1);
  color:var(--coral);
  border-color:rgba(255,93,124,.25);
}
.ky-tag-amber{
  background:rgba(255,190,107,.1);
  color:var(--amber);
  border-color:rgba(255,190,107,.25);
}

/* 导航 */
.ky-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  height:72px;
  background:rgba(11,15,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(62,240,198,.24);
  transition:background .3s,box-shadow .3s,border-color .3s;
}
.ky-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  max-width:1240px;
  height:100%;
  margin:0 auto;
  padding:0 24px;
  gap:24px;
}
.ky-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:#fff;
  letter-spacing:.01em;
  flex-shrink:0;
}
.ky-logo-mark{
  width:30px;
  height:30px;
  flex:0 0 30px;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(62,240,198,.28),rgba(62,240,198,.05));
  border:1px solid rgba(62,240,198,.55);
  position:relative;
}
.ky-logo-mark::after{
  content:"";
  position:absolute;
  left:9px;top:6px;
  width:10px;height:16px;
  border:2px solid var(--mint);
  border-radius:6px;
}
.ky-logo-mark::before{
  content:"";
  position:absolute;
  left:12px;top:10px;
  width:4px;height:9px;
  border-radius:6px;
  background:var(--mint);
  z-index:1;
}
.ky-navlist{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0;
}
.ky-navlist a{
  display:inline-flex;
  align-items:center;
  min-height:72px;
  padding:0 14px;
  color:#C7D1DB;
  font-size:14px;
  font-weight:500;
  letter-spacing:.02em;
  border-bottom:2px solid transparent;
  transition:color .25s,border-color .25s,box-shadow .25s;
}
.ky-navlist a:hover{
  color:#fff;
  border-bottom-color:var(--mint);
}
.ky-navlist a.active{
  color:var(--mint);
  border-bottom-color:var(--mint);
  box-shadow:0 8px 18px -10px rgba(62,240,198,.4);
  text-shadow:0 0 12px rgba(62,240,198,.15);
}
.ky-nav-cta{
  margin-left:10px;
  flex-shrink:0;
}
.ky-btn-sm{
  height:42px;
  padding:0 18px;
  min-height:42px;
  border-radius:10px;
}
.ky-burger{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  border-radius:12px;
  color:#EAF0F6;
  cursor:pointer;
  font-size:10px;
}
.ky-burger .bar{
  width:20px;
  height:2px;
  background:currentColor;
  border-radius:3px;
  display:block;
  box-shadow:0 -6px 0 currentColor,0 6px 0 currentColor;
  transition:transform .2s;
}
.ky-overlay{
  position:fixed;
  inset:0;
  background:rgba(5,8,11,.78);
  backdrop-filter:blur(6px);
  z-index:180;
  opacity:0;
  visibility:hidden;
  transition:all .3s;
}
.ky-overlay.show{opacity:1;visibility:visible;}
.ky-drawer{
  position:fixed;
  top:18px;
  right:18px;
  bottom:18px;
  width:min(420px,86vw);
  z-index:200;
  background:var(--surface);
  border-radius:22px;
  padding:26px;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-lg);
  display:none;
  flex-direction:column;
  gap:18px;
}
.ky-drawer.open{display:flex;}
.ky-drawer-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.ky-drawer-close{
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);color:#EAF0F6;border:1px solid var(--line-strong);
  cursor:pointer;font-size:18px;display:inline-flex;align-items:center;justify-content:center;
}
.ky-drawer a.ky-logo{font-size:17px;}
.ky-drawer-list{display:flex;flex-direction:column;gap:4px;}
.ky-drawer-list a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 12px;
  border-radius:12px;
  color:#C7D1DB;
  font-weight:500;
}
.ky-drawer-list a.active{
  color:var(--mint);
  background:rgba(62,240,198,.08);
}
.ky-drawer-list a:hover{
  color:#fff;
  background:rgba(255,255,255,.04);
}

/* hero */
.ky-hero{
  position:relative;
  padding:162px 0 120px;
  overflow:hidden;
  background:#0B0F14;
}
.ky-hero::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  bottom:0;
  background:
    linear-gradient(90deg,rgba(11,15,20,.82) 0%,rgba(11,15,20,.42) 42%,rgba(11,15,20,.22) 100%),
    url('/assets/images/backpic/back-1.png') center 20%/cover no-repeat;
  opacity:.62;
  z-index:0;
}
.ky-hero::after{
  content:"";
  position:absolute;
  width:480px;height:480px;
  left:52%;top:-140px;
  background:radial-gradient(circle,rgba(62,240,198,.15),transparent 67%);
  pointer-events:none;
  z-index:0;
}
.ky-hero .ky-container{position:relative;z-index:2;}
.ky-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,46%) minmax(0,54%);
  align-items:center;
  gap:40px;
}
.ky-hero-text{max-width:560px;}
.ky-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  color:#C7D1DB;
  font-size:13px;
  letter-spacing:.04em;
  margin-bottom:24px;
}
.ky-eyebrow::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 4px rgba(62,240,198,.13);
}
.ky-hero-title{
  color:#fff;
  margin-bottom:22px;
  font-weight:800;
}
.ky-hero-sub{
  font-size:17px;
  line-height:2;
  color:#BAC5D1;
  max-width:34em;
  margin-bottom:34px;
}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.ky-trust-row{display:flex;flex-wrap:wrap;gap:10px 20px;margin:0;}
.ky-trust-row li{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--muted);
  font-size:13px;
}
.ky-trust-row li::before{
  content:"✓";
  color:var(--mint);
  font-weight:700;
  width:18px;height:18px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(62,240,198,.1);
  font-size:10px;
}

/* 手机 UI 模拟器 */
.ky-hero-visual{
  position:relative;
  display:flex;
  justify-content:center;
  padding:18px 0 8px;
}
.ky-phone-wrap{
  position:relative;
  width:min(320px,84%);
  margin:0 auto;
}
.ky-phone{
  aspect-ratio:9/16;
  border-radius:24px;
  background:var(--surface);
  border:1px solid rgba(62,240,198,.38);
  padding:12px;
  box-shadow:
    0 34px 90px -30px rgba(0,0,0,.8),
    0 0 40px rgba(62,240,198,.06);
  position:relative;
  z-index:2;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.ky-phone-status{
  height:20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 4px;
  color:#9AA7B5;
  font-size:10px;
  letter-spacing:.04em;
}
.ky-phone-dot{
  width:9px;height:9px;
  border-radius:50%;
  background:var(--mint);
  opacity:.7;
}
.ky-phone-screen{
  flex:1;
  background:linear-gradient(150deg,rgba(24,33,44,.9),rgba(18,24,32,.98)),radial-gradient(circle at 64% 24%,rgba(62,240,198,.35),transparent 48%);
  border-radius:14px;
  padding:20px 16px;
  overflow:hidden;
  position:relative;
  display:flex;
  flex-direction:column;
}
.ky-phone-brandline{
  width:88px;
  height:10px;
  border-radius:9px;
  background:rgba(62,240,198,.6);
  display:block;
  margin-bottom:14px;
}
.ky-phone-lines{
  width:100%;
  display:block;
  height:45px;
  border-radius:14px;
  border:1px dashed rgba(255,255,255,.16);
  margin-bottom:14px;
  background:
    linear-gradient(90deg,transparent 30%,rgba(62,240,198,.24) 30%,rgba(62,240,198,.24) 32%,transparent 32%),
    linear-gradient(90deg,transparent 70%,rgba(62,240,198,.24) 70%,rgba(62,240,198,.24) 72%,transparent 72%);
}
.ky-phone-orb{
  width:78px;height:78px;
  border-radius:50%;
  background:radial-gradient(circle at 34% 30%,rgba(62,240,198,.66),rgba(62,240,198,.13) 64%);
  box-shadow:0 0 36px rgba(62,240,198,.3);
  margin:0 auto 14px;
  position:relative;
}
.ky-phone-orb::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:18px;height:18px;
  transform:translate(-50%,-50%);
  border-radius:6px;
  border:2px solid rgba(5,36,29,.9);
  box-shadow:0 0 0 4px rgba(255,255,255,.08);
}
.ky-phone-meter{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:8px;
}
.ky-meter-col{display:flex;flex-direction:column;gap:6px;flex:1;}
.ky-meter-bar{
  width:100%;
  height:6px;
  border-radius:999px;
  background:rgba(255,255,255,.09);
  overflow:hidden;
  position:relative;
}
.ky-meter-bar span{
  content:"";
  display:block;
  height:100%;
  border-radius:inherit;
  background:linear-gradient(90deg,var(--mint),rgba(62,240,198,.12));
}
.ky-meter-bar.coral span{background:linear-gradient(90deg,var(--coral),rgba(255,93,124,.12));}
.ky-phone-actions{
  display:flex;
  justify-content:space-around;
  align-items:center;
  padding:8px 0 2px;
  border-top:1px solid var(--line);
}
.ky-phone-icon{
  display:flex;
  align-items:center;
  gap:5px;
  color:var(--muted);
  font-size:10px;
}
.ky-phone-icon svg{width:16px;height:16px;flex:0 0 16px;}
.ky-chip{
  position:absolute;
  z-index:5;
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:30px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.03em;
  background:rgba(18,24,32,.92);
  border:1px solid rgba(62,240,198,.32);
  color:#D6EEEA;
  box-shadow:0 8px 22px rgba(0,0,0,.3);
  white-space:nowrap;
}
.ky-chip i{
  width:6px;height:6px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 3px rgba(62,240,198,.14);
}
.ky-chip-one{top:8%;right:-4%;}
.ky-chip-two{bottom:20%;left:-5%;border-color:rgba(255,93,124,.3);}
.ky-chip-two i{background:var(--coral);box-shadow:0 0 0 3px rgba(255,93,124,.12);}
.ky-chip-three{bottom:2%;right:4%;}
.ky-chip-four{bottom:-4%;left:8%;border-color:rgba(255,190,107,.3);}
.ky-chip-four i{background:var(--amber);box-shadow:0 0 0 3px rgba(255,190,107,.12);}

/* section header */
.ky-sec-head{
  max-width:820px;
  margin-bottom:44px;
  position:relative;
}
.ky-sec-eyebrow{
  color:var(--mint);
  font-size:13px;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:700;
  display:block;
  margin-bottom:12px;
}
.ky-sec-head h2{color:#fff;}
.ky-sec-head p{color:var(--muted);font-size:15px;}

/* 爆款卡区 */
.ky-clip-rail{
  display:flex;
  gap:18px;
  overflow-x:auto;
  padding:6px 8px 28px 2px;
  scroll-snap-type:x proximity;
  scrollbar-width:thin;
  scrollbar-color:var(--mint) rgba(255,255,255,.06);
}
.ky-clip-card{
  flex:0 0 272px;
  scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s;
  display:flex;
  flex-direction:column;
}
.ky-clip-card:hover{
  transform:translateY(-5px);
  border-color:rgba(62,240,198,.38);
  box-shadow:var(--shadow-md);
}
.ky-clip-media{
  width:100%;
  position:relative;
  padding-top:128%;
  background:var(--surface-2);
  overflow:hidden;
}
.ky-clip-media .ky-cover-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transition:transform .45s ease;
}
.ky-clip-card:hover .ky-cover-bg{transform:scale(1.05);}
.ky-cover-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,15,20,.04) 18%,rgba(11,15,20,.75) 100%);
  z-index:1;
}
.ky-duration{
  position:absolute;
  left:14px;
  top:14px;
  z-index:2;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(5,8,11,.72);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
  font-size:11px;
  backdrop-filter:blur(8px);
  display:inline-flex;
  align-items:center;
  gap:6px;
  letter-spacing:.03em;
}
.ky-duration::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 3px rgba(62,240,198,.13);
}
.ky-clip-body{
  padding:16px 16px 18px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.ky-clip-body h3{
  font-size:17px;
  color:#F2F6FA;
  line-height:1.5;
  font-weight:600;
  margin:0;
}
.ky-clip-foot{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-top:auto;
  color:var(--muted);
  font-size:13px;
  border-top:1px solid var(--line);
  padding-top:12px;
}
.ky-clip-link{
  color:#C7D1DB;
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:13px;
}
.ky-clip-link:hover{color:var(--mint);}

/* 种草清单 */
.ky-guide-grid{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
  align-items:start;
}
.ky-guide-intro .ky-guide-tagline{
  color:var(--muted);
  font-size:16px;
  line-height:1.9;
  margin:18px 0 26px;
  max-width:27em;
}
.ky-guide-list{border-top:1px solid var(--line);}
.ky-guide-row{
  display:grid;
  grid-template-columns:72px minmax(0,1fr) 36px;
  gap:16px;
  align-items:center;
  padding:24px 6px 24px 0;
  border-bottom:1px solid var(--line);
  transition:background .25s,padding .25s;
}
.ky-guide-row:hover{
  background:rgba(255,255,255,.018);
  padding-left:8px;
  border-radius:14px;
}
.ky-guide-num{
  font-size:38px;
  font-weight:800;
  color:var(--mint);
  letter-spacing:0;
  font-variant-numeric:tabular-nums;
  opacity:.92;
}
.ky-guide-row h3{
  font-size:18px;
  color:#fff;
  font-weight:600;
  margin-bottom:5px;
}
.ky-guide-row p{
  color:var(--muted);
  font-size:14px;
  margin:0;
  line-height:1.75;
}
.ky-guide-arrow{
  width:34px;height:34px;
  border-radius:10px;
  background:rgba(62,240,198,.08);
  border:1px solid rgba(62,240,198,.2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--mint);
  transition:background .3s,border-color .3s;
}
.ky-guide-row:hover .ky-guide-arrow{
  background:var(--mint);
  border-color:var(--mint);
  color:var(--mint-dark);
}
.ky-guide-arrow::after{content:"→";font-size:16px;font-weight:600;}
.ky-guide-cta-line{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 4px 0;
  flex-wrap:wrap;
}
.ky-guide-cta-line span{color:var(--muted);font-size:14px;}
.ky-text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--mint);
  font-weight:600;
  font-size:14px;
}
.ky-text-link::after{content:"→";transition:transform .2s;}
.ky-text-link:hover::after{transform:translateX(4px);}

/* 反馈横幅 */
.ky-social-card-wrap{
  display:flex;
  gap:16px;
  overflow-x:auto;
  padding:2px 4px 20px;
}
.ky-social-card{
  flex:0 0 290px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-md);
}
.ky-social-card-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.ky-avatar{
  width:44px;
  height:44px;
  border-radius:50%;
  background:linear-gradient(135deg,rgba(255,255,255,.12),rgba(255,255,255,.04));
  border:1px solid var(--line-strong);
  position:relative;
  flex:0 0 44px;
}
.ky-avatar::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  transform:translate(-50%,-50%);
  width:18px;height:10px;
  border-radius:999px 999px 14px 14px;
  background:var(--muted);
  opacity:.8;
}
.ky-social-card-top .ky-bars{flex:1;}
.ky-bars span{
  display:block;
  background:rgba(255,255,255,.09);
  border-radius:99px;
  height:9px;
  width:100%;
  margin-bottom:7px;
}
.ky-bars span:last-child{width:62%;}
.ky-social-stars{
  color:var(--amber);
  letter-spacing:4px;
  font-size:16px;
  margin-bottom:16px;
  opacity:.9;
}
.ky-social-empty{
  background:rgba(255,255,255,.02);
  border:1px dashed var(--line-strong);
  border-radius:18px;
  padding:24px 0;
  text-align:center;
  color:var(--muted);
  font-size:15px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:8px;
  margin-top:10px;
}
.ky-social-empty .ico{
  width:38px;height:38px;border-radius:12px;
  background:rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:center;
  color:var(--mint);
  font-size:20px;
}
.ky-social-note{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  color:var(--muted);
  font-size:13px;
  border-top:1px solid var(--line);
  padding-top:14px;
  margin-top:18px;
}

/* 最新指引 CMS */
.ky-news-grid{
  display:grid;
  grid-template-columns:minmax(0,5.3fr) minmax(0,6.7fr);
  gap:26px;
  align-items:start;
}
.ky-news-step-empty{
  border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.018);
  border-radius:var(--radius-lg);
  padding:48px 24px;
  text-align:center;
  color:var(--muted);
  font-size:15px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  grid-column:1/-1;
}
.ky-news-step-empty .ico{
  width:46px;height:46px;border-radius:14px;
  background:rgba(62,240,198,.09);
  color:var(--mint);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
}
.ky-feature-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  transition:border-color .3s,transform .3s,box-shadow .3s;
  display:flex;
  flex-direction:column;
  height:100%;
}
.ky-feature-card:hover{
  border-color:rgba(62,240,198,.34);
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
.ky-feature-media{
  aspect-ratio:16/10;
  position:relative;
  background:
    radial-gradient(circle at 50% 46%,rgba(62,240,198,.48),rgba(18,24,32,.32) 55%),
    url('/assets/images/coverpic/cover-5.png') center/cover no-repeat;
}
.ky-feature-media::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:75%;
  background:linear-gradient(180deg,transparent,rgba(24,33,44,.94));
}
.ky-feature-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:12px;
  position:relative;
  margin-top:-32px;
  z-index:2;
}
.ky-feature-meta{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;}
.ky-feature-body h3{
  font-size:22px;
  color:#fff;
  line-height:1.4;
  font-weight:700;
  margin:0;
}
.ky-feature-body h3 a:hover{color:var(--mint);}
.ky-feature-body p{color:var(--muted);font-size:14px;margin:0;line-height:1.8;}
.ky-read-more{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--mint);
  font-size:14px;
  font-weight:600;
  padding-top:2px;
}
.ky-news-list{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.ky-news-item{
  background:rgba(24,33,44,.62);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 18px 16px;
  transition:border-color .3s,transform .3s,background .3s;
}
.ky-news-item:hover{
  border-color:rgba(62,240,198,.3);
  background:var(--surface);
  transform:translateY(-2px);
}
.ky-news-item-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:8px;
}
.ky-date{
  color:var(--muted);
  font-size:12px;
  display:inline-flex;
  align-items:center;
  gap:4px;
}
.ky-date::before{
  content:"";
  width:4px;height:4px;
  border-radius:50%;
  background:var(--line-strong);
}
.ky-news-item h3{
  font-size:16px;
  font-weight:600;
  color:#EAF0F6;
  margin:0 0 6px;
  line-height:1.5;
}
.ky-news-item h3 a:hover{color:var(--mint);}
.ky-news-item p{
  font-size:13px;
  color:var(--muted);
  margin:0;
  line-height:1.7;
}

/* FAQ */
.ky-faq-layout{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:56px;
  align-items:start;
}
.ky-faq-intro h2{color:#fff;font-size:clamp(28px,3.4vw,36px);}
.ky-faq-intro p{color:var(--muted);margin:18px 0 24px;font-size:15px;}
.ky-faq-list{display:flex;flex-direction:column;gap:14px;}
.ky-faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .3s,box-shadow .3s;
}
.ky-faq-item.open{
  border-color:rgba(62,240,198,.32);
  box-shadow:var(--shadow-md);
}
.ky-faq-q{
  width:100%;
  background:transparent;
  border:0;
  padding:18px 62px 18px 20px;
  color:#EAF0F6;
  font-size:16px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  min-height:56px;
  position:relative;
}
.ky-plus{
  position:absolute;
  right:20px;
  top:20px;
  width:20px;
  height:20px;
  transition:transform .35s ease,color .3s;
  color:var(--mint);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.ky-plus::before,.ky-plus::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
  transition:background .3s;
}
.ky-plus::before{width:14px;height:2px;}
.ky-plus::after{width:2px;height:14px;}
.ky-faq-item.open .ky-plus{
  transform:rotate(135deg);
  color:var(--coral);
}
.ky-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.ky-answer-inner{
  padding:0 20px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  border-top:1px solid var(--line);
  padding-top:16px;
}
.ky-faq-item.open .ky-answer{max-height:480px;}
.ky-faq-help{
  margin-top:30px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  border-radius:16px;
  padding:18px;
  font-size:14px;
  color:var(--muted);
}
.ky-faq-help strong{color:#EAF0F6;display:block;margin-bottom:6px;}

/* CTA */
.ky-cta-panel{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  padding:58px 56px;
  background:
    radial-gradient(circle at 78% 26%,rgba(62,240,198,.18),transparent 34%),
    linear-gradient(120deg,#18212C,#10161F 65%,rgba(62,240,198,.08));
  border:1px solid rgba(62,240,198,.26);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:44px;
  box-shadow:var(--shadow-lg);
}
.ky-cta-panel::before{
  content:"";
  position:absolute;
  width:180px;height:180px;
  right:-60px;bottom:-60px;
  background:radial-gradient(circle,rgba(255,93,124,.14),transparent 66%);
}
.ky-cta-copy{position:relative;z-index:2;}
.ky-cta-copy h2{
  color:#fff;
  font-size:clamp(24px,2.6vw,34px);
  margin:0 0 12px;
}
.ky-cta-copy p{
  color:var(--muted);
  font-size:14px;
  margin:0;
  max-width:36em;
}
.ky-cta-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
  flex-shrink:0;
}
.ky-cta-textlink{
  display:inline-flex;
  color:#C7D1DB;
  font-size:14px;
  font-weight:500;
  border-bottom:1px solid transparent;
}
.ky-cta-textlink:hover{
  color:var(--mint);
  border-bottom-color:rgba(62,240,198,.4);
}

/* 页脚 */
.ky-footer{
  background:#070A0E;
  border-top:1px solid rgba(62,240,198,.14);
  padding-top:64px;
  padding-bottom:34px;
  margin-top:86px;
}
.ky-footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.7fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);
  gap:42px;
  margin-bottom:34px;
}
.ky-footer a{color:var(--muted);font-size:13px;transition:color .25s;}
.ky-footer a:hover{color:var(--mint);}
.ky-footer-brand .ky-logo{margin-bottom:16px;}
.ky-footer-brand p{
  color:var(--muted);
  font-size:13px;
  line-height:1.85;
  margin:0;
  max-width:20rem;
}
.ky-footer-col-title{
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:12px;
  letter-spacing:.02em;
}
.ky-footer-col li{margin-bottom:8px;}
.ky-footer-hr{
  border-top:1px solid var(--line);
  margin:20px 0 16px;
}
.ky-footer-note{
  border:1px solid rgba(255,255,255,.05);
  background:rgba(255,255,255,.012);
  border-radius:12px;
  padding:14px 18px;
  color:var(--muted);
  font-size:12px;
  line-height:1.8;
  margin-bottom:24px;
}
.ky-copyright{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  color:#6C7887;
  font-size:13px;
}
.ky-copyright a{color:#6C7887;font-size:13px;}
.ky-copyright a:hover{color:var(--mint);}

/* 通用Foundation微调 */
.row,.grid-x,.grid-container{max-width:100%;margin-left:auto;margin-right:auto;}
.cell{padding-left:0;padding-right:0;}

/* Responsive */
@media (max-width:1024px){
  .ky-navlist{display:none;}
  .ky-nav-cta{display:none;}
  .ky-burger{display:inline-flex;}
  .ky-drawer{display:none;}
  .ky-hero{padding-top:132px;padding-bottom:80px;}
  .ky-hero-grid{grid-template-columns:1fr;gap:64px;}
  .ky-hero-text{max-width:720px;}
  .ky-guide-grid{grid-template-columns:1fr;gap:32px;}
  .ky-news-grid{grid-template-columns:1fr;gap:24px;}
  .ky-faq-layout{grid-template-columns:1fr;gap:40px;}
  .ky-cta-panel{flex-direction:column;align-items:flex-start;padding:38px 30px;}
  .ky-footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px;}
}
@media (max-width:640px){
  .ky-container{padding-left:20px;padding-right:20px;}
  .ky-section-pad{padding-top:64px;padding-bottom:64px;}
  .ky-hero{padding-top:118px;padding-bottom:60px;}
  .ky-hero-actions{flex-direction:column;width:100%;}
  .ky-hero-actions .ky-btn{width:100%;}
  .ky-hero-visual{padding:16px 0 50px;}
  .ky-phone-wrap{width:min(280px,92%);}
  .ky-chip-one{right:0;}
  .ky-chip-two{left:-2%;bottom:23%;}
  .ky-chip-three{right:-2%;bottom:0;}
  .ky-cta-panel{padding:30px 20px;border-radius:18px;}
  .ky-cta-actions .ky-btn{width:100%;}
  .ky-clip-card{flex:0 0 250px;}
  .ky-footer-grid{grid-template-columns:1fr;gap:26px;}
  .ky-nav{padding:0 16px;}
  .ky-logo{font-size:16px;}
  .ky-guide-row{grid-template-columns:52px minmax(0,1fr) 32px;gap:10px;padding:20px 2px;}
  .ky-guide-num{font-size:30px;}
  .ky-btn{min-height:44px;}
  h1{font-size:36px;}
}

/* roulang page: article */
:root {
            --ky-bg: #0B0F14;
            --ky-surface: #121820;
            --ky-card: #18212C;
            --ky-card2: #1B2532;
            --ky-primary: #3EF0C6;
            --ky-primary-dark: #05241D;
            --ky-accent: #FF5D7C;
            --ky-warm: #FFBE6B;
            --ky-text: #EAF0F6;
            --ky-muted: #9AA7B5;
            --ky-border: rgba(255,255,255,.08);
            --ky-line-soft: rgba(255,255,255,.06);
            --ky-nav-h: 72px;
            --ky-radius: 18px;
            --ky-radius-sm: 12px;
            --ky-radius-lg: 24px;
            --ky-gap: 96px;
            --ky-font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 92px;
        }

        body {
            font-family: var(--ky-font);
            background-color: var(--ky-bg);
            color: var(--ky-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
            min-height: 100vh;
        }

        body.ky-menu-open {
            overflow: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            z-index: 0;
            pointer-events: none;
            background:
                radial-gradient(circle at 77% 12%, rgba(62, 240, 198, .07), transparent 28%),
                radial-gradient(circle at 8% 36%, rgba(255, 93, 124, .05), transparent 26%),
                linear-gradient(180deg, rgba(255,255,255,.02), transparent 28%);
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul,
        ol {
            list-style: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        .ky-container {
            width: 100%;
            max-width: 1240px;
            margin-inline: auto;
            padding-inline: clamp(20px, 3vw, 32px);
            position: relative;
            z-index: 1;
        }

        .ky-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--ky-radius-sm);
            font-weight: 700;
            font-size: 15px;
            padding: 0 22px;
            height: 48px;
            min-height: 48px;
            transition: background .25s ease, color .25s ease, box-shadow .25s ease, border-color .25s ease, transform .25s ease;
            line-height: 1;
            white-space: nowrap;
            text-align: center;
        }

        .ky-btn-primary {
            background: var(--ky-primary);
            color: var(--ky-primary-dark);
            box-shadow: 0 0 0 rgba(62, 240, 198, 0);
        }

        .ky-btn-primary:hover {
            background: #62f4d3;
            color: #05241D;
            box-shadow: 0 0 24px rgba(62, 240, 198, .25);
            transform: translateY(-1px);
        }

        .ky-btn-ghost {
            border: 1px solid rgba(255, 255, 255, .2);
            color: var(--ky-text);
            background: rgba(255, 255, 255, .03);
        }

        .ky-btn-ghost:hover {
            border-color: var(--ky-primary);
            color: var(--ky-primary);
            background: rgba(62, 240, 198, .08);
        }

        .ky-btn-sm {
            height: 42px;
            min-height: 42px;
            padding: 0 18px;
            font-size: 14px;
        }

        .ky-btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 3px;
        }

        .ky-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            height: var(--ky-nav-h);
            background: rgba(9, 13, 18, .82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(62, 240, 198, .32);
        }

        .ky-nav {
            height: var(--ky-nav-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 22px;
            max-width: 1240px;
            width: 100%;
            margin-inline: auto;
            padding-inline: clamp(20px, 3vw, 32px);
        }

        .ky-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 17px;
            letter-spacing: .01em;
            line-height: 1.2;
            flex-shrink: 0;
            transition: opacity .2s;
        }

        .ky-logo:hover {
            opacity: .88;
        }

        .ky-logo-mark {
            width: 23px;
            height: 23px;
            border-radius: 6px;
            border: 2px solid var(--ky-primary);
            position: relative;
            flex: none;
            box-shadow: 0 0 14px rgba(62, 240, 198, .12);
        }

        .ky-logo-mark::before {
            content: "";
            position: absolute;
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--ky-primary);
            top: 6px;
            left: 6px;
            box-shadow: 8px 0 0 var(--ky-accent);
        }

        .ky-navlist {
            display: flex;
            align-items: center;
            gap: clamp(4px, 1.6vw, 24px);
            margin: 0;
            justify-content: center;
        }

        .ky-navlist li {
            margin: 0;
        }

        .ky-navlist a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--ky-muted);
            padding: 8px 2px;
            transition: color .22s;
        }

        .ky-navlist a::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--ky-primary);
            transform: scaleX(0);
            transform-origin: 0 100%;
            transition: transform .25s ease;
        }

        .ky-navlist a:hover {
            color: #fff;
        }

        .ky-navlist a:hover::after {
            transform: scaleX(1);
        }

        .ky-navlist a.active {
            color: var(--ky-primary);
            text-shadow: 0 0 18px rgba(62, 240, 198, .35);
        }

        .ky-navlist a.active::after {
            transform: scaleX(1);
            box-shadow: 0 0 8px rgba(62, 240, 198, .6);
        }

        .ky-burger {
            width: 44px;
            height: 44px;
            display: none;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--ky-text);
            border: 1px solid rgba(255, 255, 255, .08);
            background: rgba(255, 255, 255, .04);
            position: relative;
        }

        .ky-burger .bar,
        .ky-burger .bar::before {
            content: "";
            width: 18px;
            height: 2px;
            background: currentColor;
            border-radius: 3px;
            display: block;
            transition: transform .25s;
        }

        .ky-burger .bar::before {
            transform: translateY(-5px);
        }

        .ky-burger .bar::after {
            content: "";
            width: 18px;
            height: 2px;
            background: currentColor;
            border-radius: 3px;
            display: block;
            transform: translateY(3px);
            transition: transform .25s;
        }

        .ky-burger:hover {
            color: var(--ky-primary);
        }

        .ky-drawer {
            position: fixed;
            top: var(--ky-nav-h);
            right: 0;
            width: min(86vw, 360px);
            height: calc(100vh - var(--ky-nav-h));
            background: #0D131A;
            border-left: 1px solid rgba(255, 255, 255, .08);
            z-index: 70;
            padding: 24px 20px 36px;
            display: flex;
            flex-direction: column;
            transform: translateX(100%);
            transition: transform .3s ease;
            overflow-y: auto;
        }

        body.ky-menu-open .ky-drawer {
            transform: translateX(0);
        }

        body.ky-menu-open::after {
            content: "";
            position: fixed;
            inset: var(--ky-nav-h) 0 0 0;
            background: rgba(0, 0, 0, .55);
            z-index: 65;
        }

        .ky-drawer-close {
            align-self: flex-end;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            color: var(--ky-text);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
            background: rgba(255,255,255,.04);
            border: 1px solid rgba(255,255,255,.06);
            line-height: 1;
        }

        .ky-drawer-close:hover {
            color: var(--ky-primary);
        }

        .ky-drawer-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin: 0 0 24px;
        }

        .ky-drawer-list li {
            margin: 0;
        }

        .ky-drawer-list a {
            display: block;
            padding: 12px 10px;
            color: var(--ky-muted);
            font-weight: 500;
            font-size: 15px;
            border-left: 2px solid transparent;
            transition: all .2s;
        }

        .ky-drawer-list a:hover {
            color: var(--ky-primary);
            border-left-color: var(--ky-primary);
            background: rgba(62,240,198,.06);
        }

        .ky-drawer-list a.active {
            color: var(--ky-primary);
            border-left-color: var(--ky-primary);
            background: rgba(62,240,198,.08);
        }

        .ky-drawer .ky-btn {
            width: 100%;
            margin-top: auto;
        }

        @media (max-width: 1023px) {
            .ky-navlist,
            .ky-nav-cta {
                display: none;
            }

            .ky-burger {
                display: inline-flex;
            }

            .ky-nav {
                gap: 14px;
            }

            .ky-logo {
                font-size: 15px;
            }
        }

        @media (min-width: 1024px) {
            .ky-drawer {
                display: none;
            }
        }

        .ky-page-main {
            padding-top: calc(var(--ky-nav-h) + 48px);
            min-height: 70vh;
            position: relative;
        }

        .ky-breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--ky-muted);
            margin-bottom: 28px;
            padding: 10px 0;
        }

        .ky-breadcrumb a {
            color: var(--ky-muted);
            transition: color .2s;
        }

        .ky-breadcrumb a:hover {
            color: var(--ky-primary);
        }

        .ky-breadcrumb .sep {
            color: rgba(255,255,255,.18);
        }

        .ky-breadcrumb .current {
            color: var(--ky-text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 280px;
        }

        .ky-article-wrap {
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            gap: 56px;
            align-items: start;
        }

        .ky-article-main {
            min-width: 0;
        }

        .ky-article-head {
            margin-bottom: 32px;
        }

        .ky-article-cats {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 18px;
        }

        .ky-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            background: rgba(62, 240, 198, .1);
            color: var(--ky-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border: 1px solid rgba(62, 240, 198, .18);
            line-height: 1.5;
        }

        .ky-badge-accent {
            background: rgba(255, 93, 124, .1);
            color: var(--ky-accent);
            border-color: rgba(255, 93, 124, .2);
        }

        .ky-article-head h1 {
            font-size: clamp(28px, 4.2vw, 46px);
            line-height: 1.22;
            font-weight: 800;
            color: #fff;
            letter-spacing: -.01em;
            margin: 0 0 18px;
        }

        .ky-article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 22px;
            color: var(--ky-muted);
            font-size: 14px;
            padding-top: 18px;
            border-top: 1px solid var(--ky-line-soft);
        }

        .ky-article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .ky-meta-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--ky-warm);
            display: inline-block;
        }

        .ky-article-figure {
            border-radius: var(--ky-radius);
            overflow: hidden;
            background: var(--ky-card);
            border: 1px solid var(--ky-border);
            margin-bottom: 32px;
        }

        .ky-article-figure img {
            width: 100%;
            aspect-ratio: 16 / 7;
            object-fit: cover;
        }

        .ky-article-body,
        .ky-article-cms {
            font-size: 17px;
            line-height: 2;
            color: #dbe3ec;
            word-wrap: break-word;
        }

        .ky-article-body > * + *,
        .ky-article-cms > * + * {
            margin-top: 1.15em;
        }

        .ky-article-body h1,
        .ky-article-cms h1,
        .ky-article-body h2,
        .ky-article-cms h2 {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            line-height: 1.4;
            margin-top: 1.8em;
            letter-spacing: -.01em;
            padding-bottom: 8px;
        }

        .ky-article-body h3,
        .ky-article-cms h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-top: 1.6em;
            line-height: 1.45;
        }

        .ky-article-body p,
        .ky-article-cms p {
            max-width: 45em;
            color: #c6d0dc;
        }

        .ky-article-body a,
        .ky-article-cms a {
            color: var(--ky-primary);
            border-bottom: 1px solid rgba(62,240,198,.3);
            transition: all .2s;
        }

        .ky-article-body a:hover,
        .ky-article-cms a:hover {
            border-bottom-color: var(--ky-primary);
            color: #9ef7e1;
        }

        .ky-article-body blockquote,
        .ky-article-cms blockquote {
            border-left: 3px solid var(--ky-primary);
            background: rgba(255, 255, 255, .026);
            padding: 18px 22px;
            margin: 2em 0;
            color: var(--ky-muted);
            border-radius: 0 12px 12px 0;
        }

        .ky-article-body blockquote p,
        .ky-article-cms blockquote p {
            color: var(--ky-muted);
            margin: 0;
        }

        .ky-article-body code,
        .ky-article-cms code {
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
            background: rgba(0, 0, 0, .32);
            border: 1px solid rgba(255,255,255,.06);
            border-radius: 6px;
            padding: 2px 8px;
            font-size: .92em;
            color: #e5ffd9;
        }

        .ky-article-body pre,
        .ky-article-cms pre {
            background: #0A0E13;
            border: 1px solid rgba(255,255,255,.06);
            border-radius: 12px;
            padding: 22px;
            overflow-x: auto;
            line-height: 1.7;
            margin: 2em 0;
        }

        .ky-article-body pre code,
        .ky-article-cms pre code {
            background: transparent;
            border: none;
            padding: 0;
            color: #a7f3d4;
            font-size: 14px;
        }

        .ky-article-body img,
        .ky-article-cms img {
            border-radius: 12px;
            width: auto;
            max-width: 100%;
            height: auto;
        }

        .ky-article-body ul,
        .ky-article-cms ul,
        .ky-article-body ol,
        .ky-article-cms ol {
            padding-left: 1.2em;
            max-width: 45em;
        }

        .ky-article-body ul,
        .ky-article-cms ul {
            list-style: disc;
        }

        .ky-article-body ol,
        .ky-article-cms ol {
            list-style: decimal;
        }

        .ky-article-body li + li,
        .ky-article-cms li + li {
            margin-top: 6px;
        }

        .ky-article-body table,
        .ky-article-cms table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            line-height: 1.7;
            margin: 2em 0;
        }

        .ky-article-body table td,
        .ky-article-body table th,
        .ky-article-cms table td,
        .ky-article-cms table th {
            border-bottom: 1px solid rgba(255,255,255,.09);
            padding: 12px 10px;
            text-align: left;
            color: #bfcad6;
            vertical-align: top;
        }

        .ky-article-body table th,
        .ky-article-cms table th {
            color: #fff;
            font-weight: 700;
            background: rgba(255,255,255,.02);
        }

        .ky-article-body table tr:last-child td,
        .ky-article-cms table tr:last-child td {
            border-bottom: 0;
        }

        .ky-article-body hr,
        .ky-article-cms hr {
            border: none;
            border-top: 1px solid var(--ky-border);
            margin: 3em 0;
        }

        .ky-article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            margin-top: 44px;
            padding-top: 24px;
            border-top: 1px solid var(--ky-line-soft);
        }

        .ky-article-tags label {
            font-size: 14px;
            color: var(--ky-muted);
            margin-right: 4px;
        }

        .ky-tag {
            display: inline-flex;
            align-items: center;
            border-radius: 8px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            padding: 5px 12px;
            font-size: 13px;
            color: var(--ky-muted);
            transition: all .2s;
            line-height: 1.5;
        }

        .ky-tag:hover {
            color: var(--ky-primary);
            border-color: rgba(62,240,198,.4);
            background: rgba(62, 240, 198, .06);
        }

        .ky-article-aside {
            display: flex;
            flex-direction: column;
            gap: 24px;
            min-width: 0;
        }

        .ky-aside-card {
            background: rgba(255, 255, 255, .035);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius);
            padding: 24px;
        }

        .ky-aside-card .eyebrow {
            font-size: 13px;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--ky-primary);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .ky-aside-card h2 {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .ky-aside-links {
            display: flex;
            flex-direction: column;
            margin: 0;
        }

        .ky-aside-links li {
            border-bottom: 1px solid rgba(255,255,255,.05);
            margin: 0;
        }

        .ky-aside-links li:last-child {
            border-bottom: 0;
        }

        .ky-aside-links a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 13px 2px;
            font-size: 15px;
            color: #dfe6ee;
            font-weight: 500;
            transition: all .2s;
        }

        .ky-aside-links a small {
            color: var(--ky-warm);
            font-size: 12px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .ky-aside-links a:hover {
            color: var(--ky-primary);
            padding-left: 6px;
        }

        .ky-safety-card {
            border-color: rgba(255, 190, 107, .22);
            background: rgba(255, 190, 107, .03);
        }

        .ky-safety-card h2 {
            color: #FFD9A1;
        }

        .ky-safety-list {
            display: grid;
            gap: 12px;
            margin-top: 4px;
        }

        .ky-safety-list li {
            position: relative;
            padding-left: 18px;
            font-size: 14px;
            color: var(--ky-muted);
            line-height: 1.7;
        }

        .ky-safety-list li::before {
            content: "";
            position: absolute;
            left: 2px;
            top: .7em;
            width: 5px;
            height: 5px;
            background: var(--ky-warm);
            border-radius: 50%;
        }

        .ky-aside-button {
            width: 100%;
            margin-top: 10px;
        }

        @media (min-width: 1024px) {
            .ky-article-wrap {
                grid-template-columns: minmax(0, 1fr) 340px;
            }

            .ky-article-aside {
                position: sticky;
                top: 96px;
            }
        }

        .ky-article-empty {
            border: 1px dashed rgba(255,255,255,.12);
            border-radius: var(--ky-radius);
            background: rgba(255,255,255,.025);
            padding: clamp(40px, 6vw, 72px);
            text-align: center;
        }

        .ky-article-empty .icon {
            width: 72px;
            height: 72px;
            border-radius: 20px;
            margin: 0 auto 22px;
            background: rgba(62,240,198,.07);
            border: 1px solid rgba(62,240,198,.2);
            position: relative;
        }

        .ky-article-empty .icon::before {
            content: "";
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 28px;
            height: 28px;
            border: 3px solid var(--ky-primary);
            border-top-color: transparent;
            border-radius: 50%;
        }

        .ky-article-empty h2 {
            font-size: 22px;
            margin-bottom: 12px;
            color: #fff;
        }

        .ky-article-empty p {
            color: var(--ky-muted);
            margin-bottom: 24px;
        }

        .ky-related-top {
            margin-top: 96px;
        }

        .ky-related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .ky-related-card {
            background: linear-gradient(0deg, rgba(255,255,255,.04), rgba(255,255,255,.03)), var(--ky-surface);
            border: 1px solid rgba(255,255,255,.07);
            border-radius: var(--ky-radius);
            padding: 26px;
            position: relative;
            overflow: hidden;
            transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
        }

        .ky-related-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 85% 10%, rgba(62,240,198,.08), transparent 40%);
            pointer-events: none;
        }

        .ky-related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(62,240,198,.35);
            box-shadow: 0 18px 42px rgba(0,0,0,.26);
        }

        .ky-related-card .num {
            font-size: 14px;
            color: var(--ky-primary);
            font-weight: 700;
            margin-bottom: 26px;
            display: block;
        }

        .ky-related-card h3 {
            font-size: 18px;
            line-height: 1.5;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .ky-related-card p {
            color: var(--ky-muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .ky-related-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            margin-top: 20px;
            font-size: 14px;
            color: #fff;
            font-weight: 600;
            transition: color .2s, gap .2s;
        }

        .ky-related-card:hover .ky-related-link {
            color: var(--ky-primary);
            gap: 11px;
        }

        .ky-section-footer {
            margin-top: 96px;
        }

        .ky-article-cta {
            position: relative;
            border-radius: var(--ky-radius-lg);
            background:
                radial-gradient(circle at 80% 20%, rgba(62,240,198,.2), transparent 30%),
                linear-gradient(120deg, rgba(62,240,198,.1), rgba(255,255,255,.02) 46%, rgba(255,93,124,.08)),
                var(--ky-card);
            border: 1px solid rgba(255,255,255,.08);
            padding: clamp(32px, 5vw, 60px);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 26px;
            overflow: hidden;
        }

        .ky-article-cta::before {
            content: "";
            position: absolute;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            right: -60px;
            top: -100px;
            background: rgba(62,240,198,.08);
            filter: blur(30px);
        }

        .ky-article-cta .left {
            max-width: 680px;
            position: relative;
            z-index: 1;
        }

        .ky-article-cta .eyebrow {
            font-size: 13px;
            letter-spacing: .1em;
            color: var(--ky-primary);
            font-weight: 700;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .ky-article-cta h2 {
            font-size: clamp(22px, 3.2vw, 34px);
            line-height: 1.3;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .ky-article-cta p {
            font-size: 15px;
            color: var(--ky-muted);
            line-height: 1.9;
        }

        .ky-article-cta .side {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            position: relative;
            z-index: 1;
        }

        @media (max-width: 820px) {
            .ky-related-grid {
                grid-template-columns: 1fr;
            }

            .ky-article-cta {
                flex-direction: column;
                align-items: flex-start;
            }

            .ky-article-cta .side {
                width: 100%;
            }

            .ky-article-cta .side .ky-btn {
                flex: 1;
            }
        }

        .ky-footer {
            margin-top: 96px;
            background: #070B0F;
            border-top: 1px solid rgba(255,255,255,.05);
            padding: 72px 0 28px;
            position: relative;
            z-index: 1;
        }

        .ky-footer-grid {
            display: grid;
            grid-template-columns: 1.3fr .8fr 1fr 1.2fr;
            gap: 34px;
            margin-bottom: 44px;
        }

        .ky-footer-brand .ky-logo {
            font-size: 18px;
            margin-bottom: 16px;
        }

        .ky-footer-brand p {
            color: var(--ky-muted);
            font-size: 14px;
            line-height: 1.9;
            max-width: 32em;
            margin-top: 16px;
        }

        .ky-footer-col-title {
            font-size: 15px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

        .ky-footer ul {
            margin: 0;
            padding: 0;
        }

        .ky-footer li {
            margin: 0 0 10px;
        }

        .ky-footer li a {
            color: var(--ky-muted);
            font-size: 14px;
            line-height: 1.8;
            transition: color .2s;
        }

        .ky-footer li a:hover {
            color: var(--ky-primary);
        }

        .ky-footer-col-about {
            color: var(--ky-muted);
            font-size: 13px;
            line-height: 1.85;
        }

        .ky-footer-hr {
            border-top: 1px solid rgba(255,255,255,.06);
            margin-bottom: 24px;
        }

        .ky-footer-note {
            text-align: center;
            color: rgba(255, 255, 255, .38);
            font-size: 12.5px;
            line-height: 1.9;
            max-width: 860px;
            margin: 0 auto 22px;
        }

        .ky-copyright {
            display: flex;
            flex-direction: column;
            gap: 6px;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: rgba(255, 255, 255, .3);
            font-size: 13px;
        }

        .ky-copyright a {
            color: rgba(255, 255, 255, .45);
            transition: color .2s;
        }

        .ky-copyright a:hover {
            color: var(--ky-primary);
        }

        @media (max-width: 1023px) {
            .ky-footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .ky-footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 640px) {
            .ky-footer-grid {
                grid-template-columns: 1fr;
            }

            .ky-footer {
                padding-top: 52px;
            }

            .ky-article-body {
                font-size: 16px;
            }

            .ky-article-body p {
                max-width: 100%;
            }

            .ky-page-main {
                padding-top: calc(var(--ky-nav-h) + 24px);
            }

            .ky-related-top {
                margin-top: 64px;
            }

            .ky-article-cta .side .ky-btn {
                flex: 1 1 100%;
            }
        }

        @media (max-width: 480px) {
            .ky-container {
                padding-inline: 16px;
            }

            .ky-nav {
                padding-inline: 14px;
            }

            .ky-article-cta {
                padding: 26px 18px;
            }
        }

/* roulang page: category1 */
:root{
  --bg:#0B0F14;
  --surface:#121820;
  --card:#18212C;
  --card-2:#1B2532;
  --primary:#3EF0C6;
  --primary-deep:#05241D;
  --coral:#FF5D7C;
  --amber:#FFBE6B;
  --text:#EAF0F6;
  --muted:#9AA7B5;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.14);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-sm:0 10px 30px rgba(0,0,0,0.24);
  --shadow-lg:0 18px 60px rgba(0,0,0,0.38);
  --glow:0 0 24px rgba(62,240,198,0.32);
  --ease:0.25s cubic-bezier(0.2,0.7,0.2,1);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4,h5,h6{line-height:1.24;margin:0;text-wrap:balance}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
[class^="ky-"]{box-sizing:border-box}
[id]{scroll-margin-top:92px}
.ky-container{max-width:1240px;margin-inline:auto;padding-left:24px;padding-right:24px}
@media(max-width:640px){.ky-container{padding-left:16px;padding-right:16px}}
.ky-section{padding:96px 0}
@media(max-width:1024px){.ky-section{padding:72px 0}}
@media(max-width:640px){.ky-section{padding:56px 0}}

/* Header */
.ky-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(10,13,18,0.84);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(62,240,198,0.2);
}
.ky-nav{
  max-width:1240px;
  margin:0 auto;
  height:72px;
  padding:0 24px;
  display:flex;
  align-items:center;
  gap:22px;
}
@media(max-width:640px){.ky-nav{padding:0 16px;gap:14px}}
.ky-logo{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:#fff;
  font-size:19px;
  font-weight:700;
  letter-spacing:0.02em;
  white-space:nowrap;
}
.ky-logo-mark{
  position:relative;
  width:18px;
  height:18px;
  border-radius:6px;
  background:var(--primary);
  box-shadow:0 0 18px rgba(62,240,198,0.46);
  flex:0 0 auto;
}
.ky-logo-mark::after{
  content:"";
  position:absolute;
  inset:5px;
  border-radius:3px;
  background:var(--bg);
}
.ky-logo-mark::before{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:5px;
  height:2px;
  background:var(--bg);
  transform:translate(-50%,-50%);
  z-index:1;
}
.ky-navlist{
  display:flex;
  align-items:center;
  flex:1;
  gap:4px;
  margin:0;
  padding:0;
}
.ky-navlist a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:46px;
  padding:0 3px;
  margin:0 10px;
  color:#d5dce4;
  font-size:15px;
  line-height:1;
  border-bottom:2px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.ky-navlist a:hover{
  color:#fff;
  border-color:rgba(62,240,198,0.5);
}
.ky-navlist a.active{
  color:var(--primary);
  border-color:var(--primary);
  text-shadow:0 0 16px rgba(62,240,198,0.42);
}
.ky-nav-cta{
  flex:0 0 auto;
  margin-left:4px;
}
.ky-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:10px 22px;
  border:none;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  text-decoration:none;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.ky-btn-primary{
  background:var(--primary);
  color:var(--primary-deep);
  box-shadow:0 6px 26px rgba(62,240,198,0.16);
}
.ky-btn-primary:hover{
  background:#b8ffe8;
  transform:translateY(-2px);
  box-shadow:0 10px 34px rgba(62,240,198,0.36);
}
.ky-btn-outline{
  background:rgba(255,255,255,0.04);
  color:var(--text);
  border:1px solid rgba(255,255,255,0.22);
}
.ky-btn-outline:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-2px);
  background:rgba(62,240,198,0.06);
}
.ky-btn-sm{min-height:42px;padding:8px 16px;border-radius:10px;font-size:14px}
.ky-btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.ky-burger{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--line-strong);
  border-radius:12px;
  color:#fff;
  cursor:pointer;
  padding:0;
  position:relative;
  z-index:1006;
}
.ky-burger .bar, .ky-burger .bar::before, .ky-burger .bar::after{
  content:"";
  display:block;
  width:19px;
  height:2px;
  background:currentColor;
  border-radius:4px;
  position:relative;
  transition:transform var(--ease),opacity var(--ease);
}
.ky-burger .bar::before{position:absolute;top:-6px}
.ky-burger .bar::after{position:absolute;top:6px}
@media(max-width:1023px){
  .ky-navlist{
    position:fixed;
    top:0;left:0;right:0;bottom:0;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:linear-gradient(150deg,rgba(8,10,15,0.98),rgba(13,19,27,0.98));
    padding:40px 20px;
    opacity:0;
    visibility:hidden;
    transform:translateY(14px);
    transition:opacity var(--ease),visibility var(--ease),transform var(--ease);
    z-index:1005;
    margin:0;
  }
  .ky-navlist.open{opacity:1;visibility:visible;transform:none}
  .ky-navlist li{margin:2px 0}
  .ky-navlist a{font-size:22px;padding:12px 14px}
  .ky-burger{display:inline-flex}
  .ky-nav-cta{display:none}
  .ky-logo{position:relative;z-index:1007}
  .ky-burger.is-open .bar{background:transparent}
  .ky-burger.is-open .bar::before{top:0;transform:rotate(45deg)}
  .ky-burger.is-open .bar::after{top:0;transform:rotate(-45deg)}
}

/* Footer */
.ky-footer{
  background:#080B0F;
  border-top:1px solid rgba(255,255,255,0.06);
  color:#9AA7B5;
}
.ky-footer .ky-container{padding-top:32px;padding-bottom:28px}
.ky-footer-grid{
  display:grid;
  grid-template-columns:1.35fr 0.8fr 1fr 1.1fr;
  gap:38px;
  padding:44px 0 32px;
}
@media(max-width:1024px){.ky-footer-grid{grid-template-columns:1fr 1fr;row-gap:34px}}
@media(max-width:640px){.ky-footer-grid{grid-template-columns:1fr;gap:30px}}
.ky-footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;max-width:34em}
.ky-footer-col-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.ky-footer ul{display:flex;flex-direction:column;gap:10px}
.ky-footer ul a{color:var(--muted);font-size:14px;transition:color var(--ease)}
.ky-footer ul a:hover{color:var(--primary)}
.ky-footer-hr{height:1px;background:rgba(255,255,255,0.06)}
.ky-footer-note{
  padding:22px 0 4px;
  font-size:13px;
  line-height:1.9;
  color:#758391;
}
.ky-copyright{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:16px;
  font-size:13px;
  color:#758391;
  border-top:1px solid rgba(255,255,255,0.04);
  margin-top:10px;
}
.ky-copyright a{color:#8e9aa8}
.ky-copyright a:hover{color:var(--primary)}

/* Hero */
.ky-cat-hero{
  position:relative;
  overflow:hidden;
  padding:96px 0 84px;
  background:
    radial-gradient(920px 320px at 88% 0%,rgba(62,240,198,0.16),transparent 62%),
    radial-gradient(680px 340px at 2% 96%,rgba(255,93,124,0.1),transparent 58%),
    #0D1319;
  border-bottom:1px solid rgba(62,240,198,0.12);
}
.ky-cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') no-repeat center/cover;
  opacity:0.1;
  mix-blend-mode:screen;
}
.ky-hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.02fr 0.98fr;
  gap:clamp(30px,6vw,78px);
  align-items:center;
}
@media(max-width:1023px){.ky-hero-grid{grid-template-columns:1fr;gap:44px}}
.ky-hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--primary);
  font-size:13px;
  letter-spacing:0.14em;
  background:rgba(62,240,198,0.08);
  border:1px solid rgba(62,240,198,0.22);
  padding:7px 13px;
  border-radius:999px;
  margin-bottom:24px;
}
.ky-hero-kicker::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 12px var(--primary);
}
.ky-hero-title{
  font-size:clamp(38px,6.5vw,68px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:0.01em;
  color:#fff;
}
.ky-hero-title .ky-title-mark{
  display:block;
  color:var(--primary);
  margin-top:12px;
  text-shadow:0 0 34px rgba(62,240,198,0.22);
}
.ky-hero-lead{
  margin-top:28px;
  max-width:34em;
  font-size:17px;
  color:#bdc8d3;
  line-height:1.9;
}
.ky-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.ky-hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:36px;
}
.ky-hero-trust span{
  font-size:13px;
  color:var(--muted);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  padding:8px 14px;
  border-radius:999px;
}
.ky-hero-trust span::before{
  content:"✓";
  color:var(--primary);
  margin-right:6px;
}
.ky-hero-visual{position:relative}
.ky-rail-card{
  background:linear-gradient(160deg,var(--card),var(--card-2));
  border:1px solid rgba(62,240,198,0.18);
  border-radius:26px;
  padding:12px;
  box-shadow:0 24px 70px rgba(0,0,0,0.34);
  transform:rotate(0.4deg);
}
.ky-rail-card img{
  width:100%;
  border-radius:18px;
  aspect-ratio:5/6;
  object-fit:cover;
  background:linear-gradient(145deg,#24313f,#141c25);
}
.ky-chip{
  position:absolute;
  left:-20px;
  top:36px;
  font-size:12px;
  color:#fff;
  background:rgba(9,13,18,0.7);
  border:1px solid rgba(62,240,198,0.4);
  border-radius:999px;
  padding:9px 14px;
  backdrop-filter:blur(10px);
  box-shadow:0 4px 18px rgba(0,0,0,0.18);
}
@media(max-width:1023px){.ky-chip{left:4px}}
.ky-chip-b{
  left:auto;
  right:-14px;
  top:auto;
  bottom:40px;
  border-color:rgba(255,93,124,0.36);
}
@media(max-width:1023px){.ky-chip-b{right:4px}}
.ky-chip-c{
  left:-8px;
  top:auto;
  bottom:-10px;
  color:var(--primary);
}
@media(max-width:1023px){.ky-chip-c{left:8px}}

/* Section headings */
.ky-section-head{
  max-width:820px;
  margin:0 auto 52px;
  text-align:center;
}
.ky-kicker{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--primary);
  font-size:13px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.ky-kicker::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--primary);
}
.ky-h2{
  font-size:clamp(28px,4vw,40px);
  font-weight:700;
  color:#fff;
  letter-spacing:0.01em;
}
.ky-section-head p,.ky-section-intro{
  margin:22px auto 0;
  max-width:720px;
  font-size:16px;
  color:var(--muted);
  line-height:1.9;
}
.ky-section-head.ky-left{
  max-width:880px;
  margin:0 0 44px;
  text-align:left;
}

/* Call Panel */
.ky-call-panel{
  display:grid;
  grid-template-columns:0.85fr 1.6fr;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  padding:22px;
  box-shadow:var(--shadow-sm);
}
@media(max-width:1023px){.ky-call-panel{grid-template-columns:1fr}}
.ky-call-main{
  padding:28px;
  background:linear-gradient(140deg,rgba(62,240,198,0.1),rgba(255,93,124,0.04));
  border-radius:14px;
}
.ky-call-main h3{font-size:20px;color:#fff;margin-bottom:14px}
.ky-call-main p{color:var(--muted);font-size:14px;line-height:1.8}
.ky-call-list{
  display:flex;
  flex-direction:column;
  gap:0;
}
.ky-call-list li{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:16px;
  padding:25px 14px;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.ky-call-list li:last-child{border-bottom:0}
.ky-call-list strong{
  font-size:30px;
  font-weight:800;
  line-height:1;
  color:var(--primary);
  margin-top:2px;
  font-family:var(--font);
}
.ky-call-list h4{color:#fff;font-size:17px;font-weight:600;margin-bottom:8px}
.ky-call-list p{color:var(--muted);font-size:14px;line-height:1.8}
@media(max-width:640px){
  .ky-call-list li{grid-template-columns:42px 1fr;padding:22px 0}
  .ky-call-list strong{font-size:24px}
}

/* Detail area with aside */
.ky-detail{
  background:#0E1319;
  border-block:1px solid rgba(255,255,255,0.04);
}
.ky-detail-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:26px;
}
@media(max-width:1023px){.ky-detail-grid{grid-template-columns:1fr}}
.ky-main-col,.ky-aside-col{min-width:0}
.ky-vertical-card{
  display:grid;
  grid-template-columns:230px minmax(0,1fr);
  gap:24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:16px;
  margin-bottom:20px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.ky-vertical-card:hover{
  transform:translateY(-3px);
  border-color:rgba(62,240,198,0.34);
  box-shadow:var(--shadow-sm);
}
.ky-vc-thumb{position:relative;overflow:hidden;border-radius:14px;min-height:150px}
.ky-vc-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;background:linear-gradient(145deg,#263140,#11161d)}
.ky-vc-tag{
  position:absolute;
  left:10px;
  bottom:10px;
  font-size:12px;
  color:#fff;
  background:rgba(8,11,16,0.7);
  border:1px solid rgba(62,240,198,0.4);
  padding:5px 10px;
  border-radius:999px;
  backdrop-filter:blur(8px);
}
.ky-vc-body{padding:10px 8px 4px 4px}
.ky-vc-body h3{font-size:18px;color:#fff;font-weight:600;line-height:1.5}
.ky-vc-body h3 a{transition:color var(--ease)}
.ky-vc-body h3 a:hover{color:var(--primary)}
.ky-vc-body > p{margin-top:12px;color:var(--muted);font-size:14px;line-height:1.85}
.ky-vc-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.ky-vc-meta .ky-tag{
  font-size:12px;
  color:var(--amber);
  background:rgba(255,190,107,0.08);
  border:1px solid rgba(255,190,107,0.22);
  padding:5px 10px;
  border-radius:999px;
}
.ky-text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--text);
  transition:color var(--ease);
}
.ky-text-link:hover{color:var(--primary)}
.ky-text-link::after{content:"→";color:var(--primary)}
@media(max-width:640px){
  .ky-vertical-card{grid-template-columns:1fr;padding:12px}
  .ky-vc-body{padding:14px 6px 6px}
}

/* Aside */
.ky-aside-col{display:flex;flex-direction:column;gap:18px}
.ky-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
}
.ky-panel h3{color:#fff;font-size:17px;margin-bottom:16px;font-weight:600}
.ky-anchor li{
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.ky-anchor li:last-child{border-bottom:0}
.ky-anchor a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:13px 2px;
  color:var(--muted);
  font-size:14px;
  transition:color var(--ease);
}
.ky-anchor a:hover{color:var(--primary);padding-left:6px}
.ky-anchor a::after{content:"↗";color:var(--primary);opacity:0;transition:opacity var(--ease)}
.ky-anchor a:hover::after{opacity:1}
.ky-panel-coral{
  border-color:rgba(255,93,124,0.28);
  background:linear-gradient(160deg,var(--card),rgba(255,93,124,0.08));
}
.ky-panel-badge{
  display:inline-block;
  font-size:12px;
  color:var(--coral);
  border:1px solid rgba(255,93,124,0.4);
  border-radius:999px;
  padding:5px 11px;
  margin-bottom:14px;
  background:rgba(255,93,124,0.08);
}
.ky-panel-coral p{color:var(--muted);font-size:14px;line-height:1.9}
.ky-sub-nav{display:flex;flex-direction:column;gap:4px}
.ky-sub-nav a{
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,0.06);
  color:var(--text);
  font-size:15px;
  font-weight:500;
  transition:color var(--ease),padding-left var(--ease);
}
.ky-sub-nav a:hover{color:var(--primary);padding-left:8px;border-bottom-color:rgba(62,240,198,0.3)}

/* Scenes */
.ky-scene{position:relative;background:linear-gradient(180deg,#0c1117,#10161f)}
.ky-scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
@media(max-width:760px){.ky-scene-grid{grid-template-columns:1fr}}
.ky-scene-item{
  display:flex;
  gap:18px;
  background:rgba(255,255,255,0.028);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  transition:border-color var(--ease),background var(--ease);
}
.ky-scene-item:hover{
  border-color:rgba(62,240,198,0.26);
  background:rgba(62,240,198,0.03);
}
.ky-scene-icon{
  width:42px;
  height:42px;
  flex:0 0 auto;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  background:rgba(62,240,198,0.1);
  border:1px solid rgba(62,240,198,0.24);
  font-size:20px;
  font-weight:700;
}
.ky-scene-item h3{color:#fff;font-size:17px;font-weight:600;margin-bottom:8px}
.ky-scene-item p{color:var(--muted);font-size:14px;line-height:1.85}
@media(max-width:520px){.ky-scene-item{padding:18px}}

/* Process */
.ky-process{
  background:#0B0F14;
  border-block:1px solid rgba(255,255,255,0.04);
}
.ky-process-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  overflow:hidden;
}
@media(max-width:1023px){.ky-process-strip{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.ky-process-strip{grid-template-columns:1fr}}
.ky-process-step{
  padding:32px 26px;
  border-left:1px solid var(--line);
  background:rgba(255,255,255,0.012);
  position:relative;
  transition:background var(--ease);
}
.ky-process-step:first-child{border-left:0}
@media(max-width:1023px){
  .ky-process-step:nth-child(3){border-left:0}
  .ky-process-step:nth-child(n+3){border-top:1px solid var(--line)}
}
@media(max-width:640px){.ky-process-step{border-left:0;border-top:1px solid var(--line)}.ky-process-step:first-child{border-top:0}}
.ky-process-step:hover{background:rgba(62,240,198,0.035)}
.ky-process-step strong{
  display:block;
  font-size:34px;
  font-weight:800;
  color:var(--primary);
  margin-bottom:18px;
  font-family:var(--font);
  text-shadow:0 0 20px rgba(62,240,198,0.2);
}
.ky-process-step h3{color:#fff;font-size:17px;font-weight:600;margin-bottom:8px}
.ky-process-step p{color:var(--muted);font-size:14px;line-height:1.82}

/* FAQ */
.ky-faq{background:#0E141B;border-top:1px solid rgba(255,255,255,0.04)}
.ky-faq-grid{
  display:grid;
  grid-template-columns:0.8fr 1.4fr;
  gap:40px;
}
@media(max-width:1023px){.ky-faq-grid{grid-template-columns:1fr;gap:28px}}
.ky-faq-side p{margin:22px 0 30px;color:var(--muted);font-size:15px;line-height:1.9}
.ky-faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  margin-bottom:14px;
  transition:border-color var(--ease);
}
.ky-faq-item.open{border-color:rgba(62,240,198,0.34)}
.ky-faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 22px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  cursor:pointer;
  text-align:left;
  border-radius:16px;
}
.ky-faq-item.open .ky-faq-q{color:var(--primary)}
.ky-faq-plus{
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:50%;
  background:rgba(255,255,255,0.07);
  position:relative;
  transition:background var(--ease),transform var(--ease);
}
.ky-faq-plus::before,.ky-faq-plus::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--text);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.ky-faq-plus::before{width:10px;height:2px}
.ky-faq-plus::after{width:2px;height:10px}
.ky-faq-item.open .ky-faq-plus{background:var(--primary);transform:rotate(135deg)}
.ky-faq-item.open .ky-faq-plus::before,.ky-faq-item.open .ky-faq-plus::after{background:var(--primary-deep)}
.ky-faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows 0.32s cubic-bezier(0.2,0.7,0.2,1);
}
.ky-faq-item.open .ky-faq-a{grid-template-rows:1fr}
.ky-faq-inner{overflow:hidden;padding:0 22px}
.ky-faq-inner p{
  color:var(--muted);
  padding-bottom:22px;
  font-size:14px;
  line-height:1.9;
  border-bottom:1px solid var(--line);
}
.ky-faq-item:last-child .ky-faq-inner p{border-bottom:0}

/* CTA */
.ky-cta-section{padding:96px 0 60px}
@media(max-width:640px){.ky-cta-section{padding:64px 0 40px}}
.ky-cta-card{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:center;
  gap:28px;
  padding:48px;
  background:
    radial-gradient(520px 240px at 96% 20%,rgba(62,240,198,0.18),transparent 60%),
    linear-gradient(130deg,#0F2421,#111B26);
  border:1px solid rgba(62,240,198,0.2);
  border-radius:24px;
  box-shadow:0 14px 44px rgba(0,0,0,0.2);
}
@media(max-width:640px){.ky-cta-card{padding:26px 22px}}
.ky-cta-card h2{
  color:#fff;
  font-size:clamp(24px,3.4vw,32px);
  max-width:18em;
  font-weight:700;
  line-height:1.35;
}
.ky-cta-card p{margin-top:16px;max-width:34em;color:var(--muted);font-size:15px;line-height:1.85}
.ky-cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.ky-cta-actions .ky-text-link{font-size:14px;color:var(--muted)}
.ky-cta-actions .ky-text-link:hover{color:var(--primary)}

/* Update note */
.ky-update-note{
  padding:40px 0 64px;
  background:transparent;
}
.ky-update-inner{
  display:flex;
  grid-gap:20px;
  align-items:flex-start;
  background:rgba(255,255,255,0.025);
  border:1px dashed rgba(255,255,255,0.12);
  border-radius:18px;
  padding:26px 28px;
}
.ky-update-icon{
  flex:0 0 auto;
  width:42px;
  height:42px;
  color:var(--primary);
  border:1px solid rgba(62,240,198,0.35);
  background:rgba(62,240,198,0.08);
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
}
.ky-update-inner h2{color:#fff;font-size:17px;margin-bottom:8px}
.ky-update-inner p{font-size:14px;color:var(--muted);line-height:1.85}
@media(max-width:640px){.ky-update-inner{flex-direction:column}}

/* General line breaks */
.ky-line{height:1px;background:var(--line);border:0;margin:0}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root {
      --bg: #0B0F14;
      --surface: #121820;
      --card: #18212C;
      --card-2: #1B2532;
      --primary: #3EF0C6;
      --primary-dark: #05241D;
      --accent: #FF5D7C;
      --amber: #FFBE6B;
      --text: #EAF0F6;
      --muted: #9AA7B5;
      --line: rgba(255, 255, 255, 0.08);
      --line-strong: rgba(255, 255, 255, 0.14);
      --header-h: 72px;
      --container: 1240px;
      --radius-lg: 18px;
      --radius-sm: 12px;
      --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.28);
      --shadow-glow: 0 10px 36px rgba(62, 240, 198, 0.16);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    img {
      display: block;
      max-width: 100%;
      width: 100%;
    }

    button {
      font: inherit;
      cursor: pointer;
      background: none;
      border: none;
      color: inherit;
    }

    ul,
    ol {
      list-style: none;
    }

    h1,
    h2,
    h3,
    h4,
    h5 {
      margin: 0;
      line-height: 1.25;
      letter-spacing: 0.01em;
    }

    ::selection {
      background: rgba(62, 240, 198, 0.25);
      color: #fff;
    }

    :focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
    }

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

    .ky-section {
      padding: 96px 0;
    }

    .ky-header {
      position: sticky;
      top: 0;
      left: 0;
      right: 0;
      z-index: 120;
      height: var(--header-h);
      display: flex;
      align-items: center;
      background: rgba(8, 11, 15, 0.72);
      border-bottom: 1px solid rgba(62, 240, 198, 0.28);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
    }

    .ky-nav {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      gap: 22px;
    }

    .ky-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-size: 19px;
      font-weight: 800;
      letter-spacing: 0.02em;
      white-space: nowrap;
    }

    .ky-logo-mark {
      position: relative;
      width: 30px;
      height: 30px;
      border-radius: 9px;
      background: linear-gradient(135deg, var(--primary), #74ffd8);
      box-shadow: 0 0 0 1px rgba(62, 240, 198, 0.3), 0 6px 18px rgba(62, 240, 198, 0.18);
      flex: none;
    }

    .ky-logo-mark::before {
      content: "";
      position: absolute;
      left: 8px;
      top: 12px;
      width: 14px;
      height: 9px;
      background: #071310;
      border-radius: 3px;
      box-shadow: inset 0 -4px 0 var(--primary);
    }

    .ky-logo-mark::after {
      content: "";
      position: absolute;
      left: 13px;
      top: 8px;
      width: 4px;
      height: 7px;
      border-radius: 2px;
      background: var(--primary-dark);
    }

    .ky-navlist {
      display: flex;
      align-items: center;
      gap: 4px;
      margin: 0;
      padding: 0;
    }

    .ky-navlist a {
      position: relative;
      display: inline-flex;
      align-items: center;
      line-height: 72px;
      padding: 0 14px;
      color: var(--muted);
      font-size: 15px;
      border-bottom: 2px solid transparent;
      transition: color 0.2s ease;
    }

    .ky-navlist a::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: -2px;
      height: 2px;
      border-radius: 4px;
      background: transparent;
      box-shadow: none;
    }

    .ky-navlist a:hover {
      color: #fff;
    }

    .ky-navlist a:hover::after {
      background: rgba(62, 240, 198, 0.45);
    }

    .ky-navlist a.active {
      color: var(--primary);
    }

    .ky-navlist a.active::after {
      background: var(--primary);
      box-shadow: 0 0 12px rgba(62, 240, 198, 0.5);
    }

    .ky-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 22px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 700;
      line-height: 1;
      white-space: nowrap;
      transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .ky-btn-primary {
      background: var(--primary);
      color: var(--primary-dark);
    }

    .ky-btn-primary:hover {
      box-shadow: 0 0 0 3px rgba(62, 240, 198, 0.15), 0 12px 34px rgba(62, 240, 198, 0.2);
      transform: translateY(-2px);
      color: var(--primary-dark);
    }

    .ky-btn-ghost {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.22);
      color: var(--text);
    }

    .ky-btn-ghost:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
      background: rgba(62, 240, 198, 0.06);
    }

    .ky-btn-accent {
      background: var(--accent);
      color: #1c060b;
    }

    .ky-btn-accent:hover {
      box-shadow: 0 0 0 3px rgba(255, 93, 124, 0.16), 0 12px 34px rgba(255, 93, 124, 0.16);
      transform: translateY(-2px);
      color: #1c060b;
    }

    .ky-btn-sm {
      min-height: 40px;
      padding: 0 16px;
      font-size: 14px;
    }

    .ky-nav-cta {
      margin-left: auto;
    }

    .ky-burger {
      display: none;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: var(--text);
      position: relative;
    }

    .ky-burger .bar {
      width: 20px;
      height: 2px;
      background: currentColor;
      border-radius: 3px;
      position: relative;
      transition: background 0.2s ease;
    }

    .ky-burger .bar::before,
    .ky-burger .bar::after {
      content: "";
      position: absolute;
      left: 0;
      width: 20px;
      height: 2px;
      border-radius: 3px;
      background: currentColor;
      transition: transform 0.2s ease, top 0.2s ease, background 0.2s ease;
    }

    .ky-burger .bar::before {
      top: -7px;
    }

    .ky-burger .bar::after {
      top: 7px;
    }

    .ky-header.menu-open .ky-burger .bar {
      background: transparent !important;
    }

    .ky-header.menu-open .ky-burger .bar::before {
      top: 0;
      transform: rotate(45deg);
      background: var(--primary);
    }

    .ky-header.menu-open .ky-burger .bar::after {
      top: 0;
      transform: rotate(-45deg);
      background: var(--primary);
    }

    .ky-main {
      background: var(--bg);
    }

    .ky-page-hero {
      position: relative;
      padding: 128px 0 76px;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(11, 15, 20, 0.94) 0%, rgba(11, 15, 20, 0.72) 48%, rgba(11, 15, 20, 0.5) 100%),
        url(/assets/images/backpic/back-2.webp) center center / cover no-repeat;
    }

    .ky-page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background: radial-gradient(circle at 82% 18%, rgba(62, 240, 198, 0.12), transparent 45%);
    }

    .ky-page-hero .ky-container {
      position: relative;
      z-index: 2;
    }

    .ky-breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--muted);
      margin-bottom: 24px;
    }

    .ky-breadcrumb a:hover {
      color: var(--primary);
    }

    .ky-overline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.12em;
      color: var(--primary);
      background: rgba(62, 240, 198, 0.08);
      border: 1px solid rgba(62, 240, 198, 0.22);
      border-radius: 999px;
      padding: 5px 12px;
      margin-bottom: 16px;
    }

    .ky-hero-title {
      font-size: clamp(34px, 5vw, 56px);
      font-weight: 800;
      line-height: 1.16;
      color: #fff;
      max-width: 15em;
    }

    .ky-hero-title .grad {
      color: var(--primary);
    }

    .ky-hero-lead {
      max-width: 46em;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.9;
      margin: 22px 0 30px;
    }

    .ky-hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .ky-mini-tagline {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 26px;
    }

    .ky-mini-tagline li {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-size: 13px;
      color: var(--muted);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--line);
      border-radius: 999px;
      padding: 6px 12px;
    }

    .ky-mini-tagline li::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 3px rgba(62, 240, 198, 0.12);
    }

    .ky-page-hero-media {
      position: relative;
      display: flex;
      justify-content: center;
    }

    .ky-hero-frame {
      position: relative;
      width: min(100%, 520px);
      border-radius: 24px;
      padding: 12px;
      border: 1px solid rgba(62, 240, 198, 0.3);
      background: linear-gradient(145deg, rgba(24, 33, 44, 0.82), rgba(18, 24, 32, 0.68));
      overflow: hidden;
      box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4);
    }

    .ky-hero-frame img {
      border-radius: 18px;
      min-height: 340px;
      object-fit: cover;
      background: linear-gradient(145deg, var(--card), var(--surface));
    }

    .ky-float-chip {
      position: absolute;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      z-index: 3;
      border-radius: 999px;
      font-size: 13px;
      padding: 8px 14px;
      background: rgba(10, 14, 19, 0.82);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: var(--text);
      backdrop-filter: blur(8px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
    }

    .ky-float-chip b {
      color: var(--primary);
    }

    .ky-float-chip-a {
      top: 24px;
      left: -8px;
    }

    .ky-float-chip-b {
      bottom: 60px;
      right: -8px;
    }

    .ky-float-chip-c {
      bottom: -14px;
      left: 36px;
    }

    .ky-section-head {
      max-width: 820px;
      margin-bottom: 48px;
    }

    .ky-section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .ky-section-head h2 {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 800;
      line-height: 1.25;
      color: #fff;
    }

    .ky-section-head p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
      margin-top: 14px;
    }

    .ky-step-yield {
      background: linear-gradient(180deg, var(--bg), rgba(18, 24, 32, 0.6), var(--bg));
      position: relative;
      padding: 96px 0;
    }

    .ky-route {
      position: relative;
      margin: 64px 0 0;
    }

    .ky-route::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 30px;
      bottom: 30px;
      width: 1px;
      transform: translateX(-50%);
      background: linear-gradient(180deg, transparent, rgba(62, 240, 198, 0.3), rgba(255, 255, 255, 0.08), transparent);
    }

    .ky-route-row {
      position: relative;
      display: grid;
      grid-template-columns: 1fr 1fr;
      column-gap: 80px;
      align-items: center;
      padding: 36px 0;
    }

    .ky-route-body {
      max-width: 540px;
      justify-self: end;
      width: 100%;
    }

    .ky-route-row:nth-child(even) .ky-route-body {
      order: -1;
      justify-self: start;
    }

    .ky-route-media {
      justify-self: start;
      width: 100%;
      max-width: 540px;
    }

    .ky-route-row:nth-child(even) .ky-route-media {
      justify-self: end;
    }

    .ky-route-index {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 68px;
      height: 68px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      color: var(--primary);
      background: var(--bg);
      border: 1px solid rgba(62, 240, 198, 0.45);
      box-shadow: 0 0 0 8px var(--bg), 0 0 24px rgba(62, 240, 198, 0.14);
      z-index: 3;
    }

    .ky-route-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--amber);
      background: rgba(255, 190, 107, 0.1);
      border: 1px solid rgba(255, 190, 107, 0.2);
      border-radius: 999px;
      padding: 5px 12px;
      margin-bottom: 14px;
    }

    .ky-route-body h3 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .ky-route-body p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.9;
    }

    .ky-route-checks {
      margin-top: 18px;
      display: grid;
      gap: 10px;
    }

    .ky-route-checks li {
      position: relative;
      padding-left: 28px;
      color: var(--text);
      font-size: 15px;
      line-height: 1.75;
    }

    .ky-route-checks li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: rgba(62, 240, 198, 0.14);
      border: 1px solid rgba(62, 240, 198, 0.45);
    }

    .ky-route-checks li::after {
      content: "";
      position: absolute;
      left: 5px;
      top: 14px;
      width: 6px;
      height: 8px;
      transform: rotate(40deg);
      border: solid var(--primary);
      border-width: 0 1.6px 1.6px 0;
    }

    .ky-route-media .ky-media-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--line-strong);
      background: linear-gradient(145deg, var(--card), var(--surface));
      box-shadow: var(--shadow-card);
      aspect-ratio: 4 / 3;
    }

    .ky-route-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 260px;
      background: linear-gradient(145deg, var(--card), var(--surface));
    }

    .ky-media-desc {
      position: absolute;
      left: 14px;
      bottom: 14px;
      background: rgba(8, 12, 16, 0.78);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 999px;
      padding: 7px 13px;
      backdrop-filter: blur(8px);
      font-size: 13px;
    }

    .ky-safety-note {
      margin-top: -14px;
      padding: 56px 0 0;
    }

    .ky-safety-note-card {
      background: linear-gradient(135deg, rgba(255, 93, 124, 0.1), rgba(255, 190, 107, 0.05));
      border: 1px solid rgba(255, 93, 124, 0.2);
      border-radius: var(--radius-lg);
      padding: 34px;
      display: flex;
      flex-wrap: wrap;
      gap: 28px;
      align-items: center;
      justify-content: space-between;
    }

    .ky-safety-note-card h3 {
      color: #fff;
      font-size: 22px;
      font-weight: 800;
    }

    .ky-safety-note-card p {
      color: var(--muted);
      max-width: 800px;
      margin-top: 8px;
    }

    .ky-safety-note-mark {
      width: 54px;
      height: 54px;
      flex: none;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 93, 124, 0.16);
      border: 1px solid rgba(255, 93, 124, 0.35);
      color: var(--accent);
      font-size: 24px;
    }

    .ky-info-section {
      background: transparent;
      padding: 96px 0;
    }

    .ky-situation-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
      gap: 24px;
      align-items: stretch;
    }

    .ky-situation-card {
      background: linear-gradient(160deg, var(--card), var(--surface));
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-card);
    }

    .ky-situation-card:hover {
      border-color: rgba(62, 240, 198, 0.32);
      transform: translateY(-3px);
      transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    }

    .ky-situation-card h3 {
      color: #fff;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .ky-situation-card p {
      color: var(--muted);
      font-size: 15px;
      line-height: 1.85;
    }

    .ky-situation-steps {
      display: grid;
      gap: 10px;
      margin: 18px 0 0;
      counter-reset: sit;
    }

    .ky-situation-steps li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      color: var(--text);
      font-size: 15px;
    }

    .ky-situation-steps li::before {
      counter-increment: sit;
      content: "0" counter(sit);
      font-weight: 800;
      font-size: 13px;
      color: var(--primary);
      background: rgba(62, 240, 198, 0.08);
      border-radius: 7px;
      padding: 2px 8px;
      margin-top: 2px;
      flex: none;
    }

    .ky-situation-side {
      display: grid;
      gap: 24px;
    }

    .ky-faq-section {
      padding: 96px 0;
      background: linear-gradient(0deg, var(--bg), rgba(18, 24, 32, 0.6), var(--bg));
    }

    .ky-faq-grid {
      display: grid;
      grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.3fr);
      gap: 56px;
      align-items: start;
    }

    .ky-faq-side {
      position: sticky;
      top: 120px;
    }

    .ky-faq-side h2 {
      font-size: clamp(28px, 3.6vw, 36px);
      color: #fff;
      margin: 14px 0 18px;
      line-height: 1.3;
    }

    .ky-faq-side p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .ky-faq-side .ky-btn {
      margin-top: 20px;
    }

    .ky-faq-list {
      display: grid;
      gap: 14px;
    }

    .ky-faq-item {
      background: rgba(18, 24, 32, 0.7);
      border: 1px solid var(--line);
      border-radius: 15px;
      overflow: hidden;
      transition: border-color 0.2s ease, background 0.2s ease;
    }

    .ky-faq-item.open {
      border-color: rgba(62, 240, 198, 0.34);
      background: rgba(18, 24, 32, 0.95);
    }

    .ky-faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      text-align: left;
      min-height: 56px;
      padding: 16px 18px 16px 24px;
      color: var(--text);
      font-size: 16px;
      font-weight: 700;
      line-height: 1.5;
    }

    .ky-faq-q:hover {
      color: var(--primary);
    }

    .ky-faq-icon {
      position: relative;
      flex: none;
      width: 30px;
      height: 30px;
      margin-left: 18px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.16);
      transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    }

    .ky-faq-icon::before,
    .ky-faq-icon::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      width: 12px;
      height: 2px;
      background: var(--text);
      transform: translate(-50%, -50%);
      border-radius: 3px;
      transition: background 0.25s ease, transform 0.25s ease;
    }

    .ky-faq-icon::after {
      transform: translate(-50%, -50%) rotate(90deg);
    }

    .ky-faq-item.open .ky-faq-icon {
      background: rgba(255, 93, 124, 0.14);
      border-color: rgba(255, 93, 124, 0.3);
    }

    .ky-faq-item.open .ky-faq-icon::before {
      background: var(--accent);
    }

    .ky-faq-item.open .ky-faq-icon::after {
      background: var(--accent);
      transform: translate(-50%, -50%) rotate(180deg);
    }

    .ky-faq-answer {
      max-height: 0;
      opacity: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, opacity 0.3s ease;
    }

    .ky-faq-inner {
      padding: 0 26px 20px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.9;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      margin-top: 2px;
    }

    .ky-faq-inner p {
      padding-top: 14px;
    }

    .ky-cta-panel {
      padding: 96px 0 110px;
    }

    .ky-cta-box {
      position: relative;
      background: linear-gradient(115deg, rgba(62, 240, 198, 0.12), rgba(18, 24, 32, 0.92) 38%, rgba(255, 93, 124, 0.1));
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 24px;
      overflow: hidden;
      padding: clamp(34px, 6vw, 72px);
      box-shadow: var(--shadow-card);
    }

    .ky-cta-box::before {
      content: "";
      position: absolute;
      right: -10%;
      top: 20%;
      width: 360px;
      height: 360px;
      background: radial-gradient(circle, rgba(62, 240, 198, 0.18), transparent 65%);
      pointer-events: none;
    }

    .ky-cta-content {
      position: relative;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
    }

    .ky-cta-copy {
      max-width: 680px;
    }

    .ky-cta-copy .ky-overline {
      margin-bottom: 12px;
    }

    .ky-cta-copy h2 {
      font-size: clamp(28px, 4.6vw, 44px);
      color: #fff;
      font-weight: 800;
      line-height: 1.25;
    }

    .ky-cta-copy p {
      color: var(--muted);
      font-size: 16px;
      margin-top: 16px;
      line-height: 1.85;
    }

    .ky-cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .ky-footer {
      background: #070A0E;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding: 64px 0 30px;
    }

    .ky-footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
      gap: 44px;
    }

    .ky-footer-brand .ky-logo {
      font-size: 18px;
    }

    .ky-footer-brand p {
      margin-top: 14px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.85;
      max-width: 320px;
    }

    .ky-footer-col-title {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .ky-footer ul {
      display: grid;
      gap: 8px;
      margin: 0;
      padding: 0;
    }

    .ky-footer a {
      color: var(--muted);
      font-size: 14px;
    }

    .ky-footer a:hover {
      color: var(--primary);
    }

    .ky-footer-col-about {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.8;
    }

    .ky-footer-hr {
      height: 1px;
      background: var(--line);
      margin: 38px 0 24px;
    }

    .ky-footer-note {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.9;
      max-width: 1100px;
    }

    .ky-copyright {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: space-between;
      align-items: center;
      color: var(--muted);
      font-size: 13px;
      margin-top: 18px;
    }

    .ky-copyright a {
      color: var(--muted);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .ky-copyright a:hover {
      color: var(--primary);
    }

    @media (max-width: 1100px) {
      .ky-navlist a {
        padding: 0 9px;
        font-size: 14px;
      }

      .ky-route-row {
        column-gap: 40px;
      }
    }

    @media (max-width: 980px) {
      .ky-nav {
        gap: 12px;
      }

      .ky-burger {
        display: inline-flex;
        margin-left: auto;
      }

      .ky-nav-cta {
        display: none;
      }

      .ky-navlist {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        max-height: calc(100vh - var(--header-h));
        overflow-y: auto;
        padding: 18px 24px 28px;
        background: rgba(7, 10, 14, 0.97);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 28px 60px rgba(0, 0, 0, 0.4);
        transform: translateY(-14px);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s ease;
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
      }

      .ky-header.menu-open .ky-navlist {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
      }

      .ky-navlist a {
        line-height: 52px;
        padding: 0 12px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        font-size: 16px;
      }

      .ky-navlist a.active {
        color: var(--primary);
        background: rgba(62, 240, 198, 0.05);
      }

      .ky-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }

      .ky-faq-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .ky-faq-side {
        position: static;
      }
    }

    @media (max-width: 780px) {
      .ky-container,
      .ky-nav {
        padding-left: 20px;
        padding-right: 20px;
      }

      .ky-page-hero {
        padding: 92px 0 64px;
      }

      .ky-page-hero-media {
        margin-top: 44px;
      }

      .ky-hero-title {
        font-size: clamp(32px, 8.6vw, 48px);
      }

      .ky-situation-grid {
        grid-template-columns: 1fr;
      }

      .ky-route::before {
        left: 36px;
      }

      .ky-route-row {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 36px 0 48px;
      }

      .ky-route-body,
      .ky-route-row:nth-child(even) .ky-route-body,
      .ky-route-media,
      .ky-route-row:nth-child(even) .ky-route-media {
        justify-self: stretch;
      }

      .ky-route-row:nth-child(even) .ky-route-body {
        order: 2;
      }

      .ky-route-row:nth-child(even) .ky-route-media {
        order: 1;
      }

      .ky-route-index {
        left: 36px;
        top: 18px;
        transform: translate(-50%, -12px);
        width: 56px;
        height: 56px;
      }

      .ky-route-media .ky-media-card {
        margin-left: 58px;
      }

      .ky-route-body {
        margin-left: 58px;
      }

      .ky-section,
      .ky-step-yield,
      .ky-info-section,
      .ky-faq-section {
        padding: 64px 0;
      }

      .ky-cta-panel {
        padding: 64px 0 70px;
      }
    }

    @media (max-width: 560px) {
      .ky-logo {
        font-size: 16px;
        gap: 7px;
      }

      .ky-logo-mark {
        width: 26px;
        height: 26px;
        border-radius: 8px;
      }

      .ky-logo-mark::before {
        left: 7px;
        top: 10px;
        width: 12px;
        height: 8px;
      }

      .ky-nav {
        gap: 8px;
      }

      .ky-hero-actions {
        align-items: stretch;
        flex-direction: column;
      }

      .ky-hero-actions .ky-btn {
        width: 100%;
      }

      .ky-hero-frame img {
        min-height: 240px;
      }

      .ky-float-chip-a {
        left: 0;
        top: -10px;
      }

      .ky-float-chip-b {
        right: 0;
        bottom: 44px;
      }

      .ky-footer-grid {
        grid-template-columns: 1fr;
      }

      .ky-safety-note-card {
        padding: 24px;
      }

      .ky-cta-box {
        padding: 28px 22px;
        border-radius: 18px;
      }

      .ky-cta-actions .ky-btn {
        width: 100%;
      }

      .ky-copyright {
        flex-direction: column;
        align-items: flex-start;
      }
    }

/* roulang page: category3 */
:root {
            --bg: #0B0F14;
            --bg2: #121820;
            --surface: #18212C;
            --surface2: #1B2532;
            --primary: #3EF0C6;
            --primary-ink: #05241D;
            --accent: #FF5D7C;
            --warn: #FFBE6B;
            --text: #EAF0F6;
            --muted: #9AA7B5;
            --border: rgba(255, 255, 255, 0.08);
            --radius-xl: 18px;
            --radius-md: 12px;
            --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
            --container: 1240px;
            --header-h: 72px;
            --section: 96px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.9;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            font-weight: 700;
            margin: 0 0 0.5em;
            letter-spacing: 0.01em;
        }
        p {
            margin: 0 0 1em;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        button {
            font-family: inherit;
            border: 0;
            cursor: pointer;
        }
        .ky-container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .ky-section {
            padding: var(--section) 0;
        }

        /* header */
        .ky-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            height: var(--header-h);
            background: rgba(9, 12, 17, 0.86);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(62, 240, 198, 0.22);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.02);
        }
        .ky-nav {
            max-width: var(--container);
            margin: 0 auto;
            height: 100%;
            padding: 0 24px;
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .ky-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 21px;
            font-weight: 800;
            color: #fff;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .ky-logo-mark {
            position: relative;
            flex: 0 0 auto;
            width: 28px;
            height: 28px;
            border: 2px solid var(--primary);
            border-radius: 9px;
            background: rgba(62, 240, 198, 0.05);
            box-shadow: 0 0 18px rgba(62, 240, 198, 0.18);
        }
        .ky-logo-mark::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 5px;
            width: 16px;
            height: 12px;
            border: 2px solid var(--primary);
            border-radius: 3px;
        }
        .ky-logo-mark::after {
            content: "";
            position: absolute;
            left: 10px;
            top: 13px;
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 8px var(--primary);
        }
        .ky-navlist {
            display: flex;
            align-items: stretch;
            height: 100%;
            margin: 0 0 0 12px;
            gap: 2px;
            flex: 1;
        }
        .ky-navlist li {
            display: flex;
            align-items: stretch;
        }
        .ky-navlist a {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 14px;
            font-size: 15px;
            color: #C6D0DB;
            position: relative;
            transition: color 0.25s ease;
            white-space: nowrap;
        }
        .ky-navlist a::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -1px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.28s ease;
            box-shadow: 0 0 14px rgba(62, 240, 198, 0.75);
        }
        .ky-navlist a:hover,
        .ky-navlist a.active {
            color: var(--primary);
        }
        .ky-navlist a:hover::after,
        .ky-navlist a.active::after {
            transform: scaleX(1);
        }
        .ky-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 46px;
            padding: 0 22px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 15px;
            transition: all 0.25s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .ky-btn-primary {
            background: var(--primary);
            color: var(--primary-ink);
            border-color: var(--primary);
        }
        .ky-btn-primary:hover {
            background: #7EF6D8;
            border-color: #7EF6D8;
            box-shadow: 0 0 26px rgba(62, 240, 198, 0.32);
            transform: translateY(-2px);
        }
        .ky-btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--text);
        }
        .ky-btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 18px rgba(62, 240, 198, 0.12);
        }
        .ky-btn-sm {
            min-height: 44px;
            padding: 0 18px;
            font-size: 14px;
        }
        .ky-btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .ky-nav-cta {
            flex: 0 0 auto;
        }
        .ky-burger {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }

        /* footer */
        .ky-footer {
            background: #070A0E;
            border-top: 1px solid rgba(62, 240, 198, 0.12);
            padding: 72px 0 0;
            margin-top: 24px;
        }
        .ky-footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 44px;
            padding-bottom: 44px;
        }
        .ky-footer .ky-logo {
            font-size: 20px;
            margin-bottom: 10px;
        }
        .ky-footer-brand p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.9;
            max-width: 34em;
        }
        .ky-footer-col-title {
            font-size: 15px;
            color: #fff;
            margin: 6px 0 18px;
            letter-spacing: 0.02em;
        }
        .ky-footer ul li {
            margin-bottom: 10px;
        }
        .ky-footer ul a {
            color: var(--muted);
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .ky-footer ul a:hover {
            color: var(--primary);
        }
        .ky-footer-hr {
            height: 1px;
            background: var(--border);
        }
        .ky-footer-note {
            padding: 26px 0 8px;
            color: #5E6A78;
            font-size: 13px;
            line-height: 1.9;
            max-width: 900px;
        }
        .ky-copyright {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 20px 0 26px;
            color: #6A7481;
            font-size: 13px;
        }
        .ky-copyright a {
            color: #8c98a6;
        }
        .ky-copyright a:hover {
            color: var(--primary);
        }

        /* internal hero */
        .ky-subhero {
            position: relative;
            padding: calc(var(--header-h) + 80px) 0 72px;
            overflow: hidden;
        }
        .ky-subhero::before {
            content: "";
            position: absolute;
            inset: 0;
            background:
                linear-gradient(90deg, rgba(11, 15, 20, 0.96) 0%, rgba(11, 15, 20, 0.72) 50%, rgba(11, 15, 20, 0.45) 100%),
                url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
        }
        .ky-subhero::after {
            content: "";
            position: absolute;
            width: 360px;
            height: 360px;
            left: 58%;
            top: 18%;
            background: radial-gradient(circle, rgba(62, 240, 198, 0.13) 0%, transparent 68%);
            filter: blur(10px);
            pointer-events: none;
        }
        .ky-subhero .ky-container {
            position: relative;
            z-index: 2;
        }
        .ky-crumbs {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 22px;
            font-size: 13px;
            color: var(--muted);
        }
        .ky-crumbs a {
            color: var(--muted);
        }
        .ky-crumbs a:hover {
            color: var(--primary);
        }
        .ky-crumbs i {
            font-size: 10px;
            opacity: 0.7;
        }
        .ky-subhero-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.8fr);
            gap: 56px;
            align-items: center;
        }
        .ky-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 5px 12px;
            border: 1px solid rgba(62, 240, 198, 0.28);
            border-radius: 999px;
            color: var(--primary);
            background: rgba(62, 240, 198, 0.05);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 22px;
        }
        .ky-subhero h1 {
            font-size: clamp(32px, 4.6vw, 54px);
            line-height: 1.18;
            font-weight: 800;
            margin-bottom: 20px;
        }
        .ky-subhero h1 .accent {
            color: var(--primary);
        }
        .ky-subhero-lead {
            font-size: 16px;
            max-width: 42em;
            color: #B9C4D0;
            line-height: 2;
        }
        .ky-subhero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin: 32px 0 26px;
        }
        .ky-mini-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }
        .ky-mini-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: #85919F;
        }
        .ky-mini-trust i {
            color: var(--primary);
            font-size: 13px;
        }
        .ky-hero-card {
            border: 1px solid rgba(62, 240, 198, 0.22);
            border-radius: 20px;
            background: linear-gradient(145deg, rgba(30, 39, 51, 0.9), rgba(15, 20, 27, 0.86));
            padding: 28px;
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow);
        }
        .ky-hero-card-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .ky-hero-card-title i {
            color: var(--primary);
        }
        .ky-hero-card ul li {
            display: flex;
            gap: 10px;
            font-size: 14px;
            color: #AEB9C5;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .ky-hero-card ul li:last-child {
            border-bottom: 0;
            padding-bottom: 0;
        }
        .ky-hero-card ul i {
            color: var(--primary);
            padding-top: 5px;
        }

        /* tip row */
        .ky-tipbar {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.02);
        }
        .ky-tipbar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
        }
        .ky-tip-item {
            padding: 34px 28px;
            border-right: 1px solid var(--border);
        }
        .ky-tip-item:last-child {
            border-right: 0;
        }
        .ky-tip-num {
            font-size: 13px;
            color: var(--primary);
            font-weight: 700;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }
        .ky-tip-item h3 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 8px;
        }
        .ky-tip-item p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.75;
            margin: 0;
        }

        /* faq layout */
        .ky-faq-layout {
            display: grid;
            grid-template-columns: 380px minmax(0, 1fr);
            gap: 64px;
            align-items: start;
        }
        .section-kicker {
            display: inline-block;
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.08em;
            padding-bottom: 8px;
            margin-bottom: 14px;
            border-bottom: 2px solid rgba(62, 240, 198, 0.4);
        }
        .ky-faq-side h2,
        .ky-detail-head h2 {
            font-size: clamp(28px, 3.2vw, 40px);
            margin-bottom: 16px;
            color: #fff;
        }
        .ky-faq-side p {
            color: var(--muted);
            font-size: 15px;
            max-width: 33em;
            line-height: 2;
            margin-bottom: 28px;
        }
        .ky-faq-guide-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            transition: gap 0.2s ease;
        }
        .ky-faq-guide-link:hover {
            gap: 12px;
        }
        .ky-faq-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .ky-faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            transition: border-color 0.3s ease, background 0.3s ease;
        }
        .ky-faq-item.open {
            border-color: rgba(62, 240, 198, 0.38);
            background: var(--surface2);
        }
        .ky-faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 18px;
            width: 100%;
            min-height: 68px;
            padding: 20px 24px;
            background: transparent;
            color: #E5ECF3;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.6;
            text-align: left;
        }
        .ky-faq-icon {
            flex: 0 0 auto;
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--primary);
            transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
            font-size: 14px;
        }
        .ky-faq-item.open .ky-faq-icon {
            transform: rotate(135deg);
            border-color: var(--accent);
            color: var(--accent);
        }
        .ky-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 2;
        }
        .ky-faq-answer-inner {
            padding-bottom: 22px;
        }
        .ky-faq-item.open .ky-faq-answer {
            max-height: 600px;
        }

        /* long intro with image */
        .ky-visual-wrap {
            display: grid;
            grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
            gap: 56px;
            align-items: center;
        }
        .ky-visual-img {
            border-radius: 22px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.12);
            position: relative;
            box-shadow: var(--shadow);
        }
        .ky-visual-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
            transition: transform 0.5s ease;
        }
        .ky-visual-img:hover img {
            transform: scale(1.02);
        }
        .ky-visual-copy h2 {
            font-size: clamp(27px, 3vw, 36px);
            color: #fff;
            margin-bottom: 18px;
        }
        .ky-visual-copy p {
            color: #9AA7B5;
            margin-bottom: 20px;
        }
        .ky-checklist {
            margin: 10px 0 0;
        }
        .ky-checklist li {
            position: relative;
            padding: 12px 0 12px 30px;
            color: #C2CCD6;
            font-size: 15px;
            border-bottom: 1px solid var(--border);
        }
        .ky-checklist li:last-child {
            border-bottom: 0;
        }
        .ky-checklist li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 20px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(62, 240, 198, 0.5);
        }
        .ky-detail-head {
            margin-bottom: 48px;
            max-width: 780px;
        }
        .ky-detail-head p {
            color: var(--muted);
            font-size: 15px;
        }

        /* long detail cards */
        .ky-detail-stack {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .ky-detail-card {
            position: relative;
            overflow: hidden;
            padding: 44px 48px;
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            background: linear-gradient(135deg, rgba(27, 37, 50, 0.68), rgba(18, 24, 32, 0.9));
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            display: grid;
            grid-template-columns: 88px minmax(0, 1fr);
            gap: 32px;
        }
        .ky-detail-card:hover {
            transform: translateY(-4px);
            border-color: rgba(62, 240, 198, 0.35);
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
        }
        .ky-detail-card::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 230px;
            height: 230px;
            background: radial-gradient(circle, rgba(62, 240, 198, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .ky-detail-num {
            font-size: clamp(28px, 2.8vw, 38px);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.04em;
            line-height: 1;
            padding-top: 6px;
            position: relative;
        }
        .ky-detail-card h3 {
            font-size: 22px;
            margin-bottom: 14px;
            color: #fff;
            line-height: 1.4;
        }
        .ky-detail-card p {
            color: #B4BECA;
            font-size: 15px;
            line-height: 2;
            margin-bottom: 0;
            max-width: 60em;
        }
        .ky-detail-card p+p {
            margin-top: 14px;
        }
        .ky-detail-card ul {
            margin-top: 16px;
        }
        .ky-detail-card ul li {
            position: relative;
            color: #B4BECA;
            padding: 5px 0 5px 22px;
            font-size: 14px;
        }
        .ky-detail-card ul li::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }

        /* warning block */
        .ky-safe-note {
            background: linear-gradient(90deg, rgba(255, 93, 124, 0.07), rgba(255, 93, 124, 0.02));
            border: 1px solid rgba(255, 93, 124, 0.18);
            border-left: 4px solid rgba(255, 93, 124, 0.8);
            border-radius: 16px;
            padding: 26px 30px;
            margin: 36px 0 0;
        }
        .ky-safe-note h3 {
            color: #fff;
            font-size: 17px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ky-safe-note h3 i {
            color: var(--accent);
        }
        .ky-safe-note p {
            font-size: 14px;
            line-height: 1.9;
            color: #BBC4CE;
            margin: 0;
        }

        /* bottom cta */
        .ky-cta-block {
            background: #070A0E;
            border-top: 1px solid var(--border);
            padding: 90px 0;
        }
        .ky-cta-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            flex-wrap: wrap;
        }
        .ky-cta-copy {
            max-width: 680px;
        }
        .ky-cta-copy h2 {
            color: #fff;
            font-size: clamp(27px, 3.2vw, 40px);
            margin-bottom: 14px;
        }
        .ky-cta-copy p {
            color: var(--muted);
            font-size: 15px;
            margin-bottom: 0;
        }
        .ky-cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* responsive */
        @media (max-width: 1080px) {
            .ky-navlist a {
                padding: 0 10px;
                font-size: 14px;
            }
            .ky-subhero-grid {
                grid-template-columns: 1fr;
            }
            .ky-hero-card {
                max-width: 640px;
            }
            .ky-tipbar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ky-tip-item:nth-child(2) {
                border-right: 0;
            }
            .ky-tip-item:nth-child(1),
            .ky-tip-item:nth-child(2),
            .ky-tip-item:nth-child(3) {
                border-bottom: 1px solid var(--border);
            }
            .ky-faq-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .ky-visual-wrap {
                grid-template-columns: 1fr;
                gap: 34px;
            }
            .ky-footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 860px) {
            .ky-burger {
                display: inline-flex;
                margin-left: auto;
            }
            .ky-navlist {
                position: fixed;
                inset: 0;
                z-index: -1;
                height: 100vh;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 10px;
                background: rgba(7, 10, 14, 0.97);
                backdrop-filter: blur(18px);
                transform: translateY(-100%);
                transition: transform 0.4s ease;
                margin: 0;
            }
            .ky-nav-open .ky-navlist {
                transform: translateY(0);
            }
            .ky-navlist a {
                font-size: 20px;
                padding: 16px 24px;
                height: auto;
            }
            .ky-navlist a::after {
                left: 18px;
                right: 18px;
                bottom: 6px;
            }
            .ky-nav-cta {
                display: none;
            }
        }
        @media (max-width: 720px) {
            :root {
                --section: 64px;
            }
            .ky-container {
                padding: 0 18px;
            }
            .ky-subhero {
                padding: calc(var(--header-h) + 52px) 0 48px;
            }
            .ky-subhero h1 {
                font-size: 34px;
            }
            .ky-subhero-actions .ky-btn {
                width: 100%;
            }
            .ky-tipbar-grid {
                grid-template-columns: 1fr 1fr;
            }
            .ky-tip-item {
                padding: 22px 16px;
            }
            .ky-visual-img img {
                aspect-ratio: 4 / 3;
            }
            .ky-detail-card {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 30px 24px;
            }
            .ky-detail-card h3 {
                font-size: 19px;
            }
            .ky-detail-card p,
            .ky-detail-card ul li {
                font-size: 14px;
            }
            .ky-cta-grid {
                flex-direction: column;
                align-items: flex-start;
            }
            .ky-cta-actions .ky-btn {
                width: 100%;
            }
            .ky-hero-card {
                padding: 20px;
            }
            .ky-safe-note {
                padding: 22px;
            }
        }
        @media (max-width: 520px) {
            .ky-logo {
                font-size: 17px;
                gap: 8px;
            }
            .ky-logo-mark {
                width: 24px;
                height: 24px;
                border-radius: 8px;
            }
            .ky-logo-mark::before {
                left: 3px;
                top: 4px;
                width: 14px;
                height: 10px;
            }
            .ky-subhero-actions .ky-btn {
                min-width: 0;
            }
            .ky-tipbar-grid {
                grid-template-columns: 1fr;
            }
            .ky-tip-item {
                border-right: 0;
                border-bottom: 1px solid var(--border);
            }
            .ky-tip-item:last-child {
                border-bottom: 0;
            }
            .ky-visual-copy h2,
            .ky-faq-side h2,
            .ky-detail-head h2,
            .ky-cta-copy h2 {
                font-size: 26px;
            }
            .ky-faq-q {
                padding: 16px 16px;
                font-size: 15px;
            }
            .ky-faq-answer {
                padding: 0 16px;
            }
            .ky-faq-item.open .ky-faq-answer {
                padding: 0 16px;
            }
            .ky-detail-card h3 {
                font-size: 18px;
            }
            .ky-footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .ky-footer-note,
            .ky-copyright {
                font-size: 12px;
            }
            .ky-copyright {
                flex-direction: column;
                align-items: flex-start;
            }
        }