/* roulang page: index */
:root{
  --bg-0:#060913;
  --bg-1:#0B1120;
  --bg-2:#121A2E;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.085);
  --line:rgba(255,255,255,.10);
  --line-hi:rgba(255,255,255,.16);
  --accent:#16E0C0;
  --accent-2:#6E5BFF;
  --amber:#FFB65C;
  --t1:#F2F5FF;
  --t2:#A9B4CC;
  --t3:#6F7C99;
  --ink:#04140F;
  --r-xs:10px;
  --r-md:16px;
  --r-lg:22px;
  --pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 8px 30px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-title{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:.01em}
.sec-sub{margin-top:10px;font-size:15px;color:var(--t2)}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--t2);white-space:nowrap}
.sec-link:hover{color:var(--accent)}
.sec-link:hover .arw{transform:translateX(4px)}
.arw{display:inline-block;transition:transform .2s var(--ease)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  background:rgba(6,9,19,.62);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(255,255,255,.05) inset;
  transition:background .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,9,19,.88)}
.head-inner{display:flex;align-items:center;gap:20px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(22,224,192,.28),rgba(110,91,255,.32));
  border:1px solid rgba(22,224,192,.45);
  box-shadow:0 0 16px rgba(22,224,192,.35),0 0 0 1px rgba(255,255,255,.06) inset;
}
.logo-mark svg{width:18px;height:18px}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--t1);line-height:1.15}
.logo-text small{display:block;font-size:11px;font-weight:400;color:var(--t3);letter-spacing:.08em;margin-top:1px}
.seg{
  margin-left:auto;margin-right:auto;
  display:flex;gap:4px;padding:4px;
  background:rgba(0,0,0,.42);
  border:1px solid var(--line);
  border-radius:var(--pill);
  box-shadow:inset 0 2px 12px rgba(0,0,0,.65);
  max-width:100%;
}
.seg a{
  padding:8px 16px;border-radius:var(--pill);
  font-size:14px;color:var(--t2);white-space:nowrap;
  transition:all .18s var(--ease);
}
.seg a:hover{background:rgba(255,255,255,.08);color:var(--t1)}
.seg a.active{
  background:linear-gradient(180deg,#1BF1CE,#12C7AB);
  color:var(--ink);font-weight:700;
  box-shadow:0 0 12px rgba(22,224,192,.5);
}
.btn-cta{
  flex-shrink:0;
  padding:9px 18px;border-radius:var(--pill);
  font-size:14px;font-weight:600;color:var(--accent);
  background:rgba(22,224,192,.08);
  border:1px solid rgba(22,224,192,.55);
  box-shadow:0 0 14px rgba(22,224,192,.22);
  transition:all .2s var(--ease);
}
.btn-cta:hover{background:rgba(22,224,192,.18);box-shadow:0 0 26px rgba(22,224,192,.45);transform:translateY(-1px)}
.mobile-seg{display:none}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(6,9,19,.94) 0%,rgba(6,9,19,.78) 42%,rgba(6,9,19,.35) 100%),
    linear-gradient(180deg,rgba(6,9,19,.25) 0%,rgba(6,9,19,.55) 66%,rgba(6,9,19,.97) 100%);
}
.hero-grid{
  position:absolute;inset:0;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-inner{position:relative;padding:96px 0 104px;display:flex;flex-wrap:wrap;gap:48px;align-items:flex-end}
.hero-card{
  width:100%;max-width:620px;
  padding:34px;
  border-radius:var(--r-lg);
  background:linear-gradient(155deg,rgba(255,255,255,.085),rgba(255,255,255,.035));
  border:1px solid var(--line);
  box-shadow:var(--sh-2),0 1px 0 rgba(255,255,255,.14) inset;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--accent);
  padding:6px 12px;border-radius:var(--pill);
  background:rgba(22,224,192,.10);
  border:1px solid rgba(22,224,192,.3);
}
.hero h1{
  margin:20px 0 14px;
  font-size:46px;line-height:1.18;font-weight:700;letter-spacing:-.01em;
}
.hero h1 em{font-style:normal;color:var(--accent);text-shadow:0 0 22px rgba(22,224,192,.45)}
.hero-sub{font-size:17px;color:var(--t2);max-width:32em}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--pill);
  font-size:15px;font-weight:700;color:var(--ink);
  background:linear-gradient(180deg,#22F2D2,#12C7AB);
  box-shadow:0 0 12px rgba(22,224,192,.45),0 0 28px rgba(22,224,192,.28);
  transition:all .2s var(--ease);
}
.btn-main:hover{box-shadow:0 0 18px rgba(22,224,192,.6),0 0 46px rgba(22,224,192,.42);transform:translateY(-2px);filter:brightness(1.08)}
.btn-main:active{transform:translateY(-1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--pill);
  font-size:15px;font-weight:600;color:var(--t1);
  background:var(--glass);
  border:1px solid var(--line-hi);
  backdrop-filter:blur(12px);
  transition:all .2s var(--ease);
}
.btn-ghost:hover{background:var(--glass-2);border-color:rgba(22,224,192,.45);color:var(--accent);transform:translateY(-2px)}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  font-size:12px;letter-spacing:.02em;color:var(--t2);
  padding:6px 13px;border-radius:var(--pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.hero-thumbs{display:flex;gap:14px;margin-left:auto;align-self:flex-end}
.hero-thumbs figure{
  width:132px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  background:var(--bg-2);
}
.hero-thumbs img{width:100%;aspect-ratio:16/9;object-fit:cover;background:linear-gradient(140deg,#0d1424,#1a2440)}
.hero-thumbs figcaption{padding:8px 10px;font-size:12px;color:var(--t3);letter-spacing:.02em}

/* ---------- rail ---------- */
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 20px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 auto;width:276px;scroll-snap-align:start;
  border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.rail-card:hover{transform:translateY(-6px);border-color:rgba(22,224,192,.55);box-shadow:0 14px 38px rgba(0,0,0,.55)}
.rail-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#0d1424,#1a2440)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease),filter .35s var(--ease)}
.rail-card:hover .rail-thumb img{transform:scale(1.06);filter:brightness(1.08)}
.rail-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 42%,rgba(6,9,19,.88) 100%)}
.rail-cap{position:absolute;left:14px;right:14px;bottom:12px;z-index:2;font-size:15px;font-weight:600;line-height:1.4}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.02em;
  padding:4px 11px;border-radius:var(--pill);
  border:1px solid var(--line-hi);
  background:rgba(255,255,255,.07);
  color:var(--t2);
}
.badge-mint{color:#8FF6E4;border-color:rgba(22,224,192,.42);background:rgba(22,224,192,.12)}
.badge-violet{color:#C6BEFF;border-color:rgba(110,91,255,.42);background:rgba(110,91,255,.14)}
.badge-amber{color:#FFD9A6;border-color:rgba(255,182,92,.42);background:rgba(255,182,92,.13)}
.rail-thumb .badge{position:absolute;top:12px;left:12px;z-index:3}

/* ---------- hot grid ---------- */
.hot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.hot-main{
  grid-column:span 2;grid-row:span 2;
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  border:1px solid rgba(22,224,192,.5);
  box-shadow:0 0 0 1px rgba(22,224,192,.12),0 0 28px rgba(22,224,192,.2),var(--sh-2);
  background:var(--bg-2);
  min-height:340px;
  display:flex;flex-direction:column;justify-content:flex-end;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.hot-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.72)}
.hot-main .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,9,19,.1),rgba(6,9,19,.92))}
.hot-main .hot-body{position:relative;padding:28px}
.hot-main h3{font-size:24px;line-height:1.32;font-weight:700;margin:14px 0 10px}
.hot-main p{font-size:15px;color:var(--t2);max-width:34em}
.hot-main:hover{transform:translateY(-6px);box-shadow:0 0 0 1px rgba(22,224,192,.3),0 0 44px rgba(22,224,192,.3),var(--sh-2)}
.hot-small{
  grid-column:span 2;
  display:flex;gap:16px;align-items:center;
  padding:16px;border-radius:var(--r-md);
  background:var(--bg-2);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.hot-small:hover{transform:translateY(-4px);border-color:rgba(110,91,255,.5)}
.hot-small img{width:104px;height:72px;border-radius:12px;object-fit:cover;flex-shrink:0;background:linear-gradient(140deg,#0d1424,#1a2440)}
.hot-small h3{font-size:16px;font-weight:600;margin:8px 0 4px;line-height:1.45}
.hot-small p{font-size:13px;color:var(--t3)}

/* ---------- filter chips + grid ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  font-size:13px;padding:7px 15px;border-radius:var(--pill);
  color:var(--t2);background:rgba(255,255,255,.045);
  border:1px solid var(--line);
}
.chip:hover{color:var(--t1);background:rgba(255,255,255,.09);border-color:var(--line-hi)}
.chip.on{color:var(--ink);font-weight:700;background:linear-gradient(180deg,#1BF1CE,#12C7AB);border-color:transparent;box-shadow:0 0 14px rgba(22,224,192,.4)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:32px}
.tile{
  border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.tile:hover{transform:translateY(-6px);border-color:rgba(22,224,192,.45);box-shadow:0 16px 40px rgba(0,0,0,.5)}
.tile-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#0d1424,#1a2440)}
.tile-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.tile:hover .tile-thumb img{transform:scale(1.05)}
.tile-body{padding:18px 20px 22px}
.tile-body h3{font-size:17px;font-weight:600;line-height:1.45;margin:10px 0 8px}
.tile-body p{font-size:14px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- rank list ---------- */
.rank-panel{
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(110,91,255,.10),rgba(255,255,255,.03));
  border:1px solid var(--line);
  padding:12px;
  box-shadow:var(--sh-2);
}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:14px 14px;border-radius:14px;
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:var(--glass-2);transform:translateX(4px)}
.rank-no{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;color:var(--accent-2);width:28px;flex-shrink:0;letter-spacing:.04em}
.rank-thumb{width:56px;height:56px;border-radius:12px;object-fit:cover;flex-shrink:0;background:linear-gradient(140deg,#0d1424,#1a2440)}
.rank-txt{flex:1;min-width:0}
.rank-txt h3{font-size:16px;font-weight:600;line-height:1.45;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-txt p{font-size:13px;color:var(--t3);margin-top:2px}
.rank-go{color:var(--t3);font-size:18px;flex-shrink:0}
.rank-item:hover .rank-go{color:var(--accent)}

/* ---------- cms news ---------- */
.grid-cms{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.news-card:hover{transform:translateY(-6px);border-color:rgba(22,224,192,.45);box-shadow:0 16px 40px rgba(0,0,0,.5)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#0d1424,#1a2440)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.05);filter:brightness(1.06)}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-time{font-size:12px;color:var(--t3);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.02em;margin-top:auto}
.empty{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  border-radius:var(--r-lg);border:1px dashed var(--line-hi);
  background:rgba(255,255,255,.025);
}
.empty .ico{font-size:26px;color:var(--accent);margin-bottom:12px}
.empty p{font-size:14px;color:var(--t2);margin-bottom:18px}

/* ---------- login card ---------- */
.login-card{
  display:grid;grid-template-columns:1.05fr .95fr;
  border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(150deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
  border:1px solid var(--line);
  box-shadow:var(--sh-2),0 1px 0 rgba(255,255,255,.13) inset;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.login-info{padding:40px 38px}
.login-info h2{font-size:26px;font-weight:700;line-height:1.35;margin-bottom:14px}
.login-info p{font-size:15px;color:var(--t2)}
.point-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.point-list li{display:flex;gap:12px;font-size:15px;color:var(--t2);line-height:1.7}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(22,224,192,.85);flex-shrink:0;margin-top:11px}
.login-form{
  padding:40px 38px;
  background:rgba(6,9,19,.5);
  border-left:1px solid var(--line);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--t2);margin-bottom:8px;letter-spacing:.02em}
.field input{
  width:100%;height:48px;padding:0 16px;
  border-radius:var(--r-xs);
  background:#0A1020;
  border:1px solid var(--line);
  box-shadow:inset 0 2px 8px rgba(0,0,0,.6);
  color:var(--t1);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--t3)}
.field input:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(22,224,192,.16),0 0 14px rgba(22,224,192,.4);
}
.check{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t2);margin:4px 0 22px}
.check input{width:16px;height:16px;accent-color:#16E0C0}
.btn-block{width:100%;padding:14px 20px}
.helper{margin-top:18px;display:flex;flex-wrap:wrap;gap:18px;font-size:13px}
.helper a{color:var(--t2);border-bottom:1px solid transparent}
.helper a:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
details.faq{
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
details.faq:hover{border-color:rgba(22,224,192,.4);background:var(--glass-2)}
details.faq summary{
  list-style:none;cursor:pointer;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 22px;font-size:16px;font-weight:600;color:var(--t1);
}
details.faq summary::-webkit-details-marker{display:none}
.faq-ico{
  width:24px;height:24px;flex-shrink:0;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:16px;line-height:1;
  border:1px solid rgba(22,224,192,.45);
  transition:transform .25s var(--ease);
}
details.faq[open] .faq-ico{transform:rotate(90deg)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--t2);line-height:1.8}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:56px 24px;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.055) 0 1px,transparent 1px 14px);
  opacity:.5;
}
.cta-band::after{
  content:"";position:absolute;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,192,.20),transparent 68%);
  top:-260px;left:50%;transform:translateX(-50%);
}
.cta-band h2{position:relative;font-size:30px;font-weight:700;line-height:1.35}
.cta-band p{position:relative;font-size:15px;color:var(--t2);margin:14px 0 26px;max-width:44em}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.028),transparent 60%);
  padding:64px 0 28px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.foot-brand p{font-size:14px;color:var(--t2);margin-top:16px;max-width:30em}
.foot-brand .kw{margin-top:16px;font-size:12px;color:var(--t3);letter-spacing:.06em}
.foot-col h4{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:16px;letter-spacing:.02em}
.foot-col li{margin-bottom:11px}
.foot-col a{font-size:14px;color:var(--t2);display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-col a:hover{color:var(--accent);transform:translateX(3px)}
.foot-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--t3);
}
.foot-bottom span{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.02em}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .grid-4{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1024px){
  .wrap{padding:0 24px}
  .hero-inner{padding:72px 0 80px}
  .hero h1{font-size:38px}
  .hero-thumbs{display:none}
  .hot-grid{grid-template-columns:repeat(2,1fr)}
  .hot-main{grid-column:span 2;grid-row:auto;min-height:300px}
  .hot-small{grid-column:span 1}
  .grid-cms{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .login-card{grid-template-columns:1fr}
  .login-form{border-left:0;border-top:1px solid var(--line);order:-1}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
  .head-inner{flex-wrap:wrap;padding:10px 0;gap:12px}
  .seg{order:3;width:100%;margin:0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .seg::-webkit-scrollbar{display:none}
  .btn-cta{margin-left:auto}
}
@media (max-width:768px){
  body{font-size:16px}
  .hero h1{font-size:31px}
  .hero-card{padding:24px}
  .sec-title{font-size:24px}
  .hot-grid{grid-template-columns:1fr}
  .hot-main{grid-column:span 1}
  .hot-small{grid-column:span 1}
  .grid-4{grid-template-columns:1fr}
  .grid-cms{grid-template-columns:1fr}
  .login-info,.login-form{padding:28px 22px}
  .cta-band h2{font-size:23px}
  .section{padding:56px 0}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .wrap{padding:0 20px}
  .logo-text{font-size:14px}
  .logo-text small{display:none}
  .rail-card{width:238px}
  .hero-btns .btn-main,.hero-btns .btn-ghost{width:100%}
  .hero-thumbs{display:none}
}

/* roulang page: category1 */
:root{
    --bg-0:#060913;
    --bg-1:#0B1120;
    --bg-2:#121A2E;
    --glass:rgba(255,255,255,.06);
    --glass-strong:rgba(255,255,255,.09);
    --line:rgba(255,255,255,.10);
    --line-hi:rgba(255,255,255,.14);
    --acc:#16E0C0;
    --acc-2:#6E5BFF;
    --warn:#FFB65C;
    --tx:#F2F5FF;
    --tx-2:#A9B4CC;
    --tx-3:#6F7C99;
    --inv:#04140F;
    --err:#FF6B6B;
    --r-sm:10px;
    --r-md:16px;
    --r-lg:22px;
    --sh-1:0 2px 10px rgba(0,0,0,.30);
    --sh-2:0 8px 30px rgba(0,0,0,.45);
    --ease:cubic-bezier(.2,.8,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--tx);
    font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    background:
      radial-gradient(900px 520px at 12% -8%,rgba(22,224,192,.10),transparent 62%),
      radial-gradient(760px 460px at 92% 4%,rgba(110,91,255,.12),transparent 60%);
    z-index:0;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  button{cursor:pointer;border:0;background:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:6px;}

  .wrap{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding:0 32px;
    position:relative;
    z-index:1;
  }

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    height:64px;
    display:flex;
    align-items:center;
    background:rgba(6,9,19,.72);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    box-shadow:inset 0 1px 0 var(--line-hi);
    transition:background .3s var(--ease);
  }
  .site-header.is-scrolled{background:rgba(6,9,19,.92);}
  .head-inner{
    display:flex;
    align-items:center;
    gap:20px;
    width:100%;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:11px;
    background:linear-gradient(145deg,rgba(22,224,192,.20),rgba(110,91,255,.18));
    border:1px solid rgba(22,224,192,.30);
    box-shadow:0 0 16px rgba(22,224,192,.22);
  }
  .logo-mark svg{width:22px;height:22px;}
  .logo-text{
    display:flex;
    flex-direction:column;
    font-size:17px;
    font-weight:700;
    letter-spacing:.01em;
    line-height:1.15;
    white-space:nowrap;
  }
  .logo-text small{
    font-size:11px;
    font-weight:400;
    color:var(--tx-3);
    letter-spacing:.06em;
  }
  .seg{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:auto;
    padding:4px;
    border-radius:999px;
    background:rgba(0,0,0,.32);
    border:1px solid var(--line);
    box-shadow:inset 0 2px 10px rgba(0,0,0,.55);
  }
  .seg a{
    padding:8px 16px;
    border-radius:999px;
    font-size:14px;
    color:var(--tx-2);
    white-space:nowrap;
    transition:background .18s var(--ease),color .18s var(--ease);
  }
  .seg a:hover{background:var(--glass);color:var(--tx);}
  .seg a.active{
    background:var(--acc);
    color:var(--inv);
    font-weight:600;
    box-shadow:inset 0 0 12px rgba(255,255,255,.35),0 0 18px rgba(22,224,192,.35);
  }
  .btn-cta{
    flex-shrink:0;
    padding:10px 22px;
    border-radius:999px;
    font-size:14px;
    font-weight:600;
    color:var(--inv);
    background:linear-gradient(120deg,#16E0C0,#3ef0cd);
    box-shadow:inset 0 0 12px rgba(22,224,192,.45),0 0 24px rgba(22,224,192,.26);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
    white-space:nowrap;
  }
  .btn-cta:hover{
    transform:translateY(-2px);
    filter:brightness(1.08);
    box-shadow:inset 0 0 12px rgba(22,224,192,.55),0 0 40px rgba(22,224,192,.42);
  }
  .btn-cta:active{transform:translateY(-1px);}

  /* ---------- Breadcrumb ---------- */
  .crumb{padding:22px 0 0;}
  .crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);}
  .crumb li{display:inline-flex;align-items:center;gap:8px;}
  .crumb a{color:var(--tx-2);transition:color .18s var(--ease);}
  .crumb a:hover{color:var(--acc);}
  .crumb .sep{color:var(--tx-3);opacity:.6;}
  .crumb .cur{color:var(--tx);}

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;
    margin-top:20px;
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--sh-2);
    min-height:400px;
    display:flex;
    align-items:center;
    isolation:isolate;
  }
  .cat-hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center;
    z-index:-2;
  }
  .cat-hero::after{
    content:"";
    position:absolute;inset:0;
    z-index:-1;
    background:
      linear-gradient(100deg,rgba(6,9,19,.94) 0%,rgba(6,9,19,.78) 46%,rgba(6,9,19,.52) 100%),
      linear-gradient(to top,rgba(6,9,19,.96) 0%,rgba(6,9,19,.10) 46%);
  }
  .cat-hero::before{
    content:"";
    position:absolute;inset:0;
    z-index:-1;
    background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:44px 44px;
    opacity:.5;
    mask-image:linear-gradient(120deg,#000,transparent 72%);
    -webkit-mask-image:linear-gradient(120deg,#000,transparent 72%);
  }
  .hero-card{
    width:min(720px,100%);
    padding:40px;
  }
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 14px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.06em;
    color:var(--acc);
    background:rgba(22,224,192,.10);
    border:1px solid rgba(22,224,192,.30);
    margin-bottom:20px;
  }
  .hero-badge i{
    width:7px;height:7px;border-radius:50%;
    background:var(--acc);
    box-shadow:0 0 10px var(--acc);
    display:block;
  }
  .cat-hero h1{
    font-size:46px;
    line-height:1.18;
    font-weight:700;
    letter-spacing:.01em;
  }
  .cat-hero h1 em{
    font-style:normal;
    color:var(--acc);
    text-shadow:0 0 24px rgba(22,224,192,.35);
  }
  .hero-sub{
    margin-top:16px;
    font-size:17px;
    color:var(--tx-2);
    max-width:600px;
  }
  .hero-overview{
    margin-top:18px;
    font-size:15px;
    line-height:1.95;
    color:var(--tx-2);
    max-width:660px;
  }
  .chip-row{
    display:flex;flex-wrap:wrap;gap:10px;
    margin-top:24px;
  }
  .stat-chip{
    display:inline-flex;align-items:center;gap:8px;
    padding:8px 16px;
    border-radius:999px;
    font-size:13px;
    color:var(--tx-2);
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
  }
  .stat-chip strong{color:var(--tx);font-weight:600;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;}
  .stat-chip.acc{color:var(--acc);border-color:rgba(22,224,192,.28);background:rgba(22,224,192,.08);}
  .stat-chip.warn{color:var(--warn);border-color:rgba(255,182,92,.28);background:rgba(255,182,92,.08);}

  /* ---------- Sections ---------- */
  .section{padding:72px 0 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:28px;
    flex-wrap:wrap;
  }
  .section-head h2{
    font-size:32px;
    line-height:1.25;
    font-weight:700;
    letter-spacing:.01em;
  }
  .section-head h2::before{
    content:"";
    display:inline-block;
    width:4px;height:24px;
    border-radius:3px;
    margin-right:14px;
    vertical-align:-3px;
    background:linear-gradient(180deg,var(--acc),rgba(22,224,192,.15));
    box-shadow:0 0 14px rgba(22,224,192,.55);
  }
  .section-head p{
    margin-top:10px;
    font-size:15px;
    color:var(--tx-2);
  }
  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;color:var(--acc);
    transition:transform .2s var(--ease),color .2s var(--ease);
  }
  .text-link:hover{transform:translateX(4px);}
  .text-link::after{content:"→";}

  /* ---------- Filter chips ---------- */
  .filter-bar{
    display:flex;gap:10px;
    padding:8px;
    border-radius:999px;
    background:rgba(0,0,0,.28);
    border:1px solid var(--line);
    box-shadow:inset 0 2px 10px rgba(0,0,0,.5);
    overflow-x:auto;
    scrollbar-width:none;
    -ms-overflow-style:none;
    margin-bottom:32px;
  }
  .filter-bar::-webkit-scrollbar{display:none;}
  .filter-bar a{
    padding:9px 20px;
    border-radius:999px;
    font-size:14px;
    color:var(--tx-2);
    white-space:nowrap;
    transition:background .18s var(--ease),color .18s var(--ease);
  }
  .filter-bar a:hover{background:var(--glass);color:var(--tx);}
  .filter-bar a.on{
    background:var(--acc);
    color:var(--inv);
    font-weight:600;
    box-shadow:0 0 18px rgba(22,224,192,.32);
  }

  /* ---------- Cards ---------- */
  .glass{
    background:var(--glass);
    border:1px solid var(--line);
    box-shadow:inset 0 1px 0 var(--line-hi),var(--sh-2);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-radius:var(--r-md);
  }
  .lead-card{
    display:grid;
    grid-template-columns:5fr 7fr;
    gap:0;
    overflow:hidden;
    border-radius:var(--r-lg);
    background:var(--glass);
    border:1px solid var(--line);
    box-shadow:inset 0 1px 0 var(--line-hi),var(--sh-2);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  }
  .lead-card:hover{
    transform:translateY(-4px);
    border-color:rgba(22,224,192,.45);
    box-shadow:inset 0 1px 0 var(--line-hi),0 12px 40px rgba(0,0,0,.55),0 0 30px rgba(22,224,192,.16);
  }
  .lead-media{
    position:relative;
    min-height:340px;
    overflow:hidden;
  }
  .lead-media img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .5s var(--ease),filter .5s var(--ease);
  }
  .lead-card:hover .lead-media img{transform:scale(1.05);filter:brightness(1.06);}
  .lead-media::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(115deg,transparent 40%,rgba(6,9,19,.55));
  }
  .lead-body{padding:34px;}
  .tag{
    display:inline-flex;align-items:center;
    padding:4px 12px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.04em;
    background:rgba(110,91,255,.16);
    border:1px solid rgba(110,91,255,.35);
    color:#C3BBFF;
  }
  .tag.acc{background:rgba(22,224,192,.12);border-color:rgba(22,224,192,.32);color:var(--acc);}
  .tag.warn{background:rgba(255,182,92,.12);border-color:rgba(255,182,92,.32);color:var(--warn);}
  .lead-body h3{
    margin-top:16px;
    font-size:26px;
    line-height:1.35;
    font-weight:700;
  }
  .lead-body p{
    margin-top:14px;
    font-size:15.5px;
    color:var(--tx-2);
    line-height:1.9;
  }
  .point-list{margin-top:22px;display:grid;gap:12px;}
  .point-list li{
    display:flex;gap:12px;
    font-size:15px;
    color:var(--tx-2);
    line-height:1.8;
  }
  .point-list li span.dot{
    flex:0 0 auto;
    width:8px;height:8px;
    margin-top:11px;
    border-radius:50%;
    background:var(--acc);
    box-shadow:0 0 10px rgba(22,224,192,.7);
  }
  .point-list li b{color:var(--tx);font-weight:600;}

  .card-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
    margin-top:24px;
  }
  .info-card{
    border-radius:var(--r-md);
    overflow:hidden;
    background:var(--bg-2);
    border:1px solid var(--line);
    box-shadow:var(--sh-1);
    transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
    display:flex;
    flex-direction:column;
  }
  .info-card:hover{
    transform:translateY(-6px);
    border-color:rgba(22,224,192,.42);
    box-shadow:0 14px 40px rgba(0,0,0,.5),0 0 24px rgba(22,224,192,.14);
  }
  .info-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1);}
  .info-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease),filter .5s var(--ease);}
  .info-card:hover .info-media img{transform:scale(1.06);filter:brightness(1.06);}
  .info-media .badge{
    position:absolute;top:12px;right:12px;
    padding:4px 12px;border-radius:999px;
    font-size:12px;
    background:rgba(8,12,24,.72);
    border:1px solid var(--line);
    color:var(--tx-2);
    backdrop-filter:blur(8px);
  }
  .info-media .badge.acc{color:var(--acc);border-color:rgba(22,224,192,.35);}
  .info-media .badge.warn{color:var(--warn);border-color:rgba(255,182,92,.35);}
  .info-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .info-body h3{font-size:20px;font-weight:600;line-height:1.45;}
  .info-body p{font-size:15px;color:var(--tx-2);line-height:1.85;}
  .info-meta{
    margin-top:auto;
    display:flex;align-items:center;justify-content:space-between;
    padding-top:14px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--tx-3);
  }
  .info-meta .go{color:var(--acc);transition:transform .2s var(--ease);}
  .info-card:hover .info-meta .go{transform:translateX(4px);}

  /* ---------- Steps ---------- */
  .step-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:20px;
  }
  .step-card{
    position:relative;
    padding:26px 22px;
    border-radius:var(--r-md);
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    border:1px solid var(--line);
    transition:transform .25s var(--ease),border-color .25s var(--ease);
  }
  .step-card:hover{transform:translateY(-5px);border-color:rgba(110,91,255,.5);}
  .step-num{
    font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
    font-size:13px;
    letter-spacing:.14em;
    color:var(--acc-2);
  }
  .step-card h3{margin-top:12px;font-size:18px;font-weight:600;line-height:1.5;}
  .step-card p{margin-top:10px;font-size:14.5px;color:var(--tx-2);line-height:1.85;}

  /* ---------- Checklist ---------- */
  .checklist-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:20px;
  }
  .check-card{
    padding:24px;
    border-radius:var(--r-md);
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  .check-card h3{
    font-size:17px;font-weight:600;
    display:flex;align-items:center;gap:10px;
  }
  .check-card h3 i{
    width:22px;height:22px;flex:0 0 auto;
    border-radius:7px;
    display:inline-grid;place-items:center;
    font-size:12px;font-style:normal;
    background:rgba(22,224,192,.14);
    border:1px solid rgba(22,224,192,.34);
    color:var(--acc);
  }
  .check-card ul{margin-top:14px;display:grid;gap:10px;}
  .check-card li{
    position:relative;
    padding-left:16px;
    font-size:14.5px;
    color:var(--tx-2);
    line-height:1.8;
  }
  .check-card li::before{
    content:"";
    position:absolute;left:0;top:11px;
    width:6px;height:6px;border-radius:2px;
    background:var(--acc-2);
  }

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:14px;}
  .faq-item{
    border-radius:var(--r-md);
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    overflow:hidden;
    transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
  }
  .faq-item:hover{border-color:rgba(22,224,192,.32);}
  .faq-item[open]{
    border-color:rgba(22,224,192,.42);
    box-shadow:0 0 26px rgba(22,224,192,.12),var(--sh-1);
  }
  .faq-item summary{
    list-style:none;
    min-height:56px;
    display:flex;align-items:center;justify-content:space-between;
    gap:16px;
    padding:16px 22px;
    font-size:17px;
    font-weight:600;
    cursor:pointer;
    transition:color .2s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--acc);}
  .faq-item summary .ic{
    flex:0 0 auto;
    width:26px;height:26px;
    display:grid;place-items:center;
    border-radius:50%;
    font-size:16px;font-weight:400;
    color:var(--acc);
    border:1px solid rgba(22,224,192,.34);
    background:rgba(22,224,192,.08);
    transition:transform .25s var(--ease);
  }
  .faq-item[open] summary .ic{transform:rotate(90deg);}
  .faq-body{
    padding:0 22px 22px;
    font-size:15px;
    color:var(--tx-2);
    line-height:1.9;
    border-top:1px solid var(--line);
    margin-top:0;
    padding-top:16px;
  }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    border-radius:var(--r-lg);
    overflow:hidden;
    min-height:220px;
    display:grid;place-items:center;
    text-align:center;
    padding:44px 28px;
    border:1px solid var(--line);
    background:
      radial-gradient(600px 240px at 50% 120%,rgba(22,224,192,.20),transparent 70%),
      linear-gradient(160deg,rgba(110,91,255,.14),rgba(255,255,255,.02));
    box-shadow:var(--sh-2);
  }
  .cta-band::before{
    content:"";
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:38px 38px;
    opacity:.45;
    mask-image:radial-gradient(circle at 50% 60%,#000,transparent 78%);
    -webkit-mask-image:radial-gradient(circle at 50% 60%,#000,transparent 78%);
  }
  .cta-band > *{position:relative;z-index:1;}
  .cta-band h2{font-size:30px;font-weight:700;line-height:1.3;}
  .cta-band p{margin-top:12px;font-size:15.5px;color:var(--tx-2);max-width:620px;}
  .cta-actions{margin-top:26px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;
    padding:13px 30px;
    border-radius:999px;
    font-size:15px;font-weight:600;
    color:var(--inv);
    background:linear-gradient(120deg,#16E0C0,#40f2d3);
    box-shadow:inset 0 0 12px rgba(22,224,192,.45),0 0 26px rgba(22,224,192,.28);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
  }
  .btn-primary:hover{
    transform:translateY(-2px);
    filter:brightness(1.08);
    box-shadow:inset 0 0 12px rgba(22,224,192,.6),0 0 44px rgba(22,224,192,.42);
  }
  .btn-primary:active{transform:translateY(-1px);}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;
    padding:13px 30px;
    border-radius:999px;
    font-size:15px;font-weight:600;
    color:var(--tx);
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  .btn-ghost:hover{
    transform:translateY(-2px);
    border-color:rgba(22,224,192,.5);
    background:rgba(22,224,192,.08);
  }

  /* ---------- Footer ---------- */
  .site-footer{
    margin-top:96px;
    border-top:1px solid var(--line);
    box-shadow:inset 0 1px 0 var(--line-hi);
    background:rgba(8,12,24,.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    padding:64px 0 0;
    position:relative;
    z-index:1;
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1fr;
    gap:40px;
  }
  .foot-brand .logo{margin-bottom:18px;}
  .foot-brand p{font-size:14.5px;color:var(--tx-2);line-height:1.9;max-width:340px;}
  .foot-brand .kw{
    margin-top:16px;
    display:inline-flex;flex-wrap:wrap;gap:8px;
    font-size:12.5px;
    color:var(--tx-3);
  }
  .foot-brand .kw span{
    padding:5px 12px;
    border-radius:999px;
    background:var(--glass);
    border:1px solid var(--line);
  }
  .foot-col h4{
    font-size:15px;
    font-weight:600;
    margin-bottom:18px;
    color:var(--tx);
  }
  .foot-col ul{display:grid;gap:12px;}
  .foot-col a{
    font-size:14px;
    color:var(--tx-2);
    transition:color .2s var(--ease),transform .2s var(--ease);
    display:inline-block;
  }
  .foot-col a:hover{
    color:var(--acc);
    transform:translateY(-2px);
    text-decoration:underline;
    text-underline-offset:4px;
  }
  .foot-bottom{
    margin-top:48px;
    padding:22px 0 26px;
    border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--tx-3);
  }
  .foot-bottom span{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;}

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .wrap{padding:0 24px;}
    .head-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px;}
    .site-header{height:auto;}
    .seg{order:3;width:100%;margin-left:0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
      mask-image:linear-gradient(90deg,#000 88%,transparent);
      -webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);
    }
    .seg::-webkit-scrollbar{display:none;}
    .btn-cta{margin-left:auto;}
    .cat-hero h1{font-size:34px;}
    .lead-card{grid-template-columns:1fr;}
    .lead-media{min-height:230px;aspect-ratio:16/9;}
    .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .checklist-grid{grid-template-columns:1fr;}
    .foot-grid{grid-template-columns:1fr 1fr;}
    .foot-brand{grid-column:1 / -1;}
  }
  @media (max-width:768px){
    body{font-size:16px;}
    .cat-hero{margin-top:14px;min-height:0;}
    .hero-card{padding:26px;}
    .cat-hero h1{font-size:30px;}
    .hero-sub{font-size:15.5px;}
    .section{padding:56px 0 0;}
    .section-head h2{font-size:24px;}
    .section-head h2::before{height:20px;}
    .lead-body{padding:24px;}
    .lead-body h3{font-size:21px;}
    .card-grid{grid-template-columns:1fr;gap:18px;}
    .cta-band h2{font-size:23px;}
    .cta-band{min-height:180px;padding:34px 20px;}
    .site-footer{margin-top:64px;padding-top:48px;}
  }
  @media (max-width:520px){
    .wrap{padding:0 18px;}
    .logo-text{font-size:15px;}
    .logo-text small{font-size:10px;}
    .cat-hero h1{font-size:26px;}
    .hero-card{padding:20px;}
    .lead-media{min-height:180px;}
    .step-grid{grid-template-columns:1fr;}
    .foot-grid{grid-template-columns:1fr;gap:30px;}
    .foot-bottom{flex-direction:column;align-items:flex-start;}
  }

/* roulang page: article */
:root{
  --bg-0:#060913; --bg-1:#0B1120; --bg-2:#121A2E;
  --glass:rgba(255,255,255,.06); --glass-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10); --hl:rgba(255,255,255,.14);
  --main:#16E0C0; --sub:#6E5BFF; --amber:#FFB65C;
  --t1:#F2F5FF; --t2:#A9B4CC; --t3:#6F7C99; --ink:#04140F;
  --r-s:10px; --r-c:16px; --r-l:22px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 8px 30px rgba(0,0,0,.45);
  --sh-3:0 18px 50px rgba(0,0,0,.60);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;padding:0;background:var(--bg-0);color:var(--t1);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.85;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
html body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(22,224,192,.12), transparent 62%),
    radial-gradient(680px 400px at 88% 4%, rgba(110,91,255,.14), transparent 60%);
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,9,19,.84);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(255,255,255,.04), 0 12px 30px rgba(0,0,0,.35);
  transition:background .2s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,9,19,.94)}
.head-inner{display:flex;align-items:center;gap:18px;min-height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(22,224,192,.22),rgba(110,91,255,.18));
  border:1px solid rgba(22,224,192,.35);
  box-shadow:0 0 18px rgba(22,224,192,.25), inset 0 1px 0 rgba(255,255,255,.16);
}
.logo-mark svg{width:22px;height:22px}
.logo-text{display:flex;flex-direction:column;line-height:1.15;font-weight:700;font-size:16px;letter-spacing:.01em;color:var(--t1)}
.logo-text small{font-size:11px;font-weight:400;color:var(--t3);letter-spacing:.03em;margin-top:2px}
.seg{
  display:flex;align-items:center;gap:4px;margin-left:auto;padding:4px;border-radius:999px;
  background:rgba(255,255,255,.035);
  box-shadow:inset 0 2px 6px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.06);
  overflow-x:auto;scrollbar-width:none;max-width:100%;
}
.seg::-webkit-scrollbar{display:none}
.seg a{
  flex:0 0 auto;padding:7px 15px;border-radius:999px;font-size:13.5px;color:var(--t2);white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.seg a:hover{background:rgba(255,255,255,.09);color:var(--t1)}
.seg a.active{
  background:linear-gradient(180deg,#41F2D6,#12C7AB);color:var(--ink);font-weight:600;
  box-shadow:0 0 16px rgba(22,224,192,.45), inset 0 1px 0 rgba(255,255,255,.45);
}
.btn-cta{
  flex:0 0 auto;padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink);
  background:linear-gradient(180deg,#41F2D6,#12C7AB);
  box-shadow:0 0 12px rgba(22,224,192,.45),0 0 28px rgba(22,224,192,.22);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-cta:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 20px rgba(22,224,192,.55),0 0 46px rgba(22,224,192,.32)}
.btn-cta:active{transform:translateY(-1px)}

/* ===== article hero ===== */
.art-hero{
  position:relative;padding:34px 0 46px;overflow:hidden;
  background:linear-gradient(180deg,rgba(11,17,32,.92),rgba(6,9,19,.98));
  border-bottom:1px solid var(--line);
}
.art-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(115deg,rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(25deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:38px 38px,38px 38px;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);position:relative;z-index:1}
.crumbs a{color:var(--t3);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--main)}
.crumbs .sep{color:rgba(255,255,255,.22)}
.crumbs .cur{color:var(--t2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.art-hero-inner{position:relative;z-index:1;margin-top:26px;max-width:920px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--t2);
}
.badge-main{color:var(--main);border-color:rgba(22,224,192,.42);background:rgba(22,224,192,.10);box-shadow:0 0 16px rgba(22,224,192,.18)}
.badge-sub{color:#C6BEFF;border-color:rgba(110,91,255,.45);background:rgba(110,91,255,.12)}
.badge-amber{color:var(--amber);border-color:rgba(255,182,92,.42);background:rgba(255,182,92,.10)}
.art-title{
  margin:18px 0 0;font-size:46px;line-height:1.18;font-weight:700;letter-spacing:-.01em;
  color:var(--t1);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13.5px;color:var(--t3)}
.meta-row .dot{width:1px;height:13px;background:rgba(255,255,255,.18);display:inline-block}
.meta-row b{color:var(--t2);font-weight:500}
.meta-row #readTime{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--t2)}

/* ===== layout ===== */
.art-main{padding:52px 0 88px}
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:44px;align-items:start}
.art-content{min-width:0}
.art-cover{margin:0 0 34px;border-radius:var(--r-c);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);background:linear-gradient(180deg,#0d1426,#080d18)}
.art-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.art-body-card{
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-l);padding:38px 40px;
  box-shadow:var(--sh-2);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.article-body{font-size:17px;line-height:1.9;color:#E2E8F7;max-width:820px}
.article-body p{margin:0 0 1.15em}
.article-body h2{position:relative;font-size:26px;line-height:1.36;font-weight:700;margin:48px 0 18px;padding-left:16px;color:var(--t1)}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;background:var(--main);box-shadow:0 0 12px rgba(22,224,192,.75)}
.article-body h3{font-size:19px;font-weight:600;margin:30px 0 12px;color:var(--t1)}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--t2)}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.5em}
.article-body li{margin:.42em 0}
.article-body ul li::marker{color:var(--main)}
.article-body ol li::marker{color:var(--main);font-family:ui-monospace,Menlo,monospace}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;border-left:3px solid var(--sub);border-radius:0 14px 14px 0;
  background:var(--glass);color:var(--t2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:8px 0 0}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--t3);margin-top:9px}
.article-body a{color:var(--main);border-bottom:1px solid rgba(22,224,192,.38);transition:border-color .18s var(--ease)}
.article-body a:hover{border-bottom-color:var(--main)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border-radius:12px;overflow:hidden}
.article-body thead th{background:rgba(255,255,255,.09);text-align:left;padding:13px 15px;font-weight:600;color:var(--t1)}
.article-body td{padding:12px 15px;border-top:1px solid rgba(255,255,255,.07);color:var(--t2)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body code{background:rgba(255,255,255,.09);padding:2px 7px;border-radius:6px;font-family:ui-monospace,Menlo,monospace;font-size:14px;color:#BDF6EA}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0}

/* empty state */
.empty-state{
  text-align:center;padding:70px 24px;border:1px dashed rgba(255,255,255,.16);border-radius:var(--r-l);
  background:rgba(255,255,255,.03);
}
.empty-state .ico{width:58px;height:58px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;background:rgba(22,224,192,.10);border:1px solid rgba(22,224,192,.3);color:var(--main);font-size:24px}
.empty-state p{color:var(--t2);margin:0 0 18px;font-size:15px}

/* ===== sections in article ===== */
.art-block{margin-top:44px;padding-top:34px;border-top:1px solid var(--line)}
.block-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
.block-title h2{margin:0;font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px;color:var(--t1)}
.block-title h2::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--main);box-shadow:0 0 12px rgba(22,224,192,.9)}
.block-title .more{font-size:13.5px;color:var(--t2);display:inline-flex;align-items:center;gap:6px;transition:color .18s var(--ease),transform .18s var(--ease)}
.block-title .more:hover{color:var(--main);transform:translateX(4px)}

.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:13px;
  color:var(--t2);background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.tag:hover{color:var(--main);border-color:rgba(22,224,192,.45);background:rgba(22,224,192,.08);transform:translateY(-2px)}

.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pn-card{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;border-radius:var(--r-c);
  background:var(--glass);border:1px solid var(--line);transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.pn-card:hover{transform:translateY(-4px);border-color:rgba(22,224,192,.42);background:rgba(255,255,255,.08)}
.pn-card .dir{font-size:12px;letter-spacing:.06em;color:var(--t3);display:flex;align-items:center;gap:6px}
.pn-card strong{font-size:15.5px;font-weight:600;color:var(--t1);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pn-card.next{text-align:right;align-items:flex-end}

.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rec-card{
  display:block;border-radius:var(--r-c);overflow:hidden;background:var(--glass);border:1px solid var(--line);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.rec-card:hover{transform:translateY(-6px);border-color:rgba(22,224,192,.45);box-shadow:var(--sh-3)}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,#111a2e,#0a1020)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease),filter .3s var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.05);filter:brightness(1.06)}
.rec-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 42%,rgba(6,9,19,.85))}
.rec-thumb .badge{position:absolute;top:12px;left:12px;z-index:2}
.rec-body{padding:16px 18px 20px}
.rec-body h3{margin:0 0 8px;font-size:15.5px;font-weight:600;line-height:1.55;color:var(--t1)}
.rec-body p{margin:0;font-size:13.5px;color:var(--t3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--ink);
  background:linear-gradient(180deg,#41F2D6,#12C7AB);
  box-shadow:0 0 12px rgba(22,224,192,.45),0 0 28px rgba(22,224,192,.26);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-main:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 20px rgba(22,224,192,.55),0 0 46px rgba(22,224,192,.32)}
.btn-main:active{transform:translateY(-1px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--t1);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(22,224,192,.5);background:rgba(22,224,192,.08);color:var(--main)}

/* ===== sidebar ===== */
.art-side{position:relative}
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  border-radius:var(--r-c);border:1px solid var(--line);padding:20px 20px 22px;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:var(--sh-2);
}
.side-card h3{margin:0 0 14px;font-size:14px;letter-spacing:.04em;color:var(--t2);font-weight:600;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--sub);box-shadow:0 0 10px rgba(110,91,255,.9)}
.toc-list{list-style:none;padding:0;margin:0;border-left:1px solid rgba(255,255,255,.12);max-height:340px;overflow-y:auto}
.toc-list li{margin:0}
.toc-list a{display:block;padding:7px 0 7px 14px;font-size:13.5px;color:var(--t3);line-height:1.6;border-left:2px solid transparent;margin-left:-1px;transition:color .18s var(--ease),border-color .18s var(--ease),padding-left .18s var(--ease)}
.toc-list a:hover,.toc-list a.on{color:var(--main);border-left-color:var(--main);padding-left:17px}
.toc-list .lvl3 a{padding-left:26px;font-size:13px}
.toc-empty{font-size:13px;color:var(--t3);margin:0}
.hot-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.hot-list a{
  display:flex;align-items:center;gap:12px;padding:10px;border-radius:12px;
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.hot-list a:hover{background:rgba(255,255,255,.07);transform:translateX(4px)}
.hot-list img{width:56px;height:56px;border-radius:10px;object-fit:cover;flex:0 0 auto;background:#0d1426}
.hot-list .hx{min-width:0}
.hot-list strong{display:block;font-size:14px;font-weight:600;color:var(--t1);line-height:1.5;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.hot-list span{font-size:12px;color:var(--t3);font-family:ui-monospace,Menlo,monospace}
.side-help{font-size:13.5px;color:var(--t2);line-height:1.8;margin:0}
.side-help + .side-help{margin-top:10px}

/* ===== CTA banner ===== */
.cta-banner{
  position:relative;margin:0 0 0;padding:56px 0;overflow:hidden;
  background:linear-gradient(180deg,rgba(11,17,32,.96),rgba(6,9,19,.98));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(115deg,rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(25deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:34px 34px,34px 34px;
}
.cta-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 240px at 50% 120%, rgba(22,224,192,.22), transparent 70%);
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{margin:0 0 12px;font-size:28px;font-weight:700;color:var(--t1)}
.cta-inner p{margin:0 0 24px;color:var(--t2);font-size:15px}
.cta-inner .btn-row{justify-content:center;margin-top:0}

/* ===== footer ===== */
.site-footer{position:relative;z-index:1;background:rgba(6,9,19,.96);border-top:1px solid var(--line);padding:60px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{margin:0 0 14px;font-size:13.5px;color:var(--t3);line-height:1.85;max-width:34ch}
.foot-brand .kw{font-size:12px;letter-spacing:.03em;color:var(--t2);padding:7px 13px;border-radius:999px;display:inline-block;background:rgba(255,255,255,.05);border:1px solid var(--line)}
.foot-col h4{margin:0 0 16px;font-size:14px;font-weight:600;color:var(--t1)}
.foot-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:13.5px;color:var(--t3);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.foot-col a:hover{color:var(--main);transform:translateX(2px);text-decoration:underline;text-underline-offset:4px}
.foot-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:20px 0 26px;border-top:1px solid var(--line);font-size:13px;color:var(--t3)}
.foot-bottom span{font-family:ui-monospace,Menlo,monospace;color:var(--t3)}

/* ===== responsive ===== */
@media (max-width:1080px){
  .art-layout{grid-template-columns:1fr;gap:36px}
  .side-sticky{position:static}
  .art-title{font-size:38px}
}
@media (max-width:900px){
  .head-inner{flex-wrap:wrap;padding:10px 0;row-gap:8px;min-height:auto}
  .btn-cta{margin-left:auto}
  .seg{order:3;width:100%;margin-left:0;justify-content:flex-start;
       -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 22px,#000 calc(100% - 22px),transparent 100%);
       mask-image:linear-gradient(90deg,transparent 0,#000 22px,#000 calc(100% - 22px),transparent 100%);}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .wrap{padding:0 22px}
  .art-hero{padding:24px 0 34px}
  .art-title{font-size:30px}
  .art-main{padding:38px 0 64px}
  .art-body-card{padding:24px 20px;border-radius:var(--r-c)}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin-top:38px}
  .pn-grid{grid-template-columns:1fr}
  .pn-card.next{text-align:left;align-items:flex-start}
  .rec-grid{grid-template-columns:1fr}
  .cta-inner h2{font-size:23px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cover-optional{display:none}
}
@media (max-width:520px){
  .logo-text small{display:none}
  .foot-grid{grid-template-columns:1fr}
  .head-inner{gap:12px}
  .btn-cta{padding:8px 16px;font-size:13px}
  .meta-row{font-size:12.5px}
  .crumbs .cur{max-width:26ch}
}

/* roulang page: category3 */
:root{
  --bg-0:#060913;
  --bg-1:#0B1120;
  --bg-2:#121A2E;
  --line:rgba(255,255,255,.10);
  --line-hi:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.08);
  --acc:#16E0C0;
  --acc-2:#6E5BFF;
  --amber:#FFB65C;
  --t1:#F2F5FF;
  --t2:#A9B4CC;
  --t3:#6F7C99;
  --on-acc:#04140F;
  --r-s:10px;
  --r-c:16px;
  --r-l:22px;
  --pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.30);
  --sh-2:0 8px 30px rgba(0,0,0,.45);
  --sh-3:0 18px 50px rgba(0,0,0,.55);
  --glow-in:0 0 12px rgba(22,224,192,.45);
  --glow-out:0 0 28px rgba(22,224,192,.28);
  --ease:cubic-bezier(.2,.8,.2,1) 200ms;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg-0);
  color:var(--t1);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(22,224,192,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(110,91,255,.12), transparent 60%);
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease),opacity var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--acc);
  outline-offset:2px;
  border-radius:6px;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.005em;}
:focus:not(:focus-visible){outline:none;}

.wrap{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:64px;
  display:flex;
  align-items:center;
  background:rgba(6,9,19,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--line-hi),transparent);
  opacity:.9;
}
.site-header.is-scrolled{
  background:rgba(9,14,28,.90);
  box-shadow:0 10px 34px rgba(0,0,0,.42);
}
.head-inner{
  display:flex;
  align-items:center;
  gap:20px;
  width:100%;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(150deg,rgba(22,224,192,.20),rgba(110,91,255,.20));
  border:1px solid var(--line);
  box-shadow:var(--glow-in);
  flex:0 0 auto;
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{
  display:flex;
  flex-direction:column;
  font-size:17px;
  font-weight:700;
  line-height:1.15;
  color:var(--t1);
}
.logo-text small{
  font-size:11px;
  font-weight:400;
  color:var(--t3);
  letter-spacing:.06em;
  margin-top:2px;
}
.logo:hover .logo-text{color:var(--acc);}

.seg{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
  padding:4px;
  border-radius:var(--pill);
  background:rgba(4,7,15,.72);
  border:1px solid var(--line);
  box-shadow:inset 0 2px 10px rgba(0,0,0,.55);
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  max-width:100%;
}
.seg::-webkit-scrollbar{display:none;}
.seg a{
  flex:0 0 auto;
  padding:7px 16px;
  border-radius:var(--pill);
  font-size:14px;
  color:var(--t2);
  white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.seg a:hover{background:var(--glass-2);color:var(--t1);}
.seg a.active{
  background:linear-gradient(140deg,#16E0C0,#0FC7AC);
  color:var(--on-acc);
  font-weight:600;
  box-shadow:var(--glow-in);
}

.btn-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 20px;
  border-radius:var(--pill);
  font-size:14px;
  font-weight:600;
  color:var(--on-acc);
  background:linear-gradient(140deg,#1CF0CE,#0FC2A8);
  box-shadow:var(--glow-in),var(--glow-out);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn-cta:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:var(--glow-in),0 0 46px rgba(22,224,192,.42);
}
.btn-cta:active{transform:translateY(-1px);}

/* ---------- Buttons ---------- */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--pill);
  font-size:15px;
  font-weight:600;
  color:var(--on-acc);
  background:linear-gradient(140deg,#1CF0CE,#0FBFA5);
  box-shadow:var(--glow-in),var(--glow-out);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn-main:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:var(--glow-in),0 0 46px rgba(22,224,192,.42);
}
.btn-main:active{transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--pill);
  font-size:15px;
  font-weight:600;
  color:var(--t1);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform var(--ease),border-color var(--ease),background-color var(--ease);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  border-color:rgba(22,224,192,.55);
  background:var(--glass-2);
}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--t2);
}
.btn-text:hover{color:var(--acc);}
.btn-text span{transition:transform var(--ease);}
.btn-text:hover span{transform:translateX(4px);}

/* ---------- Breadcrumb ---------- */
.crumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--t3);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--acc);}
.crumb .sep{color:var(--t3);opacity:.7;}
.crumb .now{color:var(--t1);font-weight:600;}

/* ---------- Category Hero ---------- */
.cat-hero{
  position:relative;
  margin-top:20px;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  background:var(--bg-1);
  isolation:isolate;
}
.cat-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
  z-index:-2;
}
.cat-hero .hero-mask{
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    linear-gradient(100deg,rgba(5,8,18,.94) 0%,rgba(5,8,18,.82) 44%,rgba(5,8,18,.62) 100%),
    linear-gradient(0deg,rgba(5,8,18,.96) 0%,rgba(5,8,18,.20) 58%,rgba(5,8,18,.10) 100%);
}
.hero-card{
  max-width:720px;
  padding:52px 40px 48px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--pill);
  font-size:12px;
  letter-spacing:.04em;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--t2);
}
.badge.acc{color:var(--acc);border-color:rgba(22,224,192,.40);background:rgba(22,224,192,.10);}
.badge.vio{color:#BFB6FF;border-color:rgba(110,91,255,.42);background:rgba(110,91,255,.14);}
.badge.amber{color:var(--amber);border-color:rgba(255,182,92,.38);background:rgba(255,182,92,.12);}

.hero-card h1{
  font-size:46px;
  line-height:1.18;
  margin:18px 0 16px;
}
.hero-card h1 em{
  font-style:normal;
  color:var(--acc);
  text-shadow:0 0 26px rgba(22,224,192,.35);
}
.hero-lead{
  font-size:16px;
  color:var(--t2);
  line-height:1.9;
  max-width:660px;
}
.pill-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--pill);
  font-size:13px;
  color:var(--t2);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.pill b{
  color:var(--t1);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-weight:600;
}
.pill .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--acc);
  box-shadow:0 0 10px rgba(22,224,192,.9);
}

/* ---------- Chip bar ---------- */
.chipbar{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-top:26px;
  padding:14px 16px;
  border-radius:var(--r-c);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.chipbar .lbl{
  font-size:13px;
  color:var(--t3);
  margin-right:6px;
}
.chip{
  padding:7px 16px;
  border-radius:var(--pill);
  font-size:13px;
  color:var(--t2);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}
.chip:hover{background:var(--glass-2);color:var(--t1);}
.chip.on{
  color:var(--on-acc);
  font-weight:600;
  background:linear-gradient(140deg,#16E0C0,#0FC7AC);
  border-color:transparent;
  box-shadow:var(--glow-in);
}

/* ---------- Section base ---------- */
.section{padding:76px 0 0;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
  flex-wrap:wrap;
}
.sec-head h2{
  font-size:32px;
  line-height:1.24;
}
.sec-head h2::before{
  content:"";
  display:block;
  width:44px;height:3px;
  border-radius:3px;
  margin-bottom:14px;
  background:linear-gradient(90deg,var(--acc),rgba(22,224,192,0));
  box-shadow:0 0 14px rgba(22,224,192,.6);
}
.sec-head p{
  font-size:14px;
  color:var(--t3);
  max-width:560px;
}
.sec-head .head-right{display:flex;align-items:center;gap:14px;}

/* ---------- Compare panel ---------- */
.compare{
  display:grid;
  grid-template-columns:1fr 1px 1fr;
  gap:0;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-2);
}
.cmp-col{padding:34px 32px 36px;}
.cmp-div{
  width:1px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.16),transparent);
}
.cmp-col h3{
  font-size:20px;
  display:flex;
  align-items:center;
  gap:10px;
}
.cmp-col h3 .tagline{
  font-size:12px;
  font-weight:500;
  padding:3px 10px;
  border-radius:var(--pill);
}
.cmp-col.self h3 .tagline{color:var(--acc);background:rgba(22,224,192,.12);border:1px solid rgba(22,224,192,.34);}
.cmp-col.need h3 .tagline{color:#BFB6FF;background:rgba(110,91,255,.16);border:1px solid rgba(110,91,255,.40);}
.cmp-col > p{
  margin-top:12px;
  font-size:14px;
  color:var(--t2);
  line-height:1.85;
}
.cmp-list{margin-top:20px;display:grid;gap:12px;}
.cmp-list li{
  position:relative;
  padding-left:24px;
  font-size:14.5px;
  color:var(--t2);
  line-height:1.8;
}
.cmp-list li::before{
  content:"";
  position:absolute;
  left:4px;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--acc);
  box-shadow:0 0 12px rgba(22,224,192,.85);
}
.cmp-col.need .cmp-list li::before{
  background:var(--acc-2);
  box-shadow:0 0 12px rgba(110,91,255,.85);
}
.cmp-list li b{color:var(--t1);font-weight:600;}
.cmp-media{
  margin-top:22px;
  border-radius:var(--r-c);
  overflow:hidden;
  border:1px solid var(--line);
  position:relative;
}
.cmp-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cmp-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(6,9,19,.72),rgba(6,9,19,.05));
}
.cmp-media figcaption{
  position:absolute;
  left:14px;bottom:12px;
  z-index:2;
  font-size:12px;
  color:var(--t2);
  letter-spacing:.04em;
}

/* ---------- Direction cards ---------- */
.dir-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.dir-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-c);
  overflow:hidden;
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.dir-card:hover{
  transform:translateY(-6px);
  border-color:rgba(22,224,192,.55);
  box-shadow:var(--sh-3),0 0 26px rgba(22,224,192,.18);
}
.dir-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(140deg,#0C1425,#131C33);
}
.dir-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 420ms var(--ease),filter 420ms var(--ease);
}
.dir-card:hover .dir-thumb img{transform:scale(1.05);filter:brightness(1.06);}
.dir-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(6,9,19,.86),rgba(6,9,19,.06) 60%);
}
.dir-thumb .cap{
  position:absolute;
  left:16px;bottom:12px;
  z-index:2;
  font-size:16px;
  font-weight:600;
  color:var(--t1);
}
.dir-thumb .badge{position:absolute;right:12px;top:12px;z-index:2;}
.dir-body{
  padding:20px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:14px;
  flex:1;
}
.dir-body p{
  font-size:14px;
  color:var(--t2);
  line-height:1.85;
}
.dir-points{display:grid;gap:9px;}
.dir-points li{
  position:relative;
  padding-left:18px;
  font-size:13.5px;
  color:var(--t2);
}
.dir-points li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--acc-2);
  box-shadow:0 0 10px rgba(110,91,255,.75);
}
.dir-body .btn-text{margin-top:auto;}

/* ---------- Steps band ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
  padding:32px;
  border-radius:var(--r-l);
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(22,224,192,.07),rgba(110,91,255,.07) 70%,rgba(255,255,255,.02));
  box-shadow:var(--sh-2);
}
.step{
  padding:22px 22px 24px;
  border-radius:var(--r-c);
  background:rgba(8,12,24,.62);
  border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(22,224,192,.42);}
.step .num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:26px;
  font-weight:700;
  color:transparent;
  background:linear-gradient(140deg,#1CF0CE,#6E5BFF);
  -webkit-background-clip:text;
  background-clip:text;
  line-height:1;
}
.step h3{font-size:18px;margin:12px 0 8px;}
.step p{font-size:14px;color:var(--t2);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  border-radius:var(--r-c);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color var(--ease),background-color var(--ease);
}
.faq-item:hover{border-color:rgba(22,224,192,.35);background:var(--glass-2);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  padding:16px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:16px;
  font-weight:600;
  color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .ico{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);
  color:var(--acc);
  font-size:15px;
  line-height:1;
  transition:transform var(--ease),background-color var(--ease);
}
.faq-item[open] summary .ico{transform:rotate(90deg);background:rgba(22,224,192,.14);}
.faq-item .ans{
  padding:0 22px 20px;
  font-size:14.5px;
  color:var(--t2);
  line-height:1.85;
  border-top:1px solid var(--line);
  padding-top:16px;
  margin:0 22px 20px;
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  margin-top:76px;
  min-height:220px;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  text-align:center;
  padding:36px 24px;
  background:var(--bg-1);
  box-shadow:var(--sh-2);
}
.cta-band .grid-tex{
  position:absolute;inset:0;
  background-image:
    linear-gradient(115deg,rgba(255,255,255,.06) 0 1px,transparent 1px 100%),
    linear-gradient(25deg,rgba(255,255,255,.05) 0 1px,transparent 1px 100%);
  background-size:38px 38px,44px 44px;
  opacity:.5;
}
.cta-band .glow{
  position:absolute;
  width:620px;height:320px;
  left:50%;top:50%;
  transform:translate(-50%,-50%);
  background:radial-gradient(closest-side,rgba(22,224,192,.26),rgba(22,224,192,0));
  pointer-events:none;
}
.cta-band .inner{position:relative;z-index:2;display:grid;justify-items:center;gap:20px;}
.cta-band h2{font-size:30px;line-height:1.3;}
.cta-band p{font-size:15px;color:var(--t2);max-width:620px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:88px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,17,32,.72),rgba(6,9,19,.96));
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.20),transparent);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding:56px 0 40px;
}
.foot-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--t2);
  line-height:1.85;
  max-width:360px;
}
.foot-brand .kw{
  margin-top:16px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--acc);
}
.foot-col h4{
  font-size:14px;
  color:var(--t1);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.foot-col ul{display:grid;gap:11px;}
.foot-col a{
  font-size:14px;
  color:var(--t2);
  display:inline-block;
}
.foot-col a:hover{
  color:var(--acc);
  transform:translateX(2px);
  text-decoration:underline;
  text-underline-offset:4px;
}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--t3);
}
.foot-bottom span{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  letter-spacing:.04em;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .wrap{padding:0 24px;}
  .seg{display:none;}
  .head-inner{justify-content:space-between;}
  .hero-card{padding:44px 30px 40px;}
  .hero-card h1{font-size:36px;}
  .sec-head h2{font-size:26px;}
  .compare{grid-template-columns:1fr;}
  .cmp-div{width:100%;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);}
  .dir-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;padding:24px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding-top:64px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .wrap{padding:0 20px;}
  .site-header{height:56px;}
  .logo-text{font-size:15px;}
  .logo-text small{display:none;}
  .btn-cta{padding:8px 16px;font-size:13px;}
  .hero-card{padding:32px 20px 34px;}
  .hero-card h1{font-size:30px;}
  .hero-lead{font-size:15px;}
  .cmp-col{padding:26px 22px 28px;}
  .faq-item summary{font-size:15px;padding:14px 18px;}
  .faq-item .ans{margin:0 18px 18px;padding:14px 0 0;}
  .cta-band{min-height:180px;margin-top:64px;}
  .cta-band h2{font-size:23px;}
  .foot-grid{grid-template-columns:1fr;padding:44px 0 32px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .section{padding-top:56px;}
}
@media (max-width:520px){
  .dir-grid{gap:18px;}
  .chipbar{padding:12px;}
  .chip{padding:6px 13px;font-size:12.5px;}
  .pill-row{gap:8px;}
  .pill{font-size:12.5px;padding:7px 13px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060913;
  --bg-1:#0B1120;
  --bg-2:#121A2E;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-hi:rgba(255,255,255,.14);
  --acc:#16E0C0;
  --acc-soft:rgba(22,224,192,.45);
  --acc2:#6E5BFF;
  --amber:#FFB65C;
  --tx:#F2F5FF;
  --tx2:#A9B4CC;
  --tx3:#6F7C99;
  --r-s:10px;
  --r:16px;
  --r-l:22px;
  --r-p:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 8px 30px rgba(0,0,0,.45);
  --sh-3:0 18px 60px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.8,.2,1) 200ms;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg-0);
  color:var(--tx);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:8px;}

.wrap{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,9,19,.74);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.site-header.is-scrolled{background:rgba(6,9,19,.9);}
.head-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.logo-mark{
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  border-radius:9px;
  background:rgba(22,224,192,.10);
  border:1px solid rgba(22,224,192,.35);
  box-shadow:0 0 16px rgba(22,224,192,.22);
  flex:none;
}
.logo-mark svg{width:20px;height:20px;display:block;}
.logo-text{
  display:flex;
  flex-direction:column;
  font-size:16px;
  font-weight:700;
  line-height:1.15;
  letter-spacing:.01em;
  white-space:nowrap;
}
.logo-text small{
  font-size:11px;
  font-weight:400;
  color:var(--tx3);
  letter-spacing:.08em;
}

.seg{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
  padding:4px;
  border-radius:var(--r-p);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 3px rgba(0,0,0,.55);
  max-width:100%;
  overflow:hidden;
}
.seg a{
  padding:7px 14px;
  border-radius:var(--r-p);
  font-size:13.5px;
  color:var(--tx2);
  white-space:nowrap;
  transition:var(--ease);
}
.seg a:hover{background:rgba(255,255,255,.07);color:var(--tx);}
.seg a.active{
  background:linear-gradient(135deg,#16E0C0,#12C9AE);
  color:#04140F;
  font-weight:600;
  box-shadow:0 0 12px var(--acc-soft);
}

.btn-cta{
  flex:none;
  padding:9px 20px;
  border-radius:var(--r-p);
  font-size:14px;
  font-weight:600;
  color:#04140F;
  background:linear-gradient(135deg,#16E0C0,#12C9AE);
  box-shadow:0 0 12px rgba(22,224,192,.45),0 0 28px rgba(22,224,192,.20);
  transition:var(--ease);
  white-space:nowrap;
}
.btn-cta:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 0 18px rgba(22,224,192,.60),0 0 46px rgba(22,224,192,.30);
}
.btn-cta:active{transform:translateY(-1px);}

/* ---------- 面包屑 ---------- */
.crumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--tx3);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.crumb a{color:var(--tx3);transition:var(--ease);}
.crumb a:hover{color:var(--acc);}
.crumb .sep{color:rgba(255,255,255,.18);}
.crumb .cur{color:var(--tx2);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  transform:scale(1.04);
}
.page-hero-mask{
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(6,9,19,.95) 0%,rgba(6,9,19,.80) 46%,rgba(6,9,19,.58) 100%),
    linear-gradient(180deg,rgba(6,9,19,.25) 0%,rgba(6,9,19,.60) 68%,var(--bg-0) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  padding-top:62px;
  padding-bottom:58px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 13px;
  border-radius:var(--r-p);
  font-size:12px;
  letter-spacing:.02em;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--tx2);
}
.badge-acc{
  color:#8DFFF0;
  border-color:rgba(22,224,192,.45);
  background:rgba(22,224,192,.10);
}
.badge-acc::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--acc);
  box-shadow:0 0 8px var(--acc);
}
.page-hero h1{
  margin-top:18px;
  font-size:clamp(28px,4.1vw,46px);
  font-weight:700;
  line-height:1.18;
  letter-spacing:-.01em;
  max-width:860px;
}
.hero-lead{
  margin-top:18px;
  max-width:760px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--tx2);
}
.hero-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 15px;
  border-radius:var(--r-p);
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  font-size:12.5px;
  color:var(--tx2);
}
.pill b{
  font-family:var(--mono);
  font-size:13px;
  font-weight:600;
  color:var(--acc);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--r-p);
  font-size:14.5px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--ease);
}
.btn-primary{
  color:#04140F;
  background:linear-gradient(135deg,#16E0C0,#12C9AE);
  box-shadow:0 0 12px rgba(22,224,192,.45),0 0 28px rgba(22,224,192,.22);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 0 18px rgba(22,224,192,.60),0 0 46px rgba(22,224,192,.32);
}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--tx);
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{
  border-color:rgba(22,224,192,.5);
  background:rgba(22,224,192,.08);
  transform:translateY(-2px);
}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--acc);
  transition:var(--ease);
}
.btn-link:hover{transform:translateX(4px);}

/* ---------- 筛选 chip 条 ---------- */
.chipbar{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  padding:26px 0 0;
}
.chip{
  padding:8px 16px;
  border-radius:var(--r-p);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:13.5px;
  color:var(--tx2);
  transition:var(--ease);
  white-space:nowrap;
}
.chip:hover{
  color:var(--tx);
  border-color:rgba(22,224,192,.5);
  background:rgba(22,224,192,.08);
}
.chip.active{
  color:#8DFFF0;
  border-color:rgba(22,224,192,.6);
  background:rgba(22,224,192,.14);
  box-shadow:0 0 14px rgba(22,224,192,.18);
}

/* ---------- 板块通用 ---------- */
.sec{padding:78px 0;}
.sec-tight{padding:64px 0 78px;}
.sec-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:38px;
  flex-wrap:wrap;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--acc);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--acc),transparent);
}
.sec-head h2{
  font-size:clamp(23px,3vw,32px);
  font-weight:700;
  line-height:1.25;
}
.sec-sub{
  margin-top:10px;
  font-size:14.5px;
  color:var(--tx2);
  max-width:620px;
}

/* ---------- 编号时间线 ---------- */
.timeline{
  display:flex;
  flex-direction:column;
}
.tl-item{
  display:grid;
  grid-template-columns:64px 1fr;
  column-gap:24px;
  padding-bottom:40px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-rail{
  position:relative;
  display:flex;
  justify-content:center;
}
.tl-rail::before{
  content:"";
  position:absolute;
  top:44px;
  bottom:-40px;
  left:50%;
  width:1px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(22,224,192,.55),rgba(110,91,255,.30),rgba(110,91,255,0));
}
.tl-item:last-child .tl-rail::before{display:none;}
.tl-dot{
  width:38px;
  height:38px;
  border-radius:var(--r-p);
  display:grid;
  place-items:center;
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  color:#04140F;
  background:linear-gradient(135deg,#16E0C0,#12C9AE);
  box-shadow:0 0 14px rgba(22,224,192,.5);
  position:relative;
  z-index:1;
  flex:none;
}
.tl-card{
  position:relative;
  background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:22px 24px;
  box-shadow:var(--sh-2);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:var(--ease);
}
.tl-card::before{
  content:"";
  position:absolute;
  top:0;
  left:24px;
  right:24px;
  height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.18),rgba(255,255,255,0));
}
.tl-card:hover{
  border-color:rgba(22,224,192,.35);
  transform:translateY(-3px);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
}
.tl-body{
  display:flex;
  gap:22px;
  align-items:flex-start;
}
.tl-text{flex:1 1 auto;min-width:0;}
.tl-text h3{
  font-size:19px;
  font-weight:600;
  margin-bottom:8px;
}
.tl-text p{
  font-size:15px;
  line-height:1.85;
  color:var(--tx2);
}
.tl-tag{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  margin-bottom:10px;
  border-radius:var(--r-p);
  font-size:11.5px;
  letter-spacing:.02em;
  color:#C9C0FF;
  border:1px solid rgba(110,91,255,.42);
  background:rgba(110,91,255,.14);
}
.tl-tag.amber{
  color:#FFD9A8;
  border-color:rgba(255,182,92,.42);
  background:rgba(255,182,92,.13);
}
.tl-thumb{
  width:158px;
  flex:none;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--bg-2);
}

/* ---------- 三卡网格 ---------- */
.grid3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.card-soft{
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:var(--ease);
  display:flex;
  flex-direction:column;
  gap:10px;
}
.card-soft:hover{
  transform:translateY(-4px);
  border-color:rgba(22,224,192,.32);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
}
.card-soft .num{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--acc);
}
.card-soft h3{
  font-size:17.5px;
  font-weight:600;
}
.card-soft p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--tx2);
}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:920px;
}
.faq-item{
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.028));
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:var(--ease);
  overflow:hidden;
}
.faq-item:hover{border-color:rgba(255,255,255,.18);}
.faq-item[open]{border-color:rgba(22,224,192,.32);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:56px;
  padding:16px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--tx);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;
  width:16px;
  height:16px;
  flex:none;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--acc);
  border-radius:2px;
  transition:var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-body{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--tx2);
  border-top:1px solid rgba(255,255,255,.06);
  padding-top:16px;
}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:-20%;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:46px 46px;
  transform:skewY(-6deg);
  opacity:.75;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(620px 220px at 50% 0%,rgba(22,224,192,.18),transparent 72%);
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  padding:64px 32px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
}
.cta-inner h2{
  font-size:clamp(22px,2.7vw,30px);
  font-weight:700;
}
.cta-inner p{
  font-size:15px;
  color:var(--tx2);
  max-width:640px;
}
.cta-inner .btn{margin-top:8px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line-hi);
  padding:56px 0 26px;
  margin-top:0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:36px;
}
.foot-brand p{
  margin:16px 0 12px;
  font-size:14px;
  line-height:1.85;
  color:var(--tx2);
  max-width:360px;
}
.foot-brand .kw{
  font-size:12px;
  letter-spacing:.03em;
  color:var(--tx3);
}
.foot-col h4{
  font-size:14px;
  font-weight:600;
  margin-bottom:14px;
  color:var(--tx);
}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{
  display:inline-block;
  font-size:14px;
  color:var(--tx2);
  transition:var(--ease);
}
.foot-col a:hover{
  color:var(--acc);
  transform:translateX(2px);
}
.foot-bottom{
  margin-top:42px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--tx3);
}
.foot-bottom span{font-family:var(--mono);font-size:12.5px;}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .foot-grid{grid-template-columns:1.5fr 1fr 1fr;}
  .grid3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:900px){
  .head-inner{
    height:auto;
    flex-wrap:wrap;
    padding-top:10px;
    padding-bottom:10px;
    gap:12px;
  }
  .seg{
    order:3;
    width:100%;
    margin:0;
    overflow-x:auto;
    justify-content:flex-start;
    scrollbar-width:none;
    -ms-overflow-style:none;
    -webkit-overflow-scrolling:touch;
  }
  .seg::-webkit-scrollbar{display:none;}
  .logo{margin-right:auto;}
  .hero-inner{padding-top:48px;padding-bottom:46px;}
  .sec{padding:62px 0;}
}
@media (max-width:768px){
  .wrap{padding:0 22px;}
  .grid3{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .foot-brand{grid-column:1 / -1;}
  .tl-item{grid-template-columns:44px 1fr;column-gap:16px;}
  .tl-dot{width:34px;height:34px;font-size:12px;}
  .tl-card{padding:18px 18px;border-radius:18px;}
  .tl-body{flex-direction:column-reverse;gap:16px;}
  .tl-thumb{width:100%;}
  .cta-inner{padding:52px 22px;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .logo-text{font-size:15px;}
  .logo-text small{display:none;}
  .btn-cta{padding:8px 16px;font-size:13.5px;}
  .hero-lead{font-size:15.5px;}
  .sec{padding:52px 0;}
  .sec-head{margin-bottom:28px;}
  .tl-item{grid-template-columns:36px 1fr;column-gap:12px;}
  .tl-dot{width:30px;height:30px;font-size:11px;}
  .faq-item summary{padding:14px 16px;font-size:15px;}
  .faq-body{padding:14px 16px 18px;}
  .foot-grid{grid-template-columns:1fr;gap:24px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}