/* roulang page: index */
:root{
  --bg:#080B0A;
  --bg-block:#0D1211;
  --card:#141A18;
  --card-hover:#1B2320;
  --primary:#2FF0A8;
  --accent:#FF6B33;
  --magenta:#FF3D8B;
  --text:#EEF5F1;
  --text-2:#9EADA6;
  --text-3:#6D7B75;
  --line:rgba(47,240,168,.14);
  --card-line:rgba(255,255,255,.07);
  --primary-soft:rgba(47,240,168,.12);
  --accent-soft:rgba(255,107,51,.12);
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 20px 44px rgba(0,0,0,.55);
  --container:1240px;
  --gap:20px;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:underline;text-underline-offset:3px;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#0A0E0D;
  border-bottom:1px solid var(--card-line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(47,240,168,.28) 38%,rgba(47,240,168,0) 82%);
}
.nav-inner{
  height:64px;display:flex;align-items:center;gap:24px;
  max-width:var(--container);margin:0 auto;padding:0 24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:30px;height:30px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--primary),#0f7a55);
  transform:skewX(-8deg);
  position:relative;
  box-shadow:0 0 18px rgba(47,240,168,.35);
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 9px;
  border-radius:2px;
  background:#08110d;
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.2px;white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:8px;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:color var(--ease),background var(--ease);
  text-decoration:none;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);text-decoration:none;}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,240,168,.6);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--card-line);color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line);background:rgba(47,240,168,.06);}
.icon-btn svg{width:18px;height:18px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn:hover{text-decoration:none;}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--accent);color:#160A03;box-shadow:0 0 0 0 rgba(255,107,51,.45);}
.btn-primary:hover{background:#FF8055;box-shadow:0 0 0 1px rgba(255,107,51,.55),0 8px 22px rgba(255,107,51,.22);}
.btn-outline{background:transparent;border-color:rgba(47,240,168,.5);color:var(--primary);}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);}
.btn-ghost{background:none;color:var(--text-2);padding:0 4px;min-height:40px;}
.btn-ghost .arw{transition:transform var(--ease);}
.btn-ghost:hover{color:var(--primary);}
.btn-ghost:hover .arw{transform:translateX(4px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.menu-toggle{display:none;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  min-height:60vh;display:flex;align-items:flex-end;
  border-bottom:1px solid var(--card-line);
}
.hero-bg{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(8,11,10,.96) 8%,rgba(8,11,10,.72) 46%,rgba(8,11,10,.38) 100%),
             url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  background-color:var(--card);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(120% 90% at 12% 100%,rgba(8,11,10,.9),transparent 62%);
}
.hero-inner{
  position:relative;z-index:2;width:100%;max-width:var(--container);
  margin:0 auto;padding:96px 24px 40px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:flex-end;
}
.hero-copy{max-width:700px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,107,51,.14);border:1px solid rgba(255,107,51,.4);
  color:#FFB08A;font-size:12.5px;font-weight:700;letter-spacing:.5px;
  margin-bottom:18px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);
  font-weight:800;line-height:1.18;letter-spacing:-.5px;
  margin:0 0 18px;
}
.hero h1 span{color:var(--primary);}
.hero-sub{
  font-size:clamp(15px,1.5vw,18px);color:var(--text-2);line-height:1.75;
  max-width:600px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.scoreboard{
  display:flex;gap:0;align-items:stretch;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(13,18,17,.82);backdrop-filter:blur(6px);
  overflow:hidden;
}
.score-item{padding:14px 22px;min-width:112px;border-left:1px solid var(--card-line);}
.score-item:first-child{border-left:0;}
.score-num{
  display:block;font-size:24px;font-weight:800;line-height:1.2;
  color:var(--primary);letter-spacing:-.5px;
}
.score-label{display:block;font-size:12px;color:var(--text-3);letter-spacing:.5px;margin-top:2px;}

/* ---------- section base ---------- */
.section{padding:72px 0;border-bottom:1px solid var(--card-line);}
.section:last-of-type{border-bottom:0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;
}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.2px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:18px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,240,168,.6);
}
.section-desc{margin-top:8px;padding-left:16px;color:var(--text-2);font-size:14.5px;line-height:1.75;}
.section-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-2);font-size:14px;font-weight:600;white-space:nowrap;
  transition:color var(--ease);
}
.section-more:hover{color:var(--primary);text-decoration:none;}
.section-more .arw{transition:transform var(--ease);}
.section-more:hover .arw{transform:translateX(4px);}

/* ---------- cards & rail ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.4px;line-height:1.6;
}
.badge-tag{background:transparent;border:1px solid rgba(47,240,168,.38);color:var(--primary);}
.badge-live{background:var(--accent);color:#180A02;border:1px solid var(--accent);}
.badge-meta{color:var(--text-3);font-size:12.5px;font-weight:500;letter-spacing:.3px;}

.rail-wrap{position:relative;}
.rail{
  display:flex;gap:var(--gap);
  overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;
  padding:4px 2px 12px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail .card{flex:0 0 292px;scroll-snap-align:start;}
.rail-btn{
  position:absolute;top:38%;z-index:5;
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(13,18,17,.92);border:1px solid var(--line);color:var(--text);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
  box-shadow:var(--shadow);
}
.rail-btn:hover{background:var(--card-hover);color:var(--primary);border-color:rgba(47,240,168,.4);}
.rail-btn.prev{left:-14px;}
.rail-btn.next{right:-14px;}

.card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,240,168,.22);
  box-shadow:var(--shadow);
  text-decoration:none;
}
a.card{color:inherit;text-decoration:none;}
.card-cover{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(140deg,#1B2320,#101614);
}
.card-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform var(--ease);
}
.card:hover .card-cover img{transform:scale(1.03);}
.card-cover .corner{
  position:absolute;right:10px;bottom:10px;
  padding:2px 8px;border-radius:6px;
  background:rgba(8,11,10,.78);border:1px solid var(--card-line);
  font-size:12px;color:var(--text);letter-spacing:.3px;
}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-title{
  font-size:18px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:6px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid var(--card-line);
}
.card-meta .arw{color:var(--text-3);transition:transform var(--ease),color var(--ease);}
.card:hover .card-meta .arw{color:var(--primary);transform:translateX(3px);}

/* ---------- spotlight ---------- */
.spotlight{display:grid;grid-template-columns:7fr 5fr;gap:var(--gap);}
.spot-main{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--card-line);min-height:380px;}
.spot-main img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform 220ms ease-out;}
.spot-main:hover img{transform:scale(1.03);}
.spot-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(6,9,8,.95) 4%,rgba(6,9,8,.55) 42%,rgba(6,9,8,.06) 82%);
}
.spot-overlay{
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:26px;color:var(--text);
}
.spot-overlay h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;margin:14px 0 10px;}
.spot-overlay p{font-size:14.5px;line-height:1.8;color:#C6D4CD;max-width:520px;}
.spot-side{display:grid;grid-template-rows:1fr 1fr;gap:var(--gap);}
.spot-small{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--card-line);background:var(--card);
  display:grid;grid-template-columns:132px minmax(0,1fr);
  transition:border-color var(--ease),transform var(--ease);
  color:inherit;text-decoration:none;
}
.spot-small:hover{border-color:rgba(47,240,168,.24);transform:translateY(-2px);text-decoration:none;}
.spot-small .thumb{position:relative;overflow:hidden;background:#101614;}
.spot-small .thumb img{width:100%;height:100%;object-fit:cover;}
.spot-small .txt{padding:16px;display:flex;flex-direction:column;gap:8px;justify-content:center;}
.spot-small h3{font-size:16.5px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.spot-small p{font-size:13.5px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- tabs ---------- */
.tabs{
  display:flex;gap:8px;flex-wrap:wrap;
  border-bottom:1px solid var(--card-line);padding-bottom:0;margin-bottom:26px;
}
.tab{
  position:relative;padding:10px 18px;border-radius:10px 10px 0 0;
  color:var(--text-3);font-size:15px;font-weight:600;
  transition:color var(--ease),background var(--ease);
}
.tab:hover{color:var(--text-2);background:rgba(255,255,255,.03);}
.tab.is-active{color:var(--primary);}
.tab.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,240,168,.6);
}
.tab-panel{display:none;}
.tab-panel.is-active{display:block;animation:fadeIn 200ms ease-out;}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:none;}}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}

/* ---------- news list ---------- */
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.news-item{
  display:grid;grid-template-columns:120px minmax(0,1fr);
  gap:16px;padding:14px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--card-line);
  color:inherit;text-decoration:none;
  transition:border-color var(--ease),transform var(--ease),background var(--ease);
}
.news-item:hover{border-color:rgba(47,240,168,.22);transform:translateY(-2px);background:var(--card-hover);text-decoration:none;}
.news-thumb{
  width:120px;height:82px;border-radius:10px;overflow:hidden;
  background:linear-gradient(140deg,#1B2320,#101614);
  position:relative;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-thumb .initial{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:26px;font-weight:800;color:rgba(47,240,168,.55);
}
.news-body{min-width:0;display:flex;flex-direction:column;gap:6px;}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-body h3{
  font-size:16.5px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:13.5px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-arrow{align-self:center;color:var(--text-3);transition:color var(--ease),transform var(--ease);}
.news-item:hover .news-arrow{color:var(--primary);transform:translateX(3px);}

.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:52px 24px;text-align:center;
  background:var(--bg-block);border:1px dashed rgba(47,240,168,.22);border-radius:var(--r-card);
}
.empty-icon{
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--primary);font-size:22px;
}
.empty-state p{color:var(--text-2);font-size:14.5px;}

/* ---------- steps ---------- */
.steps-wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.step{
  padding:24px;border-radius:var(--r-card);
  background:var(--bg-block);border:1px solid var(--card-line);
  transition:border-color var(--ease),background var(--ease);
}
.step:hover{border-color:rgba(47,240,168,.22);background:var(--card);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;margin-bottom:14px;
  background:var(--primary-soft);border:1px solid rgba(47,240,168,.32);
  color:var(--primary);font-weight:800;font-size:15px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.45;}
.step p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ---------- stat band ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--card-line);
  border:1px solid var(--card-line);border-radius:var(--r-card);overflow:hidden;
}
.stat-cell{background:var(--bg-block);padding:24px 22px;}
.stat-cell .n{display:block;font-size:28px;font-weight:800;color:var(--primary);letter-spacing:-.5px;line-height:1.25;}
.stat-cell .l{display:block;font-size:13px;color:var(--text-3);margin-top:4px;}
.stat-cell .d{display:block;font-size:13.5px;color:var(--text-2);line-height:1.7;margin-top:10px;}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--card-line);}
.faq-item{border-bottom:1px solid var(--card-line);background:var(--bg-block);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.5;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  transition:transform 180ms ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 220ms ease-out,opacity 160ms ease-out;
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 4px 20px;color:var(--text-2);font-size:14.5px;line-height:1.85;max-width:900px;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(47,240,168,.2);border-radius:20px;
  background:
    linear-gradient(120deg,rgba(13,18,17,.96),rgba(13,18,17,.82)),
    repeating-linear-gradient(90deg,rgba(47,240,168,.09) 0 1px,transparent 1px 42px),
    repeating-linear-gradient(0deg,rgba(47,240,168,.07) 0 1px,transparent 1px 42px),
    url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  background-color:#0D1211;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:44px 40px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:10px;}
.cta-inner p{color:var(--text-2);font-size:15px;line-height:1.8;max-width:560px;}

/* ---------- footer ---------- */
.site-footer{
  background:#060908;
  border-top:1px solid var(--card-line);
  position:relative;
}
.site-footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(47,240,168,.2) 45%,transparent 88%);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  padding:56px 0 40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;max-width:340px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text);
  letter-spacing:.5px;margin-bottom:14px;
}
.footer-col li+li{margin-top:10px;}
.footer-col a{color:var(--text-2);font-size:14px;transition:color var(--ease);}
.footer-col a:hover{color:var(--primary);text-decoration:none;}
.footer-bottom{
  border-top:1px solid var(--card-line);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-3);font-size:13px;
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid var(--card-line);color:var(--text-2);font-size:13px;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(47,240,168,.35);background:rgba(47,240,168,.06);text-decoration:none;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:90;
  background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity 200ms ease-out,visibility 200ms;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:100;
  width:min(320px,86vw);
  background:#0A0E0D;border-left:1px solid var(--line);
  padding:20px;
  transform:translateX(100%);
  transition:transform 240ms ease-out;
  display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-link{
  display:block;padding:14px 8px;
  border-bottom:1px solid var(--card-line);
  color:var(--text-2);font-size:16px;font-weight:600;
}
.drawer-link:hover{color:var(--primary);text-decoration:none;}
.drawer-link.is-active{color:var(--primary);}
.drawer .btn{margin-top:18px;width:100%;}

/* ---------- skeleton ---------- */
.skeleton{
  background:linear-gradient(90deg,#141A18 0%,#1B2320 50%,#141A18 100%);
  background-size:200% 100%;
  animation:breathe 1.6s ease-in-out infinite;
}
@keyframes breathe{0%{background-position:0% 0;}100%{background-position:-200% 0;}}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-inner{padding-top:80px;}
  .rail .card{flex-basis:266px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-inner{height:58px;gap:14px;}
  .brand-text{font-size:15px;}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:24px;padding:72px 24px 32px;}
  .scoreboard{align-self:flex-start;}
  .spotlight{grid-template-columns:1fr;}
  .spot-main{min-height:320px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps-wrap{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px;}
  .rail-btn{display:none;}
  .rail{padding-left:0;padding-right:0;}
  .section{padding:56px 0;}
  .cta-inner{padding:34px 26px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container,.nav-inner{padding-left:16px;padding-right:16px;}
  .hero-inner{padding-left:16px;padding-right:16px;}
  .hero{min-height:52vh;}
  .hero h1{font-size:clamp(26px,7.4vw,34px);}
  .hero-actions .btn{flex:1 1 100%;}
  .scoreboard{width:100%;flex-wrap:wrap;}
  .score-item{flex:1 1 33.33%;min-width:0;padding:12px 14px;}
  .score-num{font-size:20px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .news-list{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
  .spot-small{grid-template-columns:104px minmax(0,1fr);}
  .rail .card{flex-basis:min(84vw,300px);}
  .rail{scroll-padding-left:0;}
  .stat-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-inner{padding:28px 20px;}
  .cta-inner .btn{width:100%;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
}
@media (max-width:519px){
  .news-item{grid-template-columns:96px minmax(0,1fr);gap:12px;padding:12px;}
  .news-thumb{width:96px;height:72px;}
  .card-title{font-size:17px;}
  .spot-overlay{padding:20px;}
}

/* roulang page: category1 */
:root{
  --bg:#080B0A;
  --bg-soft:#0D1211;
  --card:#141A18;
  --raise:#1B2320;
  --line:rgba(47,240,168,.14);
  --stroke:rgba(255,255,255,.07);
  --ink:#EEF5F1;
  --ink-2:#9EADA6;
  --ink-3:#6D7B75;
  --neon:#2FF0A8;
  --orange:#FF6B33;
  --magenta:#FF3D8B;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 20px 44px rgba(0,0,0,.55);
  --gap:20px;
  --sec:72px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--neon);text-decoration:none;transition:color .18s ease-out}
a:hover{color:#6dffc6;text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
strong{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-title{
  position:relative;padding-left:14px;
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:18px;
  background:var(--neon);border-radius:2px;box-shadow:0 0 12px rgba(47,240,168,.6);
}
.section-note{font-size:14px;color:var(--ink-3);margin:0;max-width:520px}
.more-link{font-size:14px;color:var(--neon);white-space:nowrap}
.more-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#0A0E0D;
  border-bottom:1px solid var(--stroke);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(47,240,168,.9),rgba(47,240,168,0) 60%);
}
.header-inner{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:26px;height:26px;border-radius:7px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--neon),#0e8f63);
  box-shadow:0 0 16px rgba(47,240,168,.45);
  transform:skewX(-8deg);
}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.2px}
.brand-text em{font-style:normal;color:var(--neon)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 14px;border-radius:8px;
  font-size:15px;color:var(--ink-2);
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.04);text-decoration:none}
.nav-link.is-active{color:var(--neon);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--neon);border-radius:2px;box-shadow:0 0 12px rgba(47,240,168,.6);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease-out,background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out;
}
.btn:hover{text-decoration:none}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--orange);color:#180A03;box-shadow:0 8px 22px rgba(255,107,51,.22)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 0 1px rgba(255,107,51,.55),0 10px 26px rgba(255,107,51,.3);color:#180A03}
.btn-ghost{background:transparent;border-color:rgba(47,240,168,.5);color:var(--neon)}
.btn-ghost:hover{background:rgba(47,240,168,.12);color:var(--neon)}
.btn-soft{background:var(--raise);border-color:var(--stroke);color:var(--ink)}
.btn-soft:hover{background:#212b27;color:var(--ink)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--neon)}
.link-arrow span{transition:transform .18s ease-out}
.link-arrow:hover span{transform:translateX(4px)}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--stroke);background:transparent;
  color:var(--ink-2);cursor:pointer;transition:color .18s,border-color .18s,background .18s;
}
.icon-btn:hover{color:var(--neon);border-color:rgba(47,240,168,.4);background:rgba(47,240,168,.08)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.menu-btn{display:none}
.search-bar{
  display:none;background:#0A0E0D;border-bottom:1px solid var(--stroke);
}
.search-bar.is-open{display:block}
.search-form{display:flex;gap:10px;padding:14px 0}
.search-form input{
  flex:1;height:44px;padding:0 14px;border-radius:10px;
  background:var(--card);border:1px solid var(--stroke);
  color:var(--ink);font-size:15px;font-family:inherit;
  transition:border-color .18s,box-shadow .18s;
}
.search-form input::placeholder{color:var(--ink-3)}
.search-form input:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(47,240,168,.12)}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:90;
  opacity:0;pointer-events:none;transition:opacity .2s ease-out;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(82vw,320px);z-index:95;
  background:#0A0E0D;border-left:1px solid var(--stroke);
  transform:translateX(100%);transition:transform .24s ease-out;
  padding:20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-title{font-size:15px;color:var(--ink-2)}
.drawer-link{
  display:block;padding:14px 4px;font-size:16px;color:var(--ink-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.drawer-link:hover{color:var(--neon);text-decoration:none}
.drawer-link.is-active{color:var(--neon);font-weight:600}
.drawer .btn{margin-top:16px;width:100%}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--bg-soft);
  border-bottom:1px solid var(--stroke);
}
.hero-media{position:absolute;top:0;right:0;bottom:0;width:64%;overflow:hidden}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.6}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#0D1211 0%,rgba(13,18,17,.9) 34%,rgba(13,18,17,.42) 72%,rgba(13,18,17,.75) 100%);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:80px;
  background:linear-gradient(180deg,rgba(13,18,17,0),#0D1211);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:44px 24px 48px;min-height:340px;display:flex;flex-direction:column;justify-content:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--neon);text-decoration:none}
.breadcrumb span.sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--ink-2)}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--neon);letter-spacing:.5px;margin-bottom:12px}
.hero-kicker::before{content:"";width:18px;height:2px;background:var(--neon);border-radius:2px;box-shadow:0 0 10px rgba(47,240,168,.7)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.18;letter-spacing:-.5px;
  margin:0 0 14px;max-width:14em;
}
.page-hero h1 em{font-style:normal;color:var(--neon)}
.hero-sub{font-size:16px;line-height:1.8;color:var(--ink-2);max-width:34em;margin:0}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap;margin-top:26px}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:22px;font-weight:700;color:var(--neon);line-height:1.3}
.hero-stats span{font-size:12.5px;color:var(--ink-3);letter-spacing:.3px}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.prose h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;margin:0 0 16px;position:relative;padding-left:14px}
.prose h2::before{content:"";position:absolute;left:0;top:.34em;width:4px;height:16px;background:var(--neon);border-radius:2px;box-shadow:0 0 10px rgba(47,240,168,.55)}
.prose p{color:var(--ink-2);font-size:16px;line-height:1.9}
.prose h3{font-size:18px;font-weight:600;margin:26px 0 10px;color:var(--ink)}
.point-card{background:var(--card);border:1px solid var(--stroke);border-radius:var(--r-card);padding:22px}
.point-card h3{font-size:16px;font-weight:600;margin:0 0 14px;color:var(--ink)}
.point-list li{display:flex;gap:10px;padding:10px 0;font-size:14.5px;line-height:1.75;color:var(--ink-2);border-bottom:1px dashed rgba(255,255,255,.06)}
.point-list li:last-child{border-bottom:0;padding-bottom:0}
.point-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--neon);box-shadow:0 0 8px rgba(47,240,168,.7)}
.intro-figure{margin-top:24px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke);position:relative;aspect-ratio:16/7;background:var(--raise)}
.intro-figure img{width:100%;height:100%;object-fit:cover;opacity:.92}
.intro-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:var(--ink-2);
  background:linear-gradient(180deg,rgba(8,11,10,0),rgba(8,11,10,.88));
}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--stroke);border-radius:var(--r-card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.card:hover{transform:translateY(-2px);border-color:rgba(47,240,168,.22);box-shadow:var(--shadow)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--raise)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-tag{
  position:absolute;right:10px;bottom:10px;
  padding:3px 10px;border-radius:var(--r-pill);
  background:rgba(8,11,10,.78);border:1px solid rgba(255,255,255,.12);
  font-size:12px;color:var(--ink-2);letter-spacing:.4px;font-variant-numeric:tabular-nums;
  backdrop-filter:blur(4px);
}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{
  font-size:18px;font-weight:600;line-height:1.45;margin:0;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;line-height:1.75;color:var(--ink-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--ink-3);
}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.4px;line-height:1;
}
.badge-ghost{background:transparent;border:1px solid rgba(47,240,168,.4);color:var(--neon)}
.badge-live{background:var(--orange);color:#180A03;font-weight:600}
.badge-line{background:rgba(255,255,255,.04);border:1px solid var(--stroke);color:var(--ink-2)}
.card-meta .link-arrow{font-size:13px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.step{
  position:relative;padding:24px 22px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--stroke);
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.step:hover{border-color:rgba(47,240,168,.22);transform:translateY(-2px)}
.step-num{
  display:inline-block;font-size:12.5px;letter-spacing:.6px;color:var(--neon);
  font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.step h3{font-size:17px;font-weight:600;margin:0 0 8px;line-height:1.45}
.step p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--stroke);background:var(--bg-soft)}
.faq-item:first-of-type{border-top:1px solid var(--stroke)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 6px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--neon)}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid rgba(47,240,168,.35)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--neon);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out;
}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 6px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);animation:fadeIn .16s ease-out}
@keyframes fadeIn{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}

/* ---------- next ---------- */
.next-band{
  background:
    linear-gradient(rgba(8,11,10,.92),rgba(8,11,10,.92)),
    repeating-linear-gradient(90deg,rgba(47,240,168,.09) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(0deg,rgba(47,240,168,.09) 0 1px,transparent 1px 64px),
    #0D1211;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.next-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.next-card{
  display:flex;flex-direction:column;gap:14px;justify-content:space-between;
  padding:26px;border-radius:16px;
  background:linear-gradient(135deg,#141A18,#0D1211);
  border:1px solid var(--stroke);
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.next-card:hover{border-color:rgba(47,240,168,.28);transform:translateY(-2px);box-shadow:var(--shadow);text-decoration:none}
.next-card h3{font-size:20px;font-weight:700;margin:0;color:var(--ink);line-height:1.45}
.next-card p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2)}
.next-card .link-arrow{font-size:14px}

/* ---------- footer ---------- */
.site-footer{
  position:relative;background:#070A09;
  border-top:1px solid var(--stroke);padding:56px 0 24px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,rgba(47,240,168,.85),rgba(47,240,168,.05) 70%);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--ink-3);margin:0;max-width:30em}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin:0 0 14px;letter-spacing:.3px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--ink-3)}
.footer-col ul li a:hover{color:var(--neon);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--stroke);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.to-top{font-size:13px;color:var(--ink-2)}
.to-top:hover{color:var(--neon);text-decoration:none}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .intro-grid{grid-template-columns:1fr;gap:24px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .hero-media{width:78%}
}
@media (max-width:767px){
  :root{--sec:48px}
  .container{padding:0 16px}
  .header-inner{height:56px;gap:14px}
  .brand-text{font-size:15.5px}
  .hero-inner{min-height:300px;padding:30px 16px 36px}
  .hero-media{width:100%;opacity:.5}
  .hero-media::after{background:linear-gradient(180deg,rgba(13,18,17,.94),rgba(13,18,17,.7))}
  .hero-stats{gap:24px}
  .hero-stats strong{font-size:19px}
  .steps{grid-template-columns:1fr}
  .next-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head{margin-bottom:20px}
}
@media (max-width:520px){
  .card-body{padding:16px 16px 18px}
  .card-title{font-size:17px}
  .hero-sub{font-size:15px}
  .next-card{padding:20px}
}

/* roulang page: article */
:root{
  --bg:#080B0A;
  --bg-2:#0D1211;
  --card:#141A18;
  --card-2:#1B2320;
  --line:rgba(47,240,168,.14);
  --stroke:rgba(255,255,255,.07);
  --primary:#2FF0A8;
  --accent:#FF6B33;
  --magenta:#FF3D8B;
  --text:#EEF5F1;
  --reading:#DCE8E2;
  --text-2:#9EADA6;
  --text-3:#6D7B75;
  --radius:14px;
  --radius-sm:10px;
  --pill:999px;
  --shadow:0 20px 44px rgba(0,0,0,.55);
  --container:1240px;
  --gutter:24px;
  --section:72px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto 0;
  height:340px;
  background:radial-gradient(60% 100% at 18% 0%,rgba(47,240,168,.07),transparent 72%);
  pointer-events:none;
  z-index:0;
}
img{display:block;max-width:100%;background:var(--card)}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(47,240,168,.28);color:#fff}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,14,13,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--stroke);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(47,240,168,.28) 32%,transparent 72%);
  pointer-events:none;
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  border-radius:8px;
}
.brand-mark{
  width:27px;
  height:27px;
  flex:0 0 auto;
  border-radius:4px;
  background:
    repeating-linear-gradient(90deg,transparent 0 4px,rgba(0,0,0,.26) 4px 5px),
    linear-gradient(135deg,var(--primary),#0FBF84 72%);
  clip-path:polygon(0 0,100% 0,100% 66%,66% 100%,0 100%);
  box-shadow:0 0 18px rgba(47,240,168,.45);
}
.brand-text{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.3px;
  color:var(--text);
  white-space:nowrap;
}
.brand-text em{
  font-style:normal;
  color:var(--primary);
  margin-left:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:8px 14px;
  border-radius:8px;
  color:var(--text-2);
  font-size:15px;
  font-weight:600;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{
  color:var(--text);
  background:rgba(255,255,255,.04);
}
.nav-link.is-active{
  color:var(--primary);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(47,240,168,.6);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border:1px solid transparent;
  border-radius:10px;
  font-size:15px;
  font-weight:700;
  line-height:1;
  white-space:nowrap;
  transition:transform .15s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{
  background:var(--accent);
  border-color:var(--accent);
  color:#190A03;
}
.btn-primary:hover{
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(255,107,51,.38),0 8px 24px rgba(255,107,51,.18);
}
.btn-primary:active{transform:scale(.98)}
.btn-secondary{
  background:transparent;
  border-color:rgba(47,240,168,.6);
  color:var(--primary);
}
.btn-secondary:hover{
  background:rgba(47,240,168,.12);
  border-color:var(--primary);
}
.btn-ghost{
  min-height:44px;
  padding:0 6px;
  background:transparent;
  color:var(--primary);
  border-color:transparent;
}
.btn-ghost .arrow{transition:transform .18s ease}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{
  min-height:38px;
  padding:0 16px;
  font-size:14px;
  border-radius:9px;
}
.icon-btn{
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border:1px solid var(--stroke);
  border-radius:10px;
  background:transparent;
  color:var(--text-2);
  transition:color .18s,border-color .18s,background .18s;
}
.icon-btn:hover{
  color:var(--primary);
  border-color:var(--line);
  background:var(--card);
}
.menu-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--stroke);
  border-radius:10px;
  background:transparent;
  color:var(--text);
  place-items:center;
  transition:color .18s,border-color .18s,background .18s;
}
.menu-toggle:hover{color:var(--primary);border-color:var(--line);background:var(--card)}
.menu-toggle svg{width:19px;height:19px}

/* Drawer */
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;
  z-index:70;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(84vw,340px);
  background:#0A0E0D;
  border-left:1px solid var(--stroke);
  padding:18px;
  z-index:80;
  display:flex;
  flex-direction:column;
  transform:translateX(100%);
  transition:transform .26s ease;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:16px;
  border-bottom:1px solid var(--stroke);
}
.drawer-head .brand-text{font-size:18px}
.drawer-close{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border:1px solid var(--stroke);
  border-radius:10px;
  background:transparent;
  color:var(--text-2);
}
.drawer-close:hover{color:var(--primary);border-color:var(--line)}
.drawer-nav{
  display:flex;
  flex-direction:column;
  margin-top:18px;
}
.drawer-nav a{
  padding:14px 12px;
  border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--text-2);
  font-size:16px;
  font-weight:600;
  border-radius:8px;
  transition:color .18s,background .18s;
}
.drawer-nav a:hover{color:var(--text);background:var(--card)}
.drawer-nav a.is-active{color:var(--primary)}
.drawer-cta{margin-top:24px;width:100%}

/* Article hero */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:38px 0 34px;
  background:var(--bg-2);
  border-bottom:1px solid var(--stroke);
}
.article-hero-bg{
  position:absolute;
  inset:0;
  background-position:center;
  background-size:cover;
  opacity:.28;
  z-index:0;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(8,11,10,.97) 0%,rgba(8,11,10,.82) 52%,rgba(8,11,10,.42) 100%);
  z-index:1;
  pointer-events:none;
}
.article-hero .container{
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:18px;
  color:var(--text-3);
  font-size:13px;
  line-height:1.6;
}
.breadcrumb a{
  color:var(--text-2);
  transition:color .18s;
}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:rgba(158,173,166,.45)}
.breadcrumb .current{
  color:var(--text-2);
  max-width:24em;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-head{max-width:900px}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:26px;
  padding:2px 11px;
  border-radius:var(--pill);
  font-size:12px;
  font-weight:700;
  letter-spacing:.5px;
  line-height:1.5;
}
.badge-outline{
  color:var(--primary);
  border:1px solid rgba(47,240,168,.4);
  background:rgba(47,240,168,.06);
}
.badge-live{
  background:var(--accent);
  color:#1A0A03;
  border:1px solid var(--accent);
}
.article-head h1{
  margin-top:14px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.5px;
  color:var(--text);
  overflow-wrap:anywhere;
  word-break:break-word;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 18px;
  margin-top:18px;
  color:var(--text-3);
  font-size:13px;
  line-height:1.6;
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-variant-numeric:tabular-nums;
}
.meta-item strong{
  color:var(--text-2);
  font-weight:600;
}
.meta-dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:rgba(158,173,166,.5);
}

/* Article layout */
.article-section{
  padding:var(--section) 0;
  position:relative;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:40px;
  align-items:start;
}
.article-main{min-width:0}
.article-body{
  max-width:760px;
  margin:0 auto;
  color:var(--reading);
  font-size:16px;
  line-height:1.9;
  overflow-wrap:anywhere;
}
.article-body p{
  margin:0 0 1.15em;
  color:var(--reading);
}
.article-body h2{
  position:relative;
  margin:1.8em 0 .7em;
  padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  color:var(--text);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.22em;
  width:4px;
  height:18px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(47,240,168,.55);
}
.article-body h3{
  margin:1.45em 0 .55em;
  font-size:19px;
  line-height:1.45;
  font-weight:600;
  color:var(--text);
}
.article-body h4{
  margin:1.2em 0 .5em;
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  color:var(--text);
}
.article-body strong{color:var(--text);font-weight:700}
.article-body a{
  color:var(--primary);
  text-decoration:underline;
  text-decoration-color:rgba(47,240,168,.35);
  text-underline-offset:3px;
  transition:text-decoration-color .18s,color .18s;
}
.article-body a:hover{text-decoration-color:var(--primary)}
.article-body ul,
.article-body ol{
  margin:0 0 1.2em;
  padding-left:1.3em;
}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.4em 0;color:var(--reading)}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 18px;
  border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;
  background:rgba(47,240,168,.08);
  color:var(--reading);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:auto;
  max-width:100%;
  height:auto;
  margin:1.6em auto;
  border-radius:12px;
  background:var(--card);
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{
  margin-top:8px;
  color:var(--text-3);
  font-size:13px;
  line-height:1.6;
  text-align:center;
}
.article-body table{
  width:100%;
  margin:1.6em 0;
  border:1px solid var(--stroke);
  border-radius:12px;
  border-collapse:collapse;
  overflow:hidden;
  font-size:14px;
  line-height:1.65;
}
.article-body th,
.article-body td{
  padding:10px 12px;
  border-bottom:1px solid var(--stroke);
  text-align:left;
  vertical-align:top;
}
.article-body th{
  background:var(--card-2);
  color:var(--text);
  font-weight:600;
}
.article-body td{color:var(--reading)}
.article-body pre{
  margin:1.6em 0;
  padding:16px;
  border:1px solid var(--stroke);
  border-radius:12px;
  background:#0A0E0D;
  overflow-x:auto;
  font-family:var(--mono);
  font-size:14px;
  line-height:1.7;
  color:var(--reading);
}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:rgba(255,255,255,.06);
  font-family:var(--mono);
  font-size:.92em;
  color:#CFF7E6;
}
.article-body pre code{
  padding:0;
  background:transparent;
  color:inherit;
}
.article-body hr{
  margin:2em 0;
  border:0;
  border-top:1px solid var(--stroke);
}
.article-body iframe,
.article-body video{
  max-width:100%;
  border-radius:12px;
}
.article-body>*:first-child{margin-top:0}
.article-body>*:last-child{margin-bottom:0}

/* Empty state */
.empty-state{
  max-width:760px;
  margin:0 auto;
  padding:48px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--bg-2);
  text-align:center;
}
.empty-icon{
  width:52px;
  height:52px;
  margin:0 auto 16px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:50%;
  background:rgba(47,240,168,.06);
  color:var(--primary);
  font-size:22px;
  font-weight:800;
}
.empty-state p{
  margin-bottom:18px;
  color:var(--text-2);
  font-size:15px;
}

/* Sidebar */
.article-sidebar{
  position:sticky;
  top:88px;
  display:flex;
  flex-direction:column;
  gap:20px;
  min-width:0;
}
.side-card{
  padding:20px;
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:var(--card);
}
.side-card h2{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  font-size:16px;
  line-height:1.4;
  font-weight:700;
  color:var(--text);
}
.side-card h2::before{
  content:"";
  width:3px;
  height:14px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(47,240,168,.5);
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:flex;
  align-items:center;
  gap:9px;
  padding:9px 8px;
  border-radius:8px;
  color:var(--text-2);
  font-size:14px;
  line-height:1.5;
  transition:color .18s,background .18s;
}
.toc-list a:hover{color:var(--primary);background:var(--card-2)}
.toc-list .idx{
  color:var(--text-3);
  font-family:var(--mono);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.mini-list{display:flex;flex-direction:column;gap:14px}
.mini-item{
  display:grid;
  grid-template-columns:84px minmax(0,1fr);
  gap:12px;
  align-items:center;
}
.mini-thumb{
  width:84px;
  aspect-ratio:16/9;
  overflow:hidden;
  border-radius:8px;
  border:1px solid var(--stroke);
  background:var(--card-2);
}
.mini-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .2s ease;
}
.mini-item:hover .mini-thumb img{transform:scale(1.04)}
.mini-item h3{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  font-size:14px;
  line-height:1.5;
  font-weight:600;
  color:var(--text);
  transition:color .18s;
}
.mini-item:hover h3{color:var(--primary)}
.mini-item time{
  display:block;
  margin-top:5px;
  color:var(--text-3);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.side-back{
  width:100%;
  justify-content:space-between;
  border:1px solid var(--line);
  color:var(--primary);
  background:transparent;
  padding:0 16px;
}
.side-back:hover{background:rgba(47,240,168,.1)}

/* Related rail */
.related-section{
  padding:0 0 var(--section);
}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:20px;
}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:700;
  color:var(--text);
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:.2em;
  width:4px;
  height:18px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(47,240,168,.55);
}
.rail-wrap{
  position:relative;
  padding:0 12px;
  margin:0 -12px;
}
.related-rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:4px 0 10px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.related-rail::-webkit-scrollbar{display:none}
.related-card{
  flex:0 0 400px;
  scroll-snap-align:start;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  background:var(--card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.related-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,240,168,.22);
  box-shadow:var(--shadow);
}
.related-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--card-2);
}
.related-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .22s ease-out;
}
.related-card:hover .related-thumb img{transform:scale(1.03)}
.related-body{padding:16px 18px 18px}
.related-body h3{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  color:var(--text);
}
.related-body p{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-top:8px;
  color:var(--text-2);
  font-size:13px;
  line-height:1.75;
}
.related-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:14px;
  padding-top:12px;
  border-top:1px solid var(--stroke);
  color:var(--text-3);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.related-meta .go{color:var(--primary)}
.rail-btn{
  position:absolute;
  top:38%;
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:50%;
  background:#0D1211;
  color:var(--text);
  z-index:3;
  transition:color .18s,border-color .18s,background .18s;
}
.rail-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--card-2)}
.rail-btn.prev{left:-10px}
.rail-btn.next{right:-10px}
.related-more{
  display:flex;
  justify-content:center;
  margin-top:22px;
}

/* FAQ */
.faq-section{padding:0 0 var(--section)}
.faq-list{
  max-width:860px;
  border-top:1px solid var(--stroke);
}
.faq-item{border-bottom:1px solid var(--stroke)}
.faq-question{
  position:relative;
  width:100%;
  padding:20px 46px 20px 0;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  text-align:left;
  transition:color .18s;
}
.faq-question:hover{color:var(--primary)}
.faq-icon{
  position:absolute;
  right:6px;
  top:50%;
  width:26px;
  height:26px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:50%;
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transform:translateY(-50%);
  transition:transform .2s ease;
}
.faq-item.is-open .faq-icon{transform:translateY(-50%) rotate(45deg)}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-panel p{
  padding:0 46px 20px 0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}

/* CTA */
.article-cta{padding:0 0 var(--section)}
.cta-panel{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:40px;
  border:1px solid var(--line);
  border-radius:20px;
  background:#0B100F;
}
.cta-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(47,240,168,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,240,168,.055) 1px,transparent 1px);
  background-size:28px 28px;
  mask-image:linear-gradient(90deg,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.85),transparent 78%);
  pointer-events:none;
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-160px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,51,.16),transparent 68%);
  pointer-events:none;
}
.cta-content{
  position:relative;
  z-index:2;
  max-width:660px;
}
.cta-content h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  color:var(--text);
}
.cta-content p{
  margin-top:10px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}
.cta-actions{
  position:relative;
  z-index:2;
  flex-shrink:0;
}

/* Footer */
.site-footer{
  position:relative;
  padding:56px 0 0;
  background:#070A09;
  border-top:1px solid var(--stroke);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,240,168,.75) 50%,transparent);
  pointer-events:none;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{
  max-width:340px;
  color:var(--text-2);
  font-size:14px;
  line-height:1.85;
}
.footer-col h4{
  margin-bottom:14px;
  color:var(--text);
  font-size:14px;
  font-weight:700;
  letter-spacing:.5px;
}
.footer-col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-col a{
  color:var(--text-2);
  font-size:14px;
  line-height:1.7;
  transition:color .18s;
}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding:18px 0;
  border-top:1px solid var(--stroke);
  color:var(--text-3);
  font-size:13px;
}
.to-top{
  color:var(--text-2);
  transition:color .18s;
}
.to-top:hover{color:var(--primary)}

/* Responsive */
@media (max-width:1023px){
  .nav-links{display:none}
  .header-actions .btn,
  .header-actions .icon-btn{display:none}
  .menu-toggle{display:grid}
  .header-inner{height:56px}
  .brand-text{font-size:18px}
  .brand-mark{width:24px;height:24px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-sidebar{
    position:static;
    order:2;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    align-items:start;
  }
  .side-back{grid-column:1/-1}
  .rail-btn{display:none}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  :root{--gutter:16px;--section:48px}
  .article-hero{padding:28px 0 26px}
  .article-meta{gap:7px 14px;font-size:12px}
  .article-body{font-size:16px;line-height:1.9}
  .article-sidebar{grid-template-columns:minmax(0,1fr)}
  .related-card{flex-basis:82vw}
  .rail-wrap{padding:0;margin:0}
  .cta-panel{
    flex-direction:column;
    align-items:flex-start;
    padding:28px;
  }
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1/-1}
  .faq-question{font-size:16px;padding-right:42px}
  .faq-panel p{padding-right:8px}
  .related-head{align-items:flex-start;flex-direction:column}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .breadcrumb .current{max-width:16em}
  .article-head h1{font-size:27px}
  .mini-item{grid-template-columns:76px minmax(0,1fr)}
  .mini-thumb{width:76px}
  .btn{min-height:44px}
  .article-body th,
  .article-body td{padding:9px 10px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}
}

/* roulang page: category2 */
:root{
  --bg:#080B0A;
  --surface:#0D1211;
  --card:#141A18;
  --raise:#1B2320;
  --line:rgba(47,240,168,.14);
  --stroke:rgba(255,255,255,.07);
  --primary:#2FF0A8;
  --accent:#FF6B33;
  --magenta:#FF3D8B;
  --text:#EEF5F1;
  --muted:#9EADA6;
  --dim:#6D7B75;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow:0 20px 44px rgba(0,0,0,.55);
  --container:1240px;
  --gap:20px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(760px 420px at 12% -8%,rgba(47,240,168,.10),transparent 62%),
    radial-gradient(620px 380px at 92% 4%,rgba(255,107,51,.07),transparent 64%);
  pointer-events:none;
  z-index:0;
}
img{display:block;max-width:100%}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease}
a:hover{text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
h1{font-size:clamp(30px,4vw,48px);font-weight:800;line-height:1.18;letter-spacing:-.5px}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
h3{font-size:18px;line-height:1.45}
p{color:var(--muted)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#0A0E0D;
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(47,240,168,.18) 55%,transparent);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:26px;height:26px;border-radius:7px;
  background:linear-gradient(135deg,#2FF0A8,#12A873);
  clip-path:polygon(24% 0,100% 0,76% 100%,0 100%);
  box-shadow:0 0 18px rgba(47,240,168,.45);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary);margin-left:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:8px;
  font-size:15px;color:var(--muted);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(47,240,168,.07);text-decoration:none}
.nav-link.is-active{color:var(--primary);background:rgba(47,240,168,.09)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(47,240,168,.75);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--stroke);color:var(--muted);
  background:rgba(255,255,255,.02);transition:.18s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(47,240,168,.42);background:rgba(47,240,168,.08)}
.icon-btn:active{transform:scale(.96)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.menu-btn{display:none}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;min-height:44px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  text-decoration:none;white-space:nowrap;
  transition:transform .16s ease,box-shadow .18s ease,background .18s ease,color .18s ease,filter .18s ease;
}
.btn:hover{text-decoration:none}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:#0A0E0D;box-shadow:0 10px 24px rgba(255,107,51,.24)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 0 1px rgba(255,107,51,.55),0 12px 28px rgba(255,107,51,.3)}
.btn-outline{border-color:rgba(47,240,168,.45);color:var(--primary);background:transparent}
.btn-outline:hover{background:rgba(47,240,168,.12);border-color:rgba(47,240,168,.7)}
.btn-sm{padding:9px 16px;min-height:38px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px;padding:4px 0;background:none}
.btn-text .arw{transition:transform .18s ease}
.btn-text:hover{text-decoration:none}
.btn-text:hover .arw{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* drawer */
.mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;z-index:80;
  background:#0A0E0D;border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .26s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--stroke);margin-bottom:10px}
.drawer-title{font-size:15px;font-weight:700;color:var(--text)}
.drawer-link{
  display:block;padding:13px 6px;border-bottom:1px solid rgba(255,255,255,.045);
  color:var(--muted);font-size:15px;
}
.drawer-link:hover{color:var(--text);text-decoration:none}
.drawer-link.is-active{color:var(--primary);font-weight:700}
.drawer-cta{margin-top:18px}

/* ---------- page head ---------- */
.page-head{
  position:relative;overflow:hidden;
  padding:34px 0 8px;
  border-bottom:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(13,18,17,.55),rgba(8,11,10,1));
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') right center/cover no-repeat;
  opacity:.16;
  -webkit-mask-image:linear-gradient(90deg,transparent 8%,#000 58%);
  mask-image:linear-gradient(90deg,transparent 8%,#000 58%);
  pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:20px}
.breadcrumb a{color:var(--dim)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.18)}
.breadcrumb .cur{color:var(--muted)}
.head-grid{
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:40px;align-items:start;padding-bottom:44px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.4px;
}
.badge-line{border:1px solid rgba(47,240,168,.42);color:var(--primary);background:rgba(47,240,168,.06)}
.badge-live{background:var(--accent);color:#0A0E0D;box-shadow:0 0 16px rgba(255,107,51,.35)}
.badge-dim{color:var(--dim);border:1px solid var(--stroke);background:rgba(255,255,255,.02)}
.head-main .badge{margin-bottom:18px}
.head-main h1{margin-bottom:16px}
.head-lead{font-size:16px;line-height:1.9;color:var(--muted);max-width:56ch}
.head-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.stat{
  min-width:126px;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.025);border:1px solid var(--stroke);
}
.stat strong{
  display:block;font-size:24px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat span{display:block;font-size:12.5px;color:var(--dim);margin-top:4px}

.filter-panel{
  background:var(--card);border:1px solid var(--stroke);border-radius:16px;
  padding:22px;box-shadow:var(--shadow);
}
.filter-panel h2{
  font-size:17px;font-weight:700;margin-bottom:16px;padding-left:12px;position:relative;color:var(--text);
}
.filter-panel h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:16px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(47,240,168,.7);
}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  padding:9px 16px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--stroke);color:var(--muted);background:transparent;
  transition:.18s ease;
}
.chip:hover{color:var(--text);border-color:rgba(47,240,168,.4)}
.chip.is-active{background:var(--primary);color:#062018;border-color:transparent;font-weight:700;box-shadow:0 0 18px rgba(47,240,168,.32)}
.field{display:block;margin-top:20px}
.field span{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.field input{
  width:100%;padding:12px 14px;border-radius:10px;
  background:#141A18;border:1px solid var(--stroke);
  color:var(--text);font-size:14px;font-family:inherit;
  transition:.18s ease;
}
.field input::placeholder{color:var(--dim)}
.field input:focus{
  outline:none;border-color:rgba(47,240,168,.7);
  box-shadow:0 0 0 3px rgba(47,240,168,.12);
}
.filter-hint{font-size:13px;color:var(--dim);margin-top:14px}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-tight{padding:52px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:14px}
.sec-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:18px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(47,240,168,.7);
}
.sec-sub{font-size:14.5px;color:var(--dim);margin-top:10px;padding-left:14px;max-width:62ch}

.focus-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:24px;align-items:start}

/* feature list */
.feature-list{display:flex;flex-direction:column;gap:16px}
.row-card{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:16px;
  padding:14px;border-radius:var(--radius-card);
  background:var(--card);border:1px solid var(--stroke);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.row-card:hover{transform:translateY(-2px);border-color:rgba(47,240,168,.22);box-shadow:0 14px 32px rgba(0,0,0,.45)}
.row-thumb{
  position:relative;aspect-ratio:16/10;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,#14201B,#0D1211);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.row-card:hover .row-thumb img{transform:scale(1.04)}
.row-thumb .tag{
  position:absolute;right:8px;bottom:8px;
  padding:3px 9px;border-radius:999px;font-size:11.5px;font-weight:600;
  background:rgba(8,11,10,.82);color:var(--primary);border:1px solid rgba(47,240,168,.35);
  font-variant-numeric:tabular-nums;
}
.row-body{display:flex;flex-direction:column;gap:6px;min-width:0}
.row-body h3{font-size:17px;font-weight:700;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-body p{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.row-foot{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:8px}
.meta{font-size:12.5px;color:var(--dim);font-variant-numeric:tabular-nums}

/* mini cards */
.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.data-card{
  display:flex;flex-direction:column;gap:10px;
  padding:20px;border-radius:var(--radius-card);
  background:var(--card);border:1px solid var(--stroke);
  position:relative;overflow:hidden;
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
}
.data-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,240,168,.16),transparent 68%);
  opacity:0;transition:opacity .22s ease;
}
.data-card:hover{transform:translateY(-2px);border-color:rgba(47,240,168,.24);background:var(--raise)}
.data-card:hover::after{opacity:1}
.data-card h3{font-size:16.5px;font-weight:700;position:relative;z-index:1}
.data-card p{font-size:13.5px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.data-card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px;position:relative;z-index:1}
.data-card.is-hidden{display:none}

.empty-state{
  margin-top:18px;padding:42px 24px;text-align:center;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--radius-card);
  background:rgba(255,255,255,.015);
}
.empty-state .empty-ico{
  width:46px;height:46px;margin:0 auto 14px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(47,240,168,.3);color:var(--primary);font-size:20px;font-weight:800;
}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.is-hidden{display:none !important}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.step{
  padding:24px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--stroke);
  transition:border-color .18s ease,transform .18s ease;
}
.step:hover{border-color:rgba(47,240,168,.22);transform:translateY(-2px)}
.step-num{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;color:var(--primary);
  background:rgba(47,240,168,.08);border:1px solid rgba(47,240,168,.3);
  margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.step h3{margin-bottom:8px;font-size:17px}
.step p{font-size:14px;line-height:1.8}

.note-band{
  margin-top:24px;padding:20px 22px;border-radius:12px;
  background:rgba(47,240,168,.06);border-left:3px solid var(--primary);
  font-size:14.5px;line-height:1.85;color:var(--muted);
}
.note-band strong{color:var(--text)}

/* faq */
.faq{background:var(--surface);border-top:1px solid var(--stroke);border-bottom:1px solid var(--stroke)}
.faq-list{border-top:1px solid rgba(255,255,255,.07)}
.faq-item{border-bottom:1px solid rgba(255,255,255,.07)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q .sign{
  flex-shrink:0;width:28px;height:28px;border-radius:8px;
  border:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--muted);transition:transform .22s ease,color .18s ease,border-color .18s ease;
}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);color:var(--primary);border-color:rgba(47,240,168,.45)}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .28s ease,opacity .2s ease,padding .24s ease;
  padding:0 4px;
}
.faq-item.is-open .faq-a{max-height:320px;opacity:1;padding:0 4px 20px}
.faq-a p{font-size:14.8px;line-height:1.9;color:var(--muted);max-width:76ch}

/* cta band */
.cta-wrap{padding:58px 0 66px}
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:40px 44px;border-radius:20px;
  background:linear-gradient(120deg,#0D1211 0%,#101A16 100%);
  border:1px solid var(--stroke);
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(47,240,168,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,240,168,.07) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(circle at 82% 45%,#000,transparent 72%);
  mask-image:radial-gradient(circle at 82% 45%,#000,transparent 72%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px}
.cta-band p{font-size:14.5px;color:var(--muted);max-width:52ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-footer{
  background:#0A0E0D;position:relative;padding-top:8px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),rgba(47,240,168,.15),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;
  padding:52px 0 40px;
}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--dim);margin-top:14px;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.3px}
.footer-col li{margin-bottom:11px}
.footer-col a{color:var(--dim);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--dim);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;font-size:13px;
  border:1px solid var(--stroke);color:var(--muted);
}
.to-top:hover{color:var(--primary);border-color:rgba(47,240,168,.45);text-decoration:none;background:rgba(47,240,168,.08)}

/* responsive */
@media (max-width:1180px){
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .header-inner{height:60px}
  .head-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .focus-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:52px 0}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .brand-text{font-size:15.5px}
  .nav-actions .btn-sm{display:none}
  .head-stats{gap:10px}
  .stat{min-width:calc(50% - 5px);flex:1;padding:12px 14px}
  .stat strong{font-size:20px}
  .row-card{grid-template-columns:112px minmax(0,1fr);gap:14px;padding:12px}
  .row-body h3{font-size:15.5px}
  .row-body p{font-size:13.5px;-webkit-line-clamp:2}
  .mini-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{padding:26px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .page-head{padding-top:24px}
}
@media (max-width:520px){
  h1{font-size:27px}
  .sec-title{font-size:21px}
  .filter-panel{padding:18px}
  .chip{padding:8px 13px;font-size:13px}
  .faq-q{font-size:15px;padding:17px 2px}
  .footer-bottom{font-size:12.5px}
}