/* roulang page: index */
:root{
  --c-bg:#070B18;
  --c-bg-elev:#0D1426;
  --c-glass:rgba(16,26,48,.62);
  --c-line:rgba(120,170,255,.18);
  --c-line-strong:rgba(120,170,255,.42);
  --c-brand:#2E7BFF;
  --c-brand-2:#18E0C8;
  --c-accent:#FF8A3D;
  --c-text:#E8EFFA;
  --c-text-2:#A9B8CF;
  --c-text-3:#6E7E99;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-soft:0 8px 28px rgba(0,0,0,.32);
  --shadow-hi:0 18px 52px rgba(0,0,0,.55);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
html body{
  margin:0;
  padding:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(920px 540px at 10% -10%, rgba(46,123,255,.24), transparent 62%),
    radial-gradient(780px 480px at 92% 2%, rgba(24,224,200,.13), transparent 60%);
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;line-height:1.28;}
.num{font-variant-numeric:tabular-nums;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
main{position:relative;z-index:1;display:block;}
section{position:relative;}
::selection{background:rgba(24,224,200,.32);color:#fff;}

/* ============ 倒计时条 ============ */
.countdown-bar{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(90deg,rgba(255,138,61,.18),rgba(7,11,24,.94) 46%,rgba(7,11,24,.94));
  border-bottom:1px solid rgba(255,138,61,.3);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.countdown-inner{display:flex;align-items:center;gap:20px;min-height:48px;height:48px;}
.cd-label{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--c-text-2);white-space:nowrap;}
.cd-label b{color:var(--c-text);font-weight:600;}
.cd-dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 10px var(--c-accent);animation:cdPulse 1.8s ease-in-out infinite;flex:0 0 auto;}
@keyframes cdPulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.cd-timer{display:flex;align-items:center;gap:5px;margin-left:auto;}
.cd-num{
  min-width:38px;height:30px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;background:rgba(16,26,48,.9);border:1px solid var(--c-line);
  font-size:15px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.cd-unit{font-size:12px;color:var(--c-text-3);margin-right:5px;}
.cd-sep{color:var(--c-brand-2);font-weight:700;padding:0 1px;}
.cd-btn{
  padding:7px 18px;border-radius:var(--r-pill);font-size:13px;font-weight:600;color:#04121A;
  background:linear-gradient(135deg,var(--c-accent),#FFB27A);
  box-shadow:0 0 16px rgba(255,138,61,.32);transition:transform .2s ease,box-shadow .2s ease;white-space:nowrap;
}
.cd-btn:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(255,138,61,.55);}
.cd-btn:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:2px;}

/* ============ 导航 ============ */
.site-header{
  position:relative;z-index:60;
  background:rgba(7,11,24,.84);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.header-inner{display:flex;align-items:center;gap:28px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 0 22px rgba(24,224,200,.42);
}
.brand-mark::after{
  content:"";position:absolute;inset:10px;border:2px solid rgba(7,11,24,.88);border-radius:3px;transform:rotate(45deg);
}
.brand-text strong{display:block;font-size:18px;font-weight:700;line-height:1.2;letter-spacing:0;}
.brand-text small{display:block;font-size:12px;color:var(--c-text-3);letter-spacing:.1em;margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 16px;border-radius:10px;font-size:15px;color:var(--c-text-2);
  transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--c-text);background:rgba(46,123,255,.12);}
.nav-link:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:2px;}
.nav-link.active{color:var(--c-text);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 0 10px rgba(24,224,200,.85);
}
.nav-more{position:relative;}
.more-btn .caret{font-size:11px;color:var(--c-brand-2);transition:transform .22s ease;}
.nav-more:hover .caret,.nav-more:focus-within .caret{transform:rotate(180deg);}
.mega-wrap{
  position:absolute;top:100%;right:0;padding-top:14px;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.nav-more:hover .mega-wrap,.nav-more:focus-within .mega-wrap{opacity:1;visibility:visible;transform:translateY(0);}
.mega{
  width:760px;display:grid;grid-template-columns:1fr 1.15fr 220px;gap:24px;padding:24px;
  border-radius:20px;background:rgba(13,20,38,.97);border:1px solid var(--c-line);
  box-shadow:0 26px 64px rgba(0,0,0,.62);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.mega h4{font-size:12.5px;font-weight:600;color:var(--c-text-3);letter-spacing:.14em;margin-bottom:12px;}
.mega-list a{display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--c-text-2);transition:.18s ease;}
.mega-list a:hover{background:rgba(46,123,255,.14);color:var(--c-text);transform:translateX(3px);}
.mega-list a span{display:block;font-size:12px;color:var(--c-text-3);margin-top:2px;}
.mega-item{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:10px;border-radius:10px;font-size:14px;color:var(--c-text-2);transition:.18s ease;
}
.mega-item:hover{background:rgba(46,123,255,.14);color:var(--c-text);}
.mega-item em{font-style:normal;font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;white-space:nowrap;}
.mega-card{
  position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--c-line);
  min-height:196px;display:flex;align-items:flex-end;
  background:linear-gradient(180deg,rgba(7,11,24,.1),rgba(7,11,24,.92));
}
.mega-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;}
.mega-card-body{position:relative;z-index:2;padding:16px;}
.mega-card-body strong{display:block;font-size:15px;margin-bottom:4px;}
.mega-card-body span{display:block;font-size:12.5px;color:var(--c-text-2);margin-bottom:12px;}
.mini-btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:#04121A;background:linear-gradient(135deg,var(--c-brand-2),#63F2DE);
  box-shadow:0 0 16px rgba(24,224,200,.35);transition:.2s ease;
}
.mini-btn:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(24,224,200,.6);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:rgba(16,26,48,.6);margin-left:auto;color:var(--c-text);
}
.nav-toggle:hover{border-color:var(--c-line-strong);background:rgba(30,48,84,.7);}
.nav-toggle:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:2px;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:92px 0 88px;background:var(--c-bg-elev);}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.34;z-index:0;
}
.hero-grid-overlay{
  position:absolute;inset:0;z-index:1;
  background-image:
    linear-gradient(rgba(46,123,255,.13) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,123,255,.13) 1px,transparent 1px);
  background-size:66px 66px;
  -webkit-mask-image:radial-gradient(ellipse at 28% 38%,#000 12%,transparent 74%);
  mask-image:radial-gradient(ellipse at 28% 38%,#000 12%,transparent 74%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(92deg,rgba(7,11,24,.95) 0%,rgba(7,11,24,.8) 46%,rgba(7,11,24,.6) 100%);
}
.hero-inner{
  position:relative;z-index:3;
  display:grid;grid-template-columns:minmax(0,1.22fr) minmax(0,.78fr);gap:56px;align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--c-brand-2);background:rgba(24,224,200,.1);
  border:1px solid rgba(24,224,200,.32);margin-bottom:22px;
}
.hero-title{
  font-size:clamp(30px,4.6vw,52px);font-weight:700;line-height:1.2;letter-spacing:-.015em;color:#fff;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,var(--c-brand-2),#7FE9FF 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:20px;font-size:clamp(16px,1.6vw,19px);color:var(--c-text-2);max-width:520px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.stat-pill{
  display:flex;align-items:baseline;gap:8px;padding:11px 18px;border-radius:var(--r-pill);
  background:rgba(16,26,48,.72);border:1px solid var(--c-line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.stat-pill strong{font-size:20px;font-weight:700;color:var(--c-brand-2);font-variant-numeric:tabular-nums;}
.stat-pill span{font-size:13px;color:var(--c-text-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease;
}
.btn-primary{
  color:#04121A;background:linear-gradient(135deg,var(--c-brand-2),#63F2DE);
  box-shadow:0 0 0 rgba(24,224,200,.35),0 10px 26px rgba(24,224,200,.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(24,224,200,.6),0 14px 34px rgba(24,224,200,.3);}
.btn-ghost{
  color:var(--c-text);background:rgba(16,26,48,.55);border-color:var(--c-line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(32,52,90,.78);border-color:var(--c-line-strong);transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:3px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none;transform:none;}

/* Hero 侧卡 */
.hero-card{
  border-radius:20px;padding:24px;background:var(--c-glass);border:1px solid var(--c-line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.hero-card h3{font-size:16px;margin-bottom:4px;}
.hero-card > p{font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.hero-card-list{display:grid;gap:10px;}
.hero-card-item{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 14px;border-radius:12px;background:rgba(7,11,24,.55);border:1px solid rgba(120,170,255,.12);
  font-size:14px;color:var(--c-text-2);transition:.2s ease;
}
.hero-card-item:hover{border-color:var(--c-line-strong);background:rgba(12,20,40,.8);transform:translateX(3px);}
.hero-card-item b{color:var(--c-text);font-weight:600;}
.hero-card-item em{font-style:normal;font-size:12.5px;color:var(--c-brand-2);font-variant-numeric:tabular-nums;}

/* ============ 卖点条 ============ */
.strip-section{padding:0 0 8px;margin-top:-38px;position:relative;z-index:4;}
.strip-grid{display:grid;grid-template-columns:5fr 2.3fr 2.3fr 2.3fr;gap:16px;}
.strip-item{
  padding:22px;border-radius:var(--r-card);background:rgba(13,20,38,.9);
  border:1px solid var(--c-line);box-shadow:var(--shadow-soft);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.strip-item:hover{transform:translateY(-4px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hi);}
.strip-icon{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:#04121A;background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  margin-bottom:14px;
}
.strip-item h3{font-size:16px;margin-bottom:8px;}
.strip-item p{font-size:13.5px;color:var(--c-text-2);line-height:1.7;}
.strip-item--wide{
  background:linear-gradient(135deg,rgba(46,123,255,.2),rgba(13,20,38,.9));
  border-color:rgba(120,170,255,.3);
}
.strip-item--wide h3{font-size:20px;}
.strip-item--wide p{font-size:14.5px;}

/* ============ 通用标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head h2{
  position:relative;padding-left:18px;font-size:clamp(22px,2.6vw,32px);font-weight:700;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--c-brand-2),var(--c-brand));
  box-shadow:0 0 12px rgba(24,224,200,.6);
}
.sec-head p{margin-top:10px;padding-left:18px;font-size:14.5px;color:var(--c-text-2);max-width:620px;}
.sec-link{
  font-size:14px;color:var(--c-brand-2);white-space:nowrap;padding-bottom:4px;
  border-bottom:1px solid rgba(24,224,200,.35);transition:.2s ease;
}
.sec-link:hover{color:#7FF3E4;border-color:#7FF3E4;}

/* ============ Bento 图墙 ============ */
.wall-section{padding:92px 0 0;}
.bento{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px;}
.bento-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--c-line);background:var(--c-glass);box-shadow:var(--shadow-card);
  min-height:206px;display:flex;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hi);}
.bento-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.6;transition:opacity .4s ease,transform .5s ease;}
.bento-card:hover img{opacity:.78;transform:scale(1.05);}
.bento-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,24,.1) 0%,rgba(7,11,24,.9) 80%);
}
.bento-body{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;width:100%;}
.bento-body .badge{margin-bottom:12px;}
.bento-body h3{font-size:18px;margin-bottom:8px;}
.bento-body p{font-size:13.5px;color:var(--c-text-2);line-height:1.7;}
.bento-a{grid-column:span 4;grid-row:span 2;min-height:430px;}
.bento-a .bento-body h3{font-size:24px;}
.bento-a .bento-body p{font-size:14.5px;max-width:520px;}
.bento-b,.bento-c{grid-column:span 2;grid-row:span 1;}
.bento-d,.bento-e,.bento-f{grid-column:span 2;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;padding:4px 11px;border-radius:8px;
  font-size:12px;font-weight:600;color:var(--c-brand-2);
  background:rgba(24,224,200,.12);border:1px solid rgba(24,224,200,.3);
}
.badge--accent{color:#FFB27A;background:rgba(255,138,61,.14);border-color:rgba(255,138,61,.34);}
.badge--brand{color:#8CBCFF;background:rgba(46,123,255,.16);border-color:rgba(46,123,255,.36);}

/* ============ CTA 表单 ============ */
.cta-section{padding:92px 0 0;}
.cta-panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;padding:46px;
  border-radius:24px;border:1px solid var(--c-line);
  background:linear-gradient(135deg,rgba(46,123,255,.18),rgba(13,20,38,.9) 52%,rgba(24,224,200,.1));
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:16px;}
.cta-copy p{font-size:14.5px;color:var(--c-text-2);margin-bottom:12px;max-width:460px;}
.cta-points{display:grid;gap:10px;margin-top:22px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2);}
.cta-points li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;border-radius:2px;margin-top:9px;
  background:var(--c-brand-2);box-shadow:0 0 8px rgba(24,224,200,.8);
}
.cta-form{display:grid;gap:14px;align-content:start;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;color:var(--c-text-2);}
.field input,.field select{
  width:100%;padding:13px 15px;border-radius:var(--r-btn);
  background:rgba(7,11,24,.62);border:1px solid var(--c-line);color:var(--c-text);
  font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder{color:var(--c-text-3);}
.field select option{background:#0D1426;color:var(--c-text);}
.field input:focus,.field select:focus{
  border-color:var(--c-brand-2);background:rgba(7,11,24,.85);
  box-shadow:0 0 0 3px rgba(24,224,200,.16);
}
.field.has-error input,.field.has-error select{border-color:#FF6B5E;box-shadow:0 0 0 3px rgba(255,107,94,.14);}
.form-tip{font-size:12.5px;color:var(--c-text-3);line-height:1.7;}
.form-tip.is-ok{color:var(--c-brand-2);}

/* ============ 最新动态 ============ */
.news-section{padding:92px 0 0;}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.news-card{
  display:flex;gap:18px;padding:16px;border-radius:var(--r-card);
  background:var(--c-glass);border:1px solid var(--c-line);box-shadow:var(--shadow-soft);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hi);}
.news-thumb{
  flex:0 0 134px;height:104px;border-radius:var(--r-img);overflow:hidden;
  background:var(--c-bg-elev);border:1px solid rgba(120,170,255,.12);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.06);}
.news-body{min-width:0;flex:1 1 auto;display:flex;flex-direction:column;gap:8px;}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--c-brand-2);}
.news-excerpt{
  font-size:13.5px;color:var(--c-text-2);line-height:1.68;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}
.news-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand-2);font-weight:600;transition:gap .2s ease;}
.news-more:hover{gap:10px;}
.news-more i{font-style:normal;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border-radius:var(--r-card);border:1px dashed var(--c-line-strong);background:rgba(13,20,38,.5);
  text-align:center;padding:32px;
}
.empty-icon{
  width:52px;height:52px;border-radius:14px;border:1.5px solid var(--c-line-strong);
  display:flex;align-items:center;justify-content:center;color:var(--c-brand-2);font-size:22px;
}
.empty-state p{font-size:14.5px;color:var(--c-text-2);}

/* ============ FAQ ============ */
.faq-section{padding:92px 0 0;}
.faq-list{display:grid;gap:12px;max-width:940px;}
.faq-item{
  border-radius:var(--r-img);border:1px solid var(--c-line);background:rgba(13,20,38,.62);
  overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--c-line-strong);}
.faq-item[open]{border-color:rgba(24,224,200,.42);background:rgba(9,15,30,.92);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;font-size:16px;font-weight:600;line-height:1.5;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;line-height:1;color:var(--c-brand-2);transition:transform .22s ease;
}
.faq-item[open] summary{color:var(--c-brand-2);}
.faq-item[open] summary::after{content:"−";}
.faq-body{position:relative;padding:0 26px 20px 28px;font-size:14.5px;color:var(--c-text-2);line-height:1.85;}
.faq-body::before{
  content:"";position:absolute;left:13px;top:3px;bottom:22px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-brand-2),rgba(24,224,200,0));
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:2;margin-top:96px;
  background:rgba(9,14,28,.94);border-top:1px solid var(--c-line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--c-brand),var(--c-brand-2) 42%,transparent 88%);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.2fr;gap:44px;padding:58px 0 42px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--c-text-2);max-width:360px;line-height:1.8;}
.footer-col h4{font-size:13px;font-weight:600;color:var(--c-text-3);letter-spacing:.14em;margin-bottom:16px;}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--c-text-2);padding:6px 0;transition:.2s ease;}
.footer-col a:hover{color:var(--c-brand-2);transform:translateX(3px);}
.footer-bottom{border-top:1px solid rgba(120,170,255,.12);}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:13px;color:var(--c-text-3);flex-wrap:wrap;
}
.back-top{color:var(--c-text-2);transition:.2s ease;}
.back-top:hover{color:var(--c-brand-2);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .bento{grid-template-columns:repeat(6,minmax(0,1fr));}
}
@media (max-width:1023px){
  .header-inner{flex-wrap:wrap;height:auto;padding:14px 0;gap:14px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;gap:4px;
    padding:10px 0 16px;border-top:1px solid var(--c-line);
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:12px 14px;}
  .nav-link.active::after{left:14px;right:auto;width:26px;}
  .mega-wrap{position:static;opacity:1;visibility:visible;transform:none;padding-top:6px;width:100%;}
  .mega{width:100%;grid-template-columns:1fr;gap:18px;}
  .hero{padding:64px 0 72px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .strip-section{margin-top:-28px;}
  .strip-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .strip-item--wide{grid-column:span 2;}
  .bento{grid-template-columns:repeat(2,minmax(0,1fr));}
  .bento-a{grid-column:span 2;grid-row:auto;min-height:320px;}
  .bento-b,.bento-c,.bento-d,.bento-e,.bento-f{grid-column:span 1;min-height:210px;}
  .wall-section,.cta-section,.news-section,.faq-section{padding-top:64px;}
  .cta-panel{grid-template-columns:1fr;gap:30px;padding:30px;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px;}
  .footer-brand{grid-column:span 2;}
  .site-footer{margin-top:64px;}
}
@media (max-width:767px){
  .countdown-inner{flex-wrap:wrap;height:auto;min-height:48px;padding-top:8px;padding-bottom:8px;gap:10px;}
  .cd-timer{margin-left:0;order:3;width:100%;}
  .cd-btn{margin-left:auto;}
  .hero-stats{gap:10px;}
  .stat-pill{padding:9px 14px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .bento-a .bento-body h3{font-size:20px;}
}
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .brand-text small{display:none;}
  .hero{padding:48px 0 56px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .strip-grid{grid-template-columns:1fr;}
  .strip-item--wide{grid-column:span 1;}
  .bento{grid-template-columns:1fr;}
  .bento-a,.bento-b,.bento-c,.bento-d,.bento-e,.bento-f{grid-column:span 1;min-height:230px;}
  .news-card{flex-direction:column;}
  .news-thumb{flex:1 1 auto;width:100%;height:168px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand{grid-column:span 1;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-panel{padding:22px;}
  .sec-head h2{font-size:22px;}
}

/* roulang page: article */
:root{
  --c-bg:#070B18;
  --c-bg-elev:#0D1426;
  --c-glass:rgba(16,26,48,.62);
  --c-line:rgba(120,170,255,.18);
  --c-line-strong:rgba(120,170,255,.36);
  --c-brand:#2E7BFF;
  --c-brand-2:#18E0C8;
  --c-accent:#FF8A3D;
  --c-text:#E8EFFA;
  --c-text-2:#A9B8CF;
  --c-text-3:#6E7E99;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 rgba(24,224,200,.35);
  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 560px at 10% -12%,rgba(46,123,255,.20),transparent 62%),
    radial-gradient(900px 520px at 94% 2%,rgba(24,224,200,.13),transparent 64%),
    var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--c-text);}
p{margin:0;}
ul,ol{margin:0;padding:0;}
::selection{background:rgba(24,224,200,.3);color:#fff;}
:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:2px;border-radius:6px;}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px;}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,24,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:26px;min-height:74px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;position:relative;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 0 20px rgba(24,224,200,.42);
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:rgba(7,11,24,.88);transform:rotate(45deg);
}
.brand-text strong{display:block;font-size:17px;font-weight:700;letter-spacing:-.01em;line-height:1.2;}
.brand-text small{display:block;font-size:11.5px;color:var(--c-text-3);letter-spacing:.14em;margin-top:3px;}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2);
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--c-text);background:rgba(46,123,255,.14);}
.nav-link.active{color:var(--c-text);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-brand-2);box-shadow:0 0 10px rgba(24,224,200,.85);
}
.nav-more{position:relative;}
.more-btn .caret{font-size:11px;color:var(--c-brand-2);transition:transform .22s ease;}
.nav-more:hover .caret,.nav-more:focus-within .caret{transform:translateY(2px);}
.mega-wrap{
  position:absolute;top:calc(100% + 12px);right:0;
  opacity:0;visibility:hidden;transform:translateY(6px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-more:hover .mega-wrap,.nav-more:focus-within .mega-wrap{
  opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;
}
.mega{
  display:grid;grid-template-columns:1.12fr 1.18fr .95fr;gap:22px;
  width:min(880px,90vw);padding:24px;border-radius:18px;
  background:rgba(13,20,38,.97);
  border:1px solid var(--c-line-strong);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.mega-col h4{font-size:13px;letter-spacing:.16em;color:var(--c-text-3);font-weight:600;margin-bottom:14px;}
.mega-list{display:flex;flex-direction:column;gap:4px;}
.mega-list a{
  display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--c-text-2);
  border-left:2px solid transparent;transition:.2s;
}
.mega-list a span{display:block;color:var(--c-text);font-size:14px;line-height:1.5;}
.mega-list a em{display:block;font-style:normal;font-size:12px;color:var(--c-text-3);margin-top:3px;}
.mega-list a:hover{background:rgba(46,123,255,.14);border-left-color:var(--c-brand-2);color:var(--c-text);}
.mega-item span{font-size:13.5px;}
.mega-card{
  border-radius:14px;overflow:hidden;background:var(--c-glass);
  border:1px solid var(--c-line);display:flex;flex-direction:column;
}
.mega-card img{width:100%;height:118px;object-fit:cover;border-radius:0;}
.mega-card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;}
.mega-card-body strong{font-size:15px;}
.mega-card-body span{font-size:12.5px;color:var(--c-text-3);line-height:1.6;}
.mini-btn{
  margin-top:6px;align-self:flex-start;padding:7px 16px;border-radius:999px;
  font-size:13px;color:#04121A;font-weight:600;
  background:linear-gradient(120deg,var(--c-brand-2),#4FF0DA);
  box-shadow:0 6px 20px rgba(24,224,200,.25);
}
.mini-btn:hover{transform:translateY(-1px);box-shadow:0 8px 26px rgba(24,224,200,.45);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--c-line);
  color:var(--c-text-2);align-items:center;justify-content:center;margin-left:auto;}
.nav-toggle:hover{color:var(--c-text);border-color:var(--c-line-strong);}

/* ============ Article ============ */
.article-main{padding:34px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13px;color:var(--c-text-3);tabular-nums;
}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-brand-2);}
.crumb .sep{width:1px;height:11px;background:rgba(120,170,255,.32);display:inline-block;}
.crumb .cur{color:var(--c-text-3);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{max-width:900px;margin-top:24px;position:relative;}
.article-head::before{
  content:"";position:absolute;left:-32px;top:8px;width:3px;height:54px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-brand-2),rgba(46,123,255,0));
}
.badge-pill{
  display:inline-flex;align-items:center;gap:7px;padding:5px 13px;border-radius:8px;
  font-size:12.5px;letter-spacing:.04em;color:#BDF6ED;
  background:rgba(24,224,200,.12);border:1px solid rgba(24,224,200,.34);
}
.badge-pill::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-brand-2);box-shadow:0 0 8px rgba(24,224,200,.9);}
.article-title{
  margin:18px 0 0;
  font-size:clamp(26px,3.7vw,40px);
  line-height:1.3;font-weight:700;letter-spacing:-.015em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;
  margin-top:18px;font-size:13px;color:var(--c-text-3);tabular-nums;
}
.meta-row .m-item{display:inline-flex;align-items:center;gap:7px;}
.meta-row .m-item i{width:5px;height:5px;border-radius:50%;background:var(--c-brand);display:inline-block;}
.rule-line{
  margin-top:26px;height:1px;width:100%;
  background:linear-gradient(90deg,rgba(24,224,200,.65),rgba(46,123,255,.28),rgba(120,170,255,0));
}
.article-cover{
  max-width:900px;margin:30px 0 0;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow-card);
}
.article-cover img{width:100%;height:clamp(180px,30vw,320px);object-fit:cover;border-radius:0;}

.article-body{
  max-width:820px;margin:44px auto 0;
  font-size:16px;line-height:1.9;color:#D6E1F2;
  word-break:break-word;overflow-wrap:break-word;
}
.article-body p{margin:0 0 22px;}
.article-body h2{
  position:relative;margin:42px 0 18px;padding-left:16px;
  font-size:clamp(20px,2.3vw,26px);line-height:1.42;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-brand-2),var(--c-brand));
  box-shadow:0 0 12px rgba(24,224,200,.6);
}
.article-body h3{margin:30px 0 14px;font-size:19px;line-height:1.5;color:var(--c-text);}
.article-body h4{margin:24px 0 12px;font-size:16.5px;color:var(--c-text-2);}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px;}
.article-body ul li{list-style:none;position:relative;margin:0 0 10px;}
.article-body ul li::before{
  content:"";position:absolute;left:-18px;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--c-brand-2);box-shadow:0 0 8px rgba(24,224,200,.55);
}
.article-body ol li{margin:0 0 10px;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:14px;
  background:var(--c-glass);border:1px solid var(--c-line);border-left:3px solid var(--c-accent);
  color:var(--c-text-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  margin:26px auto;border-radius:var(--r-img);
  border:1px solid var(--c-line);box-shadow:0 12px 36px rgba(0,0,0,.5);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:12px;color:var(--c-text-3);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-brand-2);border-bottom:1px dashed rgba(24,224,200,.5);}
.article-body a:hover{color:#7CF3E2;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px;
  display:block;overflow-x:auto;border-radius:12px;
}
.article-body th,.article-body td{
  padding:11px 14px;border:1px solid var(--c-line);text-align:left;white-space:nowrap;
}
.article-body th{background:rgba(46,123,255,.14);color:var(--c-text);font-weight:600;}
.article-body pre{
  margin:24px 0;padding:18px 20px;border-radius:12px;overflow-x:auto;
  background:rgba(6,10,22,.9);border:1px solid var(--c-line);
  font-size:13.5px;line-height:1.7;color:#B9E9E0;
}
.article-body code{
  padding:2px 6px;border-radius:6px;font-size:13.5px;
  background:rgba(46,123,255,.16);color:#BFE2FF;
}
.article-body pre code{padding:0;background:none;color:inherit;}
.article-body hr{border:0;height:1px;background:var(--c-line);margin:34px 0;}

.article-empty{
  max-width:820px;margin:48px auto 0;min-height:260px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  padding:48px 28px;text-align:center;border-radius:var(--r-card);
  background:var(--c-glass);border:1px dashed var(--c-line-strong);
}
.article-empty svg{opacity:.75;}
.article-empty h2{font-size:20px;}
.article-empty p{color:var(--c-text-3);font-size:14.5px;}

/* ============ Article foot ============ */
.article-foot{max-width:820px;margin:56px auto 0;padding-top:30px;border-top:1px solid var(--c-line);}
.article-foot h2{
  font-size:20px;margin-bottom:20px;display:flex;align-items:center;gap:10px;
}
.article-foot h2::before{content:"";width:4px;height:18px;border-radius:3px;background:var(--c-brand-2);box-shadow:0 0 10px rgba(24,224,200,.7);}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.rec-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--c-glass);border:1px solid var(--c-line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rec-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);box-shadow:var(--shadow-card);}
.rec-card img{width:100%;height:112px;object-fit:cover;border-radius:0;}
.rec-card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rec-card-body strong{font-size:14.5px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-card-body em{font-style:normal;font-size:12px;color:var(--c-text-3);margin-top:auto;tabular-nums;}
.rec-back{margin-top:24px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:14.5px;color:var(--c-text);background:rgba(16,26,48,.7);
  border:1px solid var(--c-line-strong);transition:.24s;
}
.btn-ghost:hover{background:rgba(46,123,255,.2);border-color:var(--c-brand);transform:translateY(-2px);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;padding:11px 24px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;color:#04121A;
  background:linear-gradient(120deg,var(--c-brand-2),#49EFD8);
  box-shadow:0 0 0 rgba(24,224,200,.35);
  transition:box-shadow .26s ease,transform .26s ease;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(24,224,200,.55);}
.btn-glow:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:3px;}
.back-top-row{margin:34px 0 0;text-align:center;}
.back-top-row a{
  font-size:13px;color:var(--c-text-3);border-bottom:1px dashed rgba(110,126,153,.6);padding-bottom:2px;
}
.back-top-row a:hover{color:var(--c-brand-2);border-color:rgba(24,224,200,.7);}

/* ============ Footer ============ */
.site-footer{
  margin-top:96px;position:relative;
  background:linear-gradient(180deg,rgba(13,20,38,.6),rgba(7,11,24,.98));
  border-top:1px solid var(--c-line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(46,123,255,.85),rgba(24,224,200,.35),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;
  padding-top:56px;padding-bottom:44px;
}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--c-text-3);line-height:1.85;max-width:380px;}
.footer-col{display:flex;flex-direction:column;gap:11px;}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:var(--c-text-3);font-weight:600;margin-bottom:5px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-brand-2);}
.footer-bottom{border-top:1px solid var(--c-line);}
.footer-bottom-inner{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding-top:18px;padding-bottom:18px;font-size:13px;color:var(--c-text-3);
}
.footer-bottom-inner .back-top{color:var(--c-text-2);}
.footer-bottom-inner .back-top:hover{color:var(--c-brand-2);}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:14px 20px 22px;
    background:rgba(9,14,30,.98);
    border-bottom:1px solid var(--c-line-strong);
    box-shadow:0 20px 40px rgba(0,0,0,.5);
    display:none;
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:12px 14px;font-size:15.5px;}
  .nav-link.active::after{left:14px;right:auto;width:22px;}
  .nav-more .mega-wrap{display:none;}
  .mega{grid-template-columns:1fr;width:100%;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .header-inner{min-height:66px;gap:14px;}
  .article-main{padding-top:24px;}
  .article-head::before{display:none;}
  .article-body{font-size:15.5px;line-height:1.88;margin-top:34px;}
  .article-body p{margin-bottom:20px;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-top:44px;}
  .site-footer{margin-top:72px;}
}
@media (max-width:519px){
  .article-title{font-size:23px;}
  .crumb .cur{max-width:180px;}
  .meta-row{gap:7px 14px;font-size:12.5px;}
  .rec-back{gap:10px;}
  .btn-ghost,.btn-glow{width:100%;justify-content:center;}
}

/* roulang page: category1 */
:root{
  --c-bg:#070B18;
  --c-bg-elev:#0D1426;
  --c-glass:rgba(16,26,48,.62);
  --c-line:rgba(120,170,255,.18);
  --c-line-strong:rgba(120,170,255,.42);
  --c-brand:#2E7BFF;
  --c-brand-2:#18E0C8;
  --c-accent:#FF8A3D;
  --c-text:#E8EFFA;
  --c-text-2:#A9B8CF;
  --c-text-3:#6E7E99;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-hover:0 18px 48px rgba(0,0,0,.55);
  --gap-section:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.site-body{
  margin:0;
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  background:
    radial-gradient(900px 520px at 10% -6%, rgba(46,123,255,.20), transparent 62%),
    radial-gradient(760px 460px at 96% 3%, rgba(24,224,200,.12), transparent 64%),
    var(--c-bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:3px;border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media(max-width:640px){.wrap{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,24,.84);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;position:relative}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text);text-decoration:none;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;flex:0 0 auto;border-radius:9px;position:relative;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 0 18px rgba(24,224,200,.45);
}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:3px;background:#070B18;transform:rotate(45deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--c-text)}
.brand-text small{font-size:11px;color:var(--c-text-3);letter-spacing:.04em}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2);
  background:transparent;border:0;cursor:pointer;font-family:inherit;transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--c-text);background:rgba(46,123,255,.12)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-brand-2),var(--c-brand));
}
.caret{font-size:10px;color:var(--c-text-3);transition:transform .2s}
.nav-more{position:relative}
.nav-more:hover .caret,.nav-more:focus-within .caret{transform:rotate(180deg)}
.mega-wrap{
  position:absolute;top:100%;right:0;padding-top:14px;width:780px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-more:hover .mega-wrap,.nav-more:focus-within .mega-wrap{opacity:1;visibility:visible;transform:translateY(0)}
.mega{
  display:grid;grid-template-columns:1.05fr 1.05fr .95fr;gap:22px;
  padding:22px;border-radius:18px;
  background:var(--c-glass);backdrop-filter:blur(18px);
  border:1px solid var(--c-line);box-shadow:var(--shadow-card);
}
.mega-col h4{margin:0 0 12px;font-size:12px;letter-spacing:.14em;color:var(--c-text-3);text-transform:uppercase;font-weight:600}
.mega-list{display:flex;flex-direction:column;gap:4px}
.mega-list a{
  display:flex;flex-direction:column;gap:2px;padding:9px 10px;border-radius:10px;
  color:var(--c-text);font-size:14px;text-decoration:none;transition:background .2s,color .2s;
}
.mega-list a span{color:var(--c-text-3);font-size:12px}
.mega-list a:hover{background:rgba(46,123,255,.14)}
.mega-item{flex-direction:row !important;justify-content:space-between;align-items:center;gap:12px}
.mega-item em{font-style:normal;font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;white-space:nowrap}
.mega-card{
  border-radius:14px;overflow:hidden;border:1px solid var(--c-line);
  background:rgba(9,14,28,.7);display:flex;flex-direction:column;
}
.mega-card img{height:104px;width:100%;object-fit:cover;opacity:.9}
.mega-card-body{padding:12px 14px 16px;display:flex;flex-direction:column;gap:6px}
.mega-card-body strong{font-size:15px}
.mega-card-body span{font-size:12px;color:var(--c-text-3);line-height:1.6}
.mini-btn{
  margin-top:6px;align-self:flex-start;display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:linear-gradient(120deg,var(--c-brand-2),var(--c-brand));color:#04121F;
}
.nav-toggle{
  display:none;margin-left:auto;padding:9px;border-radius:10px;cursor:pointer;
  background:rgba(16,26,48,.6);border:1px solid var(--c-line);color:var(--c-text);
}
@media(max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:2px;padding:12px 20px 20px;
    background:rgba(9,14,28,.98);border-bottom:1px solid var(--c-line);
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 10px}
  .nav-link.active::after{left:10px;right:auto;width:34px}
  .nav-more{position:static}
  .mega-wrap{position:static;width:auto;padding-top:6px;display:none;opacity:1;visibility:visible;transform:none}
  .nav-more.open .mega-wrap{display:block}
  .mega{grid-template-columns:1fr;width:auto;padding:16px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  transition:transform .18s ease,box-shadow .26s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--c-brand-2),var(--c-brand));color:#04121F;
  box-shadow:0 0 0 rgba(24,224,200,.35),0 10px 26px rgba(24,224,200,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(24,224,200,.5),0 14px 34px rgba(46,123,255,.26)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(16,26,48,.6);color:var(--c-text);border-color:var(--c-line);backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(32,48,84,.75);border-color:var(--c-line-strong);transform:translateY(-2px)}
.btn-lg{padding:16px 34px;font-size:16px;border-radius:14px}
.btn.is-disabled,.btn[disabled]{opacity:.45;box-shadow:none;pointer-events:none}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.36;transform:scale(1.03);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(7,11,24,.72),rgba(7,11,24,.95)),
    repeating-linear-gradient(0deg,rgba(120,170,255,.055) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(90deg,rgba(120,170,255,.055) 0 1px,transparent 1px 46px);
}
.hero-inner{position:relative;z-index:2;padding-top:60px;padding-bottom:70px}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);margin-bottom:26px}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-brand-2)}
.crumb i{font-style:normal;opacity:.5}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.12em;color:var(--c-brand-2);
  background:rgba(24,224,200,.09);border:1px solid rgba(24,224,200,.32);
}
.hero h1{
  margin:20px 0 14px;font-size:clamp(30px,4.6vw,52px);line-height:1.18;
  font-weight:700;letter-spacing:-.01em;color:#fff;max-width:900px;
}
.hero-sub{margin:0;font-size:clamp(16px,1.6vw,19px);color:var(--c-text-2);max-width:680px}
.stat-row{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 32px}
.stat-pill{
  display:inline-flex;flex-direction:column;gap:2px;padding:12px 20px;border-radius:14px;
  background:rgba(16,26,48,.62);border:1px solid var(--c-line);backdrop-filter:blur(14px);
}
.stat-pill b{font-size:21px;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-pill span{font-size:12px;color:var(--c-text-3)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
@media(max-width:640px){
  .hero-inner{padding-top:40px;padding-bottom:52px}
  .stat-row{gap:10px}
  .stat-pill{padding:10px 15px}
}

/* ---------- sections ---------- */
.section{padding:var(--gap-section) 0}
@media(max-width:767px){.section{padding:52px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-title{
  position:relative;margin:0;padding-left:16px;
  font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;color:#fff;line-height:1.3;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-brand-2),var(--c-brand));
}
.section-desc{margin:10px 0 0;color:var(--c-text-2);font-size:15px;max-width:760px}
.text-link{color:var(--c-brand-2);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:#fff}

/* ---------- overview ---------- */
.overview-grid{display:grid;grid-template-columns:1.55fr 1fr 1fr 1fr;gap:18px}
.ov-card{
  padding:22px;border-radius:var(--r-card);background:var(--c-glass);
  border:1px solid var(--c-line);backdrop-filter:blur(18px);box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.ov-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hover)}
.ov-card h3{margin:0 0 8px;font-size:17px;color:#fff}
.ov-card p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.7}
.ov-icon{
  width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:14px;font-size:15px;font-weight:700;color:var(--c-brand-2);
  background:rgba(24,224,200,.1);border:1px solid rgba(24,224,200,.28);font-variant-numeric:tabular-nums;
}
.ov-card.feature{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:center;padding:22px}
.ov-card.feature img{border-radius:var(--r-img);height:100%;min-height:150px;object-fit:cover;border:1px solid var(--c-line)}
.ov-num{font-size:26px;color:#fff;font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-.02em}
@media(max-width:1023px){
  .overview-grid{grid-template-columns:1fr 1fr}
  .ov-card.feature{grid-column:span 2}
}
@media(max-width:640px){
  .overview-grid{grid-template-columns:1fr}
  .ov-card.feature{grid-column:span 1;grid-template-columns:1fr}
}

/* ---------- filter ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.filter-tab{
  padding:9px 20px;border-radius:999px;font-size:14px;cursor:pointer;font-family:inherit;
  color:var(--c-text-2);background:rgba(16,26,48,.55);border:1px solid var(--c-line);
  transition:color .2s,background .2s,border-color .2s,box-shadow .2s;
}
.filter-tab:hover{color:#fff;border-color:var(--c-line-strong)}
.filter-tab.is-active{
  color:#04121F;border-color:transparent;
  background:linear-gradient(120deg,var(--c-brand-2),var(--c-brand));
  box-shadow:0 0 18px rgba(24,224,200,.42);
}
.filter-hint{font-size:13px;color:var(--c-text-3);margin-bottom:6px}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(24,224,200,.6),rgba(46,123,255,.28),rgba(46,123,255,0));
}
.tl-item{position:relative;margin-bottom:16px}
.tl-node{
  position:absolute;left:-31px;top:30px;width:12px;height:12px;border-radius:50%;
  background:var(--c-bg);border:2px solid var(--c-brand-2);box-shadow:0 0 12px rgba(24,224,200,.6);
}
.tl-item.is-done .tl-node{border-color:var(--c-text-3);box-shadow:none}
.tl-card{
  display:grid;grid-template-columns:108px 1fr auto;gap:20px;align-items:center;
  padding:18px 22px;border-radius:var(--r-card);
  background:var(--c-glass);border:1px solid var(--c-line);backdrop-filter:blur(18px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hover)}
.date-block{
  text-align:center;padding:10px 6px;border-radius:12px;
  background:rgba(9,14,28,.72);border:1px solid var(--c-line);font-variant-numeric:tabular-nums;
}
.date-block strong{display:block;font-size:19px;color:#fff;line-height:1.25}
.date-block span{display:block;font-size:12px;color:var(--c-text-3);margin-top:2px}
.tl-main h3{margin:0 0 6px;font-size:17px;color:#fff;font-weight:600}
.tl-main p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.7}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;
  font-size:12px;font-weight:600;margin-bottom:8px;border:1px solid transparent;
}
.badge-live{color:var(--c-brand-2);background:rgba(24,224,200,.09);border-color:rgba(24,224,200,.38)}
.badge-soon{color:var(--c-accent);background:rgba(255,138,61,.09);border-color:rgba(255,138,61,.38)}
.badge-done{color:var(--c-text-3);background:rgba(120,170,255,.06);border-color:var(--c-line)}
.card-arrow{
  width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);color:var(--c-brand-2);font-size:16px;transition:background .2s,transform .2s,border-color .2s;
}
.tl-card:hover .card-arrow{background:rgba(24,224,200,.14);border-color:rgba(24,224,200,.5);transform:translateX(3px)}
@media(max-width:767px){
  .timeline{padding-left:24px}
  .timeline::before{left:5px}
  .tl-node{left:-25px;top:26px}
  .tl-card{grid-template-columns:1fr;gap:14px;padding:16px}
  .date-block{display:flex;align-items:baseline;gap:8px;justify-content:flex-start;padding:8px 12px;width:max-content}
  .date-block strong{font-size:16px}
  .date-block span{margin-top:0}
  .card-arrow{display:none}
}

/* ---------- past ---------- */
.past-panel{
  margin-top:34px;padding:30px;border-radius:20px;text-align:center;
  background:linear-gradient(135deg,rgba(46,123,255,.14),rgba(24,224,200,.08)),var(--c-glass);
  border:1px solid var(--c-line);backdrop-filter:blur(18px);
}
.past-panel h3{margin:0 0 8px;font-size:19px;color:#fff}
.past-panel p{margin:0 auto 20px;font-size:14px;color:var(--c-text-2);max-width:620px}
.pager{display:flex;gap:10px;justify-content:center;margin-top:22px;flex-wrap:wrap}
.pager a{
  min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--c-line);color:var(--c-text-2);font-size:14px;
  font-variant-numeric:tabular-nums;transition:.2s;background:rgba(16,26,48,.5);
}
.pager a:hover{color:#fff;border-color:var(--c-line-strong);transform:translateY(-2px)}
.pager a.is-current{
  color:#04121F;border-color:transparent;background:linear-gradient(120deg,var(--c-brand-2),var(--c-brand));
  box-shadow:0 0 16px rgba(24,224,200,.4);
}

/* ---------- process ---------- */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  position:relative;padding:24px 20px;border-radius:var(--r-card);
  background:var(--c-glass);border:1px solid var(--c-line);backdrop-filter:blur(18px);
  transition:transform .2s,border-color .2s,box-shadow .2s;
}
.step:hover{transform:translateY(-3px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hover)}
.step-num{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-brand-2);
  font-variant-numeric:tabular-nums;display:block;margin-bottom:12px;
}
.step h3{margin:0 0 8px;font-size:17px;color:#fff}
.step p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.7}
@media(max-width:1023px){.process-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.process-grid{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px}
.faq details{
  border-radius:var(--r-card);background:var(--c-glass);border:1px solid var(--c-line);
  backdrop-filter:blur(18px);overflow:hidden;transition:border-color .2s;
}
.faq details:hover{border-color:var(--c-line-strong)}
.faq details[open]{border-color:rgba(24,224,200,.42);box-shadow:0 0 0 1px rgba(24,224,200,.18)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;font-size:16px;font-weight:600;color:#fff;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq .sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);color:var(--c-brand-2);font-size:14px;transition:transform .22s ease;
}
.faq details[open] .sign{transform:rotate(45deg);border-color:rgba(24,224,200,.45)}
.faq .faq-body{
  padding:14px 22px 20px;font-size:14.5px;color:var(--c-text-2);line-height:1.8;
  background:rgba(6,10,22,.55);border-top:1px solid var(--c-line);
}
.faq details[open] .faq-body{border-left:3px solid var(--c-brand-2)}

/* ---------- cta ---------- */
.cta-panel{
  display:grid;grid-template-columns:1.05fr 1fr;gap:38px;align-items:center;
  padding:38px;border-radius:22px;
  background:linear-gradient(135deg,rgba(46,123,255,.18),rgba(24,224,200,.10)),var(--c-glass);
  border:1px solid var(--c-line);backdrop-filter:blur(18px);box-shadow:var(--shadow-card);
}
.cta-panel h2{margin:0 0 14px;font-size:clamp(22px,2.4vw,30px);color:#fff;line-height:1.3}
.cta-panel p{margin:0 0 10px;font-size:15px;color:var(--c-text-2);line-height:1.8}
.cta-list{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.cta-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2)}
.cta-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
  background:var(--c-brand-2);box-shadow:0 0 8px rgba(24,224,200,.6);
}
.form-card{
  padding:24px;border-radius:18px;background:rgba(9,14,28,.72);
  border:1px solid var(--c-line);backdrop-filter:blur(14px);
}
.field{margin-bottom:16px;display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--c-text-2)}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:12px;font-size:15px;font-family:inherit;
  background:rgba(6,10,22,.85);border:1px solid var(--c-line);color:var(--c-text);
  outline:none;transition:border-color .2s,box-shadow .2s;
}
.field input::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus{border-color:var(--c-brand-2);box-shadow:0 0 0 3px rgba(24,224,200,.16)}
.form-note{margin:12px 0 0;font-size:12px;color:var(--c-text-3);line-height:1.6}
.form-submit{width:100%;margin-top:6px}
@media(max-width:900px){
  .cta-panel{grid-template-columns:1fr;padding:26px;gap:26px}
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:20px;
  background:linear-gradient(180deg,rgba(13,20,38,.9),rgba(7,11,24,.98));
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--c-brand),rgba(24,224,200,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.2fr;gap:34px;padding:54px 0 40px}
.footer-brand p{margin:16px 0 0;font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:420px}
.footer-col h4{margin:0 0 16px;font-size:13px;letter-spacing:.14em;color:var(--c-text-3);font-weight:600}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:var(--c-brand-2)}
.footer-bottom{border-top:1px solid var(--c-line)}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-size:13px;color:var(--c-text-3);flex-wrap:wrap}
.back-top{color:var(--c-text-2);font-size:13px;display:inline-flex;align-items:center;gap:6px}
.back-top:hover{color:var(--c-brand-2)}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:26px}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;padding:40px 0 30px}}

/* roulang page: category2 */
:root{
  --c-bg:#070B18;
  --c-bg-elev:#0D1426;
  --c-glass:rgba(16,26,48,.62);
  --c-line:rgba(120,170,255,.18);
  --c-line-strong:rgba(120,170,255,.42);
  --c-brand:#2E7BFF;
  --c-brand-2:#18E0C8;
  --c-accent:#FF8A3D;
  --c-text:#E8EFFA;
  --c-text-2:#A9B8CF;
  --c-text-3:#6E7E99;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --wrap:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--c-bg);
  background-image:
    radial-gradient(900px 520px at 10% -10%,rgba(46,123,255,.20),transparent 62%),
    radial-gradient(760px 460px at 92% 2%,rgba(24,224,200,.13),transparent 60%);
  background-attachment:fixed;
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select{font:inherit;color:inherit;}
button{background:none;border:none;}
h1,h2,h3,h4,h5,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(24,224,200,.35);color:#fff;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,24,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--c-line);
}
.header-inner{position:relative;display:flex;align-items:center;gap:28px;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:28px;height:28px;flex:none;border-radius:8px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-2));
  box-shadow:0 0 20px rgba(24,224,200,.5);
  transform:rotate(45deg);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;background:rgba(7,11,24,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--c-text);}
.brand-text small{font-size:11px;color:var(--c-text-3);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2);
  transition:color .2s,background .2s;cursor:pointer;
}
.nav-link:hover{color:var(--c-text);background:rgba(46,123,255,.12);}
.nav-link.active{color:#fff;}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--c-brand-2);
  box-shadow:0 0 10px rgba(24,224,200,.7);
}
.caret{font-size:11px;color:var(--c-text-3);}
.nav-more{position:relative;}
.mega-wrap{
  position:absolute;top:100%;right:0;padding-top:14px;width:760px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-more:hover .mega-wrap,
.nav-more:focus-within .mega-wrap{opacity:1;visibility:visible;transform:translateY(0);}
.mega{
  display:grid;grid-template-columns:1.15fr 1.15fr 1fr;gap:20px;
  padding:22px;border-radius:18px;
  background:rgba(13,20,38,.97);
  border:1px solid var(--c-line);
  box-shadow:0 24px 60px rgba(0,0,0,.55);
}
.mega-col h4{font-size:12px;letter-spacing:.14em;color:var(--c-text-3);margin-bottom:12px;font-weight:600;}
.mega-list a{display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--c-text-2);transition:background .2s,color .2s;}
.mega-list a:hover{background:rgba(46,123,255,.14);color:#fff;}
.mega-list a span{display:block;font-size:12px;color:var(--c-text-3);margin-top:2px;}
.mega-item{display:flex;justify-content:space-between;gap:12px;align-items:baseline;}
.mega-item em{font-style:normal;font-size:12px;color:var(--c-text-3);white-space:nowrap;}
.mega-card{border:1px solid var(--c-line);border-radius:14px;overflow:hidden;background:rgba(7,11,24,.6);}
.mega-card img{width:100%;height:104px;object-fit:cover;opacity:.9;}
.mega-card-body{padding:14px;display:flex;flex-direction:column;gap:8px;}
.mega-card-body strong{font-size:15px;}
.mega-card-body span{font-size:12px;color:var(--c-text-3);line-height:1.6;}
.mini-btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:linear-gradient(120deg,var(--c-brand-2),#0fb9c9);color:#04211f;
  transition:box-shadow .2s,transform .2s;
}
.mini-btn:hover{transform:translateY(-1px);box-shadow:0 0 20px rgba(24,224,200,.45);}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);color:var(--c-text-2);
  align-items:center;justify-content:center;cursor:pointer;
  background:rgba(16,26,48,.6);
}
.nav-toggle:hover{color:#fff;border-color:var(--c-line-strong);}

/* ============ hero ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.36;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,11,24,.70),rgba(7,11,24,.96) 82%),
    repeating-linear-gradient(90deg,rgba(120,170,255,.07) 0 1px,transparent 1px 68px);
}
.hero-inner{position:relative;z-index:2;padding:56px 0 62px;max-width:900px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);margin-bottom:22px;}
.crumb a:hover{color:var(--c-brand-2);}
.crumb .sep{opacity:.45;}
.crumb .current{color:var(--c-text-2);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--c-brand-2);background:rgba(24,224,200,.12);
  border:1px solid rgba(24,224,200,.35);margin-bottom:18px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-brand-2);box-shadow:0 0 10px rgba(24,224,200,.9);}
h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:700;line-height:1.22;letter-spacing:-.01em;
  margin-bottom:18px;
}
h1 .hl{color:var(--c-brand-2);}
.hero-sub{font-size:16px;color:var(--c-text-2);max-width:640px;line-height:1.85;}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.stat-chip{
  display:flex;align-items:baseline;gap:8px;
  padding:12px 18px;border-radius:14px;
  background:var(--c-glass);border:1px solid var(--c-line);
  backdrop-filter:blur(18px);
}
.stat-chip b{font-size:20px;font-weight:700;color:var(--c-brand-2);font-variant-numeric:tabular-nums;}
.stat-chip span{font-size:13px;color:var(--c-text-3);}

/* ============ filter bar ============ */
.filter-bar{padding:22px 0 0;}
.filter-scroll{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:999px;font-size:14px;
  border:1px solid var(--c-line);background:rgba(16,26,48,.55);
  color:var(--c-text-2);cursor:pointer;
  transition:color .2s,border-color .2s,background .2s,box-shadow .2s;
}
.chip:hover{color:#fff;border-color:var(--c-line-strong);background:rgba(30,46,80,.6);}
.chip.is-active{
  color:#04211f;font-weight:600;border-color:transparent;
  background:linear-gradient(120deg,var(--c-brand-2),#0fb9c9);
  box-shadow:0 0 18px rgba(24,224,200,.4);
}

/* ============ section ============ */
.section{padding:88px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.sec-title{
  position:relative;padding-left:18px;
  font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--c-brand-2),var(--c-brand));
  box-shadow:0 0 14px rgba(24,224,200,.5);
}
.sec-desc{margin-top:10px;font-size:14px;color:var(--c-text-3);padding-left:18px;}
.text-link{font-size:14px;color:var(--c-brand-2);border-bottom:1px solid rgba(24,224,200,.35);padding-bottom:2px;transition:.2s;}
.text-link:hover{color:#fff;border-color:#fff;}

/* ============ two column ============ */
.layout-2col{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:var(--gap);align-items:start;}

/* media cards */
.media-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);}
.card{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.media-card{display:grid;grid-template-columns:40% minmax(0,1fr);overflow:hidden;}
.media-card:hover{transform:translateY(-3px);border-color:var(--c-line-strong);box-shadow:0 18px 46px rgba(0,0,0,.55);}
.media-figure{position:relative;overflow:hidden;margin:0;}
.media-figure img{width:100%;height:100%;min-height:180px;object-fit:cover;transition:transform .4s ease;}
.media-card:hover .media-figure img{transform:scale(1.05);}
.media-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,11,24,.05),rgba(7,11,24,.45));
}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:8px;
  font-size:11px;font-weight:600;letter-spacing:.04em;
  color:var(--c-brand-2);background:rgba(24,224,200,.13);
  border:1px solid rgba(24,224,200,.3);
}
.tag.tag-blue{color:#9CC3FF;background:rgba(46,123,255,.16);border-color:rgba(46,123,255,.35);}
.tag.tag-orange{color:var(--c-accent);background:rgba(255,138,61,.14);border-color:rgba(255,138,61,.34);}
.media-body{padding:18px 20px;display:flex;flex-direction:column;gap:10px;}
.media-body h3{font-size:17px;font-weight:700;line-height:1.45;transition:color .2s;}
.media-card:hover .media-body h3{color:var(--c-brand-2);}
.media-body p{font-size:13.5px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta-row{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--c-text-3);margin-top:auto;}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3);}
.arrow{margin-left:auto;color:var(--c-brand-2);font-size:13px;transition:transform .2s;}
.media-card:hover .arrow{transform:translateX(4px);}

/* sidebar */
.side-stack{display:flex;flex-direction:column;gap:var(--gap);}
.side-card{padding:22px;}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:5px;height:5px;border-radius:2px;background:var(--c-brand-2);box-shadow:0 0 10px rgba(24,224,200,.8);}
.side-sub{font-size:12px;color:var(--c-text-3);margin-bottom:14px;}
.rank-list li{border-bottom:1px dashed rgba(120,170,255,.14);}
.rank-list li:last-child{border-bottom:none;}
.rank-list a{display:flex;gap:12px;align-items:flex-start;padding:12px 6px;border-radius:10px;transition:background .2s,transform .2s;}
.rank-list a:hover{background:rgba(46,123,255,.12);transform:translateX(3px);}
.rank-no{
  flex:none;width:26px;font-size:15px;font-weight:700;
  color:var(--c-brand-2);font-variant-numeric:tabular-nums;line-height:1.6;
}
.rank-list li:nth-child(-n+3) .rank-no{color:var(--c-accent);}
.rank-text{min-width:0;}
.rank-text strong{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--c-text);}
.rank-text span{display:block;font-size:12px;color:var(--c-text-3);margin-top:3px;}
.quick-links{display:flex;flex-direction:column;gap:10px;}
.quick-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:12px;font-size:14px;color:var(--c-text-2);
  border:1px solid var(--c-line);background:rgba(7,11,24,.5);
  transition:border-color .2s,color .2s,background .2s;
}
.quick-links a:hover{color:#fff;border-color:rgba(24,224,200,.5);background:rgba(24,224,200,.09);}
.quick-links a em{font-style:normal;color:var(--c-brand-2);font-size:13px;}

/* compact list */
.compact-list{display:grid;gap:4px;}
.compact-list a{
  position:relative;display:flex;align-items:center;gap:18px;
  padding:14px 18px;border-radius:12px;
  border-bottom:1px solid rgba(120,170,255,.1);
  transition:background .2s;
}
.compact-list a::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:22px;border-radius:3px;background:var(--c-brand-2);
  transform:translateY(-50%) scaleY(0);transition:transform .2s ease;
}
.compact-list a:hover{background:rgba(46,123,255,.1);}
.compact-list a:hover::before{transform:translateY(-50%) scaleY(1);}
.compact-title{flex:1;min-width:0;font-size:15px;color:var(--c-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.compact-list a:hover .compact-title{color:#fff;}
.compact-cat{flex:none;font-size:12px;color:var(--c-text-3);}
.compact-time{flex:none;width:96px;text-align:right;font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;}

/* path bento */
.path-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px;}
.path-card{padding:26px;display:flex;flex-direction:column;gap:10px;}
.path-card.span-5{grid-column:span 5;}
.path-card.span-7{grid-column:span 7;}
.path-no{
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-brand-2);
  font-variant-numeric:tabular-nums;
}
.path-card h3{font-size:18px;font-weight:700;}
.path-card p{font-size:14px;color:var(--c-text-2);line-height:1.8;}
.path-card.span-7{background:linear-gradient(120deg,rgba(46,123,255,.16),transparent 65%),var(--c-glass);}

/* faq */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:border-color .25s;
}
.faq-item[open]{border-color:rgba(24,224,200,.45);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:17px 22px;font-size:16px;font-weight:600;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--c-brand-2);transform:scaleY(0);transform-origin:center;transition:transform .25s;
}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item summary::after{
  content:"+";flex:none;font-size:20px;line-height:1;color:var(--c-brand-2);transition:transform .25s;
}
.faq-item[open] summary::after{content:"−";}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--c-text-2);line-height:1.9;background:rgba(7,11,24,.45);}

/* cta */
.cta-panel{
  display:grid;grid-template-columns:1.45fr 1fr;gap:32px;align-items:center;
  padding:44px;border-radius:20px;border:1px solid var(--c-line);
  background:linear-gradient(120deg,rgba(46,123,255,.24),rgba(24,224,200,.10) 70%),var(--c-glass);
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:12px;}
.cta-panel p{font-size:15px;color:var(--c-text-2);line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}
.cta-note{font-size:12px;color:var(--c-text-3);margin-top:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--c-brand-2),#0fb9c9);color:#04211f;
  box-shadow:0 0 0 rgba(24,224,200,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 24px 4px rgba(24,224,200,.42);}
.btn-ghost{background:rgba(16,26,48,.62);border-color:var(--c-line);color:var(--c-text);}
.btn-ghost:hover{background:rgba(32,50,86,.8);border-color:var(--c-line-strong);color:#fff;}
.btn:focus-visible{outline:2px solid var(--c-brand-2);outline-offset:3px;}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.cta-side{
  padding:24px;border-radius:16px;border:1px solid var(--c-line);
  background:rgba(7,11,24,.62);
}
.cta-side h3{font-size:15px;font-weight:700;margin-bottom:12px;}
.cta-side ul{display:grid;gap:10px;}
.cta-side li{display:flex;gap:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7;}
.cta-side li::before{content:"▹";color:var(--c-brand-2);flex:none;}

/* footer */
.site-footer{
  margin-top:40px;
  border-top:1px solid transparent;
  background:
    linear-gradient(180deg,rgba(7,11,24,.6),rgba(7,11,24,.96)),
    radial-gradient(700px 320px at 80% 0%,rgba(46,123,255,.14),transparent 65%);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--c-brand),rgba(24,224,200,.6),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;
  padding:60px 32px 44px;
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--c-text-3);line-height:1.85;max-width:420px;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:var(--c-text-3);font-weight:600;margin-bottom:16px;}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:10px;transition:color .2s;}
.footer-col a:hover{color:var(--c-brand-2);}
.footer-bottom{border-top:1px solid var(--c-line);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 32px;font-size:13px;color:var(--c-text-3);flex-wrap:wrap;}
.back-top{color:var(--c-text-2);border:1px solid var(--c-line);border-radius:999px;padding:6px 14px;font-size:13px;transition:.2s;}
.back-top:hover{color:#04211f;background:linear-gradient(120deg,var(--c-brand-2),#0fb9c9);border-color:transparent;}

/* ============ responsive ============ */
@media (max-width:1024px){
  .layout-2col{grid-template-columns:1fr;}
  .path-card.span-5,.path-card.span-7{grid-column:span 12;}
  .media-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;}
}
@media (max-width:860px){
  .nav-toggle{display:flex;}
  .main-nav{
    display:none;position:absolute;top:calc(100% + 1px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    margin-left:0;padding:16px;border-radius:0 0 16px 16px;
    background:rgba(9,14,28,.98);border:1px solid var(--c-line);border-top:none;
    box-shadow:0 24px 50px rgba(0,0,0,.6);
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:12px 14px;font-size:15px;}
  .nav-link.active::after{left:14px;transform:none;bottom:8px;}
  .nav-more{width:100%;}
  .more-btn{width:100%;justify-content:space-between;}
  .mega-wrap{position:static;width:100%;opacity:1;visibility:visible;transform:none;padding-top:6px;}
  .mega{width:100%;grid-template-columns:1fr;padding:14px;}
  .media-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .wrap{padding:0 20px;}
  .footer-grid{padding:44px 20px 32px;grid-template-columns:1fr;gap:28px;}
  .footer-bottom-inner{padding:18px 20px;}
  .cta-panel{padding:26px;}
  .hero-inner{padding:36px 0 46px;}
}
@media (max-width:560px){
  .media-card{grid-template-columns:1fr;}
  .media-figure img{min-height:160px;height:170px;}
  .compact-list a{flex-wrap:wrap;gap:8px;}
  .compact-title{white-space:normal;flex:1 0 100%;}
  .compact-time{width:auto;text-align:left;margin-left:auto;}
  .hero-chips{gap:10px;}
  .stat-chip{padding:10px 14px;}
  .stat-chip b{font-size:17px;}
  .filter-scroll{overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px;}
  .chip{flex:none;}
}