/* roulang page: index */
:root{
  --bg:#0C111D;
  --bg-alt:#111827;
  --bg-card:#182135;
  --bg-input:#0B1220;
  --bg-dark:#0A0E18;
  --primary:#00E5A0;
  --primary-hover:#34F5B8;
  --secondary:#3B82F6;
  --accent:#F59E0B;
  --text:#F1F5F9;
  --text-secondary:#94A3B8;
  --text-muted:#64748B;
  --border:rgba(255,255,255,0.08);
  --border-strong:rgba(255,255,255,0.16);
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-card:0 4px 20px rgba(0,0,0,0.3);
  --shadow-glow:0 8px 30px rgba(0,229,160,0.12);
  --shadow-btn:0 4px 16px rgba(0,229,160,0.25);
  --transition:all .25s cubic-bezier(.4,0,.2,1);
  --font-din:"DIN Alternate","Bahnschrift",Impact,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block;object-fit:cover}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;transition:var(--transition)}
input{font-family:inherit;border:none;outline:none;background:transparent;color:var(--text)}
ul{list-style:none}
:focus-visible{outline:2px solid rgba(0,229,160,.5);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.main{overflow:hidden}
section{padding:clamp(56px,8vw,96px) 0;position:relative}
.section-head{margin-bottom:clamp(32px,4vw,52px);max-width:720px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,160,.12);border:1px solid rgba(0,229,160,.3);color:var(--primary);font-size:13px;font-weight:600;padding:4px 14px;border-radius:var(--radius-pill);margin-bottom:16px;letter-spacing:.04em}
.section-head h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;line-height:1.25;margin-bottom:12px}
.section-head p{color:var(--text-secondary);font-size:16px;max-width:600px}
.section-head .head-link{position:absolute;right:clamp(16px,4vw,40px);top:clamp(56px,8vw,96px);font-size:14px;font-weight:600;color:var(--primary)}
.section-head .head-link:hover{text-decoration:underline}
.section-head{position:relative}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);font-weight:700;font-size:15px;
  letter-spacing:.01em;transition:var(--transition);white-space:nowrap;border:1px solid transparent;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--primary);color:#0C111D;box-shadow:var(--shadow-btn)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 6px 24px rgba(0,229,160,.35)}
.btn-outline{background:transparent;border:1px solid rgba(255,255,255,.25);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-dark{background:#0C111D;color:var(--primary);box-shadow:0 4px 16px rgba(0,0,0,.4)}
.btn-dark:hover{background:#111827;transform:translateY(-1px)}
.btn-lg{padding:16px 36px;font-size:16px;border-radius:var(--radius-md)}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:8px 16px;font-size:14px}

.badge{
  display:inline-flex;align-items:center;gap:4px;padding:4px 10px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;line-height:1.4;
}
.badge-accent{background:rgba(245,158,11,.15);color:var(--accent);border:1px solid rgba(245,158,11,.3)}
.badge-primary{background:rgba(0,229,160,.12);color:var(--primary);border:1px solid rgba(0,229,160,.25)}
.badge-secondary{background:rgba(59,130,246,.12);color:var(--secondary);border:1px solid rgba(59,130,246,.25)}

.text-primary{color:var(--primary)}
.text-link{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.text-link:hover i{transform:translateX(4px)}
.text-link i{transition:transform .2s}

/* ===================== Header ===================== */
.header{
  position:sticky;top:0;z-index:100;background:rgba(12,17,29,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--border);
}
.header-main{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{
  width:40px;height:40px;border-radius:10px;background:var(--primary);color:#0C111D;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-din);
  font-size:22px;font-weight:800;box-shadow:0 0 16px rgba(0,229,160,.4);line-height:1;
}
.brand-text{font-size:20px;font-weight:800;color:var(--text);letter-spacing:.01em}
.brand-text em{font-style:normal;color:var(--primary);font-weight:700;margin-left:2px}
.header-search{display:flex;align-items:center;flex:1;max-width:420px;margin:0 16px}
.search-box{
  display:flex;align-items:center;width:100%;background:var(--bg-input);
  border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-pill);padding:4px 4px 4px 18px;
  transition:var(--transition);height:44px;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,229,160,.15)}
.search-box input{flex:1;font-size:14px;color:var(--text);min-width:0}
.search-box input::placeholder{color:var(--text-muted)}
.search-box button{
  width:36px;height:36px;border-radius:var(--radius-pill);background:var(--primary);color:#0C111D;
  display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;transition:var(--transition);
}
.search-box button:hover{background:var(--primary-hover)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-mobile-search{display:none}

.channel-nav{
  border-top:1px solid var(--border);padding:10px 0;position:relative;
}
.channel-tabs{display:flex;align-items:center;gap:8px;flex-wrap:nowrap}
.channel-tab{
  padding:8px 20px;border-radius:var(--radius-pill);font-size:14px;font-weight:600;
  color:var(--text);background:transparent;border:1px solid rgba(255,255,255,.15);
  transition:var(--transition);white-space:nowrap;display:inline-flex;align-items:center;gap:6px;
}
.channel-tab:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.3);color:var(--primary)}
.channel-tab.active{background:var(--primary);color:#0C111D;border-color:var(--primary);box-shadow:0 2px 12px rgba(0,229,160,.3)}
.channel-tab.active:hover{background:var(--primary-hover);color:#0C111D}

/* ===================== Hero ===================== */
.hero{
  background:linear-gradient(180deg,rgba(12,17,29,.92),rgba(12,17,29,.75)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:clamp(60px,9vw,110px) 0 clamp(48px,7vw,90px);
  position:relative;
}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 25% 20%,rgba(0,229,160,.10),transparent 60%);
}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,5vw,80px);align-items:center}
.hero-content{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,160,.1);
  border:1px solid rgba(0,229,160,.35);color:var(--primary);padding:6px 16px;
  border-radius:var(--radius-pill);font-size:13px;font-weight:600;margin-bottom:22px;letter-spacing:.04em;
}
.hero h1{
  font-size:clamp(2rem,5vw,3.4rem);font-weight:800;line-height:1.18;
  letter-spacing:-.01em;margin-bottom:18px;
}
.hero h1 .hero-brand{color:var(--text)}
.hero h1 .hero-highlight{color:var(--primary);font-weight:700}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:var(--text-secondary);max-width:480px;line-height:1.7;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;gap:clamp(20px,3vw,40px);flex-wrap:wrap}
.stat{display:flex;flex-direction:column;gap:2px}
.stat-num{
  font-family:var(--font-din);font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:800;
  color:var(--primary);line-height:1.2;letter-spacing:.02em;
}
.stat-label{font-size:13px;color:var(--text-muted)}

.hero-visual{position:relative;height:420px;z-index:2}
.hero-card{
  position:absolute;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card);
  border:1px solid rgba(255,255,255,.08);background:var(--bg-card);transition:var(--transition);
}
.hero-card img{width:100%;height:100%;object-fit:cover}
.hero-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.hero-card-tag{
  position:absolute;left:12px;bottom:12px;background:rgba(12,17,29,.82);backdrop-filter:blur(6px);
  color:var(--primary);font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--radius-pill);
  display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(0,229,160,.25);
}
.card-1{width:min(300px,62%);top:12px;right:0;z-index:3;transform:rotate(2deg);height:190px}
.card-2{width:min(250px,52%);top:185px;right:90px;z-index:2;transform:rotate(-3deg);height:150px}
.card-3{width:min(200px,42%);top:60px;right:230px;z-index:1;transform:rotate(-5deg);height:130px;filter:saturate(.9)}
@media(max-width:992px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{margin-top:20px;height:340px;max-width:560px}
  .card-1{width:260px;top:0;right:0}
  .card-2{width:220px;top:170px;right:60px}
  .card-3{width:180px;top:50px;right:200px}
}

/* ===================== VIP Plans ===================== */
.vip{background:var(--bg-alt)}
.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;align-items:stretch}
.plan-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:36px 30px;position:relative;display:flex;flex-direction:column;transition:var(--transition);
  box-shadow:var(--shadow-card);
}
.plan-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-glow);border-color:rgba(0,229,160,.3)}
.plan-card.featured{
  border:2px solid var(--primary);box-shadow:0 0 0 1px rgba(0,229,160,.2),var(--shadow-glow);
}
.plan-card.featured::before{
  content:'最受欢迎';position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--accent);color:#0C111D;font-size:12px;font-weight:700;
  padding:4px 16px;border-radius:var(--radius-pill);letter-spacing:.05em;white-space:nowrap;
  box-shadow:0 4px 12px rgba(245,158,11,.3);
}
.plan-name{font-size:18px;font-weight:700;margin-bottom:8px}
.plan-price{display:flex;align-items:baseline;gap:4px;margin-bottom:26px}
.plan-price .currency{font-size:18px;font-weight:700;color:var(--text-secondary)}
.plan-price .amount{font-family:var(--font-din);font-size:3rem;font-weight:800;color:var(--text);line-height:1.1}
.plan-price .period{font-size:13px;color:var(--text-muted);margin-left:2px}
.plan-list{display:flex;flex-direction:column;gap:14px;margin-bottom:30px;flex:1}
.plan-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-secondary);line-height:1.5}
.plan-list li::before{font-family:'Font Awesome 6 Free';font-weight:900;font-size:14px;margin-top:2px;flex-shrink:0}
.plan-list li.ok{color:var(--text)}
.plan-list li.ok::before{content:'\f00c';color:var(--primary)}
.plan-list li.no{color:var(--text-muted)}
.plan-list li.no::before{content:'\f00d';color:var(--text-muted);opacity:.5}

/* ===================== Levels ===================== */
.levels{background:var(--bg)}
.level-track{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;position:relative}
.level-track::before{
  content:'';position:absolute;top:46px;left:10%;right:10%;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:.25;
}
.level-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:34px 28px;position:relative;transition:var(--transition);
}
.level-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-glow)}
.level-card.lv1{height:320px}
.level-card.lv2{height:380px;background:linear-gradient(180deg,#182135,rgba(0,229,160,.06)),var(--bg-card)}
.level-card.lv3{height:440px;background:linear-gradient(180deg,#182135,rgba(0,229,160,.14)),var(--bg-card)}
.level-num{
  font-family:var(--font-din);font-size:4rem;font-weight:800;color:rgba(0,229,160,.35);
  line-height:1;position:absolute;top:22px;right:24px;letter-spacing:-.02em;
}
.level-card.lv3 .level-num{color:rgba(0,229,160,.55)}
.level-card h3{font-size:20px;font-weight:700;margin-bottom:18px;position:relative;z-index:1}
.level-card ul{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;position:relative;z-index:1}
.level-card ul li{font-size:14px;color:var(--text-secondary);display:flex;align-items:center;gap:8px}
.level-card ul li::before{content:'\f058';font-family:'Font Awesome 6 Free';font-weight:900;color:var(--primary);font-size:13px}
.level-progress{height:6px;background:#1E293B;border-radius:var(--radius-pill);overflow:hidden}
.level-progress span{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--primary),var(--secondary))}
.progress-33{width:33%}
.progress-66{width:66%}
.progress-100{width:100%}
@media(max-width:768px){
  .level-track{grid-template-columns:1fr;align-items:stretch;gap:20px}
  .level-track::before{display:none}
  .level-card.lv1,.level-card.lv2,.level-card.lv3{height:auto}
}

/* ===================== Features ===================== */
.features{background:var(--bg-alt)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.feature-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;transition:var(--transition);display:flex;flex-direction:column;position:relative;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-glow);border-color:rgba(0,229,160,.25)}
.feature-media{position:relative;height:170px;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-card:hover .feature-media img{transform:scale(1.04)}
.feature-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(24,33,53,.55))}
.feature-icon{
  position:absolute;left:16px;bottom:-20px;width:44px;height:44px;border-radius:12px;
  background:var(--primary);color:#0C111D;display:flex;align-items:center;justify-content:center;
  font-size:18px;z-index:2;box-shadow:0 4px 14px rgba(0,229,160,.35);
}
.feature-body{padding:30px 22px 24px;flex:1}
.feature-body h3{font-size:17px;font-weight:700;margin-bottom:10px}
.feature-body p{font-size:14px;color:var(--text-secondary);line-height:1.65}

/* ===================== Exclusive ===================== */
.exclusive{background:var(--bg)}
.exclusive-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}
.exclusive-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;transition:var(--transition);display:flex;flex-direction:column;position:relative;
}
.exclusive-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-glow);border-color:rgba(0,229,160,.25)}
.exclusive-media{position:relative;height:160px;overflow:hidden}
.exclusive-media img{width:100%;height:100%;object-fit:cover}
.exclusive-card.locked .exclusive-media img{filter:blur(3px) brightness(.65)}
.lock-icon{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:32px;color:var(--accent);background:rgba(12,17,29,.35);z-index:2;
  text-shadow:0 2px 12px rgba(0,0,0,.4);
}
.exclusive-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.exclusive-body .badge{align-self:flex-start}
.exclusive-body h3{font-size:16px;font-weight:700;color:var(--text)}
.exclusive-body p{font-size:13px;color:var(--text-secondary);line-height:1.6;flex:1}
.exclusive-link{margin-top:4px;color:var(--primary);font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:4px}
.exclusive-card.locked .exclusive-link{pointer-events:none;opacity:.4}

/* ===================== Steps ===================== */
.steps{background:var(--bg-alt)}
.steps-track{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.steps-track::before{
  content:'';position:absolute;top:44px;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,229,160,.4),transparent);
}
.step-item{text-align:center;padding:0 20px;position:relative}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:60px;height:60px;
  border-radius:50%;background:var(--primary);color:#0C111D;font-family:var(--font-din);
  font-size:22px;font-weight:800;margin-bottom:20px;position:relative;z-index:1;
  box-shadow:0 6px 20px rgba(0,229,160,.3);
}
.step-item h3{font-size:18px;font-weight:700;margin-bottom:10px}
.step-item p{font-size:14px;color:var(--text-secondary);max-width:220px;margin:0 auto;line-height:1.65}
@media(max-width:768px){
  .steps-track{grid-template-columns:1fr;gap:36px}
  .steps-track::before{display:none}
}

/* ===================== FAQ ===================== */
.faq{background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;transition:var(--transition);
}
.faq-item.open{border-color:rgba(0,229,160,.35);box-shadow:var(--shadow-glow)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);text-align:left;background:none;
}
.faq-question:hover{color:var(--primary)}
.faq-icon{
  width:26px;height:26px;border-radius:50%;border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;
  transition:transform .3s ease;color:var(--primary);
}
.faq-icon::before{content:'+';font-weight:700}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:var(--primary);background:var(--primary);color:#0C111D}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-answer p{padding:0 24px 20px;font-size:14px;color:var(--text-secondary);line-height:1.75}
.faq-item.open .faq-answer{max-height:320px}
.faq-footer{text-align:center;margin-top:36px}

/* ===================== CTA ===================== */
.cta{
  background:linear-gradient(135deg,var(--primary),#0EA879);
  text-align:center;padding:clamp(64px,8vw,96px) 0;position:relative;overflow:hidden;
}
.cta::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='rgba(12,17,29,0.12)' stroke-width='1'%3E%3Cpath d='M0 30h60M30 0v60'/%3E%3C/g%3E%3C/svg%3E");
}
.cta .container{position:relative;z-index:1}
.cta h2{color:#0C111D;font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800;margin-bottom:12px}
.cta p{color:rgba(12,17,29,.75);font-size:16px;margin-bottom:30px;max-width:480px;margin-left:auto;margin-right:auto}
.cta .btn-dark:hover{background:#0C111D;color:var(--primary-hover);transform:translateY(-1px)}

/* ===================== News / CMS ===================== */
.news{background:var(--bg-alt)}
.news-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}
.news-feature{
  display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);position:relative;height:100%;
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow);border-color:rgba(0,229,160,.25)}
.news-feature-media{height:220px;overflow:hidden}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-feature:hover .news-feature-media img{transform:scale(1.03)}
.news-feature-content{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-feature-content .badge{align-self:flex-start}
.news-feature-content h3{font-size:18px;font-weight:700;line-height:1.4;color:var(--text)}
.news-feature-content h3:hover{color:var(--primary)}
.news-feature-content p{font-size:14px;color:var(--text-secondary);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-feature-content time{font-size:13px;color:var(--secondary);display:inline-flex;align-items:center;gap:6px;margin-top:8px}
.news-feature-content time::before{content:'\f017';font-family:'Font Awesome 6 Free';font-weight:400}

.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:block;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:18px 20px;transition:var(--transition);position:relative;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-glow);border-color:rgba(0,229,160,.25)}
.news-item .badge{margin-bottom:10px;display:inline-flex}
.news-item h4{font-size:15px;font-weight:600;line-height:1.45;margin-bottom:6px;color:var(--text)}
.news-item h4:hover{color:var(--primary)}
.news-item p{
  font-size:13px;color:var(--text-secondary);line-height:1.6;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px;
}
.news-item time{font-size:12px;color:var(--secondary);display:inline-flex;align-items:center;gap:5px}
.news-item time::before{content:'\f017';font-family:'Font Awesome 6 Free';font-weight:400;font-size:11px}

.empty-state{
  grid-column:1/-1;text-align:center;padding:60px 24px;background:var(--bg-card);
  border:1px dashed var(--border-strong);border-radius:var(--radius-lg);
}
.empty-state svg{margin:0 auto 20px;display:block;color:var(--text-muted)}
.empty-state p{color:var(--text-secondary);font-size:15px}
.news-layout .empty-state{margin-top:24px}
@media(max-width:992px){
  .news-layout{grid-template-columns:1fr}
}

/* ===================== Footer ===================== */
.footer{background:var(--bg-dark);border-top:1px solid var(--border);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.copyright{font-size:13px;color:var(--text-muted)}
.copyright .footer-domain{opacity:.7}
.footer-col h3{font-size:14px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul li a{font-size:14px;color:var(--text-secondary);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-col p{font-size:14px;color:var(--text-secondary);line-height:1.6}
.trust-badge{
  display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,160,.08);
  border:1px solid rgba(0,229,160,.2);color:var(--primary);font-size:13px;font-weight:600;
  padding:8px 14px;border-radius:var(--radius-sm);margin-top:16px;
}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
}
.footer-bottom p{font-size:13px;color:var(--text-muted)}
@media(max-width:992px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* ===================== Responsive ===================== */
@media(max-width:768px){
  .header-main{gap:10px;padding:12px 0}
  .brand-text{font-size:17px}
  .brand-icon{width:34px;height:34px;font-size:18px;border-radius:8px}
  .header-search{display:none}
  .header-mobile-search{
    display:flex;align-items:center;justify-content:center;width:40px;height:40px;
    flex-shrink:0;background:transparent;border:1px solid rgba(255,255,255,.15);
    border-radius:10px;color:var(--text);font-size:16px;
  }
  .header-mobile-search:hover{border-color:var(--primary);color:var(--primary)}
  .header-actions .btn-sm{font-size:13px;padding:8px 14px}
  .channel-tabs{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px}
  .channel-tabs::-webkit-scrollbar{display:none}
  .channel-tab{flex-shrink:0;padding:7px 16px;font-size:13px}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero-stats{justify-content:space-between;width:100%}
  .plan-grid{grid-template-columns:1fr;gap:20px}
  .plan-card.featured{order:-1}
  .feature-grid{grid-template-columns:1fr}
  .exclusive-grid{grid-template-columns:1fr}
  .section-head .head-link{position:static;display:inline-flex;margin-top:12px}
}
@media(max-width:480px){
  body{font-size:15px}
  .hero h1{font-size:1.65rem}
  .hero-sub{font-size:14px}
  .stat-num{font-size:1.4rem}
  .hero-visual{height:280px}
  .card-1{width:200px;height:130px;top:0;right:0}
  .card-2{width:160px;height:100px;top:130px;right:40px}
  .card-3{width:140px;height:90px;top:30px;right:150px}
  .card-1 .hero-card-tag,.card-2 .hero-card-tag,.card-3 .hero-card-tag{font-size:11px;padding:4px 8px;left:8px;bottom:8px}
  .btn{padding:12px 18px;font-size:14px}
  .section-head h2{font-size:1.4rem}
  .plan-price .amount{font-size:2.4rem}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root {
      --bg-primary: #0C111D;
      --bg-secondary: #111827;
      --bg-tertiary: #0F172A;
      --bg-card: #182135;
      --bg-elevated: #1E293B;
      --bg-input: #0B1220;
      --primary: #00E5A0;
      --primary-hover: #34F5B8;
      --primary-glow: rgba(0, 229, 160, 0.12);
      --primary-soft: rgba(0, 229, 160, 0.15);
      --accent: #3B82F6;
      --warning: #F59E0B;
      --warning-soft: rgba(245, 158, 11, 0.15);
      --text-main: #F1F5F9;
      --text-secondary: #94A3B8;
      --text-muted: #64748B;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-strong: rgba(255, 255, 255, 0.15);
      --radius-lg: 20px;
      --radius-md: 12px;
      --radius-sm: 10px;
      --radius-pill: 999px;
      --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.05);
      --shadow-hover: 0 8px 30px var(--primary-glow);
      --shadow-btn: 0 4px 16px rgba(0, 229, 160, 0.25);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "DIN Alternate", "Bebas Neue", Impact, sans-serif;
      --container-max: 1200px;
      --gutter: clamp(16px, 4vw, 40px);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-primary);
      color: var(--text-main);
      font-size: 1rem;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    button,
    input {
      font-family: inherit;
      font-size: inherit;
      border: none;
      outline: none;
      background: none;
    }

    ul,
    ol {
      list-style: none;
    }

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

    .container-narrow {
      max-width: 780px;
      margin: 0 auto;
      padding: 0 var(--gutter);
      width: 100%;
    }

    /* ========== 顶部品牌行 ========== */
    .site-header {
      background: rgba(12, 17, 29, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .header-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 14px 0;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-icon {
      width: 40px;
      height: 40px;
      background: var(--primary);
      color: #0C111D;
      font-size: 1.4rem;
      font-weight: 900;
      font-family: var(--font-num);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-btn);
    }

    .brand-text {
      font-size: 1.2rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.01em;
      white-space: nowrap;
    }

    .brand-text em {
      font-style: normal;
      color: var(--primary);
    }

    .header-search {
      flex: 1;
      max-width: 480px;
      display: flex;
      align-items: center;
      background: var(--bg-input);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-pill);
      padding: 4px 4px 4px 16px;
      gap: 8px;
      transition: var(--transition);
    }

    .header-search:focus-within {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.15);
    }

    .header-search input {
      flex: 1;
      background: transparent;
      color: var(--text-main);
      font-size: 0.9rem;
      height: 36px;
      min-width: 0;
    }

    .header-search input::placeholder {
      color: var(--text-muted);
    }

    .header-search button {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #0C111D;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
      flex-shrink: 0;
    }

    .header-search button:hover {
      background: var(--primary-hover);
      transform: scale(1.05);
    }

    .header-cta {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .btn-mobile-search {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      color: var(--text-secondary);
      font-size: 1.1rem;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      cursor: pointer;
      transition: var(--transition);
    }

    .btn-mobile-search:hover {
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #0C111D;
      font-weight: 800;
      font-size: 0.9rem;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-btn);
      cursor: pointer;
      transition: var(--transition);
      border: none;
      white-space: nowrap;
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(0, 229, 160, 0.35);
    }

    .btn-primary:active {
      transform: scale(0.97);
    }

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

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: transparent;
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.9rem;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-strong);
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-ghost:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-1px);
    }

    .btn-ghost:active {
      transform: scale(0.97);
    }

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

    /* ========== 第二行频道导航 ========== */
    .channel-nav {
      background: transparent;
      border-top: 1px solid var(--border-color);
    }

    .channel-tabs {
      display: flex;
      gap: 8px;
      padding: 10px 0;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .channel-tabs::-webkit-scrollbar {
      display: none;
    }

    .channel-tab {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      border-radius: var(--radius-pill);
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      border: 1px solid var(--border-strong);
      background: transparent;
      white-space: nowrap;
      cursor: pointer;
      transition: var(--transition);
    }

    .channel-tab i {
      font-size: 0.8rem;
      opacity: 0.8;
    }

    .channel-tab:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: rgba(255, 255, 255, 0.3);
      color: #fff;
    }

    .channel-tab.active {
      background: var(--primary);
      color: #0C111D;
      border-color: var(--primary);
      font-weight: 800;
      box-shadow: var(--shadow-btn);
    }

    .channel-tab.active i {
      opacity: 1;
    }

    /* ========== 文章页主体 ========== */
    .article-main {
      flex: 1;
      padding: 40px 0 60px;
      position: relative;
    }

    .article-bg {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 300px;
      background: radial-gradient(circle at 30% 20%, rgba(0, 229, 160, 0.08), transparent 60%);
      pointer-events: none;
      z-index: 0;
    }

    .article-wrap {
      position: relative;
      z-index: 1;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8125rem;
      color: var(--text-secondary);
      margin-bottom: 24px;
      flex-wrap: wrap;
    }

    .breadcrumb a {
      color: var(--text-secondary);
      transition: var(--transition);
    }

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

    .breadcrumb .sep {
      color: var(--text-muted);
      font-size: 0.75rem;
    }

    .breadcrumb .current {
      color: var(--text-main);
      font-weight: 500;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      max-width: 260px;
    }

    .article-header {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      margin-bottom: 32px;
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
    }

    .article-header::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
    }

    .article-header h1 {
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      font-weight: 800;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .article-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      font-size: 0.8125rem;
      color: var(--text-secondary);
    }

    .meta-badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 10px;
      border-radius: var(--radius-pill);
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--warning);
      background: var(--warning-soft);
      border: 1px solid rgba(245, 158, 11, 0.3);
    }

    .meta-time {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--text-secondary);
    }

    .meta-time i {
      color: var(--accent);
      font-size: 0.75rem;
    }

    .article-body {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 32px;
      box-shadow: var(--shadow-card);
    }

    .article-body :deep(p) {
      font-size: 1rem;
      line-height: 1.85;
      margin-bottom: 1.5em;
      color: var(--text-main);
    }

    .article-body h2 {
      font-size: 1.25rem;
      font-weight: 700;
      margin: 1.8em 0 0.8em;
      padding-left: 12px;
      border-left: 4px solid var(--primary);
      color: var(--text-main);
      line-height: 1.4;
    }

    .article-body h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin: 1.5em 0 0.6em;
      color: var(--text-main);
    }

    .article-body blockquote {
      border-left: 3px solid var(--primary);
      background: var(--bg-secondary);
      padding: 16px 20px;
      margin: 1.5em 0;
      border-radius: 8px;
      color: var(--text-secondary);
      font-style: italic;
    }

    .article-body ul,
    .article-body ol {
      margin: 1em 0 1.5em;
      padding-left: 20px;
    }

    .article-body ul li {
      position: relative;
      padding-left: 16px;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .article-body ul li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 10px;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
    }

    .article-body ol li {
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .article-body img {
      border-radius: 12px;
      margin: 1.5em auto;
      max-width: 100%;
      height: auto;
    }

    .article-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.5em 0;
      font-size: 0.875rem;
      overflow-x: auto;
      display: block;
      white-space: nowrap;
    }

    .article-body table th,
    .article-body table td {
      padding: 10px 16px;
      border: 1px solid var(--border-color);
      text-align: left;
    }

    .article-body table th {
      background: var(--bg-secondary);
      font-weight: 700;
      color: var(--primary);
    }

    .article-content {
      min-height: 200px;
    }

    .article-content p {
      font-size: 1rem;
      line-height: 1.85;
      margin-bottom: 1.5em;
      color: #e2e8f0;
    }

    .article-content p:last-child {
      margin-bottom: 0;
    }

    .article-content p span,
    .article-content p strong {
      color: var(--text-main);
    }

    .article-content a {
      color: var(--primary);
      border-bottom: 1px solid transparent;
    }

    .article-content a:hover {
      border-bottom-color: var(--primary);
    }

    /* 无文章内容状态 */
    .article-empty {
      text-align: center;
      padding: 80px 20px;
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
    }

    .empty-icon {
      width: 72px;
      height: 72px;
      margin: 0 auto 20px;
      background: var(--primary-soft);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      color: var(--primary);
    }

    .article-empty h2 {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    .article-empty a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin: 0 6px;
    }

    /* ========== 相关推荐 ========== */
    .related-section {
      margin-bottom: 32px;
    }

    .related-section h2 {
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 20px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .related-section h2::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--border-color);
    }

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

    .related-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .related-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 229, 160, 0.4);
    }

    .related-card .thumb {
      width: 100%;
      height: 150px;
      object-fit: cover;
      background: var(--bg-secondary);
    }

    .related-card .card-body {
      padding: 16px 18px;
    }

    .related-card .card-title {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.5;
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .related-card:hover .card-title {
      color: var(--primary);
    }

    .related-card .card-meta {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .related-card .card-meta i {
      color: var(--accent);
      font-size: 0.7rem;
    }

    /* 返回链接 */
    .article-back {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-secondary);
      font-size: 0.9rem;
      font-weight: 500;
      transition: var(--transition);
    }

    .article-back:hover {
      color: var(--primary);
      gap: 12px;
    }

    .article-back i {
      font-size: 0.85rem;
    }

    /* ========== 页脚 ========== */
    .footer {
      background: #0A0E18;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 20px;
      margin-top: auto;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid var(--border-color);
    }

    .footer .brand {
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 0.875rem;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 320px;
    }

    .footer-brand .copyright {
      font-size: 0.8125rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .footer-domain {
      color: var(--text-muted);
      font-family: var(--font-num);
      letter-spacing: 0.04em;
    }

    .footer-col h3 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      font-size: 0.875rem;
      color: var(--text-secondary);
      transition: var(--transition);
    }

    .footer-col ul li a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .footer-col p {
      font-size: 0.875rem;
      color: var(--text-secondary);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .trust-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8125rem;
      color: var(--primary);
      background: var(--primary-soft);
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      margin-top: 8px;
    }

    .trust-badge i {
      font-size: 0.9rem;
    }

    .footer-bottom {
      padding-top: 20px;
      text-align: center;
    }

    .footer-bottom p {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 992px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .header-search {
        max-width: 320px;
      }
    }

    @media (max-width: 768px) {
      .header-top {
        flex-wrap: wrap;
        gap: 12px;
        padding: 12px 0;
      }

      .header-search {
        order: 3;
        max-width: 100%;
        width: 100%;
      }

      .btn-mobile-search {
        display: none;
      }

      .header-cta .btn-primary {
        padding: 8px 16px;
        font-size: 0.85rem;
      }

      .brand-text {
        font-size: 1.05rem;
      }

      .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 1.2rem;
      }

      .article-header {
        padding: 28px 24px;
      }

      .article-body {
        padding: 24px 20px;
      }

      .related-grid {
        grid-template-columns: 1fr 1fr;
        gap: 14px;
      }

      .related-card .thumb {
        height: 120px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
      }
    }

    @media (max-width: 520px) {
      .channel-tab {
        padding: 7px 16px;
        font-size: 0.8125rem;
      }

      .header-cta .btn-primary {
        display: none;
      }

      .btn-mobile-search {
        display: flex;
      }

      .related-grid {
        grid-template-columns: 1fr;
      }

      .related-card .thumb {
        height: 160px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .article-header {
        padding: 22px 18px;
      }

      .article-header h1 {
        font-size: 1.35rem;
      }

      .article-body {
        padding: 20px 16px;
      }

      .article-meta {
        gap: 10px;
      }

      .breadcrumb .current {
        max-width: 180px;
      }
    }

/* roulang page: category1 */
:root {
  --bg-primary: #0C111D;
  --bg-secondary: #111827;
  --bg-tertiary: #0F172A;
  --bg-card: #182135;
  --bg-input: #0B1220;
  --bg-panel: #1E293B;
  --primary: #00E5A0;
  --primary-hover: #34F5B8;
  --secondary: #3B82F6;
  --accent: #F59E0B;
  --text-main: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.14);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 30px rgba(0,229,160,0.12);
  --shadow-btn: 0 4px 16px rgba(0,229,160,0.25);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-display: "DIN Alternate", "Bebas Neue", "Impact", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

ul, ol {
  list-style: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(0, 229, 160, 0.5);
  outline-offset: 2px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 40px);
  padding-right: clamp(16px, 4vw, 40px);
}

/* ===== Topbar / Brand Row ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 17, 29, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary);
  color: #0C111D;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px rgba(0, 229, 160, 0.35);
}

.brand-text {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand-text em {
  font-style: normal;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.92rem;
  margin-left: 2px;
}

.search-form {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-pill);
  overflow: hidden;
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
  transition: var(--transition);
}

.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.15);
}

.search-form input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  padding: 10px 18px;
  color: var(--text-main);
  font-size: 0.875rem;
}

.search-form input::placeholder {
  color: var(--text-muted);
}

.search-form button {
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #0C111D;
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.search-form button:hover {
  background: var(--primary-hover);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-size: 0.9375rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--primary);
  color: #0C111D;
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-dark {
  background: #0C111D;
  color: var(--primary);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.35);
}

.btn-dark:hover {
  transform: translateY(-1px);
  color: var(--primary-hover);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.45);
}

.btn-small {
  padding: 9px 20px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

/* ===== Channel Nav ===== */
.channel-nav {
  background: rgba(12, 17, 29, 0.88);
  border-bottom: 1px solid var(--border);
}

.channel-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.channel-tabs::-webkit-scrollbar {
  display: none;
}

.channel-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  border: 1px solid var(--border-strong);
  background: transparent;
  white-space: nowrap;
  transition: var(--transition);
}

.channel-tab i {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.channel-tab:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--primary);
  color: var(--primary);
}

.channel-tab:hover i {
  color: var(--primary);
}

.channel-tab.active {
  background: var(--primary);
  color: #0C111D;
  border-color: var(--primary);
}

.channel-tab.active i {
  color: #0C111D;
}

/* ===== Hero ===== */
.category-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 92px 0 84px;
  overflow: hidden;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(12, 17, 29, 0.92) 20%, rgba(12, 17, 29, 0.72) 60%, rgba(12, 17, 29, 0.55));
}

.category-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 75% 25%, rgba(0, 229, 160, 0.15), transparent 55%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid rgba(0, 229, 160, 0.5);
  border-radius: var(--radius-pill);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: rgba(0, 229, 160, 0.08);
  margin-bottom: 22px;
}

.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px rgba(0, 229, 160, 0.8);
}

.hero-content h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.hero-content .hero-desc {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.stat-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 22px;
  min-width: 112px;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.stat-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.stat-item span {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

/* ===== Section ===== */
.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-head {
  margin-bottom: 44px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.section-head .section-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 480px;
}

/* ===== Card Grid ===== */
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
}

.card-img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #1E293B, #0F172A);
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card-img img {
  transform: scale(1.04);
}

.card-body {
  padding: 22px 22px 26px;
}

.card-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.card-body p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
}

.text-link i {
  transition: transform 0.25s ease;
}

.text-link:hover {
  color: var(--primary-hover);
}

.text-link:hover i {
  transform: translateX(4px);
}

/* ===== Badge ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.badge-primary {
  color: var(--primary);
  background: rgba(0, 229, 160, 0.15);
  border: 1px solid rgba(0, 229, 160, 0.25);
}

.badge-accent {
  color: var(--accent);
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-secondary {
  color: var(--secondary);
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

/* ===== Info Split ===== */
.info-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.info-feature-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}

.info-feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(12, 17, 29, 0.2), rgba(12, 17, 29, 0.92));
}

.info-feature-body {
  position: relative;
  z-index: 2;
  padding: 28px;
}

.info-feature-body h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.info-feature-body p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.7;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.info-list-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: var(--transition);
}

.info-list-item:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.info-list-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.info-list-icon.green {
  background: rgba(0, 229, 160, 0.15);
  color: var(--primary);
}

.info-list-icon.blue {
  background: rgba(59, 130, 246, 0.15);
  color: var(--secondary);
}

.info-list-icon.amber {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent);
}

.info-list-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.info-list-item p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== Hot Topics ===== */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.topic-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.topic-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
}

.topic-card .topic-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: linear-gradient(135deg, #1E293B, #0F172A);
}

.topic-card .topic-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.topic-card:hover .topic-img img {
  transform: scale(1.05);
}

.topic-body {
  padding: 18px 20px 22px;
}

.topic-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.topic-body p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.topic-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--border-strong);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-main);
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #0C111D;
}

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

.faq-answer p {
  padding: 0 22px 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.75;
  background: var(--bg-panel);
  padding-top: 4px;
}

.faq-more {
  text-align: center;
  margin-top: 24px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.faq-more a {
  color: var(--secondary);
  font-weight: 600;
}

.faq-more a:hover {
  color: var(--primary);
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: linear-gradient(120deg, #00E5A0, #0EA879);
  padding: 56px 0;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.2) 0%, transparent 40%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-inner h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: #0C111D;
  font-weight: 800;
  margin-bottom: 10px;
}

.cta-inner p {
  color: rgba(12, 17, 29, 0.75);
  font-size: 0.9375rem;
  margin-bottom: 26px;
  line-height: 1.7;
}

/* ===== Explore ===== */
.explore-section {
  padding: 72px 0;
  background: var(--bg-tertiary);
}

.explore-inner {
  text-align: center;
}

.explore-inner h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  margin-bottom: 10px;
}

.explore-inner p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 30px;
}

.explore-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.explore-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-main);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: var(--transition);
}

.explore-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 229, 160, 0.1);
}

.explore-link i {
  transition: transform 0.25s ease;
}

.explore-link:hover i {
  transform: translateX(4px);
}

/* ===== Footer ===== */
.footer {
  background: #0A0E18;
  border-top: 1px solid var(--border);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
  padding-bottom: 40px;
}

.footer-brand p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-top: 14px;
}

.copyright {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 18px;
}

.footer-domain {
  color: var(--text-muted);
  margin-left: 4px;
}

.footer-col h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-main);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-col p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.footer-col p a {
  color: var(--secondary);
  font-weight: 600;
}

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

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  color: var(--primary);
  background: rgba(0, 229, 160, 0.06);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .info-split {
    grid-template-columns: 1fr;
  }

  .topic-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .topbar-inner {
    grid-template-columns: auto 1fr auto;
    gap: 12px;
  }

  .brand-text {
    font-size: 1rem;
  }

  .brand-text em {
    font-size: 0.8rem;
  }

  .search-form {
    max-width: 100%;
  }

  .search-form input {
    padding: 9px 14px;
  }

  .btn-small {
    padding: 8px 14px;
    font-size: 0.8125rem;
  }

  .category-hero {
    padding: 64px 0 56px;
  }

  .hero-stats {
    gap: 10px;
  }

  .stat-item {
    padding: 10px 16px;
    min-width: 92px;
  }

  .stat-item strong {
    font-size: 1.3rem;
  }

  .section {
    padding: 56px 0;
  }

  .card-grid-3 {
    grid-template-columns: 1fr;
  }

  .topic-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .topbar-inner {
    grid-template-columns: auto 1fr;
  }

  .search-form {
    order: 3;
    grid-column: 1 / -1;
    margin-top: 6px;
  }

  .btn-small {
    grid-column: 2;
    justify-self: end;
  }

  .hero-content h1 {
    font-size: 1.6rem;
  }

  .hero-content .hero-desc {
    font-size: 0.875rem;
  }

  .stat-item {
    flex: 1;
    min-width: 0;
    text-align: center;
  }

  .cta-inner p {
    font-size: 0.875rem;
  }

  .explore-links {
    flex-direction: column;
    align-items: center;
  }

  .explore-link {
    width: 100%;
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* roulang page: category2 */
:root{
  --bg:#0C111D;
  --bg-alt:#111827;
  --bg-card:#182135;
  --bg-deep:#0A0E18;
  --primary:#00E5A0;
  --primary-hover:#34F5B8;
  --accent:#3B82F6;
  --warning:#F59E0B;
  --text:#F1F5F9;
  --text-secondary:#94A3B8;
  --text-muted:#64748B;
  --border:rgba(255,255,255,0.08);
  --border-light:rgba(255,255,255,0.1);
  --radius:12px;
  --radius-lg:20px;
  --radius-full:999px;
  --shadow:0 4px 20px rgba(0,0,0,0.3);
  --shadow-hover:0 8px 30px rgba(0,229,160,0.12);
  --shadow-btn:0 4px 16px rgba(0,229,160,0.25);
  --transition:all .25s cubic-bezier(.4,0,.2,1);
  --font-num:'DIN Alternate','Bebas Neue',Impact,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-hover)}
ul,ol{list-style:none}
button,input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(12,17,29,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.header-top{border-bottom:1px solid var(--border)}
.header-top-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:68px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text);font-weight:800;font-size:1.25rem;flex-shrink:0;
}
.brand:hover{color:var(--text)}
.brand-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  background:var(--primary);color:#0C111D;
  font-family:var(--font-num);font-size:1.65rem;font-weight:800;
  box-shadow:0 0 20px rgba(0,229,160,0.3);
}
.brand-text{white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary)}
.header-search{
  display:flex;align-items:center;gap:0;
  background:#0B1220;border:1px solid var(--border-light);
  border-radius:var(--radius-full);
  padding:4px 6px 4px 16px;
  flex:0 1 420px;transition:var(--transition);
}
.header-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(0,229,160,0.15);
}
.header-search input{
  flex:1;background:transparent;border:none;outline:none;
  color:var(--text);font-size:.875rem;height:36px;min-width:0;
}
.header-search input::placeholder{color:var(--text-muted)}
.header-search button{
  width:36px;height:36px;border:none;border-radius:var(--radius-full);
  background:var(--primary);color:#0C111D;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:var(--transition);font-size:.875rem;
}
.header-search button:hover{background:var(--primary-hover);transform:translateY(-1px)}
.header-search button:active{transform:scale(.97)}
.header-search button:focus{outline:2px solid rgba(0,229,160,.5);outline-offset:2px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;font-weight:700;font-size:.9375rem;
  padding:12px 24px;border:none;cursor:pointer;
  transition:var(--transition);text-align:center;line-height:1.2;
}
.btn:focus{outline:2px solid rgba(0,229,160,.5);outline-offset:2px}
.btn-primary{
  background:var(--primary);color:#0C111D;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{background:var(--primary-hover);color:#0C111D;transform:translateY(-1px)}
.btn-primary:active{transform:scale(.97)}
.btn-outline{
  background:transparent;color:var(--text);
  border:1px solid rgba(255,255,255,0.25);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-outline:active{transform:scale(.97)}
.btn-dark{
  background:#0C111D;color:var(--primary);
  box-shadow:0 4px 20px rgba(0,0,0,0.4);
}
.btn-dark:hover{background:#0A0E18;color:var(--primary-hover);transform:translateY(-1px)}
.btn-dark:active{transform:scale(.97)}
.btn-sm{padding:9px 18px;font-size:.875rem}
.channel-nav{border-bottom:1px solid var(--border)}
.channel-tabs{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;padding:10px 0;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 20px;border-radius:var(--radius-full);
  font-size:.875rem;font-weight:600;color:var(--text);
  background:transparent;border:1px solid var(--border-light);
  white-space:nowrap;transition:var(--transition);
}
.channel-tab i{font-size:.875rem;color:var(--text-secondary);transition:var(--transition)}
.channel-tab:hover{
  background:rgba(255,255,255,0.06);
  color:var(--primary);border-color:var(--primary);
}
.channel-tab:hover i{color:var(--primary)}
.channel-tab.active{
  background:var(--primary);color:#0C111D;border-color:var(--primary);
  box-shadow:var(--shadow-btn);
}
.channel-tab.active i{color:#0C111D}
.cat-hero{
  position:relative;padding:72px 0 88px;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(12,17,29,0.92) 20%,rgba(12,17,29,0.78) 55%,rgba(12,17,29,0.6));
}
.cat-hero::after{
  content:'';position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,229,160,0.16),transparent 70%);
  top:-160px;right:10%;
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero-content{max-width:720px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--radius-full);
  font-size:.75rem;font-weight:600;letter-spacing:.02em;
}
.badge-primary{
  color:var(--primary);background:rgba(0,229,160,0.15);
  border:1px solid rgba(0,229,160,0.35);
}
.cat-hero h1{
  font-size:clamp(2rem,4.5vw,3.2rem);font-weight:800;line-height:1.15;
  margin:18px 0 16px;
}
.cat-hero p{
  font-size:1.0625rem;color:var(--text-secondary);
  max-width:560px;line-height:1.8;
}
.cat-hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.cat-section{padding:84px 0}
.cat-section-alt{background:var(--bg-alt)}
.section-head{text-align:center;margin-bottom:52px}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;line-height:1.25;
  margin-bottom:10px;
}
.section-head p{color:var(--text-secondary);font-size:.9375rem;max-width:560px;margin:0 auto}
.overview-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.overview-item{
  display:flex;gap:24px;align-items:flex-start;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:28px 30px;
  transition:var(--transition);
}
.overview-item:hover{
  transform:translateY(-4px);
  border-color:rgba(0,229,160,0.4);
  box-shadow:var(--shadow-hover);
}
.overview-num{
  font-family:var(--font-num);font-size:2.6rem;font-weight:800;
  color:rgba(0,229,160,0.35);line-height:1;flex-shrink:0;
  min-width:56px;
}
.overview-content h3{font-size:1.125rem;font-weight:700;margin-bottom:6px}
.overview-content p{color:var(--text-secondary);font-size:.875rem;line-height:1.7;margin-bottom:12px}
.overview-content ul{display:flex;flex-wrap:wrap;gap:8px}
.overview-content ul li{
  font-size:.75rem;color:var(--text-secondary);
  background:rgba(59,130,246,0.12);
  border:1px solid rgba(59,130,246,0.2);
  border-radius:var(--radius-full);padding:3px 12px;
}
.scenario-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  max-width:960px;margin:0 auto;
}
.scenario-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:32px 28px;
  position:relative;overflow:hidden;transition:var(--transition);
}
.scenario-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);
  border-color:rgba(0,229,160,0.35);
}
.scenario-num{
  font-family:var(--font-num);font-size:3rem;font-weight:800;
  color:var(--warning);opacity:.7;line-height:1;display:block;margin-bottom:16px;
}
.scenario-card h3{font-size:1.125rem;font-weight:700;margin-bottom:10px}
.scenario-card p{color:var(--text-secondary);font-size:.875rem;line-height:1.75}
.steps-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  position:relative;
}
.step-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:28px 24px;
  position:relative;transition:var(--transition);
}
.step-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);
  border-color:rgba(0,229,160,0.3);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:var(--primary);color:#0C111D;
  font-family:var(--font-num);font-size:1.25rem;font-weight:800;
  margin-bottom:18px;box-shadow:0 0 20px rgba(0,229,160,0.25);
}
.step-card h3{font-size:1rem;font-weight:700;margin-bottom:8px}
.step-card p{color:var(--text-secondary);font-size:.8125rem;line-height:1.7}
.hot-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.hot-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:var(--transition);
}
.hot-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);
  border-color:rgba(0,229,160,0.35);
}
.hot-cover{
  aspect-ratio:16/9;overflow:hidden;position:relative;
  background:linear-gradient(135deg,#00E5A0 0%,#3B82F6 100%);
}
.hot-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.hot-card:hover .hot-cover img{transform:scale(1.04)}
.hot-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,var(--bg-card) 0%,transparent 40%);
}
.hot-body{padding:20px 24px 26px}
.hot-body h3{font-size:1.0625rem;font-weight:700;margin-bottom:8px}
.hot-body p{color:var(--text-secondary);font-size:.8125rem;line-height:1.7}
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:rgba(0,229,160,0.25)}
.faq-item summary{
  cursor:pointer;padding:20px 58px 20px 24px;
  font-weight:600;font-size:.9375rem;color:var(--text);
  position:relative;list-style:none;transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary::after{
  content:'+';position:absolute;right:20px;top:50%;
  transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;
  background:rgba(0,229,160,0.1);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:1.125rem;font-weight:700;transition:var(--transition);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item[open] summary{border-bottom:1px solid var(--border)}
.faq-item p{
  padding:16px 24px 20px;color:var(--text-secondary);
  font-size:.875rem;line-height:1.75;background:var(--bg-alt);
}
.cta-section{
  padding:88px 0;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#00E5A0 0%,#0EA879 100%);
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(0,0,0,0.12) 1px,transparent 1px);
  background-size:22px 22px;
}
.cta-section .container{position:relative;z-index:2;text-align:center}
.cta-section h2{color:#0C111D;font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;margin-bottom:12px}
.cta-section p{color:rgba(12,17,29,0.75);font-size:1rem;margin-bottom:30px}
.cta-section .btn-dark{font-size:1rem}
.cat-explore{padding:72px 0;background:var(--bg-alt);border-top:1px solid var(--border)}
.cat-explore .container{text-align:center}
.cat-explore h2{font-size:clamp(1.3rem,2.5vw,1.8rem);font-weight:700;margin-bottom:32px}
.explore-links{
  display:flex;justify-content:center;gap:20px;flex-wrap:wrap;
}
.explore-link{
  display:inline-flex;flex-direction:column;align-items:flex-start;gap:4px;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:22px 28px;min-width:220px;
  text-align:left;transition:var(--transition);
}
.explore-link span{font-size:1.0625rem;font-weight:700;color:var(--text)}
.explore-link small{font-size:.8125rem;color:var(--text-secondary)}
.explore-link:hover{
  border-color:var(--primary);transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.explore-link:hover span{color:var(--primary)}
.explore-link.active{
  border-color:var(--primary);background:rgba(0,229,160,0.06);
}
.extra-note{
  text-align:center;margin-top:32px;color:var(--text-muted);
  font-size:.8125rem;
}
.footer{
  background:var(--bg-deep);
  border-top:1px solid var(--border);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:40px;
  padding-bottom:40px;
}
.footer-brand p{color:var(--text-secondary);font-size:.875rem;line-height:1.7;margin-top:16px}
.footer-brand .brand{margin-bottom:4px}
.copyright{
  color:var(--text-muted);font-size:.75rem;margin-top:16px;
}
.footer-domain{color:var(--text-muted)}
.footer-col h3{font-size:.9375rem;font-weight:600;color:var(--text);margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{
  color:var(--text-secondary);font-size:.875rem;transition:var(--transition);
}
.footer-col ul a:hover{color:var(--primary);padding-left:4px}
.footer-col p{color:var(--text-secondary);font-size:.875rem;margin-bottom:8px}
.footer-col p a{color:var(--primary)}
.trust-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,229,160,0.1);border:1px solid rgba(0,229,160,0.25);
  color:var(--primary);border-radius:var(--radius-full);
  padding:6px 14px;font-size:.8125rem;font-weight:600;margin-top:10px;
}
.footer-bottom{
  border-top:1px solid var(--border);padding:20px 0;
  text-align:center;
}
.footer-bottom p{color:var(--text-muted);font-size:.75rem}
@media (max-width:1024px){
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .hot-grid{grid-template-columns:repeat(2,1fr)}
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:768px){
  .site-header{position:static}
  .header-top{position:sticky;top:0;z-index:101;background:rgba(12,17,29,0.96)}
  .header-top-row{height:60px;gap:10px}
  .header-search{
    flex:1;max-width:none;padding-left:12px;
  }
  .header-search button{width:32px;height:32px;font-size:.75rem}
  .brand-text{font-size:1.0625rem}
  .brand-icon{width:34px;height:34px;font-size:1.4rem;border-radius:8px}
  .btn-sm{padding:8px 14px;font-size:.8125rem}
  .cat-hero{padding:52px 0 64px}
  .cat-hero h1{font-size:clamp(1.8rem,5vw,2.4rem)}
  .cat-hero-actions .btn{width:100%;justify-content:center}
  .overview-item{flex-direction:column;gap:14px;padding:24px}
  .overview-num{font-size:2rem;min-width:auto}
  .scenario-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .hot-grid{grid-template-columns:1fr}
  .cat-section{padding:60px 0}
  .explore-links{flex-direction:column;align-items:stretch;max-width:420px;margin:0 auto}
  .explore-link{text-align:center;align-items:center}
  .cta-section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:520px){
  .header-top-row{gap:8px}
  .header-search button{display:none}
  .header-search{padding-left:16px;padding-right:4px;border-radius:var(--radius-full)}
  .cat-hero-actions{flex-direction:column}
  .cat-hero p{font-size:.9375rem}
  .section-head{margin-bottom:36px}
  .footer-bottom p{font-size:.6875rem}
  .btn{width:100%}
  .channel-tab{padding:7px 14px;font-size:.8125rem}
}