/* roulang page: index */
:root{
  --primary:#ff6a00;
  --primary-dark:#e85d00;
  --primary-glow:rgba(255,106,0,.35);
  --accent:#00e5ff;
  --accent-glow:rgba(0,229,255,.25);
  --dark:#0b0f1a;
  --dark-card:#151b2e;
  --dark-card-hover:#1c2438;
  --dark-border:rgba(255,255,255,.08);
  --text-light:#f0f4f8;
  --text-muted:#9aa5b8;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-lg:0 20px 45px rgba(0,0,0,.45);
  --shadow-md:0 10px 30px rgba(0,0,0,.3);
  --transition:all .3s ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter','PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--dark);
  color:var(--text-light);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none;transition:var(--transition);}
a:hover{color:#fff;}
img{max-width:100%;height:auto;}
ul{padding-left:0;list-style:none;margin-bottom:0;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;}

/* ===== NAVBAR ===== */
.navbar{
  background:linear-gradient(180deg,rgba(10,13,22,.98),rgba(10,13,22,.92));
  border-bottom:1px solid var(--dark-border);
  padding:0;
  min-height:70px;
  backdrop-filter:blur(8px);
  position:sticky;
  top:0;
  z-index:1000;
}
.navbar-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0;
}
.brand-text{
  font-size:1.35rem;
  font-weight:800;
  letter-spacing:-.5px;
  color:#fff;
  display:flex;
  align-items:center;
  gap:8px;
}
.brand-text i{
  color:var(--primary);
  font-size:1.6rem;
}
.brand-text:hover{color:var(--primary);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-links .nav-item{
  display:inline-block;
  padding:10px 16px;
  color:var(--text-muted);
  font-weight:500;
  border-radius:8px;
  font-size:.95rem;
  position:relative;
  transition:var(--transition);
}
.nav-links .nav-item:hover{
  color:#fff;
  background:rgba(255,255,255,.05);
}
.nav-links .nav-item.active{
  color:#fff;
  background:rgba(255,106,0,.12);
  box-shadow:inset 0 0 0 1px rgba(255,106,0,.4),0 0 12px rgba(255,106,0,.2);
}
.nav-links .nav-item.active::after{
  content:'';
  position:absolute;
  left:50%;
  bottom:0;
  transform:translateX(-50%);
  width:24px;
  height:2px;
  background:var(--primary);
  box-shadow:0 0 8px var(--primary);
  border-radius:4px;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  padding:10px 22px;
  border-radius:50px;
  font-weight:600;
  font-size:.9rem;
  border:none;
  transition:var(--transition);
  box-shadow:0 0 18px rgba(255,106,0,.3);
}
.nav-cta:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 28px rgba(255,106,0,.45);
}
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid var(--dark-border);
  color:#fff;
  width:44px;
  height:44px;
  border-radius:10px;
  font-size:1.1rem;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}

/* ===== HERO ===== */
.hero{
  position:relative;
  padding:110px 0 90px;
  background:linear-gradient(135deg,rgba(8,10,18,.75),rgba(11,15,26,.85)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
  min-height:620px;
  display:flex;
  align-items:center;
}
.hero::before{
  content:'';
  position:absolute;
  top:-60%;
  right:-20%;
  width:600px;
  height:600px;
  background:radial-gradient(circle,rgba(255,106,0,.15),transparent 60%);
  pointer-events:none;
}
.hero::after{
  content:'';
  position:absolute;
  bottom:-30%;
  left:-10%;
  width:500px;
  height:500px;
  background:radial-gradient(circle,rgba(0,229,255,.1),transparent 60%);
  pointer-events:none;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,106,0,.15);
  border:1px solid rgba(255,106,0,.4);
  color:var(--primary);
  padding:6px 16px;
  border-radius:40px;
  font-size:.85rem;
  font-weight:600;
  letter-spacing:.3px;
  margin-bottom:20px;
}
.hero h1{
  font-size:3.2rem;
  font-weight:800;
  line-height:1.2;
  letter-spacing:-1px;
  margin-bottom:20px;
  text-shadow:0 4px 30px rgba(0,0,0,.4);
}
.hero h1 span{
  color:var(--primary);
  position:relative;
}
.hero p{
  font-size:1.05rem;
  color:var(--text-muted);
  max-width:600px;
  margin-bottom:32px;
  line-height:1.8;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.btn-primary-custom{
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  font-weight:700;
  padding:15px 32px;
  border-radius:50px;
  border:none;
  transition:var(--transition);
  box-shadow:0 10px 30px rgba(255,106,0,.35);
}
.btn-primary-custom:hover{
  color:#fff;
  transform:translateY(-3px);
  box-shadow:0 15px 40px rgba(255,106,0,.5);
}
.btn-outline-custom{
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:transparent;
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  font-weight:600;
  padding:14px 28px;
  border-radius:50px;
  transition:var(--transition);
  backdrop-filter:blur(4px);
}
.btn-outline-custom:hover{
  border-color:var(--accent);
  color:var(--accent);
  box-shadow:0 0 20px rgba(0,229,255,.2);
  transform:translateY(-3px);
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:32px;
  margin-top:60px;
}
.hero-stat{
  display:flex;
  flex-direction:column;
}
.hero-stat .num{
  font-size:2rem;
  font-weight:800;
  color:#fff;
  line-height:1.2;
}
.hero-stat .label{
  font-size:.85rem;
  color:var(--text-muted);
}
.hero-glow-card{
  background:rgba(255,255,255,.04);
  border:1px solid var(--dark-border);
  border-radius:16px;
  padding:20px 24px;
  backdrop-filter:blur(6px);
  position:relative;
  overflow:hidden;
}
.hero-glow-card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
}

/* ===== SECTION COMMON ===== */
.section{padding:100px 0;}
.section-header{
  text-align:center;
  margin-bottom:60px;
}
.section-eyebrow{
  display:inline-block;
  font-size:.8rem;
  font-weight:600;
  letter-spacing:2px;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:12px;
}
.section-title{
  font-size:2.4rem;
  font-weight:700;
  color:#fff;
  line-height:1.3;
  margin-bottom:16px;
}
.section-title span{
  color:var(--primary);
}
.section-desc{
  font-size:1rem;
  color:var(--text-muted);
  max-width:680px;
  margin:0 auto;
}

/* ===== FEATURE CARDS ===== */
.feature-card{
  background:var(--dark-card);
  border:1px solid var(--dark-border);
  border-radius:var(--radius-lg);
  padding:36px 28px;
  height:100%;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.feature-card::after{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--primary),transparent);
  opacity:0;
  transition:var(--transition);
}
.feature-card:hover{
  transform:translateY(-6px);
  background:var(--dark-card-hover);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,106,0,.3);
}
.feature-card:hover::after{opacity:1;}
.feature-icon{
  width:60px;
  height:60px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.6rem;
  background:linear-gradient(135deg,rgba(255,106,0,.2),rgba(255,106,0,.05));
  color:var(--primary);
  margin-bottom:20px;
  border:1px solid rgba(255,106,0,.2);
}
.feature-card h3{
  font-size:1.3rem;
  font-weight:600;
  margin-bottom:14px;
  color:#fff;
}
.feature-card p{
  color:var(--text-muted);
  font-size:.92rem;
  margin-bottom:0;
}
.feature-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  font-size:.85rem;
  font-weight:600;
  margin-top:18px;
}

/* ===== INFO GRID ===== */
.info-section{
  background:linear-gradient(180deg,rgba(10,13,22,.4),rgba(10,13,22,.9)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  position:relative;
}
.info-card{
  background:rgba(20,25,38,.85);
  border:1px solid var(--dark-border);
  border-radius:16px;
  padding:25px;
  height:100%;
  transition:var(--transition);
  backdrop-filter:blur(4px);
}
.info-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(0,229,255,.3);
}
.info-card h4{
  font-size:1.05rem;
  font-weight:600;
  color:#fff;
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:8px;
}
.info-card h4 i{color:var(--accent);font-size:1rem;}
.info-card p{
  color:var(--text-muted);
  font-size:.88rem;
  line-height:1.7;
  margin-bottom:0;
}

/* ===== LATEST NEWS ===== */
.news-card{
  background:var(--dark-card);
  border:1px solid var(--dark-border);
  border-radius:16px;
  overflow:hidden;
  transition:var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
}
.news-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,106,0,.35);
}
.news-card-img{
  position:relative;
  height:200px;
  overflow:hidden;
}
.news-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.news-card:hover .news-card-img img{transform:scale(1.06);}
.news-card-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(transparent 50%,rgba(10,13,22,.7));
}
.news-card-tag{
  position:absolute;
  top:14px;
  left:14px;
  z-index:2;
  background:var(--primary);
  color:#fff;
  font-size:.75rem;
  padding:4px 12px;
  border-radius:40px;
  font-weight:600;
  box-shadow:0 4px 14px rgba(255,106,0,.3);
}
.news-card-body{
  padding:24px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.news-card-body h3{
  font-size:1.15rem;
  font-weight:600;
  color:#fff;
  margin-bottom:10px;
  line-height:1.4;
}
.news-card-body h3 a{color:#fff;}
.news-card-body h3 a:hover{color:var(--primary);}
.news-card-body p{
  color:var(--text-muted);
  font-size:.9rem;
  flex:1;
  margin-bottom:16px;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:.8rem;
  color:var(--text-muted);
  border-top:1px solid var(--dark-border);
  padding-top:14px;
}
.news-meta i{color:var(--primary);font-size:.85rem;}
.empty-news{
  background:rgba(255,106,0,.06);
  border:1px dashed rgba(255,106,0,.3);
  border-radius:16px;
  padding:40px;
  text-align:center;
  color:var(--text-muted);
}

/* ===== RANKING SECTION ===== */
.ranking-section{
  background:var(--dark);
  position:relative;
}
.ranking-card{
  background:var(--dark-card);
  border:1px solid var(--dark-border);
  border-radius:var(--radius-lg);
  padding:28px;
  display:flex;
  align-items:center;
  gap:20px;
  transition:var(--transition);
  margin-bottom:14px;
}
.ranking-card:hover{
  background:var(--dark-card-hover);
  transform:translateX(6px);
  border-color:rgba(0,229,255,.3);
  box-shadow:var(--shadow-md);
}
.ranking-num{
  font-size:2rem;
  font-weight:800;
  color:var(--primary);
  width:56px;
  text-align:center;
  line-height:1;
  text-shadow:0 0 20px rgba(255,106,0,.4);
}
.ranking-team{
  flex:1;
  display:flex;
  align-items:center;
  gap:14px;
}
.ranking-team-icon{
  width:42px;
  height:42px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  color:var(--accent);
}
.ranking-team h4{
  font-size:1rem;
  margin:0;
  color:#fff;
  font-weight:600;
}
.ranking-team p{
  font-size:.8rem;
  color:var(--text-muted);
  margin:0;
}
.ranking-stat{
  text-align:center;
  padding:0 18px;
  border-left:1px solid var(--dark-border);
}
.ranking-stat .val{
  font-size:1.2rem;
  font-weight:700;
  color:#fff;
}
.ranking-stat .lbl{
  font-size:.75rem;
  color:var(--text-muted);
  display:block;
}

/* ===== STEPS ===== */
.steps-section{
  background:linear-gradient(180deg,rgba(10,13,22,.5),rgba(10,13,22,.95)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.step-item{
  position:relative;
  text-align:center;
  padding:40px 24px;
  background:rgba(20,25,38,.8);
  border-radius:20px;
  border:1px solid var(--dark-border);
  height:100%;
  transition:var(--transition);
  backdrop-filter:blur(4px);
}
.step-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,106,0,.35);
}
.step-num{
  width:48px;
  height:48px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:1.2rem;
  color:#fff;
  margin:0 auto 20px;
  box-shadow:0 0 24px rgba(255,106,0,.4);
}
.step-item h4{
  color:#fff;
  font-weight:600;
  font-size:1.1rem;
  margin-bottom:12px;
}
.step-item p{
  color:var(--text-muted);
  font-size:.88rem;
  margin-bottom:0;
}

/* ===== CATEGORY CARDS ===== */
.cat-card{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  height:240px;
  display:flex;
  align-items:flex-end;
  background-size:cover;
  background-position:center;
  transition:var(--transition);
  border:1px solid var(--dark-border);
}
.cat-card:hover{
  transform:translateY(-6px) scale(1.02);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,106,0,.5);
}
.cat-card .overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(transparent 30%,rgba(10,13,22,.92));
  transition:var(--transition);
}
.cat-card:hover .overlay{background:linear-gradient(transparent 10%,rgba(10,13,22,.96));}
.cat-card-content{
  position:relative;
  z-index:2;
  padding:26px;
  width:100%;
}
.cat-card-content h3{
  color:#fff;
  font-size:1.3rem;
  font-weight:700;
  margin-bottom:6px;
}
.cat-card-content p{
  color:rgba(255,255,255,.7);
  font-size:.85rem;
  margin-bottom:12px;
}

/* ===== FAQ ===== */
.faq-section{
  background:var(--dark);
}
.faq-item{
  background:var(--dark-card);
  border:1px solid var(--dark-border);
  border-radius:14px;
  padding:24px 28px;
  margin-bottom:12px;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(0,229,255,.3);
  background:var(--dark-card-hover);
}
.faq-item h4{
  font-size:1rem;
  font-weight:600;
  color:#fff;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
}
.faq-item h4 i{
  color:var(--accent);
  font-size:.9rem;
  width:20px;
}
.faq-item p{
  color:var(--text-muted);
  font-size:.9rem;
  margin:0 0 0 30px;
  line-height:1.7;
}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  padding:90px 0;
  background:linear-gradient(135deg,rgba(255,106,0,.15),rgba(11,15,26,.7)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
  width:800px;
  height:800px;
  background:radial-gradient(circle,rgba(255,106,0,.2),transparent 60%);
  pointer-events:none;
}
.cta-content{
  text-align:center;
  position:relative;
  z-index:2;
}
.cta-content h2{
  font-size:2.4rem;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.cta-content p{
  color:var(--text-muted);
  max-width:560px;
  margin:0 auto 32px;
  font-size:1rem;
}
.cta-btns{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:16px;
}

/* ===== FOOTER ===== */
.footer{
  background:rgba(8,10,16,.98);
  border-top:1px solid var(--dark-border);
  padding:70px 0 30px;
}
.footer-brand{
  font-size:1.4rem;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:8px;
}
.footer-brand i{color:var(--primary);}
.footer-desc{
  color:var(--text-muted);
  font-size:.9rem;
  line-height:1.7;
  margin-bottom:24px;
  max-width:340px;
}
.footer-title{
  font-size:1rem;
  font-weight:600;
  color:#fff;
  margin-bottom:20px;
  position:relative;
  padding-bottom:12px;
}
.footer-title::after{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:32px;
  height:2px;
  background:var(--primary);
  box-shadow:0 0 8px var(--primary);
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  color:var(--text-muted);
  font-size:.9rem;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:var(--transition);
}
.footer-links a:hover{
  color:var(--primary);
  padding-left:4px;
}
.footer-links a i{
  font-size:.7rem;
  color:var(--primary);
  opacity:.7;
}
.footer-bottom{
  border-top:1px solid var(--dark-border);
  padding-top:28px;
  margin-top:50px;
  text-align:center;
  color:var(--text-muted);
  font-size:.85rem;
}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .hero{padding:100px 0 70px;}
  .hero h1{font-size:2.8rem;}
  .section-title{font-size:2.1rem;}
}
@media(max-width:768px){
  .navbar{padding:0 16px;}
  .nav-toggle{
    display:flex;
  }
  .nav-links{
    display:none;
    position:absolute;
    top:70px;
    left:0;
    right:0;
    flex-direction:column;
    background:rgba(10,13,22,.98);
    padding:16px;
    border-bottom:1px solid var(--dark-border);
    z-index:1000;
    gap:4px;
  }
  .nav-links.open{
    display:flex;
  }
  .nav-links .nav-item{
    width:100%;
    text-align:left;
    padding:12px 16px;
  }
  .nav-cta{margin-top:8px;justify-content:center;}
  .hero{padding:80px 0 60px;min-height:auto;}
  .hero h1{font-size:2.2rem;}
  .hero-stats{gap:20px;margin-top:40px;}
  .section{padding:70px 0;}
  .section-title{font-size:1.7rem;}
  .ranking-card{flex-wrap:wrap;gap:10px;}
  .ranking-stat{border-left:none;padding:0;}
}
@media(max-width:520px){
  .hero h1{font-size:1.7rem;}
  .hero p{font-size:.95rem;}
  .hero-btns{gap:12px;flex-direction:column;align-items:stretch;}
  .btn-primary-custom,.btn-outline-custom{justify-content:center;}
  .section-title{font-size:1.4rem;}
  .section-desc{font-size:.9rem;}
  .feature-card{padding:26px 20px;}
  .cat-card{height:200px;}
  .cta-content h2{font-size:1.6rem;}
  .footer{padding:50px 0 24px;}
}

/* roulang page: category1 */
:root{
  --primary:#00e5a0;
  --primary-dark:#00b87e;
  --primary-glow:rgba(0,229,160,.35);
  --accent:#7c4dff;
  --accent-glow:rgba(124,77,255,.28);
  --bg:#0d1117;
  --bg-2:#161b22;
  --bg-3:#1c232e;
  --panel:rgba(28,35,46,.75);
  --text:#f0f6fc;
  --text-muted:#8b949e;
  --border:rgba(255,255,255,.08);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 60px rgba(0,0,0,.5);
  --shadow-sm:0 8px 28px rgba(0,0,0,.35);
  --transition:.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font-family:inherit}
.container{max-width:1200px;padding-left:20px;padding-right:20px}

/* 导航 */
.navbar{
  background:rgba(13,17,23,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:1050;
  min-height:70px;
}
.navbar::after{
  content:"";
  display:block;
  height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent),transparent);
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
}
.navbar-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:70px;
  gap:20px;
}
.brand-text{
  font-size:1.22rem;
  font-weight:800;
  letter-spacing:.5px;
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  white-space:nowrap;
}
.brand-text i{
  color:var(--primary);
  font-size:1.4rem;
  filter:drop-shadow(0 0 8px var(--primary-glow));
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:6px;
  padding:9px 18px;
  border-radius:30px;
  font-size:.92rem;
  font-weight:600;
  color:var(--text-muted);
  transition:var(--transition);
}
.nav-item:hover{
  color:#fff;
  background:rgba(255,255,255,.06);
}
.nav-item.active{
  color:var(--primary);
  background:rgba(0,229,160,.1);
  box-shadow:0 0 18px var(--primary-glow),inset 0 0 0 1px rgba(0,229,160,.25);
}
.nav-toggle{
  display:none;
  background:rgba(255,255,255,.06);
  border:1px solid var(--border);
  color:var(--text);
  width:42px;
  height:42px;
  border-radius:10px;
  font-size:1.1rem;
  cursor:pointer;
  transition:var(--transition);
}
.nav-toggle:hover{
  background:rgba(0,229,160,.1);
  color:var(--primary);
  border-color:rgba(0,229,160,.4);
}
@media(max-width:768px){
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .nav-links{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:rgba(13,17,23,.98);
    border-bottom:1px solid var(--border);
    padding:16px 20px;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
  }
  .nav-links.open{display:flex}
  .nav-item{justify-content:center;padding:12px 18px}
}

/* Hero 内页大图 */
.category-hero{
  position:relative;
  min-height:460px;
  display:flex;
  align-items:center;
  padding:80px 0;
  background:linear-gradient(135deg,rgba(13,17,23,.88),rgba(28,35,46,.72)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.category-hero::before{
  content:"";
  position:absolute;
  top:-120px;
  right:-80px;
  width:420px;
  height:420px;
  background:radial-gradient(circle,var(--primary-glow),transparent 65%);
  border-radius:50%;
  pointer-events:none;
}
.category-hero::after{
  content:"";
  position:absolute;
  bottom:-100px;
  left:-60px;
  width:320px;
  height:320px;
  background:radial-gradient(circle,var(--accent-glow),transparent 60%);
  border-radius:50%;
  pointer-events:none;
}
.hero-breadcrumb{
  display:flex;
  gap:8px;
  align-items:center;
  font-size:.86rem;
  color:var(--text-muted);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.hero-breadcrumb i{font-size:.7rem;color:var(--primary)}
.hero-breadcrumb a:hover{color:var(--primary)}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(0,229,160,.12);
  border:1px solid rgba(0,229,160,.35);
  color:var(--primary);
  padding:6px 16px;
  border-radius:30px;
  font-size:.82rem;
  font-weight:700;
  letter-spacing:1px;
  margin-bottom:18px;
  box-shadow:0 0 16px var(--primary-glow);
}
.category-hero h1{
  font-size:2.9rem;
  font-weight:900;
  line-height:1.25;
  margin-bottom:16px;
  text-shadow:0 4px 24px rgba(0,0,0,.4);
  background:linear-gradient(135deg,#fff,var(--primary));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.category-hero p{
  color:rgba(240,246,252,.82);
  font-size:1.06rem;
  max-width:680px;
  margin-bottom:26px;
}
.hero-badges{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.hero-badges span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(255,255,255,.07);
  border:1px solid var(--border);
  padding:8px 14px;
  border-radius:8px;
  font-size:.85rem;
  color:var(--text-muted);
}
.hero-badges i{color:var(--primary)}
@media(max-width:768px){
  .category-hero{padding:60px 0;min-height:400px}
  .category-hero h1{font-size:2rem}
}

/* 板块通用 */
.section{
  padding:90px 0;
  position:relative;
}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8rem;
  font-weight:700;
  letter-spacing:2px;
  text-transform:uppercase;
  color:var(--primary);
  background:rgba(0,229,160,.08);
  border-radius:30px;
  padding:6px 16px;
  margin-bottom:14px;
}
.section-title{
  font-size:2rem;
  font-weight:800;
  line-height:1.35;
  margin-bottom:14px;
}
.section-sub{
  color:var(--text-muted);
  font-size:.98rem;
  max-width:620px;
}
.section-head{
  margin-bottom:46px;
}
.text-glow{color:var(--primary)}
.bg-alt{background:var(--bg-2)}
.bg-alt2{background:var(--bg-3)}
@media(max-width:768px){
  .section{padding:64px 0}
  .section-title{font-size:1.55rem}
}

/* 统计卡片 */
.stat-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:38px 24px;
  text-align:center;
  transition:var(--transition);
  height:100%;
  backdrop-filter:blur(8px);
}
.stat-card:hover{
  transform:translateY(-6px);
  border-color:rgba(0,229,160,.35);
  box-shadow:0 16px 40px rgba(0,0,0,.4),0 0 24px var(--primary-glow);
}
.stat-num{
  font-size:2.6rem;
  font-weight:900;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  line-height:1.2;
}
.stat-label{
  color:var(--text-muted);
  font-size:.9rem;
  margin-top:8px;
  font-weight:500;
}

/* 内容卡片 */
.guide-card{
  background:var(--bg-3);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
}
.guide-card:hover{
  transform:translateY(-8px);
  border-color:rgba(0,229,160,.4);
  box-shadow:0 20px 50px rgba(0,0,0,.45),0 0 30px var(--primary-glow);
}
.card-thumb{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
}
.card-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.guide-card:hover .card-thumb img{transform:scale(1.06)}
.card-meta{
  position:absolute;
  bottom:12px;
  left:12px;
  z-index:2;
  background:rgba(0,229,160,.92);
  color:#0d1117;
  font-size:.74rem;
  font-weight:700;
  padding:4px 12px;
  border-radius:20px;
  box-shadow:0 4px 14px rgba(0,0,0,.4);
}
.card-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-body h3{
  font-size:1.12rem;
  font-weight:700;
  margin-bottom:10px;
  line-height:1.5;
}
.card-body p{
  color:var(--text-muted);
  font-size:.9rem;
  flex:1;
  margin-bottom:16px;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:.86rem;
  font-weight:600;
}
.card-link i{transition:transform .3s}
.card-link:hover i{transform:translateX(4px)}
.card-footer-bar{
  padding:14px 22px;
  border-top:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:var(--text-muted);
  font-size:.78rem;
}

/* 时间线 */
.timeline{
  position:relative;
  padding-left:32px;
  max-width:720px;
  margin:0 auto;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:0;
  bottom:0;
  width:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent),transparent);
}
.timeline-item{
  position:relative;
  padding-bottom:42px;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;
  left:-32px;
  top:6px;
  width:20px;
  height:20px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--primary);
  box-shadow:0 0 14px var(--primary-glow);
  display:flex;
  align-items:center;
  justify-content:center;
}
.timeline-dot i{
  font-size:.55rem;
  color:var(--primary);
}
.timeline-content{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:22px;
  transition:var(--transition);
}
.timeline-content:hover{
  border-color:rgba(0,229,160,.3);
  box-shadow:0 10px 30px rgba(0,0,0,.3);
}
.timeline-content h3{
  font-size:1.05rem;
  font-weight:700;
  margin-bottom:8px;
}
.timeline-content p{
  color:var(--text-muted);
  font-size:.88rem;
}

/* 排行榜 */
.rank-table{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
}
.rank-header,.rank-row{
  display:grid;
  grid-template-columns:60px 1fr 120px 90px;
  gap:14px;
  padding:16px 22px;
  align-items:center;
}
.rank-header{
  background:rgba(0,229,160,.08);
  font-size:.8rem;
  font-weight:700;
  letter-spacing:1px;
  color:var(--primary);
  text-transform:uppercase;
  border-bottom:1px solid rgba(0,229,160,.2);
}
.rank-row{
  border-bottom:1px solid var(--border);
  transition:var(--transition);
}
.rank-row:last-child{border-bottom:none}
.rank-row:hover{
  background:rgba(0,229,160,.04);
}
.rank-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:50%;
  background:var(--bg-3);
  font-size:.8rem;
  font-weight:700;
  color:var(--text-muted);
}
.rank-row:nth-child(2) .rank-num,
.rank-row:nth-child(3) .rank-num{
  background:rgba(0,229,160,.15);
  color:var(--primary);
  box-shadow:0 0 12px var(--primary-glow);
}
.rank-team{
  display:flex;
  align-items:center;
  gap:12px;
  font-weight:600;
}
.rank-team i{
  width:36px;
  height:36px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.9rem;
  background:var(--bg-3);
  color:var(--primary);
}
.rank-points{
  font-weight:800;
  color:var(--primary);
}
.rank-trend{
  font-size:.8rem;
  color:var(--text-muted);
}
@media(max-width:768px){
  .rank-header,.rank-row{
    grid-template-columns:44px 1fr 76px 60px;
    gap:10px;
    padding:14px 16px;
    font-size:.85rem;
  }
}

/* FAQ */
.faq-item{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  margin-bottom:16px;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(0,229,160,.3);
}
.faq-q{
  padding:20px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  cursor:pointer;
  font-weight:600;
  font-size:.96rem;
}
.faq-q i{
  color:var(--primary);
  font-size:.75rem;
  transition:transform .4s;
  flex-shrink:0;
}
.faq-item.open .faq-q i{
  transform:rotate(180deg);
}
.faq-a{
  padding:0 24px;
  max-height:0;
  overflow:hidden;
  transition:max-height .45s ease;
  color:var(--text-muted);
  font-size:.9rem;
}
.faq-item.open .faq-a{
  padding-bottom:20px;
  max-height:260px;
}

/* CTA */
.cta-section{
  position:relative;
  background:linear-gradient(135deg,rgba(0,229,160,.14),rgba(124,77,255,.12)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-radius:var(--radius);
  padding:60px 48px;
  overflow:hidden;
  border:1px solid rgba(0,229,160,.25);
}
.cta-section::before{
  content:"";
  position:absolute;
  top:-80px;
  right:-80px;
  width:260px;
  height:260px;
  background:radial-gradient(circle,var(--primary-glow),transparent 70%);
  border-radius:50%;
}
.cta-section h2{
  font-size:1.9rem;
  font-weight:800;
  margin-bottom:12px;
}
.cta-section p{
  color:rgba(240,246,252,.78);
  max-width:560px;
  margin-bottom:28px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 30px;
  border-radius:12px;
  font-size:.9rem;
  font-weight:700;
  border:none;
  cursor:pointer;
  transition:var(--transition);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#0d1117;
  box-shadow:0 8px 24px var(--primary-glow);
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 14px 34px rgba(0,229,160,.4);
  color:#0d1117;
}
.btn-outline{
  background:transparent;
  border:1px solid rgba(255,255,255,.3);
  color:var(--text);
}
.btn-outline:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:rgba(0,229,160,.06);
  transform:translateY(-3px);
}

/* 页脚 */
.footer{
  background:#0a0d12;
  border-top:1px solid var(--border);
  padding:70px 0 40px;
  margin-top:90px;
  position:relative;
}
.footer::before{
  content:"";
  display:block;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),var(--accent),transparent);
  position:absolute;
  top:-1px;
  left:0;
  right:0;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.2rem;
  font-weight:800;
  margin-bottom:14px;
}
.footer-brand i{color:var(--primary)}
.footer-desc{
  color:var(--text-muted);
  font-size:.88rem;
  max-width:360px;
  margin-bottom:18px;
}
.footer-title{
  color:#fff;
  font-size:.95rem;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.5px;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{margin-bottom:10px}
.footer-links a{
  color:var(--text-muted);
  font-size:.86rem;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
}
.footer-links a i{
  font-size:.65rem;
  color:var(--primary);
}
.footer-links a:hover{
  color:var(--primary);
  transform:translateX(4px);
}
.footer-bottom{
  border-top:1px solid var(--border);
  margin-top:50px;
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  color:rgba(255,255,255,.35);
  font-size:.82rem;
}
@media(max-width:768px){
  .footer{margin-top:60px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* focus */
a:focus-visible,button:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:4px;
}

/* roulang page: article */
:root {
  --bg-primary: #080d18;
  --bg-secondary: #0e1424;
  --bg-card: #131c30;
  --bg-deep: #05080f;
  --accent: #00d4ff;
  --accent-hover: #5ce6ff;
  --accent-glow: 0 0 28px rgba(0, 212, 255, .3);
  --accent-alt: #ffb800;
  --text-title: #eef4fc;
  --text-body: #c3d0e0;
  --text-muted: #8296ad;
  --border: rgba(255, 255, 255, .08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, .45);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, .32);
  --shadow-sm: 0 6px 18px rgba(0, 0, 0, .22);
  --transition: all .3s ease;
  --font-main: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', -apple-system, 'Segoe UI', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--accent); }
.container { max-width: 1240px; padding-left: 20px; padding-right: 20px; }
section { position: relative; }

/* ===== Navbar ===== */
.navbar {
  background: rgba(8, 13, 24, .93);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0;
  min-height: 74px;
  position: sticky;
  top: 0;
  z-index: 1050;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .4);
}
.navbar-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 16px;
}
.brand-text {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: .02em;
  position: relative;
  z-index: 1;
  white-space: nowrap;
}
.brand-text i {
  color: var(--accent);
  font-size: 1.4rem;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, .55));
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  transition: var(--transition);
  letter-spacing: .01em;
}
.nav-item:hover {
  color: var(--text-title);
  background: rgba(255, 255, 255, .04);
}
.nav-item.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(0, 212, 255, .22), rgba(0, 212, 255, .08));
  box-shadow: inset 0 0 0 1px rgba(0, 212, 255, .45), 0 0 22px rgba(0, 212, 255, .14);
}
.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(0, 212, 255, .8);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-title);
  font-size: 1.15rem;
  padding: 7px 13px;
  cursor: pointer;
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Buttons ===== */
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .98rem;
  color: #071018;
  background: linear-gradient(135deg, var(--accent), #4ce0ff);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 26px rgba(0, 212, 255, .3);
  text-shadow: none;
}
.btn-accent:hover {
  color: #071018;
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(0, 212, 255, .4);
}
.btn-outline-accent {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .96rem;
  color: var(--accent);
  background: transparent;
  border: 1px solid rgba(0, 212, 255, .5);
  cursor: pointer;
  transition: var(--transition);
}
.btn-outline-accent:hover {
  background: rgba(0, 212, 255, .1);
  color: var(--accent-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 212, 255, .15);
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 120px 0 70px;
  background:
    linear-gradient(135deg, rgba(5, 8, 15, .88) 0%, rgba(8, 13, 24, .82) 50%, rgba(5, 8, 15, .92) 100%),
    url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  overflow: hidden;
  border-bottom: 1px solid rgba(0, 212, 255, .2);
}
.article-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-alt), transparent);
  z-index: 2;
}
.article-hero::after {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 212, 255, .18), transparent 65%);
  pointer-events: none;
  z-index: 0;
}
.article-hero .container { position: relative; z-index: 1; }
.crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .88rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: fit-content;
  backdrop-filter: blur(10px);
}
.crumb a { color: var(--text-muted); }
.crumb a:hover { color: var(--accent); }
.crumb i { font-size: .6rem; color: rgba(255, 255, 255, .25); }
.crumb .current { color: var(--accent); font-weight: 600; }
.article-hero-title {
  max-width: 860px;
  margin: 0 0 22px;
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-title);
  letter-spacing: .015em;
  text-shadow: 0 4px 22px rgba(0, 0, 0, .5);
}
.article-hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 15px;
  border-radius: 999px;
  font-size: .83rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(0, 212, 255, .12);
  border: 1px solid rgba(0, 212, 255, .35);
}
.hero-date {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .87rem;
  color: var(--text-muted);
}
.hero-date i { color: var(--accent-alt); }

/* ===== Article Main ===== */
.article-main {
  padding: 60px 0 60px;
  background: var(--bg-primary);
}
.article-content-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 42px 46px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.article-content-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, .7), transparent);
}
.article-content {
  font-size: 1.02rem;
  line-height: 1.95;
  color: var(--text-body);
}
.article-content h1,
.article-content h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-title);
  margin: 2.2rem 0 1rem;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-title);
  margin: 1.8rem 0 .7rem;
}
.article-content p { margin-bottom: 1.3rem; }
.article-content img {
  border-radius: var(--radius-md);
  max-width: 100%;
  margin: 1.8rem 0;
  box-shadow: var(--shadow-sm);
}
.article-content blockquote {
  border-left: 4px solid var(--accent-alt);
  padding: 14px 20px;
  background: rgba(255, 255, 255, .03);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.8rem 0;
  color: #d9e2ee;
  font-style: normal;
}
.article-content ul,
.article-content ol {
  padding-left: 1.6rem;
  margin-bottom: 1.4rem;
}
.article-content li { margin-bottom: .45rem; }
.article-content a { color: var(--accent); border-bottom: 1px solid rgba(0, 212, 255, .3); }
.article-content a:hover { color: var(--accent-hover); border-color: var(--accent); }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6rem 0;
  font-size: .94rem;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-content table th {
  background: rgba(0, 212, 255, .07);
  color: var(--text-title);
  font-weight: 700;
}
.article-divider {
  height: 1px;
  background: var(--border);
  margin: 2rem 0;
}
.article-share {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}
.share-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .92rem;
  color: var(--text-muted);
  font-weight: 600;
}
.share-btns { display: flex; gap: 10px; }
.share-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .92rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.share-btn:hover {
  color: var(--accent);
  border-color: rgba(0, 212, 255, .5);
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .3);
}
.not-found-box {
  text-align: center;
  padding: 60px 30px;
}
.not-found-box i {
  font-size: 3.2rem;
  color: var(--accent);
  opacity: .5;
  margin-bottom: 18px;
}
.not-found-box h2 {
  font-size: 1.6rem;
  color: var(--text-title);
  margin-bottom: 12px;
}
.not-found-box p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ===== Sidebar ===== */
.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 26px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.sidebar-card::before {
  content: '';
  position: absolute;
  top: 0; left: 26px; right: 26px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.sidebar-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.06rem;
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 18px;
}
.sidebar-title i {
  color: var(--accent);
  font-size: .95rem;
}
.sidebar-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sidebar-info-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
  font-size: .9rem;
}
.sidebar-info-list li:last-child { border-bottom: none; }
.sidebar-info-list li span:first-child { color: var(--text-muted); }
.sidebar-info-list li .info-val { color: var(--text-body); font-weight: 600; }
.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sidebar-links a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-radius: 10px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--text-body);
  background: rgba(255, 255, 255, .03);
  border: 1px solid transparent;
  transition: var(--transition);
}
.sidebar-links a:hover {
  background: rgba(0, 212, 255, .07);
  border-color: rgba(0, 212, 255, .25);
  color: var(--accent);
  transform: translateX(3px);
}
.sidebar-links a i {
  width: 20px;
  text-align: center;
  color: var(--accent);
  font-size: .85rem;
}
.sidebar-news-item {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
  transition: var(--transition);
}
.sidebar-news-item:last-child { border-bottom: none; }
.sidebar-news-item:hover { padding-left: 6px; }
.sidebar-news-item .news-cat {
  font-size: .75rem;
  color: var(--accent);
  font-weight: 700;
  background: rgba(0, 212, 255, .1);
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: .03em;
}
.sidebar-news-item .news-title {
  display: block;
  font-size: .93rem;
  font-weight: 600;
  color: var(--text-body);
  margin: 8px 0 5px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sidebar-news-item:hover .news-title { color: var(--accent); }
.sidebar-news-item .news-time {
  font-size: .78rem;
  color: var(--text-muted);
}
.sidebar-note {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Related Section ===== */
.related-section {
  padding: 70px 0 80px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.related-section::before {
  content: '';
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 500px; height: 120px;
  background: radial-gradient(ellipse, rgba(0, 212, 255, .08), transparent 70%);
  pointer-events: none;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 38px;
}
.section-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .83rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-tagline i { font-size: .75rem; }
.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-title);
  margin: 0;
  line-height: 1.3;
  letter-spacing: .01em;
}
.section-title span { color: var(--accent); }
.related-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
  position: relative;
}
.related-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, .35);
  box-shadow: var(--shadow-lg);
}
.related-card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.related-card:hover .related-card-img img { transform: scale(1.07); }
.related-card-img::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60%;
  background: linear-gradient(to top, rgba(8, 13, 24, .7), transparent);
}
.related-card-body {
  padding: 22px 22px 24px;
}
.related-card-body .tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(0, 212, 255, .1);
  border: 1px solid rgba(0, 212, 255, .25);
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  letter-spacing: .04em;
}
.related-card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}
.related-card:hover .related-card-body h3 { color: var(--accent); }
.related-card-body p {
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--accent);
  transition: var(--transition);
}
.related-card:hover .read-more { gap: 12px; }
.related-card:hover .read-more i { transform: translateX(2px); }

/* ===== CTA Section ===== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background:
    linear-gradient(rgba(5, 8, 15, .88), rgba(5, 8, 15, .9)),
    url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-alt), transparent);
}
.cta-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-title);
  line-height: 1.35;
  margin-bottom: 14px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.cta-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.cta-btns { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }

/* ===== FAQ Section ===== */
.faq-section {
  padding: 74px 0;
  background: var(--bg-primary);
}
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-header { text-align: center; margin-bottom: 44px; }
.faq-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-title);
  line-height: 1.3;
}
.faq-subtitle {
  font-size: .98rem;
  color: var(--text-muted);
  margin-top: 8px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(0, 212, 255, .25); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: transparent;
  border: none;
  padding: 18px 24px;
  color: var(--text-title);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}
.faq-question:hover { color: var(--accent); }
.faq-question i {
  color: var(--accent);
  font-size: .8rem;
  flex-shrink: 0;
  transition: transform .3s ease;
}
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  color: var(--text-muted);
  font-size: .94rem;
  line-height: 1.8;
}
.faq-item.open .faq-answer {
  padding: 0 24px 20px;
  max-height: 320px;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-deep);
  padding: 70px 0 0;
  border-top: 1px solid var(--border);
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, .4), transparent);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 18px;
}
.footer-brand i {
  color: var(--accent);
  font-size: 1.4rem;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, .4));
}
.footer-desc {
  font-size: .92rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 340px;
}
.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 32px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-alt));
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-links a i { font-size: .65rem; color: rgba(0, 212, 255, .5); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-links a:hover i { color: var(--accent); }
.footer-bottom {
  margin-top: 48px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, .05);
  text-align: center;
  font-size: .88rem;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-hero { padding: 100px 0 56px; }
  .article-hero-title { font-size: 2.2rem; }
  .article-content-card { padding: 34px 32px; }
  .cta-title { font-size: 1.9rem; }
}
@media (max-width: 768px) {
  .navbar-wrap { min-height: 66px; }
  .brand-text { font-size: 1.08rem; gap: 8px; }
  .brand-text i { font-size: 1.15rem; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(8, 13, 24, .98);
    border-bottom: 1px solid var(--border);
    padding: 14px 20px 18px;
    gap: 6px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    z-index: 1040;
  }
  .nav-links.open { display: flex; }
  .nav-item { border-radius: 10px; padding: 12px 16px; justify-content: flex-start; }
  .article-hero { padding: 80px 0 46px; }
  .article-hero-title { font-size: 1.7rem; }
  .article-content-card { padding: 28px 22px; border-radius: 14px; }
  .article-content { font-size: .98rem; }
  .section-title { font-size: 1.6rem; }
  .cta-title { font-size: 1.6rem; }
  .cta-section { padding: 64px 0; }
  .sidebar-card { padding: 22px 20px; }
}
@media (max-width: 520px) {
  .navbar-wrap { gap: 10px; }
  .brand-text { font-size: .95rem; }
  .brand-text i { font-size: 1rem; }
  .article-hero { padding: 64px 0 40px; }
  .article-hero-title { font-size: 1.35rem; }
  .crumb { padding: 6px 12px; font-size: .78rem; }
  .hero-tag, .hero-date { font-size: .78rem; }
  .article-content-card { padding: 24px 18px; }
  .article-content h2 { font-size: 1.18rem; }
  .section-title { font-size: 1.35rem; }
  .cta-title { font-size: 1.3rem; }
  .cta-desc { font-size: .92rem; }
  .cta-btns .btn-accent,
  .cta-btns .btn-outline-accent { width: 100%; justify-content: center; }
  .footer { padding-top: 50px; }
}